CN-224204178-U - Heat insulation support for lithium ion battery protection plate

Abstract

The utility model discloses a heat-insulating support for a lithium ion battery protection plate, which structurally comprises a lithium ion BMS protection plate main body and is characterized in that the support main body is formed by fixedly connecting a bottom plate with a surrounding baffle, the bottom plate is of a plate-shaped structure, a plurality of connecting columns are fixedly arranged on the bottom plate and used for fixing the lithium ion BMS protection plate main body, an opening is formed in the bottom of the bottom plate and is convenient for heat dissipation, a special heat-insulating coating is coated on the surface of the support main body, the thickness of the heat-insulating coating is 0.05-0.1 mm, a plurality of vertical plates are fixedly arranged on the side part of the surrounding baffle, bolt holes are formed in the vertical plates, the vertical plates are spliced and installed with the adjacent support main bodies through the bolt holes, heat between the lithium ion BMS protection plate main body and a battery is effectively isolated through the special heat-insulating coating, heat superposition is avoided, and internal temperature rise of the battery pack is reduced. The utility model belongs to the field of lithium ion batteries, and particularly relates to a heat insulation support of a lithium ion battery protection plate.

Inventors

• SUN KE
• CHEN HAO
• ZOU JISHENG

Assignees

• 广东锂华新能源科技有限公司

Dates

Publication Date

20260505

Application Date

20250318

Claims (10)

1. 1. The utility model provides a thermal-insulated support of lithium ion battery protection shield, includes lithium ion BMS protection shield main part, its characterized in that still includes the support main part: the bracket main body is formed by fixedly connecting a bottom plate and a surrounding baffle, the bottom plate is of a plate-shaped structure, and a plurality of connecting columns are fixedly arranged on the bottom plate and used for fixing the lithium ion BMS protection plate main body; an opening is formed in the bottom of the bottom plate, so that heat dissipation is facilitated; The surface of the bracket main body is coated with a special heat-insulating coating, and the thickness of the heat-insulating coating is 0.05-0.1 mm; the side part of the enclosure is fixedly provided with a plurality of vertical plates, bolt holes are formed in the vertical plates, and the vertical plates are spliced and installed with the adjacent bracket main bodies through the bolt holes.
2. 2. The heat-insulating support for the lithium ion battery protection plate of claim 1, wherein the support body is made of metal plates or aluminum alloy materials, and the bottom plate and the enclosure are fixed by welding or bolting.
3. 3. The heat-insulating support for a lithium ion battery protection plate according to claim 2, wherein the heat-insulating coating is made of a material with extremely low heat conductivity coefficient and is selected from a ceramic coating or a nano heat-insulating material.
4. 4. The heat-insulating support for the lithium ion battery protection plate of claim 3, wherein the connecting column is designed according to the installation position of the lithium ion BMS protection plate body, and the support body and the lithium ion BMS protection plate body are fixed by screws.
5. 5. The heat-insulating support for the lithium ion battery protection plate, as set forth in claim 4, wherein the bolt holes on the vertical plate are used for splicing and installing with adjacent support bodies, so that the plurality of supports can be assembled and fixed conveniently, and the plurality of bolt holes are arranged on the vertical plate so as to adapt to the adjacent support bodies with different sizes.
6. 6. The lithium ion battery protection plate heat-insulating support according to claim 5, wherein the bottom plate and the enclosure of the support main body are manufactured by adopting an integrated molding process, and reinforcing ribs are arranged between the bottom plate and the enclosure so as to increase the overall strength and stability of the support.
7. 7. The heat-insulating support for a lithium ion battery protection plate of claim 6, wherein the bottom opening of the bottom plate of the support body is designed to be grid-shaped or strip-shaped to increase the heat dissipation area.
8. 8. The lithium ion battery protection plate heat insulation support according to claim 7, wherein the height of the enclosure of the support body is designed according to the thickness of the lithium ion BMS protection plate body, and effective isolation between the protection plate and the battery is ensured.
9. 9. The heat-insulating support for the lithium ion battery protection plate, as set forth in claim 8, wherein the heat-insulating coating of the support body is uniformly coated on the surface of the support by spraying, glue coating or varnish baking process, and the heat-insulating coating material has the characteristics of high temperature resistance and corrosion resistance.
10. 10. The heat-insulating support for the lithium ion battery protection plate of claim 9, wherein a shock pad is arranged between the bottom plate of the main body of the lithium ion battery protection plate and the enclosure to reduce impact and noise of the battery pack in a vibration environment.

