TW201447072A - Water tap - Google Patents

Abstract

The present invention discloses a water tap, comprising a first flow passage connected to a hot water supply source, a second flow passage connected to a cold water supply source, and a third flow passage having a mixing unit for mixing the first flow passage and the second flow passage, an outlet being arranged at the downstream side of the mixing unit. The first flow passage is disposed with a first on-off valve to arbitrarily adjust the opening amount. The second flow passage is disposed with a second on-off valve to arbitrarily adjust the opening amount. The third flow passage, located at downstream of the mixing unit, is configured with a detecting unit to detect the temperature of hot and cold water in the third flow passage. The water tap further includes a control unit for controlling the opening amount of the first and second on-off valves. The control unit performs feedback control, in accordance with the detected temperature of the detecting unit, to adjust the opening amount.

Description

Faucet

The present invention relates to a general faucet, and more particularly to a mixing faucet that mixes hot water with cold water and flows out of the mixed hot and cold water.

Japanese Laid-Open Patent Publication No. 2003-222253 (hereinafter, Document 1) discloses a conventional hot and cold water mixing valve. This hot and cold water mixing valve sets the temperature of the water to be the water temperature desired by the user (hereinafter referred to as the desired temperature). The hot and cold water mixing valve supplies warm water (cold water mixed with hot water) at a stable temperature in a manner close to the set temperature. The hot and cold water mixing valve, in the mixing tank of the hot and cold water, is provided with an inlet for the flow of cold water and an input port for the inflow of hot water. In the valve box, the valve chamber can be arranged in an arbitrarily rotatable manner. The opening area of each input port changes depending on the rotation of the valve chamber. The hot and cold water mixing valve adjusts the flow rate of the cold water and the hot water flowing into the valve box by changing the opening area of each input port, and adjusts the temperature of the warm water flowing out of the valve box by adjusting the flow rate, Become the desired temperature.

In addition, the water supply pressure may vary depending on the area and the living form (independent dwellings, or the lower floors and high floors of the dwelling houses), and may differ from the design values of the mixing faucets. In this case, if only the flow path cross-sectional area (the opening area) is adjusted, it is not possible to correspond to the difference in the water supply pressure (the water supply pressure different from the design value or the like). As a result, the above-mentioned hot and cold water mixing valve has a case where warm water of a temperature that does not satisfy the desired temperature flows out. In other words, the temperature of the hot and cold water mixing valve in the state where the hot water and the cold water are mixed may not satisfy the desired temperature depending on the water supply pressure.

As described above, the conventional mixing faucet including the hot and cold water mixing valve has a problem that it is susceptible to the influence of the water supply pressure depending on the area and the living form. As a result, it is difficult for the user to obtain hot water or cold water (cold and hot water) of a desired water temperature.

In view of the above problems, an object of the present invention is to provide a faucet that can discharge cold and hot water at a desired water temperature by reducing the influence of a difference in water supply pressures such as a surrounding area and a living form.

A faucet according to a first aspect of the present invention includes a first flow path connected to a hot water supply source, a second flow path connected to a cold water supply source, and a third flow path. The third flow path has a mixing portion that mixes the first flow path and the second flow path. The third flow path is provided with an outflow port on the downstream side of the mixing portion. The first opening/closing valve that can arbitrarily adjust the opening amount is provided in the first flow path. A second opening and closing valve that can arbitrarily adjust the opening amount is provided in the second flow path. In the third flow path, a detecting portion that detects the temperature of the cold and hot water in the third flow path is provided on the downstream side of the mixing portion. The faucet further includes a control unit that controls an opening amount of the first opening and closing valve and the second opening and closing valve. The control unit performs feedback control to adjust the amount of opening in accordance with the detected temperature of the detecting unit.

The hot water supply source is, for example, a water heater, whereby hot water is circulated to the first flow path. The cold water supply source is, for example, a water pipe, whereby cold water is caused to flow through the second flow path. The hot water temperature is higher than cold water.

In the faucet according to the second aspect of the present invention, in the first aspect, the control unit performs a stop control of stopping the flow of the hot and cold water from the outlet when the detection unit detects a predetermined temperature or higher.

In the faucet according to the third aspect of the present invention, in the second aspect, when the third flow path is switched from the stopped state to the outflow state, the detecting unit detects the predetermined temperature. Above, the outflow of hot and cold water from the outflow port is stopped. In the stop control, when the temperature of the hot and cold water in the third flow path rises and the detection unit detects a predetermined temperature or higher, the flow of the hot and cold water from the outlet is continued.

In the faucet according to the fourth aspect of the present invention, in any one of the first to third aspects, the electrolytic channel is provided in the third flow path. In the electrolytic cell, hot and cold water is electrolyzed, and a gas generated by the electrolysis is dissolved in hot and cold water to generate functional water. The outflow port is provided on the downstream side of the electrolytic cell. The faucet is provided with a first mode in which the functional water flows out from the outlet. When the first mode is selected, the control unit controls one or both of the first on-off valve and the second on-off valve to lower the temperature of the hot and cold water.

In the faucet according to the fifth aspect of the present invention, in any one of the first to third aspects, the electrolytic channel is provided in the third flow path. In the electrolytic cell, hot and cold water is electrolyzed to produce a function water in which a gas generated by the electrolysis is precipitated as a bubble. The outflow port is provided on the downstream side of the electrolytic cell. The faucet is provided with a second mode in which the functional water flows out from the outlet. When the control unit selects the second mode, one or both of the first on-off valve and the second on-off valve are controlled to increase the temperature of the hot and cold water.

In the faucet according to the sixth aspect of the present invention, in any one of the first to third aspects, the detecting portion is provided at the outflow port.

A faucet according to a seventh aspect of the present invention includes: a first flow path connected to a hot water supply source; and a second flow path connected to a cold water supply source. The first flow path has a first flow outlet. The second flow path has a second outflow port. The faucet also has an outflow section. The first outflow port and the second outflow port are independently provided in the outflow portion. A treatment unit that granulates cold water is provided in the second outlet.

In the faucet according to the eighth aspect of the present invention, in the seventh aspect, the heating unit is provided in the first flow path, and the cold water in the first flow path is heated.

In addition, the cold water mentioned here contains a liquid having a higher temperature than normal temperature.

In the faucet according to the ninth aspect of the present invention, in the eighth aspect, the faucet further includes a detecting unit and a control unit. The detecting unit detects the temperature of the hot water in the first flow path on the upstream side of the heating unit. The control unit switches the heating performed by the heating unit and the stopping of the heating according to the detection result of the detecting unit.

According to a ninth aspect of the invention, in the faucet according to the ninth aspect, the detecting unit includes the first detecting unit and the third detecting unit. The first detecting unit is provided on the upstream side of the heating unit. The third detecting unit detects the presence or absence of the flow of the liquid in the first flow path. When the third detecting unit detects that the liquid flows, and the first detecting unit detects the hot water temperature that is less than the first value, the control unit controls the heating unit to perform heating. Further, when the third detecting unit detects the flow of the liquid, and the first detecting unit detects the hot water temperature of the first value or more, the control unit controls the heating unit to stop the heating.

In any one of the seventh to tenth aspects, the faucet according to the eleventh aspect of the present invention, wherein the second outlet is formed in a tubular shape and surrounds the first outlet.

In a faucet according to a twelfth aspect of the present invention, in the aspect of the seventh aspect, the first outlet is configured to flow out linear hot water.

Linear hot water refers to hot water that continuously flows out.

In the faucet according to the thirteenth aspect of the present invention, the faucet according to any one of the seventh to tenth aspects of the present invention further includes an operation unit. The operation unit switches between the first flow outlet and the second flow outlet, and only flows out from the second flow outlet.

In any one of the eighth to tenth aspects of the faucet according to the fourteenth aspect of the present invention, the faucet further includes a heat insulating portion. The heat insulating portion heats a portion of the first flow path that is further downstream than the heating portion.

In the faucet according to the fifteenth aspect of the present invention, in any one of the eighth to tenth aspects, the faucet further includes a control unit that performs heating control of the heating unit. The control unit controls the heating unit to The temperature of the hot and cold water flowing out of the first outlet is 25 ° C or more and 45 ° C or less.

A faucet according to a sixteenth aspect of the present invention includes a first flow path and a second flow path. The first flow path has a first outflow port through which cold water flows. The second flow path has a second outflow port through which warm air flows. The end portion on the first outflow port side of the first flow path is formed into a shape that gradually narrows toward the tip end. The second outflow port is disposed adjacent to the first outflow port. Thereby, the warm air is caused to flow in the second flow path by the action of the negative pressure generated by the flow of the cold water from the first outlet.

In the faucet according to the seventeenth aspect of the present invention, in the sixteenth aspect, the faucet further includes an outflow portion. The first outflow port and the second outflow port are independently provided in the outflow portion.

In the faucet according to the eighteenth or seventeenth aspect of the present invention, the second outlet is formed in a tubular shape so as to surround the first outlet.

In the faucet according to the ninth aspect of the present invention, in the sixteenth aspect, the end portion on the second outlet side of the second flow path has a shape that gradually narrows toward the tip end.

In the faucet according to the twentieth aspect of the present invention, in the sixteenth aspect, the first functional mode and the second functional mode are further provided. In the first functional mode, cold water flows out from the first outlet, and warm air flows out from the second outlet. In the second function mode, only warm air flows out from the second outlet. A fan that is driven during the operation of the second functional mode is provided in the second flow path.

In the faucet according to the twenty-first aspect of the present invention, in the twentieth aspect, the detecting unit that detects the object is further provided. If the object is detected by the detecting unit, the second function mode is activated.

1‧‧‧ mixed faucet

2, 102, 202‧‧‧ first flow path

3, 103, 203‧‧‧ second flow path

4, 142‧‧‧ third flow path

5. 172‧‧‧Control Department

6‧‧‧electrolyzer

11‧‧‧Opening valve

21‧‧‧1st on-off valve

22, 126‧‧ ‧ hot water supply

31‧‧‧2nd opening and closing valve

32, 135‧‧‧ cold water supply

41, 226‧‧ mixed department

42‧‧‧Outflow section (outflow)

43‧‧‧3rd valve

45, 173‧‧ ‧ Inspection Department

46, 174‧‧‧1st detection department

47, 175‧‧‧2nd Inspection Department

61‧‧‧Shell

63‧‧‧1st connection

64‧‧‧2nd connection

65‧‧‧Electrode members

66‧‧‧Power Supply Department

101, 201‧‧‧ faucet

104‧‧‧Processing Department

105‧‧‧5th flow path

106‧‧‧6th flow path

107‧‧‧heater

108, 208‧‧ ‧ objects

109, 271‧‧‧ installation table

111, 211‧‧‧ Shell

112, 214‧‧‧ outflow

113, 212‧‧‧ base

114, 213‧‧ ‧ water outlet

115‧‧‧Operation Department

116‧‧‧1st end

117‧‧‧2nd end

118‧‧‧Insulation Department

121, 221‧‧‧1st outlet

122‧‧‧1st valve

123, 223‧‧‧1st end

124, 222‧‧‧ Part 1

125, 227‧‧‧ third part

131, 232‧‧‧2nd outlet

132‧‧‧2nd valve

133, 235‧‧‧2nd end

134, 234‧‧‧ second part

141‧‧‧ hole flow path

143‧‧‧4th flow path

171, 233‧‧‧ heating department

176‧‧‧3rd Inspection Department

204‧‧‧Air Supply Department

205‧‧‧Detection Department

207‧‧·Nashui Department

224‧‧‧1st reduced diameter

225‧‧‧1st footpath

228‧‧‧4th part

229‧‧‧ water

231‧‧‧Import

236‧‧‧2nd reduction section

237‧‧‧2nd small diameter department

238‧‧‧Filter

239‧‧‧ warm air

240‧‧‧Water source

251‧‧‧Lighting Department

252‧‧‧Light Receiving Department

E1‧‧‧Detection area

Fig. 1 is a schematic view showing the configuration of the first embodiment.

