CN218602533U

CN218602533U - A fire prevention heat-proof device that is used for thermal runaway protection between electric core

Info

Publication number: CN218602533U
Application number: CN202221879949.XU
Authority: CN
Inventors: 施旭飞; 江钰; 陈雷
Original assignee: Tambo Electric Material Nantong Co ltd
Current assignee: Tambo Electric Material Nantong Co ltd
Priority date: 2022-07-20
Filing date: 2022-07-20
Publication date: 2023-03-10
Anticipated expiration: 2032-07-20

Abstract

The utility model discloses a fireproof heat insulation device for thermal runaway protection between battery cores, which comprises a pair of mica plates, a hard support piece forming a ventilation space is arranged between the pair of mica plates, and the pair of mica plates are fixedly connected through the hard support piece; the hard support is made of an insulating material; the utility model provides an electricity core protection device through forming the ventilation space between a pair of mica plate, can improve ventilation cooling efficiency, and through mica plate and the direct fixed connection of electric core, area of contact between mica plate and electric core is the biggest, even electric core inflation also can not be cut through by the mica plate, is favorable to improving the life of electric core.

Description

A fire prevention heat-proof device that is used for thermal runaway protection between electric core

Technical Field

The utility model relates to an energy storage technology field specifically is a fire prevention heat-proof device that is used for thermal runaway protection between electric core.

Background

The battery cores are arranged together to form a battery core bundle for supplying energy together. In a cell bundle, a heat insulation device is usually disposed between adjacent cells. In the prior art, the insulation is a rigid sheet made of a heat-resistant material. And in the cell bundle, the hard plate and the adjacent cells are arranged together in a manner of being next to each other. The heat dissipation effect between the cells is relatively poor. In order to solve this technical problem, the prior art provides a rigid support structure between the rigid plate and the battery cell, so as to form a ventilated space between the rigid plate and the battery cell. The rigid support structures are usually thin strips or blocks with small areas, so that the contact area between the rigid support structures and the battery cell is small. However, the battery cell can slowly expand in the using process, and when the contact area between the rigid support structure and the battery cell is small, the rigid support structure easily cuts the battery cell, so that the service life of the battery cell is shortened due to damage.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire prevention heat-proof device that is used for thermal runaway protection between electric core to solve the problem that proposes in the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a fireproof heat insulation device for thermal runaway protection between battery cores comprises a pair of mica plates, a hard support member forming a ventilation space is arranged between the pair of mica plates, and the pair of mica plates are fixedly connected through the hard support member; the hard support is made of an insulating material.

As an optimized technical proposal of the utility model, the hard supporting piece is made of mica, epoxy resin, polycarbonate, vulcanized fiber paper or acrylic material.

As an optimized technical solution of the present invention, the hard supporting member is block-shaped.

As an optimized technical proposal of the utility model, the hard supporting piece is strip-shaped.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model provides an electricity core protection device through forming the ventilation space between a pair of mica plate, can improve ventilation cooling efficiency, and through mica plate and the direct fixed connection of electric core, area of contact between mica plate and electric core is the biggest, even electric core inflation also can not be cut through by the mica plate, is favorable to improving the life of electric core.

Drawings

Fig. 1 is a schematic structural diagram of a fireproof heat insulation device for thermal runaway protection between cells, wherein when the rigid support members are strip-shaped, a plurality of strip-shaped rigid support members are parallel to each other and the distances between adjacent strip-shaped rigid support members are equal;

fig. 2 is a schematic structural diagram of a fire-proof and heat-insulating device for thermal runaway protection between cells, in which when the rigid supporting members are in the form of strips, a plurality of strip-shaped rigid supporting members are parallel to each other and the spacing between adjacent strip-shaped rigid supporting members is random;

fig. 3 is a schematic structural view of the fireproof and heat-insulating device for thermal runaway protection between cells, wherein when the rigid supporting members are in the form of strips, the strip-shaped rigid supporting members are not completely parallel to each other;

fig. 4 is a schematic structural diagram of a fireproof heat insulation device for thermal runaway protection between cells, when hard support members are in a block shape, a plurality of block-shaped hard support members are arranged at equal intervals along the X-axis direction and distributed at equal intervals along the Y-axis direction;

fig. 5 is a schematic structural view illustrating that when hard support members are blocky, the distance between the blocky hard support members adjacent to each other in the X-axis direction is randomly distributed between a pair of mica layers, or the distance between the blocky hard support members adjacent to each other in the Y-axis direction is randomly distributed between the pair of mica layers in the fireproof and heat insulation device for inter-cell thermal runaway protection;

fig. 6 is a schematic structural diagram of a fire-proof and heat-insulating device for thermal runaway protection between cells, in which when the rigid supporting members are in a block shape, the strip-shaped rigid supporting members are not completely parallel to each other.

