CN216488231U

CN216488231U - Increase battery module and electric motor car of electricity core heat dissipation function

Info

Publication number: CN216488231U
Application number: CN202121679666.6U
Authority: CN
Inventors: 沈桂元
Original assignee: Eve Energy Co Ltd; Hubei Eve Power Co Ltd
Current assignee: Eve Energy Co Ltd; Hubei Eve Power Co Ltd
Priority date: 2021-07-22
Filing date: 2021-07-22
Publication date: 2022-05-10
Anticipated expiration: 2031-07-22

Abstract

The utility model provides a battery module with an electric core heat dissipation function and an electric vehicle, wherein the battery module is additionally provided with a heat dissipation plate between electric cores, so that heat generated by the electric cores is conducted to the heat dissipation plate; the groove is added on the heat dissipation plate to increase the heat dissipation area so as to achieve the purpose of accelerating the heat dissipation; the battery module has the advantages that through the widening design of the size, air channels are formed among the battery core and the heat dissipation plate, and between the heat dissipation plate and the heat dissipation plate, so that heat in the battery module can be dissipated out of the battery module as soon as possible, the problems that heat cannot be dissipated out of stacked batteries of the battery core and cannot be dissipated in time are solved, the temperature of the battery core is reduced in time, and the safety of the battery module is guaranteed; and simultaneously, the battery module with the battery core heat dissipation function is applied to the electric vehicle so as to increase the safety of the electric vehicle.

Description

Increase battery module and electric motor car of electricity core heat dissipation function

Technical Field

The utility model relates to the field of a heat dissipation structure of a battery module, in particular to a battery module with an increased battery core heat dissipation function and an electric vehicle.

Background

In recent years, with the wide application of lithium batteries, the safety of lithium batteries has been a major problem which plagues the development of industries. The problem of battery box fire constantly appears in recent years, and the main reason that causes this problem lies in that battery energy density is too big and leads to the module or the inside high temperature of battery box, and when the battery core temperature exceeded extreme temperature, the battery will take place thermal runaway, and then the power failure is light, then catches fire to the serious, has caused very big harm for people's life and property safety. Because the lithium cell trade all draws close towards this standard of high energy density, electric core often all is with adjacent electric core zero subsides, and this can make the heat of two electric cores be difficult to give off to the battery module outside, further causes the heat to concentrate to cause thermal runaway.

SUMMERY OF THE UTILITY MODEL

The utility model provides a battery module with an electric core heat dissipation function and an electric vehicle, wherein the battery module is provided with a heat dissipation plate between electric cores, and a groove is formed in the heat dissipation plate to increase the heat dissipation area so as to achieve the purpose of accelerating heat dissipation; meanwhile, through the widening design of the size, ventilation channels are formed among the battery core and the heat dissipation plate, and between the heat dissipation plate and the heat dissipation plate, so that heat in the battery module is dissipated out of the battery module as soon as possible, and the problems that the heat cannot be dissipated out of the battery core stack and is not timely are solved; and simultaneously, the battery module with the battery core heat dissipation function is applied to the electric vehicle so as to increase the safety of the electric vehicle.

In order to achieve the purpose, the technical scheme adopted by the utility model is as follows:

a battery module with an electric core heat dissipation function comprises a heat dissipation plate and a plurality of electric cores, wherein the electric cores are arranged among each other; the heat dissipation plate is fixed between the electric cores and is in contact with the electric cores.

Furthermore, the heat dissipation plate is of a U-shaped frame structure and is provided with a bottom plate and side plates perpendicular to two sides of the bottom plate respectively, and the front edges of the side plates on the two sides are provided with folded edges respectively.

Furthermore, a plurality of ventilation holes are respectively arranged at the two ends of the bottom plate and the folded edge.

Furthermore, a plurality of grooves are formed in the side plate.

Further, the distance between the vent holes at the two ends of the bottom plate is greater than the width of the battery cell; and a heat dissipation air duct is formed in the space between the side plate and the battery cell.

Furthermore, the vent holes on the two ends and the folded edge of the bottom plate are respectively arranged into a plurality of rows, and each row comprises a plurality of vent holes arranged from the upper end to the lower end of the bottom plate.

Furthermore, the vent holes at the two ends of the bottom plate are respectively aligned with the vent holes on the folded edge at the same side in the vertical direction.

Further, the groove is transversely arranged and traverses from one end of the side plate to the other end.

Furthermore, the grooves are vertically arranged from the upper end to the lower end of the side plate.

An electric vehicle, uses the battery module of increase electric core heat dissipation function.

The utility model provides a battery module for increasing the heat dissipation function of a battery core, wherein the battery module is characterized in that a heat dissipation plate is additionally arranged between the battery cores, so that the heat generated by the battery cores is transferred to the heat dissipation plate; the groove is added on the heat dissipation plate to increase the heat dissipation area so as to achieve the purpose of accelerating the heat dissipation; the battery module has the advantages that through the widening design of the size, air channels are formed among the battery core and the heat dissipation plate, and between the heat dissipation plate and the heat dissipation plate, so that heat in the battery module can be dissipated out of the battery module as soon as possible, the problems that heat cannot be dissipated out of stacked batteries of the battery core and cannot be dissipated in time are solved, the temperature of the battery core is reduced in time, and the safety of the battery module is guaranteed; and simultaneously, the battery module with the battery core heat dissipation function is applied to the electric vehicle so as to increase the safety of the electric vehicle.

