CN209804846U

CN209804846U - Liquid cooling plate and battery module comprising same

Info

Publication number: CN209804846U
Application number: CN201920511996.0U
Authority: CN
Inventors: 龚木红; 曹峰峰; 侯永坤; 江吉兵; 黄国民
Original assignee: Eve Energy Co Ltd
Current assignee: Eve Energy Co Ltd
Priority date: 2019-04-15
Filing date: 2019-04-15
Publication date: 2019-12-17
Anticipated expiration: 2029-04-15

Abstract

The utility model discloses a liquid cooling board and contain its battery module, wherein the liquid cooling board includes the board body and a plurality of stifled strip of rectangle, board body integrated into one piece, including hollow frame and a plurality of gusset, the frame has open-ended first side and open-ended second side, and first side and second side set up relatively, and the gusset is perpendicular with first side and second side, and the gusset is a plurality of runners with the frame internal partitioning after milling and shortening, and the opening of stifled strip shutoff first side and second side has seted up inlet and liquid outlet on the frame, makes this internal communicating path that forms the confession coolant liquid and flows of messenger's board. The utility model discloses a liquid cooling board integrated into one piece, production efficiency is high, can mill the runner of processing out the different grade type to adapt to the heat dissipation demand of different battery module.

Description

liquid cooling plate and battery module comprising same

Technical Field

The utility model relates to a battery technology field especially relates to a liquid cooling board and contain its battery module.

Background

The power battery is used as a power source of the pure electric vehicle, and the temperature characteristics of the power battery directly affect the performance, the service life and the durability of the electric vehicle, so that the cooling treatment is very important for the normal use of the electric vehicle when the temperature of the battery working environment is too high. The temperature control system commonly used at present is air cooling system and liquid cooling system, and air cooling system forces cold wind to flow through the battery surface and carries out the heat transfer cooling, and this kind of cooling method is great to the temperature uniformity influence of battery, can satisfy the requirement under general operating mode, but under complicated operating mode, the liquid cooling just can reach power battery's heat dissipation requirement.

at present, a conventional liquid cooling plate belongs to an unchangeable design, such as a stamping type liquid cooling plate, a flow channel is related to a mold, the flow channel is difficult to change once the liquid cooling plate is manufactured, and for a fin type liquid cooling plate, the flow channel design refers to that the arrangement and the drainage of fins and the like all belong to the work before the design and cannot be changed in the later period. Because the flow channel cannot be changed, the stamping type liquid cooling plate and the fin type liquid cooling plate cannot meet the heat dissipation requirements of different battery modules.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a liquid cooling board, its integrated into one piece, the runner of workable play different grade type to adapt to the heat dissipation demand of different battery module.

Another object of the present invention is to provide a battery module with excellent heat dissipation performance.

To achieve the purpose, the utility model adopts the following technical proposal:

On the one hand, the liquid cooling plate comprises a rectangular plate body and a plurality of blocking strips, wherein the plate body is integrally formed and comprises a hollow outer frame and a plurality of rib plates, the outer frame is provided with a first side with an opening and a second side with the opening, the first side and the second side are arranged oppositely, the rib plates are perpendicular to the first side and the second side, the rib plates are milled and shortened, then the inner part of the outer frame is divided into a plurality of flow channels, the blocking strips block the openings of the first side and the second side, and a liquid inlet and a liquid outlet are formed in the outer frame, so that a communication path for flowing of cooling liquid is formed in the plate body.

as a preferred scheme of the present invention, the rib plates are milled to form a plurality of first rib plates and a plurality of second rib plates, two ends of each second rib plate are spaced from the first side and the second side, each first rib plate includes a first end and a second end, the first end is flush with the first side, and the second end is spaced from the second side; or the first end is flush with the second side, and the second end and the first side are arranged at intervals.

As an optimized scheme of the utility model, adjacent two first gusset first end is located different sides.

As a preferred embodiment of the present invention, the length and the end position of the second rib plate are not completely the same.

