CN218992431U - Water inlet valve assembly and water heater - Google Patents

Abstract

The utility model discloses a water inlet valve assembly and a water heater, wherein the water inlet valve assembly comprises a first valve body, a water inlet cavity, a water inlet connector and a first water outlet connector are formed in the first valve body, the water inlet connector is communicated with the water inlet cavity, the water inlet connector is used for being connected with a first water servo assembly, and the first water outlet connector is communicated with a water exchange connector of a domestic water plate, so that water in a water inlet pipeline flows into the water inlet connector through the first water servo assembly and flows out of the first water outlet connector. According to the utility model, the water inlet valve assembly is integrated with the water inlet interface which can be used for connecting the first water servo assembly, the water servo can be directly connected with the water inlet valve to control the water inlet flow of the water heater according to the needs, the use of copper pipes is reduced, the production cost is reduced, the occupied space is small, the installation is simple, and the water leakage risk is reduced.

Description

Water inlet valve assembly and water heater

Technical Field

The utility model relates to the field of gas water heaters, in particular to a water inlet valve assembly and a water heater.

Background Art

At present, the performance of traditional gas water heaters has the defects of slow constant temperature speed, large fluctuation of constant temperature when starting and stopping, and great influence of water temperature fluctuation or water flow fluctuation on water outlet temperature. At present, water servo technology can solve this problem by controlling the water inlet flow of the water heater, but the water servo is installed independently, and each water servo requires two copper pipes, which takes up a large space, has high manufacturing cost, and is complicated to install and has many risk points of water leakage.

Utility Model Content

The main purpose of the utility model is to provide a water inlet valve assembly and a water heater integrated with a water servo function, which occupy a small space, have a low production cost, are simple to install, and have a reduced risk of water leakage.

To achieve the above object, the utility model provides a water inlet valve assembly, comprising:

The first valve body is formed with a water inlet cavity, and a water inlet interface and a first water outlet interface connected to the water inlet cavity. The water inlet interface is used to connect to the first water servo component, and the first water outlet interface is used to connect to the domestic water board exchange interface, so that the water flow in the water inlet pipeline flows into the water inlet interface through the first water servo component and flows out from the first water outlet interface.

In one embodiment, the water inlet interface and the first water outlet interface are both located on the front side of the first valve body, and the water inlet interface is located below the first water outlet interface.

In one embodiment, the first water servo component is further included, and the first water servo component includes:

A first connecting member, formed with a first water inlet channel, and a first water inlet and a first water outlet communicated with the first water inlet channel, wherein the first water inlet is provided at the lower side of the first connecting member and is used to communicate with the water inlet pipeline, and the first water outlet is communicated with the water inlet interface;

a first valve core, movably disposed in the first water inlet channel to adjust the water flow rate of the first water inlet channel; and

a first motor, which is disposed at an end of the first connecting member opposite to the first water outlet and is drivingly connected to the first valve core; or

The first water servo assembly includes a solenoid valve, the water inlet end of the solenoid valve is used to connect to the water inlet pipeline, and the water outlet end of the solenoid valve is connected to the water inlet interface; or,

The first water servo assembly includes a proportional valve, the water inlet end of the proportional valve is used to connect to the water inlet pipeline, and the water outlet end of the proportional valve is connected to the water inlet interface; or,

The first water servo assembly includes a temperature-sensitive valve, a water inlet end of the temperature-sensitive valve is used to connect to the water inlet pipeline, and a water outlet end of the temperature-sensitive valve is connected to the water inlet interface.

In one embodiment, the first valve body is further formed with a second water outlet interface connected to the water inlet chamber, and the second water outlet interface is used to connect to a second water servo component so that the water flow in the water inlet chamber flows to the domestic hot water outlet through the second water servo component.

In one embodiment, the second water outlet port is located on one side of the first valve body in the lateral direction.

In one embodiment, the second water servo assembly is further included, and the second water servo assembly includes:

A second connecting member is formed with a second water inlet channel, and a second water inlet and a second water outlet communicated with the second water inlet channel, the second water inlet is communicated with the second water outlet interface, and the second water outlet is arranged at the lower side of the second connecting member and is used to communicate with the domestic hot water outlet;

a second valve core, movably disposed in the second water inlet passage to adjust the water flow rate of the second water inlet passage; and

The second motor is arranged at an end of the second connecting member opposite to the second water inlet and is drivingly connected to the second valve core.

In one embodiment, it further includes a second valve body arranged on one side of the first valve body in the lateral direction, the second valve body forms a return water chamber, and a return water interface and a heating water plate exchange interface communicated with the return water chamber.

In one embodiment, a water replenishment valve interface is formed at the lower end of the first valve body, and the water replenishment valve interface is used to connect a water replenishment valve so that the water inlet chamber and the water return chamber can be communicated through the water replenishment valve.

In one embodiment, the water supply valve comprises:

The shell is formed with a water replenishment cavity, and the upper end of the shell is formed with a water replenishment port communicating with the water replenishment cavity and the water return cavity;

A water replenishment pipe is inserted at the upper end of the shell and is provided with a water replenishment channel in the up-down direction, wherein the upper end of the water replenishment channel is connected to the water inlet cavity, and the lower end of the water replenishment channel is connected to the water replenishment cavity;

a water replenishment valve core, movably disposed in the water replenishment chamber along the up-down direction, so as to have a first valve position for moving upward to block the lower end of the water replenishment channel, and a second valve position for opening the lower end of the water replenishment channel; and

The operating part is movably arranged at the lower end of the shell and is drivingly connected to the water replenishment valve core, and is used to drive the water replenishment valve core to switch between the first valve position and the second valve position.

