KR100777434B1 - Hot water dispenser for adjusting temperature of water - Google Patents

Abstract

A water heater is provided to reduce the consumption of power and adjust the temperature of water supplied to a user accurately, by mixing two types of water having different temperatures to prepare mixed water having a temperature little lower than a target temperature and heating the mixed water to the target temperature. A water tank has a warm water tank(100) for storing warm water and a hot water tank(200) for storing hot water having a higher temperature than the warm water. A flow controlling unit(120) controls the flow of the mixed water of the warm water and the hot water supplied from the water tank. An instantly heating unit(600) heats the mixed water to a target temperature. An input unit(900) inputs the target temperature. A controller(800) controls the flow controlling unit so that the mixed water having a temperature lower than the target temperature by 1-10°C is supplied to the instantly heating unit.

Description

Hot water dispenser for adjusting temperature of water}

1 is a schematic diagram of a conventional cold and hot water purifier.

2 is a cross-sectional view of a temperature control flow valve for a conventional cold / hot water purifier.

3 is a schematic diagram showing an internal configuration of a water heater according to the present invention.

4 is a schematic diagram showing an internal configuration of a second embodiment of the water heater according to the present invention.

Fig. 5 is a schematic diagram showing the internal configuration of the third embodiment of the water heater according to the present invention.

<Description of the symbols for the main parts of the drawings>

100: room temperature water tank 110: room temperature water pipe

120: room temperature water flow control device 200: hot water tank

210: hot water pipe 220: hot water flow rate control device

300: cold water tank 310: cold water pipe

320: cold water flow rate control device 400: separate

500: outlet pipe 600: instantaneous heating device

610: air hole 700: heating flow rate control device

800 control unit 900 input unit

910: operation button 920: display window

The present invention relates to a water heater / cold / hot water heater configured to be able to adjust the outlet water temperature, and more particularly to a water heater / cold / hot water heater configured to supply to the user after mixing and heating two or more kinds of water having a different temperature.

There are various kinds of cold and hot water machines for supplying hot water and cold water, such as cold and hot water purifiers for purifying water and heating or cooling the water and supplying it to the user.

In a typical cold and hot water machine, cold water cooled to a predetermined temperature by an internal cooling device and a heating device, and cold water cooled to a predetermined temperature by an internal cooling device and a heating device are stored in a cold water tank and a hot water tank. It is designed to save. Outtakes are provided separately in the cold water tank and the hot water tank, and an intake valve is connected to each of the outlets of the cold water tank and the hot water tank. That is, the conventional cold and hot water dispenser has a structure in which hot water and cold water can be taken in through two intake valves. Therefore, the user using the cold and hot water heater having the structure described above had to mix the cold water and the hot water by operating the hot water intake valve and the cold water intake valve to receive water having a desired temperature.

However, such a conventional cold and hot water machine has to take cold water and hot water from each of the two valves, so that the user has to operate the intake valve two or more times in order to receive water of a desired temperature. In addition, when the intake valve for taking hot water operates only a lever without a separate safety device, hot water is discharged from the hot water tank to the hot water valve side, such that children may be burned in case of misuse.

In order to solve the above problems, by appropriately mixing the cold water and hot water, the user can extract the water of the desired temperature 'flow-controlled flow path valve and cold and hot water purification device using the same' (Korea Patent Publication No. 10-2004-0020269) Has been designed.

Hereinafter, a conventional cold / hot water purification device will be described in detail with reference to the accompanying drawings.

1 is a schematic view of a conventional cold and hot water purification device, Figure 2 is a cross-sectional view of the temperature control flow valve for the conventional cold and hot water purification device.

As shown in FIG. 1, the conventional cold / hot water purification device may easily intake cold water, room temperature water, hot water, and temperature-controlled uncooled water and lukewarm water by using a temperature control flow valve 50 and one intake valve 18. It is configured to be.

