CN113757412A - Thermostatic valve and water heater - Google Patents

Abstract

The embodiment of the application provides a thermostatic valve and water heater, wherein, the thermostatic valve includes: the valve component comprises a valve sleeve and a valve core which are coaxially arranged, wherein an adjusting cavity is limited in the valve sleeve, the valve sleeve is provided with a water inlet hole and a water outlet hole which are communicated with the adjusting cavity and are arranged at intervals, the water outlet hole is communicated with a cold and hot water mixing cavity of the thermostatic valve, and at least part of the valve core is rotatably arranged in the adjusting cavity and is used for adjusting the flow of water flowing from the water inlet hole to the water outlet hole. The thermostatic valve according to the embodiment of the application has the advantages of simple structure, convenience in adjustment and the like, and the valve core and the valve sleeve are high in matching degree, the mixing proportion of cold water and hot water is controlled accurately, and the output temperature of mixed water is constant.

Description

Thermostatic valve and water heater

Technical Field

The application relates to the technical field of water heaters, in particular to a thermostatic valve and a water heater.

Background

The electronic thermostatic valve in the market at present has various design schemes, and the adjustment proportion of cold water and hot water is automatically adjusted by adopting a motor and an adjusting valve core. The ceramic chip adjusting valve core is provided in the related art, the opening degree of cold and hot water of the ceramic chip valve core is adjusted by adjusting the steering angle, but the structure is complex, the requirement on the matching of the valve core is high, and when the water quality is poor, the phenomena of blockage or cold and hot water mixing are easy to occur, so that the adjusting precision is not high.

Disclosure of Invention

The embodiment of the application provides a thermostatic valve and a water heater with the same, so as to solve or alleviate one or more technical problems in the prior art.

In a first aspect, an embodiment of the present application provides a thermostatic valve, including:

the valve component comprises a valve sleeve and a valve core which are coaxially arranged, an adjusting cavity is limited in the valve sleeve, the valve sleeve is provided with a water inlet hole and a water outlet hole which are communicated with the adjusting cavity and are arranged at intervals, the water outlet hole is communicated with a cold and hot water mixing cavity of the thermostatic valve, and at least part of the valve core is rotatably arranged in the adjusting cavity and is used for adjusting the flow of water flowing from the water inlet hole to the water outlet hole.

In one embodiment, the valve core is provided with an adjusting part, the adjusting part is constructed in a hollow structure to limit a water passing cavity, the peripheral wall of the adjusting part is provided with an adjusting hole communicated with the water passing cavity, and the adjusting part is rotatably arranged in the adjusting cavity so that the adjusting hole is communicated with at least one of the water inlet hole and the water outlet hole.

In one embodiment, in the process that the adjusting part rotates relative to the adjusting cavity, the adjusting hole is always communicated with the water inlet hole, and the adjusting hole is communicated with or separated from the water outlet hole.

In one embodiment, the outer circumferential wall of the adjustment portion is configured as a cylindrical surface.

In one embodiment, the valve assembly further comprises a housing defining a flow passage therein, the valve housing is disposed through the flow passage, wherein the water inlet is in communication with a water inlet end of the flow passage, the water outlet is in communication with a water outlet end of the flow passage, and the water outlet end of the flow passage is in communication with the hot and cold water mixing chamber.

In one embodiment, the housing is provided with a valve housing chamber within which the valve housing is located, wherein the axial direction of the valve housing chamber is perpendicular to the axial direction of the water flow passage.

In one embodiment, a seal is provided between the outer peripheral wall of the valve element and the inner peripheral wall of the adjustment chamber.

In one embodiment, one of the outer circumferential wall of the valve sleeve and the inner circumferential wall of the valve sleeve cavity is provided with a positioning groove extending in the axial direction of the valve sleeve, and the other is provided with a positioning protrusion in positioning fit with the positioning groove.

In one embodiment, the thermostatic valve further comprises:

the mixing part is limited with a cold and hot water mixing cavity, the cold and hot water mixing cavity is provided with a cold water inlet, a hot water inlet and a mixed water outlet, and the cold water inlet is communicated with the water outlet end of the water passing flow channel.

In one embodiment, a divider is disposed within the hot and cold water mixing chamber, the divider dividing the hot and cold water mixing chamber into a first flow path and a second flow path, wherein the first flow path is in communication with the hot water input port, the second flow path is in communication with the mixed water outlet, and the cold water input port is in communication with both the first flow path and the second flow path.

In one embodiment, the opening directions of any two of the cold water inlet, the hot water inlet, and the mixed water outlet are perpendicular to each other.

In one embodiment, the thermostatic valve further comprises:

the cold water input part is provided with a cold water input port, a first cold water outlet and a second cold water outlet, the cold water input part is limited with a first cold water flow path communicated between the cold water input port and the first cold water outlet and a second cold water flow path communicated between the cold water input port and the second cold water outlet, and the first cold water outlet is communicated with the water inlet end of the water passing flow path.

