Box assembly and energy storage device

Abstract

The utility model provides a box body assembly and an energy storage device, the box body assembly is used for the energy storage device, and the box body assembly comprises a box body provided with an opening; the plugging piece is mounted on the box body, at least part of the plugging piece is mounted in the opening, and the opening is plugged; the elastic sealing piece is mounted between the plugging piece and the inner wall of the box body so as to seal a gap between the plugging piece and the box body; and the box cover covers the box body and is used for opening or closing the opening. According to the structure, the box cover does not participate in sealing of the box body, so that structures such as nut fixing columns and screw columns do not need to be additionally arranged on the box cover, riveting marks can be prevented from being formed on the box cover, and the high-quality appearance requirement of the box cover is met. In addition, due to the fact that the box cover is a main appearance part, the replacement requirement of the box cover is relatively large, and due to the structure, the structure of the box cover is simplified, and therefore the replacement cost of the box cover can be reduced.

Description

Technical Field

[0001] This application relates to the field of energy storage technology, and more specifically, to a housing assembly and an energy storage device. Background Technology

[0002] In related solutions, the sealing of the user's energy storage PCS (Power Conversion System), PACK (usually referring to the battery pack), and photovoltaic inverter enclosure structure is basically achieved by sealing the enclosure cover with a sealing ring. This sealing method requires riveting or welding nuts and bolts to the enclosure cover, resulting in visible riveting marks and failing to meet high-quality aesthetic requirements. Furthermore, since the enclosure cover is a primary exterior component and also part of the sealing system, its complex structure makes replacement costly.

[0003] Therefore, how to achieve a sealed enclosure while ensuring the high-quality appearance of the lid and reducing the replacement cost of the lid has become an urgent problem to be solved. Utility Model Content

[0004] This application aims to at least address the problems of poor appearance quality and high replacement costs of the enclosure cover of energy storage devices in existing or related technologies.

[0005] Therefore, the first aspect of this application is to propose a housing assembly.

[0006] The second aspect of this application is to propose an energy storage device.

[0007] An embodiment of the first aspect of this application provides a housing assembly for an energy storage device. The housing assembly includes: a housing having an opening; a sealing member installed on the housing, at least partially installed within the opening, and sealing the opening; an elastic seal installed between the sealing member and the inner wall of the housing to seal the gap between the sealing member and the housing; and a housing cover installed on the housing for opening or closing the opening.

[0008] The enclosure assembly provided according to embodiments of this application is used in energy storage devices, such as battery packs and inverters, as a housing component for these devices. The enclosure assembly specifically includes a housing and a cover. The housing forms a receiving space to accommodate other components, and the cover is used to open and close the opening of the housing. To ensure the internal sealing of the housing, a sealing assembly is provided at the opening of the housing. The sealing assembly includes a sealing element, which is directly installed at the opening of the housing to seal it. Simultaneously, to ensure the seal between the housing and the sealing element, an additional elastic sealing element is provided between the outer wall of the sealing element and the housing. This elastic sealing element seals the gap between the sealing element and the housing, resulting in a better seal. In this structure, the cover does not participate in the sealing of the housing, thus eliminating the need for additional nut fixing posts, screw posts, or other structures on the cover. This avoids riveting marks on the cover and ensures a high-quality appearance. Furthermore, since the lid is a major exterior component, its replacement demand is relatively high. This structure simplifies the lid's structure, thereby reducing the replacement cost of the lid.

[0009] In any of the above embodiments, the elastic seal may optionally be a sealing ring fitted onto the sealing member.

[0010] In this embodiment, the elastic seal is configured as an elastic sealing ring, making it a single, integral structure, which facilitates disassembly and cleaning. Of course, the elastic seal can also be configured as a separate structure.

[0011] The elastic seal can be a rubber component or a silicone component.

[0012] In any of the above embodiments, optionally, a limiting groove is provided on the sealing member, and the elastic seal is installed in the limiting groove.

[0013] In this embodiment, a limiting groove is provided on the outer wall of the sealing member, and the elastic seal is installed in the limiting groove. The limiting groove enables the elastic seal to be positioned on the sealing member, thereby allowing the elastic seal to be inserted into the opening of the housing along with the sealing member. Of course, the elastic seal can also be pre-positioned and installed in the opening of the housing.

