CN-224217677-U - Battery cell sampling assembly, battery module, battery device and vehicle

CN224217677UCN 224217677 UCN224217677 UCN 224217677UCN-224217677-U

Abstract

The application discloses a battery cell sampling assembly, a battery module, a battery device and a vehicle. The battery cell sampling assembly comprises an acquisition element, a flexible circuit board, a reinforcing circuit board and an electric connector, wherein the acquisition element is correspondingly connected with a plurality of battery cells, the acquisition element is used for acquiring battery data of each battery cell, the flexible circuit board is electrically connected with the acquisition element and used for receiving and transmitting the battery data acquired by the acquisition element, the reinforcing circuit board is fixed on one side, away from the battery cells, of the flexible circuit board and is electrically connected with the flexible circuit board, the reinforcing circuit board is used for receiving the battery data acquired by the acquisition element through the flexible circuit board, the structural strength of the reinforcing circuit board is greater than that of the flexible circuit board, and the electric connector is electrically connected with the reinforcing circuit board and is electrically connected with the battery management system. From this, can provide support and protection for the flexible circuit board through the reinforcement circuit board, be convenient for the flexible circuit board with battery data transmission to battery management system, reduce the risk of flexible circuit board damage.

Inventors

LI SHAOCAI
WANG PENGFEI
XU LIANGDU

Assignees

浙江凌骁能源科技有限公司
浙江零跑科技股份有限公司

Dates

Publication Date: 20260508
Application Date: 20250516

Claims (10)

1. A battery cell sampling assembly is characterized in that, the electric core sampling assembly includes: The acquisition element is correspondingly connected with the plurality of electric cores and is used for acquiring battery data of each electric core; The flexible circuit board is electrically connected with the acquisition element and is used for receiving and transmitting the battery data acquired by the acquisition element; The reinforcing circuit board is fixed on one side of the flexible circuit board, which is away from the battery core, and is electrically connected with the flexible circuit board, the reinforcing circuit board is used for receiving the battery data acquired by the acquisition element through the flexible circuit board, and the structural strength of the reinforcing circuit board is greater than that of the flexible circuit board; And the electric connector is electrically connected with the reinforced circuit board and is used for being electrically connected with a battery management system.
2. The cell sampling assembly of claim 1, wherein the stiffening circuit board is a multilayer printed circuit board.
3. The cell sampling assembly of claim 2, wherein the collection element comprises a plurality of collection interfaces, one of the collection interfaces being correspondingly connected to each of the cells, each of the collection interfaces being electrically connected to the flexible circuit board.
4. The electrical core sampling assembly according to claim 3, wherein the flexible circuit board comprises a main body portion and a plurality of electrical connection wires arranged on the main body portion, one end of each electrical connection wire is connected with the collection interface, the other end of each electrical connection wire is connected with the reinforcing circuit board, and the plurality of electrical connection wires are arranged at intervals.
5. The battery cell sampling assembly of claim 4, wherein the flexible circuit board extends in a first direction, the plurality of battery cells are sequentially arranged in the first direction to form a battery cell group, the battery cell group has a first end and a second end in the first direction, the plurality of battery cell group comprises a plurality of first connection lines and two second connection lines, each of the collection interfaces is electrically connected with one of the first connection lines, the collection interface of the battery cell connection at the first end is a first interface, the collection interface of the battery cell connection at the second end is a second interface, one of the second connection lines is electrically connected with the first interface, and the other of the second connection lines is electrically connected with the second interface.
6. The cell sampling assembly of claim 5, wherein the stiffening circuit board is located at either of the first end or the second end.
7. The electrical core sampling assembly of claim 5, wherein the plurality of collection interfaces are divided into a first column and a second column, the first column and the second column being located on both sides of the flexible circuit board in a second direction perpendicular to the first direction, the plurality of collection interfaces of the first column being sequentially arranged in the first direction, the plurality of collection interfaces of the second column being sequentially arranged in the first direction.
8. A battery module, characterized in that the battery module comprises a plurality of electric cells and the electric cell sampling assembly according to any one of claims 1-7, wherein the electric cell sampling assembly is electrically connected with the electric cells respectively.
9. The battery device is characterized by comprising a box body, a battery management system and the battery module according to claim 8, wherein a containing space is formed in the box body, the battery module and the battery management system are arranged in the containing space, and the battery management system is electrically connected with a battery cell sampling assembly of the battery module.
10. A vehicle comprising the battery device according to claim 9.