In one embodiment, the opening directions of any two of the cold water input port, the first cold water outlet port and the second cold water outlet port are perpendicular to each other, wherein the opening direction of the second cold water outlet port is the same as that of the hot water input port, and the opening direction of the cold water input port is the same as that of the mixed water outlet port.

In one embodiment, the thermostatic valve further comprises a drive portion comprising:

the output end of the motor is in transmission connection with the valve core;

the motor is arranged on the bracket;

the mounting plate, the support is connected to the mounting plate through first fastener, and the mounting plate is connected to the casing of valve module through the second fastener.

In one embodiment, the thermostatic valve further comprises:

and the control device is electrically connected with the motor and is used for controlling the rotating direction and the rotating angle of the motor.

In one embodiment, the thermostatic valve further comprises a flow sensor electrically connected to the control device for sensing the flow of cold water into the water inlet end of the water flow passage, a first temperature sensor for sensing the temperature of the cold water entering the water inlet end of the water flow passage, and a second temperature sensor for sensing the temperature of the mixed water in the cold and hot water mixing chamber.

In a second aspect, embodiments of the present application provide a water heater including a thermostat valve according to the above-described embodiments of the present application.

The thermostatic valve of this application embodiment has advantages such as simple structure, regulation convenience through adopting above-mentioned technical scheme to the match degree of case and valve barrel is higher, and the mixing ratio control of hot and cold water is accurate, mixes advantages such as water output temperature invariant.

The foregoing summary is provided for the purpose of description only and is not intended to be limiting in any way. In addition to the illustrative aspects, embodiments, and features described above, further aspects, embodiments, and features of the present application will be readily apparent by reference to the drawings and following detailed description.

Drawings

In the drawings, like reference numerals refer to the same or similar parts or elements throughout the several views unless otherwise specified. The figures are not necessarily to scale. It is appreciated that these drawings depict only some embodiments in accordance with the disclosure and are therefore not to be considered limiting of its scope.

Fig. 1 shows an exploded schematic view of a thermostatic valve according to an embodiment of the present application;

fig. 2 shows a schematic structural view of a valve assembly of a thermostatic valve according to an embodiment of the present application;

fig. 3 shows a cross-sectional view of a thermostatic valve according to an embodiment of the present application;

fig. 4 shows a partial structural section of a thermostatic valve according to an embodiment of the present application;

fig. 5 shows a schematic structural diagram of a water heater according to an embodiment of the application.

Description of reference numerals:

a water heater 1;

a thermostatic valve 100;

a mixing section 10; a hot and cold water mixing chamber 10 a; a cold water inlet 11; a hot water input port 12; a mixed water outlet 13; a separator 14; a first flow passage 15; a second flow passage 16;

a valve assembly 20; a housing 21; a water passing flow channel 211; a water inlet end 211 a; a water outlet end 211 b; a valve housing cavity 212; a valve housing 22; the adjustment chamber 22 a; a water inlet 221; a water outlet hole 222; a valve core 23; an adjustment portion 231; the water passing cavity 231 a; an adjustment aperture 232; a seal 24; a positioning boss 25;

a cold water input 30; a cold water inlet 31; a first cold water outlet 32; a second cold water outlet 33; the first cold water flow path 34; a second cold water flow path 35;

a drive section 40; a motor 41; a bracket 42; a mounting plate 43; a first mounting hole 431; a second mounting hole 432;

a hot water input joint 51; a positioning plug 511; a nut 512; a mixed water output joint 52; a cold water input fitting 53; a cold water output connection 54;

a flow sensor 61; a first temperature sensor 62; a second temperature sensor 63;

a body 200.

Detailed Description

In the following, only certain exemplary embodiments are briefly described. As those skilled in the art will recognize, the described embodiments may be modified in various different ways, all without departing from the spirit or scope of the present application. Accordingly, the drawings and description are to be regarded as illustrative in nature, and not as restrictive.

A thermostat valve 100 according to an embodiment of the present application is described below with reference to fig. 1-4. The thermostat valve 100 according to the embodiment of the present application may be used in a water heating apparatus such as a gas water heater, an electric water heater, or the like. The thermostat valve 100 may be an electronic thermostat valve that is regulated by an electronic drive device (e.g., a motor).

As shown in fig. 1 to 4, a thermostat valve 100 according to an embodiment of the present application includes a mixing portion 10 and a valve assembly 20.

Specifically, the mixing portion 10 defines therein a hot and cold water mixing chamber 10a, and the hot and cold water mixing chamber 10a has a cold water inlet 11, a hot water input port 12, and a mixed water outlet 13. It can be understood that the cold water inlet 11 is used for introducing cold water into the hot and cold water mixing chamber 10a, the hot water inlet 12 is used for introducing hot water into the hot and cold water mixing chamber 10a, wherein the cold water may be other normal temperature water such as tap water, the hot water may be high temperature water heated by a heating device of the water heater 1, and the cold water and the hot water are mixed in a certain proportion in the hot and cold water mixing chamber 10a to form mixed water at a certain temperature, and finally flow out from the mixed water outlet 13.