[0014] In any of the above embodiments, optionally, the sealing element includes: a sealing base plate; a mounting side plate located on the edge of the sealing base plate, disposed along the axial direction of the opening, and fixedly mounted on the housing; and an elastic sealing element installed between the mounting side plate and the inner wall of the housing to seal the gap between the mounting side plate and the housing.

[0015] In this embodiment, the sealing element includes a sealing base plate and a mounting side plate. The sealing base plate seals the opening of the housing, and the mounting side plate connects the sealing element to the housing. Simultaneously, the mounting side plate compresses the elastic seal, ensuring it remains in a compressed state and thus guaranteeing its sealing effect. This structure, with the sealing element comprising a bottom and sides and a hollow interior, reduces material usage and manufacturing costs.

[0016] In any of the above embodiments, optionally, the sealing base plate and the mounting side plate are an integral structure. For example, they can be molded as a single piece. Making the sealing base plate and the mounting side plate an integral piece eliminates the need for a connection between them, resulting in a better sealing effect. Furthermore, making the sealing base plate and the mounting side plate an integral piece also reduces the number of parts, making the disassembly and assembly of the sealing component more convenient.

[0017] For example, the mounting side plate is a bend formed by bending the edge of the sealing base plate along its thickness direction.

[0018] In any of the above embodiments, optionally, the mounting side plate is connected to the housing via a first threaded connector, and the elastic seal is compressed and installed between the mounting side plate and the inner wall of the housing.

[0019] In this embodiment, the mounting side plate and the housing are connected by a first threaded connector, making the connection relatively secure and the structure relatively simple. When connecting the mounting side plate to the housing, the elastic seal needs to be compressed to ensure its sealing effect and prevent poor sealing due to insufficient compression.

[0020] Optionally, a first mounting hole is provided on the mounting side plate to facilitate the installation and fixing of the first threaded connector.

[0021] In any of the above embodiments, optionally, the thickness of the sealing base plate and the mounting side plate is greater than or equal to 0.6 mm and less than or equal to 1.8 mm.

[0022] In this embodiment, the thickness of the sealing base plate and the mounting side plate can be set as needed, for example, according to the width and length of the box, but its thickness can be specifically set in the range of 0.6mm-1.8mm.

[0023] The thickness of the sealing base plate and mounting side plate determines the overall strength of the sealing component. Greater thickness results in higher strength, making the sealing component more pressure-resistant and less prone to deformation. However, excessive thickness increases the cost of the sealing component. Therefore, considering both strength and cost, the thickness can be specifically set within the range of 0.6mm-1.8mm.

[0024] In any of the above embodiments, optionally, the sealing element is a rigid element. Further, the sealing element is a metal element.

[0025] In this embodiment, the sealing element is a rigid component, giving it a certain strength to ensure the connection strength when the sealing element and the housing are connected. Furthermore, the sealing element can be a metal component, such as aluminum, iron, or stainless steel.

[0026] In any of the above embodiments, optionally, a support protrusion is provided on the inner sidewall of the housing, and the sealing member is supported and installed on the support protrusion.

[0027] In this embodiment, to facilitate the positioning of the sealing component, a support protrusion can be provided on the inner wall of the housing to support and limit the sealing component. By supporting and limiting the sealing component with the support protrusion, the sealing component's compressive strength can be increased, thereby making the sealing component less prone to displacement.

[0028] In any of the above embodiments, optionally, a flange is provided on one end of the sealing member away from the bottom wall of the box, which is radially outwardly folded outward along the sealing member, and the flange can be limited and installed on the surface of the box where the opening is provided.

[0029] In this embodiment, a flange can also be provided at the upper end of the sealing member to achieve support and limitation between the sealing member and the box body. In this case, the box body can be set as a straight wall, that is, the support protrusion on the box body can be eliminated.

[0030] In any of the above embodiments, optionally, the lid includes: a lid top, mounted on the surface of the box body where an opening is provided; and a surrounding edge, mounted on the edge of the lid top, extending along the axial direction of the lid towards the box body, and surrounding the outer side wall of the box body; wherein the surrounding edge is connected to the box body.

[0031] In this embodiment, the lid includes a top and a surrounding edge. During installation, the surrounding edge can be fixedly installed on the box body to ensure a reliable connection between the lid and the box body, preventing the lid from detaching from the box body. This structure, which uses the surrounding edge to connect the lid and the box body, avoids drilling holes or installing screws on the top of the lid, thus ensuring the appearance quality of the top of the lid.

[0032] In any of the above embodiments, optionally, the perimeter and the housing are connected by a second threaded connector, or the perimeter and the housing are connected by a snap-fit.

