CN109435663A - Composite material battery pack car body installs point structure - Google Patents
Composite material battery pack car body installs point structure Download PDFInfo
- Publication number
- CN109435663A CN109435663A CN201811284465.9A CN201811284465A CN109435663A CN 109435663 A CN109435663 A CN 109435663A CN 201811284465 A CN201811284465 A CN 201811284465A CN 109435663 A CN109435663 A CN 109435663A
- Authority
- CN
- China
- Prior art keywords
- composite material
- battery pack
- material battery
- car body
- lower box
- 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.)
- Pending
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60K—ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OF TRANSMISSIONS IN VEHICLES; ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS IN VEHICLES; AUXILIARY DRIVES FOR VEHICLES; INSTRUMENTATION OR DASHBOARDS FOR VEHICLES; ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GAS EXHAUST OR FUEL SUPPLY OF PROPULSION UNITS IN VEHICLES
- B60K1/00—Arrangement or mounting of electrical propulsion units
- B60K1/04—Arrangement or mounting of electrical propulsion units of the electric storage means for propulsion
-
- 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
-
- 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
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- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The invention discloses a kind of composite material battery pack car bodies to install point structure.It includes: composite material battery pack lower box that the composite material battery pack car body, which installs point structure, comprising: composite layer and foam core offer via hole at the car body installation point of the composite material battery pack lower box；Weldment comprising: welding metal piece and metal sleeve, the metal sleeve are threaded through in the via hole at the car body installation point of composite material battery pack lower box, and are bonded by adhesive；The upper surface of the welding metal piece is Nian Jie by adhesive with the mating surface of composite material battery pack lower box；And L-type sheet metal, through hole positioning are bonded at the car body installation point of composite material battery pack lower box using adhesive, to form " C " type package structure with the welding metal piece.Composite material battery pack car body installation point structure not only improves the intensity of structure, rigidity, the also wearability of raising composite material tie point, crush resistance energy.
Description
Technical field
The present invention relates to new-energy automobile field, in particular to a kind of composite material battery pack car body installs point structure.
Background technique
Under soaring oil prices and the dual background of low emission, developing new energy becomes the necessarily choosing of low-carbon environment-friendly energy-saving and emission-reduction
It selects, new-energy automobile has also obtained more and more concerns.Currently, with the rapid development of new-energy automobile, battery pack conduct
The power producer of new-energy automobile, energy density size determine automobile course continuation mileage, loss of weight at solution course continuation mileage compared with
Short important means.
Composite density is low, and specific strength, specific stiffness are higher, and its corrosion-resistant anti-fatigue performance is superior to conventional metals,
Automobile industry has begun trial and replaces part metals part using composite material, and each new energy car battery manufacturer is also
Gradually Battery case is manufactured using fibre reinforced composites.
It is unavoidably the problem of it connect with metal body in application fibre reinforced composites Battery case.And
When carbon fibre composite Battery case and metal body are directly connected to, due to needing bolt pretightening very big, it can damage compound
Material surface influences connection fatigue life；In long-time use process, metal body can and composite material friction and composite wood
Material wears no resistance, and will cause car body installation point structure premature degradation, seriously affects the service life of composite material battery pack.It is compound
Material cell packet is suspended on chassis in the following, working environment is severe, and foam core does not protect the meeting moisture absorption in composite material,
The weight of battery pack and the performance of body mounts are influenced, the service life of composite material battery pack also can be seriously restricted.
The information disclosed in the background technology section is intended only to increase the understanding to general background of the invention, without answering
When being considered as recognizing or imply that the information constitutes the prior art already known to those of ordinary skill in the art in any form.
Summary of the invention
The purpose of the present invention is to provide a kind of simple and reasonable composite material battery pack car bodies to install point structure, should
Composite material battery pack car body installation point structure not only improves the intensity of structure, rigidity, and also raising composite material tie point is resistance to
Mill property, crush resistance energy, and there is polyurethane adhesive sealing to prevent the foam core moisture absorption, and cost can be reduced to a certain degree, have
Help push carbon fibre composite battery pack industrial application.
