Battery pack sealing structure

Abstract

The utility model provides a battery pack sealing structure. The battery pack sealing structure comprises a box body, a cover body, a sealing part and a limiting part, a fixing part is arranged on the peripheral wall of the box body in the circumferential direction of the box body; a gap is formed between the cover body and the opening of the box body, and the cover body is provided with an installation part which is used for being connected with the fixing part in a matched mode; the sealing part extends in the circumferential direction of the box body and is arranged between the cover body and the box body, and the sealing part has a sealing state in which the sealing part is extruded by the mounting part; when the sealing component is in a sealing state, the limiting component is connected with the fixing component and the mounting component in a matched mode so that the cover body and the box body can be relatively limited. According to the utility model, the problems of large sealing structure space, many parts and complex working procedures of the battery pack in the related technology are solved.

Description

Technical Field

[0001] This application relates to the field of battery pack technology, and more specifically, to a battery pack sealing structure. Background Technology

[0002] In existing technologies for sealing power battery packs, the sealing between the housing and the top cover mainly relies on fixing methods such as bolts, FDS (friction rivet connection), riveting, and nailing. These methods typically involve a dual-seal design, using an inner sealing ring and an outer sealing ring between the housing and the top cover. For example, the housing is threaded, and the top cover is fastened to the housing with bolts and nuts, while inner and outer sealing rings are set between the housing and the top cover to achieve a sealing effect.

[0003] However, while this structure can meet the airtightness requirements to a certain extent, it has the following shortcomings:

[0004] 1. Large space occupation: The use of bolts, nuts and inner and outer sealing rings not only increases the volume of the PACK box, but also reduces the internal space of the box. For battery PACK, this means a reduction in energy density, which is especially prominent in the space-constrained vehicle environment.

[0005] 2. High processing costs: Using bolts and other fixing methods requires tapping threads on the housing, which not only increases the complexity of the processing steps but also increases manufacturing costs. Especially for mass-produced power battery packs, the increase in processing costs directly affects the competitiveness of the product.

[0006] 3. Complex assembly process: such as technical handover documents Figure 2 As shown, the existing sealing structure needs to be fixed with hardware such as bolts and nuts, which makes the assembly process cumbersome. This not only increases the working time but also increases the difficulty of after-sales service. In particular, for the sealing failure problem that may occur after the battery pack ages, multiple parts need to be disassembled and replaced, which increases the maintenance cost and time.

[0007] Instruction manual PN305183HZYWLN

[0008] 4. Limitations on sealing reliability: Although fixing methods such as bolts can ensure the sealing effect to a certain extent, under the influence of long-term use and harsh environments, the loosening of hardware and the aging of sealing rings may lead to sealing failure, affecting the safety and performance of the battery pack. Utility Model Content

[0009] The main objective of this application is to provide a battery pack sealing structure to solve the problems of large space, numerous components, and complex processes in the sealing structure of battery packs in related technologies.

[0010] To achieve the above objectives, according to one aspect of this application, a battery pack sealing structure is provided, comprising: a housing, wherein a fixing member is provided on the outer peripheral wall of the housing along its circumferential direction; a cover, which is disposed with a gap between itself and the opening of the housing, and the cover is provided with a mounting member for being adapted to be connected with the fixing member; a sealing member, which extends along the circumferential direction of the housing and is disposed between the cover and the housing, and the sealing member has a sealing state under the pressure of the mounting member; and a limiting member, which, when the sealing member is in the sealing state, cooperates with the fixing member and the mounting member respectively to limit the relative positioning of the cover and the housing.

[0011] Furthermore, the fixing component includes a first fixing member and a second fixing member arranged sequentially at intervals along the direction away from the cover, and a mounting groove extending along the circumferential direction of the box is formed between the first fixing member and the second fixing member.

[0012] Furthermore, the mounting component includes a first mounting member, a connecting member, and a second mounting member connected in sequence. The first mounting member is located on the side of the first fixing member away from the second fixing member and is connected to the cover. The second mounting member is located on the side of the second fixing member away from the first fixing member. The first mounting member and the second mounting member are arranged parallel to each other and are located on the same side of the connecting member.

