CN210186278U

CN210186278U - Flame-proof battery box

Info

Publication number: CN210186278U
Application number: CN201920720109.0U
Authority: CN
Inventors: Junyang Lin; 林君阳
Original assignee: Individual
Current assignee: Xinye Yipin Electronic Technology Co ltd
Priority date: 2019-05-20
Filing date: 2019-05-20
Publication date: 2020-03-27
Anticipated expiration: 2029-05-20

Abstract

The utility model relates to a battery box technical field specifically is a fire-retardant battery box, its simple structure, reasonable in design, practical meaning and spreading value have, expect to produce good economic benefits, including case lid and box, be equipped with positive terminal and negative terminal on the case lid, the case lid is installed on the box top, the box is equipped with the intermediate layer, the box surface is equipped with a plurality of bleeder vents, be equipped with the filling sponge layer in the intermediate layer, still be equipped with a plurality of extinguishing device in the intermediate layer disorderly, extinguishing device includes low melting metal casing, sodium bicarbonate liquid layer and aluminium sulfate liquid layer fill in low melting metal casing, sodium bicarbonate liquid layer and aluminium sulfate liquid layer contactless.

Description

Flame-proof battery box

Technical Field

The utility model relates to a battery box technical field specifically is a fire-proof battery box.

Background

With the improvement of environmental awareness, the market share of the electric vehicle is higher and higher, the battery pack is the core of the electric vehicle, and generally comprises a battery pack and a battery box, wherein the battery pack is formed by connecting a plurality of battery monomers in series and in parallel, and the battery box is used for accommodating the battery pack; the first bottom wall, the second bottom wall and the side wall are surrounded to form an accommodating cavity for accommodating the battery pack; a plurality of through heat dissipation holes are formed in the first bottom wall; the first bottom wall is also provided with a positive electrode connector, a negative electrode connector and a communication connector; be equipped with a extinguishing device on the lateral wall, be equipped with the generator in the extinguishing device just still fill in the extinguishing device and have fire extinguishing materials, this technical scheme avoids battery short circuit, spontaneous combustion through complicated structure, and manufacturing cost is high to be unfavorable for promoting, if consequently improve this technical scheme, develops a simple structure, low in manufacturing cost's fire prevention battery box will have positive meaning.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a fire-proof battery box to solve the problem mentioned in the background art.

In order to achieve the purpose, the utility model provides a following technical scheme, including case lid and box, be equipped with positive terminal and negative terminal on the case lid, the case lid install in the box top, the box is equipped with the intermediate layer, the box surface is equipped with a plurality of bleeder vents, be equipped with the filling sponge layer in the intermediate layer, still be equipped with a plurality of extinguishing device in the intermediate layer unordered, extinguishing device includes low melting metal casing, sodium bicarbonate liquid layer and aluminium sulfate liquid layer, the sodium bicarbonate liquid layer with aluminium sulfate liquid layer fill in the low melting metal casing, the sodium bicarbonate liquid layer with aluminium sulfate liquid layer contactless.

Preferably, the low-melting-point metal shell is a bismuth-lead-tin-chromium alloy shell, and the melting point is 70-80 ℃.

Preferably, the filling sponge layer is a polyurethane fireproof sponge layer.

From the above description of the structure of the present invention, compared with the prior art, the present invention has the following advantages:

the utility model provides a pair of fire-proof battery box, when the battery is overheated or spontaneous combustion, low melting point metal casing melts, and sodium bicarbonate liquid layer and aluminium sulfate liquid layer contact reaction each other this moment produce a large amount of carbon dioxide foams, and the carbon dioxide foam is gushed out from the bleeder vent and is covered box, case lid surface, and the carbon dioxide foam avoids high temperature to cause destruction through endothermic evaporation on the one hand, and secondly the carbon dioxide foam can form the partition layer, and is isolated with battery and oxygen, restraines the battery and fires.

The utility model discloses simple structure, reasonable in design has practical meaning and spreading value, expects to produce good economic benefits.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification. In the drawings:

FIG. 1 is a perspective view of the present invention;

FIG. 2 is a cross-sectional view of the case;

FIG. 3 is a cross-sectional view (partial) of the box;

FIG. 4 is a schematic view of the fire extinguishing apparatus;

in the figure: the fire extinguishing box comprises a box cover 1, a box body 2, a positive terminal 3, a negative terminal 4, an interlayer 5, air holes 6, a filling sponge layer 7, a fire extinguishing device 8, a low-melting-point metal shell 81, a sodium bicarbonate liquid layer 82 and an aluminum sulfate liquid layer 83.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Examples

Combine fig. 1-4, a prevent burning battery box, including case lid 1 and box 2, be equipped with positive terminal 3 and negative terminal 4 on the case lid 1, case lid 1 install in 2 tops of box, box 2 is equipped with

intermediate layer

5, 2 surfaces of box are equipped with a plurality of bleeder vents 6, be equipped with filling sponge layer 7 in the intermediate layer 5, still be equipped with a plurality of extinguishing device 8 in the intermediate layer 5 unordered, extinguishing device 8 includes low melting point metal casing 81, sodium bicarbonate liquid layer 82 and aluminum sulfate liquid layer 83, sodium bicarbonate liquid layer 82 with aluminum sulfate liquid layer 83 fills in the low melting point metal casing 81, sodium bicarbonate liquid layer 82 with aluminum sulfate liquid layer 83 contactless.

The filling sponge layer 7 is a polyurethane fireproof sponge layer and has the effects of flame retardance, static resistance and shock absorption; the low-melting-point metal shell 81 is a shell made of bismuth-lead-tin-chromium alloy, and the melting point is 70-80 ℃.

The utility model discloses the theory of operation: when the battery is overheated or spontaneously combusted, the low-melting-point metal shell 81 is melted, the sodium bicarbonate liquid layer 82 and the aluminum sulfate liquid layer 83 are in contact reaction with each other at the moment, a large amount of carbon dioxide foam is generated, the carbon dioxide foam is gushed out from the air holes 6 to cover the surface of the box body 2 and the box cover 1, the carbon dioxide foam can avoid high temperature damage through endothermic evaporation on the one hand, and then the carbon dioxide foam can form a partition layer to isolate the battery from oxygen and inhibit the battery from firing.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. The utility model provides a fire-retardant battery box, case lid (1) and box (2), be equipped with positive terminal (3) and negative terminal (4) on case lid (1), case lid (1) install in box (2) top, its characterized in that:

the utility model discloses a fire extinguishing device, including box (2), aluminium sulfate liquid layer (83), sodium bicarbonate liquid layer (82), aluminium sulfate liquid layer (83), box (2) are equipped with intermediate layer (5), box (2) surface is equipped with a plurality of bleeder vents (6), be equipped with in intermediate layer (5) and fill sponge layer (7), still be equipped with a plurality of extinguishing device (8) in intermediate layer (5) unordered, extinguishing device (8) include low melting metal casing (81), sodium bicarbonate liquid layer (82) and aluminium sulfate liquid layer (83), sodium bicarbonate liquid layer (82) with aluminium sulfate liquid layer (83) contactless.

2. A fuel-resistant battery box as defined in claim 1, characterized in that: the low-melting-point metal shell (81) is a bismuth-lead-tin-chromium alloy shell, and the melting point is 70-80 ℃.

3. A fuel-resistant battery box as defined in claim 1, characterized in that: the filling sponge layer (7) is a polyurethane fireproof sponge layer.