WO2017054440A1

WO2017054440A1 - Thermostatic water-discharging device, hot water system having same and control method therefor

Info

Publication number: WO2017054440A1
Application number: PCT/CN2016/080406
Authority: WO
Inventors: 孙仁祥; 曾云; 张晓晖; 全永兵
Original assignee: 芜湖美的厨卫电器制造有限公司
Priority date: 2015-09-29
Filing date: 2016-04-27
Publication date: 2017-04-06
Also published as: CN105318555A; CN205174849U

Abstract

Provided is a thermostatic water-discharging device (100), comprising: a thermostatic module (1) which can adjust the water intake ratio between cold water and hot water, wherein the thermostatic module (1) has a cold water inlet (11) for the module, a hot water inlet (12) for the module and a thermostatic water outlet (13) for the module; a changeover valve (2), wherein the changeover valve (2) has a thermostatic water outlet (23) for the valve, an drain port (22) for the valve and a thermostatic water inlet (21) for the valve that are in communication with one another and can be switched on or off separately, and the thermostatic water inlet (21) for the valve is connected to the thermostatic water outlet (13) for the module; and a temperature detector (3) for detecting water temperature inside the thermostatic module (1) or between the thermostatic module (1) and the changeover valve (2). Also provided is a hot water system having the thermostatic water-discharging device (100) and a control method for the thermostatic water-discharging device (100).

Description

Constant temperature water outlet device, hot water system therewith and control method thereof

Technical field

The invention relates to the technical field of water heaters, in particular to a constant temperature water outlet device, a hot water system having the constant temperature water outlet device and a control method of the constant temperature water outlet device.

Background technique

In the hot water system of the related art, the outlet water temperature cannot be achieved. For this reason, some hot water systems are provided with a thermostatic valve at the water outlet, but in use, it is necessary to manually adjust and release a lot of cold water, which is inconvenient to use and causes water resources. waste.

Summary of the invention

The present invention aims to solve at least one of the above technical problems in the related art to some extent. To this end, the present invention proposes a constant temperature water discharge device, which can realize constant temperature of water discharge, and is convenient to use, thereby avoiding waste of water resources.

The present invention also proposes a hot water system comprising the above-described thermostatic water discharge device.

The present invention also proposes a control method of the constant temperature water discharge device according to the above embodiment of the present invention.

The constant temperature water discharge device according to the embodiment of the present invention includes: a constant temperature module capable of adjusting a water inlet ratio of cold water and hot water, the constant temperature module having a module cold water inlet, a module hot water inlet, and a module constant temperature water outlet; a switching valve, The switching valve has a valve thermostatic water outlet, a valve drain port and a valve thermostatic water inlet which are connected to each other and can be respectively opened and closed, and the valve thermostatic water inlet is connected to the module constant temperature water outlet; for detecting the thermostat module or a temperature detector of the water temperature between the thermostat module and the switching valve.

According to the constant temperature water discharge device of the embodiment of the invention, the water inlet ratio of the cold water and the hot water is adjusted by the thermostat module, and the valve constant temperature water inlet of the switching valve is connected with the constant temperature water outlet of the module, and the temperature detector is used to detect the outflow from the module warm water outlet. The temperature of the water, when the temperature detected by the temperature detector reaches the set temperature, the valve constant temperature water inlet can be connected to the valve constant temperature water outlet to output hot water, and when the temperature detected by the temperature detector does not reach the set temperature, The valve constant temperature water outlet and the valve constant temperature water inlet are connected with the valve drain port, so that the water whose temperature has not reached the set temperature is discharged from the valve drain port, and the reuse is realized, thereby achieving the water outlet constant temperature, and the use is convenient, and the water resource is avoided. waste.

According to some embodiments of the invention, the thermostatic water discharge device further includes a controller integrated on the thermostat module and in communication with the thermostat module, the switching valve, and the temperature detector, respectively.

According to some embodiments of the present invention, the switching valve includes: a three-way pipe, the valve constant temperature water outlet, the valve constant temperature water inlet, and the valve drain port are respectively composed of three nozzles of the three-way pipe Three solenoid valves, three of which are respectively disposed at three nozzles of the three-way pipe and respectively control the switches of the three nozzles.

