CN217641615U

CN217641615U - Battery pack structure

Info

Publication number: CN217641615U
Application number: CN202221335160.8U
Authority: CN
Inventors: 卢勇; 任宇航; 郑红日
Original assignee: Beijing Key Power Technology Co ltd
Current assignee: Beijing Key Power Technology Co ltd
Priority date: 2022-05-31
Filing date: 2022-05-31
Publication date: 2022-10-21
Anticipated expiration: 2032-05-31

Abstract

The utility model discloses a battery pack structure, which comprises a box body and a clapboard arranged in the box body, wherein the accommodating cavities are a first accommodating cavity and a second accommodating cavity which are separated from each other, a battery pack, a first box cover and a second box cover respectively through the clapboard; the top of the box body is provided with two channels, and each channel is communicated with the accommodating cavity on one corresponding side; the top of the box body closes the two channels through the BDU. The utility model discloses a battery package structure is cut apart two through the baffle and is held the chamber to two passageways that utilize the box top to set up realize the electricity with BDU and be connected, need not realize the electrical connection of two group batteries through trompil on the baffle, thereby when avoiding one side group battery to catch fire the intensity of a fire and stretch to one side in addition, the security is better.

Description

Battery pack structure

Technical Field

The utility model relates to a lithium ion battery technical field especially relates to a battery package structure.

Background

In the prior art, a chinese utility model patent with application number 202121199332.9, entitled "a battery pack structure" discloses a battery pack, which includes a case body, a hollow space formed in the interior of the case body as a containing cavity, and a battery pack installed in the containing cavity of the case body; simultaneously, box internally mounted has the baffle, should hold the chamber and pass through the baffle is cut apart into two parts, is the first chamber and the second chamber that holds respectively, the quantity of group battery is two sets ofly, and is two sets of the group battery inlays respectively to be adorned in the first chamber that holds and the second chamber that holds. The both sides of box all are open structure, just the open structure department of box installs the case lid, two the case lid is used for sealing the chamber that holds that corresponds one side respectively. In addition, it is disclosed in this prior art's specification that at least one through-hole has been seted up on the baffle, through this through-hole realization two electrical connection between the group battery, when the group battery that one of them holds the intracavity appears the thermal runaway and catches fire, can stretch to the holding intracavity of opposite side through this through-hole intensity of a fire, the group battery that triggers the holding intracavity of opposite side takes place the thermal runaway.

Therefore, in view of the above technical problems, those skilled in the art need to develop a novel battery pack structure capable of preventing fire from spreading into the receiving cavity on the other side.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a need not to realize the electrical connection of two group batteries, effectively avoided leading to the intensity of a fire to stretch easily to the problem of opposite side, novel structure's battery package structure because of the baffle trompil on the baffle.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model discloses a battery package structure, this battery package structure includes:

the box body is internally hollow to form an accommodating cavity, and two ends of the box body are of open structures;

the accommodating cavity is a first accommodating cavity and a second accommodating cavity which are separated from each other through the partition plate;

the battery packs are respectively arranged in the first accommodating cavity and the second accommodating cavity; and

the first box cover is buckled with the open structure of the first accommodating cavity, and the second box cover is buckled with the open structure of the second accommodating cavity;

two channels are formed in the top of the box body, and each channel is communicated with the accommodating cavity on the corresponding side; and

the BDU is integrated at the top of the box body and closes the two channels;

the battery packs are electrically connected with the BDU through the channels on the corresponding sides, so that the BDU can realize the electrical connection between the two battery packs.

Furthermore, a fireproof heat insulation layer is arranged between the partition board and the battery pack on one side of the partition board;

the fireproof heat insulation layer is used for blocking heat transfer of the first accommodating cavity and the second accommodating cavity.

Furthermore, a plurality of weight reduction grooves are uniformly distributed on the surface of the partition plate;

the weight reduction groove penetrates through the partition plate along the thickness direction of the partition plate.

Further, the fireproof heat insulation layer covers all the weight reduction grooves in the partition plate to block the communication between the first accommodating cavity and the second accommodating cavity.

Furthermore, two explosion-proof valves are arranged on the box body;

each explosion-proof valve is matched with the containing cavity on the corresponding side so as to release the pressure in the corresponding containing cavity through the explosion-proof valve.

In the technical scheme, the utility model provides a pair of battery package structure has following beneficial effect:

the utility model discloses a battery package structure is cut apart two through the baffle and is held the chamber to two passageways that utilize the box top to set up realize the electricity with BDU and be connected, need not realize the electrical connection of two group batteries through trompil on the baffle, thereby when avoiding one side group battery to be on fire the intensity of a fire to stretch to one side in addition, the security is better.

The utility model discloses a set up the first chamber that holds of a plurality of intercommunications and the second subtracts the heavy groove that holds the chamber on the baffle of battery package structure, fire prevention insulating layer covers all heavy grooves, when satisfying the lightweight, blocks first chamber and the second of holding and holds and transfer heat through subtracting the heavy groove between the chamber.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.

Fig. 1 is a schematic structural diagram of a battery pack structure according to an embodiment of the present invention;

fig. 2 is an electrical connection schematic diagram of a battery pack structure according to an embodiment of the present invention.

Description of the reference numerals:

1. a box body; 2. a partition plate; 3. a battery pack; 4. BDU; 5. an explosion-proof valve; 6. a fireproof heat-insulating layer; 7. a channel;

101. a first cover; 102. a second cover;

301. a battery module is provided.

Detailed Description

In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.

