A water heater end cap assembly and a water heater

Abstract

The utility model relates to domestic appliance technical field discloses a water heater end cover assembly and water heater for a kind of. The water heater end cover assembly includes end cover and maintenance cover, end cover includes annular end surface and the first appearance surface of annular end surface outer periphery ring, annular end surface includes the second appearance surface and mounting surface connected, the outside of mounting surface is recessed to the direction of the second appearance surface towards the inner bag of water heater, to form the electrical appliance chamber for installing component, and first reinforcing structure is provided on the second appearance surface;Maintenance cover includes cover body and the connecting edge connected to the outer periphery of cover body, and connecting edge is inserted in electrical appliance chamber, and cover body covers the maintenance opening of electrical appliance chamber. The water heater end cover assembly has enough strength to support inner bag and foaming pressure, and the volume of maintenance cover is smaller, can reduce its maintenance dismounting space, can reduce the material cost of water heater simultaneously.

Description

Technical Field

[0001] This utility model relates to the field of household appliance technology, and in particular to an end cap assembly for a water heater and a water heater. Background Technology

[0002] A water heater is a household or commercial electrical appliance used to heat water. Its core function is to heat cold water to the temperature set by the user using electricity, gas, solar energy or other energy sources to meet people's hot water needs for bathing, kitchen washing, heating and other purposes.

[0003] Water heaters typically consist of end caps, an outer shell, and an inner tank assembly. The inner tank assembly is housed within the outer shell, and the end caps seal the end openings of the outer shell. During the manufacturing process, materials such as polyurethane are usually injected into the space between the inner tank assembly and the outer shell using high-pressure technology, forming an insulation layer with excellent heat insulation properties to reduce heat loss. However, water heaters using this technology often suffer from the following problems:

[0004] 1) The end cap is prone to deformation and whitening under foaming pressure, which affects the appearance quality of the water heater and increases safety hazards.

[0005] 2) The end of the end cap facing away from the inner tank assembly has a mounting position for components such as the power board and thermostat. The water heater also includes a maintenance cover that can cover the components on the end cap. However, in related technologies, the maintenance cover can almost cover the entire outer side of the end cap (i.e., the side of the end cap facing away from the inner tank assembly), making the maintenance cover larger in size, requiring more space for maintenance and disassembly, and increasing the material cost of the water heater to some extent.

[0006] Therefore, there is an urgent need to propose an end cap assembly for water heaters and a water heater in order to solve the above problems. Utility Model Content

[0007] The purpose of this utility model is to provide an end cap assembly for a water heater and a water heater that has sufficient strength to support the inner tank and foaming pressure, and the maintenance cover is small in size, which can reduce the space required for maintenance and disassembly, and at the same time reduce the material cost of the water heater.

[0008] To achieve the above objectives, the present invention adopts the following technical solution:

[0009] An end cap assembly for a water heater, comprising:

[0010] An end cap includes an annular end face and a first outer surface surrounding the annular end face. The annular end face includes a second outer surface and a mounting surface connected to each other. The outer side of the mounting surface is recessed relative to the second outer surface towards the inner tank of the water heater, thereby forming an electrical compartment for installing components. A first reinforcing structure is provided on the second outer surface.

[0011] A maintenance cover includes a cover body and a connecting edge connected to the periphery of the cover body. The connecting edge is inserted into the electrical compartment, and the cover body covers the maintenance opening of the electrical compartment.

[0012] As a preferred embodiment of the end cap assembly for water heaters provided by this utility model, the ratio of the projected area of ​​the second outer surface on the annular end face to the area of ​​the annular end face is greater than or equal to 50%.

[0013] As a preferred embodiment of the end cap assembly for water heaters provided by this utility model, the first reinforcing structure includes a plurality of first strip ribs, which are arranged parallel to each other and spaced apart on the second outer surface.

[0014] As a preferred embodiment of the end cap assembly for water heater provided by this utility model, a plurality of first strip ribs are disposed on the first side of the second outer surface, and a strip groove is provided on the second side of the second outer surface corresponding to the position of each first strip rib.

[0015] In this configuration, one of the first side and the second side faces the inner liner, while the other faces away from the inner liner.

