Battery device and electric appliance

By setting hollow areas and combining heat exchange structures in the battery device, the surface area of ​​the battery cells is increased, which solves the problem of poor heat exchange effect, realizes efficient heat transfer and thermal runaway protection, and improves the stability and safety of the battery device.

CN224481018UActive Publication Date: 2026-07-10CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
View PDF 0 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CONTEMPORARY AMPEREX TECHNOLOGY CO LTD
Filing Date
2026-04-21
Publication Date
2026-07-10

AI Technical Summary

Technical Problem

The heat exchange structure in existing battery devices has poor heat exchange efficiency and is unable to cope with high-rate charging and discharging conditions, resulting in a sharp rise in the temperature of individual battery cells, which affects the high power output capability and thermal runaway protection of individual battery cells.

Method used

A hollow area is set in the cavity wall of the heat exchange cavity, and heat exchange is carried out through multiple heat exchange cavities in contact with the surface of the battery cells, thereby increasing the heat exchange area. Multiple heat exchange cavities are formed by the combination of heat exchange hood and heat exchange plate, and combined with heat distribution plate and heat exchange channel, to achieve efficient heat transfer and uniformity.

Benefits of technology

It improves the heat exchange efficiency of individual battery cells, reduces heat accumulation, enhances thermal runaway protection capabilities, reduces the probability of individual battery cell deformation, and ensures the stability and safety of the battery device under high-rate charge and discharge conditions.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224481018U_ABST
    Figure CN224481018U_ABST
Patent Text Reader

Abstract

The application discloses a battery device and an electric device, and relates to the technical field of batteries, wherein the battery device comprises a box body, a heat exchange structure and a plurality of battery monomers; the heat exchange structure is arranged in the box body, the heat exchange structure has a plurality of heat exchange cavities, each cavity wall of the plurality of heat exchange cavities is formed with a heat exchange part, and the cavity wall is provided with a hollow area; the plurality of battery monomers are correspondingly arranged in the plurality of heat exchange cavities, each surface of each battery monomer is in contact with the corresponding cavity wall and can exchange heat, and the electrode terminal of each battery monomer is arranged in the corresponding hollow area of the explosion-proof valve. According to the technical scheme, the hollow area on the cavity wall of the heat exchange cavity provides a space for the electrode terminal and the explosion-proof valve and other structures, so that each surface of the battery monomer can exchange heat with the corresponding cavity wall, the heat exchange area of the battery monomer is greatly increased, the heat exchange effect of the battery monomer is improved, and the heat runaway protection capability of the battery monomer is strengthened.
Need to check novelty before this filing date? Find Prior Art