As a preferred scheme of the utility model, the quantity of first gusset is M, the quantity of stifled strip is N, and N is M + 2.

As an optimized scheme of the utility model, the inlet reaches the liquid outlet all is close to the edge of frame.

As an optimal scheme of the utility model, adjacent two the interval of gusset equals.

As a preferred embodiment of the present invention, the outer frame and the first side and the second side perpendicular both sides are provided with and the outer frame vertically side plate, the side plate and the plate body integrated into one piece.

As an optimized scheme of the utility model, the stifled strip with the welding of the board body.

On the other hand, a battery module is provided, the battery module includes the liquid cooling plate of any one of the above technical solutions.

The utility model has the advantages that:

1. The machined rib plates can be milled, so that the liquid cooling plate can obtain various different flow channel types, and the heat dissipation requirements of different battery modules are met;

2. And the die is integrally formed and has high production efficiency.

Drawings

Fig. 1 is a schematic perspective view of an embodiment of the present invention;

fig. 2 is a front view of an embodiment of the present invention;

FIG. 3 is a top view of the embodiment of FIG. 2;

Fig. 4 is a schematic view of a flow passage of a liquid cooling plate according to another embodiment of the present invention.

In FIGS. 1-4:

1. A plate body; 11. a first rib plate; 12. a second rib plate; 13. a liquid inlet; 14. a liquid outlet; 15. a first side; 16. a second side; 2. a side plate; 3. blocking strips; 100. and a flow passage.

Detailed Description

the technical solution of the present invention is further explained by the following embodiments with reference to the accompanying drawings.

In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the word "over" a first feature or feature in a second feature may include the word "over" or "over" the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature "under" a second feature may include a first feature that is directly under and obliquely under the second feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

As shown in fig. 1 to 4, the liquid cooling plate of the present embodiment includes a plate body 1 and a plurality of blocking bars 3, the plate body 1 is integrally formed, and includes a hollow outer frame and a plurality of rib plates, the outer frame has an open first side 15 and an open second side 16, the first side 15 and the second side 16 are disposed opposite to each other, the rib plates are perpendicular to the first side 15 and the second side 16, the rib plates are milled and shortened to divide the interior of the outer frame into a plurality of flow channels 100, the blocking bars 3 block the openings of the first side 15 and the second side 16, the outer frame is provided with a liquid inlet 13 and a liquid outlet 14, so that a communication path for flowing cooling liquid is formed inside the plate body 1.

Preferably, the plate body 1 is integrally extruded.

optionally, the plate body 1 is made of an aluminum alloy.

Preferably, the outer frame is provided with side plates 2 perpendicular to the outer frame on both sides perpendicular to the first side 15 and the second side 16, and the side plates 2 are integrally formed with the plate body 1. Make the battery can put into the U type groove that this body 1 of board and curb plate 2 formed through setting up curb plate 2, provide spacing, fixed action to the battery, and removed connecting piece or welding operation from with this 1 integrated into one piece's of board curb plate 2, improved production efficiency.

Preferably, the rib plates are milled to form a plurality of first rib plates 11 and a plurality of second rib plates 12, and two ends of the second rib plates 12 are arranged at intervals with the first side 15 and the second side 16; the first rib plate 11 comprises a first end and a second end, the first end is flush with the first side 15, and the second end and the second side 16 are arranged at intervals; alternatively, the first end is flush with the second side 16 and the second end is spaced from the first side 15.

Further, the first ends of two adjacent first rib plates 11 are located on different sides. First gusset 11 plays the guide effect to the coolant liquid flow direction, and its arrangement has decided the flow direction of coolant liquid, sets up the first end of two adjacent first gussets 11 at different sides, makes the coolant liquid can flow through each runner 100 in proper order, all can play good cooling effect to the battery homoenergetic in the battery module.