Description

Heat insulation support for lithium ion battery protection plate Technical Field The utility model belongs to the field of lithium ion batteries, and particularly relates to a heat insulation support of a lithium ion battery protection plate. Background The lithium ion battery is widely applied to the fields of electric automobiles, energy storage systems, consumer electronics and the like due to the advantages of high energy density, long cycle life and the like. However, the lithium ion battery generates a large amount of heat during the charge and discharge process, and if the heat cannot be effectively dissipated, the battery temperature may be too high, so that safety accidents such as thermal runaway and the like are caused. Battery Management System (BMS) protection boards are an important component in lithium ion battery packs, and also generate heat during operation. In the prior art, the heat management between the protection plate and the battery is generally carried out in two ways, namely, the protection plate is directly contacted with the battery, and the heat is isolated by adding a separator (such as a metal plate, an epoxy plate, foam cotton and the like) between the protection plate and the battery. However, these methods have a problem of heat superposition, resulting in an increase in the internal temperature of the battery pack, increasing the risk of thermal safety accidents. Disclosure of utility model The utility model aims to solve the technical problem that the battery pack heat insulation device is easy to cause the internal temperature to rise and has potential safety hazard. In order to solve the problems, the technical scheme adopted by the utility model is that the lithium ion battery protection board heat insulation support comprises a lithium ion BMS protection board main body and further comprises a support main body: the bracket main body is formed by fixedly connecting a bottom plate and a surrounding baffle, the bottom plate is of a plate-shaped structure, and a plurality of connecting columns are fixedly arranged on the bottom plate and used for fixing the lithium ion BMS protection plate main body; an opening is formed in the bottom of the bottom plate, so that heat dissipation is facilitated; The surface of the bracket main body is coated with a special heat-insulating coating, and the thickness of the heat-insulating coating is 0.05-0.1 mm; the side part of the enclosure is fixedly provided with a plurality of vertical plates, bolt holes are formed in the vertical plates, and the vertical plates are spliced and installed with the adjacent bracket main bodies through the bolt holes. Further, the bracket main body is made of metal plates or aluminum alloy materials, and the bottom plate and the enclosure are fixed through welding or bolting. Furthermore, the heat-insulating coating is made of a material with extremely low heat conductivity coefficient and is selected from ceramic coating or nano heat-insulating material, so that heat between the protective plate and the battery can be effectively isolated. Further, the position of the connecting column is designed according to the installation position of the lithium ion BMS protection plate main body, and the bracket main body and the lithium ion BMS protection plate main body are fixed through screws. Further, the bolt holes on the vertical plate are used for being spliced and installed with the adjacent bracket main bodies, so that a plurality of brackets can be conveniently assembled and fixed, and the vertical plate is provided with a plurality of bolt holes so as to adapt to the adjacent bracket main bodies with different sizes. Further, the bottom plate of the support main body and the enclosure are manufactured by adopting an integrated forming process, and reinforcing ribs are arranged between the bottom plate and the enclosure so as to increase the overall strength and stability of the support. Further, the bottom opening of the bottom plate of the bracket main body is designed to be grid-shaped or strip-shaped so as to increase the heat dissipation area. Further, the enclosure height of the support body is designed according to the thickness of the lithium ion BMS protection plate body, and effective isolation between the protection plate and the battery is ensured. Further, the thermal insulation coating of the bracket main body is uniformly coated on the surface of the bracket through spraying, glue coating or varnish baking technology, and the thermal insulation coating material has the characteristics of high temperature resistance and corrosion resistance, and is suitable for various severe environments. Further, a shock pad is arranged between the bottom plate of the lithium ion BMS protection plate main body and the enclosure, so that impact and noise of the battery pack in a vibration environment are reduced. The beneficial effects obtained by the utility model by adopting the structure are as follo