In one embodiment, the domestic water board change interface is also formed on the second valve body, and the domestic water board change interface and the heating water board change interface are both located on the rear side of the second valve body, and the domestic water board change interface is located above the heating water board change interface.

In one embodiment, a heating water pump is further included, wherein the water inlet end of the heating water pump is used to connect to a heating return water pipeline, and the water outlet end of the heating water pump is connected to the return water interface, and the return water interface is arranged on the side of the second valve body opposite to the first valve body.

In one embodiment, a zero-cooling water pump is further included, wherein the water inlet end of the zero-cooling water pump is connected to the first water outlet interface, and the water outlet end of the zero-cooling water pump is connected to the domestic water board exchange interface.

In one embodiment, a flow sensor interface and/or a temperature sensor interface communicating with the water inlet chamber is provided on the first valve body.

To achieve the above object, the utility model also provides a water heater, including the water inlet valve assembly as described above.

The water inlet valve assembly provided by the utility model includes a first valve body, the first valve body is formed with a water inlet cavity, and a water inlet interface and a first water outlet interface connected to the water inlet cavity, the water inlet interface is used to connect to the first water servo component, and the first water outlet interface is used to connect to the domestic water board change interface, so that the water flow in the water inlet pipeline flows into the water inlet interface through the first water servo component and flows out from the first water outlet interface. In the embodiment provided by the utility model, the water inlet valve assembly is integrated with a water inlet interface that can be used to connect to the first water servo component, and the water servo can be directly connected to the water inlet valve to control the water inlet flow of the water heater as needed, reduce the use of copper pipes, reduce production costs, and occupy a small space, simple installation, reduce the leakage points generated during assembly, thereby reducing the risk of leakage.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be 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 the structures shown in these drawings without paying creative work.

FIG1 is a partial three-dimensional structural diagram of an embodiment of a water heater provided by the utility model;

FIG2 is a schematic diagram of the three-dimensional structure of the first embodiment of the water inlet valve assembly in FIG1 ;

FIG3 is a rear elevational view of the water inlet valve assembly in FIG2 ;

Fig. 4 is a cross-sectional view of the A-A position in Fig. 3;

FIG5 is a schematic diagram of the three-dimensional structure of the second embodiment of the water inlet valve assembly in FIG1 ;

FIG6 is a front elevational view of the water inlet valve assembly in FIG5 ;

Fig. 7 is a cross-sectional view of the B-B portion in Fig. 6;

FIG8 is a schematic diagram of the three-dimensional structure of the third embodiment of the water inlet valve assembly in FIG1 ;

FIG. 9 is a schematic diagram of the three-dimensional structure of the water supply valve in FIG. 2 .

Description of Figure Numbers:

The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings.

DETAILED DESCRIPTION

It should be noted that if a directional indication is involved in the embodiments of the present invention, the directional indication is only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and/or" appearing in the full text is to include three parallel solutions. Taking "A and/or B" as an example, it includes solution A, or solution B, or a solution that satisfies both A and B.

Please refer to FIG1 . The utility model provides a water heater. The water heater may be a gas water heater dedicated to providing domestic hot water, or a wall-mounted boiler for providing domestic hot water and hot water for heating. Please refer to FIG2 to FIG7 . The utility model also provides a water inlet valve assembly 100 for the water heater. The water inlet valve assembly 100 is used to introduce cold water in the water inlet pipeline into the water heater, so that the water heater provides heated domestic hot water and/or hot water for heating. The water heater includes a water heater housing 200, and the water heater housing 200 is used to accommodate water heater components such as the water inlet valve assembly 100, a heat exchanger, a combustion chamber, and connecting pipelines.

In the prior art, water heaters with water servo functions solve the defects of traditional gas water heaters such as slow constant temperature speed, large start-stop constant temperature fluctuations, and large impact of water temperature fluctuations or water flow fluctuations on water outlet temperature by controlling the water inlet flow of the water heater. However, its water servo module is installed independently, and each water servo module requires two copper pipes, which occupies a large space, has high manufacturing costs, is complex to install, and has many risk points of water leakage.

