CN108869801A - Constant-temperature water mixing valve and water heater - Google Patents
Constant-temperature water mixing valve and water heater Download PDFInfo
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- CN108869801A CN108869801A CN201810619424.4A CN201810619424A CN108869801A CN 108869801 A CN108869801 A CN 108869801A CN 201810619424 A CN201810619424 A CN 201810619424A CN 108869801 A CN108869801 A CN 108869801A
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- mixing
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 481
- 230000000903 blocking effect Effects 0.000 claims description 14
- 238000006243 chemical reaction Methods 0.000 claims description 13
- 238000001514 detection method Methods 0.000 claims description 13
- 230000007246 mechanism Effects 0.000 claims description 7
- 238000004891 communication Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- 230000009471 action Effects 0.000 claims description 3
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000001360 synchronised effect Effects 0.000 claims description 2
- 239000000498 cooling water Substances 0.000 abstract 1
- 238000003287 bathing Methods 0.000 description 7
- 230000008859 change Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 206010053615 Thermal burn Diseases 0.000 description 2
- 238000009529 body temperature measurement Methods 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000002265 prevention Effects 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011112 process operation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 238000011897 real-time detection Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
- 239000000741 silica gel Substances 0.000 description 1
- 229910002027 silica gel Inorganic materials 0.000 description 1
- 239000008399 tap water Substances 0.000 description 1
- 235000020679 tap water Nutrition 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 230000007704 transition Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K11/00—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves
- F16K11/02—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit
- F16K11/08—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks
- F16K11/085—Multiple-way valves, e.g. mixing valves; Pipe fittings incorporating such valves with all movable sealing faces moving as one unit comprising only taps or cocks with cylindrical plug
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/02—Check valves with guided rigid valve members
- F16K15/025—Check valves with guided rigid valve members the valve being loaded by a spring
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24H—FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEAT-GENERATING MEANS, e.g. HEAT PUMPS, IN GENERAL
- F24H9/00—Details
- F24H9/20—Arrangement or mounting of control or safety devices
- F24H9/2007—Arrangement or mounting of control or safety devices for water heaters
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Multiple-Way Valves (AREA)
- Temperature-Responsive Valves (AREA)
Abstract
The present invention relates to field of water heaters, a kind of constant-temperature water mixing valve and water heater are disclosed.Constant-temperature water mixing valve includes valve body and spool, and valve body includes constant-temperature effluent mouth；Mixed water cavity has hot water valve port and cold water valve port and is connected to constant-temperature effluent mouth；Cold water cavity is connected to cold water valve port and has cold water inlet and cooling water outlet；Hot-water cavity is connected to hot water valve port and has hot water inlet, and spool can adjust the opening area of hot water valve port and/or the opening area of cold water valve port；The one-way non-return device that being provided in hot water circulation passage between hot water inlet and mixed water cavity allows hot water to be flowed into mixed water cavity passes and flows into mixing chamber only to allow hot water, it avoids cold water that hot water is forced to flow back from hot water inlet, improves the performance with water for providing the consumer with proper temperature.It is adjusted into cool water quantity and hot water amount in mixed water cavity simultaneously, so that hot and cold water is sufficiently mixed in advance in mixed water cavity, is then flowed out again from constant-temperature effluent mouth, so that provide the consumer with proper temperature uses water.
Description
Technical Field
The invention relates to the technical field of water heaters, in particular to a constant-temperature water mixing valve and a water heater.
Background
The existing consumers pay more and more attention to the quality of life, and the bathing experience of the consumers is influenced by the comfort level of the bathing living water, unstable water temperature and over-hot water temperature. At present, the domestic water heater is provided with a water mixing valve, such as a manual water mixing valve or a mechanical thermostatic valve, and a valve core can adjust the supply of hot water and cold water, so that the hot water and the cold water are mixed and then are supplied to consumers for use.
However, the manual mixing valve or the mechanical thermostatic valve used in the current water heater has the following disadvantages:
the manual water mixing valve manually controls the opening degree of cold water and hot water through the handle to enable the mixed water outlet temperature to reach the water temperature required by a consumer, but has the defects that the cold water and the hot water are directly mixed at the water outlet, the manual operation is not easy to control, the over-regulated water temperature is easy to overheat, and meanwhile, the water outlet temperature is frequently and manually adjusted along with the gradual reduction of the water outlet temperature of a water heater;
the mechanical thermostatic valve is internally provided with a temperature sensing valve core, a valve core ejector rod automatically expands and contracts through temperature change, and the stroke displacement drives the valve core to displace, so that the proportion of cold water and hot water is controlled, the mixed water outlet temperature reaches the temperature required by a consumer.