The valve assembly 20 includes a housing 21, and a valve core 23 and a valve sleeve 22 coaxially disposed, wherein a water flowing channel 211 is defined in the housing 21, the valve sleeve 22 is disposed through the housing 21, an adjusting cavity 22a is defined in the valve sleeve 22, the valve sleeve 22 has a water inlet 221 and a water outlet 222 that are spaced and communicated with the adjusting cavity 22a, the water inlet 221 is communicated with a water inlet end 211a of the water flowing channel 211, the water outlet 222 is communicated with a water outlet end 211b of the water flowing channel 211, and at least a portion of the valve core 23 is rotatably disposed in the adjusting cavity 22a for adjusting the flow rate of water flowing from the water inlet 221 to the water outlet 222. The water passage 211 may be used to supply cold water or hot water to the cold and hot water mixing chamber 10 a. For example, in the example shown in fig. 1-4, the water flowing channel 211 is used for inputting cold water into the hot and cold water mixing chamber 10a, i.e. the water outlet end of the water flowing channel 211 is connected with the cold water inlet 11 of the hot and cold water mixing chamber 10 a; in other examples of the present application, the water flowing passage 211 can also be used for inputting hot water into the hot and cold water mixing chamber 10a, i.e. the water outlet end of the water flowing passage 211 is connected with the hot water input port 12 of the hot and cold water mixing chamber 10 a.

Further, when the valve core 23 rotates to a preset opening angle, the water input into the water flow passage 211 can flow from the water inlet hole 221 to the water outlet hole 222; when the valve element 23 rotates to a predetermined closing angle, the water input into the water flow passage 211 cannot flow from the water inlet 221 to the water outlet 222. Preferably, the valve element 23 may be made of copper.

In one example, the housing 21 defines a valve housing cavity 212, the valve housing 22 is positioned within the valve housing cavity 212, and an axial direction of the valve housing cavity 212 is perpendicular to an axial direction of the flow passage 211. The valve housing 22 may be constructed in a hollow cylindrical structure to define an adjustment chamber 22a in the interior of the valve housing 22. The housing cavity 212 is located between the inlet end 211a and the outlet end 211b of the flow passage 211, and the valve housing 22 is coaxially disposed with the housing cavity 212. The water inlet holes 221 and the water outlet holes 222 are respectively formed in the circumferential wall of the valve housing 22 and are spaced apart in the circumferential direction of the valve housing 22, and further, the water inlet holes 221 and the water outlet holes 222 may be oppositely disposed in the axial direction of the water flow passage 211, so that the water inlet holes 221 of the valve housing 22 are disposed toward the water inlet end 211a of the water flow passage 211, and the water outlet holes 222 of the valve housing 22 are disposed toward the water outlet end 211b of the water flow passage 211. Thus, when the valve core 23 is rotated to the opening angle, the water flowing from the water inlet end 211a of the water flowing channel 211 can enter the adjusting chamber 22a through the water inlet hole 221 and flow out from the water outlet hole 222, and then enter the hot and cold water mixing chamber 10a from the water outlet end 211b of the water flowing channel 211 through the cold water inlet 11 or the hot water inlet 12 of the hot and cold water mixing chamber 10 a.

Further, the valve core 23 is disposed coaxially with the valve housing 22, and at least a portion of the valve core 23 extends into the adjusting cavity 22a of the valve housing 22, so that the valve core 23 can block a flow area of at least one of the water inlet hole 221 and the water outlet hole 222 by controlling the valve core 23 to rotate in the adjusting cavity 22a, thereby changing a flow rate of water flowing from the water inlet hole 221 to the water outlet hole 222. For example, when the valve element 23 completely blocks the water inlet hole 221, water cannot flow into the adjustment chamber 22a through the water inlet hole 221, or when the valve element 23 completely blocks the water outlet hole 222, water cannot flow out from the adjustment chamber 22a through the water outlet hole 222, and at this time, the flow rate of water flowing from the water inlet hole 221 to the water outlet hole 222 is zero; as shown in fig. 2, when neither the inlet opening 221 nor the outlet opening 222 is completely blocked by the valve element 23, water can flow from the inlet opening 221 to the outlet opening 222, and the flow rate from the inlet opening 221 to the outlet opening 222 depends on the smallest flow area of the inlet opening 221 and the outlet opening 222. Accordingly, the flow rate of water passing through the valve assembly 20 can be adjusted by rotating the control valve body 23 in the valve housing 22, thereby adjusting the flow rate of water entering the hot and cold water mixing chamber 10a of the mixing portion 10, and further adjusting the mixing ratio of hot water and cold water in the hot and cold water mixing chamber 10a to form mixed water at a certain temperature.