Fig. 2 is a perspective view showing the vicinity of a mixing portion in the first embodiment.

Fig. 3 is an explanatory diagram of the stop control of the first embodiment.

Fig. 4 is an explanatory diagram of feedback control in the first embodiment.

Fig. 5 is a schematic view showing the configuration of the second embodiment.

Fig. 6A is a front elevational view of the electrolytic cell of the second embodiment. Fig. 6B is a cross-sectional view taken along line A-A of Fig. 6A. Fig. 6C is a perspective view of the electrolytic cell of the second embodiment.

Fig. 7 is a schematic view showing a third embodiment.

Fig. 8 is a schematic view showing the configuration of the periphery of the outer casing portion of the third embodiment.

Fig. 9 is a schematic view showing the configuration of a flow path in the third embodiment.

Fig. 10 is a schematic view showing the configuration of the periphery of a pore flow path in the treatment portion of the third embodiment.

Fig. 11 is a schematic view showing the configuration of a heater of the third embodiment.

Fig. 12 is an explanatory diagram corresponding to the detection result of the detecting unit of the third embodiment and the operation of the heating unit.

Fig. 13A is a schematic view showing the configuration of a water discharge device according to a third embodiment. FIG. 13B is an explanatory diagram of the configuration of the water outlet (first outlet) and the outlet (second outlet).

Fig. 14 is a perspective view showing the periphery of the outer casing portion of the third embodiment.

Fig. 15A is a schematic view showing the configuration of the water discharge device of the fourth embodiment in the first mode. Fig. 15B is a schematic view showing the configuration of the water discharge device of the fourth embodiment in the second mode.

Fig. 16 is a perspective view showing the periphery of the outer casing portion of the fourth embodiment.

Fig. 17 is a sectional view taken along line B-B of Fig. 16.

[Fig. 18] Fig. 18A is a diagram showing the correspondence between the detection result of the detecting unit of the fourth embodiment and the operation of the air blowing unit and the heating unit. Fig. 18B is a diagram for explaining the correspondence between the detection result of the detecting unit of the fourth embodiment and the operation of the air blowing unit and the heating unit.

Fig. 19 is a schematic view showing the configuration of a flow path according to a modification.

(Embodiment 1)

The faucet 1 of the present embodiment flows out of hot and cold water. Hot and cold water, including hot water and cold water. Further hot and cold water also contains a mixture of hot water and cold water. Further, in the present embodiment, cold water is defined as a liquid at a normal temperature (for example, 20 ° C ± 15 ° C), and hot water is defined as a liquid having a temperature higher than that of cold water (for example, 35 ° C to 100 ° C).

The faucet (mixing faucet) 1 of the first embodiment is provided, for example, above a water receiving portion such as a sink of a kitchen cabinet or a basin of a washstand. As shown in FIG. 1 and FIG. 2, the mixing faucet 1 includes a first flow path (first passage) into which hot water flows, a second flow path (second passage) 3 into which cold water flows in, and an outgoing first flow path. The third flow path (third passage) 4 of the hot water of 2 and the cold water of the second flow path 3.

The first flow path (first flow path) 2 is connected to the external hot water supply source 22 on the upstream side thereof, and the hot water supply source 22 is, for example, a water heater. The hot water supply source 22 applies water pressure to the hot water. Thereby, hot water can flow to the 3rd flow path 4 via the 1st flow path 2. The end on the downstream side of the first flow path 2 is connected to the third flow path 4. Therefore, the first flow path 2 serves as a hot water supply path for supplying the hot water from the hot water supply source 22 to the third flow path 4 .

Further, the first flow path 2 is provided with an on-off valve 11 (first opening/closing valve 21). The first on-off valve 21 is an on-off valve that can arbitrarily adjust the opening amount (open amount). In other words, the first opening and closing valve 21 can perform switching between the water passage and the water stop of the first flow passage 2 and the flow rate from the first flow passage 2 to the third flow passage 4 when the water is passed. The first on-off valve 21 is, for example, a solenoid valve or an electric valve. The electric valve includes, for example, a motor that serves as a drive source, and a valve body that is opened and closed so that the opening amount (opening degree) can be arbitrarily adjusted by driving the motor.

That is, the first flow path 2 is connected to the hot water supply source 22. The first opening/closing valve 21 that can arbitrarily adjust the opening amount is provided in the first flow path 2. The opening amount of the first flow path 2 is adjusted, for example, the cross-sectional area of the first flow path 2 is changed using a valve body.

The second flow path 3 is connected to an external cold water supply source 32 on the upstream side thereof, and the cold water supply source 32 is, for example, a water pipe. The cold water supply source 32 applies water pressure to the cold water. Thereby, cold water flows to the third flow path 4 via the second flow path 3 . The end on the downstream side of the second flow path 3 is connected to the third flow path 4. Therefore, the second flow path 3 serves as a cold water supply path for supplying cold water from the cold water supply source 32 to the third flow path 4 .

Further, in the second flow path 3, an on-off valve 11 (second on-off valve 31) is provided. The second on-off valve 31 is an on-off valve that can arbitrarily adjust the opening amount (opening amount). In other words, the second on-off valve 31 can be implemented. The flow of the water and the water stop of the second flow path 3 and the flow rate of the third flow path 4 from the second flow path 3 during the water passage are adjusted. The second on-off valve 31 is, for example, a solenoid valve or an electric valve. The electric valve includes, for example, a motor that serves as a drive source, and a valve body that is opened and closed so that the opening amount (opening degree) can be arbitrarily adjusted by driving the motor.

That is, the second flow path 3 is connected to the hot water supply source 32. The second opening/closing valve 31 that can arbitrarily adjust the opening amount is provided in the second flow path 3. The amount of opening of the second flow path 3 is adjusted, for example, by changing the cross-sectional area of the second flow path 3 using the valve body.

The third flow path 4 has a mixing portion 41 on the upstream side thereof. The first flow path 2 and the second flow path 3 are connected to the upstream side of the mixing unit 41. Therefore, the mixing unit 41 can flow into the hot water of the first flow path 2 and the cold water of the second flow path 3. Further, the third flow path 4 is in communication with the mixing unit 41. When both the hot water and the cold water are supplied to the mixing unit 41, the hot water and the cold water are mixed and flow to the downstream side.

In other words, the third flow path 4 has a mixing unit 41 that mixes the first flow path 2 and the second flow path 3. The third flow path 4 is in communication with the mixing unit 41.

The third flow path 4 has an outflow portion (outflow port) 42 on the downstream side thereof. In other words, the outflow port 42 is provided on the downstream side of the mixing portion of the third flow path 4 (more specifically, the end portion on the downstream side). The outflow portion 42 is disposed adjacent to the water containing portion. In other words, the outflow portion 42 is provided to flow in the outflow direction to the water receiving portion. Therefore, the outflow portion 42 causes the hot water (including only hot water or only cold water) flowing in from the mixing portion 41 to flow out to the water receiving portion.

Further, in the third flow path 4, a water stop valve (third valve 43) is provided between the mixing portion 41 and the outflow portion 42. The third valve 43 performs switching of the water passing through the third flow path 4 and the water stop. The third valve 43 is, for example, a solenoid valve or an electric valve. The electric valve includes, for example, a motor that serves as a drive source and a valve body that is opened and closed by the drive of the motor.

Further, the mixing faucet 1 further includes an operation unit (not shown), a detection unit 45, and a control unit 5. The operation unit is configured to perform an outflow and a flow from the outflow portion (outflow port) 42 by the user. The switching operation of the stop (water discharge and water stop) and the change operation of the desired water temperature or the desired outflow amount by the user. In other words, by operating the operation unit, the user can perform switching between the outflow and the stoppage of the outflow portion 42, the setting of the temperature (water temperature) of the hot and cold water flowing out from the outflow portion 42, and the self-flow. The setting of the flow rate (outflow amount) of the hot and cold water flowing out of the unit 42 is changed.

Further, the operation unit is configured, for example, to output the operation (operation result) to the control unit 5, and the control unit 5 thereby obtains the above operation result. Hereinafter, the water temperature set by the operation unit is set to the water temperature, and the outflow amount set by the operation unit is the set flow rate.

The detecting unit 45 detects the temperature (water temperature) of the hot and cold water. The detecting unit 45 is provided between the mixing unit 41 and the third valve 43 in the third flow path 4 . Therefore, the detecting unit 45 can detect the water temperature on the downstream side of the mixing unit 41 in the third flow path 4. The detecting unit 45 is configured, for example, to output the detection result to the control unit 5, and the control unit 5 thereby obtains the detection result.

In other words, the detecting unit 45 is provided in the third flow path 4. The detecting unit 45 is provided on the downstream side of the mixing unit 41. The detecting unit 45 detects the temperature of the hot and cold water in the third flow path 4. The detecting unit 45 is, for example, a temperature sensor. Examples of the temperature sensor include a non-contact type sensor such as a thermopile and a photoelectric crystal, or a contact type sensor such as a thermocouple.

The control unit 5 is configured to perform opening and closing control of each of the on-off valves 11 in accordance with the operation result of the operation unit, and stop control using the third valve 43 when the detection unit 45 detects a high temperature (predetermined temperature). Further, the opening and closing control includes a case where only one of the first opening and closing valve 21 and the second opening and closing valve 31 is driven, and both of the driving.

The opening and closing control is controlled by opening the first opening and closing valve 21 and the second opening and closing valve 31 with a predetermined opening amount (including a case where the opening amount of each of the opening and closing valves 11 is different and a case where only one of the opening and closing valves 11 is opened). , closed (including the case of closing both parties). The opening and closing control is controlled such that, by the opening or closing, the third flow path 4 flows out of the hot and cold water at a predetermined ratio of the hot and cold water and a predetermined amount of water, and stops the flow thereof.

Further, the opening and closing control is controlled such that when the opening and closing valve 11 is opened, the corresponding opening and closing valve 11 is opened in accordance with the opening amount of the set value. The set value is a value (opening amount) set at the time of manufacture, etc., corresponding to the set water temperature and the set flow rate in the operation result. Further, the opening and closing control includes a control for changing the opening amount of each of the on-off valves 11 (including only one of the cases and both cases) in accordance with the setting operation of the set water temperature and the set flow rate (operation result).

Therefore, the mixing faucet 1 is configured such that when the user operates the operation unit, the switching of the outflow and the outflow of the hot and cold water from the outflow portion (outflow port) 42 can be performed, and the water temperature can be changed and discharged. Change in the set flow rate in hot and cold water.

The stop control is a control for closing the third valve when the water temperature of the third flow path 4 is equal to or higher than a predetermined temperature when the outflow portion 42 is switched from the stopped state (water stop state) to the outflow state (when the flow is started). 43. Specifically, for example, when the detection unit 45 outputs a detection result equal to or higher than a predetermined temperature to the control unit 5, the mixing faucet 1 starts the outflow (after the start of the outflow), and stops the control by the third control unit. The valve 43 is closed to close the third flow path 4. In other words, the stop control is controlled such that when the hot water in the third flow path 4 is equal to or higher than a predetermined temperature, the third flow path 4 is closed, thereby prohibiting the outflow of the hot and cold water from the outflow portion 42 (so that the flow is started). It does not flow out).