Referring to Figure 1, the water supply pipe 2 connected to the water supply is connected to the filter 1 for removing foreign matters. The filter 100 filters the water supplied from the tap water, filters harmful substances, etc., and sends the water to the reservoir 6 through the water supply pipe 4. The reservoir 6 is connected to a cold water tank 8 for cooling and storing the room temperature water supplied therefrom and a hot water tank 10 for heating and storing the room temperature water to a predetermined temperature. Although not shown in FIG. 1, a conventional cooling device is provided inside or around the cold water container 8, and a conventional heating device is provided inside or around the hot water container 10.

As shown in FIG. 2, when the user rotates the temperature control knob 26, the operation cam 36 installed on the temperature control plate 34 rotates to press the valve packing 40 assembled at one end of the valve pin 39. do. At this time, one or two valve pins 39 are selectively pressed by the operation cam 26 sequentially according to the rotation direction and angle of turning the temperature control knob 26. When the valve pins 39 are selectively pressed in this way, the valve packings 30 located at the inlets 18, 20, and 22 are selectively opened to allow water of different temperatures to be supplied from the inlets. Flows into (31). Water filled and introduced into the water mixer 31 is mixed in the interior and discharged to the drain 31 so that the temperature-controlled water can be taken out of the drain 31.

For example, when the actuating cam 36 is placed at the position of the cold water valve pin, cold water is discharged, and when the actuating cam 36 is positioned at the same time as pressing the valve pin of cold water and normal temperature water, the cold water and the normal temperature water are in the water mixer 31. It is mixed at and the cold water is discharged. The hot water, lukewarm water, and hot water withdrawal operation is also withdrawn according to the above operating principle.

The water supply pipes 12, 14, and 16 of the water reservoir 6, the cold water tank 8, and the hot water tank 10 are connected to a plurality of inlets formed in the temperature control channel valve 50 as described above. In addition, a water intake valve 18 is connected to the water outlet of the temperature control flow valve 50. The intake valve 18 is opened and closed by operation of the intake lever as usual.

Therefore, in the conventional cold and hot water purification device, when the tap water is supplied through the inlet pipe 2 connected to the tap water, the filter 1 filters the tap water to be supplied to remove the foreign matter and remove the clean water from the water tank 4 through the water supply pipe 4. ), And the water stored in the reservoir (6) is supplied to the room temperature inlet and the cold water reservoir of the temperature control flow valve (50), respectively.

The cold water tank 8 and the hot water tank 10 are each refrigerated and heated to a predetermined temperature of water supplied from the reservoir 6 to the cold water and the hot water inlet and hot water of the temperature control channel valve 50 Supply each to the inlet.

At this time, if the user selects the water of the desired temperature by adjusting the temperature control knob of the temperature control flow valve 50, the water temperature controlled by the normal temperature water, cold water, hot water and uncooled water and lukewarm water, etc. is taken in through the drain hole. It is supplied to the valve 18.

By opening and closing the valve of the intake valve 18 in the above state, it is possible to take in temperature-controlled water from the intake tap of the intake valve.

However, the conventional cold and hot water purification device configured as described above is configured so that the user adjusts the amount of cold water, room temperature water and hot water roughly so as to suit the temperature of the water to be discharged. There is no problem.

In addition, the conventional cold and hot water purification device does not know the temperature of the water mixed with cold water, room temperature, hot water accurately, there is a disadvantage that the user has to adjust to the desired temperature while drinking the water directly.

The present invention has been proposed to solve the above problems, and an object of the present invention is to provide a water heater / cold water heater configured to adjust the temperature of water accurately to a desired temperature.