[0033] In this embodiment, the edging and the housing can be connected by screws or by clips. Any method that allows for a detachable connection is acceptable. Alternatively, the edging and the housing can be connected with adhesive.

[0034] In any of the above embodiments, optionally, the perimeter and the housing are connected by a second threaded connector, the end face of the second threaded connector near the outer wall of the perimeter being located inside the outer wall of the perimeter or flush with the outer wall of the perimeter.

[0035] In this embodiment, to further ensure the appearance quality of the box cover, the outer end of the second threaded connector can be set on the inner side of the box cover or flush with the outer wall surface of the box cover. For example, a flat-head bolt can be used to connect the edge and the box body, or a recess can be set on the outer wall of the edge, and the outer end of the second threaded connector can be installed in the recess, thereby avoiding the second threaded connector from protruding from the outer wall surface of the box cover.

[0036] In any of the above embodiments, optionally, the perimeter and the housing are connected by a second threaded connector. A second mounting post is provided on the outer wall of the housing, and the second mounting post is provided with a second threaded hole adapted to the second threaded connector. The second mounting post can fix the second threaded connector, enhance the strength of the connection between the housing and the cover, and make the connection between the housing and the cover more reliable.

[0037] The second aspect of this application provides an energy storage device, comprising: a housing assembly provided by any of the technical solutions in the first aspect.

[0038] The energy storage device proposed according to the technical solution of this application, since it includes the housing assembly provided by any of the technical solutions of the first aspect, therefore, it has all the beneficial effects of the housing assembly provided by any of the technical solutions of the first aspect. Further details will not be elaborated here.

[0039] In any of the above embodiments, optionally, the energy storage device is an inverter and the enclosure assembly is the housing assembly of the inverter.

[0040] In this embodiment, the energy storage device may specifically be an inverter, and the inverter's housing assembly is specifically the enclosure assembly provided in the first aspect embodiment. In this case, the inverter's housing assembly includes a housing and a cover, and the housing and cover are sealed by a sealing member and an elastic sealing member. This structure can not only ensure the sealing effect of the inverter's housing assembly, but also ensure that the inverter's housing assembly has a good appearance quality.

[0041] In any of the above embodiments, optionally, the energy storage device is a power conversion system, and the housing assembly is the outer shell assembly of the power conversion system.

[0042] In this embodiment, the energy storage device may specifically be a power conversion system, and the housing assembly of the power conversion system is specifically the box assembly provided in the first aspect embodiment. In this case, the housing assembly of the power conversion system includes a box and a box cover, and the box and the box cover are sealed by a sealing member and an elastic sealing member. This structure can not only ensure the sealing effect of the housing assembly of the power conversion system, but also ensure that the housing assembly of the power conversion system has a good appearance quality.

[0043] In any of the above embodiments, optionally, the energy storage device is a battery pack, and the housing assembly is the outer shell assembly of the battery pack.

[0044] In this embodiment, the energy storage device may specifically be a battery pack, and the outer casing assembly of the battery pack may specifically be the housing assembly provided in the first aspect embodiment. In this case, the outer casing assembly of the battery pack includes a housing and a cover, and the housing and the cover are sealed by a sealing member and an elastic sealing member. This structure can not only ensure the sealing effect of the outer casing assembly of the battery pack, but also ensure that the outer casing assembly of the battery pack has a good appearance quality.

[0045] In addition, energy storage devices may also include inverters, battery packs, or components. In this case, the energy storage device may include multiple housing assemblies, which together form the outer casing of different parts.

[0046] Additional aspects and advantages of this application will become apparent in the following description or may be learned by practice of this application. Attached Figure Description

[0047] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0048] Figure 1 One of the structural schematic diagrams of a housing assembly according to an embodiment of the present invention is shown;

[0049] Figure 2 It shows Figure 1 A magnified schematic diagram of the partial structure at point A in the middle;

[0050] Figure 3 A second schematic diagram of the structure of the housing assembly according to an embodiment of the present invention is shown;

[0051] Figure 4 One of the structural schematic diagrams of the sealing component of the box assembly according to an embodiment of the present invention is shown;

[0052] Figure 5 This is a second schematic diagram showing the structure of the sealing component of a box assembly according to an embodiment of the present invention;

[0053] Figure 6A schematic diagram of the structure of the lid of the box assembly according to an embodiment of the present invention is shown;

[0054] Figure 7 One of the structural schematic diagrams of the housing assembly according to an embodiment of the present invention is shown;

[0055] Figure 8 The second schematic diagram shows the structure of the housing assembly according to an embodiment of the present invention;

[0056] Figure 9 The third schematic diagram shows the structure of the housing assembly according to one embodiment of the present invention;

[0057] Figure 10 The fourth schematic diagram shows the structure of the housing assembly according to an embodiment of the present invention;

[0058] Figure 11 The fifth schematic diagram shows the structure of the housing assembly according to an embodiment of the present invention;

[0059] Figure 12 The sixth schematic diagram shows the structure of the housing assembly according to one embodiment of the present invention.

