A water inlet module

Abstract

The application belongs to the technical field of wall-hanging stoves, and particularly discloses a water inlet module. The water inlet module comprises a water pump and a water inlet valve. The water pump has a pump cavity, and is provided with a water pump interface, a heating return water outlet and a heating water outlet which are communicated with the pump cavity; the water inlet valve has a first flow channel, and is provided with a valve port and a heating water inlet which are communicated with the first flow channel, and the valve port and the water pump interface are mutually docked to communicate the first flow channel and the pump cavity; the water inlet valve further has a second flow channel and a third flow channel, and is provided with a bathroom water inlet and a bathroom water outlet; the bathroom water outlet is located above the heating water inlet; the second flow channel is arranged on the side of the bathroom water outlet away from the water pump and is communicated with the bathroom water outlet; the bathroom water inlet deviates from the water pump with the axis of the second flow channel as a reference line and is communicated with the second flow channel through the third flow channel. In the water inlet module, the distance between the bathroom water inlet of the water inlet valve and the heating return water outlet of the water pump is small.

Description

Technical Field

[0001] This application belongs to the field of wall-hung boiler technology, and more specifically, relates to a water inlet module. Background Technology

[0002] A wall-hung boiler is a wall-mounted heating system used to provide heating and domestic hot water for residential, public, and commercial buildings. It achieves heat transfer through an internal closed-loop water circulation system, converting cold water into hot water.

[0003] In the water system of a wall-hung boiler, the inlet module, consisting of an inlet valve and a water pump, is a key component ensuring the normal operation of the system. Its main function is to achieve stable introduction and efficient delivery of cold water. However, in traditional inlet modules, due to the numerous water channels and interfaces, especially to avoid the heating inlet in the inlet valve, the bathroom inlet and bathroom flow channel in the inlet valve are often arranged in a straight line on the side away from the water pump from the heating inlet. This results in an excessively large distance between the bathroom inlet in the inlet valve and the heating return inlet of the water pump. This deficiency causes the inlet module to occupy too much space inside the wall-hung boiler, not only reducing the utilization rate of the internal space of the boiler, but also seriously limiting the development of wall-hung boilers towards miniaturization, making it difficult to meet the current market demand for miniaturized wall-hung boilers. Utility Model Content

[0004] In view of the deficiencies or improvement needs of the prior art, this application provides a water inlet module, which aims to improve the problem of excessive distance between the water inlet valve bathroom water inlet and the water pump heating return water inlet.

[0005] This application provides a water inlet module, including a water pump and an inlet valve, wherein: The water pump has a pump chamber and is equipped with a water pump interface, a heating return water inlet and a heating outlet that communicate with the pump chamber; The inlet valve has a first flow channel and is provided with a valve port and a heating inlet that communicate with the first flow channel. The valve port is connected to the water pump interface so that the first flow channel and the pump chamber are connected. The inlet valve also has a second flow channel and a third flow channel, and is provided with a bathroom inlet and a bathroom outlet; the bathroom outlet is located above the heating inlet; the second flow channel is located on the side of the bathroom outlet away from the water pump and is connected to the bathroom outlet; the bathroom inlet is offset from the water pump with the axis of the second flow channel as the reference line, and is connected to the second flow channel through the third flow channel.

[0006] As a further preferred embodiment, the axis of the bathroom water inlet passes through the heating water inlet, or the axis of the bathroom water inlet is located on the side of the heating water inlet away from the second flow channel.

[0007] As a further preferred embodiment, the end of the second flow channel away from the third flow channel has a first port and is provided with a first plug for opening and closing the first port; The third flow channel has a second port at the end away from the bathroom water inlet, and is provided with a second plug for opening and closing the second port.

[0008] As a further preferred embodiment, a water flow sensor is provided on the periphery of the second flow channel. The impeller in the water flow sensor has its axis offset from the axis of the second flow channel, and the impeller part extends into the second flow channel and can be driven to rotate by the water flow in the second flow channel.

[0009] As a further preferred embodiment, the third flow channel and the second flow channel constitute a bathroom flow channel, and the water inlet valve is provided with a water supply branch connecting the first flow channel and the bathroom flow channel, and is provided with a water supply valve for switching the water supply branch.