The present invention as one aspect for achieving the above object,

A water tank for supplying water at different temperatures, having a normal temperature water tank for storing normal temperature water, and a hot water tank for storing hot water at a temperature higher than normal temperature water by heating by a heating means;

A flow rate controller for controlling the flow rates of water at different temperatures supplied from the water tank;

An instantaneous heating device for heating the water supplied through the adjusting device to a target water extraction temperature;

An input unit to input a target discharge temperature; And

A controller for controlling the flow rate adjusting device such that water having a temperature of 1 to 10 ° C. lower than the target water extraction temperature is supplied to the instantaneous heating device;

It provides a water heater comprising a.
In another aspect, the invention
A normal temperature water tank for storing normal temperature water, a hot water tank for storing hot water at a temperature higher than the normal temperature water by heating by a heating means, and a cold water tank for storing cold water at a temperature lower than the normal temperature water through cooling by the cooling means. A water tank for supplying water at different temperatures;
A flow rate controller for controlling the flow rates of water at different temperatures supplied from the water tank;
An instantaneous heating device for heating the water supplied through the adjusting device to a target water extraction temperature;
An input unit to input a target discharge temperature; And
A controller for controlling the flow rate adjusting device such that water having a temperature of 1 to 10 ° C. lower than the target water extraction temperature is supplied to the instantaneous heating device;
It provides a water heater characterized in that it comprises a.

The control unit,

The flow regulating device is controlled such that any one kind of water of two or more different temperatures in the water tank is supplied to the instantaneous heating device, or two or more kinds of water are mixed and supplied to the instantaneous heating device.

It is coupled between the water tank and the instantaneous heating device, further comprises a water temperature measuring means for measuring the temperature of each water supplied to the instantaneous heating device.

And a heating flow rate adjusting device for controlling a flow rate of water flowing into the instantaneous heating device or a flow rate of water flowing out of the instantaneous heating device.

The control unit,

The heating flow rate adjusting device is controlled such that the temperature of the water heated by the instantaneous heating device matches the temperature of the water input to the input unit.

The input unit,

It is configured to include an operation button and a display window for inputting and setting the desired exit water temperature.

The instantaneous heating device, the air hole is formed so that the steam of the water heated therein can be discharged to the outside.

delete

The room temperature water tank and the hot water tank are connected to a check valve that can be discharged from the room temperature water tank to the hot water tank.

An insulation member is provided between the room temperature water tank and the hot water tank.

Hereinafter, an embodiment of a water heater according to the present invention will be described in detail with reference to the accompanying drawings.
As used herein, the term 'water heater' includes not only a hot water dedicated device having a heating device but a cooling device, but also a cold and hot water device having a cooling device and a heating device at the same time.

3 is a schematic diagram showing an internal configuration of a water heater according to the present invention.

As shown in FIG. 3, the water heater according to the present invention includes a normal temperature water tank 100 for storing normal temperature water supplied through the water supply pipe 4, and a hot water tank for receiving water from the normal temperature water tank 100 and heating the water to store the water. 200, the cold water tank 300, which is separated into the normal temperature water tank 100 and the separate 400, and stores cold water, and receives water from each of the water tanks 100, 200, and 300, The instantaneous heating device 600 for instantaneously heating to a user desired temperature is configured. At this time, the normal temperature means water having a temperature of 10 to 25 ℃, hot water refers to hot water of 80 to 90 ℃, cold water means cold water of about 4 ℃. However, the temperature ranges of the room temperature water, the hot water, and the cold water are not limited thereto, and may be changed to any temperature provided that only the mutual temperature difference is set.

The room temperature water in the room temperature water tank 100 is transferred to the hot water tank 200 through the partition wall when the water surface is higher than the partition between the room temperature water tank 100 and the hot water tank 200, or with the room temperature water tank 100. The hot water tank 200 is transferred to the hot water tank 200 through a through hole (not shown) formed in the partition wall. In addition, the hot water tank 200 is configured to heat the room temperature water received from the room temperature water tank 100 so that the water filled therein becomes hot water.

In addition, if the instantaneous heating device 600 is configured in a sealed structure, the internal pressure is increased by water vapor generated in the process of heating the water, which may damage the instantaneous heating device 600, and the extracted flow rate This may fluctuate. Therefore, the instantaneous heating device 600 is preferably formed in the air hole so that the steam of the water heated therein can be discharged to the outside.

