Water heater

By centrally placing the water circuit components and circuit boards of the water heater on one side of the side cover, the problem of inconvenient installation and maintenance of existing water heaters is solved, and a more efficient operating process and simpler debugging process are achieved.

CN222378460UActive Publication Date: 2025-01-21GUANDONG MIDEA KITCHEN AND BATH APPLIANCES MFG CO LTD +1
View PDF 0 Cites 0 Cited by

Patent Information

Application Number
CN202421096401.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-05-17
Publication Date
2025-01-21
Estimated Expiration
2034-05-17

AI Technical Summary

Technical Problem

In existing water heaters, the installation and maintenance of water circuit components and circuit boards are inconvenient, and they need to be disassembled and assembled from different locations, resulting in complex operation.

Method used

The waterway components and circuit boards are centrally placed on the side of the box corresponding to the side cover of the housing, so that during installation and maintenance, only the side cover can be opened for operation, improving convenience.

Benefits of technology

The design of the side cover significantly improves the convenience of installation and maintenance, reduces the complexity of operation, and makes the debugging process simpler when the electrical connection is in place.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN222378460U_ABST
    Figure CN222378460U_ABST
Patent Text Reader

Abstract

The utility model relates to the technical field of water heaters, and provides a water heater which comprises a shell, a box body, a heat exchanger, a waterway assembly and a circuit board, the shell comprises a main body and a side cover detachably mounted on the main body; the box body is arranged in the shell and is provided with a liquid storage space; the heat exchanger is installed on the box body and comprises a heat exchange pipe, the heat exchange pipe is used for circulating water used by a user, and heat exchange is conducted between the water in the heat exchange pipe and the water in the liquid storage space; the water path assembly is installed on the side, corresponding to the side cover, of the box body and comprises a water inlet pipe and a water outlet pipe which both communicate with the heat exchange pipe. The circuit board is installed on one side, corresponding to the side cover, of the box body. The circuit board and the waterway assembly are arranged on the side, corresponding to the side cover, of the box body, a worker can install and maintain the circuit board or the waterway assembly only by opening the side cover, the position does not need to be moved in the installation and maintenance process, and installation and maintenance convenience is effectively improved.
Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of water heaters, in particular to a water heater. Background Art

[0002] In the related art, the water circuit components (water inlet pipe, water outlet pipe and sewage pipe, etc.) and electronic control components (circuit board, display, etc.) exposed outside the inner tank of the water heater usually need to be disassembled and assembled from different positions on the water heater, which causes inconvenience in installation and maintenance. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the related art. To this end, the utility model proposes a water heater, in which the water circuit components and the circuit board are centrally placed on one side of the box body corresponding to the side cover of the shell, so that the installation and maintenance can be performed by only opening the side cover, thereby improving the convenience of installation and maintenance.

[0004] The water heater according to the first embodiment of the utility model comprises:

[0005] A housing, comprising a main body and a side cover detachably mounted on the main body;

[0006] A box body, the box body is installed in the shell, and the box body is provided with a liquid storage space;

[0007] A heat exchanger is installed in the box, the heat exchanger includes a heat exchange tube, the heat exchange tube is used to circulate water used by the user, and the water in the heat exchange tube exchanges heat with the water in the liquid storage space;

[0008] A water circuit assembly is installed on a side of the box body corresponding to the side cover, and the water circuit assembly includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected to the heat exchange pipe;

[0009] A circuit board is installed on a side of the box body corresponding to the side cover.

[0010] According to the water heater of the embodiment of the utility model, by arranging the circuit board and the water circuit assembly on a side of the box body corresponding to the side cover, the staff only needs to open the side cover to install and repair the circuit board or the water circuit assembly, and there is no need to move the position during the installation and maintenance process, which effectively improves the convenience of installation and maintenance; and when the circuit board and the water circuit assembly are directly electrically connected (such as the circuit board controls the valve body of the water circuit assembly), the same-side arrangement makes the debugging process of the staff simpler and more convenient; and, a side cover is provided on the outer cover of the water circuit assembly and the circuit board to prevent external humid air from entering the outer shell and affecting the service life of the water circuit assembly and the circuit board, while achieving a hiding effect and improving the user's perception.