Drawings

Fig. 1 is a schematic structural diagram of a battery module with an increased heat dissipation function of a battery cell;

fig. 2 is a schematic view of a heat dissipation plate structure.

Description of reference numerals: 1-heat dissipation plate, 11-bottom plate, 12-side plate, 13-folded edge, 14-ventilation hole, 15-groove, 2-electric core, 3-first heat dissipation plate, 4-second heat dissipation plate and 5-third heat dissipation plate.

Detailed Description

The embodiments of the present disclosure are described in detail below with reference to the accompanying drawings.

The embodiments of the present disclosure are described below with specific examples, and other advantages and effects of the present disclosure will be readily apparent to those skilled in the art from the disclosure in the specification. It is to be understood that the described embodiments are merely illustrative of some, and not restrictive, of the embodiments of the disclosure. The disclosure may be embodied or carried out in various other specific embodiments, and various modifications and changes may be made in the details within the description without departing from the spirit of the disclosure. It is to be noted that the features in the following embodiments and examples may be combined with each other without conflict. All other embodiments, which can be derived by a person skilled in the art from the embodiments disclosed herein without making any creative effort, shall fall within the protection scope of the present disclosure.

Example one

Fig. 1 is a structural diagram of a battery module for increasing a heat dissipation function of a battery cell, where the battery module includes a heat dissipation plate 1 and a plurality of battery cells 2; a plurality of electric cores 2 are arranged according to the needs of battery module group mould and are placed, heating panel 1 is fixed between electric core 2 to play for electric core 2 heat conduction and radiating effect. As shown in fig. 2, which is a structural diagram of the heat dissipation plate 1, the heat dissipation plate 1 has an overall U-shaped frame structure, and has a bottom plate 11 and side plates 12 perpendicular to two sides of the bottom plate 11, and the front edges of the side plates 12 on two sides are respectively provided with a folded edge 13. The two ends of the bottom plate 11 and the folded edges 13 are respectively provided with a plurality of vent holes 14, and the side plate 12 is provided with a plurality of grooves 15.

In specific implementation, the width of the bottom plate 11 is larger than the width of the electric core 2, a heat dissipation air duct is formed in a space between the side plate 12 and the electric core 2, and the two ends of the air duct are provided with the vent holes 14.

In specific implementation, the shape of the ventilation hole 14 may include a circle, a triangle, a square, a strip, or other shapes, and in this embodiment, a strip is used; the distance between the vent holes 14 at the two ends of the bottom plate 11 is greater than the width of the battery cell 2, so as to ensure that no hole exists at the contact part of the bottom plate 11 and the battery cell 2, and ensure that the battery cell 2 can conduct heat and dissipate heat to the greatest extent.

In specific implementation, the vent holes 14 at the two ends of the bottom plate 11 and the folded edges 13 are respectively arranged into a plurality of rows, the number of the specific rows is set according to actual requirements, each row of vent holes 14 comprises a plurality of vent holes 14 arranged from the upper end to the lower end of the bottom plate 11, and the distance between the upper vent hole 14 and the lower vent hole 14 is determined according to specific actual requirements, so that heat in the air duct can be fully dissipated from the vent holes 14 of the bottom plate 11 and the folded edges 13.

In specific implementation, the vent holes 14 at the two ends of the bottom plate 11 are respectively aligned with the vent holes 14 on the folded edge 13 on the same side in the vertical direction, so as to facilitate the rapid discharge of heat in the air duct and ensure the excellent heat dissipation performance of the whole heat dissipation plate assembly.

In specific implementation, the height of the heat dissipation plate 1 is the same as that of the battery cell 2, so that the heat dissipation plate can be in all-dimensional contact with the battery cell 2 to improve the heat dissipation efficiency.

In the specific implementation, be equipped with a plurality of recesses 15 on the curb plate 12, recess 15 adopts stamping forming, and the width size can set up according to actual need to increase the heat radiating area on the heating panel 1 for the radiating rate. Meanwhile, the stamping forming can also play a role of reinforcing ribs, so that the strength of the heat dissipation plate 1 is increased. The grooves 15 are transversely arranged and are intersected from one end of the side plate 12 to the other end, and the direction of the grooves is consistent with the direction of air flow of the air duct, so that the heat discharge speed is accelerated. Meanwhile, the plurality of grooves 15 are vertically arranged from the upper end to the lower end of the side plate 12 to increase the heat dissipation area by using the space as much as possible.