[0016] As a preferred embodiment of the end cap assembly for water heater provided by this utility model, the distance L1 between two adjacent first strip ribs is less than or equal to 5mm;

[0017] And / or, the width L2 of the first strip is 8mm to 12mm.

[0018] As a preferred embodiment of the end cap assembly for water heaters provided by this utility model, a second reinforcing structure is provided on the inner side of the mounting surface.

[0019] As a preferred embodiment of the end cap assembly for water heaters provided by this utility model, the second reinforcing structure includes an arc-shaped rib and / or a second strip-shaped rib.

[0020] As a preferred embodiment of the end cap assembly for water heater provided by this utility model, the electrical compartment is provided with a plurality of limiting ribs, the plurality of limiting ribs are spaced apart along the outline of the electrical compartment, and a plurality of limiting grooves are formed between the limiting ribs and the inner wall of the electrical compartment, and the connecting edge is located in the limiting grooves.

[0021] As a preferred embodiment of the end cap assembly for water heaters provided by this utility model, each of the limiting ribs is provided with a snap-fit ​​hole, and the connecting edge is provided with a buckle corresponding to each snap-fit ​​hole, and the buckle snaps into the corresponding snap-fit ​​hole.

[0022] This utility model also provides a water heater, including a shell, an inner tank, and an end cap assembly for water heaters as described above, wherein the inner tank is housed in the shell, and the end cap assembly for water heaters is used to seal the end opening of the shell.

[0023] The beneficial effects of this utility model are as follows:

[0024] The water heater end cap assembly provided by this utility model divides the annular end face of the end cap into a connected second outer surface and a mounting surface. The second outer surface is exposed, and the maintenance cover only covers the mounting surface, thereby greatly reducing the volume of the maintenance cover, reducing the space for maintenance and disassembly, and reducing the manufacturing cost of the water heater end cap assembly to a certain extent. By setting a first reinforcing structure on the second outer surface, the structural strength of the end cap can be increased, so that it has sufficient strength to support the inner tank and foaming pressure, ensuring the appearance quality of the water heater and reducing safety hazards.

[0025] The water heater provided by this utility model, by applying the above-mentioned end cap assembly for water heaters, can ensure the appearance quality of the water heater, avoid deformation and whitening of the end cap under foaming pressure, and at the same time reduce the volume of the maintenance cover and reduce the manufacturing cost of the water heater. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on the content of the embodiments of this utility model and these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of the water heater provided in this embodiment of the utility model;

[0028] Figure 2 This is an exploded structural diagram of the water heater provided in this embodiment of the utility model;

[0029] Figure 3 This is an exploded structural diagram of the end cap assembly for a water heater provided in this embodiment of the utility model;

[0030] Figure 4 This is one of the structural schematic diagrams of the end cap provided in this embodiment of the utility model;

[0031] Figure 5 This is a schematic diagram of the structure of the maintenance cover provided in an embodiment of this utility model;

[0032] Figure 6 This is the second schematic diagram of the end cap structure provided in this embodiment of the utility model;

[0033] Figure 7 yes Figure 4 A partial structural diagram;

[0034] Figure 8 yes Figure 5 A partial structural diagram;

[0035] Figure 9 This is a partial cross-sectional view of the end cap and outer shell assembly provided in an embodiment of the present invention.

[0036] Figure label:

[0037] 100. Water heater end cap assembly;

[0038] 10. End cap; 11. Annular end face; 111. Second outer appearance surface; 1101. First side; 1102. Second side; 1111. First strip rib; 1112. Strip groove; 112. Mounting surface; 1120. Electrical compartment; 1121. Wire pressing structure; 1122. Limiting rib; 11221. Snap-fit ​​hole; 1123. Limiting groove; 1124. Mounting opening; 1125. Recessed area; 11251. First mounting groove; 11252. Second mounting groove; 11253. Limiting hole; 11254. Cable management groove; 1126. Protrusion; 1127. Second reinforcing structure; 11271. Arc-shaped rib; 11272. Second strip rib; 12. First outer appearance surface; 121. Annular groove; 13. First connecting skirt; 131. First notch; 14. Second connecting skirt;

[0039] 20. Maintenance cover; 21. Cover body; 22. Connecting edge; 221. Buckle; 2211. Guide slope;

[0040] 200. Outer shell; 201. Receiving chamber; 202. Annular inner flange;

[0041] 300. Inner liner. Detailed Implementation

[0042] Before explaining any embodiment of the present invention in detail, it should be understood that the present invention is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0043] In this invention, the terms "comprising," "including," "having," or any other variations thereof are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0044] In this invention, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three situations: A exists alone, A and B exist simultaneously, and B exists alone. Additionally, in this invention, the character " / " generally indicates that the preceding and following related objects have an "and / or" relationship.

