一种动力电池模组及电池包
By adopting irregularly shaped FPCs and double-layer bent busbar design, the problem of insufficient space in the power battery module was solved, achieving a larger wiring area and improved information acquisition capabilities.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- 中汽新能(天津)电池科技有限公司
- Filing Date
- 2025-07-25
- Publication Date
- 2026-07-17
AI Technical Summary
In existing technologies, the limited space of power battery modules cannot support the use of traditional rectangular FPCs with larger widths, resulting in difficulties in circuit layout and information collection.
By using irregularly shaped FPCs or placing FPCs below the busbars and using a double-layer 180° bent busbar design, the wiring area can be increased and the need for longer modules can be met.
It enables the fulfillment of line layout and information collection needs within a limited space, improving space utilization and information collection capabilities.
Smart Images
Figure CN224520125U_ABST
Abstract
Claims
1. A power battery module, characterized in that, Includes battery cells (3), bus assemblies, and flexible printed circuit boards (FPCs); wherein the FPC adopts one of the following structures: The first type: The FPC is an irregular FPC (4), the upper surface of the FPC is flush with the upper surface of the busbar assembly, and the shape and size of the FPC are consistent with the shape and size of the busbar assembly, covering the entire area not covered by the busbar assembly; The second method involves placing the FPC below the busbar assembly, with the upper surface of the FPC lower than the lower surface of the busbar assembly, and the width of the FPC greater than the width between the busbar assemblies.
2. The power battery module according to claim 1, characterized in that, In the first type of FPC structure, the FPC includes a circuit board body and a plurality of first through holes (302) for avoiding the explosion-proof valve of the battery cell, a second through hole (301) for temperature acquisition and a connector (303) disposed on the circuit board body. The two sides of the circuit board body are provided with contoured structures that match the shape and size of the bus assembly.
3. The power battery module of claim 1, wherein, In the first and second FPC structures, the FPC includes a rectangular circuit board body and a connector, and the circuit board body is connected to the bus assembly via a nickel strip.
4. The power battery module of claim 3, wherein, In the second FPC structure, the collecting nickel sheet is a bent nickel sheet (6).
5. The power battery module of claim 1, wherein, The bus assembly includes multiple busbars, each of which is a double-layer busbar with a 180° bent structure, comprising an upper busbar (206) and a lower busbar (202).
6. The power battery module of claim 5, wherein, The reinforcing ribs of the upper layer (206) and lower layer (202) of the busbar are in contact with each other.
7. The power battery module of claim 6, wherein, The upper layer (206) and lower layer (202) of the busbar are welded together at the position of the reinforcing ribs.
8. The power battery module of claim 7, wherein, The lower layer of the busbar is provided with a double-layer busbar groove (205) for fitting the battery cell terminal into it.
9. The power battery module of claim 8, wherein, There are two double-layer busbar grooves (205).
10. A battery pack, characterized by, Includes the power battery module as described in any one of claims 1-9.