CN219303898U

CN219303898U - Acquisition assembly and battery device

Info

Publication number: CN219303898U
Application number: CN202320137784.7U
Authority: CN
Inventors: 丁扬; 魏江鹏; 胡海; 蒋豪
Original assignee: China Lithium Battery Technology Co Ltd
Current assignee: China Lithium Battery Technology Co Ltd
Priority date: 2023-02-01
Filing date: 2023-02-01
Publication date: 2023-07-04
Anticipated expiration: 2033-02-01

Abstract

The application provides a collection subassembly and battery device, wherein, collection subassembly includes: the flexible circuit board, the collection system and the first magnetic part. The flexible circuit board comprises a main body and a connecting part arranged at the edge of the main body, wherein the connecting part comprises a first surface and a second surface which are oppositely arranged. The acquisition device is arranged on the first surface. The first magnetic member is fixed on the second surface. Only one step is needed to fix the acquisition device on the shell of the battery, namely, only the first magnetic piece is needed to be placed on the shell, and the situation that the acquisition device cannot be fixed on the shell of the battery due to the fact that one step is missing due to misoperation when other fixing modes are adopted can be effectively avoided due to fewer operation steps. In addition, the fixing mode is simple in structure and convenient to operate, and the acquisition device can be fixed on the shell only by placing the first magnetic piece on the shell, so that the assembly efficiency of the product is improved.

Description

Acquisition assembly and battery device

Technical Field

The application relates to the technical field of batteries, in particular to a collection assembly and a battery device.

Background

The reliability of the structure in the battery pack and the battery device is a guarantee of safe operation of the battery system. In order to ensure safe operation of the battery system, the battery device samples information such as voltage and temperature of each single battery. The existing fixing mode of the sampling structure is complex in process, low in production efficiency and complex in assembly. And the sampling precision of the acquisition mode of the existing acquisition structure is not high.

Disclosure of Invention

The purpose of this application is to provide a simple structure, equipment convenience, adopt collection subassembly and battery device that the precision is high.

To achieve the above object, an embodiment of a first aspect of the present application provides a collecting assembly for a battery device, including: the flexible circuit board comprises a main body and a connecting part arranged at the edge of the main body, wherein the connecting part comprises a first surface and a second surface which are oppositely arranged; the collecting device is arranged on the first surface; and a first magnetic member fixed on the second face, the first magnetic member configured to be attracted to a housing of a battery.

Compared with the prior art, the technical scheme has the following advantages:

the in-process of installing the battery with collection subassembly only needs place the casing of battery with first magnetic part, makes first magnetic part adsorb on the casing under the effect of its magnetic field, just can fix collection system on the casing of battery, foretell fixed mode, simple structure, joint strength is higher, it is convenient to dismantle, just need place on the casing with first magnetic part just can fix collection system on the casing to improve the packaging efficiency of product, simultaneously, be convenient for collect the subassembly when circuit maintenance or damage and change, improved the use comfort of product. In addition, only one step is needed for fixing the collecting device on the shell, namely, only the first magnetic piece is needed to be placed on the shell of the battery, and the situation that the collecting device cannot be fixed on the shell of the battery due to the fact that one step is missing due to misoperation when other fixing modes are adopted can be effectively avoided due to the fact that operation steps are fewer, when the fixing piece is an adhesive layer covered with release paper, misoperation means that release paper is forgotten to be torn off from the adhesive layer, when the fixing piece is glue, misoperation means that glue is forgotten to be coated on the second face, and accordingly the collecting device is effectively fixed on the shell, related data of the battery are collected more accurately by the collecting device, and accuracy and precision of the collected data of the collecting device are guaranteed.

Embodiments of the second aspect of the present application provide a battery device including the above-described collection assembly.

Compared with the prior art, the technical scheme has the following advantages:

the battery device has a simple structure and is convenient to operate, so that the assembly efficiency of the product is improved. In addition, because the acquisition device is effectively arranged on the shell of the battery, the acquisition device can acquire the related data of the battery more accurately, thereby ensuring the accuracy and the precision of the acquisition data of the acquisition device and ensuring the use safety of the battery device.