According to some embodiments of the invention, the module cold water inlet and the module hot water inlet are directed above the thermostatic module.

According to some embodiments of the invention, the valve drain port faces below the switching valve.

According to some embodiments of the present invention, the central axis of the module thermostatic water outlet, the central axis of the valve thermostatic water inlet, and the central axis of the valve thermostatic water outlet are both oriented in a horizontal direction and coincide with each other.

According to some embodiments of the invention, the temperature detector is disposed within the thermostat module.

According to some embodiments of the invention, the temperature detector is disposed between the module thermostatic water outlet, the valve thermostatic water inlet or the module thermostatic water outlet and the valve thermostatic water inlet.

According to some embodiments of the invention, the temperature detector is disposed in a conduit between the module thermostatic water outlet and the valve thermostatic water inlet.

Optionally, the temperature detector is disposed adjacent to the valve thermostatic water inlet.

According to some embodiments of the present invention, the constant temperature water discharge device further includes a casing, wherein the casing is provided with a casing cold water inlet, a casing hot water inlet, a casing constant water outlet, and a casing drain, the constant temperature a module, the switching valve, the temperature detector and the controller are all disposed in the housing, the module cold water inlet is in communication with the housing cold water inlet, the module hot water inlet and the housing The hot water inlet is in communication, and the valve constant temperature water outlet is in communication with the housing constant temperature water outlet, and the valve drain port is in communication with the housing drain port.

In addition, the present invention also discloses a hot water system, comprising: a water heater having a cold water inlet of a water heater; a constant temperature water outlet device, wherein the constant temperature water outlet device is a constant temperature water outlet device according to the above embodiment of the present invention, the module heat The water inlet is in communication with the hot water outlet of the water heater.

According to the hot water system of the embodiment of the present invention, the water temperature constant can be realized by providing the above-described constant temperature water discharge device.

In addition, the present invention also discloses a control method of the constant temperature water discharge device according to the above embodiment of the present invention, comprising: inputting a set temperature; adjusting the water inlet of the module and the water inlet of the module hot water inlet with the set temperature a ratio; reading a temperature detection value of the temperature detector; controlling a valve constant temperature water inlet and the valve drain port of the switching valve when a difference between the temperature detection value and the set temperature is greater than a predetermined value Opening and the valve constant temperature water outlet is closed; when the difference between the temperature detection value and the set temperature is less than or equal to the predetermined value, controlling a valve constant temperature water outlet and the valve drain of the switching valve The valve constant temperature water inlet is opened and the valve constant temperature water inlet and the valve constant temperature water outlet of the switching valve are opened and the valve drain port is closed.

According to the control method of the constant temperature water discharge device according to the embodiment of the present invention, the set temperature is first input to set the water inlet ratio of the cold water inlet and the module hot water inlet of the temperature adjustment module, and then the temperature detection value of the temperature detector is read, when the temperature is When the difference between the detected value and the set temperature is greater than the predetermined value, the valve constant temperature water inlet and the valve drain opening of the control switching valve are opened, and the valve constant temperature water outlet is closed, so that the temperature in the switching valve does not reach the set temperature of the water from the valve. Drain outlet, when temperature detection value When the difference from the set temperature is less than or equal to the predetermined value, the valve constant temperature water outlet and the valve drain opening of the control switching valve are opened, and the valve constant temperature water inlet is closed, and the water in the water discharge device such as the switching valve and the shower is discharged. After the predetermined time, the valve constant temperature water inlet and the valve constant temperature water outlet of the control switching valve are opened, and the valve drain port is closed to output hot water, so that the water temperature constant can be automatically adjusted.

Optionally, the predetermined value is 0-5 °C.

Optionally, the predetermined time is 3-8 seconds.

DRAWINGS

1 is a schematic structural view of a constant temperature water discharge device according to an embodiment of the present invention;

2 is a flow chart of a control method of a constant temperature water discharge device according to an embodiment of the present invention.