When water of too low temperature is supplied to the instantaneous heating device 600, a lot of power is required to heat up to the target water outlet temperature, and if water of a temperature higher than the target water outlet temperature is supplied, it is impossible to match the target water outlet temperature. The heating device 600 is configured to be supplied with water at a temperature slightly lower than the target discharge water temperature, preferably water at a temperature of 1 to 10 ° C. lower than the target discharge water temperature. Therefore, the hot water, hot water, and cold water in each of the water tanks 100, 200, and 300 are mixed at an appropriate ratio so that the water supplied to the instantaneous heating device 600 is slightly lower than the target discharge water temperature. 600).

In order to enable the mixing of the normal temperature water, hot water, and cold water as described above, the room temperature water pipe 110 for supplying the room temperature water in the room temperature water tank 100 to the instantaneous heating device 600 has a room temperature flow rate control device for controlling the flow rate of the room temperature water ( 120 is provided, the hot water pipe 210 for supplying hot water in the hot water tank 200 to the instantaneous heating device 600 is provided with a hot water flow rate adjusting device 220 for adjusting the flow rate of hot water, cold water tank The cold water pipe 310 for supplying the cold water in the 300 to the instantaneous heating device 600 is provided with a cold water flow rate adjusting device 320 for adjusting the flow rate of the cold water. At this time, each water tank (100, 200, 300) is preferably provided with a temperature sensing means for accurately measuring the temperature of the stored water.

In addition, the water heater according to the present invention, the input unit 900 for inputting a target discharge water temperature, and each of the flow rate control device (120, 220, 320) to mix at least two of the normal temperature water, hot water and cold water at an appropriate ratio It is configured to include a control unit 800 for controlling. The input unit 900 is configured to include an operation button 910 and a display window 920 for inputting and setting a desired discharge water temperature by the user, and the user manipulates the operation button 910 while looking at the display window 920. By doing this, the user can set the desired water temperature.

For example, when the room temperature water stored in the room temperature water tank 100 is 20 ° C., the hot water stored in the hot water tank 200 is 80 ° C., and the user has a target discharge temperature of 50 ° C. in the input unit 900, the controller 800 is a cold water flow path. The control unit 320 is closed, and only the normal temperature water flow passage adjusting device 120 and the hot water flow passage adjusting device 220 are mixed with each other by about half of normal temperature water and hot water, and then supplied to the instantaneous heating device 600. At this time, if the room temperature and hot water can be mixed in exactly the same amount, it is possible to minimize the power consumption because the temperature of the mixed water can be accurately adjusted to the target exit temperature 50 ℃ without using the instantaneous heating device (600). However, the temperature of the room temperature water and hot water may fluctuate little by little depending on various conditions, and an error may occur in adjusting the flow rate of the room temperature water and hot water, so the water mixed with the room temperature water and hot water may be less than 50 ° C or exceed 50 ° C. If the water mixed with the room temperature water and hot water is less than 50 ℃ can be precisely adjusted to the temperature of the water discharged by heating with the instantaneous heating device 600, but if the water mixed with room temperature water and hot water exceeds 50 ℃ Since the temperature of the water to be discharged must be lowered, there is a problem that it is difficult to accurately match the target discharge temperature.

Therefore, the controller 800 controls the hot water flow channel controller 120 and the hot water channel so that the mixed water of the normal temperature water and the hot water becomes a temperature lower than the target discharge temperature 50 ° C., that is, the flow rate of the normal temperature water is greater than the flow rate of the hot water. It is preferred to be configured to adjust the devices 220 respectively. At this time, if the water mixed with the room temperature water and hot water is set to be less than 1 ℃ below the target water output temperature, the temperature of the water mixed with the room temperature water and hot water may be higher than the target water temperature according to various variables. When set, the system consumes a lot of power to heat up to the target exit temperature. Therefore, the control unit 800 is a mixture of room temperature and hot water is 1 to 10 ℃ lower than the target water discharge temperature, preferably 4 to 5 ℃ lower so that the hot water flow channel controller 120 and the hot water channel controller 220 To control.