In addition, in practical use, the existing mixing valve has certain disadvantages, for example, in practical use, the water pressure of cold water and hot water may change, for example, if the pressure of the cold water is too high, cold water may enter into the hot water cavity, so that the hot water is forced to flow, which may cause a large amount of cold water to flow out from the constant temperature water outlet, thereby affecting the user's use feeling.
Disclosure of Invention
The invention aims to provide a thermostatic mixing valve which is simple in structure and can prevent cold water from forcing hot water to flow back from a hot water inlet, so that the performance of supplying water with proper temperature to consumers is improved.
In order to achieve the above object, the present invention provides a thermostatic mixing valve, including a valve body and a valve core, wherein: a constant temperature water outlet; the water mixing cavity is provided with a hot water valve port and a cold water valve port and is communicated with the constant-temperature water outlet; a cold water chamber in communication with the cold water valve port and having a cold water inlet and a cold water outlet; a hot water chamber in communication with the hot water valve port and having a hot water inlet; wherein the valve core can be movably arranged in the valve body, and the valve core can adjust the opening area of the hot water valve port and/or the opening area of the cold water valve port; and a one-way check device allowing hot water to flow into the water mixing cavity is arranged in a hot water circulation channel between the hot water inlet and the water mixing cavity.
Through above-mentioned technical scheme, because be provided with the one-way non return device that allows hot water to flow into the muddy water intracavity in the hot water circulation passageway between hot water entry and the muddy water chamber, like this, this one-way non return device can only allow hot water to pass through and flow into the hybrid chamber, and can avoid cold water to force hot water from hot water entry backward flow to the performance of providing the suitable water of temperature to the consumer has been promoted. Meanwhile, the opening area of the hot water valve port and/or the opening area of the cold water valve port are/is movably adjusted through the valve core, so that the amount of cold water and the amount of hot water entering the water mixing cavity are correspondingly adjusted, the cold water and the hot water are fully mixed in the water mixing cavity in advance, and then the cold water and the hot water flow out from the constant-temperature water outlet, so that water with appropriate temperature is provided for consumers, and the comfortable bathing requirement of the consumers is met.
Further, the one-way check device is disposed within the hot water chamber.
Still further, in one form, the one-way check device includes a front seat having an inflow port, a rear seat having an outflow port, a spring, and a check post, wherein the front seat and the rear seat are fixedly coupled and disposed within the hot water chamber, the check post is slidably disposed between the front seat and the rear seat, and the spring is coupled between the check post and the rear seat; the non-return column can seal or open the inflow port.
Further, an inner peripheral surface of the inflow port is formed as a tapered surface expanding toward the rear housing, and an elastic seal ring contactable with the tapered surface is provided on an outer peripheral surface of the check rod.
Optionally, in another form, the one-way check device is an elastic valve plate, wherein the elastic valve plate is fixedly connected to the inner surface of the hot water cavity to cover the hot water inlet and can be turned towards the inside of the hot water cavity under the action of hot water to open the hot water inlet.
In addition, a bent and extended water mixing channel is arranged between the water mixing cavity and the constant-temperature water outlet.
Furthermore, a water mixing sleeve is arranged in the valve body, and a water mixing cavity is formed inside the water mixing sleeve; the outer surface of the water mixing sleeve is provided with an annular water guide groove communicated with the constant-temperature water outlet, the bottom wall of the annular water guide groove is provided with a water guide opening communicating the water mixing cavity and the annular water guide groove, and the annular water guide groove is used as the curved and extended water mixing channel.
Further, the valve core is formed by a valve rod, wherein one end of the valve rod is in power transmission connection with a motor fixed on the valve body through a power conversion mechanism and can move axially, the other end of the valve rod extends into the water mixing cavity, and the other end of the valve rod is provided with a hot water valve port blocking part and a cold water valve port blocking part at intervals in the axial direction.
Further, the hot water port blocking portion and the cold water port blocking portion are supported on an inner surface of the water mixing sleeve.
In addition, the power conversion mechanism comprises a conversion piece which is synchronously and rotatably connected with an output shaft of the motor, wherein an internal thread is formed on one of the other end of the valve rod and the conversion piece, an external thread matched with the internal thread is formed on the other end of the valve rod, and a valve rod rotation preventing structure is arranged between the valve rod and the valve body.