The valve core in the related art controls the mixing proportion of cold water and hot water by adjusting the stroke, and adjusts the size of the opening of the cold water opening or the hot water opening by adjusting the number of turns of the thread of the valve core. The thermostatic valve 100 of the embodiment of the present application, through setting the valve sleeve 22 and the valve core 23 rotating relative to the valve sleeve 22 in the water flowing channel 211 of the housing 21, can adjust the flow rate of the water flowing from the water inlet 221 of the valve sleeve 22 to the water outlet 222 of the valve sleeve 22 by controlling the rotation angle of the valve core 23 relative to the valve sleeve 22, thereby adjusting the output flow rate of the valve assembly 20, and further adjusting the mixing ratio of the cold water and the hot water entering the cold and hot water mixing chamber 10a to form thermostatic water with a certain temperature. Therefore, the thermostatic valve 100 of the embodiment of the application can accurately control the mixing ratio of cold water and hot water by controlling the rotation angle of the valve core 23, and the technical problem of low adjustment precision of the valve core in the related art due to large axial offset is solved.

In addition, the adjusting valve core with the ceramic chip in the related art adjusts the mixing ratio of cold water and hot water by controlling the steering angle of the ceramic chip, but the structure of the ceramic chip is complex, and the matching degree requirement of the adjusting valve core on the ceramic chip is high, so that the adjusting accuracy is not high. The utility model provides a thermostatic valve 100 is through setting up inlet opening 221 and apopore 222 on valve barrel 22 to through the turned angle who adjusts the case 23 with valve barrel 22 normal running fit, can adjust the flow area of inlet opening 221 and apopore 222 of valve barrel 22, and have simple structure, adjust advantages such as convenient, and be favorable to improving case 23 and valve barrel 22's degree of coordination, the regulation case among the correlation technique leads to the lower technical problem of degree of coordination because of the structure complicacy of ceramic wafer has been solved.

In one embodiment, as shown in fig. 3 and 4, the valve body 23 has an adjustment portion 231, the adjustment portion 231 is configured as a hollow structure to define a water passing cavity 231a, a peripheral wall of the adjustment portion 231 is provided with an adjustment hole 232 communicating with the water passing cavity 231a, and the adjustment portion 231 is rotatably disposed through the adjustment cavity 22a such that the adjustment hole 232 communicates with at least one of the water inlet hole 221 and the water outlet hole 222.

It can be understood that the outer circumferential wall of the adjusting portion 231 is attached to the inner circumferential wall of the valve housing 22, and the adjusting hole 232 is communicated with at least one of the water inlet hole 221 or the water outlet hole 222 by controlling the rotation angle of the valve core 23, so that the cold water can flow or be blocked between the water inlet hole 221 and the water outlet hole 222. Specifically, when the adjusting hole 232 is communicated with both the water inlet hole 221 and the water outlet hole 222, the cold water may flow into the water passing cavity 231a from the portion where the water inlet hole 221 and the adjusting hole 232 coincide, and then flow out through the portion where the adjusting hole 232 and the water outlet hole 222 coincide, so that the cold water may flow from the water inlet end 211a to the water outlet end 211b of the water flow passage 211. And by adjusting the rotation angle of the valve core 23, the minimum communication area between the adjusting hole 232 and the water inlet hole 221 and the water outlet hole 222 can be changed, so that the flow rate of cold water flowing from the water inlet hole 221 to the water outlet hole 222 can be adjusted. When the adjusting hole 232 is communicated with one of the water inlet hole 221 and the water outlet hole 222, or the adjusting hole 232 is not communicated with both the water inlet hole 221 and the water outlet hole 222, the cold water cannot flow from the water inlet hole 221 to the water passing cavity 231a and/or the cold water cannot flow from the water passing cavity 231a through the water outlet hole 222, that is, the cold water cannot flow from the water inlet end 211a to the water outlet end 211b of the water flow passage 211, and at this time, the output flow rate of the cold water of the valve assembly 20 is zero.

Alternatively, the outer circumferential wall of the regulating portion 231 is configured as a cylindrical surface. The inner peripheral wall of the valve sleeve 22 is also configured as a cylindrical surface, so that the outer peripheral wall of the adjusting portion 231 and the inner peripheral wall of the valve sleeve 22 can be well attached to each other, and good sealing performance between the outer peripheral wall of the adjusting portion 231 and the inner peripheral wall of the valve sleeve 22 is ensured.

Optionally, during the rotation of the adjusting portion 231 relative to the adjusting cavity 22a, the adjusting hole 232 is always communicated with the water inlet hole 221, and the adjusting hole 232 is communicated with or isolated from the water outlet hole 222.