[0011] According to one embodiment of the utility model, a mounting seat is fixed to the box body corresponding to the side cover, a heat insulation layer is fixed to the side of the mounting seat facing away from the side cover, the mounting seat forms an assembly space opening facing away from the box body, the water circuit assembly and the circuit board are both installed in the assembly space, and the water circuit assembly and the circuit board are both fixed to the box body through the mounting seat.

[0012] According to an embodiment of the utility model, a foaming space is formed between the box body and the shell;

[0013] The water heater also includes:

[0014] A foam piece is fixed between the shell and the mounting seat and is used to isolate the assembly space from the foaming space.

[0015] According to an embodiment of the utility model, the foam piece has an annular boss extending toward the mounting seat, the mounting seat is provided with an annular recess corresponding to the annular boss, and the annular boss and the annular recess are sealingly matched.

[0016] According to an embodiment of the utility model, a display panel assembly is fixed to the front side of the housing, and a wiring groove is formed between the foam member and the housing, and the wiring groove is used to pass the wires of the display panel assembly so that the wires are connected to the circuit board.

[0017] According to an embodiment of the utility model, the foam piece has a first end surface and a second end surface in a stepped distribution on a side facing the side cover, the first end surface is flush with an end surface of the shell, and the second end surface is flush with an edge of the mounting seat.

[0018] According to one embodiment of the utility model, the foam piece is provided with an avoidance gap, and the water inlet pipe and the water outlet pipe are both installed in the outer shell through the avoidance gap; the water channel assembly also includes a sewage pipe, and the sewage pipe is installed to the sewage outlet of the outer shell through the avoidance gap, and the sewage pipe is hidden in the outer shell.

[0019] According to an embodiment of the utility model, the mounting seat is provided with a partition plate, and the partition plate is used to divide the assembly space into a first assembly space and a second assembly space, the first assembly space is used to install the circuit board, and the second assembly space is used to install the water channel component.

[0020] According to an embodiment of the utility model, a mounting rail is provided on a side of the partition plate facing the first assembly space, and the mounting rail is used to install circuit components.

[0021] According to an embodiment of the present utility model, the circuit board is located above the water channel assembly, or the circuit board is located at the front side of the water channel assembly.

[0022] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the utility model or related technologies, the drawings required for use in the embodiments or related technical descriptions are briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0024] Figure 1 It is a schematic diagram of the structure of the water heater provided by the embodiment of the utility model after the side cover is removed;

[0025] Figure 2 It is a front view of the water heater provided by the embodiment of the utility model;

[0026] Figure 3 It is the cross-sectional view along the section line AA in 2;

[0027] Figure 4 It is a right side view of the water heater provided by the embodiment of the utility model;

[0028] Figure 5 It is a cross-sectional view along section line BB in 2;

[0029] Figure 6 yes Figure 5 Enlarged view of part C in the middle.

[0030] Reference numerals:

[0031] 10. Box body; 11. Liquid storage space; 17. Mounting seat; 171. Assembly space; 172. Annular depression; 173. Partition plate; 174. Mounting guide rail; 18. Heat insulation layer;

[0032] 20. Heat exchanger; 21. Heat exchange tube;

[0033] 30. Water circuit assembly; 31. Water inlet pipe; 32. Water outlet pipe; 33. Sewage pipe;

[0034] 75, circuit board; 76, foaming space; 77, foam member; 771, annular boss; 772, wiring groove; 773, first end face; 774, second end face; 775, avoidance gap;

[0035] 90. Casing; 91. Main body; 92. Side cover; 93. Display panel assembly. DETAILED DESCRIPTION

[0036] The following is a further detailed description of the implementation of the present invention in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present invention, but cannot be used to limit the scope of the present invention.

[0037] In the description of the embodiments of the present utility model, it should be noted that the terms "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the embodiments of the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the embodiments of the present utility model. In addition, the terms "first", "second", and "third" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0038] In the description of the embodiments of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "connected" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the embodiments of the present utility model can be understood according to specific circumstances.