In addition, the thermostatic mixing valve comprises a cold water sensor, a hot water sensor, a mixing water sensor and a flow detection unit which are connected with the control unit, wherein the cold water sensor is arranged on the wall of the cold water cavity and used for detecting the temperature of cold water in the cold water cavity; the hot water sensor is arranged on the wall of the hot water cavity and used for detecting the temperature of hot water in the hot water cavity; the mixed water sensor is arranged at the constant-temperature water outlet and is used for detecting the temperature of mixed water; the flow detection unit is arranged at the cold water outlet and used for detecting the inlet flow of cold water; the motor comprises a plug connector used for being connected with the control unit.
In addition, the invention provides a water heater, which comprises a water heater body with a cold water interface and a hot water interface and the constant-temperature water mixing valve, wherein the cold water outlet is connected with the cold water interface; the hot water inlet is connected with the hot water interface.
Therefore, as mentioned above, the water heater can meet the comfortable bathing requirement of consumers through the constant-temperature water mixing valve, and the overall quality of the water heater is improved.
Further, the water heater comprises a control display interface and a control unit, wherein under the condition that the constant-temperature water mixing valve comprises a cold water sensor, a hot water sensor, a water mixing sensor, a flow detection unit and a motor, the cold water sensor, the hot water sensor, the water mixing sensor, the flow detection unit and the motor are connected with the control unit.
Additional features and advantages of the invention will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
fig. 1 is a perspective view of a thermostatic mixing valve according to an embodiment of the present invention;
fig. 2 is a schematic sectional view of the thermostatic mixing valve of fig. 1;
FIG. 3 is an enlarged schematic view of a portion of the structure of FIG. 2;
fig. 4 is an enlarged schematic view of another partial structure of fig. 2.
Description of the reference numerals
1-a valve body, 2-a valve core, 3-a water mixing cavity, 4-a hot water valve port, 5-a cold water valve port, 6-a constant temperature water outlet, 7-a cold water cavity, 8-a cold water inlet, 9-a cold water outlet, 10-a hot water cavity, 11-a hot water inlet, 12-an inflow port, 13-a front seat body, 14-an outflow port, 15-a rear seat body, 16-a spring, 17-a check column, 18-a conical surface, 19-an elastic sealing ring, 20-a valve rod, 21-a motor, 22-a hot water valve port plugging part, 23-a cold water valve port plugging part, 24-a water mixing sleeve, 25-an annular water guide groove, 26-a water guide port, 27-a conversion part, 28-a cold water sensor, 29-a hot water sensor and 30-a water, 31-flow detection unit, 32-plug connector.
Detailed Description
The following detailed description of embodiments of the invention refers to the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present invention, are given by way of illustration and explanation only, not limitation.
Referring to the structures shown in fig. 1 and 2, the thermostatic mixing valve provided by the invention comprises a valve body 1 and a valve core 2, wherein:
a constant temperature water outlet 6;
the water mixing cavity 3 is provided with a hot water valve port 4 and a cold water valve port 5, and the water mixing cavity 3 is communicated with a constant temperature water outlet 6;
the cold water cavity 7 is communicated with the cold water valve port 5, and is provided with a cold water inlet 8 and a cold water outlet 9;
a hot water cavity 10, the hot water cavity 10 is communicated with the hot water valve port 4 and is provided with a hot water inlet 11;
wherein, the valve core 2 can be movably arranged in the valve body 1, and the valve core 2 can adjust the opening area of the hot water valve port 4 and/or the opening area of the cold water valve port 5; furthermore, a one-way check device allowing hot water to flow into the mixing cavity 3 is arranged in a hot water flow channel between the hot water inlet 11 and the mixing cavity 3.
In the technical scheme, the one-way check device allowing hot water to flow into the water mixing cavity 3 is arranged in the hot water flowing channel between the hot water inlet 11 and the water mixing cavity 3, so that the one-way check device only allows hot water to pass through and flow into the mixing cavity 3, cold water can be prevented from forcing the hot water to flow back from the hot water inlet 11, the cold water is effectively prevented from streaming, and the performance of providing water with proper temperature for consumers is improved. Meanwhile, the opening area of the hot water valve port 4 and/or the opening area of the cold water valve port 5 are/is movably adjusted through the valve core 2, so that the amount of cold water and the amount of hot water entering the water mixing cavity 3 are correspondingly adjusted, the cold water and the hot water are fully mixed in the water mixing cavity 3 in advance, and then the cold water and the hot water flow out from the constant-temperature water outlet 6, so that water with appropriate temperature is provided for consumers, and the comfortable bathing requirement of the consumers is met.