To solve the above technical problems, please refer to FIG. 1 and FIG. 2 . The water inlet valve assembly 100 provided by the utility model includes a first valve body 10, wherein the first valve body 10 is formed with a water inlet cavity 11, and a water inlet interface 12 and a first water outlet interface 13 connected to the water inlet cavity 11. The water inlet interface 12 is used to connect the first water servo assembly 30, and the first water outlet interface 13 is used to connect the domestic water board exchange interface 22, so that the water flow in the water inlet pipeline flows into the water inlet interface 12 through the first water servo assembly 30, and flows out from the first water outlet interface 13. In this embodiment, the water inlet pipeline points to the pipeline that provides tap water to the water heater, so that the water heater can provide domestic hot water and/or hot water for heating after heating. The domestic water board exchange interface 22 is connected to the water inlet end of the heat exchange pipeline, so that the water flow introduced from the water inlet valve assembly 100 flows through the heat exchange pipeline through the heat exchanger of the water heater, and flows out from the domestic water end after being heated for use by users. The first water inlet servo assembly refers to a functional component with a water servo function, which can adjust the water inlet flow rate as needed. In the embodiment provided by the utility model, the flow direction of the water flow is as follows: the tap water flowing into the water inlet pipeline is sent to the first water servo assembly 30 to adjust the water flow rate, and flows into the water inlet cavity 11 from the water inlet interface 12, and then flows out from the first water outlet interface 13, and flows to the domestic water board exchange interface 22, and then flows through the heat exchanger of the water heater through the heat exchange pipeline, and flows out from the domestic water end after being heated for use by users. Preferably, the domestic water board exchange interface 22 is provided with a flow limiting ring, and the flow limiting ring controls the water flow rate flowing to the heat exchanger within a specific threshold range, and the specific threshold range can be set according to the power of the water heater, for example, 20L is set for a 32kw whole machine, 18L is set for a 26kw whole machine, etc. In this way, the water supply does not exceed the maximum value that the heat exchanger can load, avoiding the situation where the water outlet end temperature is too low or the water heater is overloaded, thereby improving the user experience and the service life of the water heater.

In this embodiment, the water inlet valve assembly 100 integrates the water inlet interface 12 that can be used to connect the first water servo component 30. The first water servo component 30 can be directly connected to the water inlet valve to control the water inlet flow of the water heater as needed, reduce the use of copper pipes, make the internal structure of the water heater more simple and beautiful, reduce production costs, and occupy less space, simple installation, reduce leakage points generated during assembly, thereby reducing the risk of leakage.

Please continue to refer to Figures 1 to 3. The water inlet interface 12 and the first water outlet interface 13 are both located on the front side of the first valve body 10, and the water inlet interface 12 is located below the first water outlet interface 13. It should be noted that in the present utility model, the description of directions such as up and down, horizontal, front and back, etc., is only for the state of the water heater after installation, and does not include the state of the water heater during production, assembly, transportation or debugging. In this embodiment, the water heater is installed on a mounting surface such as a wall, and the side facing the mounting surface is the rear side, and the side away from the mounting surface is the front side. The up and down direction refers to a direction roughly parallel to the gravity, or a direction that forms a certain angle with the gravity direction, and the angle is not greater than 45 degrees. The horizontal direction refers to a direction roughly perpendicular to the up and down direction.

Further, please continue to refer to Figures 1 and 2. The water inlet interface 12 and the water outlet interface are both located on the front side of the first valve body 10. In this way, the water inlet valve assembly 100 is located at the rear position in the water heater shell 51, and the front is empty for accommodating the first water inlet servo assembly and the zero-cold water pump 70 or the diversion pipeline and other components, making the installation operation more convenient.

In this embodiment, the water heater can be a gas water heater dedicated to domestic hot water. In another embodiment, the water heater also provides hot water for heating, and is a wall-mounted boiler integrated with domestic hot water supply and heating water supply. Specifically, please continue to refer to Figures 1 to 3. The water inlet valve assembly 100 also includes a second valve body 20 arranged on one side of the first valve body 10 in the lateral direction, and the second valve body 20 forms a return water chamber 21, and a return water interface 24 and a heating water plate exchange interface 23 connected to the return water chamber 21. In this embodiment, the first valve body 10 and the second valve body 20 can be arranged as a whole, or they can be arranged separately and then assembled. Preferably, the first valve body 10 and the second valve body 20 are arranged as a whole, so that it is convenient to produce and install, and the water heater assembly is simpler, reducing the production cost. The return water interface 24 is used for the return water flowing into the heating water, and the heating water plate exchange interface 23 is used to connect the heat exchange pipeline, so that the heating water flows through the heat exchange pipeline through the heat exchanger of the water heater and is heated. The water flow of the heating water is as follows: the return water of the heating is driven by the heating water pump 60 to flow into the return water interface 24, flows through the return water chamber 21, and flows from the heating plate exchange interface to the heat exchange pipeline, and after being heated by the heat exchanger of the water heater, it flows to the indoor heating terminal such as the radiator or the floor heating pipeline, and after dissipating the heat at the heating terminal, it flows back to the return water interface 24 to enter the next cycle.

In one embodiment, please continue to refer to Figures 1 and 8. The water heater is a zero-cold water water heater, and the water inlet valve assembly 100 also includes a zero-cold water pump 70. The water inlet end of the zero-cold water pump 70 is connected to the first water outlet interface 13, and the water outlet end of the zero-cold water pump 70 is connected to the domestic water board exchange interface 22. The specific structure of the zero-cold water pump 70 belongs to the prior art and will not be repeated. It can be understood that the zero-cold water pump 70 usually also has a return water end, which is used to communicate with the zero-cold water return pipe and is used to introduce the water flow in the zero-cold water return pipe into the domestic water board exchange interface 22. In this way, when the user uses domestic water, the cold water in the domestic water pipeline first flows back to the zero cold water pump 70 through the zero cold water return pipe, and is drawn into the domestic water plate exchange interface 22 together with the water flow in the water inlet chamber 11, flows into the heat exchange pipeline, and is heated by the heat exchanger of the water heater before flowing to the end of the domestic water, so that the user can basically have no cold water flowing out every time he uses hot water, thereby improving the user's experience. In this embodiment, the first water outlet interface 13 is located on the front side of the first valve body 10, so the zero cold water pump 70 is also arranged at the front position of the water heater, which is convenient for assembly, and the water inlet valve assembly 100 is compact in structure, which is conducive to controlling the external dimensions of the water heater. It can be understood that the first water outlet interface 13 can be set as a common plug-in or card-connected interface. Preferably, the water inlet end of the zero cold water pump 70 is card-connected to the first water outlet interface 13 by means of a pin, so that the zero cold water pump can be easily replaced and replaced and repaired. Alternatively, when the water heater does not need the zero cold water function, a diversion pipeline is used to replace the zero cold water pump 70 to improve the expansion performance of the water heater.

