Thermostatic valve of water heater, waterway assembly of water heater and water heater

Abstract

The utility model relates to the technical field of household appliances, and provides a thermostatic valve of a water heater, a waterway assembly of the water heater and the water heater. The thermostatic valve of the water heater comprises a valve plate assembly provided with a hot water hole, a cold water hole, a water outlet hole and a water replenishing hole; the valve plate assembly comprises a static valve plate and a movable valve plate, and the movable valve plate can rotate relative to the static valve plate, so that the water heater is switched among a water replenishing mode, a water supply mode and a closing mode; in the water replenishing mode, at least one of the hot water hole and the cold water hole is communicated with the water replenishing hole so as to replenish water to an inner container of the water heater; in the water supply mode, at least one of the hot water hole and the cold water hole is communicated with the water outlet hole; in the closing mode, the hot water hole and the cold water hole are both disconnected with the water outlet hole and the water supplementing hole. The thermostatic valve comprises the water replenishing hole, so that water can be supplied to a user through the water outlet hole, and water can also be replenished to the inner container of the water heater through the water replenishing hole. The thermostatic valve integrates the functions of water supply and water supplement, is high in practicability, and can simplify the assembly of the water heater.

Description

Technical Field

[0001] The utility model relates to the technical field of household appliances, in particular to a thermostatic valve of a water heater, a water channel component of the water heater and the water heater. Background Art

[0002] A water heater is a common household water heating device that uses electricity to heat tap water or water of suitable quality to a set temperature for daily use. The water heater includes a thermostatic valve, which is used to adjust the ratio of cold water and hot water so that users can get water of suitable temperature. Currently, the function of the thermostatic valve is relatively simple. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model provides a thermostatic valve for a water heater, which can not only adjust the temperature of water for the user, but also be used to replenish water to the inner tank of the water heater.

[0004] An embodiment of a second aspect of the utility model provides a water circuit assembly of a water heater.

[0005] An embodiment of the third aspect of the utility model provides a water heater.

[0006] A thermostatic valve for a water heater according to an embodiment of the utility model comprises:

[0007] The valve plate assembly is provided with a hot water hole, a cold water hole, a water outlet hole and a water supply hole;

[0008] The valve plate assembly includes a static valve plate and a movable valve plate, and the movable valve plate can rotate relative to the static valve plate to switch the water heater between a water replenishment mode, a water supply mode and a closed mode;

[0009] In the water replenishment mode, at least one of the hot water hole and the cold water hole is connected to the water replenishment hole to replenish water to the inner tank of the water heater; in the water supply mode, at least one of the hot water hole and the cold water hole is connected to the water outlet hole to supply water to the user; in the closed mode, the hot water hole and the cold water hole are both disconnected from the water outlet hole and the water replenishment hole.

[0010] The thermostatic valve of the water heater according to the embodiment of the utility model includes a water replenishment hole, so that in addition to supplying water to the user through the water outlet hole, water can also be replenished into the inner tank of the water heater through the water replenishment hole. This thermostatic valve integrates the functions of water supply and water replenishment, has strong practicality, and can simplify the assembly of the water heater.

[0011] According to the thermostatic valve of the water heater in the embodiment of the utility model, the static valve plate is provided with the hot water hole, the cold water hole and the water outlet hole, and the movable valve plate is provided with a connecting hole and the water replenishment hole; in the water supply mode, at least one of the hot water hole and the cold water hole is connected to the water outlet hole through the connecting hole.

[0012] According to the thermostatic valve of the water heater of the embodiment of the utility model, the water supply mode includes a hot water mode, a cold water mode and a mixed water mode;

[0013] In the hot water mode, the hot water hole is connected to the water outlet hole through the connecting hole; in the cold water mode, the cold water hole is connected to the water outlet hole through the connecting hole; in the mixed water mode, the hot water hole and the cold water hole are both connected to the water outlet hole through the connecting hole.