In other words, when the detecting unit 45 detects a predetermined temperature or higher, the control unit 5 controls the third valve 43 to stop the flow of the hot and cold water from the outflow port 42 (so that it does not flow out). This control is called stop control.

Therefore, when the mixing faucet 1 starts to flow out, the outflow of the hot and cold water (high temperature water) at a high temperature can be suppressed. Thereby, the user can be prevented from being burnt or thermally stimulated (painful stimulation) due to high-temperature water.

Further, the mixing faucet 1 is configured to perform stop control only when the outflow starts. That is, the control is stopped, as shown in Fig. 3, the water temperature of the third flow path 4 (solid line L2 in Fig. 3) rises when flowing out, and the water temperature becomes a predetermined temperature from a predetermined temperature (Fig. 3) In the case of the dotted line L1), no application The third valve 43 is closed (not acting). In this manner, the stop control is controlled such that the third valve 43 is kept open when the operation is set to increase the water temperature to a predetermined temperature or higher.

In other words, when the third flow path 4 is switched from the stopped state to the outflow state, when the detecting unit 45 detects a predetermined temperature or higher, the flow of the hot and cold water from the outflow port 42 is stopped. In addition, when the temperature of the hot and cold water in the third flow path 4 rises and the detection unit 45 detects a predetermined temperature or higher, the flow of the hot and cold water from the outflow port 42 continues.

In addition, the mixing faucet 1 has a state in which the mixing ratio of the hot water and the cold water is different from the water supply pressure of the cold water, and the mixing ratio of the hot water and the hot water is inconsistent with the mixing ratio (design value) at the time of design. Does not correspond to the state of the set water temperature (water temperature), the situation of outflow. Therefore, the mixing faucet 1 of the present embodiment is configured such that the control unit 5 performs feedback control in accordance with the detection result of the detecting unit 45.

In the feedback control, for example, after the opening control of the opening amount of the set water temperature is performed, each of the on-off valves 11 is adjusted (including the closing) according to the detection result of the detecting unit 45 (in the case of only one of the cases and both cases) The amount of opening.

In other words, the control unit 5 performs feedback control to adjust the opening amount of the first opening and closing valve 21 and the second opening and closing valve 31 in accordance with the detected temperature of the detecting unit 45.

Hereinafter, for example, as shown in FIG. 4, the water temperature (solid line L3 in FIG. 4) flowing out of the hot and cold water is lower than the set water temperature (dashed line L4 in FIG. 4) (for example, 2 The flow control pressure of the flow path 3 is higher than the design value, and the flow rate of the cold water is more than the design value. For example, the feedback control is explained.

First, the mixing faucet 1 is opened by the opening control as described above so that the respective opening and closing valves 11 are opened at a predetermined opening amount (setting value). The control unit 5 starts the feedback control when the water flowing through the hot and cold water at a predetermined opening amount is in a steady state. This steady state means, for example, that the detected temperature (the detection result input from the detecting unit 45) is almost flat (the temperature is not changed) State) (for example, the first time point P1 in Fig. 4).

In the first time point P1, since the detected temperature is lower than the set water temperature, the control unit 5 increases the opening amount of the first opening/closing valve 21 or the opening of the second opening/closing valve 31 by feedback control. The on-off valve 11 is controlled in such a manner that the amount is reduced. Thereby, the temperature (detection temperature) of the hot and cold water in the third flow path 4 is increased.

When the detected temperature of the rise exceeds the set water temperature, the control unit 5 controls the amount of opening of the first opening and closing valve 21 or increases the amount of opening of the second opening and closing valve 31 by feedback control. Open and close the valve 11. Thereby, the detected temperature is lowered. Further, when the detected temperature of the fall is lower than the set water temperature, the control unit 5 increases the opening amount of the first opening/closing valve 21 or decreases the opening amount of the second opening/closing valve 31 by feedback control. In the manner, the on-off valve 11 is controlled. Thereby, the detected temperature is raised.

Further, the control unit 5 can control the two on-off valves 11 so as to adjust (change) the opening amounts of the two on-off valves 11 (both the first opening and closing valve 21 and the second opening and closing valve 31) by feedback control. By driving the first on-off valve 21 and the second on-off valve 31 as described above, the flow rate of the third flow path 4 can be prevented from fluctuating easily after the feedback control and before the feedback control.

In this way, when the water temperature is set to be different from the temperature (detection temperature) of the hot and cold water mixed by the mixing unit 41, the mixing faucet 1 is changed by adjusting the opening amount of each of the opening and closing valves 11 by the feedback control. The detected temperature is close to the set water temperature. In other words, the mixing faucet 1 can be controlled by feedback, so that the detected temperature becomes a state in which the set water temperature is almost flat (the water temperature of the third flow path 4 is stable in the set water temperature).

Therefore, the mixing faucet 1 can easily flow out the cold water and hot water of the set water temperature from the third flow path 4 (outflow portion 42). Thereby, the faucet 1 is mixed, and the influence of the difference in the water supply pressure such as the area and the living form is reduced, and the hot and cold water can be easily discharged at the water temperature (set water temperature) desired by the user. The mixing faucet 1 can maintain a slightly constant flow rate and discharge hot and cold water by adjusting (changing) the opening amount of the two opening and closing valves 11. Thereby, the mixing faucet 1 can flow out the desired flow rate (set flow rate) and set the hot and cold water of the water temperature, for example, when the desired flow rate is operated by the operation unit.

Further, the mixing faucet 1 has a configuration in which the same detection unit 45 (combined) is used for the stop control and the feedback control. In other words, the mixing faucet 1 is configured to be used for the feedback control for stopping control which is used when starting to flow out, and is used for feedback control during outflow. Therefore, the mixing faucet 1 suppresses an increase in the constituent members, and the feedback control can be performed with a simple configuration.

(Embodiment 2)

Next, the second embodiment will be described with reference to Figs. Incidentally, the same components as those in the above-described first embodiment are denoted by the same reference numerals, and the description thereof will be omitted, and the features and the like of the second embodiment will be described.

As shown in FIG. 5, the mixing faucet 1 of the present embodiment is provided with an electrolytic cell 6 between the third valve 43 and the outflow portion (outflow port) 42 of the third flow path 4. Therefore, the hot and cold water in the third flow path 4 is caused to flow through the electrolytic cell 6.

Specifically, for example, the electrolytic cell 6 has a box-shaped casing 61 as shown in FIG. 6 . The casing 61 has a first connecting portion 63 and a second connecting portion 64. The first connecting portion 63 is connected to the inside of the third flow path 4 on the third valve 43 side and the internal space (inside of the tank) of the electrolytic cell 6 . The second connection portion is connected to the internal space of the third flow path 4 and the electrolytic cell 6 on the side of the outflow portion 42. Therefore, in the electrolytic cell 6, the hot and cold water on the third valve 43 side of the third flow path 4 flows into the internal space through the first connecting portion 63, and the hot and cold water in the internal space flows from the second connecting portion 64 to the third flow path. The outflow portion 42 side (downstream side) of 4 flows out. The second connecting portion 64 is provided at a higher position than the first connecting portion 63.

Further, the electrolytic cell 6 includes at least two electrode members 65 and a power supply unit 66 that applies a voltage to each of the electrode members 65. The electrode member 65 is disposed in the internal space of the casing 61. The electrode members 65 are disposed at a predetermined interval from each other. The electrode member 65 is formed, for example, in a plate shape. The electrode member 65 has a plate surface. The electrode member 65 is disposed in a state in which the plate faces of the plates 65 face each other. Further, the electrode member 65 includes an end portion for electrical connection with the power supply portion 66, and the one end portion protrudes from the inner space toward the outer side of the casing 61.

The power supply unit 66 is disposed on the outer side of the casing 61. The power supply unit 66 is, for example, a direct current power source. The power supply unit 66 is electrically connected to the end portion of the electrode member 65 via a conductive member. The power supply unit 66 applies a voltage to the electrode member 65 such that one of the electrode members 65 serves as an anode and the other electrode member 65 serves as a cathode.

In the electrolytic cell 6, a part of the hot and cold water that has flowed in can be electrolyzed by applying a voltage to the electrode member 65. Thereafter, the electrolytic cell 6 simply generates oxygen bubbles on the anode side (the electrode member 65 side which becomes the anode) by this electrolysis. Therefore, the mixing faucet 1 allows the hot and cold water from the outflow portion 42 to flow out as oxygen-containing functional water. In the mixing faucet 1, the second connecting portion 64 is disposed above the first connecting portion 63, so that the gas generated by the electrolysis can easily flow to the downstream side (the side of the outflow portion 42). Further, the mixing faucet 1 may be provided with an input portion into which the additive is placed between the third valve 43 and the electrolytic cell 6, and the electrolysis of the hot and cold water may be promoted by the addition of the additive.

That is, the electrolytic cell 6 electrolyzes the hot and cold water, and uses the gas generated by the electrolysis to generate functional water. In the electrolytic cell 6, the functional water passes through the second connecting portion 64 and flows to the downstream side of the third flow path 4.

The mixing faucet 1 has a first mode in which the first functional water in which oxygen is dissolved and a second mode in which the second functional water in which oxygen is released as bubbles is discharged as an operation (mode) of discharging the functional water. Each mode is selected by the user by an operation of an operation unit (not shown). On the other hand, the mixing faucet 1 performs control by the control unit 5 to discharge the functional water in accordance with the mode selected.

Specifically, for example, when the first mode is selected, the control unit 5 performs control to reduce the opening amount of the first opening and closing valve 21 or increase the opening amount of the second opening and closing valve 31, thereby making the third flow The water temperature of the road 4 drops. The hot and cold water in the electrolytic cell 6 causes the oxygen to be easily dissolved due to the decrease in the temperature of the water. In other words, the hot and cold water in the electrolytic cell 6 is lowered by the temperature of the water, so that it becomes difficult to precipitate oxygen.

In other words, the mixing faucet 1 of the present embodiment is provided with the first mode in which the functional water (first functional water) flows out from the outflow port 42. When the first mode is selected, the control unit 5 controls either or both of the first on-off valve 21 and the second on-off valve 31 to lower the temperature of the hot and cold water.

Therefore, the mixing faucet 1 can be dissolved in the hot and cold water by flowing to the downstream side, for example, by flowing to the downstream side by the state in which the water temperature is lowered. In other words, the air bubbles in the hot and cold water can be made to flow toward the downstream side by lowering the temperature (water temperature) of the hot and cold water, for example, and the particle size tends to become smaller. Thereby, the mixing faucet 1 can flow out the first functional water (high oxygen concentration water) in which oxygen is dissolved.

For example, when the second mode is selected, the control unit 5 performs control to increase the opening amount of the first opening and closing valve 21 or reduce the opening amount of the second opening and closing valve 31, thereby making the water of the third flow path 4 The temperature rises. In the hot and cold water of the electrolytic cell 6, since the temperature of the water rises, the oxygen becomes difficult to dissolve. In other words, the hot and cold water in the electrolytic cell 6 causes the temperature of the water to rise, and the oxygen is easily precipitated.

In other words, the mixing faucet 1 of the present embodiment is provided with the second mode in which the functional water (second functional water) flows out from the outflow port 42. When the second mode is selected, the control unit 5 controls either or both of the first on-off valve 21 and the second on-off valve 31 to increase the temperature of the hot and cold water.