Reference mark:

100: thermostatic water discharge device;

1: thermostatic module;

11: module cold water inlet; 12: module hot water inlet; 13: module constant temperature water outlet;

2: switching valve; 20: tee pipe;

21: valve constant temperature water inlet; 22: valve drain port; 23: valve constant temperature water outlet;

3: temperature detector;

5: housing; 51: housing cold water inlet; 52: housing hot water inlet; 53: housing constant temperature water outlet; 54: housing drain.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals are used to refer to the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", " Orientation or position of indications such as "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", etc. The relationship is based on the orientation or positional relationship shown in the drawings, and is merely for the convenience of the description of the invention and the simplification of the description, and does not indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and thus It is not to be understood as limiting the invention.

Moreover, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" and "second" can be clearly indicated Or implicitly include one or more of the features. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. , or integrated; can be mechanical connection, or can be electrical connection; can be directly connected, or can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction of two elements. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

In the present invention, the first feature "on" or "under" the second feature may include direct contact of the first and second features, and may also include first and second features, unless otherwise specifically defined and defined. It is not in direct contact but through additional features between them. Moreover, the first feature "above", "above" and "above" the second feature includes the first feature directly above and above the second feature, or merely indicating that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature includes the first feature directly below and below the second feature, or merely the first feature level being less than the second feature.

A thermostatic water discharge device 100 according to an embodiment of the present invention will be described in detail below with reference to FIG.

As shown in FIG. 1, the thermostatic water discharge device 100 according to an embodiment of the present invention may include a thermostat module 1, a switching valve 2, and a temperature detector 3.

Specifically, the thermostat module 1 can adjust the entry ratio of cold water and hot water. As shown in FIG. 1 , the thermostat module 1 can have a module cold water inlet 11 , a module hot water inlet 12 , and a module constant temperature water outlet 13 , and the module cold water inlet 11 can be It is connected with the cold water source. The cold water can flow into the constant temperature module 1 through the module cold water inlet 11 , and the module hot water inlet 12 can communicate with the water outlet of the water heater. The hot water can flow into the thermostat module 1 through the module hot water inlet 12, and the thermostat module 1 regulates the cold water and The water inflow ratio of the hot water and the adjusted water are discharged from the module constant temperature water outlet 13.

The switching valve 2 may have a valve thermostatic water outlet 23, a valve drain port 22 and a valve thermostatic water inlet 21 which are open to each other and can be opened and closed, respectively, and the valve thermostatic water inlet 21 can be connected to the module thermostatic water outlet 13, wherein the valve thermostat water The outlet 23 can be connected with a water outlet such as a shower or a faucet to provide constant temperature water to the user, and the valve drain 22 can communicate with the water inlet or the water storage device of the water heater, thereby reducing waste of water resources and re-discharging the discharged water. use.

When the valve constant temperature water inlet 21 and the valve constant temperature water outlet 23 of the switching valve 2 are opened and the valve drain port 22 is closed, the water flowing out from the module constant temperature water outlet 13 of the thermostatic module 1 can pass through the valve constant temperature water inlet 21 and then from the valve constant temperature water. The outlet 23 is discharged to provide constant temperature water to the user; when the valve constant temperature water inlet 21 and the valve drain port 22 of the switching valve 2 are opened and the valve constant temperature water outlet 23 is closed, the water flowing out from the module constant temperature water outlet 13 of the thermostatic module 1 can pass through The valve constant temperature water inlet 21 is discharged from the valve drain port 22; and when the valve constant temperature water outlet 23 and the valve drain port 22 of the switching valve 2 are opened and the valve constant temperature water inlet 21 is closed, water at the water end such as a shower or a faucet can flow through The valve constant temperature water outlet 23 is discharged from the valve drain port 22.

The temperature detector 3 can be used to detect the water temperature in the thermostat module 1 or between the thermostat module 1 and the switching valve 2, providing a basis for subsequent control.