It should be understood that the valve core 2 can adjust the opening area of the hot water valve port 4 and/or the opening area of the cold water valve port 5 through various forms, for example, in one form, the valve core 2 can be rotatably disposed in the valve body 1, and through grooves corresponding to the hot water valve port 4 and the cold water valve port 5 are formed on the valve core 2, so that the valve core 2 can rotate in the water mixing chamber 3 to adjust the communication areas of the hot water valve port 4 and the cold water valve port 5 with the corresponding through grooves, thereby adjusting the amount of hot water and the amount of cold water entering the water mixing chamber 3.
Or, in another form, the hot water valve port 4 and the cold water valve port 5 are respectively provided with a respective valve core 2, so that the amount of hot water and the amount of cold water entering the mixing cavity 3 can be adjusted by adjusting the respective corresponding valve cores 2.
Alternatively, in another form, a structure as shown in fig. 2 and 4 may be adopted, and the valve core 2 may be realized by a valve rod and reciprocally slides in the valve body 1 to adjust the opening area of the hot water valve port 4 and/or the opening area of the cold water valve port 5 (which will be described in detail later).
Of course, the one-way check means may be provided at any suitable location, for example, it may be provided at the hot water inlet 11, or, as shown in fig. 2 and 3, the one-way check means may be provided in the hot water chamber 10. In this way, the inner space of the hot water chamber 10 can be fully utilized to conveniently install the one-way check device.
Of course, the one-way check device may have various forms, for example, in one form, as shown in fig. 2 and 3, the one-way check device includes a front seat body 13 having an inflow port 12, a rear seat body 15 having an outflow port 14, a spring 16, and a check post 17, wherein the front seat body 13 and the rear seat body 15 are fixedly coupled and disposed within the hot water chamber 10, the check post 17 is slidably disposed between the front seat body 13 and the rear seat body 15, and the spring 16 is coupled between the check post 17 and the rear seat body 15; the check column 17 can close or open the inflow opening 12. Thus, the hot water pushes the check post 17 open to open the inflow port 12 under the pressure of the hot water flowing from the hot water inlet 11, thereby allowing the hot water to enter the mixing chamber through the hot water valve port 4, and if the pressure of the hot water is not enough to push the check post 17 open, a suitable pressurizing means may be provided at the hot water inlet 11 to increase the pressure of the hot water. When the pressure of the cold water is too high, the check column 17 can block the inflow port 12 to prevent the cold water from passing through.
Further, as shown in fig. 3, in order to facilitate the check rod 17 to close or open the inflow port 12, it is preferable that an inner circumferential surface of the inflow port 12 is formed as a tapered surface 18 expanding toward the rear housing 15, and an elastic seal ring 19 capable of contacting the tapered surface 18 is provided on an outer circumferential surface of the check rod 17. Thus, when the check rod 17 blocks the inflow opening 12, the elastic sealing ring 19 and the tapered surface 18 form a gradual contact seal, and the gradual contact seal also facilitates the elastic sealing ring 19 to separate from the tapered surface 18 to open the inflow opening 12.
Or, in another form of the one-way check device, the one-way check device is an elastic valve sheet, wherein the elastic valve sheet is fixedly connected to the inner surface of the hot water cavity 10 to cover the hot water inlet 11 and can be turned towards the inside of the hot water cavity 10 under the action of hot water to open the hot water inlet 11. For example, the elastic valve sheet can be a high temperature resistant silica gel sheet.
In addition, the water mixing cavity 3 can be directly communicated with the constant-temperature water outlet 6 through an opening in the wall of the water mixing cavity, so that mixed water with appropriate temperature in the water mixing cavity 3 can rapidly and directly flow out of the constant-temperature water outlet 6.
Or, in order to further enhance the mixing effect of the cold water and the hot water to provide the outlet water with a more appropriate temperature, the thermostatic mixing valve provided by the invention is preferably provided with a curved and extended mixing channel between the mixing cavity 3 and the thermostatic outlet 6. Thus, the cold and hot mixed water in the water mixing cavity 3 flows through the curved and extended water mixing channel and then flows out of the constant temperature water outlet 6, and in the flowing process of the curved and extended water mixing channel, the cold and hot water are further mixed to improve the cold and hot water mixing effect.
