CN212542583U

CN212542583U - Fire-proof and explosion-proof battery box for electric vehicle

Info

Publication number: CN212542583U
Application number: CN202020744816.6U
Authority: CN
Inventors: 钟国维; 李泽满
Original assignee: Huobi Guangzhou Block Chain Technology Co ltd
Current assignee: Huobi Guangzhou Block Chain Technology Co ltd
Priority date: 2020-05-08
Filing date: 2020-05-08
Publication date: 2021-02-12
Anticipated expiration: 2030-05-08

Abstract

The utility model discloses a fire prevention explosion-proof battery case for electric motor car, including battery case body, terminal, fire-retardant layer and inoxidizing coating, battery case body includes fire-retardant shell, vacuum intermediate layer and metal inner shell, and vacuum intermediate layer distributes between fire-retardant shell and metal inner shell, the terminal is installed at the top of battery case body, is equipped with temperature fuse on the terminal, fire-retardant layer distributes on the internal surface of metal inner shell, the inoxidizing coating distributes on the internal surface on fire-retardant layer, this fire prevention explosion-proof battery case for electric motor car, and fire prevention explosion-proof ability is good, and the safety in utilization is good.

Description

Fire-proof and explosion-proof battery box for electric vehicle

Technical Field

The utility model relates to an electric motor car management technical field specifically is a fire prevention and explosion prevention battery case for electric motor car.

Background

The electric motor car is because its environmental protection, it is convenient, a great deal of advantages such as low price, market share rises year by year, become the best choice of the instrument of riding instead of walk of going on a journey, along with the increase of market share, because electric motor car design defect, take place when leading to the incident, and be in the trend of rising, the battery is as the electric energy conversion device of electric motor car, the condition that the battery explodes on fire can appear in probability when charging, in case take place the spontaneous combustion thing on fire, can cause loss of property, current electric motor car battery case does not possess fire prevention explosion-proof ability, use safety is poor.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to overcome current defect, provide a fire prevention and explosion protection battery case for electric motor car, fire prevention and explosion protection ability is good, and the safety in utilization is good, can effectively solve the problem in the background art.

In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides an explosion-proof battery case of fire prevention for electric motor car, includes battery case body, terminal, fire-retardant layer and inoxidizing coating, battery case body includes fire-retardant shell, vacuum intermediate layer and metal inner shell, and vacuum intermediate layer distributes between fire-retardant shell and metal inner shell, the terminal is installed at the top of battery case body, is equipped with temperature fuse on the terminal, fire-retardant layer distributes on the internal surface of metal inner shell, the inoxidizing coating distributes on the internal surface on fire-retardant layer.

The vacuum interlayer is used for isolating an oxygen environment required by combustion so as to perform vacuum flame retardance, and when the current or the temperature of the circuit, the surface of a part and the system is too high, the temperature fuse bounces off or is blown, so that the battery is prevented from being burnt along a wire after a fire is started, and the safety is good.

Furthermore, the flame-retardant outer shell is an ABS shell, the metal inner shell is an aluminum alloy shell, and the ABS has high impact resistance, high heat resistance and flame retardant capability.

Further, still include buffer spring, buffer spring distributes in the vacuum interlayer, and buffer spring's one end and fire-retardant shell are connected, and buffer spring's the other end and metal inner shell fixed connection, buffer spring are used for increasing the shock-absorbing capacity between fire-retardant shell and the metal inner shell, avoid the metal inner shell inside to receive violent striking and blast.

Further, still include the heat conduction piece, the heat conduction piece is fixed on fire-retardant shell, and the inboard and buffer spring fixed connection of heat conduction piece, the heat conduction piece is used for leading the inside heat of vacuum interlayer to the external world, avoids battery high temperature impaired.

The heat-conducting block is characterized by further comprising two groups of radiators, wherein one group of radiators is fixed on the outer end part of the heat-conducting block, the other group of radiators is fixed on the inner end part of the heat-conducting block and distributed in the vacuum interlayer, the radiators in the heat-conducting block are used for increasing the heat conduction capacity of the heat-conducting block, and the radiators outside the heat-conducting block are used for increasing the heat diffusion capacity.

Furthermore, the flame-retardant layer comprises flame-retardant fireproof cloth and an explosion-proof membrane, the flame-retardant fireproof cloth is adhered to the inner surface of the metal inner shell, the explosion-proof membrane is attached to the surface of the flame-retardant fireproof cloth, the flame-retardant fireproof cloth is glass fiber cloth, the glass fiber cloth is used at the low temperature of 196 ℃ below zero and the high temperature of 300 ℃, and has weather resistance, chemical corrosion resistance, strong acid resistance, strong alkali resistance, aqua regia resistance and various organic solvents resistance, and the explosion-proof membrane has strong toughness, so that the explosion-proof capacity of the battery box body is ensured.

