CN219144443U

CN219144443U - Battery cell data acquisition circuit connection assembly and lithium battery module

Info

Publication number: CN219144443U
Application number: CN202222551847.1U
Authority: CN
Inventors: 王奎
Original assignee: Suzhou Junqilin Precision Technology Co ltd
Current assignee: Suzhou Junqilin Precision Technology Co ltd
Priority date: 2022-09-26
Filing date: 2022-09-26
Publication date: 2023-06-06
Anticipated expiration: 2032-09-26

Abstract

The utility model discloses a battery cell data acquisition circuit connection assembly and a lithium battery module, which comprise a lower insulating fixed film, wherein a plurality of metal conductors used for connecting cells are arranged on the lower insulating fixed film, each metal conductor comprises a cell connection end and a signal output end, each cell connection end is used for connecting a cell, each metal conductor can be relatively fixedly attached to the upper surface of the lower insulating fixed film, and a plurality of metal conductors are distributed on the lower insulating fixed film in an arrangement manner to form a connection circuit for acquiring the voltage and the temperature of the cell. The battery cell data acquisition circuit connecting component is assembled by directly adopting the thin film and the metal conductor, the cost is far lower than that of a mode of adopting a wire harness, an FPC circuit board or a PCB circuit board as a data acquisition connecting circuit, the production process is simple, the data acquisition circuit formed by the metal conductor can be quickly adjusted according to the needs, the production needs of different types of battery modules are met, the production efficiency can be greatly improved, and the production cost of the battery modules is reduced.

Description

Battery cell data acquisition circuit connection assembly and lithium battery module

Technical Field

The utility model relates to the technical field of battery production, in particular to a battery cell data acquisition circuit connecting component and a battery module adopting the same.

Background

With the deterioration of the environment and the gradual shortage of energy, electric automobiles are increasingly receiving attention as a new energy automobile, and particularly in the last two years, the new energy automobile enters a rapid development period. The battery is used for providing power for the new energy automobile and is a core component of the new energy automobile. Green solar energy and wind energy are increasingly generated, but the solar energy and the wind energy belong to intermittent energy sources, an energy storage module or an energy storage power station is matched for adjusting intermittent characteristics, and a battery module is one of important energy storage modes. The battery modules for energy storage and emergency power supply in various scenes are also in wide demand. The battery module is composed of a plurality of battery cells, the battery cells are packaged by adopting a shell frame, and electrodes of the battery cells are connected in series-parallel circuit to form the battery module. One of the important indicators of the battery module is safety, so that the battery module is indispensable for monitoring data such as cell voltage, cell temperature and the like in the battery module. The existing battery module generally adopts a wire harness, an FPC circuit board or a PCB circuit board as a circuit component part of a data acquisition connecting assembly, so that data acquisition of voltage, temperature and the like of a battery cell is realized.

Along with the continuous improvement of the required quantity of the battery modules, the continuous increase of market competition, how to improve the environmental protection of the production process of battery parts, the improvement of the production efficiency of batteries and the effective reduction of the production cost of batteries become the important concern of more and more battery manufacturers. The existing wire harness, FPC circuit board or PCB circuit board is complex in process as a circuit core data acquisition connection circuit, high in production and manufacturing cost, and particularly, the FPC and PCB manufacturing procedures are more and the process involves a lot of chemical solvents. For flexible and various battery module cell connection conditions, the FPC and the PCB need special customization, so that the production cost of the battery is high. The purpose of the patent is to design a battery cell data acquisition circuit with simple manufacturing process and low production cost and a cell data acquisition connection assembly adopting the data acquisition circuit.

Disclosure of Invention

In order to overcome the defects in the prior art, the utility model aims to develop a battery cell connecting component with simple manufacturing process and low production cost.