[0045] In this invention, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0046] In this invention, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the value and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0047] In this invention, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can be performed by one part, one component, or a combination of multiple parts.

[0048] In this utility model, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this utility model. Furthermore, in the context, it should be understood that when one element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent the direct orientation but can also be understood as the lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0049] Figure 1 A schematic diagram of the structure of the water heater provided in this embodiment is shown. Figure 2 A schematic diagram of the exploded structure of the water heater provided in this embodiment is shown. Figures 1-2 As shown, this embodiment provides a water heater. In some embodiments, the water heater may be an electric water heater.

[0050] Specifically, the water heater provided in this embodiment includes an outer shell 200, an inner tank 300, and an end cap 10. The outer shell 200 has a receiving chamber 201, and the inner tank 300 is housed in the receiving chamber 201 of the outer shell 200. The end cap 10 has an installation port 1124, which covers the end opening of the receiving chamber 201. The inlet of the inner tank 300 is installed at the installation port 1124, thereby realizing the housing, limiting, and protection of the inner tank 300.

[0051] Furthermore, the water heater also includes a maintenance cover 20. An electrical compartment 1120 for installing components is provided on the side of the end cover 10 opposite to the inner tank 300. The maintenance cover 20 seals the maintenance opening of the electrical compartment 1120 to shield and protect the components inside the electrical compartment 1120. The end cover 10 and the maintenance cover 20 together form an end cover assembly 100 for the water heater.

[0052] For ease of description, the side of the end cap 10 facing the inner liner 300 is defined as the inner side of the end cap 10, and the side of the end cap 10 away from the inner liner 300 is defined as the outer side of the end cap 10. That is to say, the electrical compartment 1120 is located on the outer side of the end cap 10.

[0053] Optionally, the maintenance cover 20 is detachably mounted on the end cover 10 to facilitate disassembly by operators for inspection and maintenance of components installed in the electrical compartment 1120. In this embodiment, the maintenance cover 20 is provided with a buckle 221, and the end cover 10 is provided with a snap-fit ​​hole 11221. The buckle 221 engages with the snap-fit ​​hole 11221, thereby achieving a detachable connection between the maintenance cover 20 and the end cover 10. The structure is simple, easy to assemble and disassemble, and the connection is secure. Of course, in other embodiments, the buckle 221 can also be provided on the end cover 10, and the snap-fit ​​hole 11221 can be provided on the maintenance cover 20, achieving the same effect. Furthermore, this embodiment does not limit the detachable connection method between the maintenance cover 20 and the end cover 10; they can also be connected by screws, plugs, or other methods.

[0054] Water heaters in related technologies typically suffer from the following problems: 1) The end caps are prone to deformation and whitening under foaming pressure, affecting the appearance quality of the water heater and increasing safety hazards. 2) The maintenance cover almost covers the entire outer side of the end cap, making the maintenance cover bulky, requiring more space for disassembly and repair, and increasing the material cost of the water heater to some extent.

[0055] To address the aforementioned issues, this embodiment also provides an end cap assembly 100 for a water heater, which has sufficient strength to support the inner tank 300 and the foaming pressure. Furthermore, the maintenance cover 20 has a small volume, reducing the space required for maintenance and disassembly, while also lowering the material cost of the water heater. The following is in conjunction with… Figures 3-6 This embodiment provides a detailed description of the specific structure of the end cap assembly 100 for a water heater.