Therefore, the mixed faucet 1 can be made to have a state in which the temperature of the water rises, and the oxygen generated by the electrolysis of the electrolytic cell 6 can be easily distributed as a bubble in the hot and cold water, for example, as it flows to the downstream side. In other words, in the bubble of oxygen in the hot and cold water, for example, by increasing the temperature of the water, the bubble can flow toward the downstream side, and the particle size tends to become larger. Thereby, the mixing faucet 1 can flow out the second functional water (air bubbles mixed with water) which precipitates oxygen as a bubble.

In addition, the mixing faucet 1 is provided with a detecting unit 45 (second detecting unit 47) in the outflow unit 42 in addition to the detecting unit 45 for stopping control (the first detecting unit 46). The second detecting unit 47 detects the water temperature of the hot and cold water flowing out from the outflow portion (outflow port) 42 (more specifically, the temperature of the cold and hot water immediately before the outflow portion 42 flows out). Then, the control unit 5 performs feedback control using the detection result of the second detecting unit 47. Specifically, in the feedback control of the present example, for example, after the opening control is performed at the opening amount of the set water temperature, the respective opening and closing valves 11 are adjusted according to the detection result of the second detecting unit 47 (including only one of the cases and both sides). The control of the amount of opening (including the closing).

Therefore, the mixing faucet 1, for example, in a low-temperature environment, has a water temperature since the first In the case where the detection unit 46 is lowered from the outflow portion 42 and the like, it is possible to suppress the flow of the hot water from the outflow portion 42 to a temperature lower than the set water temperature. In other words, the mixing faucet 1 can be reduced from the influence of the water temperature of the third flow path 4, and the hot and cold water having the set water temperature can be easily flowed out from the outflow portion 42. Thereby, the faucet 1 is mixed, and the influence of the difference in the water supply pressure such as the area and the living form is reduced, and the hot and cold water can be easily discharged at the water temperature desired by the user.

As described above, the faucets 1 of the first and second embodiments have the following first features.

According to a first aspect, the faucet 1 includes a first flow path 2 connected to the hot water supply source, a second flow path 3 connected to the cold water supply source, and a third flow path 4. The third flow path 4 has a mixing portion 41 that mixes the first flow path 2 and the second flow path 3, and is in communication with the mixing unit 41. In the third flow path 4, an outflow port 42 is provided on the downstream side of the mixing portion 41. The first opening/closing valve 21 that can arbitrarily adjust the opening amount is provided in the first flow path 2. The second opening/closing valve 31 that can arbitrarily adjust the opening amount is provided in the second flow path 3. In the third flow path 4, on the downstream side of the mixing unit 41, a detecting unit 45 that detects the temperature of the cold and hot water in the third flow path 4 is provided. The faucet 1 further includes a control unit 5 that controls the opening amount of the first opening and closing valve 21 and the second opening and closing valve 31. The control unit 5 performs feedback control to adjust the amount of opening in accordance with the detected temperature of the detecting unit 45.

Further, the faucets of the first and second embodiments may have the following second to sixth features. Further, the second to sixth features are arbitrary features.

According to the second aspect, in the first feature, the control unit 5 performs the stop control of the stoppage of the flow of the hot and cold water from the outflow port 42 when the detection unit 45 detects a predetermined temperature or higher.

According to a third feature, in the second feature, when the third flow path 4 is switched from the stopped state to the outflow state, the detection unit 45 detects the hot or cold from the outflow port 42 when the detection unit 45 detects a predetermined temperature or higher. The outflow of water stops. Further, the stop control is such that when the temperature of the hot and cold water in the third flow path 4 rises and the detection unit 45 detects a predetermined temperature or higher, the flow of the hot and cold water from the outflow port 42 continues.

According to a fourth aspect, in any of the first to third features, the electrolytic cell 6 is provided in the third flow path 4. In the electrolytic cell 6, the hot and cold water is electrolyzed, and the gas generated by the electrolysis is dissolved in the hot and cold water to generate functional water. The outflow port 42 is provided on the downstream side of the electrolytic cell 6 in the third flow path 4. The faucet 1 is provided with a first mode in which the self-flow outlet 42 flows out of the functional water (the first functional water). When the first mode is selected, the control unit 5 controls either or both of the first on-off valve 21 and the second on-off valve 31 to lower the temperature of the hot and cold water.

According to a fifth aspect, in any of the first to third features, the electrolytic cell 6 is provided in the third flow path 4. The electrolytic cell 6 electrolyzes hot and cold water to produce functional water which precipitates a gas generated by the electrolysis as a bubble. The outflow port 42 is provided on the downstream side of the electrolytic cell 6 in the third flow path 4. The faucet 1 is provided with a second mode in which the self-flow outlet 42 flows out of the functional water (second functional water). When the second mode is selected, the control unit 5 controls either or both of the first on-off valve 21 and the second on-off valve 31 to increase the temperature of the hot and cold water.

According to a sixth feature, in any of the first to third features, the detecting portion 45 is provided in the outflow port 42.

Further, the present invention is not limited to the configurations of the first and second embodiments, and can be carried out by appropriately changing the scope within the scope of the invention.

(Embodiment 3)

Next, Embodiment 3 will be described with reference to Figs. 7 to 12 .

The background of the faucet 101 of this embodiment is created as follows. Japanese Patent Application Laid-Open No. 3138995 (hereinafter referred to as Document 2) discloses a water supply port assisting device. The water supply auxiliary device is a device for discharging hot water and cold water. The water supply port auxiliary device is provided with a nozzle for spraying high-temperature water at a central portion, and a hole for discharging cold water is disposed outside the nozzle. According to the above configuration, the water supply port auxiliary device can discharge the high-temperature water and the cold water without mixing.

However, in the water supply port auxiliary device of the document 2, in the flow path connecting the hot water outlet and the external hot water supply side of the water heater, the time passes and the external environment (temperature difference from the surrounding environment) causes residual The temperature of the hot water on this first-class road is reduced (hot water is cold). And the water supply auxiliary device, In the initial stage of the use of the hot water from the nozzles, the hot water is used, and the cold hand of the user who touches the hot water is given a cold feeling (a cold feeling is generated). In addition, in the water supply port auxiliary device of the document 2, in the case where both hot water and cold water are discharged (when using hot and cold water), the hand touches the hot and cold water, etc., in addition to the temperature sense of the hot water (temperature sense), due to cold water The temperature also gives a cold feeling to the cold water. In the initial stage of the use of the hot and cold water, the residual hot water flows out from the nozzle, so that the temperature of the hot water is more likely to cause a cold feeling.

The faucet 101 of the present embodiment is an invention proposed in view of the above problems. The faucet of the present embodiment is an invention created for the purpose of giving a cold feeling to a user when using hot and cold water or when using hot water.

The faucet 101 (cold hot water outflow device) of the present embodiment is installed above a water receiving portion (not shown) such as a sink of a kitchen cabinet or a basin of a washstand.

As shown in FIG. 8, the faucet 101 includes a first flow path 102 connected to an external hot water supply source 126, a second flow path 103 connected to an external cold water supply source 135, and a case portion 111 formed first. The outer casing on the downstream side of the flow path 102 and the second flow path 103. The outer casing portion 111 includes, for example, a base portion 113 provided on the top surface of the edge portion of the water containing portion, and an outlet pipe 114 provided at an upper portion of the base portion 113.

The base portion 113 is fixed to the top surface of the edge portion of the water receiving portion. In other words, the edge portion of the water receiving portion becomes the mounting table 109 on which the base portion 113 is attached. The outlet pipe 114 is formed in a U-shaped cylindrical shape facing downward. One end (first end 116) of the outlet pipe 114 is connected to the upper portion of the base 113. The end portion (second end 117) opposite to the first end 116 of the water outlet pipe 114 is disposed adjacent to the water containing portion.

Further, the outlet pipe 114 is provided with an outflow portion 112 and an operation portion 115 at the second end 117. The outflow portion 112 is provided at a downstream end of the first flow path 102 and a downstream end of the second flow path 103. Therefore, the faucet 101 is configured to flow hot water and cold water from the outflow portion 112. In other words, the downstream end of the first flow path 102 and the downstream end of the second flow path 103 are opened in the outflow portion 112.

The operation unit 115 is provided on the outer peripheral side of the outflow unit 112. The faucet 101 is configured to be borrowed by the user By operating the operation unit 115, the state in which only the cold water flows out from the outflow portion 112 and the state in which both the hot water and the cold water flow out from the outflow portion 112 are alternately switched. Hereinafter, the cross-sectional shape is a surface that is cut perpendicular to the flow direction (flow direction) of hot water or cold water unless otherwise specified.

The first flow path 102 is connected to the hot water supply source 126 on the upstream side thereof, and the hot water supply source 126 is, for example, a water heater. The hot water supply source 126 applies water pressure to the hot water. Thereby, hot water can be circulated in the first flow path 102. Therefore, the first flow path 102 is configured to flow out hot water from the water heater (the hot water supply path) from the downstream end (the first outflow port 121).

As shown in FIGS. 7 and 9, the first flow path 102 has a first portion 124 on the downstream side thereof. The first portion 124 is formed, for example, in a cylindrical shape. The first portion 124 protrudes upward from the mounting table 109. The first portion 124 is covered by the outer shell portion 111. On the first portion 124, an on-off valve (first valve 122) is provided. The first valve 122 is opened and closed in response to the operation of the operation unit 115. Therefore, the first flow path 102 switches between water passing and water stop depending on the opening and closing of the first valve 122. In the following, the first flow path 102 is placed on the upstream side (the portion disposed on the lower side of the mounting base 109) from the first portion 124, and is the third portion 125 (details will be described in detail later).

Further, the first portion 124 is provided with, for example, a rectifying plate (not shown) at the downstream end (the first outflow port 121). Therefore, the first outflow port 121 is configured to flow out water in a linear (columnar) shape having a circular cross section. That is, the first outflow port 121 continuously discharges hot water. Further, the first outflow port 121 is not limited to an outflow port provided with the rectifying plate if it can flow out in a line shape.

The upstream side end of the second flow path 103 is connected to the cold water supply source 135. The cold water supply source 135 is, for example, a water pipe. A cold water supply source that gives water pressure to cold water. Thereby, cold water can flow in the second flow path 103 toward the second flow outlet 131. Therefore, the second flow path 103 is configured to supply cold water from the water pipe from the downstream end (second flow port 131) (a cold water supply path).

As shown in FIGS. 7 and 9, the second flow path 103 has a second portion 134 on the downstream side thereof. The second portion 134 is formed, for example, in a cylindrical shape. The second portion 134 protrudes upward from the mounting table 109. The second portion 134 is covered by the outer shell portion 111. On the second portion 134, an on-off valve (second valve 132) is provided. 2nd The valve 132 is opened and closed in response to the operation of the operation unit 115. Therefore, the second flow path 103 switches between water passing and water stop depending on the opening and closing of the second valve 132.

In other words, the operation unit 115 can switch between the case where the hot water flows out from the first outlet port 102 and the cold water flows out from the second outlet port 131, and only the cold water flows out from the second outlet port 131 ( The case where the hot water is not discharged from the first outlet port 102).

Further, as shown in FIG. 7, the flow path of the downstream end portion (second end portion 133) of the second portion 134 and the flow path of the downstream end portion (first end portion 123) of the first portion 124 are shown. In comparison, the size is larger. On the other hand, the second end portion 133 has the first end portion 123 arranged concentrically on the inner peripheral side thereof. In other words, the second end portion 133 covers the outer periphery of the first end portion 123 around the first end portion 123.