That is, the user can compare the water temperature signal flowing into the switching valve 2 detected by the temperature detector 3, and compare the detected water temperature with the set temperature to control the valve constant temperature water inlet 21 and the valve constant temperature water outlet 23 of the switching valve 2. And the valve drain 22 is opened or closed to achieve a constant water temperature.

A control method of the constant temperature water discharge device 100 according to an embodiment of the present invention is described below with reference to FIG. 2. As shown in FIG. 2, a control method of the constant temperature water discharge device 100 according to an embodiment of the present invention includes: inputting a set temperature; Adjusting the water inlet ratio of the module cold water inlet 11 and the module hot water inlet 12, so that the temperature in the thermostat module 1 approaches the set temperature; reading the temperature detection value of the temperature detector 3 to compare with the set temperature; When the difference between the detected value and the set temperature is greater than the predetermined value, the valve constant temperature water inlet 21 and the valve drain port 22 of the switching valve 2 may be opened and the valve constant temperature water outlet 23 is closed, so that the temperature of the thermostat module 1 is not reached. The water is discharged from the valve drain 22 after passing through the valve constant temperature water inlet 21.

The predetermined value may be a factory setting value or input by a user to implement subsequent control.

When the difference between the temperature detection value and the set temperature is less than or equal to the predetermined value, the valve constant temperature water outlet 23 and the valve drain port 22 of the switching valve 2 can be controlled to open and the valve constant temperature water inlet 21 is closed, and the shower head or the faucet is used at the water end. The water whose temperature has not reached the set temperature is discharged from the valve constant temperature water outlet 23 through the valve drain port 22, and after a predetermined time, after the water of the water terminal such as a shower or a faucet is drained, the valve constant temperature water inlet 21 of the switching valve 2 can be controlled. And the valve constant temperature water outlet 23 is opened and the valve drain port 22 is closed, so that the water reaching the set temperature flows out from the valve constant temperature water outlet 23, providing the user with constant temperature water, thereby not only realizing the water outlet constant temperature, but also having the advantages of convenient use and reliability. .

At the same time, since the valve drain 22 can be connected to the water inlet or the water storage device of the water heater, waste of water can also be reduced.

Further, when the change in the temperature of the hot and cold water, the pressure, or the like causes the temperature of the water in the thermostatic module 1 to change, the thermostat module 1 can automatically achieve the constant temperature, and further increase the thermostatic property of the water output from the thermostatic water discharge device 100.

Alternatively, the predetermined value may be 0-5 ° C, for example the predetermined value may be 2 ° C. The predetermined time may be 3-8 seconds, for example, the predetermined time may be 5 seconds.

For example, when the difference between the temperature detection value and the set temperature is greater than 2 ° C, the valve thermostatic water inlet 21 and the valve drain 22 of the switching valve 2 can be controlled to open, and the valve thermostatic water outlet 23 is closed, so that the thermostat module 1 and The water in the switching valve 2 whose temperature has not reached the set temperature is discharged from the valve drain port 22. When the difference between the temperature detection value and the set temperature is less than or equal to 2 ° C, the valve constant temperature water outlet 23 and the valve drain port 22 of the control switching valve 2 are opened, and the valve constant temperature water inlet 21 is closed, and the switching valve 2 and the shower are After the water in the water discharge device is discharged for 5 seconds, the valve constant temperature water inlet 21 and the valve constant temperature water outlet 23 of the control switching valve 2 are opened, and the valve drain port 22 is closed to output hot water to achieve extreme constant temperature.

According to the constant temperature water discharge device 100 of the embodiment of the invention, the water inlet ratio of the cold water and the hot water is adjusted by the thermostat module 1 For example, the valve constant temperature water inlet 21 of the switching valve 2 is connected to the module constant temperature water outlet 13, and the temperature of the water flowing out from the module constant temperature water outlet 13 is detected by the temperature detector 3, and the temperature detected by the temperature detector 3 reaches the setting. At the temperature, the valve constant temperature water inlet 21 and the valve constant temperature water outlet 23 may be connected to output hot water, and when the temperature detected by the temperature detector does not reach the set temperature, the valve constant temperature water outlet 23 and the valve constant temperature water inlet 21 may be The water is connected to the valve drain 22, so that the water whose temperature has not reached the set temperature is discharged from the valve drain 22 to be reused, so that the water temperature can be kept constant, and the use is convenient, and waste of water resources is avoided.