Drawings

The following drawings are only for purposes of illustration and explanation of the present application and are not intended to limit the scope of the present application. Wherein:

FIG. 1 is a schematic structural view of a first embodiment of an acquisition assembly as described herein;

FIG. 2 is a schematic cross-sectional structural view of the acquisition assembly shown in FIG. 1;

FIG. 3 is a schematic structural view of a second embodiment of an acquisition assembly as described herein;

FIG. 4 is a schematic cross-sectional structural view of the acquisition assembly shown in FIG. 2;

FIG. 5 is a schematic view of a portion of the acquisition assembly shown in FIG. 1;

fig. 6 is a schematic view of a partial structure of the battery device described in the present application.

Reference numerals illustrate:

10. a flexible circuit board; 11. a main body; 12. a connection part; 13. a groove;

20. a collection device; 21. a sensor; 22. a connection frame; 221. a first edge; 23. a protective adhesive layer; 24. a protective layer;

30. a first magnetic member; 31. a protrusion; 32. a second side;

40. a second magnetic member; 41. a clamping groove;

50. a gap;

100. a collection assembly;

200. and a battery.

Detailed Description

The present application is further described in detail below by way of the accompanying drawings and examples. The features and advantages of the present application will become more apparent from the description.

The word "exemplary" is used herein to mean "serving as an example, embodiment, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. Although various aspects of the embodiments are illustrated in the accompanying drawings, the drawings are not necessarily drawn to scale unless specifically indicated.

In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other. The following discussion provides various embodiments of the present application. Although each embodiment represents a single combination of applications, different embodiments of the application may be substituted or combined, and therefore the application is also considered to include all possible combinations of the same and/or different embodiments described. Thus, if one embodiment comprises A, B, C and another embodiment comprises a combination of B and D, then the present application should also be considered to include embodiments comprising one or more of all other possible combinations comprising A, B, C, D, although such an embodiment may not be explicitly recited in the following. In addition, the technical features described below in the different embodiments of the present application may be combined with each other as long as they do not collide with each other.

As shown in fig. 1 and 2, a collection assembly 100 for a battery device provided in an embodiment of a first aspect of the present application includes: a flexible circuit board 10, a collection device 20 and a first magnetic member 30.

The flexible circuit board 10 includes a main body 11 and a connection portion 12 disposed at an edge of the main body 11, where the connection portion 12 includes a first surface and a second surface disposed opposite to each other.

The collecting device 20 is arranged on the first side.

The first magnetic member 30 is fixed on the second face, and the first magnetic member 30 is configured to be attracted to the case of the battery 200.

The application provides an acquisition assembly 100, in the in-process of installing it to battery 200, only need place first magnetic part 30 on battery 200's the casing, make first magnetic part 30 adsorb on the casing under the effect of its magnetic field, just can fix acquisition device 20 on battery 200's casing, foretell fixed mode, and simple structure, joint strength is higher, it is convenient to dismantle, just need place first magnetic part 30 on the casing just can fix acquisition device 20 on the casing, thereby the packaging efficiency of product has been improved, simultaneously, be convenient for gather the subassembly and change when circuit maintenance or damage, the comfort level of use of product has been improved.

In addition, only one step is needed to fix the collecting device 20 to the housing, that is, only the first magnetic member 30 needs to be placed on the housing of the battery 200, so that the situation that the collecting device 20 cannot be fixed to the housing of the battery 200 due to one step missing due to misoperation when other fixing modes are adopted can be effectively avoided due to fewer operation steps (when the fixing member is an adhesive layer covered with release paper, misoperation means forgetting to tear the release paper from the adhesive layer, and when the fixing member is glue, misoperation means forgetting to apply glue on the second surface), so that the collecting device 20 is effectively fixed to the housing, and the related data of the battery 200 are collected by the collecting device 20 more accurately, thereby ensuring the accuracy and precision of the data collected by the collecting device 20.

In one embodiment of the present application, the first magnetic member is a thermally conductive magnetic sheet. So that the first magnetic member can be quickly identical to the temperature of the housing of the battery, and the collecting device can quickly and accurately monitor the temperature of the housing of the battery.

In another embodiment of the present application, the projection of the heat conducting magnetic sheet on the projection surface covers the projection of the collecting device on the projection surface, and the projection surface is a plane parallel to the surface of the heat conducting magnetic sheet.

The projection that above-mentioned structure made the heat conduction magnetic sheet can cover collection system completely, guaranteed heat conduction magnetic sheet and collection system's overlapping area in the space promptly to guaranteed that collection system can gather the temperature of heat conduction magnetic sheet effectively, thereby monitor the temperature of the casing of battery more accurately.