[0060] Figure label:

[0061] 1. Box body, 12. Opening, 14. Support protrusion, 16. Second mounting post, 2. Sealing component, 22. Limiting slot, 24. Sealing base plate, 26. Mounting side plate, 26.2. First mounting hole, 28. Flanged edge, 29. First mounting post, 3. Elastic sealing component, 4. Box cover, 42. Top cover, 44. Surrounding edge, 5. First threaded connector, 6. Second threaded connector. Detailed Implementation

[0062] To better understand the above-mentioned objectives, features, and advantages of this application, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.

[0063] Many specific details are set forth in the following description in order to provide a full understanding of this application. However, this application may also be implemented in other ways different from those described herein. Therefore, the scope of protection of this application is not limited to the specific embodiments disclosed below.

[0064] The following reference Figures 1 to 12 This application describes a housing assembly and energy storage device provided according to some embodiments.

[0065] like Figures 1 to 12As shown, an embodiment of the first aspect of this application provides a housing assembly for an energy storage device. The housing assembly includes: a housing 1 with an opening 12; a sealing member 2 installed on the housing 1, at least partially installed in the opening 12, and sealing the opening 12; an elastic sealing member 3 installed between the sealing member 2 and the inner wall of the housing 1 to seal the gap between the sealing member 2 and the housing 1; and a housing cover 4 installed on the housing 1 for opening or closing the opening 12.

[0066] The enclosure assembly provided according to the embodiments of this application is used in energy storage devices, such as battery packs, inverters, etc., as a housing assembly for these devices. The enclosure assembly specifically includes a housing 1 and a cover 4. The housing 1 forms a receiving space to accommodate other components, and the cover 4 is used to open and close the opening 12 of the housing. To ensure the sealing of the interior of the housing 1, a sealing assembly is provided at the opening 12 of the housing 1. The sealing assembly includes a sealing member 2, which is directly installed at the opening 12 of the housing 1 to seal the opening 12. Simultaneously, to ensure the sealing between the housing 1 and the sealing member 2, an additional elastic sealing member 3 is provided between the outer wall of the sealing member 2 and the housing 1. The elastic sealing member 3 can seal the gap between the sealing member 2 and the housing 1, resulting in a better sealing effect between the sealing member 2 and the housing 1. In this structure, the lid 4 does not participate in the sealing of the box body 1. Therefore, there is no need to set additional nut fixing posts, screw posts, or other structures on the lid 4, which avoids the formation of riveting marks on the lid 4 and ensures the high-quality appearance requirements of the lid 4. In addition, since the lid 4 is a major appearance component, its replacement needs are relatively high. This structure simplifies the structure of the lid 4, thereby reducing the replacement cost of the lid 4.

[0067] The structure of the assembled box assembly is as follows: Figure 12 As shown. By Figure 12 It can be seen that the top of the box cover 4 has no screw holes, which makes its appearance quality high.

[0068] Optionally, the elastic seal 3 is a sealing ring fitted onto the sealing element 2.

[0069] In this embodiment, the elastic seal 3 is configured as an elastic sealing ring, making it a single, integral structure, which facilitates disassembly and cleaning. Of course, the elastic seal 3 can also be configured as a separate structure.

[0070] The elastic seal 3 can be a rubber component or a silicone component.

[0071] In any of the above embodiments, optionally, as Figure 2 and Figure 4 As shown, the sealing component 2 is provided with a limiting groove 22, and the elastic sealing component 3 is installed in the limiting groove 22.

[0072] In this embodiment, a limiting groove 22 is provided on the outer wall of the sealing member 2, and the elastic sealing member 3 is installed in the limiting groove 22. The limiting groove 22 enables the elastic sealing member 3 to be limited and installed on the sealing member 2, so that the elastic sealing member 3 can be inserted and installed into the opening 12 of the box along with the sealing member 2. Of course, the elastic sealing member 3 can also be pre-limited and installed in the opening 12 of the box.