The utility model provides a battery cell data acquisition circuit coupling assembling, its includes down insulating fixed film, be provided with a plurality of metal conductors that are used for connecting the electric core on the insulating fixed film down, metal conductor includes electric core link and signal output part, electric core link is used for connecting the electric core, but the metal conductor fixed relatively adheres to on the insulating fixed film surface down, a plurality of metal conductors are in the arrangement distributes on the insulating fixed film down and is used for gathering collection connection circuit of electric core voltage, electric core temperature.

Preferably, the signal output end of the metal conductor is connected with a connector module, and the connector module is arranged at one side of the lower insulating fixing film.

Preferably, the metal conductor is made of one or a combination of a plurality of conductive metal wires, metal conductive narrow bands or metal films.

Preferably, an upper cover insulating film is further laid on the metal conductor, and the metal conductor is arranged between the upper cover insulating film and the lower insulating fixing film.

Preferably, the upper cover insulating film and the lower insulating fixing film are one or a combination of more of insulating adhesive tapes, protective films and hot-pressing supporting films.

The patent also discloses a lithium battery module, which comprises the battery cell data acquisition circuit connection assembly described in any one of the technical schemes.

The technical scheme has the following beneficial effects: the battery cell data acquisition circuit connecting component takes the film as the lower insulating fixed film, the data acquisition circuit adopts the metal conductor to directly arrange and distribute on the film, and the metal conductor is attached on the lower insulating fixed film, and when in use, the lower insulating fixed film and the metal conductor on the lower insulating fixed film are integrally conveyed to a battery module assembly line for welding, thus being very convenient to use. The battery cell data acquisition component is assembled by directly adopting the film and the metal conductor, the cost is far lower than that of a mode of adopting a wire harness, an FPC circuit board or a PCB circuit board as a data acquisition connection short circuit, the production process is simple, the data acquisition circuit formed by the metal conductor can be quickly adjusted according to the needs, the production needs of connection of different types of battery cells are met, the production efficiency can be greatly improved, and the production cost of a battery is reduced.

Drawings

Fig. 1 is a schematic diagram of a split structure according to an embodiment of the present utility model.

Fig. 2 is a front view of an embodiment of the present utility model.

Description of element numbers: 1. a lower insulating fixing film; 2. a data acquisition connection circuit; 21. a metal conductor; 3. covering an insulating film; 4. and a connector module.

Detailed Description

Further advantages and effects of the present utility model will become apparent to those skilled in the art from the disclosure of the present utility model, which is described by the following specific examples.

Example embodiments will now be described more fully with reference to the accompanying drawings. However, the exemplary embodiments may be embodied in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the example embodiments to those skilled in the art. The described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the utility model. One skilled in the relevant art will recognize, however, that the utility model may be practiced without one or more of the specific details, or with other methods, components, devices, steps, etc. In other instances, well-known aspects have not been shown or described in detail to avoid obscuring aspects of the utility model.

As shown in fig. 1 and 2, the present patent discloses a battery cell data acquisition circuit connection assembly, which is used for connecting a battery cell with an external battery management system, so as to collect working condition data of the battery cell in real time. The battery cell data acquisition circuit connection assembly comprises a lower insulation fixing film 1, a plurality of metal conductors 21 used for connecting cells are arranged on the lower insulation fixing film 1, the plurality of metal conductors are distributed on the lower insulation fixing film in a arrayed mode to form a data acquisition connection circuit 2 used for acquiring cell voltage and cell temperature, the data acquisition connection circuit 2 comprises a plurality of cell connection ends and a plurality of signal output ends, the cell connection ends are used for connecting the cells, and the signal output ends are used for being connected with an external battery management system. As a preferred embodiment, a connector module 4 may be provided at one side of the lower insulating fixing film 1, and a signal output end of the metal conductor is connected with the connector module 4, so that the external battery management system is conveniently connected with the battery cell connection assembly in a signal manner. The data acquisition connection circuit 2 can be adaptively changed according to the actual layout of the battery cells so as to meet the use requirements of different battery modules,