[0013] Furthermore, the sealing component is disposed between the first fixing member and the first mounting member and contacts the first fixing member and the first mounting member respectively. The first mounting member is used to squeeze the sealing component to seal the gap between the opening of the cover and the box.

[0014] Instruction manual PN305183HZYWLN

[0015] Furthermore, multiple sets of mounting plates are spaced apart along the extension direction of the mounting groove. Each set of mounting plates includes two oppositely arranged mounting plates. The two mounting plates and the opposite side of the first fixing member and the second fixing member form a limiting groove. The limiting member is used to cooperate and connect with the multiple limiting grooves.

[0016] Furthermore, the connector is provided with multiple limiting holes spaced apart along its extension direction, and the multiple limiting holes are provided in a one-to-one correspondence with multiple limiting grooves.

[0017] Furthermore, the inner wall surface of the limiting hole near the housing is 2mm higher in the vertical direction than the inner wall surface of the limiting groove near the housing; and / or, the inner wall surface of the limiting hole near the cover is higher in the vertical direction than the outer wall surface of the first fixing member near the cover; and / or, the sealing component is made of silicone material.

[0018] Furthermore, the limiting component includes multiple limiting elements, which are arranged one-to-one with multiple limiting holes, so that when the sealing component is in a sealed state, the limiting elements are adapted to pass through the limiting holes and limiting grooves respectively.

[0019] Furthermore, the limiting member includes a first limiting block and a second limiting block that are perpendicularly connected to each other. The first limiting block passes through a limiting hole and is installed in a limiting groove. The second limiting block passes through a limiting hole and a portion of the second limiting block abuts against the first fixing member.

[0020] Furthermore, the fixing component and the housing are integrally formed; and / or, the mounting component and the cover are integrally formed.

[0021] The present application provides a battery pack sealing structure, including a housing, a cover, a sealing component, and a limiting component. A fixing component is provided on the outer peripheral wall of the housing along its circumferential direction. A gap is provided between the opening of the cover and the housing, and the cover is provided with an mounting component for fitting and connecting with the fixing component. The sealing component extends along the circumferential direction of the housing and is located between the cover and the housing, and the sealing component has a sealing state under the pressure of the mounting component. When the sealing component is in the sealing state, the limiting component is respectively connected with the fixing component and the mounting component to limit the relative positioning of the cover and the housing.

[0022] Instruction manual PN305183HZYWLN

[0023] In this way, only a gap needs to be reserved between the cover and the housing, eliminating the need for additional space to place bolts, nuts, etc., thus reducing the internal space required for sealing. Through the cooperation of the sealing component and the limiting component, complex bolt fixing and welding processes are eliminated, simplifying the assembly process and reducing production costs and labor time. Simultaneously, the sealing component remains in a sealed state after being compressed by the installation components, and the fixing effect of the limiting component ensures the reliability and airtightness of the seal. Compared with traditional bolt fixing methods, this structure makes disassembly and installation more convenient when maintenance or replacement of the cover is required. Even if the sealing component ages, the limiting component can still maintain the relative position of the cover and the housing, maintaining the sealing effect to a certain extent and extending the service life of the battery pack. Therefore, this utility model solves the problems of large space, numerous components, and complex processes in the sealing structure of battery packs in related technologies. Attached Figure Description

[0024] The accompanying drawings, which form part of this application, are used to provide a further understanding of the present invention. The illustrative embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an undue limitation of the present invention. In the drawings:

[0025] Figure 1 A schematic diagram of the overall structure according to an embodiment of the battery pack sealing structure of the present invention is shown;

[0026] Figure 2 An exploded view of an embodiment of the battery pack sealing structure according to the present invention is shown;

[0027] Figure 3 A side sectional view is shown, illustrating an embodiment of the battery pack sealing structure according to the present invention.

[0028] The above figures include the following reference numerals:

[0029] 10. Housing; 11. Fixing component; 12. First fixing component; 13. Second fixing component; 14. Mounting slot; 15. Mounting plate; 16. Limiting slot;

[0030] Instruction manual PN305183HZYWLN

[0031] 20. Cover; 21. Mounting component; 22. First mounting component; 23. Connector; 24. Second mounting component; 25. Limiting hole;

[0032] 30. Sealing components;

[0033] 40. Limiting component; 41. Limiting element; 42. First limiting block; 43. Second limiting block. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit this application or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0035] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.

