Waterproof sealing ring for automobile battery pack
By incorporating a connecting ring, slot, and insert structure at the connection between the upper and lower covers of the automotive battery pack, the problem of sealing ring deformation due to compression is solved, resulting in a better sealing effect.
Patent Information
- Application Number
- CN202520561877.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-28
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-03-28
AI Technical Summary
Existing waterproof sealing rings are prone to deformation due to compression in automotive battery packs, affecting their sealing performance.
A waterproof sealing ring is designed by setting a connecting ring, slot and plug structure at the connection between the upper and lower cover of the battery pack. The connecting ring is made of rubber to block the connection and is fixed by the cooperation of the slot and plug, so as to prevent the sealing ring from shifting or deforming during connection.
It improves the sealing effect at the battery pack connection, preventing the sealing ring from shifting or deforming due to compression during the connection process, thus enhancing the sealing perfection.
Smart Images
Figure CN223894999U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of waterproof sealing ring technology, and in particular to a waterproof sealing ring for automotive battery packs. Background Technology
[0002] The role of waterproof sealing rings in automotive battery packs is to ensure a good seal between the battery pack's outer casing and the internal battery cells, preventing the ingress of water, dust, moisture, etc., and protecting the battery and battery management system (BMS). They are typically made of elastic and weather-resistant materials (such as silicone, EPDM rubber, etc.), and their shape and installation method vary depending on the battery pack design. Battery packs usually consist of a top cover and a bottom cover, which are connected by sealing rings to prevent water and dust ingress. The waterproof sealing rings are placed around the seams of the battery pack to ensure a tight seal.
[0003] Currently, most waterproof sealing rings are directly adhered to the connecting end faces of the battery pack's upper and lower covers to seal the gaps at the connection. However, this direct adhesion method causes the waterproof sealing ring to be constantly compressed, which can easily lead to misalignment and deformation during installation, thus affecting the sealing effect. Therefore, a waterproof sealing ring for automotive battery packs has been designed to solve the aforementioned problems. Utility Model Content
[0004] To address this issue, this application provides a waterproof sealing ring for automotive battery packs.
[0005] The waterproof sealing ring for automotive battery packs provided in this application adopts the following technical solution:
[0006] A waterproof sealing ring for an automotive battery pack includes a lower cover of the battery pack, an upper cover of the battery pack fixedly connected to the upper end of the lower cover, mounting blocks fixedly connected to both sides of the lower cover, a waterproof sealing ring snapped into one side of the mounting block, a connecting ring extending from the middle of the outer side of the waterproof sealing ring, and a plurality of positioning blocks fixedly connected to the lower end of the upper cover of the battery pack, with the connecting ring inserted into the lower end of the blocks.
[0007] Preferably, the upper end of the connecting ring is provided with a plurality of slots, and the slots are used to insert plugs.
[0008] Preferably, the connecting ring is supported by a rubber material and is located at the connection between the upper cover and the lower cover of the battery pack.
[0009] Preferably, the waterproof sealing ring has fixing grooves on both sides, and the fixing grooves are compatible with the mounting block.
[0010] Preferably, the upper end of the waterproof sealing ring is inclined, and the waterproof sealing ring is attached to the inner wall of the battery pack cover.
[0011] Preferably, a connecting block is fixedly connected to the inner side of the battery pack cover, and the connecting block is fitted with a waterproof sealing ring.
[0012] In summary, this application includes the following beneficial technical effects:
[0013] In this invention, a waterproof sealing ring is attached to the inner wall of the connection between the upper and lower battery pack covers, forming a barrier at the connection point and thus completing the post-sealing of the battery pack connection. Furthermore, a connecting ring structure is installed on the end plate at the connection point of the upper and lower battery pack covers, forming a connection blockage and further improving the seal at the connection. Additionally, slots and inserts are provided to secure the waterproof sealing ring, preventing it from shifting or deforming due to pressure during the connection of the lower and upper battery pack covers. Attached Figure Description
[0014] Figure 1 This is a three-dimensional structural diagram of the main body of the embodiment of the application;
[0015] Figure 2 This is a schematic diagram of the structure after the waterproof sealing ring of the embodiment is installed.
[0016] Figure 3 This is an example of the application. Figure 2 Enlarged view of structure A.
[0017] Explanation of reference numerals in the attached diagram: 1. Lower cover of battery pack; 11. Mounting block; 2. Upper cover of battery pack; 21. Connecting block; 22. Insert block; 3. Waterproof sealing ring; 31. Connecting ring; 32. Slot; 33. Fixing slot. Detailed Implementation
[0018] The following is in conjunction with the appendix Figure 1-3 This application will be described in further detail.
[0019] This application discloses a waterproof sealing ring for automotive battery packs. (See also...) Figure 1-3 A waterproof sealing ring for an automotive battery pack includes a lower cover 1 of the battery pack, an upper cover 2 of the battery pack fixedly connected to the upper end of the lower cover 1, mounting blocks 11 fixedly connected to the two sides inside the lower cover 1, a waterproof sealing ring 3 snapped into one side of the mounting block 11, a connecting ring 31 extending from the middle of the outer side of the waterproof sealing ring 3, and several positioning blocks 22 fixedly connected to the lower end of the upper cover 2 of the battery pack, with the connecting ring 31 inserted into the lower end of the blocks 22.