[0073] In any of the above embodiments, optionally, as Figure 3 and Figure 4 As shown, the sealing component 2 includes: a sealing base plate 24; a mounting side plate 26 located on the edge of the sealing base plate 24, arranged along the axial direction of the opening 12, and fixedly installed on the housing 1; and an elastic sealing component 3 installed between the mounting side plate 26 and the inner wall of the housing 1 to seal the gap between the mounting side plate 26 and the housing 1.

[0074] In this embodiment, the sealing component 2 includes a sealing base plate 24 and a mounting side plate 26. The sealing base plate 24 can seal the opening 12 of the housing 1, and the mounting side plate 26 enables the connection between the sealing component 2 and the housing 1. Simultaneously, the mounting side plate 26 can compress the elastic sealing component 3, ensuring that the elastic sealing component 3 is in a compressed state, thereby ensuring the sealing effect of the elastic sealing component 3. This structure, which sets the sealing component 2 to include a bottom and sides, with a hollow interior, reduces the material usage of the sealing component 2 and lowers its production and processing costs.

[0075] In any of the above embodiments, optionally, as Figure 3 and Figure 4 As shown, the sealing base plate 24 and the mounting side plate 26 are an integral structure. For example, they can be molded as a single piece. Making the sealing base plate 24 and the mounting side plate 26 an integral piece eliminates the need for a connection between them, resulting in a better sealing effect. Furthermore, making the sealing base plate 24 and the mounting side plate 26 an integral piece also reduces the number of parts, making the disassembly and assembly of the sealing component 2 more convenient.

[0076] For example, the mounting side plate 26 is a bend formed by bending the edge of the sealing base plate 24 along its thickness direction.

[0077] In any of the above embodiments, optionally, as Figure 9 As shown, the mounting side plate 26 is connected to the housing 1 via the first threaded connector 5, and the elastic seal 3 is compressed and installed between the mounting side plate 26 and the inner wall of the housing 1.

[0078] In this embodiment, the mounting side plate 26 is connected to the housing 1 via the first threaded connector 5, making the connection between the two relatively secure and the structure relatively simple. When connecting the mounting side plate 26 to the housing 1, the elastic seal 3 needs to be compressed to ensure its sealing effect and prevent poor sealing due to insufficient compression.

[0079] Optionally, such as Figure 9 As shown, the mounting side plate 26 is provided with a first mounting hole 262 to facilitate the installation and fixing of the first threaded connector 5.

[0080] Optionally, such as Figure 5 and Figure 9 As shown, a first mounting post 29 is provided on the mounting side plate 26, and a first mounting hole 262 penetrates the first mounting post 29.

[0081] In any of the above embodiments, optionally, the thickness of the sealing base plate 24 and the mounting side plate 26 is greater than or equal to 0.6 mm and less than or equal to 1.8 mm.

[0082] In this embodiment, the thickness of the sealing base plate 24 and the mounting side plate 26 can be set as needed, for example, according to the width and length of the box 1, but the thickness can be specifically set in the range of 0.6mm-1.8mm.

[0083] The thickness of the sealing base plate 24 and the mounting side plate 26 determines the strength of the entire sealing component. A thicker plate results in higher strength, making the sealing component 2 more pressure-resistant and less prone to deformation, thus ensuring the connection strength between the sealing component 2 and the housing 1. However, excessive thickness increases the cost of the sealing component 2. Therefore, considering both the strength and cost of the sealing component 2, its thickness can be specifically set within the range of 0.6mm-1.8mm.

[0084] In any of the above embodiments, optionally, the sealing member 2 is a rigid member. Further, the sealing member 2 is a metal member.

[0085] In this embodiment, the sealing element 2 is a rigid component, giving it a certain strength to ensure the connection strength when the sealing element 2 is connected to the housing 1. Furthermore, the sealing element 2 can be a metal component, such as an aluminum component, an iron component, or a stainless steel component.

[0086] In any of the above embodiments, optionally, as Figure 7 As shown, a support protrusion 14 is provided on the inner side wall of the box 1, and the sealing component 2 is supported and installed on the support protrusion 14.

[0087] In this embodiment, to facilitate the positioning of the sealing component 2, a support protrusion 14 can be provided on the inner sidewall of the housing 1 to support and limit the sealing component 2. By supporting and limiting the sealing component 2 with the support protrusion 14, the sealing component 2 can be made more resistant to pressure, thereby making the sealing component 2 less prone to displacement.

