CN105336897B - A kind of electric passenger vehicle power battery box - Google Patents
A kind of electric passenger vehicle power battery box Download PDFInfo
- Publication number
- CN105336897B CN105336897B CN201510812068.4A CN201510812068A CN105336897B CN 105336897 B CN105336897 B CN 105336897B CN 201510812068 A CN201510812068 A CN 201510812068A CN 105336897 B CN105336897 B CN 105336897B
- Authority
- CN
- China
- Prior art keywords
- lower box
- battery
- trough girder
- battery bracket
- bottom wall
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
- H01M50/233—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions
- H01M50/24—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders characterised by physical properties of casings or racks, e.g. dimensions adapted for protecting batteries from their environment, e.g. from corrosion
-
- Y—GENERAL 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
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The present invention relates to technical field of new energy, provide a kind of electric passenger vehicle power battery box, lower box including carbon fibre materials and battery bracket, battery bracket includes cross-distribution and downward opening trough girder, the aperture position distribution that trough girder is corresponded on lower box bottom wall is fluted, groove is adapted with the opening size of trough girder, and trough girder is closed to form closed cavity with lower box bottom wall.The electric passenger vehicle power battery box of the present invention uses carbon fiber, and concave structure in correspondence with each other is provided on lower box and battery bracket, to which battery bracket is closed to form hollow whole cavity body structure with lower box, while improving battery case overall stiffness, intensity, mitigate the weight of battery case, realizes vehicle lightweight.In addition, the battery case of the carbon fibre materials has the characteristics such as insulation, fire-retardant, to which the safety of vehicle can be improved.Furthermore the battery case of the entirety cavity body structure be more convenient for assembly and mass production, to improve homogeneity of product.
Description
Technical field
The present invention relates to technical field of new energy more particularly to a kind of electric passenger vehicle power battery boxes.
Background technology
Power battery is the sole power energy source of current electric vehicle, is an important factor for influencing electric vehicle performance
One of.The safety of battery pack directly influences the safety of vehicle, and carrier of the Battery case as battery pack pacifies battery pack
Full work and protection play key effect.Battery case designs, and needs to fully consider various factors.In electric vehicle,
Because space is limited, Battery case should be packed into the battery of more electricity, again with vehicle perfect matching, so being set to Battery case
Meter requires can higher.
Power battery of electric vehicle case mostly uses engineering plastics both at home and abroad at present and steel band 1012 is fastenedly connected, and installation form is such as
Shown in Fig. 1, battery bracket 101 passes through 1012 groups crisscross of steel band by lifting lug 1011a four big, lifting lug 1011b three small
At lifting lug 1011 welds together with steel band 1012, two pieces of bearing units is formed, as shown in Fig. 2, 24 on lifting lug 1011
Fastener 1013, on the one hand fixed battery module, on the one hand passes through the lower box 102 of plastic battery case, and under lifting lug 1011
The welded nut in face fastens, and battery module, plastic battery case lower box 102 and 1011 three of lifting lug can be made to be connected to one in this way
It rises, the weight of battery module can be decomposed by these fasteners 1013 on lifting lug 1011.23 M14 welding cylinder welderings
It is connected on the back side of lifting lug 1011, steel band 1012 is contacted with 1011 face of lifting lug and integral solder is at the back side of lifting lug 1011.This kind point
101 overall construction intensity of power battery bracket from structure is bad, battery system is protected it is inadequate, and integral solder structure compared with
More, batch production consistency is poor；Simultaneously because engineering plastics battery case is exposed, easily it is pierced, it is difficult to ensure cell safety；In addition, by
In the middle high-strength steel sheet of widely used B340VK, it is unfavorable for vehicle lightweight.
Invention content
(1) technical problems to be solved
It is higher just in guarantee the technical problem to be solved in the present invention is to provide a kind of electric passenger vehicle power battery box
While degree and intensity, the index of the high securities such as insulation, fire-retardant can be reached, also improve batch production consistency and assembly essence in addition
Degree, and mitigate battery case weight and realize vehicle lightweight.
(2) technical solution
In order to solve the above technical problem, the present invention provides a kind of electric passenger vehicle power battery boxes, including lower box
With the battery bracket in the lower box, the material of the lower box and battery bracket is carbon fiber, the battery
Bracket includes cross-distribution and downward opening trough girder, and the aperture position point of the trough girder is corresponded on the lower box bottom wall
It has a groove, the groove is adapted with the opening size of the trough girder, and the trough girder is closed with the lower box bottom wall
Conjunction forms closed cavity.