In addition, the water mixing cavity 3 may be directly formed inside the valve body 1, or, in order to further enhance the water mixing effect, preferably, as shown in fig. 2 and 4, a water mixing sleeve 24 is arranged inside the valve body 1, and the water mixing cavity 3 is formed inside the water mixing sleeve 24; wherein, an annular water guide groove 25 communicated with the constant temperature water outlet 6 is formed on the outer surface of the water mixing sleeve 24, a water guide port 26 communicating the water mixing cavity 3 and the annular water guide groove 25 is formed on the bottom wall of the annular water guide groove 25, and the annular water guide groove 25 is used as a curved and extended water mixing channel. In this way, the hot and cold water is mixed in the water mixing chamber 3 and then enters the annular water guiding groove 25 through the water guiding opening 26, and the hot and cold water can be further mixed in the process of passing through the water guiding opening 26 and following the annular water guiding groove 25 and finally flows out from the constant temperature water outlet 6.
Of course, as described above, the valve element 2 can adjust the opening area of the hot water valve port 4 and/or the opening area of the cold water valve port 5 in various manners, for example, in the structural manner shown in fig. 2 and 4, the valve element 2 is formed by the valve rod 20, wherein one end of the valve rod 20 is connected with the motor 21 fixed on the valve body 1 through the power transmission mechanism and can move axially (that is, the motor 21 rotates forward and backward to drive the valve rod 20 to move axially and reciprocally), the other end of the valve rod 20 extends into the water mixing chamber 3, and the other end of the valve rod 20 is provided with the hot water valve port blocking portion 22 and the cold water valve port blocking portion 23 at intervals in the axial direction. In this way, the axial reciprocating movement of the valve rod 20 can drive the hot water valve port blocking portion 22 and the cold water valve port blocking portion 23 to adjust the opening degrees of the hot water valve port 4 and the cold water valve port 5, respectively, so as to adjust the amount of cold and hot water entering the water mixing cavity 3.
In addition, in order to improve the stability of the reciprocation of the stem 20 and to prevent the other end of the stem 20 from being suspended, it is preferable that the hot water port blocking portion 22 and the cold water port blocking portion 23 are supported on the inner surface of the mixing sleeve 24. Thus, the inner surface of the mixing sleeve 24 is fully utilized to support the valve stem 20, and additional support structures, such as support frames extending radially inward from the inner surface of the mixing sleeve 24, are avoided, thereby simplifying the internal structure of the mixing sleeve 24.
Of course, the power conversion mechanism may have various forms as long as it can convert the rotation of the motor into the axial movement. For example, as shown in fig. 2, the power conversion mechanism includes a conversion member 27 connected to the output shaft of the motor 21 in a synchronous rotation manner, wherein one of the other end of the valve stem 20 and the conversion member 27 is formed with an internal thread, the other is formed with an external thread engaged with the internal thread, and a valve stem rotation preventing structure is provided between the valve stem 20 and the valve body 1. Thus, the motor 21 rotates to drive the valve rod 20 to move axially through the screw-thread fit and the valve rod rotation-preventing structure.
Of course, the transition piece 27 may be a screw with an external thread as shown in fig. 2, or a nut with an internal thread.
In addition, in order to improve the convenience of the user and the accuracy of the mixing of the cold and hot water amounts, it is preferable that the thermostatic mixing valve, as shown in fig. 1, includes a cold water sensor 28, a hot water sensor 29, a mixing sensor 30 and a flow rate detection unit 31 for connecting with the control unit, wherein the cold water sensor 28 is disposed on the wall of the cold water chamber 7 for detecting the temperature of the cold water in the cold water chamber 7; a hot water sensor 29 is provided on a wall of the hot water chamber 10 for detecting the temperature of hot water in the hot water chamber 10; the mixed water sensor 30 is arranged at the constant-temperature water outlet 6 and is used for detecting the temperature of mixed water; the flow detection unit 31 is arranged at the cold water outlet 9 for detecting the cold water inlet flow; the motor 21 comprises a plug 32 for connection to a control unit.
Thus, after the constant-temperature water mixing valve is actually assembled, the cold water sensor 28, the hot water sensor 29, the water mixing sensor 30, the flow detection unit 31 and the motor 21 are connected with the control unit, in actual use, a user can set the water outlet temperature according to own needs, parameters can be calculated by the control unit according to specific control logic and a cold-hot water mixing ratio, the valve core, such as a valve rod, is driven by the motor to axially move to control the cold-hot water quantity entering a mixing cavity, the cold-hot water mixing ratio is automatically adjusted, the water outlet temperature can be controlled at the water temperature set by the user, constant-flow constant-temperature water outlet is carried out, water temperature fluctuation and high-temperature scald prevention can be effectively controlled, and the constant-temperature water mixing valve is simple to operate, accurate to control and; the motor drives the valve rod to move axially, and the control can be realized by detecting the set temperature, the actual outlet water temperature, the cold water temperature, the hot water temperature and the cold water flow in real time and controlling through program operation so as to achieve the output of constant and accurate outlet water temperature.
