Self-fixed battery pack sampling module

Abstract

The utility model discloses a self-fixing type battery pack sampling module, which comprises a sampling module and a battery pack, and the sampling module comprises a self-fixing type plastic uptake unit, a PCB (Printed Circuit Board) sampling circuit board, an aluminum bar, a nickel sheet and a sampling connector, the battery pack is connected with an aluminum bar on the sampling module through laser welding; the self-fixing type plastic uptake unit is fixed on the battery pack and is provided with a groove; the aluminum bar and the PCB sampling circuit board are placed in a groove of the self-fixing type plastic uptake unit and are respectively fixed with the self-fixing type plastic uptake unit through rivets; the nickel sheet is fixedly connected with the aluminum bar and the PCB sampling circuit board; and the interior of the sampling connector is connected with the PCB sampling circuit board. The device has the advantages of simple structure, convenience in installation, good reliability, high automation degree and the like.

Description

TECHNICAL FIELD

[0001] The utility model relates to energy storage battery technical field, concretely relates to a self -fixing battery pack sampling module. BACKGROUND

[0002] In recent years, the development of lithium battery field is especially fast, and the new three samples of China export in 2024 have been included in lithium battery products, compared with traditional primary battery and secondary battery, has the advantages such as high energy density, small size and long cycle life, but in the actual use process, in order to guarantee the safe use of product, the battery manufacturer needs to design through data acquisition upload to reach the control of the running state of each battery, in addition, the reliability and production efficiency in the product manufacturing process still need to be guaranteed in the structure aspect.

[0003] Therefore, the battery sampling module is crucial, and the battery sampling module is an important part of the battery management system (BMS), mainly responsible for collecting key physical parameters of the battery, such as voltage, temperature and current, to ensure the safety and efficient use of the battery. Real-time monitoring of these parameters is crucial for performance evaluation, fault warning and prolonging the life of the battery. However, the existing battery sampling module has problems such as poor reliability, complicated installation, inability to automate, and low work degree.

[0004] Therefore, it is necessary to provide a battery pack sampling module with convenient installation, good reliability, high degree of automatic operation and the like. INVENTION CONTENTS

[0005] The utility model discloses a self -fixing battery pack sampling module, which has the advantages of convenient installation, good reliability, high degree of automatic operation and the like. The specific technical scheme is as follows:

[0006] A self -fixing battery pack sampling module, comprising a sampling module and a battery pack, the sampling module comprising a self -fixing blister unit, a PCB sampling circuit board, an aluminum row, a nickel sheet and a sampling connector; the battery pack is connected with the aluminum row on the sampling module by laser welding; the self -fixing blister unit is fixed on the battery pack, and the self -fixing blister unit is provided with a groove; the aluminum row and the PCB sampling circuit board are placed in the groove of the self -fixing blister unit and are fixed with the self -fixing blister unit by rivets respectively; the nickel sheet is fixedly connected between the aluminum row and the PCB sampling circuit board; the sampling connector is connected with the PCB sampling circuit board inside, specifically, the sampling connector has pins inside, the PCB sampling circuit board is provided with pin mounting holes, each pin mounting hole is connected with the PCB wiring, and the pins of the sampling connector are connected with the PCB circuit by wave soldering.

[0007] Preferably, the self -fixing blister unit is an open mold plastic storage tray processed by a blister process.

[0008] Preferably, the recess and rivet are self-fixed from the self-fixed blister unit.

[0009] Preferably, the PCB sampling circuit board is internally provided with a voltage sampling chip and a temperature sampling chip, and the temperature sampling chip is a B value 3435K temperature sampling chip or a 10KΩ NTC temperature sampling chip.

[0010] Preferably, the fixing connection between the nickel sheet and the aluminum bar and the PCB sampling circuit board is laser welding or ultrasonic welding.

[0011] Compared with the closest prior art, the technical scheme provided by the utility model has the following beneficial effects:

[0012] The self-fixed blister unit is fixed on the battery pack, and the lower surface limiting design ensures that it does not displace in the horizontal direction, thereby ensuring the stability of the sampling module and improving its reliability. BRIEF DESCRIPTION OF DRAWINGS

[0013] Fig. 1 is a self-fixed battery pack sampling module upper surface structure diagram of the utility model;

[0014] Fig. 2 is a self-fixed battery pack sampling module lower surface structure diagram of the utility model;

[0015] Fig. 3 is a self-fixed battery pack sampling module and battery pack assembly diagram of the utility model;

[0016] In the drawing: 1, self-fixed blister unit, 2, PCB sampling circuit board, 3, aluminum bar, 4, nickel sheet, 5, sampling connector, 6, recess, 7, rivet, 8, battery pack. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0018] Please refer to Figs. 1-3 The utility model provides a technical scheme:

[0019] The utility model provides a kind of self-fixing battery pack sampling module, including sampling module and battery pack 8, sampling module includes self-fixing blister unit 1, PCB sampling circuit board 2, aluminum row 3, nickel sheet 4, sampling connector 5;Battery pack 8 is connected by laser welding with aluminum row 3 on sampling module;Self-fixing blister unit 1 is fixed on battery pack 8, self-fixing blister unit 1 is provided with recess 6;Aluminum row 3 and PCB sampling circuit board 2 are placed in the recess 6 of self-fixing blister unit, it is fixed by rivet 7 respectively with self-fixing blister unit 1;Nickel sheet 4 is fixedly connected between aluminum row 3 and PCB sampling circuit board 2;Sampling connector 5 is connected with PCB sampling circuit board 2 inside, specifically sampling connector 5 inside has pin, PCB sampling circuit board 2 reserves pin mounting hole, each pin mounting hole is connected with PCB wiring, then the pin of sampling connector 5 is connected with PCB circuit by wave-soldering, so that voltage and temperature signal are exported.