[0014] According to the thermostatic valve of the water heater of the embodiment of the utility model, the thermostatic valve of the water heater comprises:

[0015] A mounting seat, wherein the mounting seat is cylindrical, one end of the mounting seat is open, the other end of the mounting seat is provided with a through hole, the mounting seat is provided with a water replenishment port, in the water replenishment mode, at least one of the hot water hole and the cold water hole is connected to the water replenishment port through the water replenishment hole, and a mounting space is formed inside the mounting seat;

[0016] An end plate is fixed to the opening, and the end plate is provided with a hot water inlet, a cold water inlet and a water outlet, the hot water inlet is connected to the hot water hole, the cold water inlet is connected to the cold water hole, and the water outlet is connected to the water outlet hole;

[0017] The static valve plate is fixed in the installation space, and the movable valve plate is rotatably installed in the installation space;

[0018] A driving shaft is passed through the through hole and connected to the movable valve plate;

[0019] A motor is connected to the driving shaft.

[0020] According to the thermostatic valve of the water heater of the embodiment of the utility model, the water supply hole is opened on the side wall of the movable valve plate, and the water supply port is opened on the side wall of the mounting seat.

[0021] According to the thermostatic valve of the water heater in the embodiment of the utility model, sealing rings are arranged on both sides of the end plate, and the sealing rings are arranged corresponding to the hot water inlet, the cold water inlet and the water outlet.

[0022] According to the thermostatic valve of the water heater of the embodiment of the utility model, the mounting seat is provided with a first limiting portion;

[0023] The driving shaft is connected to the movable valve plate through a rotor;

[0024] The rotor is provided with a second limiting portion that cooperates with the first limiting portion to return the motor to zero when the first limiting portion and the second limiting portion are in contact.

[0025] The second embodiment of the utility model provides a water circuit assembly of a water heater, comprising:

[0026] The above-mentioned thermostatic valve;

[0027] A cold water pipe connected to the cold water hole;

[0028] A hot water pipe connected to the hot water hole;

[0029] A water outlet pipe connected to the water outlet hole;

[0030] A water supply pipe connected to the water supply hole;

[0031] The cold water pipe, the hot water pipe and the water outlet pipe are integrally processed pipes.

[0032] According to the water circuit assembly of the water heater of the embodiment of the utility model, the integrally processed pipe is provided with a first shell, and when the thermostatic valve includes a mounting seat, the mounting seat is provided with a step surface, and the thermostatic valve also includes a second shell, and the first shell and the second shell are positioned and fixed by the step surface.

[0033] The third aspect of the present invention provides a water heater, comprising:

[0034] An inner tank is provided with a liquid storage space, and the inner tank includes a side panel;

[0035] The thermostatic valve, or the water channel assembly, is mounted on the side panel and communicates with the liquid storage space;

[0036] A heat exchanger is installed in the inner tank, and is used to exchange heat between water used by the user and water in the liquid storage space.

[0037] According to the water heater of the embodiment of the utility model, the side panel is integrally formed with a water replenishment channel, the water replenishment hole is connected to the liquid storage space through the water replenishment channel, and the water replenishment channel is connected to the sewage discharge channel.

[0038] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0040] Figure 1 This is one of the partial structural schematic diagrams of the water heater in the embodiment of the present application;

[0041] Figure 2 is a schematic structural diagram of a thermostatic valve according to an embodiment of the present application;

[0042] Figure 3 is a schematic diagram of the adjustment range of the thermostatic valve in an embodiment of the present application;

[0043] Figure 4 is a schematic diagram of the assembly of the mounting base and the rotor of an embodiment of the present application;

[0044] Figure 5 This is one of the installation diagrams of the thermostatic valve according to the embodiment of the present application;

[0045] Figure 6 This is the second installation diagram of the thermostatic valve of the embodiment of the present application;

[0046] Figure 7 is a schematic structural diagram of a water channel assembly according to an embodiment of the present application;

[0047] Figure 8 This is the second partial structural schematic diagram of the water heater in the embodiment of the present application;

[0048] Fig. 9 is a schematic structural diagram of a side panel according to an embodiment of the present application;

[0049] Fig.10 is a method for controlling a thermostatic valve of a water heater according to an embodiment of the present application;

[0050] Reference numerals:

[0051] 10, thermostatic valve; 100, valve plate assembly; 110, static valve plate; 111, hot water hole; 112, cold water hole; 113, water outlet hole; 114, second notch; 120, moving valve plate; 121, connecting hole; 122, water supply hole; 123, third notch;

[0052] 200, mounting seat; 201, opening; 202, installation hole; 203, water supply port; 204, first notch; 205, first limiting portion; 206, step surface;