Further, the motor can be provided with a zero position limit switch to control the initial angle position of the motor, so that the rotation adjusting process is controlled more accurately. The control variable parameters are accurate temperature values fed back in real time by hot water testing, cold water temperature measurement and constant temperature water outlet temperature measurement, and the rotation amount of the motor can be finely adjusted step by step according to temperature change so as to achieve constant control of the water outlet temperature.
In addition, in order to facilitate the connection of the thermostatic mixing valve, the hot water inlet 11 is connected with a hot water movable joint, and the cold water outlet 9 is connected with a cold water movable joint, so as to facilitate the connection with a water heater, for example. The cold water inlet 8 can be connected with a tap water pipeline of a user, and the constant temperature water outlet 6 can be connected with a shower head or a water tap or other water outlet valve bodies in the home of the user.
Finally, the invention provides a water heater, which comprises a water heater body with a cold water interface and a hot water interface and the constant-temperature water mixing valve, wherein the cold water outlet 9 is connected with the cold water interface; the hot water inlet 11 is connected to a hot water port. Therefore, as mentioned above, the water heater can meet the comfortable bathing requirement of consumers through the constant-temperature water mixing valve, and the overall quality of the water heater is improved.
Further, in order to facilitate user control, the water heater includes a control display interface and a control unit, wherein, in the case that the thermostatic mixing valve includes the cold water sensor 28, the hot water sensor 29, the mixing sensor 30, the flow rate detection unit 31 and the motor, the cold water sensor 28, the hot water sensor 29, the mixing sensor 30, the flow rate detection unit 31 and the motor 21 are connected with the control unit.
Thus, a user can operate the control display interface to set the water outlet temperature according to the needs of the user, parameters can be calculated by the control unit according to specific control logics and a cold-hot water mixing ratio, the valve core such as a valve rod is driven by the motor to axially move to control the quantity of cold and hot water entering the mixing cavity, the cold-hot water mixing ratio is automatically adjusted, the rotation angle control of the motor 21 is controlled by the real-time detection of the set temperature, the actual water outlet temperature, the cold water temperature, the hot water temperature and the cold water inlet flow of the user, and then the process operation control is carried out, the rotation angle micro-control of the motor drives the valve core to move axially such as the valve rod to generate micro-displacement adjustment with a hot water valve port and a cold water valve port, so that the mixing ratio of the cold and hot water is changed, the water outlet temperature is constantly and accurately, the water temperature fluctuation and high-temperature scald prevention can be effectively controlled, the operation is simple, the control is accurate, the use is smooth, and for example, bathing experience of a user is better.
The preferred embodiments of the present invention have been described in detail with reference to the accompanying drawings, however, the present invention is not limited to the specific details of the above embodiments, and various simple modifications can be made to the technical solution of the present invention within the technical idea of the present invention, and these simple modifications are within the protective scope of the present invention.
It should be noted that the various features described in the above embodiments may be combined in any suitable manner without departing from the scope of the invention. The invention is not described in detail in order to avoid unnecessary repetition.
In addition, any combination of the various embodiments of the present invention is also possible, and the same should be considered as the disclosure of the present invention as long as it does not depart from the spirit of the present invention.
Claims (13)
1. The utility model provides a water valve is mixed to constant temperature which characterized in that, includes valve body (1) and case (2), be formed with in valve body (1):
a constant temperature water outlet (6);
the water mixing cavity (3) is provided with a hot water valve port (4) and a cold water valve port (5), and the water mixing cavity (3) is communicated with the constant-temperature water outlet (6);
a cold water chamber (7), the cold water chamber (7) being in communication with the cold water valve port (5) and having a cold water inlet (8) and a cold water outlet (9);
a hot water cavity (10), wherein the hot water cavity (10) is communicated with the hot water valve port (4) and is provided with a hot water inlet (11);
wherein the valve core (2) can be movably arranged in the valve body (1), and the valve core (2) can adjust the opening area of the hot water valve port (4) and/or the opening area of the cold water valve port (5); and a one-way check device allowing hot water to flow into the water mixing cavity (3) is arranged in a hot water flowing channel between the hot water inlet (11) and the water mixing cavity (3).
