CN221961070U - Automobile power battery with flame retardant effect - Google Patents

Abstract

The utility model relates to the technical field of automobile batteries, specifically to an automobile power battery with flame retardant effect, comprising a protection box, a cover plate and a cooling fan group, wherein the protection box and the cover plate are connected to each other by snaps, and the cooling fan group is installed in the cover plate. The automobile power battery with flame retardant effect has a large number of metal tube structures that can absorb the heat generated by the battery arranged around the battery, and is equipped with corresponding heat absorption and heat dissipation devices to discharge the excess heat of the battery, reduce the temperature, and avoid the phenomenon of self-ignition due to excessive temperature. At the same time, multiple flame retardant lines composed of flame retardant plates and flame retardants are arranged to avoid dangerous situations such as combustion and explosion of the battery.

Description

A flame retardant automotive power battery

Technical Field

The utility model relates to the technical field of automobile batteries, in particular to an automobile power battery with a flame retardant effect.

Background Art

When electric vehicles are in use, they need to use car battery packs. The existing car battery packs have the following disadvantages: the existing car battery packs do not have a flame retardant function, which causes the car battery packs to easily overheat when used for a long time, causing the car battery packs to be damaged or even cause combustion, shortening the service life of the car battery packs.

China Patent Network discloses a flame-retardant automotive battery pack CN210200827U. This utility model avoids the hazards caused by spontaneous combustion of the battery by using a flame-retardant plate with a built-in flame retardant to divide the space inside the battery box. However, this method does not reduce the risk of spontaneous combustion of the battery itself and needs to be improved.

Utility Model Content

The purpose of the utility model is to provide an automotive power battery with flame retardant effect, which has multiple flame retardant protection advantages to solve the problems raised in the above background technology.

In order to solve the above technical problems, the utility model provides the following technical solutions: an automotive power battery with flame retardant effect, comprising a protection box, a cover plate and a cooling fan group, the protection box and the cover plate are connected to each other by snaps, and the cooling fan group is installed in the cover plate.

When in use, the heat generated by the battery pack is first absorbed by the heat pipe and transferred to the thermal gel. Under the action of the cooling fan group, the heat is absorbed and discharged. When the battery catches fire due to overtemperature and overload of cooling structures such as the heat pipe, the flame retardant plate can prevent the fire from affecting other battery packs. When the flame retardant plate is damaged, the internal flame retardant overflows and emergency fire extinguishing is carried out.

Preferably, the protective box includes a box body, a heat-conducting tube, a flame-retardant plate, a flame retardant and a battery pack installation area. The box body is a coverless box structure made of insulating and waterproof material. The heat-conducting tube is a bent arch-shaped metal thin tube structure, which is inserted at the bottom of the box body. There are two flame-retardant plates, which are equidistantly installed inside the box body. The flame retardant is filled inside the flame-retardant plate, and the space separated by the flame-retardant plate and the inner wall of the box body is the battery pack installation area.

Preferably, there are several heat-conducting pipes, five in a group, which are fitted on the inner wall of the box and the outer wall of the flame-retardant plate, and the heat-conducting pipes are higher than the box and the flame-retardant plate.

Reduce the working pressure of the protective box and flame retardant board and increase the upper limit of use.

Preferably, the cover plate includes a thermally conductive gel, perforations and a clamping mechanism, the thermally conductive gel is an elastic heat-absorbing material filled inside the cover plate, the perforations are a plurality of rectangular through-hole structures distributed in an array on the thermally conductive gel, and the clamping mechanism is a plurality of snap-fit structures evenly distributed around the periphery of the cover plate.

Preferably, the position and size of the perforations match those of the heat conducting tubes, and each heat conducting tube is provided with a corresponding perforation through which the heat conducting tubes can pass.

The heat of each heat pipe can be absorbed quickly, improving the heat operation efficiency.

Preferably, the cooling fan assembly is embedded in the cover plate, and the bottom is in contact with the thermal conductive gel.

When the cooling fan group is started, the heat adsorbed on the thermal conductive gel can be discharged from the interior of the battery. The thermal conductive gel is attached so that the perforations on the thermal conductive gel can improve the operating efficiency of the cooling fan group.

Compared with the prior art, the utility model provides an automotive power battery with a flame retardant effect, which has the following beneficial effects: the automotive power battery with a flame retardant effect is provided with a large number of metal tube structures that can absorb the heat generated by the battery around the battery, and is equipped with corresponding heat absorption and heat dissipation devices to discharge the excess heat of the battery, reduce the temperature, and avoid spontaneous combustion due to excessive temperature. At the same time, multiple flame retardant defense lines composed of flame retardant plates and flame retardants are provided to avoid dangerous situations such as battery combustion and explosion.

BRIEF DESCRIPTION OF THE DRAWINGS

Figure 1 is a three-dimensional demonstration diagram of the structure of the utility model;

Figure 2 is a three-dimensional half-section view of the structural protection box of the utility model;

FIG. 3 is a three-dimensional demonstration diagram of the structural cover plate of the utility model.