[0053] 300, end plate; 301, positioning column; 302, first protrusion; 303, second protrusion; 304, hot water inlet; 305, cold water inlet; 306, water outlet;

[0054] 400, driving shaft; 401, pin hole;

[0055] 500, sealing ring; 600, rotor; 601, second limiting portion; 602, third protrusion;

[0056] 700, water circuit assembly; 701, cold water pipe; 702, hot water pipe; 703, water outlet pipe; 704, water supply pipe; 705, first shell; 706, second shell; 707, water inlet pipe; 709, card slot; 710, buckle;

[0057] 800, liner; 810, side panel; 811, water supply channel; 812, exhaust channel; 813, first water inlet channel; 814, second water inlet channel; 815, ferry channel; 816, water outlet channel; 900, heat exchanger. DETAILED DESCRIPTION

[0058] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0059] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0060] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0061] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0062] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0063] A water heater is a common household hot water device that uses electricity to heat tap water or water of suitable quality to a set temperature for daily use. Figure 1 The water heater includes a thermostatic valve 10, which is used to adjust the ratio of cold water and hot water so that the user can get water with a suitable temperature. The water heater includes an inner tank 800, which heats the water in the inner tank 800 to indirectly heat the water used by the user. As the water in the inner tank 800 is heated, part of it will be vaporized to form steam and discharged from the inner tank 800, and then the water in the inner tank 800 will be reduced.

[0064] The first aspect of the present application provides a thermostatic valve 10 for a water heater. Figure 2, including a valve plate assembly 100, wherein the valve plate assembly 100 is provided with a hot water hole 111, a cold water hole 112, a water outlet hole 113 and a water replenishment hole 122; the valve plate assembly 100 includes a static valve plate 110 and a movable valve plate 120, and the movable valve plate 120 can rotate relative to the static valve plate 110, so that the water heater switches between a water replenishment mode, a water supply mode and a closed mode. In the water replenishment mode, at least one of the hot water hole 111 and the cold water hole 112 is connected to the water replenishment hole 122 to replenish water to the inner tank 800 of the water heater; in the water supply mode, at least one of the hot water hole 111 and the cold water hole 112 is connected to the water outlet hole 113 to supply water to the user; in the closed mode, the hot water hole 111 and the cold water hole 112 are both disconnected from the water outlet hole 113 and the water replenishment hole 122.

[0065] According to the embodiment of the present application, since the thermostatic valve 10 includes the water replenishment hole 122, in addition to supplying water to the user through the water outlet hole 113, water can also be replenished to the inner tank 800 of the water heater through the water replenishment hole 122. This thermostatic valve 10 integrates the functions of water supply and water replenishment, has strong practicality, and can simplify the assembly of the water heater.

[0066] Combination Figure 2 , the static valve plate 110 is provided with a hot water hole 111, a cold water hole 112 and a water outlet hole 113, and the movable valve plate 120 is provided with a connecting hole 121 and a water replenishing hole 122; in the water supply mode, at least one of the hot water hole 111 and the cold water hole 112 is connected to the water outlet hole 113 through the connecting hole 121. Since the hot water hole 111 and the cold water hole 112 are both located in the same valve plate (static valve plate 110) as the water outlet hole 113, the hot water hole 111 needs to be connected to the water outlet hole 113 through the connecting hole 121 on the movable valve plate 120; similarly, the cold water hole 112 also needs to be connected to the water outlet hole 113 through the connecting hole 121 on the movable valve plate 120.

[0067] Of course, it is worth mentioning that the water outlet hole 113 can also be set on the movable valve plate 120, and then in this case, there can be no connecting hole 121. In addition, the positions of the water replenishment hole 122 and the water outlet hole 113 can also be interchanged. For example, if the water replenishment hole 122 is set on the static valve plate 110, then in the water replenishment mode, the hot water hole 111 or the cold water hole 112 is connected to the water replenishment hole 122 through the connecting hole 121 on the movable valve plate 120. In addition, the positions of the hot water hole 111, the cold water hole 112, the water outlet hole 113 and the water replenishment hole 122 in the valve plate assembly 100 can be replaced. For example, the hot water hole 111, the cold water hole 112 and the water outlet hole 113 can also be set on the movable valve plate 120, and the connecting hole 121 and the water replenishment hole 122 are set on the static valve plate 110. The distribution modes of the hot water hole 111, the cold water hole 112, the water outlet hole 113, the water replenishment hole 122 and the connecting hole 121 in the valve plate assembly 100 are not exemplified one by one. It can be understood that all distribution modes that can realize the water replenishment mode, the water supply mode and the closing mode are included in the protection scope of this application.