[0020] The upper end of the connecting ring 31 has several slots 32. The slots 32 are inserted into the plug 22. After the plug 22 and the slot 32 are inserted, the waterproof sealing ring 3 can be fixed after the battery pack upper cover 2 and the battery pack lower cover 1 are connected. This prevents the waterproof sealing ring 3 from being squeezed and deformed when the battery pack lower cover 1 and the battery pack upper cover 2 are connected.
[0021] By adopting the above technical solution, the connecting ring 31 is supported by rubber material and is located at the connection between the upper cover 2 and the lower cover 1 of the battery pack, so that the connecting ring 31 blocks the connection between the upper cover 2 and the lower cover 1 of the battery pack.
[0022] By adopting the above technical solution, the waterproof sealing ring 3 has fixing grooves 33 on both sides, and the fixing grooves 33 are compatible with the mounting block 11, so that the waterproof sealing ring 3 can be installed on the inner wall of the battery pack lower cover 1.
[0023] By adopting the above technical solution, the upper end of the waterproof sealing ring 3 is inclined, the waterproof sealing ring 3 is attached to the inner wall of the battery pack cover 2, and the connecting block 21 is fixedly connected to the inner side of the battery pack cover 2, and the connecting block 21 and the waterproof sealing ring 3 are attached.
[0024] The implementation principle of a waterproof sealing ring for an automotive battery pack according to an embodiment of this application is as follows: The waterproof sealing ring 3 is attached to the inner side of the lower cover 1 of the battery pack, and the fixing groove 33 is attached to the mounting block 11, so that the mounting block 11 is inserted into the fixing groove 33. At the same time, the connecting ring 31 of the waterproof sealing ring 3 is placed on the upper end face of the lower cover 1 of the battery pack, so that the lower cover 1 of the battery pack supports the connecting ring 31. Then, the upper cover 2 of the battery pack is placed on the lower cover 1 of the battery pack, and the insert 22 is aligned with the fixing groove 33 of the connecting ring 31. At the same time, the connecting block 21 is attached to the waterproof sealing ring 3. Then, the lower cover 1 of the battery pack and the upper cover 2 of the battery pack are connected and fixed with screws, so that the connecting ring 31 covers the gap at the connection between the upper cover 2 of the battery pack and the lower cover 1 of the battery pack, and the waterproof sealing ring 3 is used to attach the lower cover 1 of the battery pack and the upper cover 2 of the battery pack, thereby strengthening the sealing effect and making the sealing treatment at the connection more perfect.
[0025] Finally, the following points should be noted: First, in the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection", and "linkage" should be interpreted broadly, and can be mechanical or electrical connections, or internal connections between two components, or direct connections. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may change.
[0026] Secondly: The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.
[0027] Finally: The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
[0028] The above are all preferred embodiments of this application, and are not intended to limit the scope of protection of this application. Therefore, all equivalent changes made in accordance with the structure, shape and principle of this application should be covered within the scope of protection of this application.
Claims
1. A waterproof sealing ring for an automotive battery pack, comprising a battery pack lower cover (1), characterized in that: The upper end of the lower cover (1) of the battery pack is fixedly connected to the upper cover (2) of the battery pack. The two sides of the lower cover (1) of the battery pack are fixedly connected to the mounting blocks (11). A waterproof sealing ring (3) is snapped into one side of the mounting block (11). A connecting ring (31) extends from the middle of the outer side of the waterproof sealing ring (3). Several positioning blocks (22) are fixedly connected to the lower end of the upper cover (2). The connecting ring (31) is inserted into the lower end of the blocks (22).
2. The waterproof sealing ring for an automotive battery pack according to claim 1, characterized in that: The upper end of the connecting ring (31) is provided with several slots (32), and the slots (32) are used to insert plugs (22).
3. A waterproof sealing ring for an automotive battery pack according to claim 1, characterized in that: The connecting ring (31) is supported by rubber material and is located at the connection between the upper cover (2) and the lower cover (1) of the battery pack.
4. A waterproof sealing ring for an automotive battery pack according to claim 1, characterized in that: The waterproof sealing ring (3) has fixing grooves (33) on both sides, and the fixing grooves (33) are compatible with the mounting block (11).
5. A waterproof sealing ring for an automotive battery pack according to claim 1, characterized in that: The upper end of the waterproof sealing ring (3) is inclined, and the waterproof sealing ring (3) fits against the inner wall of the battery pack cover (2).
6. A waterproof sealing ring for an automotive battery pack according to claim 1, characterized in that: The battery pack cover (2) is fixedly connected to the inner side of the connecting block (21), and the connecting block (21) and the waterproof sealing ring (3) are attached together.