On the basis of the above embodiment, please continue to refer to Figures 2 and 3. The lower end of the first valve body 10 forms a water replenishment valve 50 interface 15, and the water replenishment valve 50 interface 15 is used to connect the water replenishment valve 50, so that the water inlet chamber 11 and the water return chamber 21 can be communicated through the water replenishment valve 50. It can be understood that the heating water may have excessive water volume during the circulation process, which requires pressure relief, or insufficient water volume may require water replenishment. Therefore, it is necessary to set the water replenishment valve 50 so that the water return chamber 21 and the water inlet chamber 11 can be communicated, thereby realizing the function of pressure relief or water replenishment of the heating water circulation water circuit.

The specific structure of the water replenishment valve 50 is not limited, as long as it can achieve the connection between the return water chamber 21 and the water inlet chamber 11 as needed. Preferably, the water replenishment valve 50 is inserted into the water inlet valve assembly 100 from the lower end of the water inlet valve assembly 100. Compared with the traditional oblique insertion water replenishment valve 50 and the water replenishment valve 50 inserted from the front and then bent at a right angle, the space occupied by the water replenishment valve 50 on the front is reduced. In this way, on the one hand, there is more free space in the front area inside the water heater housing 200, which is convenient for placing the first water servo assembly 30 and the zero-cold water pump 70 and other components. On the other hand, since the water inlet interface 12 is arranged on the front side of the first valve body 10, when the water heater is installed, the operation of connecting the water inlet pipeline to the water inlet valve assembly 100 will not be blocked by the water replenishment valve 50, which reduces the difficulty of installation and improves the installation efficiency.

In a preferred embodiment, please refer to FIG. 4 and FIG. 9 , the water replenishment valve 50 includes a housing 51, a water replenishment pipe 54, a water replenishment valve core 56 and an operating part 57. Specifically, the housing 51 is formed with a water replenishment chamber 52, and the upper end of the housing 51 is formed with a water replenishment port 53 connecting the water replenishment chamber 52 and the water return chamber 21. The water replenishment pipe 54 is inserted at the upper end of the housing 51, and the water replenishment pipe 54 is penetrated with a water replenishment channel 55 in the up-down direction. The upper end of the water replenishment channel 55 is connected to the water inlet chamber 11, and the lower end of the water replenishment channel 55 is connected to the water replenishment chamber 52. The water replenishment valve core 56 is movably arranged in the water replenishment chamber 52 in the up-down direction, so as to have a first valve position of moving up to block the lower end of the water replenishment channel 55, and a second valve position of opening the lower end of the water replenishment channel 55. The operating part 57 is movably disposed at the lower end of the housing 51 and is drivingly connected to the water supply valve core 56, and is used to drive the water supply valve core 56 to switch between the first valve position and the second valve position. The specific form of the operating part 57 can be multiple, for example, it can be a handle that can be pushed up or pulled down, or it can be a knob, the knob is screwed to the lower end of the housing 51, and is connected to the lower end of the water supply valve core 56, so that when the user operates the knob to rotate upward, the knob moves up relative to the housing 51, and drives the water supply valve core 56 to move up to the first valve position, and when the user operates the knob to rotate downward, the knob moves down relative to the housing 51, and drives the water supply valve core 56 to move down to the second valve position, so that the valve position switching of the water supply valve core 56 is realized, and the knob is easy and reliable to operate, not easy to fall off, and reduces the possibility of misoperation.

The operation of water replenishment using the water replenishment valve 50 provided in this embodiment is as follows: close the water outlet of the domestic water terminal so that the water pressure of the water inlet chamber 11 is greater than that of the water return chamber 21, operate the operating part 57, move the water replenishment valve core 56 from the first valve position to the second valve position, and the water flow in the water inlet chamber 11 automatically flows into the water return chamber 21 under the action of the pressure difference, completing the water replenishment operation of the heating circulation water circuit. Then, operate the operating part 57 to make the water replenishment valve core 56 return from the second valve position to the first valve position. The operation of pressure relief using the water supply valve 50 provided in this embodiment is as follows: open the end of the domestic water outlet so that the water pressure of the water inlet chamber 11 is less than that of the water return chamber 21, operate the operating part 57, so that the water supply valve core 56 moves from the first valve position to the second valve position, and the water in the water return chamber 21 automatically flows to the water inlet chamber 11 under the action of the pressure difference, and flows out from the end of the domestic water until the water pressure in the heating circulation water circuit reaches a preset value, completing the pressure relief operation on the heating circulation water circuit. Then, operate the operating part 57 to make the water supply valve core 56 return from the second valve position to the first valve position.