[0039] In the embodiments of the present invention, unless otherwise clearly specified and limited, the first feature being "above" or "below" the second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, the first feature being "above", "above" and "above" the second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. The first feature being "below", "below" and "below" the second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0040] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model embodiment. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0041] Combination Figures 1 to 6 As shown, the water heater according to the embodiment of the utility model includes a shell 90, a box body 10, a heat exchanger 20, a water circuit assembly 30 and a circuit board 75; the shell 90 includes a main body 91 and a side cover 92 detachably mounted on the main body 91; the box body 10 is installed in the shell 90, and the box body 10 is provided with a liquid storage space 11; the heat exchanger 20 is installed in the box body 10, and the heat exchanger 20 includes a heat exchange tube 21, and the heat exchange tube 21 is used to circulate water used by the user, and the water in the heat exchange tube 21 and the water in the liquid storage space 11 are heat exchanged; the water circuit assembly 30 is installed on the side of the box body 10 corresponding to the side cover 92, and the water circuit assembly 30 includes a water inlet pipe 31 and a water outlet pipe 32, and the water inlet pipe 31 and the water outlet pipe 32 are both connected to the heat exchange tube 21; the circuit board 75 is installed on the side of the box body 10 corresponding to the side cover 92.

[0042] According to the water heater of the embodiment of the utility model, fresh water from the outside enters the heat exchanger 20 from the water inlet pipe 31, and exchanges heat with the heated water in the liquid storage space 11. The high-temperature water after heat exchange flows out from the outlet end of the heat exchanger 20 to the water outlet pipe 32 for user use; the circuit board 75 is used to control the operation of components in the water heater (such as the valve body of the water circuit assembly 30 or the heater in the box body 10, etc.); and in the process of installing and repairing the water heater, the staff can remove the side cover 92 from the main body 91 and then repair the circuit board 75 or the water circuit assembly 30.

[0043] It should be noted that in the related art, the water circuit components 30 (water inlet pipe 31, water outlet pipe 32 and sewage pipe 33, etc.) and the electronic control components (circuit board 75, display panel assembly 93, etc.) exposed on the outside of the inner tank (corresponding to the box body 10 of the present application) on the water heater usually need to be disassembled and assembled from different positions on the water heater, which causes the problem of inconvenience in installation and maintenance.

[0044] According to the water heater of the embodiment of the utility model, by arranging the circuit board 75 and the water circuit assembly 30 on the side of the box body 10 corresponding to the side cover 92, the staff only needs to open the side cover 92 to install and maintain the circuit board 75 or the water circuit assembly 30, and there is no need to move the position during the installation and maintenance process, which effectively improves the convenience of installation and maintenance; and when the circuit board 75 and the water circuit assembly 30 are directly electrically connected (such as the circuit board 75 controls the valve body of the water circuit assembly 30), the same-side arrangement makes the debugging process of the staff simpler and more convenient; and, a side cover 92 is provided on the outer cover of the water circuit assembly 30 and the circuit board 75 to prevent external humid air from entering the outer shell 90, which affects the service life of the water circuit assembly 30 and the circuit board 75, while achieving a hidden effect and improving the user's perception.

[0045] In addition, the water used by the user is obtained by exchanging heat with the liquid in the liquid storage space 11 through the heat exchanger 20, and does not come into contact with the components (heater, valve body, etc.) in the liquid storage space 11 of the box body 10, thereby effectively ensuring the water quality of the water used by the user. At the same time, impurities or pollutants that may exist in the water used by the user will not cause pollution to the components in the liquid storage space 11 of the box body 10 (such as scale formation on the surface of the heating component), thereby effectively improving the service life of the water heater.

[0046] In this embodiment, the liquid storage space 11 of the box body 10 can also be arranged to be connected to the outside world (such as through the exhaust pipe 121) to ensure that the pressure in the liquid storage space 11 is similar to that of the outside world and no additional pressure is generated on the inner wall of the box body 10. Therefore, the box body 10 does not need to be arranged in a pressure-bearing shape (such as a barrel shape), and the shape of the box body 10 can be adaptively adjusted according to the spatial layout requirements of the location of the water heater, thereby improving space utilization.