[0010] As a further preferred embodiment, the water supply branch is located on the back side of the heating water inlet, and the water supply branch has a water supply inlet connected to the second flow channel and a water supply outlet connected to the first flow channel.

[0011] As a further preferred embodiment, the water inlet module also includes a snap-fit ​​connector, through which the valve port and the water pump interface are snapped and fixed.

[0012] As a further preferred embodiment, the water pump is provided with a first mounting structure for connecting to external components, and the water inlet valve is provided with a second mounting structure for connecting to external components.

[0013] As a further preferred embodiment, the bathroom water inlet is injection molded onto the valve body of the water inlet valve.

[0014] As a further preferred embodiment, the bathroom water inlet is detachably connected to the valve body of the water inlet valve.

[0015] In summary, compared with the prior art, the technical solutions conceived in this application have the following main technical advantages: 1. In this design, the distance between the bathroom water inlet and the heating return water inlet is reduced by offsetting the bathroom water inlet from the water pump with the axis of the second flow channel as the reference line. This helps to reduce the overall width dimension of the water inlet module and can reduce the center distance to 65mm or even smaller (in traditional designs, the center distance between the bathroom water inlet and the heating return water inlet is mostly 75mm), which helps to reduce the overall volume of the water inlet module.

[0016] 2. Based on the offset design of the bathroom inlet, the bathroom inlet, together with the second and third flow channels, forms an eccentric bend flow channel. Compared with the traditional straight flow channel design, this design is conducive to stabilizing the water flow and can reduce the direct impact of the water flow entering at the flow limiting ring on the water flow sensor, thereby protecting the water flow sensor. Attached Figure Description

[0017] Figure 1 This is a flowchart of a wall-hung boiler water system provided in an embodiment of this application; Figure 2 This is a schematic diagram of the overall structure of a water inlet module provided in an embodiment of this application; Figure 3 This is a cross-sectional view of the water inlet module provided in an embodiment of this application; Figure 4 This is an exploded view of the water inlet module provided in the embodiment of this application; Figure 5 This is a rear view of the water inlet module provided in an embodiment of this application; Figure 6 This is a cross-sectional view of the water inlet valve provided in an embodiment of this application; Figure 7 This is a right view of the inlet valve provided in an embodiment of this application; Figure 8 This is a bottom view of the water inlet module provided in the embodiment of this application.

[0018] In all the accompanying drawings, the same reference numerals are used to denote the same elements or structures, wherein: 1. Water pump; 1-1. Water pump interface; 1-2. Heating return water inlet; 1-3. Heating outlet; 1-4. First installation structure; 2. Inlet valve; 2-1. First flow channel; 2-2. Valve port; 2-3. Heating inlet; 2-4. Bathroom flow channel; 2-4a. Second flow channel; 2-4b. Third flow channel; 2-5. Bathroom inlet; 2-6. Bathroom outlet; 2-7. First plug; 2-8. Second plug; 2-9. Water flow rate Sensor; 2-10, Water supply branch; 2-11, Second mounting structure; 2-12, Flow limiting ring; 3, Water supply valve; 4, Snap-fit ​​component; 5, Combustion chamber; 5-1, Hot water outlet; 6, Heat exchange structure; 6-1, Heat exchange channel; 6-2, Water supply channel; 7, Outlet valve; 7-1, Hot water inlet; 7-2, Heating channel; 7-3, First heat exchange inlet channel; 7-4, First heat exchange outlet channel; 7-5, Bathroom channel; 8, Heating system. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and not intended to limit the scope of this application.

[0020] The following is in conjunction with the appendix Figures 1-8 This application will be described in further detail.

[0021] like Figure 1 As shown, this embodiment provides a water system for a wall-hung boiler. The water system includes a water inlet module, a combustion chamber 5, a heat exchange structure 6, and a water outlet valve 7. The combustion chamber 5 can heat the water inside; the heat exchange structure 6 includes a heat exchange channel 6-1 and a water supply channel 6-2; the water inlet module can supply water to the combustion chamber 5 and the water supply channel 6-2; the valve body of the water outlet valve 7 has a hot water inlet 7-1, a first heat exchange inlet channel 7-3, a first heat exchange outlet channel 7-4, a heating channel 7-2, and a bathroom channel 7-5; the hot water inlet 7-1 is connected to the hot water outlet 5-1 of the combustion chamber 5, and the hot water inlet 7-1 can selectively connect to the heating channel 7-2 or the first heat exchange inlet channel 7-3; the first heat exchange inlet channel 7-3 is connected to the inlet of the heat exchange channel 6-1, the outlet of the heat exchange channel 6-1 is connected to the heating inlet 2-3 of the water inlet valve 2 in the water inlet module, the inlet of the water supply channel 6-2 is connected to the bathroom outlet 2-6 of the water inlet valve 2, and the outlet of the water supply channel 6-2 is connected to the first heat exchange outlet channel 7-4.