The water replenishment valve 50 provided in this embodiment is in a vertical shape extending in the vertical direction as a whole, and is inserted into the first valve body 10 and the second valve body 20 from the bottom. Compared with the traditional oblique insertion water replenishment valve 50 and the water replenishment valve 50 inserted from the front and then bent at a right angle, the space occupied by the water replenishment valve 50 on the front is reduced. In this way, on the one hand, there is more free space in the front area inside the water heater housing 200, which is convenient for placing the first water servo assembly 30 and the zero-cold water pump 70 and other components. On the other hand, since the water inlet interface 12 is arranged on the front side of the first valve body 10, when the water heater is installed, the operation of connecting the water inlet pipeline to the water inlet valve assembly 100 will not be blocked by the water replenishment valve 50, which reduces the difficulty of installation and improves the installation efficiency.

In order to further improve the compactness of the water inlet valve assembly 100 and facilitate the arrangement of pipelines, in a preferred embodiment, please continue to refer to Figures 3 and 6, the second valve body 20 is also formed with the domestic water board exchange port 22, the domestic water board exchange port 22 and the heating water board exchange port 23 are both located at the rear side of the second valve body 20, and the domestic water board exchange port 22 is located above the heating water board exchange port 23. In this way, the heat exchange pipeline is connected to the water inlet valve assembly 100 from the rear side, so that the internal components of the water heater are arranged compactly and reasonably, the length of the heat exchange pipeline is reduced, and the heat exchange pipeline will not block the operation of the first water inlet servo or zero cooling water pump 70 installed on the front side, the assembly operation is simpler, and the assembly efficiency and quality are improved.

In a preferred embodiment, referring to FIG. 1 , the water inlet valve assembly 100 further includes a heating water pump 60, the water inlet end of the heating water pump 60 is used to connect to the heating water return pipeline, and the water outlet end of the heating water pump 60 is connected to the water return interface 24, and the water return interface 24 is arranged on the side of the second valve body 20 opposite to the first valve body 10. In this way, the heating water pump 60 is arranged on one side of the water inlet valve assembly 100 in the lateral direction, so that the internal structure of the water heater is more compact, ensuring that enough functional components can be arranged within the size range of the water heater, improving the performance of the water heater, and controlling the size of the water heater at the same time, improving the user experience.

The water inlet interface 12 can be set as a common plug-in or card-connected interface. Preferably, the first water inlet servo is card-connected to the water inlet interface 12 by means of a pin, so that the first water servo component 30 can be easily replaced and replaced and repaired. Or when the water heater does not need the water inlet servo function, a diversion pipeline is used to replace the first water inlet servo to improve the expansion performance of the water heater.

In one embodiment, the water inlet interface 12 is also provided with a flow limiting ring, which controls the total flow flowing into the first water servo component 30 within a first preset value, and the zero position of the first water servo component 30 is set to the middle value of the first preset value. In this way, the flow of the first water servo component 30 changes most obviously with the position of the first valve core 35, and the first water servo component 30 has the best regulating effect on the water flow.

There is no limitation on the specific type or structure of the first water servo component 30, as long as it can realize the water inlet servo of the water heater, control the water flow rate according to the inlet water temperature, inlet water pressure and/or gas supply conditions, and realize fast and accurate temperature control and start-up control of domestic water, so as to improve the user's water use experience.

In one embodiment, please continue to refer to Figures 5 to 8. The water inlet valve assembly 100 also includes the first water servo assembly 30, which includes a first connector 31, a first valve core 35 and a first motor 36. The first connector 31 is formed with a first water inlet channel 32, and a first water inlet 33 and a first water outlet 34 connected to the first water inlet channel 32. The first water inlet 33 is arranged at the lower side of the first connector 31 for connecting the water inlet pipeline, and the first water outlet 34 is connected to the water inlet interface 12. It can be understood that the first connector 31 has an assembly structure that is mutually compatible with the water inlet interface 12 at one end of the first water outlet 34, so as to realize the convenient installation and disassembly of the first water inlet servo assembly shown. The first water inlet 33 is located at the lower side of the first connector 31, so that the water inlet pipeline can be connected to the water inlet valve assembly 100 from below, which conforms to the general installation habits of the water heater, facilitates hiding the water heater pipe, and makes the water heater more beautiful after installation.

It can be understood that in one embodiment, the water replenishment valve 50 is inserted into the water inlet valve assembly 100 from below and is located behind the first water inlet 33. In this way, on the one hand, there is more free space in the front area inside the water heater housing 200, which is convenient for placing the first water servo assembly 30 and the zero-cold water pump 70 and other components. On the other hand, since the water inlet interface 12 is arranged on the front side of the first valve body 10, when the water heater is installed, the operation of connecting the water inlet pipeline to the water inlet valve assembly 100 will not be blocked by the water replenishment valve 50, which reduces the difficulty of installation and improves the installation efficiency. The first valve core 35 is movably arranged in the first water inlet channel 32 to adjust the water flow of the first water inlet channel 32.