The relationship between the rotation angle of the valve body 23 and the mixing ratio of the cold water and the hot water entering the cold and hot water mixing chamber 10a will be described as a specific example. The rotation range of the adjusting portion 231 relative to the adjusting cavity 22a is 120 °, in the process that the adjusting portion 231 rotates relative to the valve core 23, the adjusting hole 232 is always communicated with the water inlet hole 221, and the communication area of the overlapping area between the adjusting hole 232 and the water inlet hole 221 is always the cross-sectional area of the water inlet hole 221.

Specifically, as shown in fig. 4, in the process that the angle of the adjusting portion 231 rotates from 0 ° to 5 ° relative to the adjusting cavity 22a, the adjusting hole 232 is not communicated with the water outlet hole 222, that is, the adjusting hole 232 is only communicated with the water inlet hole 221, and cold water can enter the water passing cavity 231a through the water inlet hole 221 but cannot flow out through the water outlet hole 222. In the process, the cold water output flow of the valve assembly 20 is zero, that is, the cold water flow entering the cold and hot water mixing chamber 10a is zero, and hot water enters the cold and hot water mixing chamber 10a from the hot water port and then flows out from the mixed water outlet 13, so that the full-boiling hot water function of the thermostatic valve 100 is realized, and the full-boiling hot water function is suitable for the condition that the water heater 1 needs to be emptied in the initial installation, or the condition that the mixed water temperature needs to be guaranteed by full-boiling hot water when the hot water quantity of the water heater 1 is insufficient.

As shown in fig. 3, in the process that the rotation angle of the adjusting portion 231 relative to the adjusting cavity 22a is rotated from 5 ° to 120 °, the adjusting hole 232 communicates with the water outlet hole 222, and the cross-sectional area of the overlapping area of the adjusting hole 232 and the water outlet hole 222 gradually increases from zero to the cross-sectional area of the water outlet hole 222. In the process, the cold water enters the water passing chamber 231a from the water inlet 221, then flows out through the water outlet 222, and enters the hot and cold water mixing chamber 10a through the water outlet end 211b of the water passing channel 211, the cold water output flow of the valve assembly 20 is gradually increased, and the ratio of the cold water to the hot water in the hot and cold water mixing chamber 10a is gradually increased, so that the temperature of the mixed water is gradually reduced. Accordingly, the temperature of the mixed water can be adjusted by controlling the rotation angle of the adjusting part 231 with respect to the adjusting chamber 22a, thereby outputting constant temperature water of a preset temperature.

Further, as shown in fig. 1, a seal 24 is provided between the outer peripheral wall of the regulating portion 231 and the inner peripheral wall of the regulating chamber 22 a.

In one example, the outer circumferential wall of the adjustment portion 231 is provided with a sealing groove, and the sealing member 24 is configured in a ring shape and is installed in the sealing groove. Further, the sealing grooves are provided in plurality at intervals in the axial direction of the adjustment portion 231, and the sealing members 24 are provided in plurality and in one-to-one correspondence with the sealing grooves. Wherein, the material of the sealing member 24 may be polytetrafluoroethylene. This improves the sealing property between the outer peripheral wall of the adjustment portion 231 and the inner peripheral wall of the valve sleeve 22, thereby preventing cold water from leaking through the gap between the adjustment portion 231 and the valve sleeve 22.

Further, one of the outer peripheral wall of the valve sleeve 22 and the inner peripheral wall of the valve sleeve cavity 212 is provided with a positioning groove extending in the axial direction of the valve sleeve 22, and the other is provided with a positioning projection 25 in positioning engagement with the positioning groove. For example, the outer peripheral wall of the valve sleeve 22 may be provided with positioning projections 25, and the inner peripheral wall of the valve sleeve cavity 212 may be provided with positioning grooves, in which the positioning projections 25 are received. Further, the positioning protrusion 25 may be provided in plural at intervals in the circumferential direction of the valve sleeve 22, each positioning protrusion 25 extends in the axial direction of the valve sleeve 22, and the positioning groove is provided in plural and in one-to-one correspondence with the plural positioning protrusions 25. Thereby, the positioning effect of the valve sleeve 22 in the valve sleeve cavity 212 is ensured, and the rotation of the valve sleeve 22 relative to the valve sleeve cavity 212 is avoided.

In one embodiment, as shown in fig. 2-4, a partition 14 is provided in the hot and cold water mixing chamber 10a, and the partition 14 divides the hot and cold water mixing chamber 10a into a first flow passage 15 and a second flow passage 16. Wherein the first flow passage 15 is communicated with the hot water input port 12, the second flow passage 16 is communicated with the mixed water outlet 13, and the cold water input port 31 is communicated with both the first flow passage 15 and the second flow passage 16.