2. Thermostatic mixing valve according to claim 1 characterized in that the one-way non-return means are arranged inside the hot water chamber (10).
3. Thermostatic mixing valve according to claim 2 characterized in that the one-way non-return means comprises a front seat (13) with an inflow (12), a rear seat (15) with an outflow (14), a spring (16) and a non-return post (17) wherein,
the front seat body (13) and the rear seat body (15) are fixedly connected and arranged in the hot water cavity (10), the check column (17) is slidably arranged between the front seat body (13) and the rear seat body (15), and the spring (16) is connected between the check column (17) and the rear seat body (15);
the non-return column (17) can close or open the inflow opening (12).
4. The thermostatic mixing valve according to claim 3, characterized in that the inner peripheral surface of the inflow opening (12) is formed as a tapered surface (18) expanding toward the rear seat (15), and the outer peripheral surface of the check cylinder (17) is provided with an elastic sealing ring (19) capable of contacting the tapered surface (18).
5. The thermostatic mixing valve according to claim 2, characterized in that the one-way non-return means is a resilient flap, wherein the resilient flap is fixedly attached to the inner surface of the hot water chamber (10) and covers the hot water inlet (11) and can be flipped towards the inside of the hot water chamber (10) under the action of the hot water to open the hot water inlet (11).
6. The thermostatic mixing valve according to any of the claims 1 to 5, characterized in that a curved mixing channel is provided between the mixing chamber (3) and the thermostatic outlet (6).
7. The thermostatic mixing valve according to claim 6, characterized in that a water mixing sleeve (24) is arranged in the valve body (1), and the interior of the water mixing sleeve (24) forms the water mixing chamber (3);
wherein,
an annular water guide groove (25) communicated with the constant-temperature water outlet (6) is formed in the outer surface of the water mixing sleeve (24), a water guide opening (26) communicating the water mixing cavity (3) with the annular water guide groove (25) is formed in the bottom wall of the annular water guide groove (25), and the annular water guide groove (25) is used as the bent and extended water mixing channel.
8. The thermostatic mixing valve according to claim 7, characterized in that the valve core (2) is formed by a valve stem (20), wherein one end of the valve stem (20) is connected with a motor (21) fixed on the valve body (1) through a power conversion mechanism in a power transmission manner and can move axially, the other end of the valve stem (20) extends into the water mixing cavity (3), and the other end of the valve stem (20) is provided with a hot water valve port blocking part (22) and a cold water valve port blocking part (23) at intervals in the axial direction.
9. The thermostatic mixing valve according to claim 8, characterized in that the hot water port blocking portion (22) and the cold water port blocking portion (23) are supported on an inner surface of the mixing sleeve (24).
10. Thermostatic mixing valve according to claim 8 characterized in that the power conversion mechanism comprises a conversion member (27) in synchronous rotational connection with the output shaft of the motor (21) wherein,
one of the other end of the valve rod (20) and the conversion piece (27) is provided with an internal thread, the other end of the valve rod is provided with an external thread matched with the internal thread, and a valve rod anti-rotation structure is arranged between the valve rod (20) and the valve body (1).
11. Thermostatic mixing valve according to claim 1, characterized in that it comprises a cold water sensor (28), a hot water sensor (29), a mixing sensor (30) and a flow detection unit (31) for connection with a control unit, wherein,
the cold water sensor (28) is arranged on the wall of the cold water cavity (7) and used for detecting the temperature of cold water in the cold water cavity (7); the hot water sensor (29) is arranged on the wall of the hot water cavity (10) and used for detecting the temperature of the hot water in the hot water cavity (10); the mixed water sensor (30) is arranged at the constant-temperature water outlet (6) and is used for detecting the temperature of mixed water; the flow detection unit (31) is arranged at the cold water outlet (9) and used for detecting the inlet flow of cold water;
the motor (21) comprises a plug connector (32) used for being connected with the control unit.
12. A water heater, characterized by comprising a water heater body with a cold water port and a hot water port and a thermostatic mixing valve according to any one of claims 1-11,
the cold water outlet (9) is connected with the cold water interface;
the hot water inlet (11) is connected with the hot water interface.
13. The water heater of claim 12, including a control display interface and a control unit, wherein,
in case that the thermostatic mixing valve includes a cold water sensor (28), a hot water sensor (29), a mixing water sensor (30), and a flow rate detecting unit (31) and a motor,
the cold water sensor (28), the hot water sensor (29), the mixed water sensor (30), the flow detection unit (31) and the motor (21) are connected with the control unit.
