Battery pack and electric device

By designing the heat exchange flow path of each battery pack to correspond to that of the individual cells and equipping it with control elements to independently control the flow path, the problem of temperature difference between individual cells is solved, achieving temperature uniformity and performance improvement, while reducing cost and weight.

CN224400454UActive Publication Date: 2026-06-23ZHEJIANG LEAPENERGY TECH CO LTD +1
0 Cites 0 Cited by

Patent Information

Application Number
CN202521140908.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-06-05
Publication Date
2026-06-23
Estimated Expiration
2035-06-05

AI Technical Summary

Technical Problem

There are temperature differences between different individual cells in the existing battery pack, which leads to inconsistent performance and uneven aging rate, affecting the overall working performance.

Method used

Design a battery pack structure in which each battery pack includes at least two individual cells and is configured with at least two heat exchange flow paths. Each flow path is arranged opposite to the individual cells of the corresponding battery pack. A control element is provided to independently control the conduction or blocking of the heat exchange flow path and to regulate the temperature of the individual cells through the heat exchange fluid.

Benefits of technology

It effectively reduces the temperature difference between individual cells, ensures the overall performance of the battery pack, simplifies the structure of the heat exchange components, and reduces cost and weight.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

The utility model discloses a battery pack and an electric device, and relates to the technical field of batteries. The battery pack comprises at least two battery packs, and each battery pack comprises at least two single batteries. The battery pack further comprises a heat exchange assembly, the heat exchange assembly comprises at least two heat exchange flow paths, each heat exchange flow path is correspondingly provided with a control element, the heat exchange flow paths are used for allowing heat exchange fluid to pass through, the control elements are used for controlling the corresponding heat exchange flow paths to be connected or disconnected, and each heat exchange flow path is arranged opposite to the single batteries of the corresponding battery pack. Through the mode, the battery pack is beneficial to reducing the temperature difference between different single batteries in the battery pack, and the structure of the heat exchange assembly in the battery pack can be simplified, so that the cost and the weight are reduced.
Need to check novelty before this filing date? Find Prior Art