[0022] During operation, when the hot water inlet 7-1 is connected to the heating channel 7-2, a heating water circulation loop is formed. Specifically, the hot water heated by the combustion chamber 5 flows sequentially through the hot water outlet 5-1, the hot water inlet 7-1, and the heating channel 7-2 into the heating system 8 to provide heating for users. The water in the heating system 8, after heat exchange with the outside environment, enters the chamber of the water pump 1 through the heating return inlet 1-2. The water pump 1 then pumps the water from the chamber into the combustion chamber 5 for reheating, thus forming the heating water circulation loop.

[0023] During use, when the hot water inlet 7-1 is connected to the first heat exchange inlet channel 7-3, a heat exchange circulation loop is formed. Specifically, the hot water heated by the combustion chamber 5 flows sequentially through the hot water outlet 5-1, the hot water inlet 7-1, and the first heat exchange inlet channel 7-3 to the heat exchange channel 6-1 of the heat exchange structure 6. After exchanging heat with the water in the water supply channel 6-2, the water enters the inlet valve 2 along the heating inlet 2-3. Then, the inlet valve 2 sends the water into the chamber of the water pump 1, and then the water pump 1 pumps it to the combustion chamber 5 to be heated again, thus forming a heat exchange circulation loop.

[0024] During use, water from the external water source enters the inlet valve 2 through the bathroom inlet 2-5, and then flows into the water supply channel 6-2 of the heat exchange structure 6 through the bathroom outlet 2-6. After exchanging heat with the water in the heat exchange channel 6-1, it flows into the bathroom system through the first heat exchange outlet channel 7-4 and the bathroom channel 7-5 to provide domestic water for users.

[0025] It should be explained that the heating system 8 specifically refers to terminal heat dissipation components such as radiators, underfloor heating pipes, or fan coil units. Water heated in the combustion chamber 5 can be pumped to these terminal heat dissipation components via the outlet valve 7, dissipating heat into the indoor air to raise the indoor ambient temperature and meet the user's heating needs. The bathroom system specifically refers to water-using devices for users to shower, wash, and perform other operations. Therefore, both the heating system 8 and the bathroom system are relatively mature technologies in this field, and the specific structures of the heating system 8 and the bathroom system will not be described in detail in this embodiment.

[0026] It should also be noted that the water outlet valve 7, combustion chamber 5, heat exchange structure 6, water pump 1, and heating system 8 are all relatively mature technologies in the field. Therefore, the specific structures of the water outlet valve 7, combustion chamber 5, heat exchange structure 6, water pump 1, and heating system 8 will not be described in detail in this embodiment. Furthermore, for ease of understanding, Figure 1 The direction of water flow is indicated by solid arrows.

[0027] Reference Figures 2-5 This application discloses a water inlet module. The water inlet module includes a water pump 1 and an inlet valve 2. The water pump 1 has a pump chamber and is provided with a water pump interface 1-1 communicating with the pump chamber, a heating return water inlet 1-2, and a heating outlet 1-3. The water pump 1 can pump water from the pump chamber out through the water pump interface 1-1. The inlet valve 2 has a first flow channel 2-1 and is provided with a valve port 2-2 communicating with the first flow channel 2-1 and a heating inlet 2-3. The valve port 2-2 is connected to the water pump interface 1-1 to connect the first flow channel 2-1 and the pump chamber. The inlet valve 2 also has a second flow channel 2-4. The system includes a third flow channel 2-4b and a bathroom inlet 2-5 and a bathroom outlet 2-6. The bathroom outlet 2-6 is located above the heating inlet 2-3. The second flow channel 2-4a is located on the side of the bathroom outlet 2-6 away from the water pump 1 and is connected to the bathroom outlet 2-6. The bathroom inlet 2-5 is offset from the water pump 1 with the axis of the second flow channel 2-4a as the reference line and is connected to the second flow channel 2-4a through the third flow channel 2-4b. The third flow channel 2-4b and the second flow channel 2-4a together form the bathroom flow channel 2-4.

