CN106887548B - A kind of batteries of electric automobile packet safeguard structure - Google Patents

A kind of batteries of electric automobile packet safeguard structure Download PDF

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Publication number
CN106887548B
CN106887548B CN201710150112.9A CN201710150112A CN106887548B CN 106887548 B CN106887548 B CN 106887548B CN 201710150112 A CN201710150112 A CN 201710150112A CN 106887548 B CN106887548 B CN 106887548B
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China
Prior art keywords
battery pack
bottom plate
support component
close
safeguard structure
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CN201710150112.9A
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Chinese (zh)
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CN106887548A (en
Inventor
史方圆
李洁
陈贤青
禹慧丽
崔泰松
赵会
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Deep Blue Automotive Technology Co ltd
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Chongqing Changan New Energy Automobile Technology Co Ltd
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    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01MPROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
    • H01M50/00Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
    • H01M50/20Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Electrochemistry (AREA)
  • General Chemical & Material Sciences (AREA)
  • Battery Mounting, Suspending (AREA)

Abstract

The present invention relates to a kind of batteries of electric automobile packet safeguard structures, including the safeguard structure ontology being located on automobile chassis, the battery pack being located on safeguard structure ontology, it is characterized in that: safeguard structure ontology includes bottom plate, longitudinal left support component for being located at bottom plate close to left side position, longitudinal right support component for being located at bottom plate close to right side portion, the lateral guard member being located in the middle part of bottom plate, the battery pack fixing component connecting with the upper surface of left support component and right support component, battery pack is fixedly connected with the top surface of battery pack fixing component;Guard member is located at the lower section of battery pack fixing component, and corresponding with the bottom surface of battery pack.It can play triple protection to battery pack;Buffer function effectively can be played to invader, prevent the phenomenon of positive and negative pole material short circuit under the battery diaphragm state of rupture of battery pack, avoided the phenomenon on fire caused due to positive and negative anodes short circuit inside battery pack, improve the security performance of electric car;It is easy for installation, occupy little space.

Description

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.

Claims (5)

1. a kind of batteries of electric automobile packet safeguard structure, including be located on automobile chassis safeguard structure ontology, be located at it is described anti- Battery pack (1) on protection structure ontology, it is characterized in that: the safeguard structure ontology includes the bottom plate being located on the automobile chassis (2), longitudinal left support component (3) for being located at the bottom plate (2) close left side position, longitudinal the be located at bottom plate (2) are close to right The right support component (4) of edge position, guard member (5) and the left support component being laterally located in the middle part of the bottom plate (2) (3) the battery pack fixing component (6) connected with the upper surface of right support component (4), the battery pack (1) and the battery pack are solid The top surface for determining component (6) is fixedly connected;The guard member (5) is located at the lower section of the battery pack fixing component (6), and with institute The bottom surface for stating battery pack (1) is corresponding;The guard member (5) is integrally in " several " character form structure, by metal protection layer (51) and with The insulating protective layer (52) of its upper surface connection is constituted;The top of the metal protection layer (51) and insulating protective layer (52) is in Wavy, the front of metal protection layer (51) connect with the bottom plate (2) close to position in front, rear portion and the bottom plate (2) Position close to back connects.
2. batteries of electric automobile packet safeguard structure according to claim 1, it is characterized in that: the left support component (3) and Right support component (4) is integrally in " several " character form structure, and the left part of the left support component (3) and the left side of the bottom plate (2) connect Connect, right part and the bottom plate (2) are connect close to the position on left side, left part and the bottom plate (2) of the right support component (4) lean on The position connection on nearly the right, right part are connect with the right of the bottom plate (2).
3. batteries of electric automobile packet safeguard structure according to claim 2, it is characterized in that: the battery pack fixing component (6) whole is in " several " font, and left part connect with the upper surface of the left support component (3), right part and the right support component (4) upper surface connection;The upper end of the battery pack fixing component (6) be equipped with rectangular opening, four of battery pack (1) bottom surface Corner is fixedly connected on the battery pack fixing component (6) in the four corners of rectangular opening respectively.
4. batteries of electric automobile packet safeguard structure according to claim 1, it is characterized in that: the insulating protective layer (52) is logical Cross the upper surface that adhesive (53) is fixed on the metal protection layer (51).
5. batteries of electric automobile packet safeguard structure according to claim 3, it is characterized in that: the left support component (3) welds The position in the bottom plate (2) close to the left side is connect, the right support component (4) is welded on the bottom plate (2) close to right side portion; The front of the metal protection layer (51) is welded on the bottom plate (2) and is welded on the bottom plate (2) close to position in front, rear portion Close to the position of back;The left part of the battery pack fixing component (6) is welded on upper surface, the right side of the left support component (3) Portion is welded on the upper surface of the right support component (4).
CN201710150112.9A 2017-03-14 2017-03-14 A kind of batteries of electric automobile packet safeguard structure Active CN106887548B (en)

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Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102017126949A1 (en) * 2017-11-16 2019-05-16 Dr. Ing. H.C. F. Porsche Aktiengesellschaft Battery device for an at least partially electrically operated motor vehicle
JP6665212B2 (en) * 2018-01-30 2020-03-13 本田技研工業株式会社 Body rear structure
CN111301184A (en) * 2020-03-20 2020-06-19 重庆长安汽车股份有限公司 Backplate and electric automobile at bottom of carbon-fibre composite battery
WO2024036542A1 (en) * 2022-08-18 2024-02-22 宁德时代新能源科技股份有限公司 Battery box body, battery and vehicle

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Publication number Priority date Publication date Assignee Title
US9052168B1 (en) * 2013-11-19 2015-06-09 Atieva, Inc. Electric vehicle undercarriage crumple zone
CN106098990A (en) * 2016-07-26 2016-11-09 张淑珍 New forms of energy car
CN205752459U (en) * 2013-11-19 2016-11-30 源捷公司 Battery protection system
CN205800769U (en) * 2016-07-07 2016-12-14 天能集团(河南)能源科技有限公司 A kind of preventer of accumulator of electric car

Patent Citations (4)

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Publication number Priority date Publication date Assignee Title
US9052168B1 (en) * 2013-11-19 2015-06-09 Atieva, Inc. Electric vehicle undercarriage crumple zone
CN205752459U (en) * 2013-11-19 2016-11-30 源捷公司 Battery protection system
CN205800769U (en) * 2016-07-07 2016-12-14 天能集团(河南)能源科技有限公司 A kind of preventer of accumulator of electric car
CN106098990A (en) * 2016-07-26 2016-11-09 张淑珍 New forms of energy car

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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing

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Address after: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing

Patentee after: Deep Blue Automotive Technology Co.,Ltd.

Address before: 401133 room 208, 2 house, 39 Yonghe Road, Yu Zui Town, Jiangbei District, Chongqing

Patentee before: CHONGQING CHANGAN NEW ENERGY AUTOMOBILE TECHNOLOGY Co.,Ltd.

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