[0056] Figure 3 An exploded structural diagram of the end cap assembly 100 for a water heater provided in this embodiment is shown. Figure 4 One of the structural schematic diagrams of the end cap 10 provided in this embodiment is shown. Figure 5 A structural schematic diagram of the maintenance cover 20 provided in this embodiment is shown. (See attached diagram.) Figures 3-5 As shown, the water heater end cap assembly 100 provided in this embodiment includes an end cap 10 and a maintenance cover 20. The end cap 10 includes an annular end face 11 and a first outer surface 12 surrounding the annular end face 11. The annular end face 11 includes a second outer surface 111 and a mounting surface 112 connected to each other. The outer side of the mounting surface 112 is recessed relative to the second outer surface 111 towards the inner tank 300 of the water heater, thereby forming the aforementioned electrical chamber 1120. A first reinforcing structure is provided on the second outer surface 111. The maintenance cover 20 includes a cover body 21 and a connecting edge 22 connected to the outer periphery of the cover body 21. The connecting edge 22 is inserted into the electrical chamber 1120, and the cover body 21 covers the maintenance opening of the electrical chamber 1120. A buckle 221 is provided on the connecting edge 22.

[0057] The water heater end cap assembly 100 provided in this embodiment divides the annular end face 11 of the end cap 10 into a connected second outer surface 111 and a mounting surface 112. The second outer surface 111 is exposed, and the maintenance cover 20 only covers the mounting surface 112, thereby greatly reducing the volume of the maintenance cover 20, reducing the space for maintenance and disassembly, and reducing the manufacturing cost of the water heater end cap assembly 100 to a certain extent. By setting a first reinforcing structure on the second outer surface 111, the structural strength of the end cap 10 can be increased so that it has sufficient strength to support the inner tank 300 and the foaming pressure, ensuring the appearance quality of the water heater and reducing safety hazards.

[0058] In this embodiment, the mounting port 1124 is located on the mounting surface 112. That is, when the maintenance cover 20 is placed on the end cover 10, the maintenance cover 20 can simultaneously cover the mounting port 1124 to prevent the inner tank 300 from being exposed, thereby ensuring the aesthetic appearance and safety of the entire water heater.

[0059] Optionally, the ratio of the projected area of ​​the second outer surface 111 on the annular end face 11 to the area of ​​the annular end face 11 is greater than or equal to 50%. Compared with the maintenance cover in the prior art, the above design can reduce the volume of the maintenance cover 20 by more than 50%, so as to achieve the effect of sealing the electrical compartment 1120 while further reducing the volume of the maintenance cover 20 and reducing the manufacturing cost of the water heater. For example, the ratio of the projected area of ​​the second outer surface 111 on the annular end face 11 to the area of ​​the annular end face 11 can be set to 50%, 52%, 55%, 56%, 58%, 60%, 62%, 65%, 66%, 58%, 70%, 72%, 75%, etc. Of course, this embodiment does not limit the specific ratio of the projected area of ​​the second outer surface 111 on the annular end face 11 to the area of ​​the annular end face 11. Designers can adjust it according to actual product requirements, but it is necessary to ensure that the cover body 21 of the maintenance cover 20 can completely cover the maintenance opening of the electrical compartment 1120.

[0060] like Figure 3 and Figure 4 As shown, the first reinforcing structure includes a plurality of first strip ribs 1111, which are arranged parallel to each other and spaced apart on the second outer surface 111. The plurality of first strip ribs 1111 can further improve the structural strength of the end cap 10, and the structure of the first strip ribs 1111 is simple and easy to process and manufacture.

[0061] Figure 6 A second schematic diagram of the end cap 10 provided in this embodiment is shown. (See attached diagram.) Figure 6 and combined Figure 4As shown, multiple first strip ribs 1111 are disposed on the first side 1101 of the second outer surface 111, and a strip groove 1112 is disposed on the second side 1102 of the second outer surface 111 corresponding to the position of each first strip rib 1111. This arrangement ensures that the second outer surface 111 has a uniform wall thickness, resulting in a more uniform stress distribution when subjected to external impact, reducing the likelihood of localized deformation or cracking. In this embodiment, the first side 1101 of the second outer surface 111 is disposed away from the inner liner 300, and the second side 1102 of the second outer surface 111 is disposed towards the inner liner 300. That is, the first side 1101 of the second outer surface 111 is the outer side of the second outer surface 111, and the second side 1102 of the second outer surface 111 is the inner side of the second outer surface 111. Of course, in other embodiments, the first strip rib 1111 can be disposed on the second side 1102 of the second appearance surface 111, and the strip groove 1112 can be disposed on the first side 1101 of the second appearance surface 111, which can also achieve the above effect.