According to the control method of the constant temperature water discharge device 100 according to the embodiment of the present invention, the cold water in the water inlet pipe and the water outlet pipe can be discharged before the hot water supply, and the water temperature constant is automatically adjusted to improve the comfort of the hot water.

According to some embodiments of the present invention, the thermostatic water discharge device 100 may further include a controller (not shown) that may be integrated on the thermostat module 1 and may be coupled to the thermostat module 1, the switching valve 2, and the temperature detector 3, respectively. communication. The controller can receive the water temperature detected by the temperature detector 3, compare the water temperature detected by the temperature detector 3 with the set temperature, and the controller can control the valve constant temperature water inlet 21 and the valve constant temperature water of the switching valve 2 according to the comparison result. The outlet 23 and the valve drain 22 are opened or closed, and the controller can communicate with the thermostat module 1 to adjust the water inlet ratio of the cold water and the hot water to realize automatic switching, which is more convenient to use. Moreover, by integrating the controller on the thermostat module 1, the degree of integration of the thermostatic water discharge device 100 can be increased, and the volume of the thermostatic water discharge device 100 can be reduced to facilitate installation.

It should be noted that, during use, the user can input the set temperature in the controller as needed, thereby providing a comparison object for subsequent control work and achieving precise control.

As an alternative embodiment, as shown in FIG. 1, the switching valve 2 may include a tee 20 and three solenoid valves (not shown), wherein the valve thermostat water outlet 23, the valve thermostat water inlet 21, and the valve The drain ports 22 can be respectively formed by the three nozzles of the tee pipe 20, so that the structure of the switching valve 2 can be simple and compact, and the manufacturing process is simple and the cost is low. Three solenoid valves can be respectively disposed at the three nozzles of the three-way pipe 20, and three solenoid valves can respectively control the switches of the three nozzles. Thus, the user can conveniently control the valve constant temperature water inlet 21, the valve constant temperature water outlet 23, and the valve drain port 22 to open or close by controlling the opening or closing of the three solenoid valves, and the switching valve 2 can be made to react quickly and accurately.

According to some embodiments of the present invention, as shown in FIG. 1, the module cold water inlet 11 and the module hot water inlet 12 may face the upper side of the thermostatic module 1, so that the pipeline connection of the module cold water inlet 11 and the module hot water inlet 12 can be facilitated. And it is convenient for cold water and hot water to flow into the thermostat module 1.

In the embodiment shown in FIG. 1, the valve drain 22 can be directed downward of the switching valve 2, by setting the valve drain 22 below the switching valve 2, when the valve drain 22 of the switching valve 2 is open, The water can be made to flow downward by gravity, so that water in the water discharge device such as water and showers that have not reached the set temperature can be completely discharged from the valve drain port 22.

According to some embodiments of the present invention, as shown in FIG. 1, the central axis of the module thermostatic water outlet 13 and the valve thermostat Both the central axis of the water inlet 21 and the central axis of the valve thermostatic water outlet 23 may be oriented in a horizontal direction and coincide with each other. For example, in the example shown in FIG. 1, the module constant temperature water outlet 13, the valve constant temperature water inlet 21, and the valve constant temperature water outlet 23 are on the same horizontal line. Thereby, when water flows between the module constant temperature water outlet 13, the valve constant temperature water inlet 21, and the valve constant temperature water outlet 23, the fluctuation of the water temperature can be reduced, and the constant temperature performance of the constant temperature water discharge device 100 can be further improved. In addition, the piping connection of the thermostatic module 1 and the switching valve 2 can be facilitated.

In some embodiments of the invention, a temperature detector 3 may be provided within the thermostat module 1 to detect the temperature of the water within the thermostat module 1.