In addition, when any one of the room temperature water, hot water and cold water is 1 to 10 ℃ lower than the target water extraction temperature, the controller 800 does not mix the two or more water, the temperature is 1 to 1 than the target water extraction temperature of the normal and hot water and cold water Each flow control device (120, 220, 320) is controlled to supply only 10 ° C low water to the instantaneous heating device (600).

In this embodiment, the case in which three water tanks for storing water at different temperatures are described. However, the number of water tanks applied to the present invention is not limited thereto and may be configured as two or four or more water tanks.

At this time, the domestic water heater is preferably equipped with an instantaneous heating device 600 having a power consumption of less than 2.2 kW so that the total power consumption is not too large. Such instantaneous heating device 600 is maximum when extracting 1 liter of water per minute. Since the temperature rise is 30 ° C, if the amount of water flowing into the inside is too large, it takes a lot of time to heat the water to the temperature desired by the user. Therefore, the water heater according to the present invention is configured to further include a heating flow rate adjusting device 700 for adjusting the flow rate of water introduced into the instantaneous heating device (600). In addition, the heating flow rate control apparatus 700 may be configured to adjust the flow rate of the water flowing out to the outside so that the time that the inflow of water stays inside, that is, the time that the water introduced into the interior is heated. .

The controller 800 measures the temperature of the water heated in the instantaneous heating device 600 in real time, and the heating so that the water temperature inside the instantaneous heating device 600 matches the temperature input to the input unit 900. Control the flow regulator 700. For example, when the temperature of the water inside the instantaneous heating device 600 is much lower than the temperature input to the input unit 900, the controller 800 may reduce the amount of water flowing into or out of the instantaneous heating device 600. When the heating flow rate control device 700 is controlled, and the water temperature inside the instantaneous heating device 600 is about the same as the temperature input to the input unit 900, the controller 800 enters or exits the instantaneous heating device 600. The heating flow rate control device 700 is controlled to increase the amount of water.

4 is a schematic diagram showing an internal configuration of a second embodiment of the water heater according to the present invention.

The water heater according to the present invention changes the ratio of mixing the water stored in each water tank (100, 200, 300) according to the temperature of the water stored in each water tank (100, 200, 300), each water tank (100, 200) , Even if the temperature of the water stored in the 300 is accurately sensed in the process of transferring to the instantaneous heating device 600, that is, the temperature of the water in the process of passing the room temperature water pipe 110 and the hot water pipe 210 and the cold water pipe 310 As a result, the temperature of the water supplied to the instantaneous heating device 600 may be different from the calculated temperature.

Therefore, the water heater according to the present invention, as shown in Figure 4, the water temperature for measuring the temperature of the water supplied to the instantaneous heating device 600 between the water tank (100, 200, 300) and the instantaneous heating device 600 Measuring means 130, 230, 330 is provided.

In this embodiment, a water tank for storing water of different temperatures is divided into a room temperature water tank 100, a hot water tank 200 and a cold water tank 300, each of the water tank 110 and the hot water pipe ( Since 210 and the cold water pipe 310 are coupled to each other, the water temperature measuring means is also provided in the room temperature water pipe 110, the hot water pipe 210, and the cold water pipe 310, respectively. In addition, the water temperature measuring means may be provided between each of the water tanks (100, 200, 300) and each flow path control device (130, 230, 330), as shown in the embodiment shown in FIG. , 230 and 330 may be provided between the instantaneous heating device 600.

The controller 800 can more accurately sense the temperature immediately before mixing of the water supplied from each of the water tanks 100, 200, and 300 using the water temperature measuring means 130, 230, and 330. It is possible to more accurately control the temperature of the water supplied to 600).

Fig. 5 is a schematic diagram showing the internal configuration of the third embodiment of the water heater according to the present invention.