[0028] Furthermore, in some embodiments, the axis of the bathroom inlet 2-5 passes through the heating inlet 2-3, or the axis of the bathroom inlet 2-5 is located on the side of the heating inlet 2-3 away from the second flow channel 2-4a, and the bathroom inlet 2-5 does not interfere with the water pump 1. In some specific embodiments, the center distance between the bathroom inlet 2-5 and the heating return inlet 1-2 is within 75mm; for example, the center distance between the bathroom inlet 2-5 and the heating return inlet 1-2 can also be set to 70mm, 65mm, 60mm, 55mm, etc., preferably 65mm.

[0029] Furthermore, such as Figure 3 As shown, in some embodiments, the second flow channel 2-4a is adjacent to the periphery of the third flow channel 2-4b. The line connecting the axes of the heating inlet 2-3 and the bathroom outlet 2-6 is considered the first connecting line. The axis of the second flow channel 2-4a is parallel to this first connecting line. The end of the second flow channel 2-4a away from the third flow channel 2-4b has a first port and is provided with a first plug 2-7 for opening and closing the first port. The end of the third flow channel 2-4b away from the bathroom inlet 2-5 has a second port and is provided with a second plug 2-8 for opening and closing the second port. By providing the first plug 2-7 and the second plug 2-8, the first and second ends can be used as reserved interfaces for adding other components (such as sensors) in the water inlet module.

[0030] It is understood that in some other embodiments, the first plug 2-7 and the second plug 2-8 may not be provided. For example, the end of the second flow channel 2-4a away from the third flow channel 2-4b is a closed end face; the end of the third flow channel 2-4b away from the bathroom inlet 2-5 is directly used as a connecting port to the second flow channel 2-4a.

[0031] Furthermore, such as Figure 3 and Figure 4 As shown, in some embodiments, a water flow sensor 2-9 is provided around the periphery of the second flow channel 2-4a. The impeller of the water flow sensor 2-9 has its axis offset from the axis of the second flow channel 2-4a, and the impeller portion extends into the second flow channel 2-4a and can be driven to rotate by the water flow in the second flow channel 2-4a. By setting the water flow sensor 2-9, the magnitude of the water flow in the second flow channel 2-4a can be detected.

[0032] Preferably, in some specific embodiments, a water flow sensor 2-9 is installed at the junction between the bathroom outlet 2-6 and the second flow channel 2-4a. The axis of the impeller in the water flow sensor 2-9 is located between the axis of the bathroom outlet 2-6 and the axis of the second flow channel 2-4a. When bathroom water enters the bathroom outlet 2-6 from the second flow channel 2-4a, the water drives the impeller to rotate, causing the water flow sensor 2-9 to generate a flow signal. The relevant principle of the water flow sensor 2-9 is prior art and will not be elaborated further here.

[0033] It is known that the installation position of the water flow sensor 2-9 can be flexibly adjusted. For example, the water flow sensor 2-9 can be set on the side of the second flow channel 2-4a away from the bathroom outlet 2-6, or other suitable positions of the inlet valve 2 can be selected according to actual needs. The key is to ensure that the water flow sensor 2-9 can be adapted to realize water flow detection.

[0034] Furthermore, in some embodiments, the inlet valve 2 is provided with a water replenishment branch 2-10 connecting the first flow channel 2-1 and the bathroom flow channel 2-4, and a water replenishment valve 3 for switching the water replenishment branch 2-10 on and off. Under this design, in some extreme operating conditions, such as water evaporation or water leakage in the heating water circulation loop, the water replenishment valve 3 can be opened during maintenance to replenish the water in the first flow channel 2-1 from the bathroom flow channel 2-4, thereby replenishing the heating water.