[0068] According to an embodiment of the present application, the water supply mode generally includes a hot water mode, a cold water mode and a mixed water mode. In the hot water mode, the hot water hole 111 is connected to the water outlet hole 113 through the connecting hole 121. At this time, the cold water hole 112 is disconnected, that is, the cold water does not enter the water outlet hole 113 through the connecting hole 121. In the cold water mode, the cold water hole 112 is connected to the water outlet hole 113 through the connecting hole 121; at this time, the hot water hole 111 is disconnected, that is, the hot water does not enter the water outlet hole 113 through the connecting hole 121. In the mixed water mode, the hot water hole 111 and the cold water hole 112 are both connected to the water outlet hole 113 through the connecting hole 121. At this time, the mixed water obtained in the water outlet hole 113 is a mixture of hot water and cold water.

[0069] When the hot water hole 111, the cold water hole 112, the water outlet hole 113, the water replenishment hole 122 and the connecting hole 121 are Figure 2 When the structure is in the form of, the adjustment range of hot water mode, cold water mode, mixed water mode, water replenishment mode and off mode is referenced Figure 3 .

[0070] It is worth mentioning that, in general, in the water replenishment mode, it is only necessary for the cold water hole 112 and the water replenishment hole 122 to be connected, and then, at this time, the cold water enters the inner tank 800 of the water heater through the water replenishment hole 122 to replenish the cold water into the inner tank 800. Of course, there is no restriction on the water temperature of the water replenished into the inner tank 800, so hot water or mixed water can also be added to the inner tank 800. Furthermore, in the water replenishment mode, the hot water hole 111 and the water replenishment hole 122 can be connected, and the cold water hole 112 is disconnected at this time; or the cold water hole 112 and the hot water hole 111 can be connected to the water replenishment hole 122. Among them, adding hot water or mixed water to the inner tank 800 can shorten the heating time of the water heater.

[0071] Combination Figure 2 The thermostatic valve 10 of the water heater includes a mounting seat 200 , an end plate 300 and a driving shaft 400 . The mounting seat 200 is cylindrical, with an opening 201 at one end of the mounting seat 200 and a through hole 202 at the other end of the mounting seat 200. The mounting seat 200 is provided with a water replenishment port 203. In the water replenishment mode, at least one of the hot water hole 111 and the cold water hole 112 is connected to the water replenishment port 203 through the water replenishment hole 122, and an installation space is formed inside the mounting seat 200; the end plate 300 is fixed to the opening 201, and the end plate 300 is provided with a hot water inlet 304, a cold water inlet 305 and a water outlet 306. The hot water inlet 304 is connected to the hot water hole 111, the cold water inlet 305 is connected to the cold water hole 112, and the water outlet 306 is connected to the water outlet hole 113; the static valve plate 110 is fixed in the installation space, and the movable valve plate 120 can be rotatably installed in the installation space; the drive shaft 400 is passed through the through hole 202, and one end of the drive shaft 400 is connected to the movable valve plate 120, and the other end is connected to the motor (not marked in the figure). In this case, the external cold water pipe 701, hot water pipe 702 and water outlet pipe 703 (combined Figure 1 ) can be fixed to the end plate 300, and the water supply pipe 704 can be connected to the mounting seat 200, which is easy to install.

[0072] Figure 2 In the embodiment, the water supply hole 122 is provided on the side wall of the movable valve plate 120, and the water supply port 203 is provided on the side wall of the mounting seat 200. At this time, the water supply pipe 704 is connected to the side wall of the mounting seat 200, so that the distribution of the cold water pipe 701, the hot water pipe 702, the outlet pipe 703 and the water supply pipe 704 can be facilitated.