[0036] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values ​​of the components and steps described in these embodiments do not limit the scope of this application. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values ​​should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters PN305183HZYWLN denote similar items in the following drawings; therefore, once an item is defined in one drawing, it need not be further discussed in subsequent drawings.

[0037] To address the issues of large space, numerous components, and complex processes in the sealing structure of battery packs in related technologies, this utility model provides a battery pack sealing structure.

[0038] Please refer to Figures 1 to 3 As shown, the present invention provides a battery pack sealing structure, including a housing 10, a cover 20, a sealing component 30, and a limiting component 40. A fixing component 11 is provided on the outer peripheral wall of the housing 10 along its circumferential direction. A gap is provided between the cover 20 and the opening of the housing 10, and an installation component 21 is provided on the cover 20 for fitting and connecting with the fixing component 11. The sealing component 30 extends along the circumferential direction of the housing 10 and is provided between the cover 20 and the housing 10. The sealing component 30 has a sealing state under the pressure of the installation component 21. When the sealing component 30 is in the sealing state, the limiting component 40 is respectively connected to the fixing component 11 and the installation component 21 to limit the relative positioning of the cover 20 and the housing 10.

[0039] By applying the technical solution of this utility model, only a gap needs to be reserved between the cover 20 and the housing 10, eliminating the need for additional space to place bolts, nuts, etc., thereby reducing the internal space required for sealing. Through the cooperation of the sealing component 30 and the limiting component 40, complex bolt fixing and welding processes are eliminated, simplifying the assembly process and reducing production costs and time. Simultaneously, the sealing component 30 remains sealed after being compressed by the mounting component 21, and with the fixing effect of the limiting component 40, the reliability and airtightness of the seal are ensured. Compared to the traditional bolt fixing method, this structure makes disassembly and installation more convenient when maintenance or replacement of the cover 20 is required. Even if the sealing component 30 ages, the limiting component 40 can still maintain the relative position of the cover 20 and the housing 10, maintaining the sealing effect to a certain extent and extending the service life of the battery pack. Therefore, this utility model solves the problems of large space, numerous components, and complex processes in the sealing structure of battery packs in related technologies.

[0040] Instruction manual PN305183HZYWLN

[0041] Specifically, the fixing component 11 includes a first fixing member 12 and a second fixing member 13 arranged sequentially at intervals along a direction away from the cover 20, with a mounting groove 14 extending circumferentially between the first fixing member 12 and the second fixing member 13. The first fixing member 12 is located at the opening edge of the cover 10, and the sealing component 30 is placed on the first fixing member 12 and contacts the mounting component 21 on the cover 20. During assembly, the mounting component 21 on the cover 20 can be directly fitted and connected to the first fixing member 12 and the second fixing member 13, and the mounting component 21 is used to compress the sealing component 30 to ensure a sealed state. This simplifies the assembly process, reduces assembly difficulty and time, and also reduces the internal space required for sealing within the cover 10.

[0042] like Figure 3 As shown, the mounting component 21 includes a first mounting member 22, a connecting member 23, and a second mounting member 24 connected in sequence. The first mounting member 22 is located on the side of the first fixing member 12 away from the second fixing member 13 and is connected to the cover 20. The second mounting member 24 is located on the side of the second fixing member 13 away from the first fixing member 12. The first mounting member 22 and the second mounting member 24 are arranged parallel to each other and are located on the same side of the connecting member 23.

[0043] The parallel arrangement of the first mounting member 22 and the second mounting member 24 ensures that the cover 20 is precisely aligned with the first fixing member 12 and the second fixing member 13 on the housing 10 during assembly, thereby achieving stable fixation and improving assembly efficiency and accuracy. It also ensures that the sealing component 30 is evenly compressed during cover 20 installation, avoiding excessive localized stress and improving the uniformity and reliability of the sealing effect. Furthermore, it allows for easy separation of the cover 20 during maintenance or disassembly without causing additional damage to the sealing component 30, improving the convenience of maintenance and disassembly. This design simplifies the overall structure of the cover 20, reduces the number of parts, and helps reduce production costs and improve manufacturing efficiency.

