CN215266594U

CN215266594U - Battery module, battery package and vehicle

Info

Publication number: CN215266594U
Application number: CN202121678919.8U
Authority: CN
Inventors: 段有明; 高升
Original assignee: Svolt Energy Technology Co Ltd
Current assignee: Svolt Energy Technology Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2021-12-21
Anticipated expiration: 2031-07-22

Abstract

The utility model discloses a battery module, battery package and vehicle, battery module includes: battery module body, collection circuit board and temperature acquisition unit. The battery module body includes a plurality of battery monomers, and the collection circuit board is established on the battery module body, and the temperature acquisition unit includes temperature sensor and connecting harness, and temperature sensor locates the battery module body in order to gather the temperature of battery module body, and the one end of connecting harness directly links to each other with temperature sensor, and the other end of connecting harness links to each other with the collection circuit board. According to the utility model discloses battery module through connecting wire harness lug connection temperature sensor and acquisition circuit board, reduces the intermediate transfer number of times, has improved temperature signal transmission's reliability to save the FPC wire among the correlation technique, the cost is reduced.

Description

Battery module, battery package and vehicle

Technical Field

The utility model belongs to the technical field of the battery technique and specifically relates to a battery module, battery package and vehicle are related to.

Background

With the rapid increase of the number of automobiles in China, the traditional fuel oil vehicle becomes one of the main sources of environmental pollution in China, and the electric automobile becomes an important development industry of new energy automobiles due to the characteristics of energy conservation and environmental protection. The temperature acquisition of the battery module of the battery pack is to fix the temperature sensor on the battery core, then output the temperature sensor by using an FPC (flexible printed circuit) lead and transmit a signal to the battery management system by using a wire harness. The scheme is easy to cause problems through multiple times of switching and has higher cost.

SUMMERY OF THE UTILITY MODEL

The utility model discloses aim at solving one of the technical problem that exists among the prior art at least. Therefore, an object of the utility model is to provide a battery module, this battery module passes through connecting harness lug connection temperature sensor and acquisition circuit board, reduces middle switching number of times, has improved temperature signal transmission's reliability to save the FPC wire among the correlation technique, the cost is reduced.

The utility model also provides a battery package of having above-mentioned battery module.

The utility model also provides a vehicle of having above-mentioned battery package.

According to the utility model discloses battery module of first aspect embodiment, include: the battery module comprises a battery module body, a battery module body and a battery module, wherein the battery module body comprises a plurality of battery monomers; the collection circuit board is arranged on the battery module body; the temperature acquisition unit, the temperature acquisition unit includes temperature sensor and connecting wire harness, temperature sensor locates the battery module body is in order to gather the temperature of battery module body, the one end of connecting wire harness with temperature sensor directly links to each other, the other end of connecting wire harness with the collection circuit board links to each other.

According to the utility model discloses battery module through connecting wire harness lug connection temperature sensor and acquisition circuit board, reduces the intermediate transfer number of times, has improved temperature signal transmission's reliability to save the FPC wire among the correlation technique, the cost is reduced.

According to some embodiments of the utility model, the one end of connecting wire harness with temperature sensor welded connection.

According to the utility model discloses a some embodiments, the other end of connecting wire harness is equipped with the plug-in components, be equipped with the socket on the acquisition circuit board, the plug-in components peg graft in the socket.

According to the utility model discloses a some embodiments, temperature sensor passes through the viscose layer to be connected on the battery module body, the viscose layer is heat-conducting glue layer.

In some optional embodiments of the present invention, the adhesive layer is coated on the outer surface of the temperature sensor.

According to the utility model discloses a few embodiments, the collection circuit board with the temperature acquisition unit is established same one side of battery module body.

The utility model discloses an in some optional embodiments, it is a plurality of battery monomer follows the free thickness direction of battery arranges, battery module body is including connecting adjacent two the free busbar of battery, the busbar is located at least one side on the free length direction of battery, temperature sensor sets up on the busbar.

In some optional embodiments of the present invention, the temperature acquisition unit is a plurality of temperature sensors, and the temperature sensors of the temperature acquisition unit are spaced apart from each other in the arrangement direction of the battery cells.

According to the utility model discloses battery package of second aspect embodiment includes: according to the utility model discloses the battery module of above-mentioned first aspect embodiment.

According to the utility model discloses battery package through setting up foretell battery module, can improve temperature signal transmission's reliability to the cost is reduced.