Preferably, the length and end position of the second rib 12 are not exactly the same. Because the flowing direction of the cooling liquid needs to be changed when the cooling liquid flows in the flow channel 100, the flow velocity of each part is not completely the same, and the second rib plates 12 with different lengths or different end positions are arranged, the flow velocity can be adjusted, the flow velocity of each part tends to be consistent, and the consistency of the temperature of the battery is improved.

The number of the first rib plates 11 is M, the number of the blocking strips 3 is N, and N is M +2, because the blocking strips 3 are used for blocking the openings of the first side 15 and the second side 16, and the openings of the first side 15 and the second side 16 are separated into a plurality of small openings by the first end of the first rib plates 11, the number of the blocking strips 3 on the first side 15 or the second side 16 is one more than that of the first rib plates 11 on the side, and the total number of the blocking strips 3 is two more than that of the first rib plates 11, so that the blocking effect can be realized.

Preferably, the liquid inlet 13 and the liquid outlet 14 are close to the edge of the outer frame, and the liquid inlet 13 and the liquid outlet 14 are disposed close to the edge of the outer frame, so that the cooling liquid can flow through all the flow channels 100.

Preferably, the distance between two adjacent rib plates is equal, so that the width of each flow channel 100 is the same, the flow rate difference of each flow channel 100 is reduced, and the consistency of the battery temperature is improved.

Preferably, the blanking strip 3 is welded to the plate body 1.

Optionally, the blocking strip 3 is bonded to the plate body 1.

The embodiment of the utility model discloses a still include a battery module, this battery module includes the liquid cooling plate of any above-mentioned embodiment, has good heat dispersion.

As a preferred embodiment of the present invention, in the description of the present specification, reference to the description of the terms "preferred", "optional", and the like, means that a particular feature, structure, material, or characteristic described in connection with the example or illustration is included in at least one example or illustration 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.

The above embodiments are only used to illustrate the detailed embodiments of the present invention, and the present invention is not limited to the above detailed embodiments, i.e. the present invention must not be implemented depending on the detailed embodiments. It should be clear to those skilled in the art that any improvement of the present invention, to the equivalent replacement of each raw material of the present invention, the addition of auxiliary components, the selection of specific modes, etc., all fall within the protection scope and disclosure scope of the present invention.

Claims

1. The utility model provides a liquid cooling board, its characterized in that, includes the board body and a plurality of putty strip of rectangle, board body integrated into one piece, including hollow frame and a plurality of gusset, the frame has open-ended first side and open-ended second side, first side with the second side sets up relatively, the gusset with first side reaches the second side is perpendicular, the gusset will after milling the shortening the internal partitioning of frame is a plurality of runners, the putty strip shutoff first side reaches the opening of second side, inlet and liquid outlet have been seted up on the frame, make the internal communicating path that supplies the coolant liquid to flow that forms of board body.

2. The liquid cooling plate according to claim 1, wherein the rib plates are milled to form a plurality of first rib plates and a plurality of second rib plates, two ends of each second rib plate are arranged at intervals with the first side and the second side, each first rib plate comprises a first end and a second end, the first ends are flush with the first sides, and the second ends are arranged at intervals with the second sides; or the first end is flush with the second side, and the second end and the first side are arranged at intervals.

3. The liquid cold plate of claim 2, wherein said first ends of two adjacent first webs are located on different sides.

4. The liquid cold plate of claim 2, wherein the length and end position of said second webs are not identical.

5. The liquid cooled plate of claim 2, wherein the number of first ribs is M, and the number of the blocking strips is N, N being M + 2.

6. The liquid cooling plate of claim 1, wherein the liquid inlet and the liquid outlet are both near an edge of the outer frame.

7. The liquid cooled plate of claim 1, wherein adjacent webs are equally spaced.

8. The liquid cooling plate of claim 1, wherein side plates perpendicular to the outer frame are disposed on two sides of the outer frame perpendicular to the first side and the second side, and the side plates are integrally formed with the plate body.

9. The liquid cooled panel of claim 8 wherein the blanking strip is welded to the panel body.

10. A battery module comprising the liquid-cooled panel according to any one of claims 1 to 9.