CN208142250U - Composite material battery case lower box - Google Patents
Composite material battery case lower box Download PDFInfo
- Publication number
- CN208142250U CN208142250U CN201820632733.0U CN201820632733U CN208142250U CN 208142250 U CN208142250 U CN 208142250U CN 201820632733 U CN201820632733 U CN 201820632733U CN 208142250 U CN208142250 U CN 208142250U
- Authority
- CN
- China
- Prior art keywords
- battery case
- lower box
- composite material
- covering
- material battery
- 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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Links
- 239000002131 composite material Substances 0.000 title claims abstract description 41
- 239000006260 foam Substances 0.000 claims abstract description 30
- 238000009434 installation Methods 0.000 claims abstract description 10
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 9
- 238000010276 construction Methods 0.000 claims abstract description 6
- 230000002787 reinforcement Effects 0.000 claims description 7
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052799 carbon Inorganic materials 0.000 claims description 5
- 239000000835 fiber Substances 0.000 claims description 5
- 238000007789 sealing Methods 0.000 claims description 4
- 229920007790 polymethacrylimide foam Polymers 0.000 abstract description 4
- 208000016261 weight loss Diseases 0.000 abstract description 2
- 230000004580 weight loss Effects 0.000 abstract description 2
- 238000000034 method Methods 0.000 description 13
- 239000000463 material Substances 0.000 description 6
- 230000008569 process Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 5
- 229920000139 polyethylene terephthalate Polymers 0.000 description 5
- 239000005020 polyethylene terephthalate Substances 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 4
- 238000004519 manufacturing process Methods 0.000 description 4
- 229910052751 metal Inorganic materials 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 239000010959 steel Substances 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 229910000838 Al alloy Inorganic materials 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 239000007769 metal material Substances 0.000 description 2
- 238000000465 moulding Methods 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 238000003466 welding Methods 0.000 description 2
- 238000001816 cooling Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004146 energy storage Methods 0.000 description 1
- 238000001125 extrusion Methods 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 1
- 239000010931 gold Substances 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 208000020442 loss of weight Diseases 0.000 description 1
- 238000002156 mixing Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- -1 polyethylene terephthalate Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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 utility model discloses a kind of composite material battery case lower boxes, including：Upper covering, lower covering and foam core, foam core are filled between covering and lower covering.Wherein, which also has frame, longitudinally reinforced beam and lateral reinforcing beam, has foam core integral structure, including support functional area, installation function region and upper and lower box linkage function region；The foam core is made of any one in PMI foam, PET foam.Foam sandwich construction is used in the utility model battery case lower box, there is integral structure, and number of parts is reduced, in the structure for simplifying Battery case, better performances, weight-loss ratio is higher, on the basis of guaranteeing mechanical property, the weight of battery case lower box is significantly reduced.
Description
Technical field
The utility model relates to a kind of battery case lower box, in particular to a kind of composite material battery case lower box.
Background technique
Currently, energy storage device-battery case as pure electric vehicle or electric hybrid vehicle of oil, mainly by upper and lower box, electricity
Chi Mo group, cooling system and each electric control unit are constituted.Wherein, Battery case mostly uses metal material to manufacture and design, and has
The functions such as carrying and connection generally use steel plate punched and form and constitute assembly by welding, specifically can be by various metal plates
Gold and profile type part are using lower box is formed after welding or mechanical connection assembly, to satisfy the use demand.Such molding box
Body has the advantages such as intensity is good, high temperature resistant, technology difficulty is low, manufacturing cost is low.But what is used in such cabinet is mostly steel
Material, density is big, causes cabinet weight itself larger；In addition, the structure of Battery case is mainly by multiple metal plates for assurance function
Golden part is welded, and causes the structure of cabinet typically more complicated.
Therefore, lightweight is the important directions of current Development of Electric Vehicles, by carrying out light-weight design to vehicle to drop
Low complete vehicle weight, which will become, one of the important means of to solve the above problems.Currently, the lightweight mode to existing cabinet is mostly
Loss of weight is carried out in such a way that aluminum alloy plate materials or profile substitute to original steel cabinet or section structural, such as replaces reinforcement structure
It is changed to aluminium alloy extrusions, it is a small number of or original cabinet skin material is replaced with into carbon fibre composite by steel plate.
For the lightweight mode of material substitution used by existing Battery case, although the reduction in density brings electricity
The direct decline of pond box weight, but original Battery case still remains the shortcomings that structure is complicated.Covering and load-carrying construction are held
Power structure is relatively independent with mounting structure, needs to separately design and manufacture to refill and is assigned to assembly.In addition, using the mixing of more materials
It needs to add riveting side using the splicing of unconventional connection type such as metal and composite material when mode, between different materials
Formula, this also brings along the complexity of assembly technology, aggravates manufacturing cost.