According to the utility model discloses vehicle of third aspect embodiment includes: according to the utility model discloses battery package of above-mentioned second aspect embodiment.

According to the utility model discloses vehicle, through setting up above-mentioned battery package, can improve the temperature signal transmission's of battery package reliability to the cost is reduced.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a perspective view of a battery module according to some embodiments of the present invention;

FIG. 2 is an enlarged view at A in FIG. 1;

fig. 3 is a perspective view of the temperature collection unit of fig. 1.

Reference numerals:

a battery module 100;

a battery module body 1; a battery cell 11; a bus bar 12;

collecting the circuit board 2; a socket 21;

an electrical connection 3;

a temperature acquisition unit 4; a temperature sensor 41; a connection harness 42; and an insert 43.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

A battery module 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3, and the battery module 100 may be a lithium battery module.

As shown in fig. 1, a battery module 100 according to an embodiment of the present invention includes: battery module body 1, collection circuit board 2 and temperature acquisition unit 4.

The battery module body 1 includes a plurality of battery cells 11, and the plurality of battery cells 11 may be connected in series. The battery module 100 may have a substantially rectangular parallelepiped shape, a single battery cell 11 may have a substantially flat rectangular parallelepiped shape, a plurality of battery cells 11 may be arranged in a thickness direction of the battery cells 11, a length direction (refer to e1 direction in fig. 1) of the battery module 100 may be parallel to the thickness direction of the battery cells 11, a width direction (refer to e2 direction in fig. 1) of the battery module 100 may be parallel to the length direction of the battery cells 11, and a thickness direction (refer to e3 direction in fig. 1) of the battery module 100 may be parallel to the width direction of the battery cells 11.

Gather circuit board 2 and establish on battery module body 1, temperature acquisition unit 4 includes temperature sensor 41 and connecting wire bundle 42, and temperature sensor 41 locates battery module body 1 in order to gather the temperature of battery module body 1, and the one end of connecting wire bundle 42 directly links to each other with temperature sensor 41, and the other end of connecting wire bundle 42 links to each other with gathering circuit board 2. At temperature acquisition unit 4 during operation, temperature sensor 41 can gather the temperature of battery module body 1, through connecting the connecting wire harness 42 between temperature sensor 41 and collection circuit board 2 with temperature signal transmission to collection circuit board 2, can transmit to battery management system's mainboard at last, and battery management system can be according to the temperature signal control battery module 100 that temperature acquisition unit 4 gathered.

The utility model discloses a connecting harness 42 lug connection temperature sensor 41 and collection circuit board 2 reduce the intermediate transfer number of times, have improved temperature signal transmission's reliability, have reduced the risk that the temperature signal that temperature sensor 41 gathered became invalid to save the FPC wire among the correlation technique, the cost is reduced.

According to the utility model discloses battery module 100 through connecting wire harness 42 lug connection temperature sensor 41 and acquisition circuit board 2, reduces the intermediate transfer number of times, has improved temperature signal transmission's reliability to save the FPC wire among the correlation technique, the cost is reduced.

According to some embodiments of the present invention, referring to fig. 1-3, the one end of the connection harness 42 is welded to the temperature sensor 41. By welding the connection harness 42 and the temperature sensor 41, not only the reliable connection between the connection harness 42 and the temperature sensor 41 in the mechanical structure can be realized, but also the reliable electrical connection between the connection harness 42 and the temperature sensor 41 can be realized, so that the signal can be transmitted more stably, the signal interruption can be effectively prevented, and the temperature jump phenomenon can be generated.

According to some embodiments of the utility model, referring to fig. 1-3, the above-mentioned other end of connecting harness 42 is equipped with plug-in 43, is equipped with socket 21 on the acquisition circuit board 2, and plug-in 43 on the connecting harness 42 can peg graft in socket 21, pegs graft in socket 21 through plug-in 43, can conveniently realize connecting harness 42 and acquisition circuit board 2's electricity to can realize that temperature sensor 41 and acquisition circuit board 2's electricity is connected. The temperature acquisition unit 4 is connected with the acquisition circuit board 2 in an inserting mode, so that the temperature acquisition unit 4 is convenient to disassemble, assemble and replace, the universality of the connection wire harness 42 of the temperature sensor 41 is improved, and the operation is simple and reliable. Moreover, the temperature sensor 41 connected to one end of the connecting wire harness 42 is fixed to the battery module body 1, the other end of the connecting wire harness 42 is inserted into the acquisition circuit board 2 through the plug-in 43, other fixing points are not needed in the middle, the number of parts and fixing processes are reduced, the cost is reduced, and the installation efficiency of the temperature acquisition unit 4 is improved.