[0088] Of course, it can also be like Figure 8 As shown, the inner wall of the box 1 is set as a straight wall, that is, no support protrusion 14 is provided.

[0089] In any of the above embodiments, optionally, as Figure 5 As shown, the end of the sealing member 2 away from the bottom wall of the box body 1 is provided with a flange 28 that folds outward along the radial direction of the sealing member 2. The flange 28 can be limited and installed on the surface of the box body 1 where the opening 12 is provided.

[0090] In this embodiment, a flange 28 can also be provided at the upper end of the sealing member 2 to achieve the support and limiting between the sealing member 2 and the box 1 through the flange 28. At this time, the box 1 can be set as a straight wall, that is, the support protrusion 14 on the box 1 can be removed.

[0091] In any of the above embodiments, optionally, as Figure 6 and Figure 10 As shown, the box cover 4 includes: a top cover 42, which is installed on the surface of the box body 1 where the opening 12 is provided; and a surrounding edge 44, which is installed on the edge of the top cover 42, extends along the axial direction of the box cover 4 towards the box body 1, and surrounds the outer side wall of the box body 1; wherein the surrounding edge 44 is connected to the box body 1.

[0092] In this embodiment, the lid 4 includes a top 42 and a surrounding edge 44. During installation, the surrounding edge 44 can be fixedly installed on the box body 1 to ensure a reliable connection between the lid 4 and the box body 1, preventing the lid 4 from falling off the box body 1. This structure, based on the surrounding edge 44 to achieve the connection between the lid 4 and the box body 1, avoids drilling holes or installing screws on the top 42, thereby ensuring the appearance quality of the top 42.

[0093] In any of the above embodiments, optionally, as Figure 10 As shown, the perimeter 44 and the box body 1 are connected by the second threaded connector 6, or the perimeter 44 and the box body 1 are connected by a snap fastener.

[0094] In this embodiment, the edging 44 and the housing 1 can be connected by screws or by clips. Any method that allows for a detachable connection is acceptable. Alternatively, the edging 44 and the housing 1 can be connected by adhesive.

[0095] In any of the above embodiments, optionally, as Figure 11As shown, the perimeter 44 and the housing 1 are connected by a second threaded connector 6. The end face of the second threaded connector 6 near the outer wall of the perimeter 44 is located inside the outer wall of the perimeter 44 or flush with the outer wall of the perimeter 44.

[0096] In this embodiment, in order to further ensure the appearance quality of the box cover 4, the outer end of the second threaded connector 6 can be set on the inner side of the box cover 4 or flush with the outer wall surface of the box cover 4. For example, a flat-head bolt can be used to connect the edge 44 and the box body 1, or a recessed platform can be set on the outer wall of the edge 44, and the outer end of the second threaded connector 6 can be installed in the recessed platform, so as to avoid the second threaded connector 6 protruding from the outer wall surface of the box cover 4.

[0097] In any of the above embodiments, optionally, as Figure 10 and Figure 11 As shown, the perimeter 44 and the housing 1 are connected by a second threaded connector 6. A second mounting post 16 is provided on the outer wall of the housing 1, and the second mounting post 16 is provided with a second threaded hole that is adapted to the second threaded connector 6. The second threaded connector 6 can be fixed by the second mounting post 16, which enhances the strength of the connection between the housing 1 and the cover 4, making the connection between the housing 1 and the cover 4 more reliable.

[0098] An embodiment of the second aspect of this application provides an energy storage device (not shown in the figures), comprising: a housing assembly provided in any embodiment of the first aspect.

[0099] The energy storage device proposed according to the embodiments of this application, since it includes the housing assembly provided in any embodiment of the first aspect, therefore, has all the beneficial effects of the housing assembly provided in any embodiment of the first aspect. Further details will not be elaborated here.

[0100] In any of the above embodiments, optionally, the energy storage device is an inverter and the enclosure assembly is the housing assembly of the inverter.

[0101] In this embodiment, the energy storage device may specifically be an inverter, and the inverter's housing assembly is specifically the enclosure assembly provided in the first aspect embodiment. In this case, the inverter's housing assembly includes a housing 1 and a housing cover 4, and the housing 1 and the housing cover 4 are sealed by a sealing member 2 and an elastic sealing member 3. This structure can not only ensure the sealing effect of the inverter's housing assembly, but also ensure that the inverter's housing assembly has a good appearance quality.