In one example, the partition 14 is configured in a flat plate shape, and divides the hot and cold water mixing chamber 10a into the first flow passage 15 and the second flow passage 16 in the up-down direction. An end of the first flow passage 15 remote from the hot water input port 12 (i.e., a right end of the first flow passage 15 in the drawing) communicates with an end of the second flow passage 16 remote from the mixed water outlet 13 (i.e., a right end of the second flow passage 16 in the drawing), and the cold water inlet 11 is located at a right end of the hot and cold water mixing chamber 10 a. As shown in fig. 3, after the hot water enters the first flow passage 15 from the hot water inlet 12, it flows toward the cold water inlet 11 in a left-to-right direction, and then is mixed with the cold water, and the mixed water flows toward the mixed water outlet 13 in a right-to-left direction along the second flow passage 16. Through set up separator 14 in hot and cold water mixing chamber 10a, on the one hand can be spaced apart from hot water input port 12 and mixed water export 13 in the rivers direction, directly flow out by mixed water export 13 behind avoiding hot water to get into hot and cold water mixing chamber 10a by hot water input port 12, on the other hand can prolong the route that hot water flows in hot and cold water mixing chamber 10a, and can be with hot water conservancy diversion to cold water entry 11 department so that hot water and cold water intensive mixing, thereby improve the mixed effect of cold water and hot water, be favorable to improving the constant temperature effect that the mixed water goes out the water.

In one embodiment, the opening directions of any two of the cold water inlet 11, the hot water inlet 12, and the mixed water outlet 13 are perpendicular to each other. For example, in the example shown in fig. 1, the opening direction of the cold water inlet 11 is set to the right, the opening direction of the hot water input port 12 is set to the downward, and the opening direction of the mixed water outlet 13 is set to the rearward. Therefore, the cold water and the hot water can form turbulent flow after entering the cold water and hot water mixing cavity 10a, and the mixed water can be further mixed in the process of flowing to the mixed water outlet 13, so that the mixing effect of the cold water and the hot water is further improved, and the constant temperature effect of the mixed water outlet is further improved.

In one embodiment, as shown in fig. 1 and 3, the thermostatic valve 100 further comprises a cold water input 30. The cold water input 30 has a cold water input port 31, a first cold water outlet 32 and a second cold water outlet 33, the cold water input 30 defining a first cold water flow path 34 communicating between the cold water input port 31 and the first cold water outlet 32, and a second cold water flow path 35 communicating between the cold water input port 31 and the second cold water outlet 33. The first cold water outlet 32 is communicated with the water inlet end 211a of the water passing flow passage 211. It will be appreciated that after cold water enters the cold water input 30 from the cold water input port 31, a portion of the cold water flows along the first cold water flow path 34 to the first cold water outlet 32 and then into the water flow path 211 of the valve assembly 20; another part of the cold water flows out through the second cold water outlet 33 along the second water flow passage 211, wherein the second cold water outlet 33 can be communicated with the cold water input end of the water heater 1 for delivering the cold water to be heated to the water heater 1.

Optionally, the opening directions of any two of the cold water input port 31, the first cold water outlet 32 and the second cold water outlet 33 are perpendicular to each other, wherein the opening direction of the second cold water outlet 33 is the same as that of the hot water input port 12, and the opening direction of the cold water input port 31 is the same as that of the mixed water outlet 13.

In one example, as shown in fig. 1, the second cold water outlet 33 is arranged in the same direction as the opening direction of the hot water input port 12 of the mixing section 10 and upward, so that the hot water input port 12 and the cold water input port 31 are connected to the hot water output terminal and the cold water input terminal, respectively, at the bottom of the body 200 of the water heater 1; the opening direction of the first cold water outlet 32 may be set to the left, the opening direction of the cold water inlet 11 of the mixing part 10 may be set to the right, and the cold water inlet 11 and the first cold water outlet 32 are respectively connected to the left and right ends of the water passing flow passage 211 of the valve assembly 20; the cold water input port 31 is opened in the same direction as the mixed water outlet port 13 of the mixing part 10 and is disposed rearward so that the cold water input pipe and the mixed water outlet pipe are connected to the cold water input port 31 and the mixed water outlet port 13, respectively, at the rear side of the thermostat valve 100. From this, the connection of the cold water input end and the hot water output end of the thermostatic valve 100 and the water heater 1 and other pipelines is convenient, and the opening direction of each opening is reasonable, which is favorable for saving the installation space of the thermostatic valve 100. Sealing members 24 may be disposed between the first cold water outlet 32 and the water inlet end 211a of the water flowing channel 211, and between the water outlet end 211b of the water flowing channel 211 and the cold water inlet 11 of the mixing portion 10.

Alternatively, the hot water inlet 12 is provided with a hot water input connection 51, the mixed water outlet 13 is provided with a mixed water output connection 52, the cold water inlet 31 is provided with a cold water input connection 53, and the second cold water outlet 33 is provided with a cold water output connection 54.

In one example, the hot water input connector 51 includes a positioning plug 511 and a nut 512, the positioning plug 511 is inserted into the hot water input port 12, the nut 512 is screwed with the outer peripheral wall of the positioning plug 511, and the mixed water output connector 52, the cold water input connector 53 and the cold water output connector 54 may have the same structure as the hot water input connector 51. Further, seals 24 may be provided between the hot water input fitting 51 and the hot water input port 12, between the mixed water output fitting 52 and the mixed water outlet 13, between the cold water input fitting 53 and the cold water input port 31, and between the cold water output fitting 54 and the second cold water outlet 33.