Alternatively, the socket 21 may be provided adjacent to the outer edge of the pickup circuit board 2, so that the length of the connection harness 42 can be shortened, reducing the cost.

According to the utility model discloses a some embodiments, temperature sensor 41 can be connected on battery module body 1 through the viscose layer, and the viscose layer is heat-conducting adhesive layer. From this the convenience is fixed temperature sensor 41 on battery module body 1 to through setting up the viscose layer into heat-conducting glue layer, can improve the temperature accuracy that temperature sensor 41 gathered. In addition, because temperature sensor 41 is less weight is lighter, use the fixed effect that can reach fixing temperature sensor 41 on battery module body 1 of viscose layer, but reduce cost, easy operation reduces the technology cost.

The utility model discloses an in some optional embodiments, the viscose layer can be at temperature sensor 41's surface by the cladding, for example the viscose layer can wrap temperature sensor 41's whole surface, can effectively separate steam, avoids steam to influence temperature sensor 41's detection precision.

In other embodiments, the temperature sensor 41 may be welded and fixed to the battery module body 1.

According to some embodiments of the present invention, referring to fig. 1 and 2, the collection circuit board 2 and the temperature collection unit 4 can be disposed on the same side of the battery module body 1. Thus, the length of the connecting wire harness 42 connecting the temperature sensor 41 and the acquisition circuit board 2 can be reduced, the cost is reduced, and the acquisition circuit board 2 and the temperature acquisition unit 4 can be conveniently maintained.

Optionally, the collecting circuit board 2 and the temperature collecting unit 4 may be disposed on the same side of the battery module body 1 in the width direction, and the arrangement may make the battery module 100 compact and reasonable in arrangement.

In some optional embodiments of the present invention, referring to fig. 1, the plurality of battery cells 11 are arranged along the thickness direction of the battery cells 11, the battery module body 1 includes the bus bar 12 connecting two adjacent battery cells 11, the bus bar 12 can be a conducting strip, for example, the bus bar 12 can be a copper sheet or an aluminum sheet, two adjacent battery cells 11 are connected through the bus bar 12, and the series connection of two adjacent battery cells 11 can be realized. The bus bar 12 may be located on at least one side in the length direction of the battery cells 11, for example, the bus bar 12 may be located on one side in the length direction of the battery cells 11, the bus bar 12 may also be located on two opposite sides in the length direction of the battery cells 11, the bus bar 12 located on one side in the length direction of the battery cells 11 may be multiple, and the multiple bus bars 12 may be arranged at intervals along the arrangement direction of the multiple battery cells 11. The temperature sensor 41 is provided on the bus bar 12. By connecting the temperature sensor 41 to the bus bar 12, the temperature sensor 41 can be conveniently mounted and fixed, and the detection accuracy of the temperature sensor 41 can be ensured.

In some optional embodiments of the present invention, referring to fig. 1, the temperature acquisition units 4 may be multiple, and the temperature sensors 41 of the multiple temperature acquisition units 4 are disposed at intervals in the arrangement direction of the multiple battery cells 11. Through a plurality of temperature acquisition units 4 that set up and make the temperature sensor 41 of a plurality of temperature acquisition units 4 interval setting in the orientation of arranging of a plurality of battery monomer 11, arrange the temperature acquisition point of a plurality of spaced apart settings in the orientation of arranging of a plurality of battery monomer 11 in other words to can gather the temperature of the different positions of battery module body 1, thereby can make the temperature data of gathering comparatively comprehensive and accurate.

In the present invention, "a plurality" means two or more.

A battery module 100 according to an embodiment of the present invention is described below with reference to fig. 1 to 3.

Referring to fig. 1 to 3, in the present embodiment, a battery module 100 includes a battery module body 1, a collecting circuit board 2, and a temperature collecting unit 4.