Further, the inoxidizing coating includes that PET basic unit, PET leave type membrane and adhesive layer, and PET leaves the type membrane bonding on PET basic unit, PET leaves the type membrane and passes through the adhesive layer bonding on the rupture membrane, and the adhesive layer is the acrylic ester adhesive layer, and PET basic unit and PET leave the type membrane and be used for further increasing the toughness of rupture membrane, and the adhesive layer tightly glues together broken piece, and the piece when avoiding blasting causes the secondary injury to the user.

Compared with the prior art, the beneficial effects of the utility model are that: this fire prevention explosion-proof battery case for electric motor car has following benefit:

1. when the current on the surface of the circuit, the parts and the system is too large or the temperature is too high, the temperature fuse bounces off or is blown, the battery is prevented from being burnt to the battery along the wire after the fire is started, and the safety is good.

2. The vacuum interlayer is used for isolating an oxygen environment required by combustion so as to perform vacuum flame retardance, the flame-retardant shell is an ABS shell, and the ABS has high impact resistance, high heat resistance and flame retardance.

3. The buffer spring is used for increasing the shock absorption capacity between the flame-retardant outer shell and the metal inner shell and avoiding explosion caused by violent impact on the inside of the metal inner shell.

4. The heat conduction piece is used for leading the heat inside the vacuum interlayer to the outside, the high temperature damage of the battery is avoided, the radiator inside the heat conduction piece is used for increasing the heat conduction capability of the heat conduction piece, and the radiator outside the heat conduction piece is used for increasing the heat diffusion capability.

5. The flame-retardant fireproof cloth is glass fiber cloth which is used at the low temperature of-196 ℃ and the high temperature of 300 ℃, has weather resistance and chemical corrosion resistance, can resist corrosion of strong acid, strong alkali, aqua regia and various organic solvents, and has strong toughness, thereby ensuring the explosion-proof capability of the battery box body.

6. PET basic unit and PET are used for further increasing the toughness of rupture membrane from the type membrane, and the adhesive layer tightly glues broken piece together, and the piece when avoiding blasting causes the secondary damage to the user.

Drawings

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

FIG. 2 is a first cross-sectional view of the structure of the present invention;

fig. 3 is a second cross-sectional view of the structure of the present invention.

In the figure: the battery box comprises a battery box body 1, a flame-retardant outer shell 101, a vacuum interlayer 102, a metal inner shell 103, a temperature fuse 2, a binding post 3, a heat radiator 4, a heat conducting block 5, a buffer spring 6, a flame-retardant layer 7, flame-retardant fireproof cloth 71, an explosion-proof film 72, a protective layer 8, a PET base layer 81, a PET release film 82 and an adhesive 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.

Referring to fig. 1-3, the present invention provides a technical solution:

the first embodiment is as follows: the utility model provides an explosion-proof battery case of fire prevention for electric motor car, including battery case body 1, terminal 3, fire-retardant layer 7 and inoxidizing coating 8, battery case body 1 includes fire-retardant shell 101, vacuum intermediate layer 102 and metal inner shell 103, vacuum intermediate layer 102 distributes between fire-retardant shell 101 and metal inner shell 103, vacuum intermediate layer 102 is used for the required oxygen environment of isolated combustion, thereby carry out the vacuum fire-retardant, terminal 3 installs the top at battery case body 1, be equipped with temperature fuse 2 on terminal 3, when the circuit, the spare part surface, the system is because the electric current is too big or when the temperature is too high, temperature fuse 2 pops open or blows, prevent to burn to the battery along the electric wire after catching a fire, the security is good, fire-retardant layer 7 distributes on the internal surface of metal inner shell 103, inoxidizing coating 8 distributes on.

The flame-retardant outer shell 101 is an ABS shell, the ABS has high impact resistance, high heat resistance and flame retardant capability, and the metal inner shell 103 is an aluminum alloy shell.

The second embodiment is as follows:

the difference between this embodiment and the first embodiment is:

in this embodiment, still include buffer spring 6, buffer spring 6 distributes in vacuum intermediate layer 102, and buffer spring 6's one end is connected with fire-retardant shell 101, and buffer spring 6's the other end and metal inner shell 103 fixed connection, and buffer spring 6 is used for increasing the shock-absorbing capacity between fire-retardant shell 101 and the metal inner shell 103, avoids the inside violent striking that receives of metal inner shell 103 to blast.

Still include heat conduction piece 5, heat conduction piece 5 is fixed on fire-retardant shell 101, and heat conduction piece 5's inboard and buffer spring 6 fixed connection, heat conduction piece 5 are used for the heat direction external world inside vacuum interlayer 102, avoid battery high temperature impaired.

The vacuum heat-conducting vacuum heat.

The third implementation:

the difference between this embodiment and the first embodiment is:

in the embodiment, the flame-retardant layer 7 comprises a flame-retardant fireproof cloth 71 and an explosion-proof membrane 72, the flame-retardant fireproof cloth 71 is adhered to the inner surface of the metal inner shell 103, the explosion-proof membrane 72 is attached to the surface of the flame-retardant fireproof cloth 71, the flame-retardant fireproof cloth 71 is glass fiber cloth, the glass fiber cloth is used at the low temperature of-196 ℃ and the high temperature of 300 ℃, and has weather resistance, chemical corrosion resistance, strong acid, strong alkali, aqua regia and various organic solvents, and the explosion-proof membrane 72 has very strong toughness, so that the explosion-proof capability of the battery box body 1 is ensured.