Wherein: 1. protection box; 101. box body; 102. heat pipe; 103. flame retardant plate; 104. flame retardant; 105. battery pack installation area; 2. cover plate; 201. thermal conductive gel; 202. perforation; 203. clamping mechanism; 3. cooling fan group.

DETAILED DESCRIPTION

The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

Please refer to Figures 1-3. The utility model provides a technical solution: an automotive power battery with flame retardant effect, including a protection box 1, a cover plate 2 and a cooling fan group 3. The protection box 1 and the cover plate 2 are connected to each other by buckles, and the cooling fan group 3 is installed in the cover plate 2.

When in use, the heat generated by the battery pack is first absorbed by the heat pipe 102 and transferred to the thermal gel 201. Under the action of the cooling fan group 3, the heat is absorbed and discharged. When the battery catches fire due to overheating and overload of cooling structures such as the heat pipe 102, the flame retardant plate 103 can prevent the fire from affecting other battery packs. When the flame retardant plate 103 is damaged, the internal flame retardant 104 overflows and emergency fire extinguishing is carried out.

Specifically, the protective box 1 includes a box body 101, a heat pipe 102, a flame retardant plate 103, a flame retardant 104 and a battery pack installation area 105. The box body 101 is an uncovered box structure made of insulating and waterproof material. The heat pipe 102 is a bent arch-shaped metal thin tube structure, which is inserted at the bottom of the box body 101. There are two flame retardant plates 103, which are equidistantly installed inside the box body 101. The flame retardant 104 is filled inside the flame retardant plate 103. The space separated by the flame retardant plate 103 and the inner wall of the box body 101 is the battery pack installation area 105.

Specifically, there are several heat pipes 102 , five in a group, which are fitted on the inner wall of the box body 101 and the outer wall of the flame retardant plate 103 . The heat pipes 102 are higher than the box body 101 and the flame retardant plate 103 .

Through the above technical solution, the working pressure of the protection box 1 and the flame retardant plate 103 is reduced, and the upper limit of use is increased.

Specifically, the cover plate 2 includes a thermally conductive gel 201, a perforation 202 and a clamping mechanism 203. The thermally conductive gel 201 is an elastic heat-absorbing material filled inside the cover plate 2. The perforation 202 is a rectangular through-hole structure distributed in a plurality of arrays on the thermally conductive gel 201. The clamping mechanism 203 is a plurality of snap-fit structures evenly distributed around the periphery of the cover plate 2.

Specifically, the position and size of the through-hole 202 match the heat-conducting pipe 102 , and each heat-conducting pipe 102 is provided with a corresponding through-hole 202 through which the heat-conducting pipe 102 can pass.

Through the above technical solution, the heat of each heat pipe 102 can be quickly absorbed, thereby improving the heat operation efficiency.

Specifically, the cooling fan assembly 3 is embedded in the cover plate 2 , and the bottom is in contact with the thermal conductive gel 201 .

Through the above technical solution, when the cooling fan group 3 is started, the heat adsorbed on the thermal conductive gel 201 can be discharged from the inside of the battery. The thermal conductive gel 201 is fitted so that the perforations 202 on the thermal conductive gel 201 can improve the operating efficiency of the cooling fan group 3.

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

Claims (5)

1. An automotive power battery with flame retardant effect, comprising a protection box (1), a cover plate (2) and a cooling fan group (3), characterized in that: the protection box (1) and the cover plate (2) are connected to each other by a buckle, the cooling fan group (3) is installed in the cover plate (2), the protection box (1) comprises a box body (101), a heat pipe (102), a flame retardant plate (103), a flame retardant (104) and a battery pack installation area (105), the The box body (101) is a coverless box structure made of insulating waterproof material. The heat conduction pipe (102) is a bent arch-shaped metal thin tube structure and is inserted at the bottom of the box body (101). There are two flame retardant plates (103) which are equidistantly installed inside the box body (101). The flame retardant (104) is filled inside the flame retardant plate (103). The space separated by the flame retardant plate (103) and the inner wall of the box body (101) is a battery pack installation area (105). 2. An automotive power battery with flame retardant effect according to claim 1, characterized in that: there are several heat pipes (102), five in a group, which are fitted on the inner wall of the box (101) and the outer wall of the flame retardant plate (103), and the heat pipes (102) are higher than the box (101) and the flame retardant plate (103). 3. An automotive power battery with flame retardant effect according to claim 1, characterized in that: the cover plate (2) comprises a thermally conductive gel (201), a perforation (202) and a clamping mechanism (203), the thermally conductive gel (201) is an elastic heat-absorbing material filled inside the cover plate (2), the perforation (202) is a rectangular through-hole structure distributed in a plurality of arrays on the thermally conductive gel (201), and the clamping mechanism (203) is a plurality of buckle structures evenly distributed around the cover plate (2). 4. An automotive power battery with flame retardant effect according to claim 3, characterized in that: the position and size of the through hole (202) match the heat pipe (102), and each heat pipe (102) is provided with a corresponding through hole (202) that can pass through. 5. The automotive power battery with flame retardant effect according to claim 1 is characterized in that: the cooling fan group (3) is embedded and installed inside the cover plate (2), and the bottom is in contact with the thermal conductive gel (201).