[0073] Please see further Figure 2 The end plate 300 is provided with a first protrusion 302 and a second protrusion 303. The first protrusion 302 is used to be fixed to the first notch 204 on the mounting seat 200, and the second protrusion 303 is used to be fixed to the second notch 114 on the static valve plate 110. Obviously, the positions of the first protrusion 302 and the first notch 204 can be interchanged, and the positions of the second protrusion 303 and the second notch 114 can also be interchanged. In addition, the drive shaft 400 is connected to the first notch 204 by a pin ( Figure 2 The pin shaft is not shown in the figure, and the pin shaft is installed at the position of the pin hole 401) and is fixedly connected with the rotor 600; the rotor 600 is provided with a third protrusion 602, and the movable valve plate 120 is provided with a third notch 123, so that the driving shaft 400 can drive the movable valve plate 120 to rotate through the rotor 600. Similarly, the positions of the third protrusion 602 and the third notch 123 can also be interchanged. In addition, the matching method of the above protrusion and notch can also be replaced by any other existing assembly method. Of course, the matching method of the protrusion and notch can facilitate the rapid disassembly and assembly of the thermostatic valve 10, and the structure is simple.

[0074] Figure 2 In the figure, sealing rings 500 are arranged on both sides of the end plate 300, and the sealing rings 500 are arranged corresponding to the hot water inlet 304, the cold water inlet 305 and the water outlet 306 to ensure that no water leakage occurs at the positions of the hot water inlet 304, the cold water inlet 305 and the water outlet 306.

[0075] According to the embodiments of this application, see Figure 4 The mounting seat 200 is provided with a first limiting portion 205; the driving shaft 400 is connected to the movable valve plate 120 through the rotor 600; the rotor 600 is provided with a second limiting portion 601 which is limited and matched with the first limiting portion 205, so that the motor returns to zero when the first limiting portion 205 and the second limiting portion 601 are in contact. Figure 4 When the rotor 600 rotates forward or turns to the limit position, the first limit part 205 and the second limit part 601 will both be limited and stopped, and the motor is at zero position, achieving zeroing. When the thermostatic control valve is opened, the motor can be zeroed twice to improve the control accuracy of the thermostatic control valve.

[0076] Please see again Figure 1 According to an embodiment of the second aspect of the present application, a water circuit assembly 700 of a water heater (hereinafter referred to as the water circuit assembly 700) is provided. Figure 1 In the embodiment, the water circuit assembly 700 includes the thermostatic valve 10, a cold water pipe 701, a hot water pipe 702, a water outlet pipe 703 and a water supply pipe 704. The hot water pipe 702 is connected to the hot water hole 111, the cold water pipe 701 is connected to the cold water hole 112, the water outlet pipe 703 is connected to the water outlet hole 113; and the water supply pipe 704 is connected to the water supply hole 122.

[0077] The water circuit assembly 700 of the embodiment of the present application realizes water replenishment through the thermostatic valve 10, and thus it does not need to additionally set up a control valve for the water replenishment pipe 704. It has a simple structure, is easy to disassemble and assemble, and can save installation space.

[0078] According to the embodiment of the present application, the cold water pipe 701, the hot water pipe 702 and the water outlet pipe 703 are integrally processed pipes, which can facilitate the disassembly and assembly of the water channel assembly 700 and further simplify the structure of the water channel assembly 700.

[0079] Combination Figure 2 , Figure 5 and Figure 6, the integrally processed tube is provided with a first shell 705, when the thermostatic valve 10 includes a mounting seat 200, the mounting seat 200 is provided with a step surface 206, and the thermostatic valve 10 also includes a second shell 706, and the first shell 705 and the second shell 706 are positioned and fixed by the step surface 206. Since the integrally processed tube is processed with the first shell 705 at the same time, the installation of the thermostatic valve 10 can be facilitated, and the sealing reliability of the connection can be ensured. Specifically, the mounting seat 200 and the end plate 300 are installed in the first shell 705, and the sealing ring 500 provided on the end plate 300 is sealed and abutted against the end surface of the first shell 705, and the sealing ring 500 is also provided between the side wall of the mounting seat 200 and the side wall of the first shell 705, the end surface of the second shell 706 is abutted against the step surface 206, and the first shell 705 and the second shell 706 are fixed at the position of the step surface 206. And the end plate 300 can be positioned and connected with the first shell 705 through the positioning column 301.