As a specific embodiment, the metal conductor 21 may be made of one or a combination of several conductive metal wires, metal conductive strips or metal films. The conductive metal wire is usually a metal wire without an insulating protective layer, for example, the conductive metal wire or a metal conductive narrow band can be directly wired on the lower insulating fixing film by adopting a mechanical wiring mode, for example, the conductive metal wire is directly bent, moved, arranged and fixed on the lower insulating fixing film by a mechanical arm, and in this mode, the conductive metal wire usually needs to be a single bare metal wire. If the metal film mode is adopted, the metal film can be covered on the lower insulation fixing film, and then the circuit is directly die-cut in a die-cutting mode according to the circuit wiring mode.

In order to ensure that the data acquisition circuit 2 can be transported as a whole with a relatively unchanged position during welding assembly, the data acquisition connection circuit 2 should be relatively fixedly attached to the surface of the lower insulating fixing film 1, and the lower insulating fixing film 1 can fix the metal conductor 21 on the lower insulating fixing film by adopting bonding or other modes. As a preferred embodiment, in order to better fix the data acquisition connection circuit 2 formed by the metal conductor 21 on the lower insulating fixing film 1 and insulate and protect the circuit, a layer of upper cover insulating film 3 may be further laid on the metal conductor 21, so that the metal conductor 21 is disposed between the upper cover insulating film 3 and the lower insulating fixing film 1, and the data acquisition circuit 2 formed by the metal conductor 21 is sandwiched by adopting the upper and lower layers of films, so that the data acquisition circuit 2 can be better insulated and positioned, and further, the assembly of the battery in the subsequent process is facilitated. As a specific embodiment, the upper cover insulating film 3 and the lower insulating fixing film 1 may be one or a combination of a plurality of insulating tapes, protective films or hot-pressing support films.

The battery cell data acquisition circuit connecting component takes the film as the lower insulating fixed film, the data acquisition circuit adopts the metal conductor to directly arrange and distribute on the film, and the metal conductor is attached on the lower insulating fixed film, when in use, the lower insulating fixed film and the metal conductor on the lower insulating fixed film are integrally conveyed to a battery module assembly line for welding with the battery cell, and the use is very convenient.

The battery cell data acquisition circuit connecting component is assembled by directly adopting the thin film and the metal conductor, has a simple structure, has the cost far lower than that of adopting a wire harness, an FPC circuit board or a PCB circuit board, has a simple production process, can be quickly adjusted according to the needs, meets the production needs of lithium batteries of different types, can greatly improve the production efficiency and reduces the production cost of the batteries.

The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.

Claims

1. The battery cell data acquisition circuit connection assembly is characterized by comprising a lower insulation fixing film, wherein a plurality of metal conductors used for connecting cells are arranged on the lower insulation fixing film, each metal conductor comprises a cell connection end and a signal output end, each cell connection end is used for connecting a cell, each metal conductor can be relatively fixedly attached to the surface of the lower insulation fixing film, and a plurality of metal conductors are distributed on the lower insulation fixing film in an arrangement mode to form a data acquisition circuit used for acquiring cell voltage and cell temperature.

2. The battery cell data acquisition circuit connection assembly of claim 1, wherein the signal output end of the metal conductor is connected to a connector module disposed on one side of the lower insulating fixing film.

3. The battery cell data acquisition circuit connection assembly of claim 1, wherein the metal conductor is one or a combination of a plurality of conductive metal wires, metal conductive strips or metal films.

4. The battery cell data acquisition circuit connection assembly of claim 1, wherein an upper cover insulating film is further laid on the metal conductor, the metal conductor being disposed between the upper cover insulating film and a lower insulating fixing film.

5. The battery cell data acquisition circuit connection assembly of claim 4, wherein the upper cover insulating film, lower insulating fixing film is one or a combination of more of insulating tape, protective film or thermo-compression support film.

6. A lithium battery module comprising a battery cell data acquisition circuit connection assembly according to any one of claims 1 to 5.