As shown in fig. 3 and 4, in one embodiment of the present application, the collection assembly 100 further includes a second magnetic member 40.

The second magnetic member 40 is capable of attracting with the first magnetic member 30, and the second magnetic member 40 is configured to be fixed to the housing of the battery 200.

When the housing of the battery 200 is a non-magnetic member, the second magnetic member 40 is fixed on the housing, so that the collecting device 20 is fixed on the housing through the first magnetic member 30, and the use range of the collecting assembly 100 is increased due to the arrangement of the second magnetic member 40, thereby improving the market competitiveness of the product.

As shown in fig. 3 and 4, in one embodiment of the present application, one of the first magnetic member 30 and the second magnetic member 40 is provided with a clamping groove 41, and the other is provided with a protrusion 31 that mates with the clamping groove 41.

The cooperation of the protrusion 31 and the clamping groove 41 limits the movement of the first magnetic element 30 and the second magnetic element 40 along the first direction (the first direction is parallel to the second surface), so that the reliability of connection between the first magnetic element 30 and the second magnetic element 40 is ensured, the acquisition device 20 is effectively fixed on the shell, the acquisition device 20 can acquire related data of the battery 200 more accurately, and the accuracy and precision of the data acquired by the acquisition device 20 are further ensured.

As shown in fig. 3 and 4, in one embodiment of the present application, the first magnetic member 30 is provided with a protrusion 31, the second magnetic member 40 is provided with a clamping groove 41, and the protrusion 31 is formed by recessing the first magnetic member 30.

The above increases the connection strength between the protrusion 31 and the first magnetic member 30, thereby reducing the probability of fracture between the protrusion 31 and the first magnetic member 30, and further ensuring the reliability of the use of the first magnetic member 30. On the other hand, the protrusion 31 may be formed on the first magnetic member 30 by an integral molding process, thereby improving the production efficiency of the product and reducing the manufacturing cost of the product.

In one embodiment of the present application, an adhesive layer is provided on the second magnetic member, a release paper is provided on the adhesive layer, and the adhesive layer is configured to fix the second magnetic member to the case of the battery 200.

Above-mentioned connected mode of second magnetic part and casing, simple structure, convenient operation to can make the second magnetic part install on the casing fast, thereby improve the packaging efficiency of product, and then improved the production efficiency of product.

As shown in fig. 1 to 4, in one embodiment of the present application, a groove 13 is provided on the main body 11, and the connection portion 12 is located in the groove 13.

The above structure allows a smaller gap between the main body and the housing, thereby reducing the size of the space occupied by the collection assembly 100.

As shown in fig. 2 and 4, in one embodiment of the present application, the collecting device further includes: a sensor 21, a connection frame 22, a protective glue layer 23 and a protective layer 24.

The sensor 21 is provided on the connection portion 12. The sensor can monitor low voltage signals of the battery such as temperature, voltage and the like.

The connection frame 22 is fixed on the connection portion 12, the connection frame 22 is annular, the connection frame 22 is arranged along the circumferential direction of the sensor 21, and the connection frame 22 and the connection portion 12 enclose a containing groove with one end open.

The protective glue layer 23 fills the receiving groove.

The protective layer 24 is connected with the connecting frame 22, the protective layer 24 seals the opening, and a gap 50 is formed between the protective adhesive layer 23 and the protective layer 24.

The connection frame 22 has a certain strength to protect the sensor 21 to buffer external force; the protective adhesive layer 23 can wrap the sensor 21, and protect the sensor 21 to buffer external force; the protection layer 24 has certain elasticity and lower compression amount, so as to protect the sensor 21 and buffer external force; therefore, the structure can effectively protect the sensor 21, so that the damage probability of the sensor 21 when the acquisition device 20 receives impact force is reduced, and the service life of a product is prolonged.

In addition, the protective layer is arranged in the gap 50, so that the protective adhesive layer 23 is not contacted with the protective layer 24, and the impact force received by the protective adhesive layer 23 cannot be transmitted to the sensor 21 through the protective adhesive layer 23, so that the damage probability of the sensor 21 when the acquisition device 20 receives the impact force is reduced, and the service life of a product is prolonged.

As shown in fig. 5, in one embodiment of the present application, the projection of the first side 221 of the connection frame 22 on the first surface and the second side 32 of the first magnetic member 30 on the first surface have a space therebetween.