In a specific implementation, the heat dissipation plate 1 includes a first heat dissipation plate 3, a second heat dissipation plate 4, a third heat dissipation plate 5, and an nth heat dissipation plate, and the number N is set according to an actual required number. The number of the rows of the vent holes on the two ends of the bottom plate and the folded edge of the first heat dissipation plate 3 is N, the number of the rows of the vent holes on the two ends of the bottom plate and the folded edge of the second heat dissipation plate 4 is N-1, the number of the rows of the vent holes on the two ends of the bottom plate and the folded edge of the third heat dissipation plate 5 is N-2, …, and the number of the rows of the vent holes on the two ends of the bottom plate and the folded edge of the Nth heat dissipation plate is 1; it can be seen that the width of the second heat dissipation plate 4 is smaller than the width of the first heat dissipation plate 3 by more than two vent hole widths, the width of the third heat dissipation plate 5 is smaller than the width of the second heat dissipation plate 4 by more than two vent hole widths, and so on, the width of the nth heat dissipation plate is smaller than the width of the nth-1 heat dissipation plate by more than two vent hole widths.

In specific implementation, when the heat dissipation plate 1 is assembled with the plurality of electric cores 2, the bottom plate of the first heat dissipation plate 3 is located between the first electric core 2 and the second electric core 2, the bottom plate of the second heat dissipation plate 4 is located between the second electric core 2 and the third electric core 2, the bottom plate of the third heat dissipation plate 5 is located between the third electric core 2 and the fourth electric core 2, and so on, the bottom plate of the nth heat dissipation plate is located between the nth electric core 2 and the (N + 1) th electric core 2; the hem of the Nth heat dissipation plate is positioned on the surface of the last electric core 2 far away from the first electric core 2, the hem of the Nth-1 heat dissipation plate is positioned on the hem of the Nth heat dissipation plate, the hem of the second heat dissipation plate 4 is positioned on the hem of the third heat dissipation plate 5, and the hem of the first heat dissipation plate 3 is positioned on the hem of the second heat dissipation plate 4; 3 curb plates of first heating panel are located second piece electricity core 2 appearances and are formed first layer heat dissipation wind channel, and 4 curb plates of second heating panel are located 3 curb plates of first heating panel and form the second floor heat dissipation wind channel, and 5 curb plates of third heating panel are located 4 curb plates of second heating panel and form the third layer heat dissipation wind channel to analogize the Nth heating panel curb plate and be located N-1 heating panel curb plate and form the Nth floor heat dissipation wind channel.

The utility model provides an electric motor car, its used battery module adopts the battery module of increase electric core heat dissipation function as above to increase the security of electric motor car.

In the description of the present invention, it is to be understood that the terms "intermediate", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "inner", "outer", "radial", "circumferential", and the like, indicate orientations and positional relationships that are based on the orientations and positional relationships shown in the drawings, are used for convenience in describing the present invention and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention.

In the present invention, unless otherwise expressly stated or limited, the first feature may be "on" the second feature in direct contact with the second feature, or the first and second features may be in indirect contact via an intermediate. "plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

The above description is for the purpose of illustrating embodiments of the utility model and is not intended to limit the utility model, and it will be apparent to those skilled in the art that any modification, equivalent replacement, or improvement made without departing from the spirit and principle of the utility model shall fall within the protection scope of the utility model.

Claims

1. The battery module is characterized by comprising a heat dissipation plate (1) and a plurality of battery cores (2), wherein the battery cores (2) are arranged among each other; the heat dissipation plate (1) is fixed between the electric cores (2) and is in contact with the electric cores; the heat dissipation plate (1) is of a U-shaped frame structure and is provided with a bottom plate (11) and side plates (12) which are respectively vertical to two sides of the bottom plate (11), and folded edges (13) are respectively arranged on the front edges of the side plates (12) on the two sides; and a plurality of vent holes (14) are respectively arranged at the two ends of the bottom plate (11) and the folded edge (13).

2. The battery module with the cell heat dissipation function as recited in claim 1, wherein a plurality of grooves (15) are formed in the side plate (12).

3. The battery module with the cell heat dissipation function as recited in claim 1, wherein the distance between the bottom plate (11) and the vent holes (14) at the two ends of the bottom plate is greater than the width of the cell (2); and a space between the side plate (12) and the battery cell (2) forms a heat dissipation air duct.

4. The battery module with the cell heat dissipation function as recited in claim 1, wherein the vent holes (14) at the two ends of the bottom plate (11) and the folded edge (13) are respectively arranged in a plurality of rows, and each row of vent holes (14) is arranged from the upper end to the lower end of the bottom plate (11) and from the upper end to the lower end of the folded edge (13).

5. The battery module with the cell heat dissipation function as recited in claim 1, wherein the vent holes (14) at the two ends of the bottom plate (11) are respectively aligned with the vent holes (14) on the folded edge (13) on the same side in a vertical direction.

6. The battery module with the cell heat dissipation function as recited in claim 2, wherein the groove (15) is transversely arranged and traverses from one end of the side plate (12) to the other end.

7. The battery module with the cell heat dissipation function as recited in claim 2, wherein the plurality of grooves (15) are vertically arranged from the upper end to the lower end of the side plate (12).

8. An electric vehicle, characterized in that the battery module with the cell heat dissipation function of any one of claims 1 to 7 is applied.