Preferably, the trough girder is divided into crossbeam and longeron, and the side of the crossbeam is equipped with groove, and the groove is for setting
Set battery status acquisition module.
Preferably, the lower box and battery bracket are monolithic construction.
Preferably, the lower box and battery bracket are bonded by five layers and four layers of carbon fiber base unit respectively.
Preferably, every layer of carbon fiber base unit is pasted laminate layer method or vacuum bag pressure sintering by die pressing or hand or is squeezed
Pulling shaping method or filament winding process are molded to obtain.
Preferably, it is tightly connected by sealing ring between the lower box and battery bracket.
Preferably, the battery bracket is Nian Jie with the lower box by adhesive.
Preferably, the adhesive is the special Strong Adhesive of composite material.
Preferably, the aperture position of the trough girder is provided with flanging, and the trough girder passes through the flanging and institute
State the upper surface fitting of lower box bottom wall
(3) advantageous effect
Technical scheme of the present invention has the advantages that：The electric passenger vehicle power battery box of the present invention, nowel
The material of body and battery bracket is all made of carbon fiber, and spill knot in correspondence with each other is provided on lower box and battery bracket
Structure, hollow whole cavity body structure is formed to be closed between battery bracket and the lower box bottom wall, and improving, battery case is whole
While body rigidity, intensity, moreover it is possible to mitigate the weight of battery case, realize vehicle lightweight.In addition, this kind uses carbon fibre materials
Battery case there are insulation, the characteristics such as fire-retardant, to improve the safety of vehicle.Furthermore this kind of hollow whole cavity body structure
Battery case be more convenient for assembly and mass production, to improve homogeneity of product.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
Some embodiments of invention for those of ordinary skill in the art without creative efforts, can be with
Obtain other attached drawings according to these attached drawings.
Fig. 1 is the lower box of the power battery box of the prior art and the assembling schematic diagram of battery bracket；
Fig. 2 is the structural schematic diagram of the battery bracket of the prior art；
Fig. 3 is the assembling schematic diagram of the lower box and battery bracket of the power battery box of the present invention；
Fig. 4 is the structural schematic diagram of the battery bracket of the present invention；
In figure：101, battery bracket；102, lower box；1011, lifting lug；1011a, big lifting lug；1011b, small lifting lug；
1012：Steel band；1013：Fastener；1, lower box；2, battery bracket；21, crossbeam；22, longeron.
Specific implementation mode
Embodiments of the present invention are described in further detail with reference to the accompanying drawings and examples.Following embodiment is used for
Illustrate the present invention, but cannot be used for limiting the scope of the invention.
In the description of the present invention, it should be noted that term "center", " longitudinal direction ", " transverse direction ", "upper", "lower",
The orientation or positional relationship of the instructions such as "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outside" is
It is based on the orientation or positional relationship shown in the drawings, is merely for convenience of description of the present invention and simplification of the description, rather than instruction or dark
Show that signified device or element must have a particular orientation, with specific azimuth configuration and operation, therefore should not be understood as pair
The limitation of the present invention.
The electric passenger vehicle power battery box of the present embodiment, refers to Fig. 3, including lower box 1 and is mounted on the nowel
Battery bracket 2 in body 1.By installing battery bracket 2 in the lower box 1, electric passenger vehicle power battery can be played
The puncture-proof second protection effect in bottom of case, to achieve the effect that duplicate protection power battery, makes the peace of power battery box
Full property greatly improves.Wherein, the material of lower box 1 and battery bracket 2 is carbon fiber.On this basis, lower box 1 and battery
It is provided with concave structure in correspondence with each other on bracket 2, is formed to be closed between battery bracket 2 and the bottom wall of the lower box 1
Hollow whole cavity body structure, more traditional battery case can loss of weight at least 60% or more while proof strength and rigidity.
Specifically, battery bracket 2 includes cross-distribution and downward opening trough girder.Wherein " downward opening trough girder "
Refer to that the cross section of beam is in inverted class concave.In addition, corresponding to the opening of the trough girder on the lower box bottom wall
Position distribution is fluted, and the groove is adapted with the opening size of the trough girder." adaptation " therein refers to
Convenient for being closed between trough girder ontology and lower box bottom wall, similar fit form between box cover and box body.When battery bracket 2
After being installed in place, trough girder is closed with lower box bottom wall, to form closed cavity between trough girder lower box bottom wall.This kind
Using the electric passenger vehicle power battery box of carbon fibre materials, hollow cavity formula structure convenient for assembly and mass production, thus
Improve homogeneity of product.