Alternatively, the temperature detector 3 may be disposed between the constant temperature water outlet 13 of the module, the valve constant temperature water inlet 21 or the module constant temperature water outlet 13 and the valve constant temperature water inlet 21, so that the temperature between the thermostat module 1 and the switching valve 2 can be detected. The water temperature provides a basis for control of subsequent control work.

Optionally, as shown in FIG. 1, the temperature detector 3 may be disposed in a pipeline between the module constant temperature water outlet 13 and the valve constant temperature water inlet 21, so that the water temperature detected by the temperature detector 3 approaches the switching valve 2 The true temperature of the water, which can improve the control accuracy of the controller and reduce the probability of controller malfunction.

In order to make the water temperature detected by the temperature detector 3 closer to the true temperature of the water entering the switching valve 2, the temperature detector 3 can be disposed adjacent to the valve constant temperature water inlet 21, whereby the detection accuracy of the temperature detector 3 can be further improved, The control precision of the controller is higher, which further ensures the constant temperature of the water.

According to some embodiments of the present invention, the thermostatic water discharge device 100 may further include a housing 5, as shown in FIG. 1, the housing 5 may be provided with a housing cold water inlet 51, a housing hot water inlet 52, and a housing constant temperature water outlet. 53 and the casing drain port 54, the thermostat module 1, the switching valve 2, the temperature detector 3, and the controller may be disposed in the casing 5, and the module cold water inlet 11 may be in communication with the casing cold water inlet 51, and the module hot water inlet 12 The valve hot water inlet 23 may be in communication with the housing constant temperature water outlet 23, and the valve drain port 22 may be in communication with the housing drain port 54. Thereby, components such as the thermostat module 1, the switching valve 2, the temperature detector 3, and the controller can be protected by the casing 5, thereby reducing the probability of damage, and the thermostatic water discharge device 100 can be integrated to facilitate installation and use. .

In summary, according to the constant temperature water discharge device 100 of the embodiment of the present invention, the water inlet ratio of the cold water and the hot water is adjusted by the thermostat module 1, and the valve constant temperature water inlet of the switching valve 2 is connected to the module constant temperature water outlet 13, and the temperature is utilized. The detector 3 detects the temperature of the water flowing out of the module constant temperature water outlet 13, and communicates with the thermostat module 1, the switching valve 2, and the temperature detector 3 by the controller, respectively, when the temperature detected by the temperature detector 3 does not reach the set temperature The controller controls the valve constant temperature water inlet 21 and the valve drain port 22 of the switching valve 2 to open, and closes the valve constant temperature water outlet 23, so that the temperature in the thermostatic module 1 and the switching valve 2 does not reach the set temperature of the water from the valve outlet 22 is discharged, and when the temperature detected by the temperature detector 3 reaches the set temperature, the controller first controls the valve constant temperature water outlet 23 and the valve drain port 22 of the switching valve 2 to open, closes the valve constant temperature water inlet 21, and switches the valve 2 and The water drain in the water outlet device such as the shower is turned on, and after a period of time, the valve constant temperature water inlet 21 and the valve constant temperature water outlet 23 of the switching valve 2 are opened, and the hot water is output, so that the water outlet temperature can be realized, and the use is convenient and avoidable. Free of waste of water resources.

In addition, the present invention also provides a hot water system comprising: a water heater and a thermostatic water discharge device. Wherein, the water heater may have a hot water outlet of the water heater, and the hot water heated by the water heater may be output from the hot water outlet of the water heater. The constant temperature water outlet device may be the constant temperature water outlet device 100 according to the above embodiment of the present invention, the module hot water inlet 12 may be connected with the hot water outlet of the water heater, and the hot water outputted from the hot water outlet of the water heater may enter the thermostat module 1 through the subsequent switching valve 2 After the device is installed, the water temperature can be adjusted.

According to the hot water system of the embodiment of the present invention, the outlet water temperature can be achieved by using the constant temperature water discharge device 100 according to the above embodiment of the present invention.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Further, various embodiments or examples described in this specification can be joined and combined by those skilled in the art.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to variations, modifications, substitutions and variations.