[0062] Optionally, the spacing L1 between two adjacent first ribs 1111 is less than or equal to 5mm. This design allows multiple first ribs 1111 (or multiple grooves 1112) to mutually restrain each other during the injection molding process of the end cap 10, significantly reducing the probability of defects such as out-of-roundness or deformation in the molded end cap 10, thereby ensuring accurate and rapid assembly between the outer shell 200 and the end cap 10. For example, the value of L1 can be 0.5mm, 1.0mm, 1.5mm, 2.0mm, 2.5mm, 3.0mm, 3.5mm, 4.0mm, 4.5mm, 5.0mm, etc. Of course, in other embodiments, the value of L1 is not limited to the above ranges, and designers can adjust the specific value of L1 according to actual product requirements.

[0063] Optionally, the width L2 of the first strip 1111 is 8mm to 12mm. That is, the width of the strip groove 1112 is 8mm to 12mm. This width range ensures that the end cap 10 has sufficient bearing strength and also ensures the restraining effect between the multiple first strip 1111, further reducing the probability of defects such as out-of-roundness and deformation during the molding process of the end cap 10. For example, L2 can be 8.0mm, 8.5mm, 9.0mm, 9.5mm, 10.0mm, 10.5mm, 11.0mm, 11.5mm, 12.0mm, etc. Of course, in other embodiments, L2 is not limited to the above range, and designers can adjust it according to actual product requirements.

[0064] Figure 7 It shows Figure 4 A partial structural diagram. Figure 8 It shows Figure 5A schematic diagram of a local structure. (For example...) Figures 7-8 and combined Figure 3 As shown, multiple limiting ribs 1122 are provided inside the electrical compartment 1120. These ribs are spaced apart along the contour of the electrical compartment 1120 and form multiple limiting grooves 1123 with the inner wall of the electrical compartment 1120. The connecting edge 22 is confined within the limiting grooves 1123. A snap fastener 221 is provided on the connecting edge 22, and a snap-fit ​​hole 11221 is provided on the limiting rib 1122. By providing the limiting ribs 1122, not only is the connection between the end cover 10 and the maintenance cover 20 improved, but the waterproof sealing of the water heater end cover assembly 100 is also improved, preventing external moisture from flowing into the electrical compartment 1120 through the gap between the end cover 10 and the maintenance cover 20, thus affecting the performance of the components in the electrical compartment 1120.

[0065] Optionally, the side of the buckle 221 facing away from the cover body 21 is provided with a guide slope 2211, which serves to guide the assembly of the buckle 221 and the snap-fit ​​hole 11221. When the connecting edge 22 is inserted into the limiting groove 1123, the limiting rib 1122 can deform along the guide slope 2211, thereby squeezing the buckle 221 into the limiting groove 1123. When the buckle 221 is aligned with the snap-fit ​​hole 11221, the buckle 221 can slide into the snap-fit ​​hole 11221 and snap into it. At this time, the limiting rib 1122 resets, thereby cooperating with the inner wall of the electrical compartment 1120 to limit the connecting edge 22.

[0066] like Figure 6 As shown, a second reinforcing structure 1127 is provided on the inner side of the mounting surface 112 to further increase the structural strength of the end cap 10 and prevent it from deforming and turning white under foaming pressure.

[0067] In this embodiment, the second reinforcing structure 1127 includes a plurality of second strip ribs 11272 and a plurality of arc ribs 11271. The arc ribs 11271 are arranged radially at intervals along the mounting opening 1124, and the plurality of second strip ribs 11272 are arranged circumferentially at intervals along the mounting opening 1124, with the second strip ribs 11272 and arc ribs 11271 arranged in a crisscross pattern. The arc ribs 11271 provide good rigidity and strength in both the radial and circumferential directions, preventing the end cap 10 from expanding outwards or collapsing inwards, and also possess good torsional rigidity. The second strip ribs 11272 and arc ribs 11271 work together to form a mesh structure, which can effectively transmit and disperse loads in multiple directions, significantly improving the overall rigidity and load-bearing capacity of the end cap 10 under complex working conditions, thereby suppressing local deformation.