[0035] As a preferred option, such as Figure 6 and Figure 7 As shown, the water supply branch 2-10 is located on the back side of the heating water inlet 2-3. The water supply branch 2-10 has a water supply inlet connected to the second flow channel 2-4a and a water supply outlet connected to the first flow channel 2-1. The water supply valve 3 is preferably an inclined water supply valve or a vertical water supply valve, and the water supply valve 3 is preferably manually controlled or electrically driven.

[0036] Furthermore, such as Figure 4 As shown, in some embodiments, the water inlet module further includes a snap-fit ​​component 4, which clamps and fixes the valve port 2-2 and the water pump interface 1-1 to form a snap-fit ​​connection. The snap-fit ​​component 4 includes, but is not limited to, using a U-shaped clip. At the same time, a sealing component is used to seal the joint between the valve port 2-2 and the water pump interface 1-1 to prevent leakage.

[0037] Furthermore, such as Figure 8 As shown, in some embodiments, the water pump 1 is provided with a first mounting structure 1-4 for connecting with external components, and the water inlet valve 2 is provided with a second mounting structure 2-11 for connecting with external components. The first mounting structure 1-4 and the second mounting structure 2-11 include, but are not limited to, mounting plates with mounting holes.

[0038] In fact, whether it's the snap-fit ​​connector 4 or the first mounting structure 1-4 and the second mounting structure 2-11, the purpose is to achieve a stable connection between the inlet valve 2 and the water pump 1, ensuring a water circuit connection between them. Therefore, in some embodiments, the snap-fit ​​connector 4 can be used to achieve a direct connection between the inlet valve 2 and the water pump 1, or the first mounting structure 1-4 and the second mounting structure 2-11 can be used to achieve a relative connection between them. Of course, it's also possible to simultaneously install the snap-fit ​​connector 4, the first mounting structure 1-4, and the second mounting structure 2-11 in the inlet module to ensure stable installation and a reliable connection between the inlet valve 2 and the water pump 1.

[0039] Furthermore, in some embodiments, the bathroom inlet 2-5 is injection molded onto the valve body of the inlet valve 2. This design integrates the bathroom inlet 2-5 with the valve body, improving the integrity of the inlet valve 2. At the same time, this design replaces the traditional metal material (such as brass) of the bathroom inlet 2-5 with an engineering plastic material, reducing material costs.

[0040] Furthermore, in some other embodiments, the bathroom inlet 2-5 is detachably connected to the valve body of the inlet valve 2. For example, a threaded connection or pin fixing may be used. With this design, the bathroom inlet 2-5 can be disassembled and replaced, reducing maintenance costs.

[0041] Furthermore, such as Figure 3 As shown, in some embodiments, a flow-limiting ring 2-12 is provided inside the bathroom water inlet 2-5. By providing the flow-limiting ring 2-12, the maximum water flow rate of the bathroom water inlet 2-5 can be limited, which is beneficial to the stability of water pressure in the inlet valve 2.

[0042] In this design, by offsetting the bathroom inlet 2-5 towards the water pump 1 with the axis of the second flow channel 2-4a as the reference line, the distance between the bathroom inlet 2-5 and the heating return inlet 1-2 can be reduced. This is beneficial to reducing the overall width dimension of the water inlet module (i.e., the direction from the inlet valve 2 to the water pump 1) and reducing the overall volume of the water inlet module. In particular, based on the offset design of the bathroom inlet 2-5, the bathroom inlet 2-5, the second flow channel 2-4a, and the third flow channel 2-4b form an eccentric flow channel. Compared with the traditional straight flow channel design, this design can reduce the direct impact of the water flowing into the flow limiting ring 2-12 on the water flow sensor 2-9, which is beneficial to stabilizing the water flow.

[0043] It should be understood that expressions such as "comprising" and "may include" as used in this application indicate the existence of the disclosed functions, operations, or constituent elements, and do not limit one or more additional functions, operations, and constituent elements. In this application, terms such as "comprising" and / or "having" may be interpreted as indicating a specific characteristic, number, operation, constituent element, component, or combination thereof, but should not be interpreted as excluding the existence or possibility of adding one or more other characteristics, numbers, operations, constituent elements, components, or combinations thereof.

