CN-224232703-U - Cold plate, battery device and electric equipment

CN224232703UCN 224232703 UCN224232703 UCN 224232703UCN-224232703-U

Abstract

The application discloses a cold plate, a battery device and electric equipment. The cooling plate comprises a plate main body and a wear-resistant layer, wherein a cooling channel is arranged in the plate main body, and the wear-resistant layer is arranged on the outer surface of the plate main body and at least partially positioned between the plate main body and the battery cell. The technical scheme of the application can reduce the risk of leakage caused by the abrasion of the cold plate.

Inventors

LIU LEI
XIE SHENGKAI
LIU YIFEI
PAN XIN

Assignees

宁德时代新能源科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250320

Claims (11)

1. A battery device, characterized by comprising: a case; A battery unit arranged in the box body, and The cold plate is arranged in the box body and is abutted against the battery cell; The cooling plate comprises a plate main body and a wear-resistant layer, wherein a cooling channel is arranged in the plate main body, and the wear-resistant layer is arranged on the outer surface of the plate main body and at least partially positioned between the plate main body and the battery cell.
2. The battery device according to claim 1, wherein the wear-resistant layer is made of polyphenylene oxide or polyketone imine; and/or defining the thickness d1 of the wear-resistant layer, wherein the thickness d1 is more than or equal to 50 mu m and less than or equal to 100 mu m; And/or the wear-resistant layer and the plate body are adhesively connected.
3. The battery device of claim 1 or 2, wherein the cold plate further comprises an permeation resistant layer disposed between the plate body and the wear resistant layer; Or the permeation prevention layer is arranged on the inner surface of the plate main body.
4. The battery device of claim 3, wherein the outer surface of the plate body comprises: Two end surfaces which are arranged at intervals and are provided with a liquid passing port communicated with the cooling channel, and And the side peripheral surface is connected with the two end surfaces, and the wear-resistant layer and the permeation-resistant layer are arranged on the side peripheral surface under the condition that the permeation-resistant layer is arranged between the plate main body and the wear-resistant layer.
5. The battery device of claim 4, wherein the permeation prevention layer covers all of the side circumferential surfaces, and the wear layer covers all of the permeation prevention layer.
6. The battery device of claim 4, wherein the cold plate further comprises a first adhesive layer disposed between the wear layer and the permeation resistant layer; and/or the cold plate further comprises a second bonding layer, wherein the second bonding layer is arranged between the permeation prevention layer and the plate main body.
7. The battery device of claim 6, wherein the first adhesive layer is glue; and/or, the second bonding layer is glue.
8. The battery device of claim 3, wherein the wear layer has a thickness equal to the thickness of the permeation resistant layer; And/or the material of the permeation prevention layer is ethylene-vinyl alcohol copolymer, polypropylene, polyetherimide, polytetrafluoroethylene or polyimide; And/or defining the thickness d2 of the permeation prevention layer, wherein the thickness d2 is more than or equal to 50 mu m and less than or equal to 100 mu m.
9. A cold plate configured to abut a battery cell, the cold plate comprising: A plate body having cooling channels formed therein, and And the wear-resistant layer is arranged on the outer surface of the plate main body and is at least partially positioned between the plate main body and the battery cell.
10. The cold plate of claim 9, wherein the wear-resistant layer is made of polyphenylene oxide or polyketone imine; and/or defining the thickness d1 of the wear-resistant layer, wherein the thickness d1 is more than or equal to 50 mu m and less than or equal to 100 mu m; and/or the wear layer is adhesively connected to the plate body; The outer surface of the plate main body comprises two end surfaces and a side circumferential surface, the two end surfaces are arranged at intervals relatively, and the end surfaces are provided with liquid passing ports communicated with the cooling channels; And/or the cold plate further comprises an anti-permeation layer, wherein the anti-permeation layer is arranged between the plate main body and the wear-resistant layer, or the anti-permeation layer is arranged on the inner surface of the plate main body; And/or a reinforcing plate is arranged in the plate main body so as to divide and configure the cooling channel into at least two side-by-side sub-channels.
11. A powered device comprising a battery arrangement as claimed in any one of claims 1 to 8.

