CN218215465U - Battery fixing assembly, battery system and vehicle - Google Patents

Abstract

The utility model provides a subassembly, battery system and vehicle are fixed to battery. The battery fixing component comprises a liquid cooling plate, a heat preservation sheet and a box body frame; the box body frame comprises a plurality of boundary beams, a plurality of cross beams and a plurality of longitudinal beams, wherein the boundary beams, the cross beams and the longitudinal beams are sequentially connected end to form an accommodating space; wherein the heat preservation pieces are arranged between the liquid cooling plate and at least one of the edge beam, the cross beam and the longitudinal beam. The utility model discloses a fixed subassembly of battery can effectively block the heat transfer route from liquid cooling board to box frame.

Description

Battery fixing assembly, battery system and vehicle

Technical Field

The utility model belongs to the technical field of the vehicle technique and specifically relates to a subassembly, battery system and vehicle are fixed to battery.

Background

Current battery system increases insulation material outside electric core to reduce the heat of the outer electric core of box frame through the air heat dissipation, however the heat of electric core can also be through liquid cold plate and box frame heat dissipation to the air, and it is fast to lead to the inside cooling of electric core, and electric core intensifies slowly. When the environmental temperature is low, the low-temperature heat preservation performance and the low-temperature heating performance of the battery system are influenced.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of the utility model is to provide a subassembly, battery system and vehicle are fixed to battery to the heat of solving prior art electricity core can be through the problem in liquid cooling board and the heat dissipation of box frame to the air.

The utility model provides a battery fixing component in a first aspect, which comprises a liquid cooling plate, a heat preservation sheet and a box body frame; the box body frame comprises a plurality of boundary beams, a plurality of cross beams and a plurality of longitudinal beams, wherein the boundary beams, the cross beams and the longitudinal beams are sequentially connected end to form an accommodating space;

wherein the heat preservation pieces are arranged between the liquid cooling plate and at least one of the edge beam, the cross beam and the longitudinal beam.

Optionally, the battery fixing assembly, wherein the edge beam, at least one of the cross beam and the longitudinal beam, the heat preservation sheet and the liquid cooling plate are fixedly connected by a flow drill screw.

Optionally, the battery fixing assembly, wherein the heat insulating sheet is an epoxy resin sheet.

Optionally, the battery fixing assembly, wherein the thickness of the heat-insulating sheet ranges from 1.5 mm to 2 mm.

Optionally, the battery fixing assembly further includes:

and the cover plate and the box body frame are arranged in a stacked mode.

A second aspect of the present invention provides a battery system, including any one of the first aspect, a battery fixing assembly.

Optionally, the battery system further includes:

the battery cell is installed in the accommodating space.

Optionally, in the battery system, a heat conducting medium is filled between the electric core and the liquid cooling plate.

A third aspect of the present invention provides a vehicle including the battery system according to any one of the second aspects.

The utility model discloses a battery fixing component, which comprises a liquid cooling plate, a heat preservation sheet and a box body frame; the box body frame comprises a plurality of boundary beams, a plurality of cross beams and a plurality of longitudinal beams, wherein the boundary beams are sequentially connected end to end, the cross beams are arranged at intervals, the longitudinal beams are arranged at intervals, and the cross beams, the longitudinal beams and the boundary beams are connected to form an accommodating space; wherein, the liquid cooling board with the boundary beam the crossbeam with be provided with between at least one in the longeron the heat preservation piece, the heat transfer route from the liquid cooling board to the box frame can be blocked to the heat preservation piece, and when the ambient temperature outside the box frame is lower, effectively improve low temperature thermal insulation performance and low temperature heating performance, when ambient temperature is higher, effectively prevent outside heat entering, avoid the potential safety hazard that high temperature arouses.

It should be understood that the statements herein are not intended to identify key or critical features of any embodiment of the present invention, nor are they intended to limit the scope of the invention. Other features of the present invention will become apparent from the following description.

Drawings

The attached drawings are used for better understanding the scheme and do not constitute a limitation to the utility model. Wherein:

fig. 1 is a schematic structural view of a battery fixing assembly according to an embodiment of the present invention;

fig. 2 is a second schematic structural diagram of a battery fixing assembly according to an embodiment of the present invention.

Description of reference numerals:

1-liquid cooling plate;

2-heat preservation sheet;

3-a box frame;

31-a side beam;

32-a cross beam;

33-longitudinal beams;

4-flow drill screws;

5-cover plate;

6-electric core.