[0044] It should be understood that the terms “center,” “upper,” “lower,” “front,” “rear,” “left,” “right,” “vertical,” “horizontal,” “inner,” “outer,” “clockwise,” “counterclockwise,” “axial,” “radial,” and “circumferential” indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0045] For example, the phrase "bathroom water outlets 2-6 are located above heating water inlets 2-3" as described above specifically refers to the attached... Figure 3 From the perspective of the view shown, the bathroom water outlet 2-6 is in the "above" position relative to the heating water inlet 2-3 as defined above. This positional definition is only applicable to the description of the relative positions of the relevant components in this application and does not indicate or imply that the device or element referred to must have a specific position, or be constructed and operated in a specific position.

[0046] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying 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 this application, "multiple" means two or more, unless otherwise explicitly specified.

[0047] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0048] Those skilled in the art will readily understand that the above description is merely a preferred embodiment of this application and is not intended to limit this application. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A water inlet module, characterized in that, Includes a water pump (1) and an inlet valve (2), wherein: The water pump (1) has a pump chamber and is provided with a water pump interface (1-1), a heating return water inlet (1-2) and a heating outlet (1-3) communicating with the pump chamber; The inlet valve (2) has a first flow channel (2-1) and is provided with a valve port (2-2) and a heating inlet (2-3) communicating with the first flow channel (2-1). The valve port (2-2) is connected to the water pump interface (1-1) so that the first flow channel (2-1) and the pump chamber are connected. The inlet valve (2) also has a second flow channel (2-4a) and a third flow channel (2-4b), and is provided with a bathroom inlet (2-5) and a bathroom outlet (2-6); the bathroom outlet (2-6) is located above the heating inlet (2-3); the second flow channel (2-4a) is located on the side of the bathroom outlet (2-6) away from the water pump (1), and is connected to the bathroom outlet (2-6); the bathroom inlet (2-5) is offset from the water pump (1) with the axis of the second flow channel (2-4a) as the reference line, and is connected to the second flow channel (2-4a) through the third flow channel (2-4b).

2. The water inlet module as described in claim 1, characterized in that, The axis of the bathroom water inlet (2-5) passes through the heating water inlet (2-3), or the axis of the bathroom water inlet (2-5) is located on the side of the heating water inlet (2-3) away from the second flow channel (2-4a).

3. The water inlet module as described in claim 1, characterized in that, The second flow channel (2-4a) has a first port at the end away from the third flow channel (2-4b), and is provided with a first plug (2-8) for opening and closing the first port; The third flow channel (2-4b) has a second port at the end away from the bathroom water inlet (2-5), and is provided with a second plug (2-7) for opening and closing the second port.

4. The water inlet module as described in claim 1, characterized in that, A water flow sensor (2-9) is provided on the periphery of the second flow channel (2-4a). The impeller in the water flow sensor (2-9) has its axis offset from the axis of the second flow channel (2-4a), and the impeller part extends into the second flow channel (2-4a) and can be driven to rotate by the water flow in the second flow channel (2-4a).

5. The water inlet module as described in claim 1, characterized in that, The second flow channel (2-4a) and the third flow channel (2-4b) form the bathroom flow channel (2-4). The water inlet valve (2) is provided with a water supply branch (2-10) connecting the first flow channel (2-1) and the bathroom flow channel (2-4), and is provided with a water supply valve (3) for switching the water supply branch (2-10).

6. The water inlet module as described in claim 5, characterized in that, The water supply branch (2-10) is located on the back side of the heating water inlet (2-3). The water supply branch (2-10) has a water supply inlet connected to the second flow channel (2-4a) and a water supply outlet connected to the first flow channel (2-1).

7. The water inlet module as described in any one of claims 1-6, characterized in that, The water inlet module also includes a snap-fit ​​component (4), and the valve port (2-2) and the water pump port (1-1) are snapped and fixed by the snap-fit ​​component (4).

8. The water inlet module as described in any one of claims 1-6, characterized in that, The water pump (1) is provided with a first mounting structure (1-4) for connecting with external components, and the water inlet valve (2) is provided with a second mounting structure (2-11) for connecting with external components.

9. The water inlet module as described in any one of claims 1-6, characterized in that, The bathroom water inlet (2-5) is injection molded onto the valve body of the water inlet valve (2).

10. The water inlet module as described in any one of claims 1-6, characterized in that, The bathroom water inlet (2-5) is detachably connected to the valve body of the water inlet valve (2).

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