[0044] The sealing component 30 is positioned between the first fixing member 12 and the first mounting member 22, and contacts both members. The first mounting member 22 is used to compress the sealing component 30 to seal the gap between the opening of the cover 20 and the housing 10. Thus, as per the instruction manual PN305183HZYWLN, pressure is applied to the sealing component 30 by the first mounting member 22, ensuring that the sealing component 30 fits tightly between the first fixing member 12 and the first mounting member 22 after installation, effectively sealing the gap between the opening of the cover 20 and the housing 10 and improving airtightness. Furthermore, the compression of the sealing component 30 by the first mounting member 22 allows for precise control of the compression amount, avoiding over-compression or under-compression, ensuring optimal sealing performance, and reducing wear on the sealing component 30. This layout allows for easy placement of the sealing component 30 between the first fixing member 12 and the first mounting member 22 during assembly, and also facilitates adjustment of the sealing pressure during production or maintenance, ensuring consistent sealing performance.

[0045] like Figure 2 As shown, multiple sets of mounting plates 15 are spaced apart along the extension direction within the mounting groove 14. Each set of mounting plates 15 includes two oppositely arranged mounting plates 15. The two mounting plates 15, together with the opposite sides of the first fixing member 12 and the second fixing member 13, form a limiting groove 16. The limiting member 40 is used to cooperate and connect with the multiple limiting grooves 16. With this arrangement, the limiting grooves 16 provide a precise positioning position for the limiting member 40. When the sealing member 30 is in a sealed state, the cooperation between the limiting member 40 and the limiting grooves 16 ensures that the relative position between the cover 20 and the box 10 is fixed, preventing the cover 20 from moving during the sealing process and improving the stability and assembly accuracy of the entire sealing structure. Simultaneously, it avoids changes in the compression of the sealing member 30, thereby maintaining a good sealing effect and enhancing airtightness. The overall structure simplifies the assembly process of the cover 20 and the box 10, reduces reliance on additional fixing methods, and lowers the assembly difficulty and time required.

[0046] Specifically, the connector 23 is provided with a plurality of limiting holes 25 spaced apart along its extension direction, and the plurality of limiting holes 25 are provided in a one-to-one correspondence with a plurality of limiting grooves 16. In this way, when the sealing component 30 is in a sealed state, the openings of each limiting hole 25 are aligned with the openings of their corresponding limiting grooves 16, thereby facilitating the connection of the limiting component 40 with the limiting grooves 16 and the limiting holes 25 respectively. This allows the openings of the cover 20 and the box 10 to be sealed while maintaining a relatively stable fixation, preventing the sealing component 30 from shifting due to vibration or external forces during use, thus maintaining a good sealing effect.

[0047] In this embodiment, the inner wall surface of the limiting hole 25 near the housing 10 is 2mm higher vertically than the inner wall surface of the limiting groove 16 near the housing 10. When the sealing component 30 is compressed and in a sealed state, the inner wall surface of the limiting hole 25 near the housing 10 is flush with the inner wall surface of the limiting groove 16 near the housing 10 in the horizontal direction, so that the limiting component 40 passes through the limiting groove 16 and the limiting hole 25 respectively, thereby achieving relative fixation between the cover 20 and the housing 10.

[0048] In this embodiment, the inner wall surface of the limiting hole 25 near the cover 20 is vertically higher than the outer wall surface of the first fixing member 12 near the cover 20. This ensures that when a portion of the limiting member 40 passes through the limiting groove 16, another portion of the limiting member 40 passes through the limiting hole 25 and abuts against the first fixing member 12.

[0049] Optionally, the sealing component 30 is made of silicone. The foamed silicone has a compression rate of 50%, with a thickness of 4mm before compression and 2mm after compression when in a sealed state.

[0050] like Figure 2 As shown, the limiting component 40 includes multiple limiting elements 41, each corresponding to a multiple limiting hole 25. When the sealing component 30 is in a sealed state, the limiting elements 41 are adapted to pass through the limiting hole 25 and the limiting groove 16 respectively. This ensures that when compressed to a sealed state, the limiting elements 41 can be accurately inserted into the limiting hole 25 and the limiting groove 16, thereby achieving precise alignment and stable connection between the cover 20 and the box 10. This not only limits the relative position of the cover 20 and the box 10, but also ensures that the sealing component 30 is compressed in the correct position to achieve the ideal compression amount, improving the reliability and airtightness of the seal.