The protective layer 8 comprises a PET base layer 81, PET release film 82 and an adhesive layer 83, the PET release film 82 is bonded on the PET base layer 81, the PET release film 82 is bonded on the explosion-proof film 72 through the adhesive layer 83, the adhesive layer 83 is an acrylate adhesive layer, the PET base layer 81 and the PET release film 82 are used for further increasing the toughness of the explosion-proof film 72, the adhesive layer 83 tightly bonds broken fragments together, and secondary damage to a user caused by the fragments during explosion is avoided.

When in use: the vacuum interlayer 102 is used for isolating an oxygen environment required by combustion so as to perform vacuum flame retardance, the flame-retardant shell 101 is an ABS shell, the ABS has high impact resistance, high heat resistance and flame retardance, and when the current is too large or the temperature is too high on the surfaces of circuits, parts and systems, the temperature fuse 2 bounces or is blown off to prevent the batteries from being burnt along wires after ignition; the buffer spring 6 is used for increasing the shock absorption capacity between the flame-retardant outer shell 101 and the metal inner shell 103, avoiding explosion caused by violent impact inside the metal inner shell 103, the heat conducting block 5 is used for guiding heat inside the vacuum interlayer 102 to the outside, avoiding high-temperature damage of the battery, the radiator 4 inside the heat conducting block 5 is used for increasing the heat conduction capacity of the heat conducting block 5, the radiator 4 outside the heat conducting block 5 is used for increasing the heat diffusion capacity, the glass fiber cloth is used at the temperature of-196 ℃ and the temperature of 300 ℃, has weather resistance and chemical corrosion resistance, can resist corrosion of strong acid, strong alkali, aqua regia and various organic solvents, and the explosion-proof membrane 72 has strong toughness, thereby guarantee battery case body 1's explosion-proof ability, PET basic unit 81 and PET are from type membrane 82 and are used for further increasing the toughness of rupture membrane 72, and adhesive layer 83 tightly glues together broken piece, and the piece when avoiding blasting causes the secondary damage to the user.

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 an explosion-proof battery case of fire prevention for electric motor car which characterized in that: including battery case body (1), terminal (3), fire-retardant layer (7) and inoxidizing coating (8), battery case body (1) is including fire-retardant shell (101), vacuum intermediate layer (102) and metal inner shell (103), and vacuum intermediate layer (102) distribute between fire-retardant shell (101) and metal inner shell (103), install at the top of battery case body (1) terminal (3), are equipped with temperature fuse (2) on terminal (3), fire-retardant layer (7) distribute on the internal surface of metal inner shell (103), inoxidizing coating (8) distribute on the internal surface of fire-retardant layer (7).

2. The fire-proof and explosion-proof battery box for the electric vehicle as claimed in claim 1, wherein: the flame-retardant outer shell (101) is an ABS shell, and the metal inner shell (103) is an aluminum alloy shell.

3. The fire-proof and explosion-proof battery box for the electric vehicle as claimed in claim 1, wherein: the vacuum interlayer is characterized by further comprising buffer springs (6), the buffer springs (6) are distributed in the vacuum interlayer (102), one ends of the buffer springs (6) are connected with the flame-retardant outer shell (101), and the other ends of the buffer springs (6) are fixedly connected with the metal inner shell (103).

4. The fire-proof and explosion-proof battery box for the electric vehicle as claimed in claim 3, wherein: the flame-retardant plastic composite material is characterized by further comprising a heat-conducting block (5), wherein the heat-conducting block (5) is fixed on the flame-retardant shell (101), and the inner side of the heat-conducting block (5) is fixedly connected with the buffer spring (6).

5. The fire-proof and explosion-proof battery box for the electric vehicle as claimed in claim 4, wherein: the vacuum heat-conducting plate further comprises two groups of radiators (4), wherein one group of radiators (4) is fixed on the outer end part of the heat-conducting block (5), and the other group of radiators (4) is fixed on the inner end part of the heat-conducting block (5) and distributed in the vacuum interlayer (102).

6. The fire-proof and explosion-proof battery box for the electric vehicle as claimed in claim 1, wherein: the flame-retardant layer (7) comprises flame-retardant fireproof cloth (71) and an explosion-proof film (72), the flame-retardant fireproof cloth (71) is adhered to the inner surface of the metal inner shell (103), the explosion-proof film (72) is adhered to the surface of the flame-retardant fireproof cloth (71), and the flame-retardant fireproof cloth (71) is glass fiber cloth.

7. The fire-proof and explosion-proof battery box for the electric vehicle as claimed in claim 6, wherein: the protective layer (8) comprises a PET base layer (81), a PET release film (82) and an adhesive layer (83), the PET release film (82) is bonded on the PET base layer (81), the PET release film (82) is bonded on the explosion-proof film (72) through the adhesive layer (83), and the adhesive layer (83) is an acrylate adhesive layer.