CN219321490U

CN219321490U - Battery cell top cover structure, battery structure and vehicle

Info

Publication number: CN219321490U
Application number: CN202221958171.1U
Authority: CN
Inventors: 蒋雷雷; 徐超
Original assignee: Beijing CHJ Automobile Technology Co Ltd
Current assignee: Beijing CHJ Automobile Technology Co Ltd
Priority date: 2022-07-27
Filing date: 2022-07-27
Publication date: 2023-07-07
Anticipated expiration: 2032-07-27

Abstract

The utility model provides a battery cell top cover structure, a battery structure and a vehicle. The battery structure comprises a battery cell, a cooling plate and a battery cell top cover structure; the top at the electric core is connected to the lid, and the cooling plate is installed in the side of electric core to be connected with the heat conduction unit. The vehicle includes a battery structure. The heat radiating area on the cover body is increased through the heat conducting unit by the battery core top cover structure, so that more heat can be rapidly transferred to the cooling plate through the heat conducting unit, the heat radiating efficiency is improved, the battery structure is easier to keep in a reasonable temperature range, and the durability and the safety of a vehicle are improved.

Description

Battery cell top cover structure, battery structure and vehicle

Technical Field

The utility model relates to the technical field of vehicle batteries, in particular to a battery core top cover structure, a battery structure and a vehicle.

Background

The battery is an important component for the electric vehicle, and the problem of heat dissipation of the battery has been one of the problems of comparative interest to researchers.

The existing water cooling plate at the bottom or side of the battery is used for radiating heat, and the water cooling plate takes away the heat generated by the battery.

However, in actual use, when the heat generation amount of the battery increases, the heat dissipation efficiency of the battery is insufficient, and the battery cooling requirement cannot be satisfied.

In view of this, improvements are needed.

Disclosure of Invention

The utility model aims to provide a battery cell top cover structure, a battery structure and a vehicle, wherein the battery cell top cover structure and the battery structure are capable of improving heat dissipation efficiency.

The utility model provides a pair of electricity core top cap structure, including the lid and be used for with the heat conduction unit of cooling plate heat transfer, the heat conduction unit with the lid is connected fixedly.

Further, a plurality of heat conducting units are arranged on the cover body at intervals.

Further, the heat conduction unit is provided with a first end portion far from the cover body and a second end portion near to the cover body, and the width of the first end portion is smaller than that of the second end portion.

The battery structure comprises a battery cell, a cooling plate and any battery cell top cover structure; the cover body is connected to the top of the battery cell, and the cooling plate is installed on the side face of the battery cell and is connected with the heat conducting unit.

Further, the cooling plate comprises a first plate body for heat dissipation of the heat conduction unit and a second plate body for heat dissipation of the battery cell, and the first plate body is connected with the second plate body to form a T shape.

Further, a first heat-conducting glue is arranged between the first plate body and the heat-conducting unit, and the first heat-conducting glue wraps the heat-conducting unit.

Further, a second heat-conducting adhesive is arranged between the first plate body and the battery cell.

Further, a limit stop is arranged on the bottom surface of the first plate body, and the limit stop is abutted to the second heat-conducting glue and located between the second heat-conducting glue and the second plate body.

Further, a pole is arranged on the battery cell and is positioned at one side of the heat conduction unit away from the cooling plate; the battery structure further comprises a limiting barrier strip, wherein the limiting barrier strip is connected to the cover body and located between the pole and the heat conducting unit.

The technical scheme of the application provides a vehicle, including the battery structure of any one of the above-mentioned claims.

By adopting the technical scheme, the method has the following beneficial effects:

the heat radiating area on the cover body is increased through the heat conducting unit by the battery core top cover structure, so that more heat can be rapidly transferred to the cooling plate through the heat conducting unit, the heat radiating efficiency is improved, the battery structure is easier to keep in a reasonable temperature range, and the durability and the safety of a vehicle are improved.