Priority Applications (6)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619424.4A CN108869801A (en) | 2018-06-11 | 2018-06-11 | Constant-temperature water mixing valve and water heater |
| CN201910502000.4A CN110159803B (en) | 2018-06-11 | 2019-06-11 | Water heater |
| CN201910501447.XA CN110159800A (en) | 2018-06-11 | 2019-06-11 | Mixed water jacket, water mixing valve axis, water-mixing valve core, constant-temperature water mixing valve and water heater |
| CN201910501456.9A CN110159802A (en) | 2018-06-11 | 2019-06-11 | Trigger device, water mixing valve component, water mixing valve and water heater |
| CN202110908878.5A CN113464683B (en) | 2018-06-11 | 2019-06-11 | Thermostatic valve assembly and water heater |
| CN201910501452.0A CN110159801A (en) | 2018-06-11 | 2019-06-11 | On-off stream connector, water mixing valve and water heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810619424.4A CN108869801A (en) | 2018-06-11 | 2018-06-11 | Constant-temperature water mixing valve and water heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108869801A true CN108869801A (en) | 2018-11-23 |
Family
ID=64339053
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810619424.4A Pending CN108869801A (en) | 2018-06-11 | 2018-06-11 | Constant-temperature water mixing valve and water heater |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108869801A (en) |
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| CN109340393A (en) * | 2018-12-04 | 2019-02-15 | 吴建强 | A kind of flow control valve core |
| CN110145615A (en) * | 2019-05-09 | 2019-08-20 | 鹤山市凯信智造实业有限公司 | A kind of constant-temperature water valve |
| CN110159803A (en) * | 2018-06-11 | 2019-08-23 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN111811144A (en) * | 2020-06-15 | 2020-10-23 | 宋娟 | Water temperature presetting device of electric water heater |
| CN112344566A (en) * | 2019-08-09 | 2021-02-09 | 芜湖美的厨卫电器制造有限公司 | Constant temperature control assembly and water heater |
| CN112344078A (en) * | 2019-08-09 | 2021-02-09 | 芜湖美的厨卫电器制造有限公司 | Thermostatic valve, control method of thermostatic valve and water heater |
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| CN113464683A (en) * | 2018-06-11 | 2021-10-01 | 芜湖美的厨卫电器制造有限公司 | Thermostatic valve assembly and water heater |
| CN110159803A (en) * | 2018-06-11 | 2019-08-23 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN110159800A (en) * | 2018-06-11 | 2019-08-23 | 芜湖美的厨卫电器制造有限公司 | Mixed water jacket, water mixing valve axis, water-mixing valve core, constant-temperature water mixing valve and water heater |
| CN113464683B (en) * | 2018-06-11 | 2023-09-19 | 芜湖美的厨卫电器制造有限公司 | Thermostatic valve assembly and water heater |
| CN110159803B (en) * | 2018-06-11 | 2021-08-27 | 芜湖美的厨卫电器制造有限公司 | Water heater |
| CN109340393A (en) * | 2018-12-04 | 2019-02-15 | 吴建强 | A kind of flow control valve core |
| CN110145615B (en) * | 2019-05-09 | 2020-10-02 | 鹤山市凯信智造实业有限公司 | Constant temperature water valve |
| CN110145615A (en) * | 2019-05-09 | 2019-08-20 | 鹤山市凯信智造实业有限公司 | A kind of constant-temperature water valve |
| CN112344566A (en) * | 2019-08-09 | 2021-02-09 | 芜湖美的厨卫电器制造有限公司 | Constant temperature control assembly and water heater |
| CN112344078A (en) * | 2019-08-09 | 2021-02-09 | 芜湖美的厨卫电器制造有限公司 | Thermostatic valve, control method of thermostatic valve and water heater |
| CN112344566B (en) * | 2019-08-09 | 2024-11-12 | 芜湖美的厨卫电器制造有限公司 | Constant temperature control assembly and water heater |
| CN111811144B (en) * | 2020-06-15 | 2021-12-14 | 黄春美 | Water temperature presetting device of electric water heater |
| CN111811144A (en) * | 2020-06-15 | 2020-10-23 | 宋娟 | Water temperature presetting device of electric water heater |
| WO2024187839A1 (en) * | 2023-03-10 | 2024-09-19 | 广东格米莱智能科技有限公司 | Brewing device capable of manually adjusting temperature, and constant-temperature adjustment method |
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