[0080] See also Figure 7 In the embodiment of the present application, for the water circuit assembly, the water pipes (at least one of the cold water pipe 701, the hot water pipe 702, the water outlet pipe 703 and the water supply pipe 704) are connected to the pipeline through a wider slot 709 to achieve the movable adjustment of the pipeline, wherein the slot 709 and the buckle 710 cooperate. The water pipe realizes the movable distance of the pipeline adjustment through the end surface connection margin between the pipe end surface and the first shell 705 of the thermostatic valve 10. The water pipe and the first shell 705 are distributed in a cross shape as a whole, so that the up, down, left and right adjustment of the water circuit assembly pipeline can be achieved.

[0081] According to an embodiment of the third aspect of the present application, there is provided a water heater, Figure 8 , including an inner tank 800 and a heat exchanger 900, and further including the thermostatic valve 10 or the water circuit assembly 700. The inner tank 800 is provided with a liquid storage space, and the inner tank 800 includes a side panel 810 ( Figure 8 In order to display the heat exchanger 900, the side panel 810 is hidden); the thermostatic valve 10 or the water channel assembly 700 is installed on the side panel 810 and is connected to the liquid storage space; the heat exchanger 900 is installed in the inner tank 800, and the heat exchanger 900 is used to exchange heat between water used by the user and water in the liquid storage space.

[0082] According to the embodiments of the present application, since the thermostatic valve 10 or the water channel assembly 700 is provided, the technical effects of the thermostatic valve 10 or the water channel assembly 700 are provided, and are not further described herein.

[0083] According to the embodiments of the present application, Fig. 9The side panel 810 is integrally formed with a water replenishment channel 811, and the water replenishment hole 122 is connected to the liquid storage space through the water replenishment channel 811, and the water replenishment channel 811 is connected to the sewage discharge channel (the sewage discharge channel is correspondingly connected to the bottom end of the water replenishment channel 811 and is connected to the inside of the inner liner 800 to discharge the sewage in the inner liner 800). In this case, water replenishment does not require additional pipelines, and only needs to pass through the water replenishment channel 811 on the side panel 810, and with the help of the sewage discharge channel corresponding to the sewage discharge cavity on the side panel 810, water can be replenished into the inner liner 800, which does not take up additional space and has a simple structure.

[0084] Fig. 9 In addition to the water supply channel 811, the side panel 810 is also provided with at least one of an exhaust channel 812, a first water inlet channel 813, a second water inlet channel 814, a transition channel 815 and a water outlet channel 816.

[0085] The exhaust channel 812 is used to connect the top of the liquid storage space with the outside. Furthermore, when steam is formed in the inner tank 800 and the pressure tends to increase, the steam can be discharged through the exhaust channel 812. The exhaust channel 812 integrally formed on the side panel 810 does not occupy the volume of the liquid storage space. When the outer dimensions of the inner tank 800 remain unchanged, the storage capacity of the liquid is effectively increased, and the heat exchange efficiency between the liquid in the liquid storage space and the water in the heat exchanger 900 is improved; and the high-temperature steam of the exhaust channel 812 is discharged from the side of the side panel 810, hidden from the user's sight to improve the aesthetics while ensuring that the steam will not spray toward the user, avoiding scalding of the user and improving the safety of the water heater; further, the user water in the present application is obtained by heat exchange with the liquid in the liquid storage space through the heat exchanger 900, and the user water does not contact the components (heating components, valve body, etc.) in the liquid storage space of the inner tank 800, effectively ensuring the water quality of the user water, and at the same time, the impurities or pollutants that may exist in the user water will not pollute the components in the liquid storage space of the inner tank 800 (such as forming scale on the surface of the heating components), effectively improving the service life of the water heater. The exhaust pipe 812 arranged on the side panel 810 exchanges heat with the water in the inner tank, which is conducive to the liquefaction of water vapor.

[0086] The first water inlet channel 813 , the second water inlet channel 814 , the transition channel 815 and the water outlet channel 816 can make the arrangement of the water channel assembly 700 more flexible, and can be adapted to other components in the inner tank 800 on the basis of centralized installation of the water channel assembly 700 .