Drawings

FIG. 1 is a schematic diagram of a top cap structure of a battery cell according to an embodiment of the utility model;

FIG. 2 is a schematic side view of a top cap structure of a battery cell according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a battery structure according to an embodiment of the present utility model;

FIG. 4 is a schematic cross-sectional view of a battery structure according to an embodiment of the present utility model;

FIG. 5 is an enlarged partial schematic view of FIG. 4;

FIG. 6 is a schematic diagram of a cooling plate according to an embodiment of the utility model;

FIG. 7 is a schematic view of a cold plate and a positive stop in an embodiment of the utility model.

Detailed Description

Specific embodiments of the present utility model will be further described below with reference to the accompanying drawings.

It is to be readily understood that, according to the technical solutions of the present utility model, those skilled in the art may replace various structural modes and implementation modes with each other without changing the true spirit of the present utility model. Accordingly, the following detailed description and drawings are merely illustrative of the utility model and are not intended to be exhaustive or to limit the utility model to the precise form disclosed.

Terms of orientation such as up, down, left, right, front, rear, front, back, top, bottom, etc. mentioned or possible to be mentioned in the present specification are defined with respect to the configurations shown in the drawings, which are relative concepts, and thus may be changed according to different positions and different use states thereof. These and other directional terms should not be construed as limiting terms.

As shown in fig. 1-2, a top cover structure 10 of an electrical core according to an embodiment of the present application includes a cover body 1 and a heat conducting unit 2 for exchanging heat with a cooling plate 30, where the heat conducting unit 2 is fixedly connected with the cover body 1.

The cell cap structure 10 is part of a battery and is mounted on top of the cell 20. The battery cell top cover structure 10 comprises a cover body 1 and a heat conduction unit 2, wherein the heat conduction unit 2 is connected to the upper surface of the cover body 1. The heat conducting unit 2 can be in direct contact with the cooling plate 30 or in indirect contact through other objects, and the heat conducting unit 2 can transfer the heat generated by the battery cell 20 to the cooling plate 30 and absorb the heat by the cooling plate 30.

Typically, the post 201 of the cell 20 is disposed on top of the cell 20, and by analysis, the heat near the post 201 is the area where the heat generated by the cell 20 is greatest. The heat conduction unit 2 that sets up on lid 1 in this application is close to the biggest region of electricity core 20 production heat, and reasonable utilization electricity core 20 top space has increased the heat dissipation scope, makes the biggest regional heat of heat can be absorbed by cooling plate 30 through heat conduction unit 2 rapidly to improved radiating efficiency, made battery can fast cool down, maintained at reasonable temperature range.

Alternatively, the heat conducting unit 2 is fixedly connected to the cover 1 by means of welding.

Alternatively, the heat conducting unit 2 is made of a metal material, and conducts heat faster.

In one embodiment, as shown in fig. 1-2, a plurality of heat conducting units 2 are arranged on the cover 1 at intervals. By the arrangement, the heat dissipation area of the cover body 1 is further increased, and the heat dissipation efficiency is improved. The larger the number of the heat conduction units 2 is, the larger the heat dissipation area is.

In one embodiment, as shown in fig. 1-2, the heat conducting unit 2 is provided with a first end 21 distant from the cover 1 and a second end 22 close to the cover 1, the first end 21 having a width smaller than the second end 22.

Specifically, the bottom end of the heat conducting unit 2 is a first end 21, the bottom end of the heat conducting unit 2 is a second end 22, and the width of the first end 21 is smaller than the width of the second end 22. The entire heat conducting unit 2 tapers in the direction from the second end 22 towards the first end 21. The area of the outer surface of the heat conduction unit 2 is increased by the arrangement, the heat conduction range of the heat conduction unit 2 is increased, and therefore the heat dissipation efficiency is extremely high.

As shown in fig. 1-5, a battery structure 100 according to an embodiment of the present application includes a battery cell 20, a cooling plate 30, and a battery cell top cover structure 10 according to any of the above. The cover 1 is connected to the top of the battery cell 20, and the cooling plate 30 is installed at the side of the battery cell 20 and connected to the heat conductive unit 2.