[0047] In this embodiment, combined with the attached Figure 1 As shown, taking the cubic box 10 as an example, the water channel assembly 30 and the circuit board 75 are arranged on the right side of the box 10 (the right side of the drawing). Of course, the installation positions of the two are not limited to the right side, but can also be the left side or the upper and lower sides.

[0048] According to one embodiment of the utility model, combined Figures 2 to 6 As shown, a mounting seat 17 is fixed to the box body 10 corresponding to the side cover 92, and a heat insulation layer 18 is fixed to the side of the mounting seat 17 facing away from the side cover 92. The mounting seat 17 forms an assembly space 171 that is open away from the box body 10, and the water channel assembly 30 and the circuit board 75 are both installed in the assembly space 171, and the water channel assembly 30 and the circuit board 75 are both fixed to the box body 10 through the mounting seat 17.

[0049] In this embodiment, during the maintenance process, since the water channel assembly 30 and the circuit board 75 are both installed in the assembly space 171 formed by the mounting seat 17, the disassembly and assembly during the maintenance process can be further facilitated. Figure 1As shown, a connecting ear is provided at the water inlet pipe 31 or the water outlet pipe 32 near the mounting seat 17, and the connecting ear is used to fix the two. The connecting ear can transfer part of the weight of the water circuit assembly 30 to the mounting seat 17, so as to avoid excessive force on the interface position where the water circuit assembly 30 and the box body 10 are connected, thereby ensuring the sealing effect of the interface position; and the mounting seat 17 can also be provided with a threaded hole, and the circuit board 75 or the water circuit assembly 30 can be fixed to the mounting seat 17 by threaded fitting.

[0050] In this embodiment, the heat insulation layer 18 is used to isolate the heat of the box body 10 to prevent the heat from being transferred to the water channel assembly 30 or the circuit board 75, affecting the working process and service life of both, and preventing the staff from being scalded during maintenance.

[0051] According to one embodiment of the utility model, combined Figures 3 to 5 As shown, a foaming space 76 is formed between the box body 10 and the outer shell 90 ; the water heater further includes a foam member 77 , which is fixed between the outer shell 90 and the mounting seat 17 to isolate the assembly space 171 and the foaming space 76 .

[0052] In this embodiment, the foaming space 76 is used to place foaming material to form a foaming layer. The foaming layer is arranged around the box body 10 to achieve the thermal insulation effect of the box body 10. By arranging the foam part 77, during the use of the water heater, the foaming material or the foaming layer is prevented from overflowing from the foaming space 76 into the assembly space 171, which affects the working environment of the water channel component 30 and the circuit board 75, while ensuring that the subsequent maintenance process is not affected, and the disassembly and assembly of the water channel component 30 and the circuit board 75 are not affected.

[0053] In this embodiment, the pores of the foam member 77 are smaller than the foaming layer, thereby achieving an isolation effect. In addition, the foam member 77 is lightweight and easy to install and replace. Of course, other sealing components, such as sealing rings, may also be provided to achieve an isolation effect.

[0054] According to one embodiment of the utility model, combined Figure 6 As shown, the foam piece 77 extends toward the mounting seat 17 with an annular boss 771, and the mounting seat 17 is provided with an annular recess 172 corresponding to the annular boss 771, and the annular boss 771 and the annular recess 172 are sealed and matched. Through the cooperation of the annular boss 771 and the annular recess, the fitting area of ​​the foam piece 77 and the mounting seat 17 is increased without increasing the thickness of the foam piece 77 (along the box body 10 pointing to the side cover 92), so as to improve the isolation effect of the foam piece 77.

[0055] Of course, an annular boss 771 may be provided on the mounting seat 17 , and an annular groove may be provided on the foam member 77 accordingly; more annular bosses 771 may be provided to further increase the fitting area.

[0056] According to one embodiment of the utility model, combined Figure 1 As shown, a display panel assembly 93 is fixed to the front side of the housing 90 , and a wiring groove 772 is formed between the foam member 77 and the housing 90 . The wiring groove 772 is used to pass the wires of the display panel assembly 93 so that the wires are connected to the circuit board 75 .

