CN210156515U

CN210156515U - Battery liquid cooling plate

Info

Publication number: CN210156515U
Application number: CN201920899442.2U
Authority: CN
Inventors: 陈建君
Original assignee: Zhejiang Zhengcheng New Energy Technology Co Ltd
Current assignee: Zhejiang Zhengcheng New Energy Technology Co Ltd
Priority date: 2019-06-15
Filing date: 2019-06-15
Publication date: 2020-03-17
Anticipated expiration: 2029-06-15

Abstract

The utility model discloses a battery liquid cooling board, including two-sided inflation formula liquid cooling base plate and inlet tube and the outlet pipe of setting on the liquid cooling base plate, the liquid cooling base plate includes first inflation board and second inflation board, inflation has the liquid flow passageway on the liquid cooling base plate, the fixed first panel that is provided with on the first inflation board. The utility model discloses a liquid cooling board surface is level and smooth, convenient and battery piece cooperation installation.

Description

Battery liquid cooling plate

Technical Field

The utility model relates to a battery liquid cooling board.

Background

The liquid cooling plate is a plate type radiator with a liquid flow channel arranged inside, and heat is taken away from the surface of the liquid cooling plate through the circulating flow of cooling liquid in the liquid flow channel so as to cool the environment. Liquid-cooled panels have found wide application in the power electronics and electric automobile industries. The manufacturing method of the liquid cooling plate mainly comprises friction stir welding after die-casting forming, vacuum brazing after punch forming, and buried tube type water cooling plate and flat tube welding, and in recent years, the inflation type liquid cooling plate has become a new research hotspot due to the advantages of short development period, small mold investment and high production efficiency. However, the surface of the existing liquid cooling plate, especially the inflation type liquid cooling plate, is uneven, and the liquid cooling plate is very inconvenient to be installed with the battery block in a matching way.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a battery liquid cold drawing to solve the problem among the above-mentioned background art.

In order to realize the above object, a battery liquid cooling plate comprises a double-sided inflation type liquid cooling substrate, and a water inlet pipe and a water outlet pipe which are arranged on the liquid cooling substrate, wherein the liquid cooling substrate comprises a first inflation plate and a second inflation plate, a liquid flow channel is inflated on the liquid cooling substrate, and a first flat plate is fixedly arranged on the first inflation plate.

Further, a second flat panel is fixedly arranged on the second blowing plate.

Further, the first flat sheet is hot-rolled and compounded on the first inflation sheet.

Further, the second flat sheet is hot-rolled and compounded on the second inflation sheet.

Further, the first blowing plate, the second blowing plate, the first flat plate and the second flat plate are all made of aluminum alloy.

The utility model discloses an useful part lies in: the liquid cooling plate surface is level and smooth, and the liquid cooling plate is convenient to be installed in cooperation with the battery block.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a schematic view of the inner surface of a first caul plate printing flow channel of the present invention after positive printing.

Fig. 3 is a schematic view of the outer surface of a first flexographic printing flow channel after negative printing.

Fig. 4 is a schematic structural diagram of the battery liquid cooling plate crude product without the first flat plate and the second flat plate.

Fig. 5 is a schematic structural view of the liquid cooling substrate of the present invention.

Fig. 6 is a cross-sectional view of the present invention.

Wherein the second blowing plate is identical to the first blowing plate, please refer to the attached drawing of the first blowing plate.

Detailed Description

The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1-6, a battery liquid cooling plate comprises a double-faced inflation type liquid cooling substrate 1, and a water inlet pipe 2 and a water outlet pipe 3 which are arranged on the liquid cooling substrate, wherein the liquid cooling substrate comprises a first inflation plate 4 and a second inflation plate 5, a liquid flow channel 13 is inflated on the liquid cooling substrate, and a first flat plate 6 is fixedly arranged on the first inflation plate. Through the arrangement of the first plane plate, the surface of the liquid cooling plate is smooth, and the liquid cooling plate is convenient to be installed in a matched mode with the battery block.

In this embodiment, a second flat plate 7 is fixedly disposed on the second expansion plate. Through the setting of second plane board for another surface of liquid cooling plate is also smooth, and convenient and battery piece cooperation installation.

In this embodiment, the first flat sheet is hot-rolled and combined on the first inflation sheet. The blowing process is combined, so that the first flat plate and the first blowing plate are naturally fused together, the phenomena of welding leakage and weak lamp welding are avoided, and the heat conduction effect is good.

In this embodiment, the second flat sheet is hot-rolled and laminated on the second expansion sheet. The blowing process is combined, so that the first flat plate and the first blowing plate are naturally fused together, the phenomena of welding leakage and weak lamp welding are avoided, and the heat conduction effect is good.