The battery structure 100 is mounted on a vehicle and provides a source of energy for driving the vehicle into operation. The battery structure 100 includes a cell 20, a cooling plate 30, and a cell cap structure 10. The specific structure and function of the cell top cover structure 10 are referred to above, and will not be described again. The cover body 1 of the battery cell top cover structure 10 is arranged at the top of the battery cell 20, the cooling plate 30 is arranged on one side of the battery cell 20, wherein one part of the cooling plate 30 is arranged on the side face of the battery cell 20, and the other part of the cooling plate 30 is arranged on the upper side of the battery cell 20. The portion of the cooling plate 30 located on the battery cell 20 is connected to the heat conduction unit 2. In this way, the heat conduction unit 2 rapidly transfers the heat generated from the battery cell 20 to the cooling plate 30 and is then absorbed by the cooling plate 30. The design of the heat conducting unit 2 enables the cooling plate 30 to absorb heat generated by the battery cell 20 at the side face and also absorb heat generated by the battery cell 20 at the top at the same time, so that the temperature of the battery cell 20 can be reduced more quickly, and the normal action of the battery cell 20 is ensured.

Alternatively, the cooling plate 30 is a water-cooled plate.

In one embodiment, as shown in fig. 3-5, the cooling plate 30 includes a first plate 301 for dissipating heat from the heat conducting unit 2 and a second plate 302 for dissipating heat from the battery cell 20, where the first plate 301 and the second plate 302 are connected in a T shape.

Specifically, the cooling plate 30 includes a first plate 301 and a second plate 302, where the first plate 301 is connected to the upper end of the second plate 302, and is connected to the second plate 302 in a T shape. The first plate 301 is located on the upper side of the battery cell 20, and absorbs heat transferred by the heat conducting unit 2, and the second plate 302 is located on the left side, the right side, the front side or the rear side of the battery cell 20, and absorbs heat generated by the side surface of the battery cell 20.

In particular use, the cooling plate 30 is sandwiched between two cells 20, with one portion of the first plate 301 contacting the heat transfer element 2 on one of the cells 20 and another portion of the first plate 301 contacting the heat transfer element 2 on the other cell 20. Therefore, one cooling plate 30 can cool down the two battery cells 20 at the same time, the integration level is higher, and the production cost is reduced.

In one embodiment, as shown in fig. 4-5, a first heat-conducting glue 40 is disposed between the first plate 301 and the heat-conducting unit 2, and the first heat-conducting glue 40 wraps the heat-conducting unit 2.

Specifically, the first plate 301 is connected to the heat conductive unit 2 through the first heat conductive adhesive 40. The first plate 301 is located above the cover 1 and located at one side of the heat conducting unit 2, and the first heat conducting glue 40 is filled between the first plate 301 and the cover 1, and the heat conducting unit 2 is completely wrapped by the first heat conducting glue 40. The heat emitted from the heat conductive unit 2 is absorbed by the first heat conductive adhesive 40 and then transferred to the first plate 301. The first heat conductive adhesive 40 transfers heat at a faster rate and with less heat loss, so that heat can be transferred to the first plate 301 as much as possible. The first heat-conducting glue 40 wraps the heat-conducting unit 2 entirely, so that it can absorb the heat emitted from the heat-conducting unit 2 entirely.

In one embodiment, as shown in fig. 4-5, a second heat-conducting glue 50 is disposed between the first plate 301 and the battery cell 20.

Specifically, a portion of the top of the battery cell 20 is located at the outer side of the cover 1, and a portion of the first board 301 is located above the battery cell 20, a second heat-conducting adhesive 50 is disposed between the first board 301 and a portion of the battery cell 20 exposed at the outer side of the cover 1, and heat emitted by the portion of the battery cell 20 can be transferred to the first board 301 by the second heat-conducting adhesive 50.

In one embodiment, as shown in fig. 5-7, a limit stop 60 is disposed on the bottom surface of the first board 301, and the limit stop 60 abuts against the second heat-conducting glue 50 and is located between the second heat-conducting glue 50 and the second board 302.

Specifically, the bottom surface of the first plate 301 is provided with a limit stop 60, and the limit stop 60 protrudes downward, and when the cooling plate 30 is sandwiched between two electrical cores 20, the limit stop 60 abuts against the edge of the second heat-conducting glue 50, so that the second plate 302 is spaced from the side surface of the electrical core 20 by a distance. Thus, the cooling plate 30 is prevented from contacting the battery cell 20, and the battery cell 20 is prevented from being damaged.