[0051] like Figure 3As shown, the limiting member 41 includes a first limiting block 42 and a second limiting block 43 that are perpendicularly connected to each other. The first limiting block 42 passes through the limiting hole 25 and is installed in the limiting groove 16. The second limiting block 43 passes through the limiting hole 25 and a portion of the second limiting block 43 abuts against the first fixing member 12.

[0052] The vertical connection between the first limiting block 42 and the second limiting block 43 ensures that the limiting member 41 can stably pass through the limiting hole 25 and the limiting groove 16 respectively during assembly. The first limiting block 42, extending into the limiting groove 16, maintains the pressure applied by the first mounting member 22 to the sealing member 30, ensuring that the sealing member 30 achieves the ideal compression, optimizing the sealing effect, and thus improving airtightness and waterproof performance. At the same time, the second limiting block 43, extending into the limiting hole 25 and abutting against the first fixing member 12, ensures that the position of the limiting member 41 is fixed, improving the stability of the entire sealing structure.

[0053] In this application, the fixing component 11 and the housing 10 are integrally molded. This integral design reduces the number of connection points between the fixing component 11 and the housing 10, avoiding structural weaknesses that might be caused by additional connectors 23, resulting in a more robust overall structure capable of better withstanding external impacts and loads. It also reduces assembly steps in production and the need for additional fasteners, making the entire production process more efficient, lowering production costs, and solving the problem of large internal space requirements for sealing structures in related technologies.

[0054] In this application, the mounting component 21 and the cover 20 are integrally molded. This integral design eliminates additional seams and connection points between the mounting component 21 and the cover 20, thereby enhancing the overall structural strength and rigidity, and improving the component's resistance to external impacts and vibrations. It also helps improve the sealing performance of the entire device, reducing the risk of gas or liquid leakage. This not only improves product performance and reliability but also simplifies the production process, reduces costs, and solves the problem of large internal space requirements for sealing structures in related technologies.

[0055] As can be seen from the above description, the embodiments of this application achieve the following technical effects:

[0056] Instruction manual PN305183HZYWLN

[0057] The battery pack sealing structure includes a housing 10, a cover 20, a sealing component 30, and a limiting component 40. A fixing component 11 is provided on the outer peripheral wall of the housing 10 along its circumferential direction. A gap exists between the cover 20 and the opening of the housing 10, and the cover 20 is provided with an mounting component 21 for mating and connecting with the fixing component 11. The sealing component 30 extends along the circumferential direction of the housing 10 and is located between the cover 20 and the housing 10, and the sealing component 30 is in a sealed state due to compression by the mounting component 21. When the sealing component 30 is in a sealed state, the limiting component 40 engages with both the fixing component 11 and the mounting component 21 to limit the relative positioning of the cover 20 and the housing 10. In this way, only a gap needs to be reserved between the cover 20 and the housing 10, eliminating the need for additional space for bolts, nuts, etc., thereby reducing the internal space required for sealing. Through the cooperation of the sealing component 30 and the limiting component 40, complex bolt fixing and welding processes are eliminated, simplifying the assembly process and reducing production costs and time. Meanwhile, the sealing component 30 remains sealed after being compressed by the mounting component 21, and with the fixing effect of the limiting component 40, the reliability and airtightness of the seal are ensured. Compared with the traditional bolt fixing method, this structure makes disassembly and installation more convenient when maintenance or replacement of the cover 20 is required. Even if the sealing component 30 ages, the limiting component 40 can still maintain the relative position of the cover 20 and the housing 10, thus maintaining the sealing effect to a certain extent and extending the service life of the battery pack. It can be seen that this utility model solves the problems of large space, many parts and complex processes in the sealing structure of battery packs in related technologies.

[0058] In the description of this application, it should be understood that the orientation or positional relationship indicated by directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" is usually based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing this application and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this application; the directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.