[0102] In any of the above embodiments, optionally, the energy storage device is a power conversion system, and the housing assembly is the outer shell assembly of the power conversion system.

[0103] In this embodiment, the energy storage device may be specifically a power conversion system, and the housing assembly of the power conversion system is specifically the box assembly provided in the first aspect embodiment. At this time, the housing assembly of the power conversion system includes a box 1 and a box cover 4, and the box 1 and the box cover 4 are sealed by a sealing member 2 and an elastic sealing member 3. This structure can not only ensure the sealing effect of the housing assembly of the power conversion system, but also ensure that the housing assembly of the power conversion system has a good appearance quality.

[0104] In any of the above embodiments, optionally, the energy storage device is a battery pack, and the housing assembly is the outer shell assembly of the battery pack.

[0105] In this embodiment, the energy storage device may specifically be a battery pack, and the outer casing assembly of the battery pack is specifically the housing assembly provided in the first aspect embodiment. In this case, the outer casing assembly of the battery pack includes a housing 1 and a housing cover 4, and the housing 1 and the housing cover 4 are sealed by a sealing member 2 and an elastic sealing member 3. This structure can not only ensure the sealing effect of the outer casing assembly of the battery pack, but also ensure that the outer casing assembly of the battery pack has a good appearance quality.

[0106] In addition, energy storage devices may also include inverters, battery packs, or components. In this case, the energy storage device may include multiple housing assemblies, which together form the outer casing of different parts.

[0107] The following describes a housing assembly in a specific embodiment.

[0108] In the relevant solutions, the sealing of the PCS (Power Conversion System) and PACK (usually referring to the battery pack) of user energy storage, as well as the structural components of the photovoltaic inverter enclosure, are basically achieved by using a top cover with a sealing ring. The structure consists of the enclosure + sealing ring + top cover as a sealed cavity.

[0109] Technical problems with the relevant solutions:

[0110] 1. The top cover needs to be riveted or welded with nuts and screws to fix the posts, resulting in riveting marks and tension marks on the surface, which cannot meet the requirements for a high-quality appearance.

[0111] 2. The top cover has holes for the display screen, which also require a sealing structure, increasing manufacturing costs;

[0112] 3. Not conducive to diverse appearance requirements: The top cover is the main appearance component and also serves as part of the seal. Due to the complex structure, the cost of changing the appearance is high.

[0113] 4. Due to the product structure, the sealing rings cannot be standardized, which increases manufacturing costs.

[0114] To address the aforementioned problems, the sealing structure designed in this application includes the following components:

[0115] Box (its structure is as follows) Figure 7 and Figure 8 (As shown): These are the product's exterior parts and structural seals;

[0116] Special seals (their structure is as follows) Figure 4 and Figure 5 (As shown): This is the core component of this structural optimization;

[0117] Top cover (its structure is as follows) Figure 6 (As shown): These are the product's exterior parts and structural seals;

[0118] Standard sealing ring (its structure is as follows) Figure 3 (As shown): This is the core component of this structural optimization;

[0119] The first screw or self-tapping screw (its structure is as follows) Figure 9 (As shown): Screws for securing the special seal;

[0120] The first nut or self-tapping nut hole (its structure is as follows) Figure 9 (As shown): This is the nut hole for fixing the special seal;

[0121] Top cover fixing rivets (the structure of which is as follows) Figure 10 and Figure 11 (As shown): These are rivets used to secure the top cover;

[0122] The second screw or self-tapping screw (its structure is as follows) Figure 10 and Figure 11 (As shown): These are screws used to secure the top cover.

[0123] The installation process of the sealing structure in this embodiment is as follows:

[0124] Step 1: Fit the circular sealing ring into the semi-circular groove on the side of the special sealing element;

[0125] Step 2: Press the special sealing component with the sealing ring installed into the front of the box opening from the front, and press it into the designed position;

[0126] Step 3: Screws are driven into the side of the enclosure to restrict the movement of the special seals;

[0127] Step 4: Put on the top cover, and use screws on the side to fix the top cover in place. This completes the assembly.

[0128] In this embodiment, the material of the dedicated seal can be aluminum, iron, stainless steel, etc., with a thickness of 0.6mm-1.8mm (depending on the length and width of the product). The dedicated seal can be fixed with a self-tapping structure to reduce manufacturing costs; for high requirements, tapped or riveted nuts can also be used.