In the figure: 1. mica plates; 2. a hard support.

Detailed Description

In order to make the technical solutions in the embodiments of the present application better understood, the technical solutions in the embodiments of the present application will be described below clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only partial embodiments of the present application, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

It should be noted that, in case of conflict, the embodiments and features of the embodiments in the present application can be combined with each other, and the present application will be described in detail with reference to fig. 1 to 6 in conjunction with the embodiments.

Example 1

As shown in fig. 1-6, a fire-proof and thermal-insulation device for thermal runaway protection between battery cells comprises a pair of mica plates 1, a hard support member 2 forming a ventilation space is arranged between the pair of mica plates 1, and the pair of mica plates 1 are fixedly connected through the hard support member 2; the hard support 2 is made of an insulating material; the hard support 2 is made of mica, epoxy resin, polycarbonate, vulcanized fiber paper or acryl material. When in use, the pair of mica plates 1 are respectively and fixedly connected with the battery core.

The hard support 2 is of a strip-like structure. The hard support members 2 in a strip-like structure are distributed between the pair of mica boards 1 in the following three arrangements:

A. the plurality of strip-shaped hard supporting pieces 2 are parallel to each other, and the distances between the adjacent strip-shaped hard supporting pieces 2 are equal; as shown in FIG. 1;

B. the plurality of strip-shaped hard supporting pieces 2 are parallel to each other, and the distance between every two adjacent strip-shaped hard supporting pieces 2 is random; as shown in fig. 2;

C. the plurality of strip-shaped hard supporting pieces 2 are not completely parallel to each other; as shown in fig. 3;

in this embodiment: the utility model provides an electricity core protection device through forming the ventilation space between a pair of mica plate 1, can improve ventilation cooling efficiency, and through mica plate 1 and the direct fixed connection of electric core, area of contact between mica plate 1 and electric core is the biggest, even electric core inflation also can not be cut through by mica plate 1, is favorable to improving the life of electric core. Be the strip structure through injecing stereoplasm support piece 2, can utilize the clearance between the strip structure to strengthen the ventilation realization heat dissipation and realize the heat dissipation, a pair of opposite side on the stereoplasm support piece 2 respectively with a mica plate 1 fixed connection, the clearance between the banding stereoplasm support piece 2 can let the circulation of air, the heat dissipation of being convenient for.

Example 2

Based on example 1, the hard support 2 is a block structure.

The massive hard support members 2 are distributed between a pair of mica boards 1 in a random distribution manner. The method comprises the following specific steps:

D. as shown in fig. 1, the block-shaped hard supports 2 adjacent to each other in the X-axis direction are equally spaced and the block-shaped hard supports 2 adjacent to each other in the Y-axis direction are equally spaced between a pair of mica layers 1 of the mica layers 1; as shown in fig. 4;

E. as shown in fig. 2, the spacing between the block-shaped hard support members 2 adjacent to each other in the X-axis direction is randomly distributed between the pair of mica layers 1, or the spacing between the block-shaped hard support members 2 adjacent to each other in the Y-axis direction is randomly distributed between the pair of mica layers 1; as shown in fig. 5;

F. as shown in fig. 3, the hard support members 2 in block form are not arranged along the X-axis direction or the Y-axis direction, but are randomly arranged between a pair of mica layers 1, as shown in fig. 6.

The technical effects of the embodiment are as follows: through setting up stereoplasm support piece 2 for massive structure, because the clearance between the massive structure is bigger, so massive structure's stereoplasm support piece 2 ventilation cooling efficiency is higher.

In view of the above, only the preferred embodiments of the present invention are provided, but the protection scope of the present invention is not limited thereto, and any person skilled in the art will be able to replace or change the technical scope of the present invention within the technical scope disclosed by the present invention.

Claims

1. A fireproof and heat-insulating device for thermal runaway protection between battery cores is characterized by comprising a pair of mica plates (1), a hard support member (2) forming a ventilation space is arranged between the pair of mica plates (1), and the pair of mica plates (1) are fixedly connected through the hard support member (2); the hard support (2) is made of an insulating material.

2. The device according to claim 1, wherein the rigid support (2) is made of mica, epoxy resin, polycarbonate, vulcanized fiber paper or acrylic material.

3. A fire protection and insulation arrangement for protection against thermal runaway between cells as claimed in claim 1 or 2, characterised in that the rigid support (2) is massive.

4. The device as claimed in claim 1 or 2, characterized in that the rigid support (2) is in the form of a strip.