Wherein, the lower box 1 of the carbon fiber of the present embodiment, surfacing is simple in structure, to coordinate when with upper box lid
When, sealing effect easy to operate is good.
In the present embodiment, the trough girder of battery bracket 2 is divided into crossbeam 21 and longeron 22, and is handed between crossbeam 21 and longeron 22
Fork distribution please participate in Fig. 4, and by the way that the position relationship between crossbeam 21 and longeron 22 is rationally arranged, ensure 2 structure of battery bracket
Intensity.Certainly, crossbeam 21 and longeron 22 are only a kind of common form of setting load bearing beam of machinery field, battery bracket 2
The trough girder of other intertexture distribution forms may be used.
Further, the side of crossbeam is equipped with groove, this groove structure can be here arranged when arranging battery modules
The battery status acquisition module such as BMU, BTU, BDU, convenient for more reasonably utilizing arrangement space.
On this basis, in order to ensure the bond strength between battery bracket 2 and lower box 1, the preferably opening of trough girder
Position is provided with flanging, and the trough girder is bonded by the flanging with the upper surface of the lower box bottom wall.Specifically,
The opening of trough girder and the groove of lower box bottom wall correspond to, and the planar section of the flanging of trough girder and lower box bottom wall is affixed
It closes.It is formed and is closed and when the planar section of flanging and lower box bottom wall fits, between trough girder and lower box bottom wall
Cavity.
Obviously, other knots can also be applicable in using the electric passenger vehicle power battery box of carbon fibre materials in the present embodiment
Structure, such as lower box 1 and battery bracket 2 can be designed to solid shape.It uses between trough girder and lower box bottom wall herein
Closure forms hollow cavity body structure, can substantially reduce the weight of battery case, realizes vehicle lightweight.
In the present embodiment, preferably lower box 1 and battery bracket 2 is monolithic construction, so as to overcome traditional technology
The problem of batch production consistency difference caused by middle separate structure intensity is bad and integral solder.On this basis, 1 He of lower box
Battery bracket 2 is bonded by five layers and four layers of carbon fiber base unit respectively.Carbon fiber base unit therein is that structure can
The functional unit leaned on.Specifically, the surface shape and the complete phase of 1 surface texture of lower box of the carbon fiber base unit of lower box 1
Together, the different thickness for being only in that the two, need to set to obtain lower box 1 by five layers of carbon fiber basis elementary layer lay-up.Similarly, electric
Pond bracket 2 is to set to obtain by four layers of carbon fiber basis elementary layer lay-up.Adjacent carbon fiber base unit is by way of bonding
Ensure bond strength.
Wherein, every layer of carbon fiber base unit can be pasted by die pressing or hand laminate layer method or vacuum bag pressure sintering or
Formed by extrusion and tension method or filament winding process are molded to obtain.It specifically can be according to the complexity of production technology, production cost angularly
Consider.
In the present embodiment, since the material of lower box 1 and battery bracket 2 uses carbon fiber, preferred lower box 1 and electricity
Pond bracket 2 is bonded by adhesive.Wherein, adhesive is preferably the special Strong Adhesive of composite material such as EC2216.Nowel
This combination of body 1 and battery bracket 2 can overcome lower box 1 and the whole weldering of battery bracket 2 in conventional batteries box structure
Contact is more, some destabilizing factors of objective reality, and complicated fastener constructions is needed to fix battery bracket 2 and lower box 1, and by
In the objective realities such as welding weld seam, welding slag, overlap, the burr that may bring the problem of.
In addition, can also be sealed by sealing element between lower box 1 and battery bracket 2.Specifically, due to 1 He of lower box
The sealing strip of battery bracket 2 passes through sealing ring simple in structure in an integral planar between lower box 1 and battery bracket 2
It can reach very strong sealing effect.
Embodiment of above is merely to illustrate the present invention rather than limitation of the present invention.Although with reference to embodiment to this hair
It is bright to be described in detail, it will be understood by those of ordinary skill in the art that, to technical scheme of the present invention carry out it is various combination,
Modification or equivalent replacement, without departure from the spirit and scope of technical solution of the present invention, the right that should all cover in the present invention is wanted
It asks in range.