[0087] Specifically, the bottom end of the first water inlet channel 813 is connected to the water inlet pipe 707, the top end of the first water inlet channel 813 and the top end of the second water inlet channel 813 are connected to the cold water pipe 701, the bottom end of the second water inlet channel 813 is connected to the heat exchanger 900, and the cold water pipe 701 is provided with a mounting portion for a pre-treatment component. It can be understood that in this embodiment, by setting the first water inlet channel 813 and the second water inlet channel 814, the water inlet position can be changed, and the positions of the heat exchanger, the water inlet pipe 707 and the pre-treatment module can be reasonably arranged. The water inlet pipe 707 and the pre-treatment module can be installed on the side of the side panel 810 away from the liquid storage space, providing installation space for the layout of the water inlet position, the water inlet pipe 707 and the pre-treatment module, providing greater flexibility and convenience. Among them, the pre-treatment module can be a filtering module or a sterilization module, etc. Fig. 9 In the embodiment, the water inlet of the heat exchanger corresponds to the bottom end of the second water inlet channel 814, thereby ensuring that the water cooling in the tube of the heat exchanger flows from bottom to top, allowing the cold water to fully stay in the heat exchange tube, thereby ensuring the heat exchange efficiency.

[0088] Since the first water inlet channel 813 and the second water inlet channel 814 are integrally formed on the side panel 810, in order to achieve a reasonable position layout of the water inlet pipe 707 and the pre-processing module on the side panel 810, there is no need to design complex pipelines outside the inner tank 800 to connect the water inlet pipe 707 and the pre-processing module, which greatly reduces the number and length of external connecting pipes, thereby reducing both the volume and the leakage points of the water heater.

[0089] The top of the water outlet channel 816 is connected to the water outlet of the water heater 900, and the bottom is connected to the hot water pipe 702. Therefore, the arrangement of the water outlet channel 816 can make the hot water pipe 702 closer to the hot water hole 111 of the thermostatic valve 10. The arrangement of the transition channel 815 can make the heat exchanger 900 include multiple heat exchange tubes, and the multiple heat exchange tubes are connected through the transition channel 815.

[0090] The present application also provides a method for controlling a thermostatic valve 10 of a water heater, see Fig.10 ,include:

[0091] S100, thermostatic valve 10 program starts;

[0092] S200, the system is initialized and detects whether the inner tank 800 is short of water. If so, the thermostatic valve 10 turns to the water replenishment position, and the water heater corresponds to the water replenishment mode. If the thermostatic valve 10 is not short of water, enter S300;

[0093] S300, detecting whether the thermostatic valve 10 has a water flow signal within a set time, such as within 3 seconds. If the thermostatic valve 10 has no water flow signal, then enter S400. If there is a water flow signal, then enter S500;

[0094] S400, the motor is reset to zero; in order to improve the control accuracy of the thermostatic valve 10, after the motor is reset to zero successfully for the first time, the motor leaves the zero position and the motor is reset to zero for the second time. If the motor cannot leave the zero position, the motor reports an error (reports E63). After the motor is reset to zero successfully for the second time, the pre-opening degree of the thermostatic valve 10 is calculated to achieve rapid temperature adjustment.

[0095] S500, if the thermostatic valve 10 has a water flow signal within the set time, the motor maintains the current opening. While the motor maintains the current opening, continue to determine whether there is a water flow signal. If there is a water flow signal, maintain the current constant temperature control. If there is no water flow signal, enter step 600;

[0096] S600, determine whether the inner tank 800 is short of water through liquid level detection. If it is short of water and meets the water replenishment state (it meets the water replenishment state only when it is not in the water use state), the motor drives the movable valve plate 120 of the thermostatic valve 10 to rotate to the water replenishment position. At this time, the water heater corresponds to the water replenishment mode. If there is no water shortage, the position of the movable valve plate 120 is adjusted at this time, and the water heater corresponds to the water supply mode. The water supply mode includes the state of full hot water, the state of full cold water and the constant temperature state. In S600, when used for the first time, it is necessary to manually drain the water in the heat exchanger 900 in the inner tank 800 by fully opening the hot water. At this time, manually turn on the hot water to fully open, and a corresponding safety switch can be set. Only when the user turns on the safety switch, the hot water mode will be used to fully open the hot water to empty the water in the heat exchanger 900 to ensure safe use.

[0097] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not deviate from the spirit and scope of the technical solutions of the present invention, and should be included in the protection scope of the present invention.

