用于户外设备的防水型环状异形聚合物锂电池组外壳
By employing a multi-layered sealing structure and an integrated molding design within the annular shaped polymer lithium battery pack casing, the problem of insufficient waterproof sealing performance is solved, achieving stable operation in outdoor environments and improving battery safety.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN UNIT PACK POWER TECH CO LTD
- Filing Date
- 2025-08-23
- Publication Date
- 2026-07-17
AI Technical Summary
Existing ring-shaped polymer lithium battery packs have insufficient waterproof sealing performance in outdoor environments. Liquid molecules may seep in through the gaps, leading to risks such as internal short circuits and electrode corrosion, which affect safety performance and service life.
A waterproof, ring-shaped polymer lithium battery pack casing was designed, employing an integrally molded sealing assembly and a multi-layer sealing structure, including a sealing ring, sealing ring, clamp, and bolt connection, to ensure a stable connection and seal between the casing and the base plate, preventing moisture infiltration.
The improved waterproof performance of the battery pack enables stable operation in complex outdoor environments, provides reliable power protection, prevents internal short circuits and corrosion, and extends service life.
Smart Images
Figure CN224520079U_ABST
Abstract
Claims
1. A waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment, characterized in that, include: The housing (1) has a cavity (10) at the center of its bottom; the cavity (10) has an installation cavity (11) for installing the battery cell on its outside. A sealing assembly (2) is disposed outside the housing (1); the sealing assembly (2) includes a fixing sleeve (20) fixed to the outer wall of the housing (1), a sliding cavity (200) is provided at the bottom of the fixing sleeve (20), a spring (21) is provided in the sliding cavity (200), a sliding ring (22) is slidably installed at the bottom of the sliding cavity (200) and pressed against by the spring (21), a connecting ring (23) is fixed at the bottom end of the sliding ring (22), a first sealing groove (230) is provided at the bottom of the connecting ring (23); a first sealing ring (24) is also coaxially fixed at the bottom of the connecting ring (23); A sealing ring (3) is located below the connecting ring (23). The sealing ring (3) includes a ring body (30), and sealing seats (31) are coaxially fixed on the upper and lower walls of the ring body (30). The upper sealing seat (31) is inserted into the first sealing groove (230). The base plate (4) used for sealing the mounting cavity (11) is detachably installed at the bottom of the housing (1); multiple protrusions (40) are fixed at the top edge of the base plate (4), and clips (41) are fixed at the top of the protrusions (40), and multiple clips (41) are engaged at the top edge of the connecting ring (23); a second sealing groove (43) is opened at the top of the base plate (4) for the sealing seat (31) below to be inserted, and a ring groove (42) is also opened at the top of the base plate (4) for the first sealing ring (24) to be inserted; two second sealing rings (44) are also fixed at the top of the base plate (4) near the center and inserted into the cavity (10).
2. The waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment according to claim 1, characterized in that: The top of the housing (1) is provided with a plurality of mounting holes (12) for mounting electrode posts, and the plurality of mounting holes (12) are connected to the mounting cavity (11).
3. The waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment according to claim 2, characterized in that: The inner wall of the mounting hole (12) is tightly bonded with a ring-shaped sealing sleeve, which is made of rubber.
4. The waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment according to claim 1, characterized in that: The slip ring (22), connecting ring (23) and first sealing ring (24) are integrally formed structures, and the slip ring (22), connecting ring (23) and first sealing ring (24) are all concentrically arranged.
5. The waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment according to claim 1, characterized in that: The ring (30) and the sealing seat (31) are integrally molded structures, and both the ring (30) and the sealing seat (31) are made of rubber.
6. The waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment according to claim 1, characterized in that: The protrusion (40) is ring-shaped, and the outer wall of the circumferential corner of the connecting ring (23) abuts against the arc-shaped inner wall of the protrusion (40).
7. The waterproof ring-shaped profiled polymeric lithium battery pack housing for outdoor equipment according to claim 1, characterized in that: The two second sealing rings (44) are concentrically arranged, and the two second sealing rings (44) respectively abut against the inner circumferential wall and the outer circumferential wall of the mounting cavity (11).
8. The waterproof annular profiled polymeric lithium battery pack housing for outdoor equipment according to claim 1, characterized in that: The bottom of the base plate (4) is provided with multiple mounting bolts (5), and the bottom of the housing (1) is provided with multiple threaded holes (13). The top of the mounting bolts (5) is threadedly connected to the corresponding threaded holes (13).