Claims

A constant temperature water outlet device, comprising:

a thermostatic module capable of adjusting a water inlet ratio of cold water and hot water, the thermostatic module having a module cold water inlet, a module hot water inlet, and a module constant temperature water outlet;

a switching valve having a valve thermostatic water outlet, a valve drain port and a valve thermostatic water inlet that are in communication with each other and that are respectively openable and closable, the valve thermostatic water inlet being connected to the modular constant temperature water outlet;

a temperature detector for detecting the temperature of the water in the thermostat module or between the thermostat module and the switching valve.
The constant temperature water discharge device according to claim 1, further comprising a controller integrated on the thermostat module and respectively communicating with the thermostat module, the switching valve and the temperature detector .
The constant temperature water discharge device according to any one of claims 1 to 2, wherein the switching valve comprises:

a three-way pipe, the valve constant temperature water outlet, the valve constant temperature water inlet and the valve drain port are respectively constituted by three nozzles of the three-way pipe;

Three solenoid valves, three of which are respectively disposed at three nozzles of the three-way pipe and respectively control the switches of the three nozzles.
The constant temperature water discharge device according to any one of claims 1 to 3, wherein the module cold water inlet and the module hot water inlet are directed above the thermostatic module.
The constant temperature water discharge device according to any one of claims 1 to 4, wherein the valve drain port faces downward of the switching valve.
The constant temperature water discharge device according to any one of claims 1 to 5, wherein a central axis of the module constant temperature water outlet, a central axis of the valve constant temperature water inlet, and a central axis of the valve constant temperature water outlet Both are oriented in the horizontal direction and coincide with each other.
The constant temperature water discharge device according to any one of claims 1 to 6, wherein the temperature detector is provided in the thermostatic module.
The constant temperature water discharge device according to any one of claims 1 to 7, wherein the temperature detector is provided at the module constant temperature water outlet, the valve constant temperature water inlet or the module constant temperature water outlet. Between the valve and the constant temperature water inlet.
The constant temperature water discharge device according to claim 8, wherein said temperature detector is provided in a line between said module constant temperature water outlet and said valve constant temperature water inlet.
The constant temperature water discharge device according to claim 9, wherein said temperature detector is disposed adjacent to said valve constant temperature water inlet.
The constant temperature water discharge device according to any one of claims 1 to 10, further comprising a housing The housing is provided with a casing cold water inlet, a casing hot water inlet, a casing constant temperature water outlet and a casing drain port, and the thermostat module, the switching valve, the temperature detector and the controller are both provided In the housing, the module cold water inlet is in communication with the housing cold water inlet, the module hot water inlet is in communication with the housing hot water inlet, the valve constant temperature water outlet and the housing constant temperature water outlet In communication, the valve drain is in communication with the housing drain.
A hot water system characterized by comprising:

a water heater having a hot water outlet of a water heater;

The constant temperature water discharge device is the constant temperature water discharge device according to any one of claims 1 to 11, wherein the module hot water inlet is in communication with the hot water outlet of the water heater.
A control method for a constant temperature water discharge device according to any one of claims 1 to 11, characterized in that it comprises:

Enter the set temperature;

Adjusting a water inlet ratio of the module cold water inlet and the module hot water inlet at the set temperature;

Reading the temperature detection value of the temperature detector;

When the difference between the temperature detection value and the set temperature is greater than a predetermined value, the valve constant temperature water inlet and the valve drain opening of the switching valve are controlled to open and the valve constant temperature water outlet is closed;

When the difference between the temperature detection value and the set temperature is less than or equal to the predetermined value, the valve constant temperature water outlet and the valve drain opening of the switching valve are controlled to open and the valve constant temperature water inlet is closed, After a predetermined period of time, the valve thermostatic water inlet and the valve thermostatic water outlet that control the switching valve are opened and the valve drain is closed.
The method of controlling a constant temperature water discharge device according to claim 13, wherein said predetermined value is 0 to 5 °C.
The method of controlling a constant temperature water discharge device according to any one of claims 13 to 14, wherein the predetermined time is 3-8 seconds.