Therefore, the second outflow port 131 is formed in a ring-shaped cross section on the outer peripheral side of the first outflow port 121. The wall on the inner peripheral side of the second outflow port 131 is the first end portion 123 of the first portion 124. In other words, the second flow path 103 has an annular second flow outlet 131 that surrounds the outer peripheral side of the first flow outlet 121. Therefore, the second flow path 103 can flow out from the second flow outlet 131 in a circular (cylindrical) shape in which the cold water has a circular cross section. As a result, in the case where both the hot water and the cold water are discharged, the outflow portion 112 flows out so that the cylindrical cold water covers the linear hot water. Further, the wall on the inner peripheral side of the second outflow port 131 (second end portion 133) is not limited to be formed by the first portion 124.

In other words, the second outflow port 131 has a tubular shape and is formed to surround the first outflow port 124.

Further, a treatment unit 104 that atomizes water is provided in the second outlet 131. The treatment unit 104 is configured by, for example, a water-spreading plate. The water-spreading plate has a plurality of hole flow paths 141, and water can flow out from the respective hole flow paths 141. As shown in FIG. 10, each hole flow path 141 has a third flow path 142 on the upstream side and a fourth flow path 143 on the downstream side. The third flow path 142 and the fourth flow path 143 are smoothly continuous.

The third flow path 142 has a cross-sectional shape that is slightly uniform in the flow direction of the water. The fourth flow path 143 is connected to the downstream end of the third flow path 142. The fourth flow path 143 is an enlarged portion that flows to the downstream and has a larger cross-sectional area of the flow path.

Therefore, the cold water of the second flow path 103 flows into the third flow path 142, and the flow rate increases due to an increase in pressure or the like. When the water having the increased flow rate (W1 in FIG. 10) flows into the fourth flow path 143, the interface is disturbed and atomized by the pressure drop or the like, and flows out from the downstream end of the fourth flow path 143 to the outside. In other words, in the second flow path 103, the water is atomized by the fluid shearing accompanying the pressure fluctuation of the processing unit 104, and is configured to flow out, for example, in a shower form.

That is, the inner diameter of the third flow path 142 is smaller than the inner diameter of the second flow path 103. As a result, when the hot and cold water flowing through the second flow path 103 flows into the third flow path 142, the flow velocity is increased. The inner diameter of the fourth flow path 143 is larger than the inner diameter of the third flow path 142. As a result, when the hot and cold water flowing through the third flow path 142 flows into the fourth flow path 143, the flow velocity decreases as the expansion increases. As a result, the hot and cold water in the fourth flow path 143 is fined by the shearing force.

In this manner, the faucet 101 independently includes the first flow path 102 and the second flow path 103. Therefore, the faucet 101 is different from the mixing faucet or the like which mixes the hot water and the cold water in the middle of the flow path, and is configured to flow out the hot water from the first outlet 121 and the outflow of the cold water from the second outlet 131. Implemented independently. In other words, the outflow portion 112 is provided with the first outflow port 121 and the second outflow port 131 independently.

The faucet 101 is provided with a second outlet 131 so as to surround the outer peripheral side of the first outlet 121. Therefore, as shown in FIG. 7, when the faucet 101 flows out both the hot water and the cold water toward the object 108, for example, if the hot water in the center contacts the contact surface of the object 108, it is easy to go to the outer periphery along the contact surface. Side diffusion means flow. In the faucet 101, when the cold water flowing on the circumferential side of the hot water contacts the contact surface, it is easy to mix with the hot water that has spread to the outer peripheral side, and to flow along the contact surface to the outer peripheral side.

When the hot water flows out from the first outlet 121 and the cold water flows out from the second outlet 131, the object 108 is exposed to the hot water and the cold water in the contact surface. The part (the part on the outer side of the part where only the hot water is easily contacted). In the case where the object 101 is a human hand, the faucet 101 is likely to generate a temperature sensation caused by hot water in a portion where the hot water is only easily contacted, and the hot water and the cold water are mixed in the outer peripheral side. Not easy Produce a cold feeling of cold water.

In addition, the faucet 101 is provided with the processing unit 104 in the second outflow port 131, and is configured to flow out the atomized water from the second outlet port 131. Therefore, the faucet 101 can increase (augment) the contact area (surface area) of the cold water with respect to the outside air (air) as compared with the case where the cold water flows out in a continuous line, so that the cold water can easily absorb the outside. The heat of the gas. In other words, the faucet 101 can easily contact the cold water flowing out to the outside air, and the temperature of the cold water flowing out from the second outlet 131 can be easily increased by the heat of the outside air. Thereby, the faucet 101 can make the temperature (water temperature) of the cold water close to the temperature of the outside air, and can make the object 108 less likely to generate cold feeling caused by cold water.

In addition, the faucet 101 has a configuration in which hot water flows out continuously from the first outlet port 121 in a single linear shape. Therefore, the faucet 101 can reduce (narrow) the contact area with respect to the outside air compared with the cold water from the second outflow port 131, and can suppress the heat diffusion of the hot water to the outside air. Thereby, the faucet 101 can simply cause the object 108 to generate a warm feeling of hot water.

Further, in the faucet 101, the second outlet 131 is formed in a cross-sectional shape that surrounds the outer peripheral side of the first outlet 121. Therefore, the faucet 101 can discharge the hot water and the cold water so that the cold water from the second outflow port 131 covers the outer peripheral side of the hot water from the first outlet 121 (in the outflow direction, the outer peripheral side of the axial core). . In this way, for example, when a part of the hot water is thermally diffused, the faucet 101 can easily absorb the heat from the cold water on the outer peripheral side, and can easily reduce the loss of the external heat of the hot water.

Further, when the faucet 101 stops the outflow of the hot water, the hot water remains in the first flow path 102 until the next hot water flows out. In the faucet 101, the hot water remaining in the first flow path 102 when the hot water flows out again after the hot water flows out, and the hot water of the hot water supply source 126 is set to the first outflow port 121 for a predetermined period of time. It flows out from the first outlet 121. Further, the residual hot water decreases as time passes. This temperature-reduced hot water is hereinafter referred to as water (remaining water). In addition, this water (remaining water) refers to water whose temperature is lower than that of hot water, and contains a liquid having a temperature higher than normal temperature.

Therefore, the faucet 101 has water (remaining water) that will be the first flow path 102 as shown in FIGS. 8 and 9 . The heating portion 171 is heated. Specifically, the first flow path 102 is provided with a bypass flow path at the third portion 125. Therefore, the third portion 125 is composed of the fifth flow path 105 and the bypass flow path (the sixth flow path 106).

The upstream end (the upstream end) of the fifth flow path 105 is connected to the hot water supply source 126. The downstream end (end portion on the downstream side) of the fifth flow path 105 is connected to the first portion 124. The upstream end (the upstream end) of the sixth flow path 106 is connected to the upstream side of the fifth flow path 105. The downstream end (end portion on the downstream side) of the sixth flow path 106 is connected to the downstream side of the fifth flow path 105. Therefore, the third portion 125 has a configuration in which the hot water of the fifth flow path 105 is mixed with the hot water of the sixth flow path 106 and flows into the first portion 124.

Further, a heater 107 that can heat the water (remaining water) (hot water in the sixth flow path 106) is provided in the sixth flow path 106. The heater 107 heats the water remaining in the sixth flow path 106 (remaining water) and the hot water flowing from the hot water supply source 126 into the sixth flow path 106. Then, the sixth flow path 106 merges the heated hot water with the hot water of the fifth flow path 105, so that the heater 107 heats it to heat the hot water which is a part of the first flow path 102. In other words, the heater 107 performs auxiliary heating as compared with the heating under the hot water supply source 126.

The heater 107 is disposed on the lower side of the mounting base 109. Therefore, the heater 107 can be disposed at a position where the appearance of the water-repellent portion is unobtrusive. Further, as shown in FIG. 11, the heater 107 includes, for example, a heating unit 171, a detecting unit 173, and a control unit 172.

The heating unit 171 is provided on the outer circumference of the sixth flow path 106. Specifically, the heating unit 171 is disposed in contact with the sixth flow path 106 . The heating unit 171 is provided so as to cover the entire circumference of the sixth flow path 106 (the entire direction of the circumferential direction of the axial core in the flow direction of the hot water). In addition, the heating unit 171 is configured to heat the hot water inside the hot water (the hot water of the sixth flow path 106), and is formed, for example, by an electric heating member that generates heat by electric power.

The heater 107 includes a first detecting unit 174, a second detecting unit 175, and a third detecting unit 176 as the detecting unit 173. The first detecting unit 174 detects the temperature (hot water temperature) of the hot water on the upstream side of the heating unit 171 of the first flow path 102. The second detecting unit 175 detects the relatively heated portion 171 of the first flow path 102 More hot water on the downstream side. The third detecting unit 176 detects the flow rate of the hot water in the first flow path 102.

The first detecting unit 174 is provided on the upstream side of the heating unit 171 of the sixth flow path 106, for example. The first detecting unit 174 detects the hot water temperature at a position on the upstream side of the heating unit 171. The second detecting unit 175 is provided on the downstream side of the heating unit 171 of the sixth flow path 106, for example. The second detecting unit 175 detects the hot water temperature at the position on the downstream side of the heating unit 171 of the sixth flow path 106. Therefore, the first detecting unit 174 and the second detecting unit 175 are temperature detecting units that detect the hot water temperature of the first flow path 102 (the sixth flow path 106).

The third detecting unit 176 is provided on the downstream side of the second detecting unit 175. The third detecting unit 176 is a detecting unit (outflow detecting unit) for detecting the presence or absence of hot water outflow (outflow and stop of the outflow) from the first outflow port 121.

Therefore, the heater 107 is configured as a detecting unit 173 including two temperature detecting units on the upstream side and the downstream side based on the position of the heating unit 171, and outflow detection for the first flow path 102. unit. Further, each of the detecting units 173 is configured to output a detection result to the control unit 172, for example. Thereby, the control unit 172 acquires each detection result from the detecting unit 173.

As shown in FIG. 12, the control unit 172 is configured to perform switching control of heating and stopping of the heating unit 171 in accordance with the detection result. The control unit 172 controls the heating of the heating unit 171 when hot water flows out (in the case where the hot water is discharged).

For example, when the detection result of the third detecting unit 176 is less than the predetermined value, the control unit 172 determines that there is no hot water outflow (the outflow operation of the hot water is not performed), and if it is equal to or greater than the predetermined value, it is determined that there is hot water. Flow out. The control unit 172 determines that the hot water has flowed out, and the detection result of the first detecting unit 174 (refer to the solid line L1 in FIG. 12) is less than the predetermined lower limit value (first value) (refer to FIG. 12). In the case of the broken line L2), the heating unit 171 is controlled to operate (heat generation). Further, the control unit 172 determines that the hot water has flowed out, and controls the heating unit 171 to stop when the detection result of the first detecting unit 174 is equal to or higher than the lower limit value (first value).

In other words, the detecting unit 173 includes the first detecting unit 174 provided on the upstream side of the heating unit 171, and the third detecting unit 176 detecting the presence or absence of the liquid in the first flow path 102. When the third detecting unit 176 detects that the liquid flows, and the first detecting unit 174 detects the hot water temperature that is less than the first value, the control unit 172 controls the heating unit 171 to perform heating. In addition, when the third detecting unit 176 detects that the liquid flows, and the first detecting unit 174 detects the hot water temperature of the first value or more, the control unit 172 controls the heating unit 171 to stop the heating.