The specific structure and activity mode of the first valve core 35 are not limited, as long as the water volume of the first water inlet servo assembly can be adjusted by controlling the activity of the first valve core 35. In one embodiment, the first valve core 35 is movably arranged in the first water inlet channel 32 along the front-to-back direction, so that the first connecting member 31 is arranged in a long shape extending along the front-to-back direction as a whole, so that there is enough space to arrange the first water inlet 33. The first motor 36 is arranged at the end of the first connecting member 31 opposite to the first water outlet 34, and is drivingly connected to the first valve core 35. It can be understood that the transmission structure between the first motor 36 and the first valve core 35 can be set according to the activity mode of the first valve core 35. The first motor 36 can be controlled to adjust the water flow rate of the first water servo assembly 30 according to the water temperature, water pressure and/or gas supply conditions, thereby improving the performance of the water heater. In this embodiment, the direction of water flow is as follows: water flows from the water inlet pipe into the first water inlet channel 32 through the first water inlet 33, the activity of the first valve core 35 controls the water flow of the first water servo assembly 30, thereby controlling the total flow of domestic water of the water heater, and the water with controlled flow flows from the first water outlet 34 to the water inlet interface 12 and then flows into the water inlet chamber 11, thereby realizing hot water supply for domestic water.

The first water servo assembly 30 can also be replaced with other forms to improve the expansion of the water heater. In one embodiment, the first water servo assembly 30 includes a solenoid valve, the water inlet end of the solenoid valve is used to connect to the water inlet pipeline, and the water outlet end of the solenoid valve is connected to the water inlet interface 12. The solenoid valve can be controlled to adjust the water flow rate of the first water servo assembly 30 according to the water temperature, water pressure and/or gas supply conditions, thereby improving the constant temperature and other performance of the water heater.

In another embodiment, the first water servo assembly 30 includes a proportional valve, the water inlet end of the proportional valve is used to connect to the water inlet pipeline, and the water outlet end of the proportional valve is connected to the water inlet interface 12. The proportional valve can be controlled to adjust the water flow rate of the first water servo assembly 30 according to the water temperature, water pressure and/or gas supply conditions, thereby improving the thermostatic performance of the water heater.

In another embodiment, the first water servo assembly 30 includes a temperature-sensitive valve, in which a temperature-sensitive spring or a memory alloy may be provided, and the water inlet end of the temperature-sensitive valve is used to connect to the water inlet pipeline, and the water outlet end of the temperature-sensitive valve is connected to the water inlet interface 12. The water flow of the first water servo assembly 30 changes according to the inlet water temperature. When the water temperature is cold in winter, the water heater has a large workload and a small water flow. When the water temperature is high in summer, the water heater has a small workload and a large water flow, thereby improving the constant temperature performance of the water heater.

On the basis of the above embodiment, please continue to refer to FIG. 1 and FIG. 8 , the first valve body 10 is further formed with a second water outlet interface 14 connected to the water inlet chamber 11, and the second water outlet interface 14 is used to connect the second water servo component 40, so that the water flow in the water inlet chamber 11 flows to the domestic hot water outlet through the second water servo component 40. In this embodiment, the second water outlet interface 14 is connected to the domestic hot water outlet, and preferably, the second water servo component 40 is connected to the outlet of the hot water exchange circuit through a bypass water channel, so that according to the water temperature requirement, the second water servo component 40 can be used to mix low-temperature water flow into the domestic water end, so that the water heater can achieve a constant temperature water outlet function.

In one embodiment, the second water outlet interface 14 is located on one side of the first valve body 10 in the lateral direction. The second water servo component 40 is arranged on one side of the water inlet valve assembly 100 in the lateral direction. The internal structure of the water heater is more compact, ensuring that enough functional components can be arranged within the size range of the water heater to improve the performance of the water heater, while controlling the size of the water heater to improve the user experience. In a preferred embodiment, please continue to refer to Figure 1, the second water servo component 40 and the heating water pump 60 are arranged on both sides of the water inlet valve assembly 100 in the lateral direction. On the one hand, the internal structure of the water heater is reasonably arranged, which is convenient for pipe arrangement. On the other hand, the assembly of the two components will not hinder each other, which is convenient for assembly, improves assembly efficiency, and reduces production costs.

The second water outlet interface 14 can be set as a common plug-in or card-connected interface. Preferably, the second water inlet servo is card-connected to the second water outlet interface 14 by means of a pin, so that the second water servo assembly 40 can be easily replaced and replaced and repaired. Alternatively, when the water heater does not need the constant temperature water outlet function, a baffle is used to replace the second water inlet servo to improve the expansion performance of the water heater.

In one embodiment, the second water outlet interface 14 is further provided with a flow limiting ring, which controls the total flow flowing into the second water servo component 40 within a second preset value, and the zero position of the second water servo component 40 is set to the middle value of the second preset value. In this way, the flow of the second water servo component 40 changes most obviously with the position of the second valve core, and the second water servo component 40 has the best effect on regulating the water flow.

There is no limitation on the specific type or structure of the second water servo component 40, as long as it can be connected to the bypass water circuit to achieve constant temperature water outlet of the water heater, control the water flow rate according to the outlet water temperature, mix an appropriate amount of low-temperature water into the hot water outlet of domestic water, achieve constant temperature water outlet for domestic water, and enhance the user's water use experience.