[0059] For ease of description, the specification PN305183HZYWLN uses spatial relative terms such as "above," "over," "on the upper surface," "above," etc., to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation besides the orientation of the device as described in the figures. For example, if the device in the figures is inverted, a device described as "above" or "above" other devices or structures will subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.

[0060] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this application.

[0061] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.

Claims

1. A battery pack sealing structure, characterized in that, include: Box (10), the outer peripheral wall of the box (10) is provided with a fixing component (11) along its circumferential direction; The cover (20) is provided with a gap between it and the opening of the box (10), and the cover (20) is provided with a mounting part (21) for being adapted to be connected with the fixing part (11); A sealing component (30) extends along the circumferential direction of the housing (10) and is disposed between the cover (20) and the housing (10), the sealing component (30) having a sealed state under the pressure of the mounting component (21); The limiting component (40) is connected to the fixing component (11) and the mounting component (21) respectively when the sealing component (30) is in the sealed state, so that the cover (20) and the box (10) are relatively limited.

2. The battery pack sealing structure according to claim 1, characterized in that, The fixing component (11) includes a first fixing member (12) and a second fixing member (13) arranged sequentially at intervals along a direction away from the cover (20), and a mounting groove (14) extending in the circumferential direction of the box (10) is formed between the first fixing member (12) and the second fixing member (13).

3. The battery pack sealing structure according to claim 2, characterized in that, The mounting component (21) includes a first mounting member (22), a connector (23), and a second mounting member (24) connected in sequence. The first mounting member (22) is located on the side of the first fixing member (12) away from the second fixing member (13) and is connected to the cover (20). The second mounting member (24) is located on the side of the second fixing member (13) away from the first fixing member (12). The first mounting member (22) and the second mounting member (24) are arranged parallel to each other and located on the same side of the connector (23).

4. The battery pack sealing structure according to claim 3, characterized in that, The sealing component (30) is disposed between the first fixing member (12) and the first mounting member (22) and contacts the first fixing member (12) and the first mounting member (22) respectively. The first mounting member (22) is used to squeeze the sealing component (30) to seal the gap between the cover (20) and the opening of the box (10).

5. The battery pack sealing structure according to claim 3, characterized in that, Multiple sets of mounting plates (15) are spaced apart along the extension direction of the mounting groove (14). Each set of mounting plates (15) includes two mounting plates (15) arranged opposite to each other. The two mounting plates (15) and the opposite side of the first fixing member (12) and the second fixing member (13) form a limiting groove (16). The limiting component (40) is used to cooperate and connect with the multiple limiting grooves (16).

6. The battery pack sealing structure according to claim 5, characterized in that, The connector (23) is provided with a plurality of limiting holes (25) spaced apart along its extension direction, and the plurality of limiting holes (25) are provided in a one-to-one correspondence with the plurality of limiting grooves (16).

7. The battery pack sealing structure according to claim 6, characterized in that, The inner wall surface of the limiting hole (25) near the housing (10) is 2mm higher in the vertical direction than the inner wall surface of the limiting groove (16) near the housing (10); and / or, The inner wall surface of the limiting hole (25) near the cover (20) is vertically higher than the outer wall surface of the first fixing member (12) near the cover (20); and / or, The sealing component (30) described in claim PN305183HZYWLN is made of silicone.

8. The battery pack sealing structure according to claim 6, characterized in that, The limiting component (40) includes multiple limiting members (41), and the multiple limiting members (41) are provided one-to-one with the multiple limiting holes (25) so that when the sealing component (30) is in the sealing state, the limiting members (41) are adapted to pass through the limiting holes (25) and the limiting grooves (16) respectively.

9. The battery pack sealing structure according to claim 8, characterized in that, The limiting member (41) includes a first limiting block (42) and a second limiting block (43) that are perpendicularly connected to each other. The first limiting block (42) passes through the limiting hole (25) and is installed in the limiting groove (16). The second limiting block (43) passes through the limiting hole (25) and a portion of the second limiting block (43) abuts against the first fixing member (12).

10. The battery pack sealing structure according to claim 1, characterized in that, The fixing component (11) and the box body (10) are integrally formed; and / or, the mounting component (21) and the cover body (20) are integrally formed.

Images