To achieve the above object, the present invention provides a kind of composite material battery pack car bodies to install point structure, comprising: compound
Material cell packet lower box comprising: composite layer and the foam core being arranged in inside the composite layer, it is described compound
Via hole is offered at the car body installation point of material cell packet lower box；Weldment comprising: welding metal piece and with the welding gold
Belong to the metal sleeve that piece is welded and fixed, the metal sleeve is threaded through at the car body installation point of composite material battery pack lower box
In via hole, and it is bonded by adhesive；The upper surface of the welding metal piece and the mating surface of composite material battery pack lower box
It is bonded by adhesive；And L-type sheet metal, one side offer through-hole, through hole positioning is bonded in compound using adhesive
At the car body installation point of material cell packet lower box, to form " C " type package structure with the welding metal piece.
In a preferred embodiment, the composite layer is flame-retarded resin base fiber reinforced composite material, carbon fiber
Dimension is unidirectional cloth, and 3.0~6.0mm of overall thickness, resin is fire retarding epoxide resin；The foam core selects PMI or PET foam,
Foam density is 75kg/m3-120kg/m3。
In a preferred embodiment, composite material battery pack lower box is molded is made in a mold.
In a preferred embodiment, adhesive is polyurethane adhesive.
Compared with prior art, the invention has the following beneficial effects: the composite material battery pack car bodies to install point structure
By inside composite material foam core lower box car body installation point and lower surface Bonding Metal sleeve and welding metal piece
The structure type of L-type sheet metal is glued in weldment, outside, not only improves intensity, the rigidity of structure, also the connection of raising composite material
The wearability of point, crush resistance energy, and there is polyurethane adhesive sealing to prevent the foam core moisture absorption, and can reduce into a certain degree
This, helps to push carbon fibre composite battery pack industrial application.
Detailed description of the invention
Fig. 1 is the structural schematic diagram that composite material battery pack car body of the invention installs point structure.
Fig. 2 is the partial enlargement structural representation that composite material battery pack car body of the invention installs point structure.
Fig. 3 is the schematic cross-sectional view of Fig. 2.
Fig. 4 is the composite material battery pack lower box section view knot that composite material battery pack car body of the invention installs point structure
Structure schematic diagram.
Specific embodiment
With reference to the accompanying drawing, specific embodiments of the present invention will be described in detail, it is to be understood that guarantor of the invention
Shield range is not limited by the specific implementation.
Unless otherwise explicitly stated, otherwise in entire disclosure and claims, term " includes " or its change
Changing such as "comprising" or " including " etc. will be understood to comprise stated element or component, and not exclude other members
Part or other component parts.
As shown in Figure 1 to Figure 3, the composite material battery pack car body of specific embodiment installs point structure according to the present invention
Specific structure includes: composite material battery pack lower box 1, L-type sheet metal 2 and weldment 6, wherein L-type sheet metal 2 and welding
Part 6 is adhesive in outside the car body installation point of composite material battery pack lower box 1, is formed " C " type package structure, is effectively improved the knot
The local strength of structure, rigidity；Meanwhile structure " C " the type sheet metal avoids composite material battery pack from directly contacting with metal body
Improve its wearability and service life.
Specifically, as shown in figure 4, composite material battery pack lower box 1 includes: composite layer 7 and foam core 8,
Via hole is offered at the car body installation point of composite material battery pack lower box 1.Composite material battery pack lower box 1 also can effectively drop
The cost of low battery pack.Since car body is decorateeed, to require hole precision and position precision high, and opened on composite material high accurate hole at
This is significantly larger than metal, so, the cost of battery pack can be reduced using the structure.Composite material battery pack is suspended on vehicle body
In the following, working environment is severe, the present invention can effectively prevent the moisture absorption of foam core in composite material on chassis, influence the weight of battery pack
The performance of amount and body mounts.
Preferably, the composite layer 7 is flame-retarded resin base fiber reinforced composite material, and carbon fiber is unidirectional cloth, always
3.0~6.0mm of thickness, resin are fire retarding epoxide resin.The foam core 8 selects PMI or PET foam, and foam density is
75kg/m3-120kg/m3Equal satisfiability can require.
Preferably, composite material battery pack lower box 1 is molded is made in a mold.