[0129] Optionally, in the above embodiments, a flange edge structure (i.e., Figure 5 (28) The folded edge in the middle.

[0130] Alternatively, for enclosures requiring high strength or with less stringent requirements, the opening may be left unstepped, and straight walls may be used instead (e.g., Figure 8 As shown in the figure, the box structure is further streamlined to reduce the box cost.

[0131] Optionally, such as Figure 11 As shown, for cases where high aesthetic requirements are needed, the fixing screws on the side of the top cover can be made with a flat head structure or a recessed platform structure to improve the appearance.

[0132] The sealing structure provided in this embodiment features a top cover that is not fixed to the front or back of the main exterior surface of the product (using either a nut or screw). This eliminates any riveting or tension marks on the main exterior surface, ensuring high-quality appearance. Furthermore, the sealing structure eliminates the need for sealing the top cover itself, thus eliminating the need for additional sealing of openings such as the display screen. This reduces structural and manufacturing costs. The top cover structure is also unrestricted, allowing for diverse design possibilities and lowering the cost of replacing the top cover for different appearances. Additionally, this sealing structure allows for the fixing and universal use of both the sealing element and the sealing ring, achieving standardization and further reducing manufacturing costs.

[0133] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0134] Although embodiments of this application have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of this application, the scope of which is defined by the claims and their equivalents.

Claims

1. A housing assembly, characterized in that, For an energy storage device, the housing assembly includes: A housing, wherein an opening is provided on the housing; A sealing element is installed on the housing, at least partially installed inside the opening, and seals the opening; An elastic seal is installed between the sealing element and the inner wall of the housing to seal the gap between the sealing element and the housing; A lid, fitted onto the box body, is used to open or close the opening.

2. The housing assembly according to claim 1, characterized in that, The elastic sealing element is a sealing ring that is sleeved and installed on the sealing element.

3. The housing assembly according to claim 1, characterized in that, The sealing component is provided with a limiting groove, and the elastic sealing component is installed in the limiting groove.

4. The housing assembly according to claim 1, characterized in that, The sealing component includes: Sealed base plate; The mounting side plate is located on the edge of the sealing base plate, arranged along the axial direction of the opening, and fixedly installed on the housing. The elastic seal is installed between the mounting side plate and the inner wall of the housing to seal the gap between the mounting side plate and the housing.

5. The housing assembly according to claim 4, characterized in that, The sealing base plate and the mounting side plate are an integral structure; and / or The mounting side plate is connected to the housing via a first threaded connector, and the elastic seal is compressed and installed between the mounting side plate and the inner wall of the housing.

6. The housing assembly according to claim 4, characterized in that, The thickness of the sealing base plate and the mounting side plate is greater than or equal to 0.6 mm and less than or equal to 1.8 mm.

7. The housing assembly according to any one of claims 1 to 6, characterized in that, The inner wall of the housing is provided with a support protrusion, and the sealing member is supported and installed on the support protrusion; and / or The sealing member has a flange that folds outward radially along the bottom wall of the box at one end away from the box body. The flange can be positioned and installed on the surface of the box body where the opening is located.

8. The housing assembly according to any one of claims 1 to 6, characterized in that, The box cover includes: The top cover is installed on the surface of the housing where the opening is located; The edging is installed on the top edge of the cover, extends along the axial direction of the cover towards the box body, and surrounds the outer wall of the box body. The surrounding edge is connected to the box body.

9. The housing assembly according to claim 8, characterized in that, The perimeter and the box body are connected by a second threaded connector, or the perimeter and the box body are connected by a snap fastener.

10. The housing assembly according to claim 8, characterized in that, The perimeter and the box body are connected by a second threaded connector; The end face of the second threaded connector near the outer wall surface of the surrounding edge is located inside the outer wall surface of the surrounding edge, or flush with the outer wall surface of the surrounding edge, and / or A second mounting post is provided on the outer wall of the box, and a second threaded hole adapted to the second threaded connector is provided on the second mounting post.

11. An energy storage device, characterized in that, Includes the housing assembly as described in any one of claims 1 to 10.

12. The energy storage device according to claim 11, characterized in that, The energy storage device is an inverter, and the enclosure assembly is the housing assembly of the inverter; and / or The energy storage device is a power conversion system, and the housing assembly is the outer shell assembly of the power conversion system; and / or The energy storage device is a battery pack, and the housing assembly is the outer shell assembly of the battery pack.

Images