The first side is the side of the connection frame 22 disposed adjacent to the main body 11.

The second side is the side of the first magnetic member 30 disposed adjacent to the main body 11.

When the first magnetic member 30 is fixed on the connecting portion 12, a larger shearing force is generated between the first magnetic member 30 and the connecting frame 22, and the copper wires on the connecting portion 12 are easily broken by the shearing force, so that the connecting frame 22 and the first magnetic member 30 are staggered through the structure, and the shearing force between the first magnetic member 30 and the connecting frame 22 is reduced, so that the occurrence of the condition that the copper wires on the connecting portion 12 are broken in the assembling process is avoided, and the data transmission between the acquisition device 20 and the flexible circuit board 10 is ensured.

As shown in fig. 6, the battery device provided in the embodiment of the second aspect of the present application includes the acquisition assembly 100 described above. The battery device is a battery module or a battery pack.

The battery device provided by the application is simple in structure and convenient to operate, so that the assembly efficiency of a product is improved. In addition, because the acquisition device is effectively arranged on the shell of the battery 200, the acquisition device can acquire the related data of the battery 200 more accurately, thereby ensuring the accuracy and the precision of the data acquired by the acquisition device and ensuring the use safety of the battery device.

In the description of the present application, it should be noted that the terms "first," "second," and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present application, it should be noted that the terms "mounted," "connected," "coupled," and "connected" are to be construed broadly, unless explicitly stated or limited otherwise. The term "plurality" means two or more, unless expressly defined otherwise. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

The present application has been described in connection with the preferred embodiments, but these embodiments are merely exemplary and serve only as illustrations. On the basis of this, many alternatives and improvements can be made to the present application, which fall within the scope of protection of the present application.

Claims

1. A collection assembly for a battery device, the collection assembly comprising:

the flexible circuit board comprises a main body and a connecting part arranged at the edge of the main body, wherein the connecting part comprises a first surface and a second surface which are oppositely arranged;

the collecting device is arranged on the first surface; and

and a first magnetic member fixed on the second face, the first magnetic member configured to be attracted to a housing of the battery.

2. The collection assembly of claim 1, wherein the collection assembly comprises a plurality of collection tubes,

the collection assembly further includes a second magnetic member that is capable of engaging the first magnetic member, the second magnetic member configured to be secured to the housing of the battery.

3. The collection assembly of claim 2, wherein the collection assembly comprises a plurality of collection tubes,

one of the first magnetic piece and the second magnetic piece is provided with a clamping groove, and the other one is provided with a protrusion matched with the clamping groove.

4. The collection assembly of claim 2, wherein the collection assembly comprises a plurality of collection tubes,

the second magnetic piece is provided with an adhesive layer, release paper is arranged on the adhesive layer, and the adhesive layer is configured to fix the second magnetic piece on the shell of the battery.

5. The collection assembly of any one of claims 1 to 4, wherein,

the main body is provided with a groove, and the connecting part is positioned in the groove.

6. The collection assembly of any one of claims 1 to 4, wherein,

the first magnetic piece is a heat conducting magnetic sheet.

7. The collection assembly of claim 6, wherein the collection assembly comprises a plurality of collection tubes,

the projection of the heat conduction magnetic sheet on the projection surface covers the projection of the acquisition device on the projection surface, and the projection surface is a plane parallel to the surface of the heat conduction magnetic sheet.

8. The collection assembly of any one of claims 1 to 4, wherein,

the acquisition device further comprises: a sensor disposed on the connection portion;

the connecting frame is fixed on the connecting part, is annular, is arranged along the circumferential direction of the sensor, and surrounds the connecting frame and the connecting part to form a containing groove with one end open;

a protective adhesive layer filling the accommodating groove; and

the protective layer is connected with the connecting frame, the protective layer seals the opening, and a gap is reserved between the protective adhesive layer and the protective layer.

9. The collection assembly of claim 8, wherein the collection assembly comprises a plurality of collection tubes,

a space is arranged between the projection of the first edge of the connecting frame on the first surface and the second edge of the first magnetic piece on the first surface;

the first edge is an edge of the connecting frame adjacent to the main body;

the second side is the side of the first magnetic element disposed adjacent to the main body.

10. A battery device comprising a collection assembly according to any one of claims 1 to 9.