The battery module body 1 includes a plurality of battery cells 11 arranged along the thickness direction of the battery cells 11, the battery module 100 can be substantially in a rectangular shape, the single battery cell 11 can be substantially in a flat rectangular shape, the plurality of battery cells 11 can be arranged along the thickness direction of the battery cells 11, the length direction of the battery module 100 can be parallel to the thickness direction of the battery cells 11, the width direction of the battery module 100 can be parallel to the length direction of the battery cells 11, and the thickness direction of the battery module 100 can be parallel to the width direction of the battery cells 11. Wherein, two adjacent battery monomers 11 are connected through busbar 12, can realize two adjacent battery monomers 11's series connection, and battery module body 1's the ascending relative both sides in width direction all are equipped with a plurality of busbars 12 of arranging along battery module body 1's length direction.

Gather circuit board 2 and temperature acquisition unit 4 and all be located battery module body 1's one side in the width direction, gather circuit board 2 can be for two that the length direction interval along battery module body 1 was arranged, every collection circuit board 2 is the rectangle, and every collection circuit board 2 extends along battery module body 1's length direction, realizes the electricity through electric connector 3 between two collection circuit boards 2 and connects.

The temperature acquisition units 4 are three, and the three temperature acquisition units 4 are arranged at intervals along the length direction of the battery module body 1. Each temperature acquisition unit 4 includes a temperature sensor 41 and a connection harness 42, one end of the connection harness 42 is connected with the temperature sensor 41 by welding, and the other end of the connection harness 42 is provided with a plug 43, and the plug 43 can be pressed with the other end of the connection harness 42.

The two ends of each acquisition circuit board 2 in the length direction are respectively provided with a socket 21, wherein the two temperature acquisition units 4 are positioned on two opposite sides of one acquisition circuit board 2 in the length direction, and the plug-in units 43 on the connecting wire harnesses 42 of the two temperature acquisition units 4 are respectively plugged in the two sockets 21 on the acquisition circuit board 2; the plug-in unit 43 of the connection harness 42 of the other temperature detection unit 4 is plugged into the socket 21 of the other detection circuit board 2 on the side far from the detection circuit board 2. Wherein, the temperature sensor 41 of each temperature acquisition unit 4 is fixed on the bus bar 12 through an adhesive layer.

The fixing scheme of the temperature sensor 41 of the battery module 100 of the embodiment reduces the number of intermediate transfer times, improves the reliability of temperature signal transmission, saves an FPC lead in the related art, and reduces the cost.

According to the utility model discloses battery package of second aspect embodiment includes: according to the battery module 100 of the above first aspect of the present invention, the battery pack includes at least one battery module 100. For example, the battery pack may include one battery module 100, the battery pack may include a plurality of battery modules 100, the plurality of battery modules 100 may be connected in series, the plurality of battery modules 100 may be connected in parallel, or the plurality of battery modules 100 may be connected in series and in parallel.

According to the utility model discloses battery package, through setting up foretell battery module 100, can improve temperature signal transmission's reliability to the cost is reduced.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A battery module, comprising:

the battery module comprises a battery module body, a battery module body and a battery module, wherein the battery module body comprises a plurality of battery monomers;

the collection circuit board is arranged on the battery module body;

the temperature acquisition unit, the temperature acquisition unit includes temperature sensor and connecting wire harness, temperature sensor locates the battery module body is in order to gather the temperature of battery module body, the one end of connecting wire harness with temperature sensor directly links to each other, the other end of connecting wire harness with the collection circuit board links to each other.

2. The battery module according to claim 1, wherein one end of the connection harness is welded to the temperature sensor.

3. The battery module according to claim 1, wherein a plug-in is provided at the other end of the connection harness, and a socket is provided on the collection circuit board, and the plug-in is plugged in the socket.

4. The battery module according to claim 1, wherein the temperature sensor is connected to the battery module body through an adhesive layer, and the adhesive layer is a heat-conducting adhesive layer.

5. The battery module according to claim 4, wherein the adhesive layer covers the outer surface of the temperature sensor.

6. The battery module according to any one of claims 1-5, wherein the collection circuit board and the temperature collection unit are disposed on the same side of the battery module body.

7. The battery module according to claim 6, wherein the plurality of battery cells are arranged in a thickness direction of the battery cells, the battery module body includes a bus bar connecting two adjacent battery cells, the bus bar is located on at least one side in a length direction of the battery cells, and the temperature sensor is provided on the bus bar.

8. The battery module according to claim 6, wherein the temperature acquisition unit is provided in plurality, and the temperature sensors of the temperature acquisition units are arranged at intervals in the arrangement direction of the battery cells.

9. A battery pack, comprising: the battery module according to any one of claims 1 to 8.

10. A vehicle, characterized by comprising: the battery pack according to claim 9.