Claims (3)
1. a kind of electric passenger vehicle power battery box, including lower box and the battery bracket in the lower box, special
Sign is that the material of the lower box and battery bracket is carbon fiber, and the battery bracket includes cross-distribution and opening court
Under trough girder, the aperture position distribution that the trough girder is corresponded on the lower box bottom wall is fluted, the groove with it is described
The opening size of trough girder is adapted, and the trough girder is closed to form closed cavity with the lower box bottom wall；The groove profile
Beam is divided into crossbeam and longeron, and the side of the crossbeam is equipped with groove, and the groove is for being arranged battery status acquisition module；It is described
The aperture position of trough girder is provided with flanging, the upper surface that the trough girder passes through the flanging and the lower box bottom wall
Fitting；The lower box and battery bracket are monolithic construction；The lower box and battery bracket are respectively by five layers and four layers
Carbon fiber base unit is bonded；Every layer of carbon fiber base unit pastes laminate layer method or vacuum bag heat by die pressing or hand
Platen press or formed by extrusion and tension method or filament winding process are molded to obtain；It is sealed and is connected by sealing ring between the lower box and battery bracket
It connects.
2. electric passenger vehicle power battery box according to claim 1, which is characterized in that the battery bracket passes through gluing
Agent is Nian Jie with the lower box.
3. electric passenger vehicle power battery box according to claim 2, which is characterized in that the adhesive is composite material
Special Strong Adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812068.4A CN105336897B (en) | 2015-11-20 | 2015-11-20 | A kind of electric passenger vehicle power battery box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510812068.4A CN105336897B (en) | 2015-11-20 | 2015-11-20 | A kind of electric passenger vehicle power battery box |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105336897A CN105336897A (en) | 2016-02-17 |
| CN105336897B true CN105336897B (en) | 2018-08-03 |
Family
ID=55287298
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510812068.4A Active CN105336897B (en) | 2015-11-20 | 2015-11-20 | A kind of electric passenger vehicle power battery box |
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Families Citing this family (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108110274B (en) * | 2016-11-25 | 2024-03-08 | 江苏冰城氢能科技有限公司 | Hydrogen fuel cell, automobile and unmanned aerial vehicle |
| CN107871831A (en) * | 2017-12-08 | 2018-04-03 | 华霆（合肥）动力技术有限公司 | Battery case and battery modules |
| CN108232073A (en) * | 2017-12-29 | 2018-06-29 | 智车优行科技（上海）有限公司 | Battery for electric automobile babinet and its manufacturing method, electric vehicle |
| CN108206255A (en) * | 2018-02-06 | 2018-06-26 | 江苏银河电子股份有限公司 | Lightweight battery case keel structure and with its battery case, electric vehicle |
| CN108172732A (en) * | 2018-02-27 | 2018-06-15 | 华霆（合肥）动力技术有限公司 | Battery modules and battery system |
| CN111834559A (en) * | 2019-03-29 | 2020-10-27 | 苏州一航新材料科技有限公司 | Battery system bottom shell for electric automobile |
| CN112117397A (en) * | 2019-06-21 | 2020-12-22 | 比亚迪股份有限公司 | Battery pack and vehicle |
| CN112290138A (en) * | 2019-06-28 | 2021-01-29 | 比亚迪股份有限公司 | Battery tray and vehicle |
| US20220367959A1 (en) * | 2021-05-11 | 2022-11-17 | Derek Ford | Battery spacer for a battery powered hand tool |
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|---|---|---|---|---|
| CN102468454A (en) * | 2010-10-28 | 2012-05-23 | 现代自动车株式会社 | Battery pack housing assembly for electric vehicle using plastic composite material |
| CN102476578A (en) * | 2010-11-24 | 2012-05-30 | 现代自动车株式会社 | Integrated high-voltage battery case |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203277527U (en) * | 2013-05-30 | 2013-11-06 | 浙江超威创元实业有限公司 | Power battery pack |
| CN103921689A (en) * | 2014-04-30 | 2014-07-16 | 天津瑞林迪金属制品有限公司 | Electric vehicle battery box achieving rapid replacement |
| CN104659308B (en) * | 2015-03-12 | 2018-01-26 | 重庆长安汽车股份有限公司 | A kind of battery bag lower box |
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2015
- 2015-11-20 CN CN201510812068.4A patent/CN105336897B/en active Active
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102468454A (en) * | 2010-10-28 | 2012-05-23 | 现代自动车株式会社 | Battery pack housing assembly for electric vehicle using plastic composite material |
| CN102476578A (en) * | 2010-11-24 | 2012-05-30 | 现代自动车株式会社 | Integrated high-voltage battery case |
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| Publication number | Publication date |
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| CN105336897A (en) | 2016-02-17 |
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