In one embodiment, please continue to refer to FIG. 8 , the water inlet valve assembly 100 further includes a second water servo assembly 40. The structure of the second water servo assembly 40 is similar to that of the first water servo assembly 30. The second water servo assembly 40 includes a second connector, a second valve core, and a second motor. The second connector is formed with a second water inlet channel, and a second water inlet and a second water outlet connected to the second water inlet channel. The second water inlet is connected to the second water outlet interface 14. The second water outlet is arranged at the lower part of the second connector, and is used to connect the bypass pipeline, so as to introduce the low-temperature water flow into the hot water outlet of domestic water. It can be understood that the second connector has an assembly structure that is mutually compatible with the second water outlet interface 14 at one end of the second water inlet, so as to realize the convenient installation and disassembly of the second water inlet servo assembly shown. The second water outlet is located at the lower side of the second connector, so that the bypass pipeline can be connected to the second connector from below, which is convenient for the layout and assembly of the bypass pipeline.

In a preferred embodiment, please continue to refer to Figure 1, the second water servo component 40 and the heating water pump 60 are arranged on both sides of the water inlet valve assembly 100 in the horizontal direction. On the one hand, this makes the internal structure of the water heater reasonably arranged, which is convenient for the arrangement of the bypass pipeline and the heating return pipeline. On the other hand, the assembly of the two components will not hinder each other, which is convenient for assembly, improves assembly efficiency and reduces production costs.

The specific structure and activity mode of the second valve core are not limited, as long as the water volume of the second water inlet servo assembly can be adjusted by controlling the activity of the second valve core. In one embodiment, the second valve core is movably arranged in the second water inlet channel along the front-to-back direction, so that the second connecting member is arranged in an elongated shape extending in the transverse direction as a whole, so that there is enough space to arrange the second water outlet. The second motor is arranged at the end of the second connecting member opposite to the second water inlet, and is drivingly connected to the second valve core. It can be understood that the transmission structure between the second motor and the second valve core can be set according to the activity mode of the second valve core. The second motor can be controlled to adjust the water flow rate of the water inlet of the second water servo assembly 40 according to the outlet water temperature of the domestic water end, so as to mix an appropriate amount of low-temperature water flow into the hot water outlet of the domestic water, so as to achieve constant temperature water outlet of the water heater. In this embodiment, the direction of water flow is as follows: water flows from the water inlet pipe through the first water inlet port 33 into the first water inlet channel 32, the activity of the first valve core 35 controls the water flow of the first water servo assembly 30, thereby controlling the total flow of domestic water of the water heater, and the water flow with controlled flow flows from the first water outlet 34 to the water inlet interface 12 and then flows into the water inlet chamber 11, and then part of the water flow in the water inlet chamber 11 flows through the first water outlet interface 13 to the domestic water plate exchange interface 22 and flows to the heat exchange pipe for heat exchange, and becomes a high-temperature water flow at the domestic water hot water outlet end, and the other part of the water flow flows from the second water outlet interface 14 into the second water inlet channel of the second water servo assembly 40, and flows out from the second water outlet after the water flow is adjusted by the second water servo assembly 40, flows into the bypass waterway, becomes a low-temperature water flow and merges with the high-temperature water flow, forming a constant-temperature water flow of suitable temperature flowing out from the domestic water hot water outlet end, thereby improving the user experience.

The second water servo assembly 40 can also be replaced with other forms to enhance the expansion of the water heater. In one embodiment, the second water servo assembly 40 includes a solenoid valve, the water inlet end of the solenoid valve is used to connect to the second water outlet interface 14, and the water outlet end of the solenoid valve is connected to the bypass pipeline. The solenoid valve can be controlled to adjust the water volume according to the water temperature of the domestic water hot water outlet, mix a suitable amount of low-temperature water flow into the domestic water end, form a constant temperature water flow of suitable temperature to flow out from the domestic water hot water outlet, and enhance the user experience.

In another embodiment, the second water servo assembly 40 includes a proportional valve, the water inlet end of the proportional valve is used to connect to the second water outlet interface 14, and the water outlet end of the proportional valve is connected to the bypass pipeline. The proportional valve can be controlled to adjust the water volume according to the water temperature of the domestic water hot water outlet, and mix a suitable amount of low-temperature water flow into the domestic water end to form a constant temperature water flow of suitable temperature flowing out of the domestic water hot water outlet, thereby improving the user experience.

On the basis of the above embodiment, the first valve body 10 is provided with a flow sensor 16 interface and/or a temperature sensor 17 interface connected to the water inlet chamber 11. In this way, the expansion performance of the water inlet valve assembly 100 is further improved. The water inlet valve assembly 100 may also include the flow sensor 16 and the temperature sensor 17. In this way, the water inlet valve assembly 100 can provide water volume and water temperature information of the inlet water, so that the first water inlet servo, the second water inlet servo and the gas proportional valve in the water heater can be adjusted in real time according to the corresponding water volume and water temperature information, further improving the performance of the water heater and improving the user experience.

The above description is only a preferred embodiment of the present invention, and does not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the inventive concept of the present invention, or directly/indirectly applied in other related technical fields are included in the patent protection scope of the present invention.

