一种电池散热组件及电池
By designing a heat dissipation component with heat pipes and caps in the battery, the problem of heat generation in large cylindrical lithium-ion batteries during high-rate charging and discharging is solved, achieving uniform heat dissipation of the battery cell and improving safety performance.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- DALIAN CBAK POWER BATTERY CO LTD
- Filing Date
- 2025-07-03
- Publication Date
- 2026-07-17
AI Technical Summary
The problem of heat generation in large cylindrical lithium-ion batteries during high-rate charging and discharging is becoming increasingly prominent, leading to an increase in internal temperature, affecting the safety performance of the cell, and may even cause thermal runaway and explosion.
A battery heat dissipation assembly including heat pipes and caps was designed. The heat pipes are fixed inside the steel shell of the battery cell by laser welding, and uniform heat dissipation of the battery cell is achieved by heat conduction and convection.
It effectively improves the heat dissipation of the battery cell, enhances the safety performance of the battery cell, and prevents the risk of thermal runaway and explosion.
Smart Images
Figure CN224519944U_ABST
Abstract
Claims
1. A battery heat dissipation assembly, characterized in that: include: The heat dissipation mechanism (1) includes a heat dissipation pipe (102), a cap (103) is provided at the top of the heat dissipation pipe (102), and a cover plate (101) is fixedly installed on the outside of the heat dissipation pipe (102), with the cover plate (101) located below the cap (103).
2. The battery heat dissipation assembly of claim 1, wherein, The inner side of the cover plate (101) is provided with a pole post, and the bottom surface of the cover plate (101) is provided with a plurality of cylindrical chucks.
3. The battery heat dissipation assembly of claim 2, wherein, The heat dissipation pipe (102) is a thin-walled round pipe, and one end of the heat dissipation pipe (102) is a sealed curved surface that extends into the inside of the battery cell.
4. The battery heat dissipation assembly of claim 3, wherein, The other end of the heat sink (102) is turned outward and closely attached to the inner pole of the cap (103). The turnout of the heat sink (102) and the pole are fixedly connected by laser welding.
5. A battery, characterized by: The battery heat dissipation assembly comprising any one of claims 1-4 includes a cell steel shell (2), wherein the cell steel shell (2) has an inner hole (5) inside, the heat dissipation pipe (102) is located inside the inner hole (5), and the top surface of the cell steel shell (2) has a snap-fit hole (3).
6. A battery according to claim 5, characterized in that, The heat dissipation pipe (102) is coaxially arranged with the battery cell steel shell (2), and the length of the heat dissipation pipe (102) is less than the length of the battery cell steel shell (2).