A kind of batteries of electric automobile packet safeguard structure
Technical field
The present invention relates to a kind of batteries of electric automobile packet safeguard structures.
Background technique
Electric car has become the staple product in new-energy automobile field, critical component of the battery pack as electric car
One of, security performance directly affects the vehicle security energy of electric car.As more and more electric cars are used,
The accident of battery catches fire after a lot of collisions occurs, the importance of battery pack safeguard structure also highlights.Battery was colliding
It is battery pack when by foreign object invasion procedure that the main reason on fire occurs in journey, and inside battery membrane ruptures cause positive and negative
Short circuit occurs for pole material, and it is on fire to generate temperature rise.Safety of the battery in collision process is promoted, at present there are two types of mode, one
Kind is the extruding for mitigating vehicle structure deformation by the vehicle structure around optimization battery pack to battery pack, such as
" battery pack impact protective structure and automobile " disclosed in CN201510074855.3;One is pass through optimization battery pack internal structure
It is short-circuit to avoid battery from occurring, " a kind of power battery pack safety dress for vehicle as disclosed in CN201510713240.0
Set ", " a kind of batteries of electric automobile packet and protective device with air bag " disclosed in CN201610160488.3,
" a kind of novel battery packet insulation board " disclosed in CN201620022176.1.CN201510713240.0 and
CN201610160488.3 mainly controls airbag expansion by controller, and one layer of sky is formed between battery pack and invader
Chamber prevents contact of the battery with invader;In actual use, when external invader is very sharp, sensor is received
Power or acceleration signal are weaker, are not enough to the signal that trigger controller issues airbag expansion;When trigger controller issues airbag exhibition
When ON signal, gas generator generates bulk gas in moment, while generating a large amount of heat, influences the service life of battery pack.
CN201620022176.1 is to stop the intrusion of bottom structure by arranging high strength composite on battery pack bottom plate.
Above patent document without solving the limit collision situation when, battery diaphragm is broken into after object punctures, inside battery
Positive and negative pole material short circuit problem, therefore battery pack safeguard structure need to be improved.
Summary of the invention
The object of the present invention is to provide a kind of batteries of electric automobile packet safeguard structures, and triple guarantors can be played to battery pack
Shield;Buffer function effectively can be played to invader, prevent positive and negative anodes material under the battery diaphragm state of rupture of battery pack
The phenomenon for expecting short circuit avoids the phenomenon on fire caused due to positive and negative anodes short circuit inside battery pack, improves the safety of electric car
Performance;It is easy for installation, occupy little space.
A kind of batteries of electric automobile packet safeguard structure of the present invention, including the safeguard structure sheet being located on automobile chassis
Body, the battery pack being located on the safeguard structure ontology, it is characterized in that: the safeguard structure ontology includes being located at the automobile bottom
Bottom plate, longitudinal direction on disk are located at the bottom plate and are located at the bottom plate close to the right close to the left support component at left side position, longitudinal direction
The right support component at position, guard member and the left support component and the right support component being laterally located in the middle part of the bottom plate
Upper surface connection battery pack fixing component, the battery pack is fixedly connected with the top surface of the battery pack fixing component;Institute
The lower section that guard member is located at the battery pack fixing component is stated, and corresponding with the bottom surface of the battery pack.
Further, the guard member is integrally in " several " character form structure, is connect by metal protection layer and with its upper surface
Insulating protective layer is constituted;The top of the metal protection layer and insulating protective layer is wave-shaped, the front of metal protection layer with
The bottom plate is connected close to position in front, rear portion is connect with the bottom plate close to the position of back.
Further, the left support component and right support component are integrally in " several " character form structure, the left support component
Left part is connect with the left side of the bottom plate, right part is connect with the bottom plate close to the position on the left side, a left side for the right support component
Portion is connect with the bottom plate close to the position on the right, right part is connect with the right of the bottom plate.
Further, the battery pack fixing component is integrally in " several " font, the upper end of left part and the left support component
Face connection, right part are connect with the upper surface of the right support component;The upper end of the battery pack fixing component is equipped with rectangular opening, institute
The four corners for stating battery pack bottom surface are respectively fixedly connected in the four corners in the battery pack fixing component close to rectangular opening.
Further, the insulating protective layer is fixed on the upper surface of the metal protection layer by adhesive.
Further, the left support Member Welding is in the bottom plate close to the position on the left side, the right support Member Welding
In the bottom plate close to right side portion;The front of the metal protection layer is welded on the bottom plate close to position in front, rear portion
The bottom plate is welded on close to the position of back;The left part of the battery pack fixing component is welded on the upper of the left support component
End face, right part are welded on the upper surface of the right support component.
The beneficial technical effect of the present invention:
Due to devising bottom plate and guard member, triple protection can be played to battery pack;Since guard member is by metal
Protective layer and insulating protective layer are constituted, and are designed to wavy, are effectively played buffer function to invader, are prevented electricity
The phenomenon of positive and negative pole material short circuit under the battery diaphragm state of rupture of Chi Bao, avoid due to positive and negative anodes short circuit inside battery pack and
The phenomenon on fire caused, improves the security performance of electric car;It is easy for installation, occupy little space.