Thereby, when the temperature of the water (remaining water) in the first flow path 102 is less than the first value, the water (remaining water) can be heated by the heating unit 171. Further, when the hot water flowing from the hot water supply source reaches the heating unit 171 after the heating of the water (remaining water) has started for a predetermined period of time, the heating unit 171 can be stopped.

Here, in the lower limit value, the temperature corresponding to the detection result is, for example, a temperature corresponding to a state in which a predetermined time (quantitative amount) elapses after the hot water heated by the hot water supply source 126 arrives, or The temperature at which the hot water starts to flow out is added to the temperature of the predetermined value.

In the operation of the heating unit 171, the detection result of the second detecting unit 175 (reference by the solid line L3 in FIG. 12) is equal to or greater than the upper limit value (reference by the broken line L4 in FIG. 12). Control stops the heating portion 171. In the operation of the heating unit 171, when the detection result of the second detecting unit 175 is less than the upper limit value, the control unit 172 controls the heating unit 171 to operate (heat generation).

Further, in response to the control of the heating unit 171 of the upper limit value, the detection result of the first detecting unit 174 is continued until the lower limit value or more. Further, the upper limit value is set such that the hot water temperature corresponding to the detection result of the value is a higher temperature than the hot water temperature corresponding to the detection result of the lower limit value.

In the upper limit, the temperature corresponding to the detection result is preferably set to, for example, from 25 ° C which exceeds the peak of the cold sensation (which becomes less likely to cause a cold sensation accompanying the temperature rise), and is prone to a contradiction. The previous range of 45 ° C.

Further, in the operation of the heating unit 171, the control unit 172 determines that no hot water has flowed out from the detection result of the third detecting unit 176 by the stop of the hot water discharge, and controls the heating unit 171 to stop.

In other words, the control unit 172 is configured to perform heating control of the heating unit 171 such that the hot water of the first flow path 102 is a predetermined temperature condition. In other words, the faucet 101 is subjected to feedback control using the detection result of the temperature detecting unit by the control unit 172, whereby the hot water flowing out from the first outlet 121 can be adjusted to have a predetermined temperature condition.

In the faucet 101, the heating unit 171 is provided in the sixth flow path 106 (the first flow path 102), and the hot water having a lowered temperature can be heated to increase the temperature and flow out from the first outlet port 121. As a result, when the faucet 101 flows out of the remaining hot water from the first outlet 121, the object 108 can be made less susceptible to the cold feeling caused by the hot water having the lowered temperature.

In the faucet 101, the control unit 172 including the detection unit 173 and the feedback control method for performing the heating unit 171 based on the detection result of the detection unit 173 can switch the heating unit 171 depending on the presence or absence of the hot water temperature and the outflow. Heating, and stopping of the heating. Therefore, the faucet 101 can suppress the power consumption by the heating unit 171 by stopping the heating unit 171, for example, when the hot water is at a temperature where the temperature is less likely to be generated or not.

Thereby, the faucet 101 reduces the power consumption by the heating unit 171, and the temperature of the hot water from the first outlet 121 can be easily generated. Further, in the faucet 101, the temperature condition (feedback control of the temperature) of the hot water heated by the heating unit 171 is the temperature range described above, and the hot water at the temperature at which the object 108 is most likely to be warmed can be discharged.

In addition, the first flow path 102 is provided with a heat insulating member (heat insulating portion 118) at a portion on the downstream side of the heating portion 171 of the first portion 124 and the third portion 125 (including the fifth flow path 105). The heat insulating member heats the portion on the downstream side and the external environment (the environment on the outer peripheral side) of the portion. In other words, the heat insulating member forms a heat insulating structure at the portion by covering the downstream portion. Further, in the downstream side portion, the heat insulating member provided in the first portion 124 covers the outer shell portion 111.

In this way, the faucet 101 has a heat insulating structure (heat insulating portion 118) at a portion on the downstream side of the heating portion 171 of the first flow path 102. Therefore, the first flow path 102 can suppress a temperature drop caused by the external environment of the downstream side portion. Thereby, in the faucet 101, in the portion on the downstream side, the temperature of the hot water heated by the heating unit 171 and the hot water from the hot water supply source 126 can be reduced.

In the faucet 101, the heat insulating structure can suppress the temperature of the hot water remaining on the downstream side from decreasing with time. Therefore, when the faucet 101 flows out of the hot water remaining in the downstream side from the first outlet port 121, the object 108 can be made less susceptible to the cold feeling caused by the hot water having the lowered temperature.

In addition, the faucet 101 may be disposed in the bathroom. In this case, the water receiving portion is, for example, a top surface of the rinsing place or a bath. In addition, the faucet 101 may be a branching unit that branches the flow path between the connected hot water supply source 126 and the first flow path 102, and mixes the hot water of the branch and the cold water from the cold water supply source 135. A faucet or the like on the upstream side of the flow path 103. In other words, the second flow path 103 may be different from the hot water of the first outflow port 121, and water (mixed water) mixed with hot water and cold water may flow out from the second water outlet 131. In the first flow path 102, the heating unit 171 may be provided in the fifth flow path 105 or the like without branching the third portion 125.

As described above, the faucet 101 of the third embodiment has the following first feature.

According to a first aspect, the faucet 101 includes a first flow path 102 connected to the hot water supply source 126 and a second flow path 103 connected to the cold water supply source. The first flow path 102 has a first outflow port 121. The second flow path 103 has a second outflow port 131. The faucet 101 includes an outflow portion 112. In the outflow portion 112, the first outflow port 121 and the second outflow port 131 are provided independently (that is, they are not shared). The processing unit 104 that granulates cold water is provided in the second outflow port 131.

As a result, the faucet 101 of the present embodiment can independently perform the outflow of the hot water from the first outlet 121 and the outflow of the cold water from the second outlet 131. Therefore, in the faucet 101 of the present embodiment, a portion where only hot water can be easily contacted can be formed on the contact surface of the object 108. Take this The faucet 101 of the embodiment can simply generate the temperature sensation caused by the hot water. In the faucet 101 of the present embodiment, the micro-cooled cold water can flow out from the second outlet 131 by the treatment unit 104, and the contact area (surface area) of the cold water with respect to the outside air (air) can be easily increased. Therefore, in the faucet 101 of the present embodiment, the cold water easily absorbs the heat of the outside air, and the temperature of the cold water flowing out from the second outlet 131 can be easily increased. As a result, in the faucet 101 of the present embodiment, the temperature (water temperature) of the cold water can be made close to the temperature of the outside air, and the object 108 can be less likely to generate cold feeling due to cold water.

Further, the faucet 101 of the feature 3 is selectively provided with the following second to ninth features. That is, the second to ninth features are arbitrary features.

According to a second feature, in the first feature, the faucet 101 is provided with a heating unit 171 that heats the hot water in the first flow path 102 in the first flow path 102.

By providing the heating unit 171 in the first flow path 102, the faucet 101 of the present embodiment can heat the hot water remaining in the first flow path 102 and having a lowered temperature. As a result, the water remaining in the first flow path 102 can flow out from the first outflow port 121 in a state where the temperature rises. As a result, when the faucet 101 of the present embodiment flows out residual hot water from the first outlet port 121, it is possible to prevent the object from being cooled by the hot water caused by the temperature drop.

According to a third feature, in the second feature, the faucet 101 includes the detecting unit 173 and the control unit 172. The detecting unit 173 detects the hot water temperature on the upstream side of the heating unit 171 of the first flow path 102. The control unit 172 performs switching control of heating of the heating unit 171 and stopping of the heating in accordance with the detection result of the detecting unit 173.

According to a fourth aspect, in the third aspect, the detecting unit 173 includes the first detecting unit 174 and the third detecting unit 176. The first detecting unit 174 is provided on the upstream side of the heating unit 171. The third detecting unit 176 detects the presence or absence of the flow of the liquid in the first flow path 102. When the third detecting unit 176 detects that the liquid flows, and the first detecting unit 173 detects the hot water temperature that is less than the first value, the control unit 172 controls the heating unit 171 to perform heating. Further, the control unit 172 detects the liquid flow by the third detecting unit 176. When the first detecting unit 173 detects the hot water temperature of the first value or more, the heating unit 171 is controlled to stop the heating.

According to a fifth aspect, in any one of the first to fourth features, the second outflow port 131 has a tubular shape and is formed to surround the first outflow port 121.

According to a sixth aspect, in any one of the first to fourth features, the first outflow port 121 is configured to flow out linear hot water.

According to a seventh aspect, in any of the first to fourth features, the operation unit 115 is further provided. The operation unit 115 switches between the case where both the first outflow port 121 and the second outflow port 131 flow out, and the case where only the second outflow port 131 flows out.

According to a eighth aspect, in any one of the second to fourth features, the heat insulating portion 118 is further provided. The heat insulating portion 118 heats the portion of the first flow path 102 that is further downstream than the heating portion 171.

According to a ninth aspect, in any one of the second to sixth features, the control unit 172 that performs the heating control of the heating unit 171 is further provided. The control unit 172 controls the heating unit 171 so that the temperature of the hot and cold water flowing out from the first outlet 121 is 25° C. or higher and 45° C. or lower.

In addition, the present invention is not limited to the configuration of the third embodiment, and can be carried out by appropriately changing the scope of the invention without departing from the scope of the invention.

(Embodiment 4)

Next, a fourth embodiment will be described with reference to Figs. 13A to 19 .

The background of the faucet 201 of this embodiment is created as follows. A conventional hand washing device is disclosed in Japanese Laid-Open Patent Publication No. SHO63-277023 (hereinafter referred to as Document 3). The hand washing device includes a warm air generating mechanism for generating warm air and a hand washing water supply mechanism for supplying hand washing water in a shower form. The hand washing device supplies the wind of the fan for blowing air to the heater and supplies it with the hand washing water. The hand washing water flowing out of the shower nozzle of the mechanism is mixed and discharged. The hand washing device, by discharging the heated wind and the hand washing water at the same time, does not easily give the user a cold feeling (cold feeling) caused by the hand washing water.

However, in the conventional hand washing device, when the heated wind and the hand washing water are discharged, the blower fan is actuated, so that it is difficult to reduce the power consumption.

The water discharge device of the present embodiment is an invention proposed in view of the above problems. The faucet 201 of the present embodiment is an invention which is created for the purpose of alleviating the cold feeling given to the user by the outflow of water and suppressing power consumption.

As shown in FIG. 14, the faucet 201 (water outlet device) of the present embodiment is installed above the water receiving portion 207 such as the sink of the kitchen cabinet or the basin of the washstand.

The faucet 201 includes a first flow path 202 that flows out of water 229 supplied from an external water supply source 240, a second flow path 203 that introduces external air and flows out as warm air 239, and a case portion 211 that forms the first The outer casing on the downstream side of the flow path 202 and the second flow path 203. The outer casing portion 211 includes, for example, a base portion 212 provided at an edge portion of the water containing portion 207 and an outlet pipe 213 provided at an upper portion of the base portion 212.

The base portion 212 is fixed to the top surface of the edge portion of the water containing portion 207. In other words, the edge portion of the water receiving portion 207 serves as a mounting base 271 to which the base portion 212 is attached. The outlet pipe 213 is formed in a U-shaped cylindrical shape facing downward. The outlet pipe 213 has one end (first end) of the U shape connected to the upper portion of the base portion 212. On the other hand, the outlet pipe 213 is disposed such that the other end (second end) of the U-shape is adjacent to the water-retaining portion 207.