In this embodiment, the first expansion plate, the second expansion plate, the first flat plate, and the second flat plate are made of aluminum alloy. The aluminum alloy is suitable for adopting a blowing process.

A preparation method of a battery liquid cooling plate comprises the following steps:

(1) printing a rolling inhibitor, symmetrically printing a flow channel positive image 8 on the inner surfaces of the first and second expansion plates by using the rolling inhibitor, and printing a flow channel negative image 9 corresponding to the flow channel positive image on the outer surfaces of the first and second expansion plates;

(2) assembling, namely stacking the first flat panel, the first blowing plate, the second blowing plate and the second flat panel in sequence, arranging and pressing the edges of the first flat panel, the first blowing plate, the second blowing plate and the second flat panel, and riveting and fixing the edges of the first flat panel, the first blowing plate, the second blowing plate and the second flat panel to form a green body;

(3) hot rolling, namely performing hot rolling and rolling composite treatment on the green body to form a cooked blank;

(4) annealing, namely placing the cooked blank in an annealing furnace for uniform annealing treatment;

(5) punching, wherein blowing holes 10 are formed in the edge of the annealed blank and communicated with a liquid flow channel;

(6) and blowing, namely blowing and molding the liquid flow channel through a blowing hole to prepare a crude product of the battery liquid cooling plate.

The method comprises the following steps that a positive image of a liquid flow channel is symmetrically printed on the inner surfaces of a first blowing plate and a second blowing plate by using a rolling resistance agent, so that the first blowing plate and the second blowing plate cannot be rolled and compounded together during hot rolling due to the blocking of the rolling resistance agent at the position of the positive image of the liquid flow channel, the first blowing plate and the second blowing plate at other parts can be rolled and compounded together, and the first blowing plate and the second blowing plate can be blown and bulged to form the liquid flow channel at the position corresponding to the positive image of the liquid flow channel during subsequent blowing; printing negative images of the flow channels corresponding to the positive images of the flow channels on the outer surfaces of the first expansion plate and the second expansion plate, namely printing no rolling inhibitor on the outer surfaces of the first expansion plate and the second expansion plate at the positions corresponding to the positive images of the flow channels, and printing rolling inhibitors on the positions except the positions, so that the first expansion plate and the first flat plate can be compounded together in the area of the positive images of the flow channels in the hot rolling process, and the other areas cannot be compounded together, so that the position corresponding to the negative images of the flow channels of the first expansion plate can be bulged and the first flat plate can be supported at the same time in the subsequent expansion process; the second inflation panel is identical in principle to the second flat panel and will not be described in detail here.

In this embodiment, after the step (6) of inflating, the method further includes a cutting step (7): the machining allowance 11 (the part outside the dotted line in fig. 4) is cut along the periphery of the crude liquid-cooled plate of the battery, and the liquid flow channel is cut off to form two liquid flow channel openings 12.

In this embodiment, after the cutting step, the method further includes a sealing step (8): and welding and sealing the two liquid flow channel ports, forming a water inlet hole and a water outlet hole on the surface of the battery liquid cooling plate, installing a water inlet pipe 2 on the water inlet hole, and installing a water outlet pipe 3 on the water outlet hole.

In this example, in the hot rolling in the step (3), the heating temperature was 430 ℃, the heating time was 0.5H, and the rolling speed was 5 m/min.

In the present embodiment, in the annealing of step (4), the annealing temperature is 460 ℃, and the annealing time is 3H.

The flow channel of the present invention is not limited to the scheme shown in the drawings of the above embodiments, and the actual flow channel can be designed in different ways according to the specific performance parameters of different products.

It should be understood by those skilled in the art that the above embodiments do not limit the present invention in any way, and all technical solutions obtained by adopting equivalent replacement or equivalent transformation fall within the protection scope of the present invention.

Claims

1. The utility model provides a battery liquid cooling board, includes two-sided inflation formula liquid cooling base plate and sets up inlet tube and outlet pipe on the liquid cooling base plate, the liquid cooling base plate includes first inflation board and second inflation board, the inflation has liquid flow channel, its characterized in that on the liquid cooling base plate: and a first flat plate is fixedly arranged on the first blowing plate.

2. The battery fluid cold plate of claim 1, wherein: and a second flat panel is fixedly arranged on the second blowing plate.

3. The battery fluid cold plate of claim 2, wherein: the first flat sheet is hot-rolled and combined on the first expansion plate.

4. The battery fluid cold plate of claim 2, wherein: the second flat sheet is hot-rolled and laminated to a second expanded sheet.

5. The battery fluid cold plate of claim 2, wherein: the first blowing plate, the second blowing plate, the first flat plate and the second flat plate are all made of aluminum alloy.