[0057] In this embodiment, the display panel assembly 93 is suitable for displaying the operating parameters of the water heater (temperature, time, etc.). The user can exchange information with the circuit board 75 through the display panel assembly 93 and control the operation of the water heater. Specifically, the user can click on an option on the display panel assembly 93 (such as increasing the temperature), and the display panel assembly 93 will transmit the information to the circuit board 75 in the form of an electrical signal, and the circuit board 75 will control the corresponding component (heater) to increase the output power.

[0058] In this embodiment, by providing the wiring groove 772, the arrangement of the wiring harness connected to the display panel assembly 93 is facilitated, and installation and maintenance are facilitated.

[0059] In this embodiment, the display panel assembly 93 is located in the lower area of ​​the front side of the water heater, and the corresponding wiring groove 772 is set at the same height to shorten the length of the wiring harness; of course, when the display panel assembly 93 is set at other positions of the outer shell 90, the opening position of the wiring groove 772 can also be adjusted accordingly.

[0060] According to one embodiment of the utility model, combined Figure 6 As shown, the side of the foam piece 77 facing the side cover 92 has a first end surface 773 and a second end surface 774 that are distributed in a stepped manner. The first end surface 773 is flush with the end surface of the housing 90 , and the second end surface 774 is flush with the edge of the mounting seat 17 .

[0061] In this embodiment, the first end face 773 ensures the fit with the side cover 92 to improve the sealing effect, and the second end face 774 can be used as a criterion for judging whether the mounting seat 17 is installed in place, thereby improving the installation experience of the staff.

[0062] According to one embodiment of the utility model, combined Figure 1 As shown, the foam part 77 is provided with an avoidance gap 775, and the water inlet pipe 31 and the water outlet pipe 32 are both installed in the outer shell 90 through the avoidance gap 775; the water channel assembly 30 also includes a sewage pipe 33, and the sewage pipe 33 is installed to the sewage outlet of the outer shell 90 through the avoidance gap 775, and the sewage pipe 33 is hidden in the outer shell 90.

[0063] In this embodiment, the avoidance gap 775 ensures that the water circuit assembly 30 and the external pipeline will not be blocked by the foam part 77 when connected, thereby improving the convenience of installation. The sewage pipe 33 is hidden to avoid interference to the staff when disassembling and assembling the external pipeline, thereby improving the disassembly and assembly efficiency of the water circuit assembly 30 and the external pipeline.

[0064] In this embodiment, the outlets of the water inlet pipe 31, the water outlet pipe 32 and the sewage pipe 33 are toward the bottom of the water heater, and the corresponding avoidance gap 775 is opened at the bottom of the foam part 77. Of course, the outlets of the water inlet pipe 31, the water outlet pipe 32 and the sewage pipe 33 can also be oriented to the side, such as passing through the side cover 92.

[0065] According to one embodiment of the utility model, combined Figures 1 to 3 As shown, the mounting seat 17 is provided with a partition plate 173 , and the partition plate 173 is used to divide the assembly space 171 into a first assembly space and a second assembly space. The first assembly space is used to install the circuit board 75 , and the second assembly space is used to install the water channel assembly 30 .

[0066] In this embodiment, the partition plate 173 clearly divides the assembly space 171, realizes the water and electricity separation of the water circuit assembly 30 and the circuit board 75, avoids interference between the two respective wiring harness arrangements, and reduces the difficulty of installation and maintenance; and the separation setting effectively ensures that water leakage of the water circuit assembly 30 or leakage of the circuit board 75 will not affect the other component, thereby improving safety of use.

[0067] In this embodiment, the partition plate 173 is arranged horizontally, dividing the assembly space 171 into a first assembly space at the top and a second assembly space at the bottom; of course, the partition plate 173 can also be rotated by a certain angle, such as ninety degrees, in which case the assembly space 171 can be divided into a first assembly space on the front side and a second assembly space on the rear side.

[0068] According to one embodiment of the utility model, combined Figures 1 to 3 As shown, a mounting rail 174 is provided on one side of the partition plate 173 facing the first assembly space, and the mounting rail 174 is used to mount circuit components.

[0069] In this embodiment, the staff can pre-install the circuit components that need to be replaced on the substrate, and then slide the substrate along the installation track and electrically connect it to other components of the circuit board 75, without manually picking up individual components, thereby achieving a quick installation effect; in addition, the staff can also uniformly set the circuit components that are easily damaged during the work process on the substrate on the installation guide rail 174, which is convenient for inspection and replacement.