Further, the water outlet pipe 213 is provided with an outflow portion 214 at the second end. The outflow portion 214 is provided with a downstream end of the first flow path 202 and a downstream end of the second flow path 203. Therefore, the faucet 201 is configured to flow out the water 229 and the warm air 239 from the outflow portion 214. In other words, the downstream end of the first flow path 202 and the downstream end of the second flow path 203 are opened at the outflow portion 214.

Further, the faucet 201 includes an operation unit (not shown). The faucet 201 is configured to flow out both the water 229 and the warm air 239 from the outflow portion 214 in response to the operation of the operation unit. Below, the profile The shape is a surface that is cut perpendicularly to the flow direction (flow direction) of the water 229 or the warm air 239 unless otherwise specified.

The first flow path 202 is connected to the water supply source 240 on the upstream side. This water supply source 240 is, for example, a water pipe. Therefore, the water 229 flows out from the water outlet (first outlet) 221 of the first flow path 202. In other words, the first flow path 202 is a water supply path. The first outlet 221 is provided at an end on the downstream side of the first flow path 202.

As shown in FIG. 13A, the first flow path 202 has a first portion 222 on the downstream side thereof. The first portion 222 is covered by the outer casing portion 211. The first portion 222 is formed, for example, in a cylindrical shape. The first portion 222 is provided with a rectifying plate (not shown) at its end (water outlet 221). Therefore, the first flow path 202 is configured such that the water 229 flows out from the water outlet 221 in a line shape (column shape) having a circular cross section along the flow direction. Further, the water outlet 221 is not limited to a water outlet provided with the rectifying plate if it can flow out in a line shape.

In addition, the end portion (first end portion 223) on the downstream side of the first portion 222 is formed in a shape that gradually narrows toward the downstream end and narrows toward the front end. In other words, the first end portion 223 has a first reduced diameter portion 224 whose flow path is narrower toward the downstream side, and a first small diameter portion 225 that is connected to the downstream end of the first reduced diameter portion 224. The cross-sectional shape of the first small-diameter portion 225 slightly coincides with the flow direction of the water 229. The diameter of the first small diameter portion 225 is slightly the same as the diameter of the downstream end of the first reduced diameter portion 224. The downstream end of the first small diameter portion 225 serves as a water outlet (first outlet) 221. In other words, the end portion of the first flow path 202 on the first flow outlet 221 side is formed in a shape that gradually narrows toward the distal end.

Therefore, the water outlet 221 is configured such that the flow velocity of the water 229 flowing out becomes faster than the flow velocity of the portion on the upstream side of the first reduced diameter portion 224 (the portion having a shape that gradually narrows toward the front end). In other words, the water outlet 221 is configured to accelerate the outflow of the water 229.

The second flow path 203 has an introduction port 231 for external air (air) on the upstream side thereof. The inlet 231 is disposed, for example, below the edge portion (mounting table 271) of the water receiving portion 207. The second flow path 203 is provided with a heating portion 233 on the downstream side of the introduction port 231. The heating unit 233 is disposed on the lower side of the mounting base 271. Therefore, the inlet port 231 and the heating portion 233 can be covered by the water receiving portion 27 Covered and placed in an inconspicuous position. Further, in the second flow path 203, a fan for circulating air is not provided.

The heating unit 233 heats the air introduced into the second flow path 203 from the introduction port 231. Therefore, in the second flow path 203, the warm air 239 flows out from the outflow port (second outflow port) 232. In other words, the second flow path 203 is an air supply path. Further, the heating unit 233 switches between heating of the air and stopping of the heating in response to the operation of the operation unit, for example.

The second flow path 203 has a second portion 234 on the downstream side thereof. The second portion 234 is formed, for example, in a cylindrical shape. The second portion 234 is covered by the outer shell portion 211. Further, the end portion (second end portion 235) on the downstream side of the second portion 234 has a larger flow path than the flow path of the first end portion 223. On the other hand, the second end portion 235 has the first end portion 223 arranged concentrically on the inner peripheral side thereof. In other words, the second end portion 235 is disposed so as to cover the outer periphery of the first end portion 223 around the first end portion 223. The outflow port 232 is located on the downstream side of the water outlet 221 .

Therefore, the outer periphery of the water outlet (first outlet) 221 is covered by the second end portion 235 of the second flow path 203. The second end portion 235 (the flow path) has a cross-sectional shape that surrounds the outer peripheral side of the water outlet 221 in the outer circumference of the water outlet 221, and the inner end side portion (wall) of the ring is the first end portion. 223 constitutes. In other words, the second flow path 203 has an annular second end portion 235 that surrounds the outer peripheral side of the water outlet 221 . In other words, the second outflow port 232 has a tubular shape and is formed to surround the first outflow port 221. Further, the wall on the inner circumferential side of the ring of the second end portion 235 is not limited to being formed by the first portion 222.

Further, the second end portion 235 has a shape that gradually narrows toward the front end as the flow path becomes narrower toward the downstream side. On the other hand, the diameter of the tip end (outflow port 232) of the second end portion 235 is larger than the diameter of the water outlet 221. In other words, the second end portion 235 has a second reduced diameter portion 236 whose flow path is narrower toward the downstream side, and a second small diameter portion 237 that is connected to the downstream end of the second reduced diameter portion 236.

The diameter of the downstream end of the second reduced diameter portion 236 is larger than the diameter of the first small diameter portion 225. The cross-sectional shape of the second small-diameter portion 237 slightly coincides with the flow direction of the water 229. The diameter of the second small diameter portion 237 is slightly the same as the diameter of the downstream end of the second reduced diameter portion 236. 2nd trail In the portion 237, the downstream end thereof becomes an outflow port (second outflow port) 232.

In this way, the faucet 201 is configured such that the first end portion 223 is disposed on the inner peripheral side of the second end portion 235, and the warm air 239 flows out from the outflow port 232 in a circular (cylindrical) shape having a circular cross section.

Therefore, the faucet 201 can flow out both the water 229 and the warm air 239 from the outflow portion 214 so that the tubular warm air 239 is covered with the linear water 229, and the object such as the user's hand can be easily increased by the warm air 239. The area of the object 208. Thereby, the faucet 201 can cause the user to easily generate the warm feeling of the warm air 239 (the temperature sensation generated by the warm air 239) as compared with the case where the warm air 239 and the inside of the water 229 are mixed, and the effluent can be easily alleviated. The resulting cold feeling of the user. On the other hand, since the faucet 201 heats air smaller than the heat and the hot water 229, the power consumption can be easily suppressed as compared with the case where the water 229 is heated.

Further, since the outflow port 232 (second outflow port) is located further downstream than the water outlet 221 (first outflow port), it is possible to merge the air 229 so that the warm air 239 surrounds the water 229. Therefore, the second end portion 235 is located at a position other than the outer circumference of the water outlet 221, and serves as a merging port for the warm air 239 and the water 229 to merge.

In addition, the faucet 201 has a shape in which the first end portion 223 is gradually narrowed toward the distal end, and a suction pressure (negative pressure) can be generated on the outer peripheral side of the water outlet 221, for example, at the time of water discharge. On the other hand, the faucet 201 has the outflow port 232 disposed close to the water outlet 221, and the air in the second flow path 203 is sent out by the suction pressure.

In other words, the second outflow port 232 is disposed adjacent to the first outflow port 221. Thereby, the warm air flows through the second flow path 203 by the action of the negative pressure generated by the water flowing out from the first water outlet 221 . Further, the first outflow port 221 and the second outflow port 232 are provided independently in the outflow portion 214.

Therefore, the faucet 201 can send the warm air 239 of the second flow path 203 in the water discharge direction (flow direction of the water 229) by the suction pressure. Thereby, even if the faucet 201 does not send the warm air 239 of the second flow path 203 by a fan or the like, the warm air 239 can flow out when the water is discharged, and the fan can be reduced. Consumption caused by electricity.

Further, for example, the faucet 201 sends the warm air 239 from the second flow path 203 by the suction pressure, so that the water 229 from the water outlet 221 can be made less susceptible to warm air than when the warm air 239 is sent by a fan or the like. The impact of the flow of 239.

Further, the faucet 201 has a shape in which the second end portion 235 is gradually narrowed toward the distal end, and for example, the suction pressure per unit area applied to the second flow path 203 can be easily increased, and the like. The wind 239 is simply sent out by the suction air pressure.

The faucet 201 has a shape in which the second end portion 235 is gradually narrowed toward the front end, so that the flow velocity of the warm air 239 flowing out can be made smaller than that of the second reduced diameter portion 236 (the shape gradually narrowed toward the front end). ) The flow rate on the upstream side is faster than that on the upstream side. In other words, the second flow path 203 is configured to accelerate the flow of the warm air 239. Therefore, the faucet 201 can easily reach the object 208 by suppressing the diffusion of the warm air 239 or the like, for example, and the temperature sensation caused by the warm air 239 can be easily generated.

(Embodiment 5)

The faucet 201 of the present embodiment has most of the same structure as the faucet of the fourth embodiment. Hereinafter, differences between the fourth embodiment and the fifth embodiment will be described.

The faucet 201 has a water discharge mode (first functional mode) in which both the outflow water 229 and the warm air 239 are both, and a warm air mode (second functional mode) in which only the warm air 239 flows out. The faucet 201 includes the operation unit (first operation unit) for discharging water in the water discharge mode and the second operation unit for discharging the warm air 239 in the warm air mode (details will be described in detail later).

In the second flow path 203, as shown in FIG. 15A, the blower unit 204 is provided. The blower unit 204 is disposed on the lower side of the mounting base 271. Therefore, the air blowing portion 204 can be shielded by the water containing portion 207 and disposed at a position where the appearance is not conspicuous. The air blowing unit 204 is disposed on the upstream side of the heating unit 233 of the second flow path 203. The air blowing unit 204 is configured to send air to the downstream side of the second flow path 203 by driving. The blower unit 204 is, for example, a blower fan (fan).

Further, the air blowing unit 204 is configured to operate only in the warm air mode. In other words, the air blowing unit 204 is configured to operate in the warm air mode and does not operate in the water discharge mode. Therefore, when the faucet 201 is in the water discharge mode, the warm air 239 is sent out from the outflow port 232 by the suction pressure generated by the water discharge, and the power consumption by the operation of the air blowing unit 204 is reduced.

The second operation unit is provided in the water outlet pipe 213. The second operation unit is configured by, for example, a detecting unit 205 that detects an object. As shown in FIGS. 16 and 17, the detecting unit 205 is provided at a side of the outflow portion 214.

As shown in FIG. 17, the detecting unit 205 has a detection area E1 on the side outside the outflow unit 214. The detecting unit 25 causes the detection result E1 (detection output) to be a predetermined value P2 by causing the object to be located in the detection area E1 as shown in FIGS. 18A and 18B. That is, the detection area E1 is a range in which the detection output becomes a predetermined value P2. In other words, the detecting unit 205 detects "the object is present" if the output value P1 becomes the predetermined value P2.

Therefore, the detecting unit 205 is a so-called limited reflection type non-contact sensor. Specifically, the detecting unit 205 is, for example, an infrared reflection type sensor that detects an object using infrared rays (light in the wavelength region of the infrared region), and is a so-called infrared sensor. Further, the infrared sensor includes a light-emitting portion 251 that emits infrared rays, and a light receiving portion 252 that receives a portion of the infrared rays reflected by the object in the infrared rays emitted from the light-emitting portion 251. Further, the object detected by the detecting unit 205 is, for example, a user's hand or the like.

