CN-115995630-B - Battery module with heat conduction pad piece, preparation method of battery module and glue overflow removing method

CN115995630BCN 115995630 BCN115995630 BCN 115995630BCN-115995630-B

Abstract

The invention discloses a battery module with a heat conduction pad piece, a preparation method thereof and a glue overflow removing method, which belong to the field of battery module product industry with cushion pads and heat conduction structural glue, and comprise a battery module, a liquid cooling plate and a heat conduction pad piece, wherein the liquid cooling plate is provided with the heat conduction pad piece, the heat conduction pad piece is provided with the battery module, the heat conduction pad piece can be with battery module's bottom surface and liquid cooling board connection as an organic wholely, makes the liquid cooling board interconnect of different battery module bottoms that close to through the liquid cooling pipeline, and the heat conduction pad piece has porous foaming gasket and heat conduction structural adhesive, and heat conduction structural adhesive fills in porous foaming gasket's inside the hole. The invention solves the problems of high cost of the original heat conduction pad, easy glue overflow and uneven glue coating in the common glue coating method, and the heat conduction pad can optimally improve the heat management mode of the original heat conduction pad to the bottom surface of the battery module, and has the advantages of low cost, good heat conduction effect, difficult glue overflow and even glue coating.

Inventors

LU HENGFEI
JIANG PING
WANG ZHAODONG
HE DILONG
WU YU

Assignees

桐城国轩新能源有限公司

Dates

Publication Date: 20260505
Application Date: 20221019

Claims (2)

1. The preparation method of the battery module with the heat conduction pad piece is characterized by comprising the following steps: Firstly, placing a battery module to be provided with a liquid cooling plate and a heat conducting pad on a corresponding tooling tray, and accurately positioning; step two, pasting and fixing the porous gasket for preparing the heat conduction pad piece on the liquid cooling plate; The inside of the porous gasket is provided with a meshed pore and a pore wall structure capable of separating the meshed pore, and the meshed pore and the pore wall structure separating the meshed pore are interconnected into a whole; Thirdly, placing the liquid cooling plate stuck with the porous gasket on a corresponding station of the glue spreader; fourthly, starting an automatic mechanical arm of the glue spreader, and coating the heat-conducting structure glue on the porous gasket on the liquid cooling plate adhered with the porous gasket; Fifthly, placing the liquid cooling plate coated with the heat conduction structural adhesive on the porous gasket into a corresponding heating tool; Hoisting the battery module onto the liquid cooling plate in the heating tool in the fifth step, namely hoisting the battery module, placing the battery module above the liquid cooling plate coated with the heat conduction structural adhesive on the porous gasket, pressurizing the heat conduction structural adhesive coated on the porous gasket through the dead weight of the battery module, so that the heat conduction structural adhesive is fully filled into the porous holes on the porous gasket, and enabling the bottom surface of the battery module to be fully contacted with the liquid cooling plate through the heat conduction structural adhesive and the porous gasket; Seventh, starting the heating tool to enable the heating tool to perform automatic heating work; Eighth step, after the automatic heating work of the heating tool is finished, the battery module product with the heat conduction pad is manufactured, the battery module product with the heat conduction pad is lifted out of the heating tool after the heating work is finished by using a lifting machine, and the manufacturing of the battery module product with the heat conduction pad is finished.
2. The method of manufacturing a battery module having a thermal pad according to claim 1, wherein the porous spacer is a foam member.

Description

Battery module with heat conduction pad piece, preparation method of battery module and glue overflow removing method Technical Field The invention relates to a battery module product with a cushion pad and heat-conducting structural adhesive and a preparation method thereof, and the technical field of glue overflow removing methods in the preparation of the battery module product, in particular to a battery module with a heat-conducting pad, a preparation method thereof and a glue overflow removing method. Background When electric vehicles are becoming popular, accidents or faults due to abnormal battery temperatures occur. Therefore, in manufacturing electric vehicles, there is also an increasing demand for battery module products that are matched with the electric vehicles, and for thermal management assemblies of corresponding battery module product systems. At present, a liquid cooling mode is adopted as a heat management mode of a battery module product system which is commonly adopted in the battery industry. The liquid cooling mode is water flow in the liquid cooling pipeline, so that heat generated in the operation of the battery module product system can be taken away, or the battery module product system can be heated and warmed through the liquid cooling pipeline in a low-temperature state, so that the whole operation of the battery module product system is ensured to be qualified and stable. In the existing liquid cooling heat management mode of the battery module product system, the battery module product system and the liquid cooling pipeline are generally connected through a heat conduction pad or a heat conduction structural adhesive and then subjected to heat exchange. But the common heat conducting pad has the advantages of simple structure, convenient application, high price and high manufacturing cost, and is not beneficial to reducing the product cost. The common heat-conducting glue mode has the advantages of lower price and contribution to the cost reduction of a battery module product system, but the common glue-spreading mode has the defects of easy glue overflow and uneven glue spreading. Therefore, we propose a battery module with a heat conduction pad, a preparation method and a glue overflow removing method, the heat conduction pad manufactured by the method integrates a buffer pad and heat conduction structural glue, can be connected with a liquid cooling plate, is used as a heat management product for manufacturing a novel battery module product system, and describes the preparation method of the battery module with the heat conduction pad and the glue overflow removing method in the preparation process. Disclosure of Invention The invention aims to solve the problems that the original heat conduction pad is high in cost, glue overflow and uneven glue coating are easy to occur in a common glue coating mode, and provides a battery module with a heat conduction pad and a preparation method thereof. The heat-conducting pad piece provided by the invention can optimize and improve the heat management mode of the original heat-conducting pad to the bottom surface of the battery module, has the advantages of low cost, good heat-conducting effect, difficulty in glue overflow and uniform glue coating, is suitable for being popularized and used as the heat-conducting pad piece for manufacturing the glue with the buffer pad and the heat-conducting structure when the battery module product is produced, is suitable for being popularized and used as the glue overflow removing method in manufacturing the battery module product with the heat-conducting pad piece, and has good application prospect. In order to achieve the above purpose, the present invention adopts the following technical scheme: The utility model provides a battery module with heat conduction pad spare, includes battery module and is located the thermal management system spare of battery module bottom, and the thermal management system spare has liquid cooling board and liquid cooling pipeline, and the liquid cooling board setting is in battery module's bottom, can make the liquid cooling board interconnect of the different battery module bottoms that close on through the liquid cooling pipeline, still includes: The heat management system component is provided with a heat conduction pad component, the liquid cooling plate is provided with a heat conduction pad component, the heat conduction pad component is provided with a battery module, the heat conduction pad component can connect the bottom surface of the battery module with the liquid cooling plate into a whole, the heat conduction pad component can replace a common heat conduction pad, the heat conduction effect is good, the heat conduction pad component can improve the connection compactness and stability of the bottom surface of the battery module and the liquid cooling plate under the condition of ensuring the good connection heat transfer performance of the bottom