CN216958312U

CN216958312U - Buffer heat insulation structure between battery cores and battery core module

Info

Publication number: CN216958312U
Application number: CN202220201110.4U
Authority: CN
Inventors: 禹小溪
Original assignee: Hubei Eve Power Co Ltd
Current assignee: Hubei Eve Power Co Ltd
Priority date: 2022-01-25
Filing date: 2022-01-25
Publication date: 2022-07-12
Anticipated expiration: 2032-01-25

Abstract

The utility model relates to the technical field of power battery accessories, in particular to an inter-cell buffering and heat-insulating structure and a cell module, wherein the inter-cell buffering and heat-insulating structure is arranged between two adjacent cells and comprises foam cotton, a heat-insulating pad and a mica sheet, the foam cotton is provided with a containing hole, the heat-insulating pad is contained in the containing hole, and the mica sheet is arranged on one side of the foam cotton facing the cells. According to the utility model, the containing hole is formed in the foam, the heat insulation pad is contained in the containing hole, the heat insulation pad can block heat transfer between the battery cell and the battery cell, the foam has compression resilience performance, can absorb the tolerance of the battery cell in the grouping process of the battery cell modules and the expansion force in the circulation process of the battery cell modules, the heat resistance of the foam is poorer, the mica sheet is arranged on one side of the foam facing the battery cell, the heat conductivity coefficient of the mica sheet is low, the heat insulation effect is achieved, the heat transfer of the battery cell to the foam is effectively isolated, and the service life of the foam is prolonged.

Description

Buffer heat insulation structure between battery cores and battery core module

Technical Field

The utility model relates to the technical field of power battery accessories, in particular to a buffer heat insulation structure between battery cores and a battery core module.

Background

The power battery has the characteristics of small volume, light weight, large capacity and the like, and is widely applied to mobile equipment at present. Electric core is at the preparation module in-process in groups, can prevent that aerogel heat insulating mattress from coming the prevention thermal runaway between electric core and electric core, but the aerogel only possesses thermal-insulated function, and unable buffering absorbs electric core tolerance, also unable absorption module bulging force has the potential safety hazard.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a buffer heat insulation structure between battery cores, which has the buffer and heat insulation functions and improves the safety.

In order to achieve the purpose, the utility model adopts the following technical scheme:

the utility model provides a buffering thermal-insulated structure between electric core, sets up between two adjacent electric cores, includes:

the foam is provided with a containing hole,

the heat insulation pad is accommodated in the accommodating hole;

the mica sheet is arranged on one side, facing the battery core, of the foam cotton.

Preferably, the foam, the heat insulation pad and the mica sheet are packaged and molded.

Preferably, the mica sheet is bonded with the foam.

Preferably, the mica sheets include a first mica sheet and a second mica sheet, the foam has a first surface facing one of the cells and a second surface facing the other of the cells, the first mica sheet is bonded to the first surface, and the second mica sheet is bonded to the second surface.

Preferably, the first mica sheet is provided with a first through hole, and the first through hole corresponds to the accommodating hole.

Preferably, the second mica sheet is provided with a second through hole, and the second through hole corresponds to the accommodating hole.

Preferably, the accommodating hole, the first through hole and the second through hole are square holes.

Preferably, the thickness of the heat insulation pad is equal to that of the foam.

Preferably, the heat insulation pad is aerogel.

Another object of the present invention is to provide a battery cell module, wherein the above-mentioned buffer thermal insulation structure between battery cells is disposed between two adjacent battery cells.

The utility model has the beneficial effects that:

according to the utility model, the containing hole is formed in the foam, the heat insulation pad is contained in the containing hole, the heat insulation pad can block heat transfer between the battery core and the battery core, the foam has compression resilience performance, can absorb battery core tolerance in a battery core module grouping process and expansion force in a battery core module circulating process, the heat resistance of the foam is poor, the mica sheet is arranged on one side of the foam facing the battery core, the mica sheet has low heat conductivity coefficient and a heat insulation effect, the heat transfer of the battery core to the foam is effectively isolated, and the service life of the foam is prolonged.

The utility model also provides a battery cell module, wherein the buffer heat insulation structure between the battery cells is arranged between the two adjacent battery cells, so that the buffer heat insulation structure has the buffer and heat insulation functions, and the safety of the battery cell module is improved.

Drawings

Fig. 1 is an exploded view of the buffer heat insulation structure between cells according to the present invention.

In the figure:

100. an electric core;

1. soaking cotton;

2. a heat insulating pad;

3. mica sheets; 31. a first mica sheet; 32. a second mica sheet.