Detailed Description

In order to make the technical problems, technical solutions and advantages to be solved by the present invention clearer, the following detailed description will be given with reference to the accompanying drawings and specific embodiments. In the following description, specific details are provided, such as specific configurations and components, merely to facilitate a thorough understanding of embodiments of the invention. Thus, it will be apparent to those skilled in the art that various changes and modifications may be made to the embodiments described herein without departing from the scope and spirit of the invention. In addition, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

The utility model provides a subassembly is fixed to battery.

As shown in fig. 1 and 2, the battery fixing assembly includes a liquid cooling plate 1, a heat insulating sheet 2, and a case frame 3; the box body frame 3 comprises a plurality of boundary beams 31, a plurality of cross beams 32 and a plurality of longitudinal beams 33, wherein the boundary beams 31, the cross beams 32 and the longitudinal beams 33 are sequentially connected end to form an accommodating space; wherein, be provided with heat preservation piece 2 between at least one in liquid cooling board 1 and boundary beam 31, crossbeam 32 and longeron 33, heat preservation piece 2 can effectively block the heat transfer route from liquid cooling board 1 to box frame 3, when box frame 3 outer ambient temperature is lower, avoid in the heat of 1 one side of liquid cooling board transmits the environment fast through this heat transfer route, when ambient temperature is higher, effectively prevent outside heat entering, avoid the potential safety hazard that high temperature arouses, guarantee the security.

In the technical solution of this embodiment, an accommodating space is formed by two cross beams 32, one side beam 31 and one longitudinal beam 33, or an accommodating space is formed by one cross beam 32, two side beams 31 and one longitudinal beam 33. The number of the edge beams 31 is at least four, and the edge beams are sequentially adjacent from head to tail. The number of the cross members 32 and the longitudinal members 33 is set as required.

It will be appreciated that the edge beams 31 are located around the tank frame 3; the cross beam 32 is positioned in the box frame 3; longitudinal beams 33 are also located within the tank frame 3, and the longitudinal beams 33 are perpendicular to the cross beams 32.

Illustratively, the heat-insulating sheet 2 is arranged in the following seven ways, which are specifically arranged according to the heat-insulating performance requirement:

(1) The heat preservation sheet 2 is arranged between the liquid cooling plate 1 and the edge beam 31.

(2) The heat preservation sheet 2 is arranged between the liquid cooling plate 1 and the cross beam 32.

(3) The heat preservation sheet 2 is arranged between the liquid cooling plate 1 and the longitudinal beam 33.

(4) Set up heat preservation piece 2 between liquid cooling plate 1 and boundary beam 31, and set up heat preservation piece 2 between liquid cooling plate 1 and crossbeam 32.

(5) Set up heat preservation piece 2 between liquid cooling plate 1 and boundary beam 31, and set up heat preservation piece 2 between liquid cooling plate 1 and longeron 33.

(6) The heat preservation sheet 2 is arranged between the liquid cooling plate 1 and the cross beam 32, and the heat preservation sheet 2 is arranged between the liquid cooling plate 1 and the longitudinal beam 33.

(7) Set up heat preservation piece 2 between liquid cooling plate 1 and boundary beam 31, and set up heat preservation piece 2 between liquid cooling plate 1 and the crossbeam 32, and set up heat preservation piece 2 between liquid cooling plate 1 and longeron 33.

Of course, the best heat-insulating effect can be achieved by providing the heat-insulating sheet 2 in the above-described case (7).

In the prior art, a liquid cooling plate and a box body frame of a battery fixing assembly are arranged in a stacked mode, a heat transfer path is from the liquid cooling plate to the box body frame, an air channel is formed between the liquid cooling plate and the box body frame, and when the ambient temperature is low, the temperature of the two end regions of the battery fixing assembly is obviously lower than that of other regions, so that the heat insulation performance and the heating performance of the battery fixing assembly are seriously influenced; when the ambient temperature is high, external heat enters through the air duct again, and the temperature of the battery cell is influenced.

In view of this, the embodiment of the present invention provides a battery fixing assembly, a heat preservation sheet 2 is disposed between the liquid cooling plate 1 and at least one of the boundary beam 31, the cross beam 32 and the longitudinal beam 33 of the box frame 3, the heat preservation sheet 2 can effectively block a heat transfer path from the liquid cooling plate 1 to the box frame 3, so that a battery cell disposed in the accommodating space of the box frame 3 is slowly cooled and quickly heated, when the environmental temperature is low, it is ensured that the discharge heat of the battery cell and the external wind heat are fully utilized, the heat dissipation of the battery cell is reduced, and the heat preservation effect is improved; when the ambient temperature is high, external heat can be effectively prevented from entering.

