CN-224217512-U - Control assembly and battery pack

Abstract

The application relates to the technical field of batteries, and discloses a control assembly and a battery pack, wherein the control assembly is provided with a first direction and comprises the following components: the first printed board and the second printed board are stacked along the thickness direction of the first printed board, the first printed board is connected with the second printed board, the first printed board is provided with a control circuit, and the second printed board is provided with a power circuit, and the control circuit is electrically connected with the power circuit. The application can solve the problem of inconvenient installation and maintenance caused by integrating the control circuit and the power circuit on the same printed board by superposing the first printed board provided with the control circuit and the second printed board provided with the power circuit.

Inventors

• CHEN YAOWEN
• YU XIAOTIAN
• ZHOU SHUANGJUN
• PENG YUQIANG
• CHEN DONGXIN

Assignees

• 浙江欣动能源科技有限公司

Dates

Publication Date

20260508

Application Date

20250317

Claims (10)

1. 1. A control assembly, comprising: First printed board (1) and second printed board (2), first printed board (1) with second printed board (2) are followed the thickness direction superpose of first printed board (1), just first printed board (1) and second printed board (2) are connected, first printed board (1) is provided with control circuit, second printed board (2) are provided with power circuit.
2. 2. The control assembly according to claim 1, characterized in that a fixing hole (2001) is formed in the second printed board (2), a fixing piece (3) is arranged on one surface of the first printed board (1) facing the second printed board (2), and the second printed board (2) is connected with the fixing piece (3) through a connecting piece (4) inserted into the fixing hole (2001).
3. 3. The control assembly according to claim 2, characterized in that the fixing member (3) is provided with a screw hole (3001) near an end of the second printed board (2) in a thickness direction of the first printed board (1), and the connecting member (4) is screwed with the screw hole (3001) through the fixing hole (2001).
4. 4. A control assembly according to claim 3, characterized in that the connecting piece (4) comprises a connecting portion (4001) and an abutting portion (4002), the connecting portion (4001) is connected with the abutting portion (4002), the connecting portion (4001) penetrates through the fixing hole (2001) and is connected with the threaded hole (3001) through threads, and the abutting portion (4002) abuts against one face of the second printed board (2) facing away from the first printed board (1).
5. 5. The control assembly according to claim 2, characterized in that the fixing member (3) is provided with a positioning column (3002) along the thickness direction of the first printed board (1) away from the end of the second printed board (2), one face of the first printed board (1) facing the second printed board (2) is provided with a positioning hole (1001), the positioning column (3002) penetrates through the positioning hole (1001), and the positioning column (3002) is connected with the positioning hole (1001).
6. 6. The control assembly of claim 1, further comprising: The pin header (5) and the bus bar (6), wherein one of the pin headers is arranged on one surface of the first printed board (1) facing the second printed board (2), the other pin header is arranged on one surface of the second printed board (2) facing the first printed board (1), and the pin header (5) is connected with the bus bar (6).
7. 7. The control assembly of claim 1, further comprising: The signal input end (7) is arranged on one surface of the first printed board (1) facing the second printed board (2), the signal input end (7) is electrically connected with the control circuit, and the signal input end (7) is suitable for collecting control signals.
8. 8. The control assembly of claim 1, further comprising: The power input interface (8) and the power output interface (9) are arranged on one surface, deviating from the first printed board (1), of the second printed board (2), and the power input interface (8) and the power output interface (9) are electrically connected with the power circuit.
9. 9. Control assembly according to claim 8, characterized in that the power input interface (8) and the power output interface (9) are provided with two.
10. 10. A battery pack, comprising: The control assembly of any one of claims 1 to 9.

Description

Control assembly and battery pack Technical Field The application relates to the technical field of batteries, in particular to a control assembly and a battery pack. Background Battery management systems (Battery MANAGEMENT SYSTEM, BMS) are an indispensable key component in electric vehicles, energy storage systems, and various types of portable electronic devices. The method is mainly responsible for monitoring key parameters such as voltage, current, temperature and the like of the battery pack so as to ensure safe and efficient operation of the battery. The battery management system effectively prolongs the service life of the battery by accurately controlling the charge and discharge processes of the battery, and improves the reliability and stability of the whole system. In the related art, a battery management system generally arranges a control circuit and a power circuit on the same protection board. This design is common in early battery management systems because the battery management system was relatively simple in function, requires a small number of devices, and has a relatively small overall footprint. However, as the functions of the battery management system are continuously extended and the number of devices is increased, the limitations of the related art are gradually revealed. When the battery management system is directly designed on a printed board, the whole length and width are large due to the integration of the control circuit and the power circuit, so that batteries with specific size requirements cannot be accommodated. In addition, the heat generated by the power part also affects the stability of the control board signal, and the difficulty of system design and maintenance is increased. Disclosure of utility model The application provides a control component, which solves the problem that the control circuit and the power circuit are integrated on the same printed board, so that the control component is inconvenient to install and maintain. In a first aspect, the present application provides a control assembly, including a first printed board and a second printed board, the first printed board and the second printed board being stacked in a thickness direction of the first printed board, and the first printed board and the second printed board being connected, the first printed board being provided with a control circuit, and the second printed board being provided with a power circuit. The circuit module has the beneficial effects that the control circuit and the power circuit are respectively arranged on the two overlapped first printed boards and the second printed boards, so that the separation of the circuit module is realized, the occupied space of the control assembly in the horizontal direction is obviously reduced, and the circuit module is convenient for adapting to battery packs with different sizes. Meanwhile, the design is also beneficial to reducing the influence of the heating of the power part on the signal stability of the control circuit and improving the reliability and stability of the whole system. In an alternative embodiment, the second printed board is provided with a fixing hole, a fixing piece is arranged on one surface of the first printed board facing the second printed board, and the second printed board is connected with the fixing piece through a connecting piece inserted in the fixing hole. The fixing device has the beneficial effects that through the cooperation of the fixing holes, the fixing pieces and the connecting pieces, firm connection between the two printed boards is realized, and the stability of electric connection between the first printed board and the second printed board is ensured. The connection mode is simple and feasible, and is convenient to install and maintain. In an alternative embodiment, the fixing member is provided with a threaded hole near the end of the second printed board along the thickness direction of the first printed board, and the connecting member penetrates through the fixing hole and is in threaded connection with the threaded hole. The threaded connection method has the beneficial effects that stronger connection force is provided, and the stability of the first printed board and the second printed board in long-term use is ensured. Simultaneously, threaded connection is convenient to detach and change, has improved the convenience of maintaining. In an optional embodiment, the connecting piece includes connecting portion and butt portion, connecting portion with the butt portion is connected, connecting portion run through the fixed orifices, and with threaded hole passes through threaded connection, butt portion with the second printed board deviates from the one side of first printed board offsets. The connecting piece has the beneficial effects that the contact area between the second printed boards is increased due to the design of the abutting part of the connecting piece, and the connection stabi