Weldment 6 includes: welding metal piece 4 and the metal sleeve 5 that is welded and fixed with the welding metal piece 4, metal sleeve 5
It is threaded through in the via hole at the car body installation point of composite material battery pack lower box 1, and is bonded by adhesive 3；Welding metal
The upper surface of piece 4 is be bonded by adhesive 3 with the mating surface of composite material battery pack lower box 1.In advance welding metal sleeve with
Welding metal piece, be prevent the later period to be glued to weld again and cause composite failure, meanwhile, weldment also improves the stable structure
Property.Metal sleeve can effectively improve car body installation point structure crush resistance energy under big pretightning force.Due to composite material battery case
When body and metal body are directly connected to, in long-time use process, metal body can and composite material friction and composite material is resistance to
Mill property is poor, will cause car body installation point structure premature degradation, seriously affects the service life of composite material battery pack.
The side of L-type sheet metal 2 offers through-hole, and through hole positioning is bonded in composite material battery pack using adhesive 3
At the car body installation point of lower box 1, to form " C " type package structure with welding metal piece 4, the part of the structure is effectively improved
Intensity, rigidity；Meanwhile structure " C " the type sheet metal avoid composite material battery pack from metal body directly contacting raising its is resistance to
Mill property and service life.
Preferably, the adhesive 3 is polyurethane adhesive.
To sum up, composite material battery pack car body installation point structure in composite material foam core lower box car body by pacifying
Internal and lower surface Bonding Metal sleeve and welding metal piece weldment is decorateeed, the structure type of L-type sheet metal is glued in outside,
Intensity, the rigidity of structure, the also wearability of raising composite material tie point, crush resistance energy are not only improved, and has polyurethane
Glue sealing prevents the foam core moisture absorption, and can reduce cost to a certain degree, helps to push carbon fibre composite battery pack
Industrial application.
The aforementioned description to specific exemplary embodiment of the invention is in order to illustrate and illustration purpose.These descriptions
It is not wishing to limit the invention to disclosed precise forms, and it will be apparent that according to the above instruction, can much be changed
And variation.The purpose of selecting and describing the exemplary embodiment is that explaining specific principle of the invention and its actually answering
With so that those skilled in the art can be realized and utilize a variety of different exemplary implementation schemes of the invention and
Various chooses and changes.The scope of the present invention is intended to be limited by claims and its equivalents.
Claims (4)
1. a kind of composite material battery pack car body installs point structure characterized by comprising
Composite material battery pack lower box comprising: composite layer and the foam core being arranged in inside the composite layer,
Via hole is offered at the car body installation point of the composite material battery pack lower box；
Weldment comprising: welding metal piece and the metal sleeve being welded and fixed with the welding metal piece, the metal sleeve are worn
It is located in the via hole at the car body installation point of composite material battery pack lower box, and is bonded by adhesive；The welding metal
The upper surface of piece is Nian Jie by adhesive with the mating surface of composite material battery pack lower box；And
L-type sheet metal, one side offer through-hole, and through hole positioning is bonded in composite material battery pack lower box using adhesive
Car body installation point at, thus with the welding metal piece formed " C " type package structure.
2. composite material battery pack car body according to claim 1 installs point structure, which is characterized in that the composite material
Layer is flame-retarded resin base fiber reinforced composite material, and carbon fiber is unidirectional cloth, and 3.0~6.0mm of overall thickness, resin is flame retardant epoxy
Resin；The foam core selects PMI or PET foam, foam density 75kg/m3-120kg/m3。
3. composite material battery pack car body according to claim 1 installs point structure, which is characterized in that the composite material
Battery pack lower box is molded is made in a mold.
4. composite material battery pack car body according to claim 1 installs point structure, which is characterized in that the adhesive is
Polyurethane adhesive.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284465.9A CN109435663A (en) | 2018-10-31 | 2018-10-31 | Composite material battery pack car body installs point structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811284465.9A CN109435663A (en) | 2018-10-31 | 2018-10-31 | Composite material battery pack car body installs point structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109435663A true CN109435663A (en) | 2019-03-08 |
Family
ID=65550278
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811284465.9A Pending CN109435663A (en) | 2018-10-31 | 2018-10-31 | Composite material battery pack car body installs point structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109435663A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629333A (en) * | 2021-06-25 | 2021-11-09 | 东风汽车集团股份有限公司 | Box, power battery and vehicle |
-
2018
- 2018-10-31 CN CN201811284465.9A patent/CN109435663A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113629333A (en) * | 2021-06-25 | 2021-11-09 | 东风汽车集团股份有限公司 | Box, power battery and vehicle |
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