In one embodiment, the thermostatic valve 100 further comprises a drive portion 40, the drive portion 40 comprising a motor 41, a bracket 42 and a mounting plate 43. Specifically, the output end of the motor 41 is in transmission connection with the valve core 23, the motor 41 is mounted on the bracket 42, the bracket 42 is connected to the mounting plate 43 through a first fastener, the housing 21 is provided with a mounting end plate, and the mounting plate 43 is connected to the mounting end plate through a second fastener.

In one example, the upper and lower edges of the mounting plate 43 have extensions, the two extensions are respectively provided with first mounting holes 431, the two first fasteners are arranged in one-to-one correspondence with the two first mounting holes 431, and the first fasteners pass through the first mounting holes 431 to be in connection and fit with screw holes on the bracket 42. The mounting plate 43 is further provided with two second mounting holes 432, the two second mounting holes 432 are two and are respectively arranged at two top corners of the mounting plate 43, and the two second fasteners are arranged in one-to-one correspondence with the two second mounting holes 432. The rear end of the valve housing 212 of the housing 21 is provided with a mounting end plate, the mounting end plate is provided with screw holes corresponding to the two second mounting holes 432 one to one, and the second fastening member passes through the second mounting holes 432 and is in threaded connection with the screw holes on the mounting end plate. Wherein, the first fastener and the second fastener can be screws.

In one embodiment, the thermostatic valve 100 further comprises a control device electrically connected to the motor 41 for controlling the direction and the angle of rotation of the motor 41.

Optionally, the thermostatic valve 100 further comprises a flow sensor 61, a first temperature sensor 62 and a second temperature sensor 63 electrically connected to the control means. Wherein, the flow sensor 61 is used for detecting the flow of the cold water entering the water inlet end 211a of the water passing flow channel 211, the first temperature sensor 62 is used for detecting the temperature of the cold water entering the water inlet end 211a of the water passing flow channel 211, and the second temperature sensor 63 is used for detecting the temperature of the mixed water in the cold and hot water mixing chamber 10 a.

In one example, the flow sensor 61 may be provided at the cold water input 30 and at the cold water input 31. The flow sensor 61 may adopt various technical solutions known by those skilled in the art now and in the future, for example, the flow sensor 61 may include a rotor assembly and a hall sensor, the rotor assembly is disposed at the cold water input port 31 of the cold water input portion 30, and the hall sensor detects the rotation speed of the rotor assembly to detect the flow rate of the cold water entering the cold water input port 31. A first temperature sensor 62 may be provided at the cold water input 30 for detecting the temperature of the cold water passing through the cold water input 30. A second temperature sensor 63 may be provided at the mixed water outlet 13 of the mixing portion 10 for detecting the temperature of the mixed water after mixing in the cold and hot water mixing chamber 10 a.

A control method of the thermostat valve 100 according to an embodiment of the present application is described below. When the cold water input interface is connected with cold water, the flow sensor sends detected flow data of the cold water to the control device, the first temperature sensor 62 sends detected temperature data of the cold water to the control device, and the control device controls the motor 41 to rotate to an initial angle according to the temperature of the cold water, the temperature of the hot water and the pre-adjusted temperature of mixed water so as to adjust the initial mixing proportion of the cold water and the hot water. The second temperature sensor 63 sends temperature data of the mixed water in the hot and cold water mixing chamber 10a to the control device, and when the temperature of the mixed water deviates from the preset temperature, the control device adjusts the rotation angle of the motor 41 again (positive regulation or negative regulation) to adjust the temperature of the mixed water to the preset temperature.

In a second aspect, the present embodiment provides a water heater 1, where the water heater 1 includes a thermostat valve 100 according to the present embodiment. Wherein, the water heater 1 can be a gas water heater 1 or an electric water heater 1.

Other configurations of the water heater 1 of the above embodiment can be adopted by various technical solutions known to those skilled in the art now and in the future, and will not be described in detail here.

According to the thermostatic valve 100 of the embodiment of the application, the flow of cold water entering the cold and hot water mixing cavity 10a can be adjusted by controlling the rotation angle of the valve core 23 relative to the valve sleeve 22, so that the mixing proportion of the cold water and the hot water in the cold and hot water mixing cavity 10a is adjusted, and the thermostatic valve has the advantages of simple structure, convenience in adjustment and the like, and the valve core 23 and the valve sleeve 22 are high in matching degree, accurate in control of the mixing proportion of the cold and hot water, constant in output temperature of mixed water and the like.