Claims (14)

1. A fill valve assembly, comprising:

the water inlet device comprises a first valve body, wherein the first valve body is provided with a water inlet cavity, a water inlet interface and a first water outlet interface, the water inlet interface is communicated with the water inlet cavity, the water inlet interface is used for being connected with a first water servo assembly, and the first water outlet interface is used for being communicated with a domestic water plate change interface, so that water in the water inlet pipeline flows into the water inlet interface through the first water servo assembly and flows out of the first water outlet interface.

2. The water inlet valve assembly as recited in claim 1 wherein the water inlet port and the first water outlet port are both located on a front side of the first valve body, the water inlet port being located below the first water outlet port.

3. The water inlet valve assembly of claim 2, further comprising the first water servo assembly, the first water servo assembly comprising:

the first connecting piece is provided with a first water inlet channel, a first water inlet and a first water outlet, wherein the first water inlet and the first water outlet are communicated with the first water inlet channel, the first water inlet is arranged on the lower side of the first connecting piece and is used for communicating with the water inlet pipeline, and the first water outlet is communicated with the water inlet interface;

the first valve core is movably arranged in the first water inlet channel to adjust the water flow of the first water inlet channel; the method comprises the steps of,

the first motor is arranged at one end of the first connecting piece opposite to the first water outlet and is in driving connection with the first valve core; or,

the first water servo assembly comprises an electromagnetic valve, a water inlet end of the electromagnetic valve is used for being communicated with the water inlet pipeline, and a water outlet end of the electromagnetic valve is communicated with the water inlet interface; or,

the first water servo assembly comprises a proportional valve, a water inlet end of the proportional valve is used for being communicated with the water inlet pipeline, and a water outlet end of the proportional valve is communicated with the water inlet interface; or,

the first water servo assembly comprises a temperature sensing valve, a water inlet end of the temperature sensing valve is used for being communicated with the water inlet pipeline, and a water outlet end of the temperature sensing valve is communicated with the water inlet interface.

4. The water inlet valve assembly of claim 2, wherein the first valve body is further formed with a second water outlet port communicating with the water inlet chamber, the second water outlet port being adapted to be connected to a second water servo assembly such that water within the water inlet chamber flows through the second water servo assembly to the domestic hot water outlet.

5. The fill valve assembly as recited in claim 4 wherein said second outlet port is located laterally to one side of said first valve body.

6. The water inlet valve assembly as recited in claim 4, further comprising the second water servo assembly, the second water servo assembly comprising:

the second connecting piece is provided with a second water inlet channel, a second water inlet and a second water outlet, wherein the second water inlet and the second water outlet are communicated with the second water inlet channel, the second water inlet is communicated with the second water outlet, and the second water outlet is arranged on the lower side of the second connecting piece and is used for communicating the domestic hot water outlet end;

the second valve core is movably arranged in the second water inlet channel to adjust the water flow of the second water inlet channel; the method comprises the steps of,

the second motor is arranged at one end of the second connecting piece opposite to the second water inlet and is in driving connection with the second valve core.

7. The water inlet valve assembly as recited in any one of claims 2 to 6, further comprising a second valve body disposed laterally to one side of the first valve body, the second valve body defining a water return chamber, and a water return port and a water panel change port in communication with the water return chamber.

8. The water inlet valve assembly as recited in claim 7 wherein the first valve body lower end forms a water replenishment valve interface for connecting a water replenishment valve such that the water inlet chamber and the water return chamber can communicate through the water replenishment valve.

9. The fill valve assembly as recited in claim 8 wherein said fill valve comprises:

the shell is provided with a water supplementing cavity, and the upper end of the shell is provided with a water supplementing port communicated with the water supplementing cavity and the water returning cavity;

the water supplementing pipe is inserted into the upper end of the shell, and is penetrated with a water supplementing channel along the up-down direction, the upper end of the water supplementing channel is communicated with the water inlet cavity, and the lower end of the water supplementing channel is communicated with the water supplementing cavity;

the water supplementing valve core is movably arranged in the water supplementing cavity along the up-down direction and is provided with a first valve position for upwards moving to block the lower end of the water supplementing channel and a second valve position for opening the lower end of the water supplementing channel; and the operation part is movably arranged at the lower end of the shell, is in driving connection with the water supplementing valve core and is used for driving the water supplementing valve core to switch between the first valve position and the second valve position.

10. The water inlet valve assembly as recited in claim 7 wherein said second valve body is further formed with said domestic water panel switch, said domestic water panel switch and said heating water panel switch being located on a rear side of said second valve body, and said domestic water panel switch being located above said heating water panel switch.

11. The water inlet valve assembly of claim 10, further comprising a heating water pump, wherein a water inlet end of the heating water pump is configured to communicate with a heating water return line, and wherein a water outlet end of the heating water pump is configured to communicate with the water return port, the water return port being disposed on a side of the second valve body opposite the first valve body.

12. The water inlet valve assembly as recited in claim 10 or 11, further comprising a zero-cool water pump, a water inlet end of the zero-cool water pump being in communication with the first water outlet port, a water outlet end of the zero-cool water pump being in communication with the domestic water panel change port.

13. The inlet valve assembly as recited in any one of claims 1 to 6 wherein the first valve body is provided with a flow sensor interface and/or a temperature sensor interface communicating with the inlet chamber.

14. A water heater comprising a fill valve assembly as claimed in any one of claims 1 to 13.

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