As shown in FIGS. 18A and 18B, when the detection output (output value P1) of the predetermined value P2 or more is input from the detecting unit 205, the air blowing unit 204 operates. In other words, when the detecting unit 205 detects "the object is present", the air blowing portion 204 is activated (driven). When the air blowing unit 204 detects the object again by the detecting unit 205 or a certain period of time has elapsed since the air blowing, the operation is stopped.

In this manner, the faucet 201 is configured to start the operation of the warm air mode (second function mode) when the detecting unit 205 detects an object in the water discharge mode or the stopped state of the water discharge. In other words, if the faucet 201 detects the object by the detecting unit 205 in the water discharging mode or the stopped state, The heating of the air generated by the heating unit 233 and the delivery of the air generated by the air blowing unit 204 are started.

That is, the faucet 201 is provided with a detecting portion 205 for detecting an object. When the faucet 201 detects an object by the detecting unit 205, the second function mode is activated. In the second function mode, only the warm air flows out from the second outflow port 232 (the water does not flow out from the first outflow port 221).

Therefore, for example, the object 208 which is wetted in the water discharge mode can be dried by the warm air 239 in the warm air mode, and the convenience and the like can be improved. Further, in the faucet 201, the water 229 in the water discharge mode and the warm air 239 and the warm air 239 in the warm air mode flow out from the same outflow portion 214, so that the user can perform the washing in the water discharge mode with a slightly similar operation ( Wash your hands) and dry. The faucet 201, by making the detecting portion 205 a non-contact sensor, can start the operation in the warm air mode, for example, even if the hand is not wetted by the water 229 in the water discharge mode.

Further, in the second flow path 203, the second end portion 235 is gradually narrowed toward the tip end, whereby the warm air 239 can be accelerated to flow out. Therefore, the faucet 201 can easily accelerate the drying speed of the object 208 caused by the warm air 239 in the warm air mode. In other words, the faucet 201 is accelerated by the second portion 234 to cause the warm air 239 to flow out, and the drying of the object 208 caused by the warm air mode can be easily performed.

Further, the faucet 201 may be a faucet that discharges hot water from the first flow path 202 or hot and cold water mixed with hot water and cold water. In this case, for example, in the modification shown in FIG. 19, the mixing portion 226 that mixes the hot water and the cold water is provided on the upstream side of the first flow path 202 from the first portion 222. In the first flow path 202, the third portion 227 in which the cold water flows from the cold water supply source and the fourth portion 228 in which the hot water is supplied from an external water heater (not shown) is connected to the mixing unit 226.

In other words, the first flow path 202 has the first portion 222 on the downstream side of the mixing portion 226 and the third portion 227 and the fourth portion 228 on the upstream side of the mixing portion 226. The cold water of the third portion 227 and the hot water of the fourth portion 228 flow into the first portion 222 via the mixing portion 226. Therefore, the faucet 201 flows out of the water outlet 221 water 229 (cold hot water) which mixes the hot water and the cold water in the mixing portion 226. Thereby, the faucet 201 can be borrowed as compared with the case where only the water 229 from the water supply source flows out. The state in which the temperature of the water rises by the hot water causes the water to flow out, and the cold feeling caused by the water 229 can be easily alleviated.

Further, as shown in FIG. 19, the faucet 201 is preferably provided with a filter 238 at the introduction port 231. Further, the faucet 201 may be installed in a bathroom or the like. In this case, the water receiving portion 207 is, for example, a top surface of the rinsing place (top surface of the floor), a bathtub, or the like.

As described above, the faucets 201 of the fourth and fifth embodiments have the following first features.

According to a first aspect, the faucet 201 includes a first flow path 202 having a first outflow port 221 through which cold water flows out, and a second flow path 203 having a second outflow port 232 through which warm air flows. The end portion of the first flow path 202 on the side of the first outflow port 221 is formed into a shape that gradually narrows toward the tip end. The second outflow port 232 is disposed adjacent to the first outflow port 221, whereby the warm air flows through the second flow path 203 by the action of the negative pressure generated by the flow of the cold water from the first outlet port 221. .

In the faucet 201 of the present embodiment, the warm air of the second flow path 203 can be sent out in the water discharge direction (flow direction of water) by the suction pressure (negative pressure). Therefore, even if the faucet of the present embodiment does not send the warm air of the second flow path 203 by a fan or the like, the warm air can flow out when the water is discharged, and the power consumption by the fan or the like can be reduced. In the faucet of the present embodiment, the warm air is sent out from the second flow path 203 by the suction pressure, so that the cold water from the water outlet is less susceptible to the warm air than when the warm air is sent out by a fan or the like. The impact of the flow.

Further, the faucet 201 implementing the features 4 and 5 selectively has the following second to sixth features. That is, the second to sixth features are arbitrary features.

The second feature is that the first feature further includes an outflow portion 214. The first outflow port 221 and the second outflow port 232 are independently provided in the outflow portion 214.

According to a third aspect, in the first or second feature, the second outflow port 232 has a tubular shape and is formed to surround the first outflow port 221 .

According to the fourth feature, in the first feature, the end portion of the second flow path 203 on the second outflow port 232 side has a shape that gradually narrows toward the tip end.

According to a fifth aspect, the first feature mode and the second function mode are further included in the first feature. In the first functional mode, cold water flows out from the first outlet 221, and warm air flows out from the second outlet 232. In the second function mode, only the warm air flows out from the second outlet 232. The second flow path 203 is provided with a fan 204 that is driven when the second functional mode operates.

According to a sixth feature, the fifth feature further includes a detecting unit 205 that detects an object. When the detecting unit 205 detects an object, the second function mode is activated.

Further, the present invention is not limited to the fourth and fifth embodiments, and can be appropriately modified and implemented without departing from the scope of the invention.

1‧‧‧ mixed faucet

2‧‧‧1st flow path

3‧‧‧2nd flow path

4‧‧‧3rd flow path

5‧‧‧Control Department

11‧‧‧Opening valve

21‧‧‧1st on-off valve

22‧‧‧hot water supply

31‧‧‧2nd opening and closing valve

32‧‧‧ Cold water supply source

41‧‧‧Mixed Department

42‧‧‧Outflow section (outflow)

43‧‧‧3rd valve

45‧‧‧Detection Department

46‧‧‧1st detection department

Claims (21)

A faucet comprising: a first flow path connected to a hot water supply source; a second flow path connected to a cold water supply source; and a third flow path having a mixture of the first flow path and the second flow path a flow outlet is provided on the downstream side of the mixing portion, and is characterized in that a first opening and closing valve that can arbitrarily adjust the opening amount is provided in the first flow path, and a second opening that can be arbitrarily adjusted in the second flow path is provided An opening/closing valve; a detecting unit that detects a temperature of the cold and hot water in the third flow path is provided on the downstream side of the mixing portion; the faucet further includes a control unit that controls the first opening and closing valve The opening amount of the second opening and closing valve; the control unit performs feedback control to adjust the opening amount in accordance with the detected temperature of the detecting unit. The faucet of the first aspect of the invention, wherein the control unit performs the stop control of the outflow stop of the hot and cold water from the outlet when the detection unit detects a predetermined temperature or higher. The faucet of claim 2, wherein the stop control is performed when the third flow path is switched from the stopped state to the outflow state, and when the detecting unit detects the predetermined temperature or higher, the flow is from the flow The outflow of the hot and cold water at the outlet is stopped; in the outflow of the hot and cold water, the temperature of the hot and cold water in the third flow path rises, and when the detecting unit detects the predetermined temperature or higher, the hot and cold water from the outlet is made. The outflow continues. The faucet according to any one of claims 1 to 3, wherein the electrolytic channel is provided in the third flow path, and the hot and cold water is electrolyzed, so that the gas generated by the electrolysis is dissolved in the hot and cold water to generate functional water. The outlet is disposed on a downstream side of the electrolytic cell; the faucet is provided with a first mode in which the functional water flows out from the outlet; and when the first mode is selected, the control unit controls the first opening and closing valve and the first 2 Open or close one or both of the valves to lower the temperature of the hot and cold water. A faucet according to any one of claims 1 to 3, wherein Providing an electrolytic cell in the third flow path to electrolyze the hot and cold water to form a function water for the gas generated by the electrolysis as a bubble; the flow outlet is disposed on a downstream side of the electrolytic cell; the faucet is provided from the flow The second mode of the outlet water flows out; and when the second mode is selected, the control unit controls one or both of the first on-off valve and the second on-off valve to increase the temperature of the hot and cold water. The faucet according to any one of claims 1 to 3, wherein the detecting portion is provided at the outflow port. A faucet comprising: a first flow path connected to a hot water supply source; and a second flow path connected to a cold water supply source; wherein the first flow path has a first flow outlet; the second flow path has The second outlet; the faucet further includes an outflow portion; the first outlet and the second outlet are independently provided in the outlet; and the treatment portion for granulating the cold water is provided in the second outlet. The faucet of claim 7, wherein the heating unit is provided in the first flow path to heat the cold water in the first flow path. The faucet of claim 8, wherein the faucet further includes: a detecting unit that detects a temperature of the hot water in the first flow path on the upstream side of the heating unit; and a control unit according to the detection result of the detecting unit The heating by the heating unit and the stopping of the heating are switched. The faucet according to claim 9, wherein the detecting unit includes: a first detecting unit provided on an upstream side of the heating unit; and a third detecting unit that detects presence or absence of a liquid in the first flow path; The control unit performs control for detecting that the liquid is circulated by the third detecting unit and detecting that the liquid is not full by the first detecting unit The hot water temperature of the first value is controlled by the heating unit to perform heating; when the third detecting unit detects the liquid flow, and the first detecting unit detects the hot water temperature of the first value or more, the control is performed. The heating section stops heating. The faucet according to any one of claims 7 to 10, wherein the second outflow port has a cylindrical shape and is formed to surround the first outflow port. The faucet according to any one of claims 7 to 10, wherein the first outlet is configured to flow out linear hot water. The faucet according to any one of claims 7 to 10, further comprising an operation unit, switching from both the first outflow port and the second outflow port, and flowing out only from the second outflow port The situation. The faucet according to any one of claims 8 to 10, further comprising a heat insulating portion that insulates a portion of the first flow path that is further downstream than the heating portion. The faucet according to any one of claims 8 to 10, further comprising: a control unit that performs heating control of the heating unit; the control unit controls the heating unit to allow hot and cold water to flow out from the first outlet The temperature is 25 ° C or more and 45 ° C or less. A faucet comprising: a first flow path having a first outflow flowing out of cold water; and a second flow path having a second outflow flowing out of warm air; wherein the first flow of the first flow path is The end portion on the outlet side is formed in a shape that gradually narrows toward the distal end; the second outlet is disposed adjacent to the first outlet, whereby the cold water is discharged from the first outlet. The action of the pressure causes the warm air to circulate in the second flow path. The faucet of claim 16, wherein the faucet further includes an outflow portion, and the first outlet is independently provided from the second outlet. The faucet of claim 16 or 17, wherein the second outflow port has a cylindrical shape and is formed to surround the first outflow port. The faucet of claim 16, wherein the end of the second flow path on the second outflow side has a shape that gradually narrows toward the front end. For example, the faucet of claim 16 of the patent scope, wherein Further, in the first functional mode, the cold water flows out from the first outlet, and the warm air flows out from the second outlet; and in the second functional mode, only the warm air flows out from the second outlet; and the second flow The road is set to drive the fan when the second function mode operates. For example, in the faucet of claim 20, the detection unit for detecting an object is further provided; when the detecting unit detects an object, the second function mode is activated.