In the description of the present specification, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can include, for example, fixed connections, removable connections, or integral parts; the connection can be mechanical connection, electrical connection or communication; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

The above disclosure provides many different embodiments or examples for implementing different structures of the application. The components and arrangements of specific examples are described above to simplify the present disclosure. Of course, they are merely examples and are not intended to limit the present application. Moreover, the present application may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed.

The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive various changes or substitutions within the technical scope of the present application, and these should be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.

Claims (17)

1. A thermostatic valve, comprising:

the valve component comprises a valve sleeve and a valve core which are coaxially arranged, an adjusting cavity is limited in the valve sleeve, the valve sleeve is provided with a water inlet hole and a water outlet hole which are communicated with the adjusting cavity and are arranged at intervals, the water outlet hole is communicated with a cold and hot water mixing cavity of the thermostatic valve, and at least part of the valve core is rotatably arranged in the adjusting cavity and is used for adjusting the flow of water flowing from the water inlet hole to the water outlet hole.

2. The thermostat valve as claimed in claim 1, wherein the valve body has an adjustment portion configured as a hollow structure to define a water passing chamber, a peripheral wall of the adjustment portion being provided with an adjustment hole communicating with the water passing chamber, the adjustment portion being rotatably provided in the adjustment chamber such that the adjustment hole communicates with at least one of the water inlet hole and the water outlet hole.

3. The thermostatic valve according to claim 2, wherein the adjustment hole is always in communication with the water inlet hole and is in communication with or blocked from the water outlet hole during rotation of the adjustment part relative to the adjustment chamber.

4. A thermostat valve according to claim 2, characterized in that the peripheral wall of the adjusting part is configured as a cylindrical surface.

5. The thermostatic valve according to any one of claims 1-4, wherein the valve assembly further comprises a housing defining a flow passage therein, the valve housing being disposed through the flow passage, wherein the inlet opening is in communication with an inlet end of the flow passage, the outlet opening is in communication with an outlet end of the flow passage, and the outlet end of the flow passage is in communication with the hot and cold water mixing chamber.

6. The thermostatic valve according to claim 5, wherein the housing is provided with a valve housing cavity, the valve housing being located within the valve housing cavity, wherein an axial direction of the valve housing cavity is perpendicular to an axial direction of the flow passage.

7. The thermostat valve as claimed in claim 6, characterized in that a seal is provided between an outer circumferential wall of the spool and an inner circumferential wall of the regulating chamber.

8. A thermostatic valve according to claim 6, characterized in that one of the outer peripheral wall of the valve sleeve and the inner peripheral wall of the valve sleeve cavity is provided with a positioning groove extending in the axial direction of the valve sleeve, and the other is provided with a positioning projection in positioning engagement with the positioning groove.

9. The thermostat valve of claim 5, further comprising:

the mixing portion is limited with the hot and cold water mixing chamber, the hot and cold water mixing chamber has cold water inlet, hot water input port and mixes the water outlet, cold water inlet with the play water end intercommunication of water runner.

10. The thermostatic valve according to claim 9 wherein a divider is disposed within the hot and cold water mixing chamber, said divider dividing said hot and cold water mixing chamber into a first flow passage and a second flow passage, wherein said first flow passage communicates with said hot water input port, said second flow passage communicates with said mixed water outlet, and said cold water input port communicates with both said first flow passage and said second flow passage.

11. The thermostat valve of claim 9, wherein the opening directions of any two of the cold water inlet, the hot water inlet, and the mixed water outlet are perpendicular to each other.

12. The thermostat valve of claim 9, further comprising:

the cold water input part is provided with a cold water input port, a first cold water outlet and a second cold water outlet, the cold water input part is limited to be communicated with a first cold water flow path between the cold water input port and the first cold water outlet and a second cold water flow path between the cold water input port and the second cold water outlet, and the first cold water outlet is communicated with the water inlet end of the water flowing channel.

13. The thermostat valve of claim 12, wherein any two of the cold water input port, the first cold water outlet, and the second cold water outlet are open in directions perpendicular to each other, wherein the second cold water outlet is open in the same direction as the hot water input port, and wherein the cold water input port is open in the same direction as the mixed water outlet.

14. The thermostat valve of claim 5, further comprising a drive portion, the drive portion comprising:

the output end of the motor is in transmission connection with the valve core;

the motor is mounted on the bracket;

a mounting plate, the bracket connected to the mounting plate by a first fastener, the mounting plate connected to the housing of the valve assembly by a second fastener.

15. The thermostat valve of claim 14, further comprising:

and the control device is electrically connected with the motor and is used for controlling the rotation direction and the rotation angle of the motor.

16. The thermostat valve of claim 15, further comprising a flow sensor electrically connected to the control device for sensing the flow of cold water into the inlet end of the flow passage, a first temperature sensor for sensing the temperature of cold water entering the inlet end of the flow passage, and a second temperature sensor for sensing the temperature of mixed water in the mixing chamber.

17. A water heater characterized in that it comprises a thermostatic valve according to any one of claims 1-16.

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