[0070] In this embodiment, the extension direction of the mounting rail 174 is perpendicular to the mounting seat 17 . Of course, it can also be arranged horizontally or at a certain angle to the mounting seat 17 .

[0071] According to one embodiment of the utility model, combined Figures 1 to 3 As shown, the circuit board 75 is located above the water channel assembly 30 to prevent water leakage from the water channel assembly 30 from damaging the circuit board 75 .

[0072] In one embodiment, the circuit board 75 is located at the front side of the water circuit assembly 30. This prevents the circuit board 75 from being damaged by water leakage from the water circuit assembly 30, and makes the circuit board 75 closer to the display panel assembly 93 at the front side of the water heater, making it easier to connect the wire harnesses of the two.

[0073] Finally, it should be noted that the above implementation modes are only used to illustrate the present invention, rather than to limit the present invention. Although the present invention is described in detail with reference to the embodiments, a person skilled in the art should understand that various combinations, modifications or equivalent replacements of the technical solutions of the present invention do not depart from the spirit and scope of the technical solutions of the present invention, and should be included in the scope of the claims of the present invention.

Claims

1. A water heater, characterized in that: include: A housing, comprising a main body and a side cover detachably mounted on the main body; A box body, the box body is installed in the shell, and the box body is provided with a liquid storage space; A heat exchanger is installed in the box, the heat exchanger includes a heat exchange tube, the heat exchange tube is used to circulate water used by the user, and the water in the heat exchange tube exchanges heat with the water in the liquid storage space; A water circuit assembly is installed on a side of the box body corresponding to the side cover, and the water circuit assembly includes a water inlet pipe and a water outlet pipe, and the water inlet pipe and the water outlet pipe are both connected to the heat exchange pipe; A circuit board is installed on a side of the box body corresponding to the side cover.

2. The water heater according to claim 1, characterized in that: A mounting seat is fixed to the box body corresponding to the side cover, a heat insulation layer is fixed to the side of the mounting seat facing away from the side cover, the mounting seat forms an assembly space opening facing away from the box body, the water channel assembly and the circuit board are both installed in the assembly space, and the water channel assembly and the circuit board are both fixed to the box body through the mounting seat.

3. The water heater according to claim 2, characterized in that: A foaming space is formed between the box body and the shell; The water heater also includes: A foam piece is fixed between the shell and the mounting seat and is used to isolate the assembly space from the foaming space.

4. The water heater according to claim 3, characterized in that: The foam piece has an annular boss extending toward the mounting seat, and the mounting seat is provided with an annular recess corresponding to the annular boss, and the annular boss and the annular recess are sealingly matched.

5. The water heater according to claim 3, characterized in that: A display panel assembly is fixed on the front side of the housing, and a wiring groove is formed between the foam member and the housing. The wiring groove is used for passing the wires of the display panel assembly so that the wires are connected to the circuit board.

6. The water heater according to claim 3, characterized in that: The foam piece has a first end surface and a second end surface in a stepped distribution on a side facing the side cover, the first end surface is flush with an end surface of the housing, and the second end surface is flush with an edge of the mounting seat.

7. The water heater according to claim 3, characterized in that: The foam part is provided with an avoidance gap, and the water inlet pipe and the water outlet pipe are both installed in the outer shell through the avoidance gap; the water channel assembly also includes a sewage pipe, and the sewage pipe is installed to the sewage outlet of the outer shell through the avoidance gap, and the sewage pipe is hidden in the outer shell.

8. The water heater according to any one of claims 2 to 7, characterized in that: The mounting seat is provided with a partition plate, and the partition plate is used to divide the assembly space into a first assembly space and a second assembly space, the first assembly space is used to install the circuit board, and the second assembly space is used to install the water channel component.

9. The water heater according to claim 8, characterized in that: A mounting rail is provided on one side of the partition plate facing the first assembly space, and the mounting rail is used for mounting circuit components.

10. The water heater according to any one of claims 1 to 7, characterized in that: The circuit board is located above the water channel assembly, or the circuit board is located at the front side of the water channel assembly.