[0020] Further, the self-fixing blister unit 1 is an open mold plastic storage tray processed by a blister process. The recess 6 and the rivet 7 are self-formed by the self-fixing blister unit. The self-fixing blister unit 1 is provided with a limiting design to ensure that it does not displace in the horizontal direction, facilitating subsequent battery pack welding positioning.

[0021] Further, the PCB sampling circuit board 2 is built-in with a voltage sampling chip and a temperature sampling chip for collecting data of each cell in the battery pack. The temperature sampling chip is a B value 3435K temperature sampling chip or a 10KΩ NTC temperature sampling chip.

[0022] Further, the fixed connection between the nickel sheet 4 and the aluminum row 3 and the PCB sampling circuit board 2 is laser welding or ultrasonic welding.

[0023] In summary, the structure of the sampling module assembled with the battery pack is as follows: the self-fixing blister unit 1 is fixed on the battery pack 8, the lower surface limiting design ensures that it does not displace in the horizontal direction, the battery pack 8 is connected with the aluminum row 3 on the sampling module by laser welding, the PCB sampling circuit board 2 is placed in the recess 6 of the self-fixing blister unit 1 and fixed by the rivet 7, the built-in voltage and temperature sampling chips are used to collect data of each cell in the battery pack 8, the aluminum row 3 is placed in the recess 6 of the self-fixing blister unit 1 and fixed by the rivet 7, and is connected with the battery pack 8 by laser welding, the nickel sheet 4 is connected and fixed with the aluminum row 3 and the PCB sampling circuit board 2 by laser welding or ultrasonic welding, the sampling connector 5 is connected with the PCB sampling circuit board 2 inside, and voltage and temperature signals are exported, the recess 6 and the rivet 7 are self-formed by the self-fixing blister unit 1.

[0024] The use mode of the self-fixing type battery pack sampling module is that the aluminum row 3 is laser welded with the cell pole as a whole, meanwhile, one end of the aluminum row 3 is tin soldered with each circuit on the PCB sampling circuit board 2, the voltage of each cell is collected in real time, the temperature sensor is also tin soldered with the aluminum row 3, and the temperature of each cell is collected in real time.

[0025] It is to be understood that the terminology "including", "comprising", or any other variation thereof, is intended to cover a non-exclusive inclusion, such that processes, methods, articles, or apparatuses that comprise a list of elements are not required to comprise only those elements but can include other elements not expressly listed or inherent to such processes, methods, articles, or apparatuses. Without further limitation, an element preceded by "comprises a" does not, without more constraints, foreclose the existence of additional identical elements in the process, method, article, or apparatus that comprises the recited element.

[0026] Although the embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A self-fixing battery pack sampling module, comprising a sampling module and a battery pack, characterized in that: The sampling module includes a self-fixing blister unit, a PCB sampling circuit board, an aluminum bar, a nickel sheet, and a sampling connector; the battery pack is connected to the aluminum bar on the sampling module by laser welding; the self-fixing blister unit is fixed on the battery pack, and the self-fixing blister unit is provided with a groove; the aluminum bar and the PCB sampling circuit board are placed in the groove of the self-fixing blister unit, and are fixed to the self-fixing blister unit by rivets respectively; the nickel sheet is fixedly connected to the aluminum bar and the PCB sampling circuit board; the interior of the sampling connector is connected to the PCB sampling circuit board, specifically, there are pins inside the sampling connector, and the PCB sampling circuit board has reserved pin mounting holes, each pin mounting hole is connected to the PCB wiring, and then the pins of the sampling connector are connected to the PCB circuit by wave soldering.

2. The self-fixing battery pack sampling module according to claim 1, characterized in that: The self-fixing blister unit is formed by a molded plastic tray through a blister process.

3. The self-fixing battery pack sampling module according to claim 1, characterized in that: The grooves and rivets are self-molded on a self-fixing blister unit.

4. The self-fixing battery pack sampling module according to claim 1, characterized in that: The PCB sampling circuit board has a built-in voltage sampling chip and a temperature sampling chip. The model of the temperature sampling chip is a B value 3435K temperature sampling chip or a 10KΩ NTC temperature sampling chip.

5. The self-fixing battery pack sampling module according to claim 1, characterized in that: The nickel sheet is fixedly connected to the aluminum bar and the PCB sampling circuit board by laser welding or ultrasonic welding.

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