As an optional embodiment, the box frame 3, the heat preservation sheet 2 and the liquid cooling plate 1 are fixedly connected by Flow Drill Screws (FDS); that is, the edge beam 31, at least one of the cross beam 32 and the side beam 33, the insulating sheet 2, and the liquid-cooled panel 1 are fixedly connected by the flow drilling screw process. The flow drilling screw process is also called as a hot melt self-tapping/hot melt fastening process, the flow drilling screw 4 is sequentially tapped into the liquid cooling plate 1, the heat preservation plate 2 and the box body frame 3, unilateral connection is realized under the condition of small deformation, the flow drilling screw 4 can be detached, and the connection strength is ensured.

As an alternative embodiment, the heat-insulating sheet 2 is an epoxy resin sheet. Those skilled in the art can also use other materials to manufacture the heat-insulating sheet 2 without limitation on the premise of ensuring the heat-insulating property and hardness of the heat-insulating sheet 2.

As an alternative embodiment, the thickness of the insulating sheet 2 ranges from 1.5 mm to 2 mm.

The heat preservation sheet 2 with the thickness within the value range can not only ensure the heat preservation performance, but also ensure the hardness performance and improve the connection reliability.

As an alternative embodiment, the battery fixing assembly further includes:

the cover plate 5, the cover plate 5 and the case frame 3 are arranged in a stacked manner.

In order to ensure the sealing performance of the battery fixing assembly, a cover plate 5 is arranged above the box body frame 3.

The utility model also provides a battery system, including the fixed subassembly of above arbitrary battery.

The embodiment of the battery system of this embodiment includes all the technical solutions of the embodiment of the battery fixing assembly, so that at least all the technical effects can be achieved, and details are not described herein.

As an alternative embodiment, the battery system further includes:

electric core 6, electric core 6 installs in the accommodation space.

Install electric core 6 in the accommodation space among the above-mentioned battery fixing component, that is To say, this battery system adopts no module (Cell To Pack, CTP for short) structure, directly integrates electric core 6 in the battery system.

Because the heat preservation sheet 2 is arranged between the liquid cooling plate 1 and the box body frame 3, the heat dissipation of the battery system can be reduced when the environmental temperature is low, the heat preservation effect and the energy-saving effect are improved, and the user experience is improved; when the ambient temperature is high, external heat can be effectively prevented from entering, potential safety hazards caused by high temperature are avoided, and the safety is guaranteed.

As an optional embodiment, a heat conducting medium is filled between the battery cell 6 and the liquid cooling plate 1. The heat-conducting medium can improve the heat exchange efficiency between the electric core 6 and the liquid cooling plate 1.

The utility model also provides a vehicle, including the battery system of above arbitrary.

The vehicle embodiment of the present embodiment includes all technical solutions of the battery system embodiment, so that at least all technical effects can be achieved, and details are not described herein.

The foregoing is directed to the preferred embodiments of the present invention, and it will be understood by those skilled in the art that various changes and modifications may be made without departing from the principles of the invention, and that such changes and modifications are intended to be included within the scope of the invention.

Claims (9)

1. A battery fixing component is characterized by comprising a liquid cooling plate, a heat preservation sheet and a box body frame; the box body frame comprises a plurality of boundary beams, a plurality of cross beams and a plurality of longitudinal beams, wherein the boundary beams, the cross beams and the longitudinal beams are sequentially connected end to form an accommodating space;

wherein the heat preservation pieces are arranged between the liquid cooling plate and at least one of the edge beam, the cross beam and the longitudinal beam.

2. The battery securing assembly according to claim 1, wherein the fluid cooled plate, the thermal insulating sheet, and at least one of the side beams, the cross beam, and the side beams are fixedly attached by flow drill screws.

3. The battery securing assembly according to claim 1, wherein the insulating sheet is an epoxy sheet.

4. The battery securing assembly according to claim 1, wherein the insulating sheet has a thickness ranging from 1.5 mm to 2 mm.

5. The battery securing assembly according to claim 1, further comprising:

and the cover plate and the box body frame are arranged in a stacked mode.

6. A battery system comprising the battery holding assembly according to any one of claims 1 to 5.

7. The battery system of claim 6, further comprising:

the battery cell is installed in the accommodating space.

8. The battery system of claim 7, wherein a heat conducting medium is filled between the electric core and the liquid cooling plate.

9. A vehicle characterized by comprising the battery system according to any one of claims 6 to 8.

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