CN213124586U

CN213124586U - Battery pack accommodating device

Info

Publication number: CN213124586U
Application number: CN202021365382.5U
Authority: CN
Inventors: 吴珍荣
Original assignee: Envision Power Technology Jiangsu Co Ltd
Current assignee: Envision Power Technology Jiangsu Co Ltd
Priority date: 2020-07-13
Filing date: 2020-07-13
Publication date: 2021-05-04
Anticipated expiration: 2030-07-13

Abstract

The utility model discloses a battery pack accommodating device, which comprises a box body and a box cover, wherein a plurality of clapboards are arranged in the box body, and divide an inner cavity of the box body into a plurality of cavities by the clapboards; each cavity is provided with at least one explosion-proof valve. It can guarantee that thermal runaway can not follow the cavity diffusion of place to the next door cavity in, in time with gas outgoing, the security is high.

Description

Battery pack accommodating device

Technical Field

The utility model relates to a battery technology field, concretely relates to battery package accommodate device.

Background

The existing power lithium battery pack has frequent automobile ignition accidents caused by thermal runaway, and seriously threatens the personal safety, so the requirement on thermal diffusion of the battery pack is newly added in a new standard GB38031-2020 set by the state. The prior art is relatively lack of thermal runaway prevention and has relatively few practical applications in battery systems.

The prior art adopts materials such as mica to carry out thermal runaway protection basically, can't keep apart the module in solitary cavity, consequently can only delay the time of thermal runaway, and finally the whole package still can take place the thermal runaway, can't reach the purpose of controlling the thermal runaway in certain extent.

Disclosure of Invention

The to-be-solved technical problem of the utility model is to provide a battery contains receives device, it can guarantee that thermal runaway can not spread the next door cavity from place cavity in, in time with gas outgoing, and the security is high.

In order to solve the technical problem, the utility model provides a battery pack accommodating device, which comprises a box body and a box cover, wherein a plurality of partition plates are arranged in the box body, and divide an inner cavity of the box body into a plurality of cavities by the plurality of partition plates; each cavity is provided with at least one explosion-proof valve.

Preferably, the plurality of separators are arranged in parallel.

Preferably, the plurality of separators are disposed at equal intervals.

Preferably, each cavity is provided with two explosion-proof valves, the two explosion-proof valves are symmetrically arranged relative to the cavity, and the explosion-proof valves are arranged on the box body.

Preferably, a plurality of first heat-insulating fireproof layers are arranged in the cavity and divide the cavity into a plurality of accommodating grooves for accommodating the battery modules.

Preferably, the first heat-insulating and fire-proof layers in the cavity are arranged in parallel at equal intervals.

Preferably, both sides of the partition board are provided with second heat-insulating and fireproof layers.

Preferably, a third heat-insulating and fire-proof layer is arranged on the top of the cavity.

Preferably, the partition plate is an inverted T-shaped reinforcing rib.

Preferably, the box cover and the partition plate are locked by a locking member.

The utility model has the advantages that:

1. the utility model discloses be provided with a plurality of baffles in the box, it is a plurality of the baffle separates into a plurality of cavitys with the inner chamber of box, when battery module is out of control, can guarantee that thermal runaway can not spread the next door cavity from place cavity in, influence the battery module in other cavitys.

2. The utility model discloses in every the cavity disposes at least one explosion-proof valve, when battery module takes place the thermal runaway, will open the explosion-proof valve, with gas outgoing, so, can be with thermal runaway control within the certain limit.

3. The utility model discloses compact structure, the security is high.

Drawings

Fig. 1 is a schematic structural view of the present invention;

fig. 2 is a schematic structural diagram of the box body, the partition plate and the explosion-proof valve of the present invention.

The reference numbers in the figures illustrate: 10. a box body; 20. a box cover; 30. a partition plate; 40. an explosion-proof valve; 50. a first heat-insulating fireproof layer; 51. a second heat-insulating fireproof layer; 52. a third heat-insulating fireproof layer; 60. a battery module is provided.

Detailed Description

The present invention is further described with reference to the following drawings and specific embodiments so that those skilled in the art can better understand the present invention and can implement the present invention, but the embodiments are not to be construed as limiting the present invention.

Referring to fig. 1-2, the utility model discloses a battery container receiving device, which comprises a box body 10 and a box cover 20, wherein the box body 10 is matched with the cover body. A plurality of partition plates 30 are arranged in the box body 10, the partition plates 30 divide the inner cavity 10 of the box body into a plurality of cavities, and each cavity is provided with at least one explosion-proof valve 40. Can place multiunit battery module 60 in every cavity, because baffle 30 separates into a plurality of cavities with box 10, and every cavity disposes at least one explosion-proof valve 40, so, when battery module 60 out of control, can guarantee that thermal runaway takes place in battery module 60 place cavity, and can not diffuse in the next door cavity, influence the battery module in other cavities. When thermal runaway occurs in the battery module 60, the explosion-proof valve 40 is opened to discharge gas.