Description

Battery cell sampling assembly, battery module, battery device and vehicle Technical Field The application relates to the technical field of batteries, in particular to a battery cell sampling assembly, a battery module, a battery device and a vehicle. Background Energy conservation and emission reduction are key to sustainable development, so that the adjustment of an energy structure is promoted, and the development and application of a battery technology are promoted. The development of battery technology is critical to electrochemical energy storage technology, which has been widely used in portable electronic, electric vehicles and energy storage systems due to its advantages of high energy density, good cycling ability, high operating voltage, environmental protection, low self-discharge, etc. The battery needs to gather and monitor the operating condition of electric core through electric core sampling subassembly in the use, and current electric core sampling subassembly often gathers the battery data through the transmission of individual layer flexible circuit board, and the structural strength of individual layer flexible circuit board is relatively poor, and the risk of taking place to damage is higher. Disclosure of utility model The application mainly aims to provide a battery cell sampling assembly, a battery module, a battery device and a vehicle, and aims to solve the technical problems in the prior art. In order to solve the problems, the application provides a battery cell sampling assembly, which comprises a collecting element, a flexible circuit board, a reinforcing circuit board and an electric connector, wherein the collecting element is correspondingly connected with a plurality of battery cells, the collecting element is used for collecting battery data of each battery cell, the flexible circuit board is electrically connected with the collecting element and is used for receiving and transmitting the battery data collected by the collecting element, the reinforcing circuit board is fixed on one side of the flexible circuit board, which is far away from the battery cells, and is electrically connected with the flexible circuit board, the reinforcing circuit board is used for receiving the battery data collected by the collecting element through the flexible circuit board, the structural strength of the reinforcing circuit board is greater than that of the flexible circuit board, and the electric connector is electrically connected with the reinforcing circuit board and is electrically connected with a battery management system. In some embodiments, the stiffener circuit board is a multilayer printed circuit board. In some embodiments, the collection element includes a plurality of collection interfaces, one collection interface being correspondingly connected to each of the electrical cores, each collection interface being electrically connected to the flexible circuit board. In some embodiments, the flexible circuit board comprises a main body part and a plurality of electric connecting wires arranged on the main body part, one end of each electric connecting wire is connected with the acquisition interface, the other end of each electric connecting wire is connected with the reinforcing circuit board, and the plurality of electric connecting wires are arranged at intervals. In some embodiments, the flexible circuit board extends in a first direction, the plurality of cells are sequentially arranged in the first direction to form a cell group, the cell group has a first end and a second end in the first direction, the plurality of electrical connection lines comprise a plurality of first connection lines and two second connection lines, each acquisition interface is electrically connected with one of the first connection lines, the acquisition interface of the cell connection at the first end is a first interface, the acquisition interface of the cell connection at the second end is a second interface, one of the second connection lines is electrically connected with the first interface, and the other of the second connection lines is electrically connected with the second interface. In some embodiments, the stiffening circuit board is located at either the first end or the second end. In some embodiments, the plurality of collection interfaces is divided into a first column and a second column, the first column and the second column are located at two sides of the flexible circuit board in a second direction perpendicular to the first direction, the plurality of collection interfaces of the first column are sequentially arranged in the first direction, and the plurality of collection interfaces of the second column are sequentially arranged in the first direction. In order to solve the above problems, the present application provides a battery module, which includes a plurality of battery cells and the above battery cell sampling assembly, wherein the battery cell sampling assembly