Detailed description of the invention
Fig. 1 is structural schematic diagram of the invention;
Fig. 2 is the A-A cross-sectional view of Fig. 1;
Fig. 3 is the portion the B enlarged drawing of Fig. 2;
Fig. 4 invader invades the structural schematic diagram inside battery pack.
In figure: 1- battery pack, 2- bottom plate, 3- left support component, 4- right support component, 5- guard member, 6- battery pack are solid
Determine component, 7- invader;
51- metal protection layer, 52- insulating protective layer, 53- adhesive.
Specific embodiment
It elaborates below in conjunction with drawings and examples to the present invention.
Referring to a kind of batteries of electric automobile packet safeguard structure described in Fig. 1 to Fig. 4, including the protection being located on automobile chassis
Structural body, the battery pack 1 being located on the safeguard structure ontology, it is characterized in that: the safeguard structure ontology includes being located at institute
State the bottom plate 2 on automobile chassis, longitudinal direction is located at the bottom plate 2 and is located at the bottom close to the left support component 3 at left side position, longitudinal direction
Right support component 4, the lateral guard member 5 and the left support structure that are located at bottom plate 2 middle part of the plate 2 close to right side portion
The battery pack fixing component 6 that part 3 is connected with the upper surface of right support component 4, the battery pack 1 and the battery pack fixing component
6 top surface is fixedly connected;The guard member 5 is located at the lower section of the battery pack fixing component 6, and with the battery pack 1
Bottom surface is corresponding.Bottom plate 2 is superhigh intensity metal material, as the first protective layer, can be resisted most of from ground or car body
The shock of malformation;Guard member 5 is second and third protective layer.When automobile collides, invader 7 hits bottom plate first
2, if invader 7 punctures bottom plate 2, then hit with guard member 5.
The whole guard member 5 is in " several " character form structure, by metal protection layer 51 and the insulation connecting with its upper surface
Protective layer 52 is constituted;The top of the metal protection layer 51 and insulating protective layer 52 is wave-shaped, before metal protection layer 51
Portion is connect with the bottom plate 2 close to position in front, rear portion is connect with the bottom plate 2 close to the position of back.Guard member 5 by
Metal protection layer 51 and insulating protective layer 52 are constituted, and metal protection layer 51 is high ductility metal material, are broken into object in bottom plate 2
In the case that 7 puncture, metal protection layer 51 due to can be moved with invader 7 with ductility, occur very large deformation and
It is not punctured, to form barrier together between invader 7 and battery pack 1.Insulating protective layer 52 is high flexibility, high-ductility
Property, insulation and waterproof performance high-performance textile fabric composite material, when impact force is very big, invader 7 and metal protection layer
51 and insulating protective layer 52 hit battery pack 1 together, when battery pack 1 battery diaphragm rupture when, insulating protective layer 52 can rise
To the effect of battery diaphragm, prevent positive and negative pole material short circuit inside battery pack, avoid due to positive and negative anodes short circuit inside battery pack and
The phenomenon on fire caused, improves the security performance of electric car.Metal protection layer 51 and insulating protective layer 52 are designed to wave
Shape is capable of increasing deflection, plays buffer function to invader.
The left support component 3 and right support component 4 are whole in " several " character form structure, the left part of the left support component 3
It is connect with the left side of the bottom plate 2, right part is connect with the bottom plate 2 close to the position on the left side, the left part of the right support component 4
It is connect with the bottom plate 2 close to the position on the right, right part is connect with the right of the bottom plate 2.
The whole battery pack fixing component 6 is in " several " font, the upper surface company of left part and the left support component 3
It connects, right part is connect with the upper surface of the right support component 4;The upper end of the battery pack fixing component 6 is equipped with rectangular opening, described
The four corners of 1 bottom surface of battery pack are respectively fixedly connected in the four corners in the battery pack fixing component 6 close to rectangular opening.
The insulating protective layer 52 is fixed on the upper surface of the metal protection layer 51 by adhesive 53.
The left support component 3 is welded on the bottom plate 2 close to the position on the left side, and the right support component 4 is welded on institute
Bottom plate 2 is stated close to right side portion;The front of the metal protection layer 51 is welded on the bottom plate 2 close to position in front, rear portion
The bottom plate 2 is welded on close to the position of back;The left part of the battery pack fixing component 6 is welded on the left support component 3
Upper surface, right part be welded on the upper surface of the right support component 4.
A shared three-layer protection layer of the invention, bottom plate 2 are the first protective layer, and high-intensitive feature can resist big portion
Divide the shock deformed from ground or body construction;Metal protection layer 51 is the second protective layer, can the characteristics of high ductibility
After the first protective layer is destroyed, invader is kept out;Insulating protective layer 52 be third protective layer, high flexibility, high tenacity,
Insulation and waterproof performance, can play the role of battery diaphragm after the second protective layer punctures battery diaphragm with invader, prevent
Only battery pack short circuit.The present invention can play triple protection to battery pack;Buffer function effectively can be played to invader, prevented
Only there is a phenomenon where positive and negative pole material short circuit under the battery diaphragm state of rupture of battery pack, avoid due to positive and negative anodes inside battery pack
The phenomenon on fire of short circuit and initiation, improves the security performance of electric car;It is easy for installation, occupy little space.