The utility model discloses in, box 10, case lid 20 and baffle 30 can adopt the fire prevention material. As shown in fig. 2, the partitions 30 divide the housing 10 into four separate chambers. The plurality of partition plates 30 are arranged in parallel, and the plurality of partition plates 30 are arranged at equal intervals. Thus, the utility model is beautiful and tidy.

In another embodiment, each chamber is provided with two explosion-proof valves 40, the two explosion-proof valves 40 are symmetrically arranged relative to the chamber, and the explosion-proof valves 40 are arranged on the box body 10. Two explosion-proof valves 40 are configured in each cavity, so that the safety performance can be improved, and the stability is higher.

As shown in fig. 1, a plurality of first heat-insulating and fireproof layers 50 are disposed in the cavity, and the cavity is partitioned into a plurality of accommodating grooves for accommodating the battery modules 60 by the plurality of first heat-insulating and fireproof layers 50. A plurality of groups of battery modules 60 can be placed in a single cavity, and the first heat-insulating and fireproof layer 50 can separate the battery modules 60, so that the thermal diffusion between the battery modules 60 and the battery modules is prevented, and the thermal runaway time in the cavity is prolonged. The parallel equidistant setting of first thermal-insulated flame retardant coating 50 in the cavity, so, be convenient for place the battery module 60 that the size is the same, pleasing to the eye and save space.

The partition 30 is provided with a second insulating and fireproof layer 51 on both sides thereof, so that heat transfer between the chamber and the cavity can be blocked.

The third heat-insulating and fireproof layer 52 is arranged at the top of the cavity, so that the stability in the cavity can be further improved, and the expansion can be prevented. The utility model discloses in, first thermal-insulated flame retardant coating 50, the thermal-insulated flame retardant coating 51 of second and the thermal-insulated flame retardant coating 52 of third all are prepared through thermal-insulated fire-proof material, and thermal-insulated fire-proof material can be for one kind or the multiple material composition in mica plate, ceramic felt and the aerogel. One side of the thermal fireproof material in the embodiment is sprayed by flame at 1500 ℃, and the other side of the thermal fireproof material can keep at 300 ℃ for 30min, so that the fireproof and heat-insulating effects can be effectively achieved.

The utility model discloses in, baffle 30 is the type of falling T strengthening rib. The reinforcing ribs and the box body 10 can be locked and fixed through screws. The reinforcing ribs can enhance the internal structure of the box body 10 and improve the stability of the box body 10.

The cover 20 and the partition 30 are locked by a locking member. The locking member may be a screw or bolt. The cover 20 and the case 10 may be locked together by a locking member, which may be a screw or a bolt. In this way, the cover 20 can be secured more tightly to the case 10.

In the utility model, the inner cavity of the box body 10 is divided into a plurality of cavities by the partition boards 30, thus realizing that each cavity is independent, one cavity is out of control due to thermal runaway and can not affect other cavities, and the explosion-proof valve 40 can discharge the gas in the cavity in time; the plurality of first heat-insulating and fireproof layers 50 further divide the cavity into accommodation grooves for accommodating the battery modules 60, which divide the plurality of battery modules 60 to prevent heat diffusion between the battery modules 60 and other battery modules; the third heat-insulating and fireproof layer 50 is arranged at the top of the cavity, so that the heat-insulating property of the cavity can be further improved, and the effect of delaying heat diffusion is achieved.

The above-mentioned embodiments are merely preferred embodiments for fully illustrating the present invention, and the scope of the present invention is not limited thereto. Equivalent substitutes or changes made by the technical personnel in the technical field on the basis of the utility model are all within the protection scope of the utility model. The protection scope of the present invention is subject to the claims.

Claims

1. A battery pack accommodating device is characterized by comprising a box body and a box cover, wherein a plurality of partition plates are arranged in the box body and divide an inner cavity of the box body into a plurality of cavities; each cavity is provided with at least one explosion-proof valve;

be provided with a plurality of first thermal-insulated flame retardant coating in the cavity, it is a plurality of first thermal-insulated flame retardant coating will a plurality of holding tanks that hold the battery module are separated into to the cavity.

2. The battery pack housing apparatus of claim 1, wherein a plurality of said separators are arranged in parallel.

3. The battery pack receiving apparatus of claim 2, wherein a plurality of said separators are disposed at equal intervals.

4. The battery pack receiving apparatus of claim 2, wherein each of said chambers is configured with two explosion-proof valves, said two explosion-proof valves being symmetrically disposed with respect to said chamber, said explosion-proof valves being disposed on the case.

5. The battery pack containment apparatus of claim 1, wherein the first insulating and fire blocking layers within the cavity are disposed in parallel and equally spaced apart relation.

6. The battery pack containment apparatus of claim 1, wherein the partition is provided with a second insulating and fire-blocking layer on both sides.

7. The battery pack containment apparatus of claim 1, wherein a third insulating and fire-blocking layer is disposed on top of the cavity.

8. The battery pack containment apparatus of claim 1, wherein the spacer is an inverted T-shaped stiffener.

9. The battery pack accommodating device according to claim 8, wherein the cover and the partition are locked by a locking member.