In one embodiment, as shown in fig. 3-5, the battery cell 20 is provided with a pole 201, and the pole 201 is located on a side of the heat conducting unit 2 away from the cooling plate 30. The battery structure 100 further includes a limiting bar 70, where the limiting bar 70 is connected to the cover 1 and located between the pole 201 and the heat conducting unit 2.

Specifically, the pole 201 is mounted above the battery cell 20 on the side of the heat conduction unit 2 away from the cooling plate 30. A limiting stop is arranged between the pole 201 and the heat conducting unit 2, and the height of the limiting stop is larger than that of the heat conducting unit 2, so that the heat conducting unit 2 is prevented from being contacted with the pole 201, and the battery core 20 is prevented from being damaged.

In this embodiment, the stop bar contacts the edge of the first heat conductive glue 40.

An embodiment of the present application provides a vehicle including the battery structure 100 of any one of the above.

The specific structure and function of the battery structure 100 are referred to in the foregoing description, and are not repeated here. The battery structure 100 also dissipates heat rapidly when it dissipates a large amount of heat, maintaining a proper overall temperature range. Therefore, the electric energy generator is less prone to damage and can continuously provide electric energy for the vehicle.

In summary, the present utility model provides a battery top cover structure 10, a battery structure 100 and a vehicle, where the battery top cover structure 10 includes a cover body 1 and a heat conducting unit 2 for exchanging heat with a cooling plate 30, and the heat conducting unit 2 is fixedly connected with the cover body 1. The battery structure 100 includes a battery cell 20, a cooling plate 30, and a battery cell top cover structure 10; the cover 1 is connected to the top of the battery cell 20, and the cooling plate 30 is installed at the side of the battery cell 20 and connected to the heat conductive unit 2. The vehicle includes a battery structure 100. The heat radiating area on the cover body 1 is increased through the heat conducting unit 2 by the battery cell top cover structure 10, so that more heat can be rapidly transferred to the cooling plate 30 through the heat conducting unit 2, the heat radiating efficiency is improved, the battery structure 100 is easier to keep in a reasonable temperature range, and the durability and the safety of a vehicle are improved.

The above technical schemes can be combined according to the need to achieve the best technical effect.

The foregoing is only illustrative of the principles and preferred embodiments of the present utility model. It should be noted that several other variants are possible to those skilled in the art on the basis of the principle of the utility model and should also be considered as the scope of protection of the present utility model.

Claims

1. The utility model provides a electricity core top cap structure which characterized in that includes the lid and is used for with the heat conduction unit of cooling plate heat transfer, the heat conduction unit with the lid is connected fixedly.

2. The cell top cover structure according to claim 1, wherein a plurality of the heat conducting units are arranged on the cover body at intervals.

3. The cell cap structure according to claim 1, wherein the heat conduction unit is provided with a first end portion distant from the cap body and a second end portion close to the cap body, and a width of the first end portion is smaller than a width of the second end portion.

4. A battery structure comprising a cell, a cooling plate, and the cell cap structure of any one of claims 1-3;

the cover body is connected to the top of the battery cell, and the cooling plate is installed on the side face of the battery cell and is connected with the heat conducting unit.

5. The battery structure according to claim 4, wherein the cooling plate comprises a first plate body for heat dissipation of the heat conduction unit and a second plate body for heat dissipation of the electric cell, and the first plate body and the second plate body are connected in a T shape.

6. The battery structure of claim 5, wherein a first heat conductive glue is disposed between the first plate body and the heat conductive unit, the first heat conductive glue wrapping the heat conductive unit.

7. The battery structure of claim 5, wherein a second thermal conductive adhesive is disposed between the first plate and the cells.

8. The battery structure of claim 7, wherein a bottom surface of the first plate body is provided with a limit stop, the limit stop being in abutment with the second heat-conductive adhesive, and being located between the second heat-conductive adhesive and the second plate body.

9. The battery structure according to claim 4, wherein a post is provided on the electric core, the post being located on a side of the heat conduction unit away from the cooling plate;

the battery structure further comprises a limiting barrier strip, wherein the limiting barrier strip is connected to the cover body and located between the pole and the heat conducting unit.

10. A vehicle comprising a battery structure according to any one of claims 4-9.