Detailed Description

The technical scheme of the utility model is further explained by combining the attached drawings and the embodiment. It is to be understood that the specific embodiments described herein are merely illustrative of the utility model and are not limiting of the utility model. It should be further noted that, for the convenience of description, only some but not all of the elements associated with the present invention are shown in the drawings.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection or a removable connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

In order to solve the above problem, the present embodiment provides a buffering and heat insulating structure between electric cores, as shown in fig. 1, the buffering and heat insulating structure between electric cores is disposed between two adjacent electric cores 100, and includes a foam 1, a heat insulating pad 2 and a mica sheet 3, wherein the foam 1 has a containing hole, and the heat insulating pad 2 is contained in the containing hole, specifically, the thickness of the heat insulating pad 2 in the present embodiment is equal to the thickness of the foam 1, so that the heat insulating pad 2 is contained in the containing hole, and the surface of the heat insulating pad 2 is flush with the surface of the foam 1. The mica sheet 3 is disposed on one side of the foam 1 facing the battery cell 100.

This embodiment is through seting up the holding hole on bubble cotton 1, with 2 holding of heat insulating mattress in the holding hole, heat transfer between heat insulating mattress 2 can separation electric core 100 and electric core 100, bubble cotton 1 possesses the compression resilience performance, can absorb electric core module in-process electricity core tolerance and electric core module circulation in-process inflation, bubble cotton 1 heat resistance is relatively poor, set up mica sheet 3 in one side of bubble cotton 1 towards electric core 100, mica sheet 3 coefficient of heat conductivity is low, possess thermal-insulated effect, effectively isolated electric core 100 heat transfer is for bubble cotton 1, the life of bubble cotton 1 has been prolonged.

Furthermore, after the mica sheet 3 is bonded with the foam 1, the heat insulation pad 2 and the mica sheet 3 are packaged and molded, and the battery cell is convenient to directly place in the middle of the battery cell 100 and convenient to operate.

Specifically, the mica sheet 3 includes a first mica sheet 31 and a second mica sheet 32, the first mica sheet 31 is bonded to one side of the foam 1 facing the battery cell 100, the foam 1 has a first surface facing one battery cell 100 and a second surface facing the other battery cell 100, the first mica sheet 31 is bonded to the first surface, and the second mica sheet 32 is bonded to the second surface. More specifically, the first mica sheet 31 is provided with a first through hole corresponding to the accommodating hole, and the second mica sheet 32 is provided with a second through hole corresponding to the accommodating hole.

More specifically, in this embodiment, the accommodating hole, the first through hole and the second through hole are square holes, and the heat insulation pad 2 is also a square structure, and it should be noted that the heat insulation pad 2 provided in this embodiment is aerogel.

This embodiment still provides an electricity core module, places as above between two adjacent electric cores 100 buffering thermal-insulated structure between electric core, has buffering and thermal-insulated function concurrently, has improved the security of electricity core module.

It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. The utility model provides a buffering thermal-insulated structure between electric core, sets up between two adjacent electric cores (100), its characterized in that includes:

the foam (1), the foam (1) is provided with a containing hole,

the heat insulation pad (2), the heat insulation pad (2) is accommodated in the accommodating hole;

the mica sheet (3), the mica sheet (3) set up in foam (1) orientation one side of electricity core (100).

2. The buffer heat insulation structure among the battery cells of claim 1, wherein the foam (1), the heat insulation pad (2) and the mica sheet (3) are packaged and molded.

3. The buffer heat insulation structure between battery cores according to claim 1, wherein the mica sheet (3) is bonded with the foam (1).

4. The buffer heat insulation structure between battery cells of claim 3, wherein the mica sheets (3) comprise a first mica sheet (31) and a second mica sheet (32), the foam (1) has a first surface facing one battery cell (100) and a second surface facing the other battery cell (100), the first mica sheet (31) is adhered to the first surface, and the second mica sheet (32) is adhered to the second surface.

5. The buffer heat insulation structure between battery cores of claim 4, wherein the first mica sheet (31) is provided with a first through hole, and the first through hole corresponds to the accommodating hole.

6. The buffer and thermal insulation structure between battery cores of claim 5, wherein a second through hole is formed on the second mica sheet (32), and the second through hole corresponds to the accommodating hole.

7. The buffer heat insulation structure among the battery cells of claim 6, wherein the accommodating hole, the first through hole and the second through hole are square holes.

8. The buffer heat insulation structure between battery cells as claimed in claim 1, wherein the thickness of the heat insulation pad (2) is equal to the thickness of the foam (1).

9. The buffer heat insulation structure between the battery cores according to claim 1, wherein the heat insulation pad (2) is aerogel.

10. A battery cell module, characterized in that the buffer thermal insulation structure between battery cells according to any one of claims 1 to 9 is disposed between two adjacent battery cells (100).