Claims

1. A thermostatic valve for a water heater, characterized in that: include: The valve plate assembly is provided with a hot water hole, a cold water hole, a water outlet hole and a water supply hole; The valve plate assembly includes a static valve plate and a movable valve plate, and the movable valve plate can rotate relative to the static valve plate to switch the water heater between a water replenishment mode, a water supply mode and a closed mode; In the water replenishment mode, at least one of the hot water hole and the cold water hole is connected to the water replenishment hole to replenish water into the inner tank of the water heater; In the water supply mode, at least one of the hot water hole and the cold water hole is connected to the water outlet hole to supply water to the user; in the closed mode, the hot water hole and the cold water hole are both disconnected from the water outlet hole and the water replenishment hole.

2. The thermostatic valve of the water heater according to claim 1, characterized in that: The static valve plate is provided with the hot water hole, the cold water hole and the water outlet hole, and the movable valve plate is provided with a connecting hole and the water replenishment hole; in the water supply mode, at least one of the hot water hole and the cold water hole is connected to the water outlet hole through the connecting hole.

3. The thermostatic valve of the water heater according to claim 2, characterized in that: The water supply mode includes a hot water mode, a cold water mode and a mixed water mode; In the hot water mode, the hot water hole is connected to the water outlet hole through the connecting hole; in the cold water mode, the cold water hole is connected to the water outlet hole through the connecting hole; in the mixed water mode, the hot water hole and the cold water hole are both connected to the water outlet hole through the connecting hole.

4. The thermostatic valve of the water heater according to claim 2, characterized in that: The thermostatic valve of the water heater comprises: A mounting seat, wherein the mounting seat is cylindrical, one end of the mounting seat is open, the other end of the mounting seat is provided with a through hole, the mounting seat is provided with a water replenishment port, in the water replenishment mode, at least one of the hot water hole and the cold water hole is connected to the water replenishment port through the water replenishment hole, and a mounting space is formed inside the mounting seat; An end plate is fixed to the opening, and the end plate is provided with a hot water inlet, a cold water inlet and a water outlet, the hot water inlet is connected to the hot water hole, the cold water inlet is connected to the cold water hole, and the water outlet is connected to the water outlet hole; The static valve plate is fixed in the installation space, and the movable valve plate is rotatably installed in the installation space; A driving shaft is passed through the through hole and connected to the movable valve plate; A motor is connected to the driving shaft.

5. The thermostatic valve for a water heater according to claim 4, characterized in that: The water replenishment hole is formed on the side wall of the movable valve plate, and the water replenishment port is formed on the side wall of the mounting seat.

6. The thermostatic valve for a water heater according to claim 4, characterized in that: Sealing rings are arranged on both sides of the end plate, and the sealing rings are arranged corresponding to the hot water inlet, the cold water inlet and the water outlet.

7. The thermostatic valve for a water heater according to claim 4, characterized in that: The mounting seat is provided with a first limiting portion; The driving shaft is connected to the movable valve plate through a rotor; The rotor is provided with a second limiting portion that cooperates with the first limiting portion to return the motor to zero when the first limiting portion and the second limiting portion are in contact.

8. A water circuit assembly of a water heater, characterized in that: include: The thermostatic valve according to any one of claims 1 to 7; A cold water pipe connected to the cold water hole; A hot water pipe connected to the hot water hole; A water outlet pipe connected to the water outlet hole; A water supply pipe connected to the water supply hole; The cold water pipe, the hot water pipe and the water outlet pipe are integrally processed pipes.

9. The water circuit assembly of the water heater according to claim 8, characterized in that: The one-piece processed pipe is provided with a first shell, and when the thermostatic valve includes a mounting seat, the mounting seat is provided with a step surface, and the thermostatic valve further includes a second shell, and the first shell and the second shell are positioned and fixed by the step surface.

10. A water heater, characterized in that: include: An inner liner is provided with a liquid storage space, and the inner liner includes a side panel; The thermostatic valve according to any one of claims 1 to 7, or the water channel assembly according to claim 8 or claim 9, is mounted on the side panel and communicates with the liquid storage space; A heat exchanger is installed in the inner tank, and is used to exchange heat between water used by the user and water in the liquid storage space.

11. The water heater according to claim 10, characterized in that The side panel is integrally formed with a water replenishment channel, the water replenishment hole is connected to the liquid storage space through the water replenishment channel, and the water replenishment channel is connected to the sewage discharge channel.

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