Description

Cold plate, battery device and electric equipment Technical Field The application relates to the technical field of batteries, in particular to a cold plate, a battery device and electric equipment. Background The battery device generates heat during operation, and therefore, a cold plate is usually disposed in the battery device to take away heat generated by the battery cells during operation. However, the battery device in the related art is inevitably in a vibration working condition scene during use. At this time, the battery cells in the battery device easily cause great friction to the cold plate, resulting in a risk of leakage due to the cold plate being easily worn out. Disclosure of utility model The application mainly aims to provide a battery device, which aims to reduce the risk of leakage caused by grinding through a cold plate. In order to achieve the above object, the present application provides a battery device comprising: a case; a battery unit arranged in the box body, and The cold plate is arranged in the box body and is abutted against the battery cell; the cold plate comprises a plate main body and a wear-resistant layer, wherein a cooling channel is arranged in the plate main body, and the wear-resistant layer is arranged on the outer surface of the plate main body and at least partially positioned between the plate main body and the battery cell. According to the battery device, the cold plate comprises the plate body and the wear-resistant layer positioned on the outer surface of the plate body, and the wear-resistant layer is at least partially positioned between the plate body and the battery cell, so that the cold plate can be contacted with the battery cell through the wear-resistant layer. And the friction coefficient of the outer surface of the cold plate can be reduced by the aid of the wear-resistant layer, so that friction loss of the battery monomer to the cold plate is low, and the risk of leakage caused by abrasion of the cold plate can be reduced. In some embodiments, the wear layer is made of polyphenylene oxide or polyketone imine; and/or defining the thickness d1 of the wear-resistant layer, wherein the d1 is more than or equal to 50 mu m and less than or equal to 100 mu m; And/or the wear-resistant layer is adhesively connected with the plate body. The material of the wear-resistant layer is polyphenylene oxide or polyketone imine, so that the wear-resistant layer can have excellent wear resistance, and further the wear resistance of the cold plate can be improved. The thickness of the wear-resistant layer is set, so that the wear resistance and the heat dissipation performance of the cold plate can be well considered. The wearing layer and the plate main body are in adhesive connection, so that the stability of connection between the wearing layer and the plate main body is improved, and the wearing layer and the plate main body cannot be damaged. In some embodiments, the cold plate further comprises an permeation resistant layer disposed between the plate body and the wear layer; or the permeation prevention layer is arranged on the inner surface of the plate main body. The permeation-proof layer can play a role in blocking the permeation of the cooling liquid so as to reduce the possibility of short circuit caused by insulation failure due to the fact that the cooling liquid in the cooling channel permeates to the outer side of the cold plate. In some embodiments, the outer surface of the plate body comprises: Two end surfaces which are arranged at intervals and are provided with a liquid passing port communicated with a cooling channel, and And the side peripheral surface is connected with the two end surfaces, and the wear-resistant layer and the permeation-resistant layer are arranged on the side peripheral surface under the condition that the permeation-resistant layer is arranged between the plate main body and the wear-resistant layer. The liquid passing port is arranged on the end face, and the wear-resistant layer and the anti-seepage layer are arranged on the side peripheral face, so that the liquid passing port can not influence the arrangement of the wear-resistant layer and the anti-seepage layer. In some embodiments, the permeation protection layer covers all of the side perimeter surface and the wear layer covers all of the permeation protection layer. The anti-seepage layer and the wear-resistant layer cover the whole side peripheral surface of the plate body, so that the wear-resistant effect and the anti-seepage effect of the cold plate can be improved, and meanwhile, the shape of the cold plate can be more regular, thereby being beneficial to improving the convenience of processing and forming the cold plate. In some embodiments, the cold plate further comprises a first adhesive layer disposed between the wear layer and the permeation resistant layer; And/or the cold plate further comprises a second adhesive layer, wherein the second adhesive l