See fig. 1-2;

a battery package structure of this embodiment, this battery package structure includes:

the box body 1 is internally and hollowly formed into a containing cavity, and two ends of the box body 1 are of an open structure;

the partition plate 2 is arranged in the box body 1, and the accommodating cavities are a first accommodating cavity and a second accommodating cavity which are separated from each other through the partition plate 2;

the battery packs 3 are respectively arranged in the first accommodating cavity and the second accommodating cavity; and

a first cover 101 with an open structure and fastened in the first accommodating cavity and a second cover 102 with an open structure and fastened in the second accommodating cavity;

the top of the box body 1 is provided with two channels 7, and each channel 7 is communicated with the accommodating cavity on one corresponding side; and

the BDU4 is integrated at the top of the box body 1 and seals the two channels 7;

the battery packs 3 are electrically connected to the BDU4 through the channels 7 on the respective sides to enable electrical connection between the two battery packs 3 through the BDU 4.

Specifically, this embodiment discloses a novel battery package structure, and it includes box 1, installs baffle 2 in box 1, and box 1 is inside to be cut apart into the first chamber and the second chamber that holds of symmetry through this baffle 2, and two group battery 3 install respectively and hold the intracavity at first chamber and the second of holding to utilize first case lid 101 and second case lid 102 to seal the open structure who corresponds one side respectively. In order to ensure the electrical connection of the battery packs 3 and avoid the safety problem of the prior art of opening the partition board 2, two channels 7 are formed on the top of the box body 1, each channel 7 is communicated with the accommodating cavity on the corresponding side, the two channels 7 are sealed by the BDU4, the battery packs 3 are electrically connected with the BDU4 through the channels 7 on the corresponding sides so as to realize the series connection between the two battery packs 3 through the BDU4,

the fire spread from one another can be blocked by the partition 2.

Preferably, a fireproof heat insulation layer is arranged between the partition board 2 and the battery pack 3 on one side;

the fireproof heat insulation layer 6 is used for blocking heat transfer of the first accommodating cavity and the second accommodating cavity.

In order to further improve the heat insulation effect, the present embodiment may provide a fireproof heat insulation layer 6 on one side of the partition board 2 to reduce the heat conduction effect between the first accommodating cavity and the second accommodating cavity.

In addition, in consideration of the requirement of light weight design, a plurality of weight reduction grooves are uniformly distributed on the surface of the partition plate 2;

the lightening grooves penetrate the partition plate 2 in the thickness direction of the partition plate 2.

In order to reduce the heat conduction effect between the first accommodating cavity and the second accommodating cavity and avoid the spread of fire through the partition board 2, the fireproof heat insulation layer 6 of the embodiment covers all the weight reduction grooves on the partition board 2 to block the communication between the first accommodating cavity and the second accommodating cavity.

Preferably, the tank body 1 of the embodiment is provided with two explosion-proof valves 5;

each explosion-proof valve 5 is matched with the accommodating cavity on the corresponding side so as to release the pressure in the corresponding accommodating cavity through the explosion-proof valve 5.

Explosion-proof valve 5 and the chamber intercommunication that holds that corresponds one side to through explosion-proof valve 5 under the preset pressure condition, open the corresponding pressure that holds the chamber of release, improve the security.

the utility model discloses a battery package structure is cut apart two through baffle 2 and is held the chamber to two passageways 7 that utilize 1 top of box to set up realize the electricity with BDU4 and be connected, need not realize the electrical connection of two group battery 3 through trompil on the baffle 2, thereby the intensity of a fire stretches to one side in addition when avoiding one side group battery 3 to catch fire, and the security is better.

The utility model discloses a set up the first chamber that holds of a plurality of intercommunications and the second subtracts the heavy groove that holds the chamber on baffle 2 of battery package structure, fire prevention insulating layer 6 covers all and subtracts the heavy groove, when satisfying the lightweight, blocks that first chamber and the second that holds and hold and transfer heat through subtracting the heavy groove between the chamber.

Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.

Claims

1. Battery package structure, this battery package structure includes:

the refrigerator comprises a refrigerator body (1), wherein an accommodating cavity is formed in the refrigerator body (1) in a hollow mode, and two ends of the refrigerator body (1) are of an open structure;

the partition plate (2) is arranged in the box body (1), and the accommodating cavities are a first accommodating cavity and a second accommodating cavity which are separated from each other through the partition plate (2);

battery packs (3) respectively mounted in the first and second accommodating chambers; and

a first cover (101) fastened to the open structure of the first accommodating cavity and a second cover (102) fastened to the open structure of the second accommodating cavity;

the method is characterized in that:

two channels (7) are formed in the top of the box body (1), and each channel (7) is communicated with the accommodating cavity on one corresponding side; and

a BDU (4) integrated on the top of the box body (1) and closing the two channels (7);

the battery packs (3) are electrically connected with the BDU (4) through the channels (7) on the corresponding side, so that the two battery packs (3) are electrically connected through the BDU (4).

2. The battery pack structure according to claim 1, wherein a fireproof heat insulating layer (6) is provided between the partition plate (2) and the battery pack (3) on one side thereof;

the fireproof heat insulation layer (6) is used for blocking heat transfer of the first accommodating cavity and the second accommodating cavity.

3. The battery pack structure according to claim 2, wherein a plurality of weight-reducing grooves are uniformly distributed on the surface of the separator (2);

the weight reduction groove penetrates through the partition plate (2) along the thickness direction of the partition plate (2).

4. The battery pack structure according to claim 3, wherein the fireproof thermal insulation layer (6) covers all the lightening grooves on the partition plate (2) to block the communication of the first accommodation chamber and the second accommodation chamber.

5. The battery pack structure according to claim 1, wherein two explosion-proof valves (5) are mounted on the case (1);

each explosion-proof valve (5) is matched with the containing cavity on the corresponding side so as to release the pressure in the corresponding containing cavity through the explosion-proof valve (5).