As shown in FIG. 5, the water heater according to the present invention may be configured to be connected to the room temperature water tank 100 and the hot water tank 200 by a check valve 410 capable of moving water contained therein. At this time, when the hot water in the hot water tank 200 is introduced into the room temperature water tank 100, the heating efficiency of the hot water tank 200 is reduced, the check valve 410 is a hot water tank in the room temperature water tank 100 Water 200 may flow, but it is preferable that water is not allowed to flow from the hot water tank 200 to the room temperature water tank 100.

In addition, when the room temperature water tank 100 and the hot water tank 200 are provided with one partition therebetween, the heat of the hot water is transferred to the room temperature water tank 100 so that the heating efficiency of the hot water tank 200 is also reduced. Will result. Therefore, it is preferable that a heat insulating member 420 is provided between the room temperature water tank 100 and the hot water tank 200.

As mentioned above, although this invention was demonstrated in detail using the preferable embodiment, the scope of the present invention is not limited to a specific embodiment, Comprising: It should be interpreted by the attached Claim. In addition, those skilled in the art should understand that many modifications and variations are possible without departing from the scope of the present invention.

By using the water heater according to the present invention, even if the user does not mix the cold water and hot water directly, the user can be supplied with the water of the desired temperature, and the water of the temperature slightly lower than the desired temperature by mixing the water of different temperatures After making, it heats up to the user's desired temperature, which not only reduces power consumption but also has the advantage of precisely adjusting the temperature of the water supplied to the user.

Claims (10)

A water tank for supplying water at different temperatures, having a normal temperature water tank for storing normal temperature water, and a hot water tank for storing hot water at a temperature higher than normal temperature water by heating by a heating means; A flow rate controller for controlling the flow rates of water at different temperatures supplied from the water tank; An instantaneous heating device for heating the water supplied through the adjusting device to a target water extraction temperature; An input unit to input a target discharge temperature; And A controller for controlling the flow rate adjusting device such that water having a temperature of 1 to 10 ° C. lower than the target water extraction temperature is supplied to the instantaneous heating device; Water heater, characterized in that comprising a. A normal temperature water tank for storing normal temperature water, a hot water tank for storing hot water at a temperature higher than the normal temperature water by heating by a heating means, and a cold water tank for storing cold water at a temperature lower than the normal temperature water through cooling by the cooling means. A water tank for supplying water at different temperatures; A flow rate controller for controlling the flow rates of water at different temperatures supplied from the water tank; An instantaneous heating device for heating the water supplied through the adjusting device to a target water extraction temperature; An input unit to input a target discharge temperature; And A controller for controlling the flow rate adjusting device such that water having a temperature of 1 to 10 ° C. lower than the target water extraction temperature is supplied to the instantaneous heating device; Water heater, characterized in that comprising a. The method according to claim 1 or 2, And a water temperature measuring means coupled between the water tank and the instantaneous heating device to measure the temperature of each water supplied to the instantaneous heating device. The method according to claim 1 or 2, And a heating flow rate adjusting device for adjusting a flow rate of water flowing into the instantaneous heating device or a flow rate of water flowing out of the instantaneous heating device. The method of claim 4, wherein The control unit, The water heater characterized in that for controlling the heating flow rate adjusting device so that the temperature of the water heated by the instantaneous heating device and the temperature of the water input to the input unit. The method according to claim 1 or 2, The input unit, Water heater characterized in that it comprises a control button and a display window for setting the input water output temperature desired by the user. The method according to claim 1 or 2, The instantaneous heating device, the water heater, characterized in that the air hole is formed so that the steam of the water heated inside can be discharged to the outside. The method according to claim 1 or 2, The control unit, Controlling the flow rate adjusting device such that any one kind of water of two or more different temperatures in the water tank is supplied to the instantaneous heating device, or two or more kinds of water are mixed and supplied to the instantaneous heating device. Water heater. The method according to claim 1 or 2, The hot water tank and the hot water tank is a hot water heater, characterized in that connected to the check valve that is allowed to flow out of the hot water tank to the hot water tank. The method according to claim 1 or 2, Water heater, characterized in that the insulating member is provided between the room temperature water tank and the hot water tank.

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