[0068] In other embodiments, the second reinforcing structure 1127 may consist only of the second strip 11272, and the number of the second strip 11272 is set to at least two. The at least two second strip 11272 are arranged circumferentially spaced along the mounting opening 1124, and each second strip 11272 extends radially along the mounting opening 1124. The structure of the second strip 11272 is relatively simple and easy to process and manufacture.

[0069] In some other embodiments, the second reinforcing structure 1127 may consist only of arcuate ribs 11271. The arcuate ribs 11271 are capable of accommodating multi-directional loads, exhibiting smaller deformation under the same load, resulting in higher structural stability and a more aesthetically pleasing shape. In this example, the number of arcuate ribs 11271 is at least two, with at least two arcuate ribs 11271 arranged radially spaced along the mounting opening 1124 to further enhance the structural strength of the end cap 10.

[0070] like Figure 4 and Figure 6 As shown, the electrical compartment 1120 is provided with a first mounting slot 11251 for installing the power supply board and a second mounting slot 11252 for installing the thermostat. The first mounting slot 11251 and the second mounting slot 11252 provide positioning and limiting functions for the installation of the power supply board and the thermostat, ensuring that both can be installed accurately, while preventing the power supply board and the thermostat from shifting or deviating during the use of the water heater.

[0071] In this embodiment, the first mounting groove 11251 extends along the axial direction of the mounting opening 1124, meaning that the power board is inserted into the first mounting groove 11251 along the axial direction of the mounting opening 1124. This arrangement can save the installation space of the power board and improve the space utilization rate within the electrical compartment 1120.

[0072] Optionally, at least one limiting hole 11253 is provided around the first mounting groove 11251 within the electrical compartment 1120. A limiting member passes through the limiting hole 11253, and the end portion of the limiting member abuts against the top of the power board. By providing the limiting member, the power board installed in the first mounting groove 11251 can be limited to ensure that the power board will not loosen or shift, which is beneficial to maintaining the stability and reliability of the electrical connection. In this embodiment, the limiting hole 11253 is a threaded hole, and the limiting member can be a limiting screw. The limiting screw is threaded into the limiting hole 11253, and the screw head of the limiting screw is limited and abuts against the top of the power board. The structure is simple and easy to disassemble and assemble.

[0073] Optionally, the electrical compartment 1120 is also provided with a wire clamping structure 1121, which is used to fix and constrain the power cord to ensure that the power cord does not loosen or shift, thus helping to maintain the stability and reliability of the electrical connection.

[0074] Optionally, the electrical room 1120 is also equipped with cable management channels 11254 for arranging wire harnesses to ensure the tidiness of the electrical room 1120. Optionally, the number of cable management channels 11254 is at least two. This embodiment does not limit the specific number and arrangement of cable management channels 11254, and designers can adjust the number and arrangement of cable management channels 11254 according to actual needs. For example, the number of cable management channels 11254 can be two, three, four, or even more.

[0075] like Figures 3-5 As shown, in this embodiment, the inner bottom of the electrical compartment 1120 is recessed towards the inner liner 300 to form a recessed area 1125. The first mounting groove 11251, the second mounting groove 11252, the limiting hole 11253, and the cable management groove 11254 are all disposed in the recessed area 1125 so that there is enough space in the electrical compartment 1120 to install components such as the power board and the thermostat.

[0076] Optionally, a protrusion 1126 is formed on the inner side of the mounting surface 112 corresponding to the recessed area 1125. The recessed depth of the recessed area 1125 relative to the outer side of the mounting surface 112 is the same as the protrusion height of the protrusion 1126 relative to the inner side of the mounting surface 112, thereby ensuring that the end cap 10 has a uniform wall thickness so that the stress distribution is more uniform when it is subjected to external impact, and it is less likely to experience local deformation or cracking.

[0077] like Figure 2 and Figure 4 As shown, to facilitate the assembly between the inner liner 300 and the end cap 10, a first connecting skirt 13 extends along its axial direction at the mounting opening 1124, and a first notch 131 is provided on the first connecting skirt 13. When the inner liner 300 and the end cap 10 are assembled or during the overall foaming process, the first notch 131 can provide sufficient space for the inner liner 300 to shift or deform, thereby ensuring the assembly effect between the inner liner 300 and the end cap 10.

[0078] Figure 9 A partial cross-sectional view of the assembly of the end cap 10 and the outer casing 200 provided in this embodiment is shown. Figure 9 and combined Figure 6As shown, an annular groove 121 is formed on the outer side of the first outer surface 12, and a second connecting skirt 14 extends from the edge of the first outer surface 12 towards the inner liner 300. An annular inward flange 202 is provided at the end of the outer shell 200. The second connecting skirt 14 is inserted into the receiving cavity 201 of the outer shell 200, and the annular inward flange 202 is engaged in the annular groove 121, thereby ensuring the stability of the connection between the end cap 10 and the outer shell 200 and preventing the foam material from overflowing. Optionally, in this embodiment, the second connecting skirt 14 is a semi-circular structure. This design facilitates the assembly between the end cap 10 and the outer shell 200 and ensures the roundness of the end cap 10 after assembly. Of course, in other embodiments, the second connecting skirt 14 can also be set as a full circle structure, and a second notch can be provided on the second connecting skirt 14, which can also achieve the above effect.

[0079] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that the above embodiments do not limit this utility model in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this utility model.

Claims

1. An end cap assembly for a water heater, the end cap assembly comprising: include: The end cap (10) includes an annular end face (11) and a first outer surface (12) surrounding the annular end face (11). The annular end face (11) includes a second outer surface (111) and a mounting surface (112) connected to each other. The outer side of the mounting surface (112) is recessed relative to the second outer surface (111) towards the inner tank (300) of the water heater, thereby forming an electrical chamber (1120) for installing components. A first reinforcing structure is provided on the second outer surface (111). The maintenance cover (20) includes a cover body (21) and a connecting edge (22) connected to the outer periphery of the cover body (21). The connecting edge (22) is inserted into the electrical compartment (1120), and the cover body (21) covers the maintenance opening of the electrical compartment (1120).

2. The end cover assembly for a water heater of claim 1, wherein, The ratio of the projected area of ​​the second outer surface (111) on the annular end face (11) to the area of ​​the annular end face (11) is greater than or equal to 50%.

3. The end cover assembly for a water heater of claim 1, wherein, The first reinforcing structure includes a plurality of first strip ribs (1111), which are arranged in parallel and spaced apart on the second outer surface (111).

4. The end cover assembly for a water heater of claim 3, wherein, Multiple first strip ribs (1111) are disposed on the first side (1101) of the second outer surface (111), and a strip groove (1112) is provided on the second side (1102) of the second outer surface (111) corresponding to the position of each first strip rib (1111); Of these, one of the first side (1101) and the second side (1102) is disposed facing the inner liner (300), and the other is disposed away from the inner liner (300).

5. The end cover assembly for a water heater of claim 3, wherein, The spacing L1 between two adjacent first strip bars (1111) is less than or equal to 5 mm; And / or, the width L2 of the first strip (1111) is 8mm to 12mm.

6. The end cover assembly for a water heater of claim 1, wherein, A second reinforcing structure (1127) is provided on the inner side of the mounting surface (112).

7. The end cover assembly for a water heater of claim 6, wherein, The second reinforcing structure (1127) includes an arc-shaped rib (11271) and / or a second strip rib (11272).

8. The end cover assembly for a water heater of any one of claims 1-7, wherein, The electrical compartment (1120) is provided with a plurality of limiting ribs (1122), which are spaced apart along the outline of the electrical compartment (1120) and form a plurality of limiting grooves (1123) with the inner wall of the electrical compartment (1120). The connecting edge (22) is limited in the limiting grooves (1123).

9. The end cover assembly for a water heater of claim 8, wherein, Each of the limiting ribs (1122) is provided with a snap-fit ​​hole (11221), and the connecting edge (22) is provided with a buckle (221) corresponding to each snap-fit ​​hole (11221), and the buckle (221) is snapped into the corresponding snap-fit ​​hole (11221).

10. A water heater, characterized by The device includes a housing (200), an inner tank (300), and an end cap assembly for a water heater as described in any one of claims 1 to 9, wherein the inner tank (300) is housed within the housing (200), and the end cap assembly for a water heater is used to cover the end opening of the housing (200).

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