Utility model content
The purpose of this utility model is to provide a kind of composite material battery case lower boxes, to overcome existing composite material
Battery case lower box heavy, structure is complicated, the disadvantage of assembly technology complexity.
To realize said one or multiple purposes, in an embodiment of the utility model, the utility model is provided
A kind of composite material battery case lower box, including：Upper covering；Lower covering；And foam core, covering is filled in under
Between covering；Wherein, upper covering and lower covering constitute load-carrying construction, so that lower box has preset shape；Upper and lower covering with
It is not mechanically connected between foam sandwich, fills up when only the resin in forming process flows in die cavity, is formed by curing one
Body.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Cabinet, the upper covering and lower covering are made of carbon fibre composite.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Cabinet, the foam core are made of any one in PMI foam, PET foam.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Cabinet, the composite material battery case lower box also have frame, longitudinally reinforced beam and lateral reinforcing beam；Wherein, the frame
It is distributed in cabinet surrounding；The longitudinally reinforced beam and lateral reinforcing beam are structure as a whole, and are used as frame reinforcement structure.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Cabinet, the composite material battery case lower box have foam core integral structure.
Cabinet is covered by HP-RTM technique (high-pressure resin transfer modling technique) or LLD technique (wet process mould pressing process)
Skin, foam core, reinforcement structure, securing member, which are realized, to be integrally formed.
Wherein, any one of securing member in nut, stud, pin.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Cabinet, the composite material battery case lower box include：Support functional area, installation function region and upper and lower box connect function
It can region.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Pre-buried type fastener is arranged in cabinet, the installation function region.
Wherein, installation function region arranges pre-buried type fastener for meeting the connection requirement of internal mounting bracket etc..
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Fastener and sealing ring are arranged in cabinet, upper and lower box linkage function region.
Wherein, upper and lower box linkage function region arrangement fastener and sealing ring are for meeting the installation docked with upper box
It is required that.
In a preferred embodiment of the utility model, the utility model is provided under a kind of composite material battery case
Aluminum profile beam is also arranged in cabinet, upper and lower box linkage function region.
Wherein, it arranges that the rigidity of entire cabinet can be improved in aluminum profile beam in upper and lower box linkage function region, is worked as with meeting
Lower box encounters the more harsh situation of carrying or collision performance requirement.
In an embodiment of the utility model, the utility model provides a kind of battery case, including：Lower box and
Battery component, the lower box are above-mentioned composite material battery case lower box.
Compared with prior art, it is had the advantages that according to the utility model：
(1) foam sandwich construction is used in the utility model battery case lower box, and by the reasonable cloth of structure and function feature
It sets, highly integrated, relative to metal lower box, the utility model battery case lower box has integral structure, that is to say, that this
The lower box of utility model is exactly one block of plate, and number of parts is reduced, in the structure for simplifying Battery case.
(2) the cabinet covering in the utility model and reinforcement structure (longitudinally reinforced beam and lateral reinforcing beam), connect fastening
Part is integrally formed, better performances, and weight-loss ratio is higher.
(3) the utility model is combined using foam core with carbon fibre composite, on the basis of guaranteeing mechanical property,
Significantly reduce the weight of battery case lower box.
(4) foam core that the utility model uses also has excellent sound insulation and noise reduction effect, facilitates vehicle NVH
The improvement of energy.
Definition
" NVH " described in the utility model is the english abbreviation of Noise, Vibration, Harshness, refers to noise, vibration
Dynamic and sound vibration roughness.
" PMI foam " described in the utility model refers to Polymethacrylimide, English name：
Polymethacrylimide。
" PET foam " described in the utility model refers to polyethylene terephthalate foam, also known as polyester resin, English
Title：Polyethyleneterephthalate.
Detailed description of the invention
Fig. 1 is the overall schematic according to the utility model composite material battery case lower box.
Fig. 2 is the composition schematic diagram according to the utility model composite material battery case lower box.
Fig. 3 is the structural schematic diagram according to the utility model composite material battery case lower box；
Wherein, figure A-A is to reinforce section structure diagram out；Figure B-B is that frame goes out section structure diagram.
Fig. 4 is the structural region schematic diagram according to the utility model composite material battery case lower box.
Main appended drawing reference explanation：
The upper covering of 1-, 2- foam core, covering under 3-, 4- frame, the longitudinally reinforced beam of 5-, 6- transverse direction reinforcing beam；
A- support functional area, b- installation function region, c- upper and lower box linkage function region.
Specific embodiment
With reference to the accompanying drawing, specific embodiment of the present utility model is described in detail, it is to be understood that this is practical
Novel protection scope 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.
Embodiment 1
According to fig. 2 and shown in Fig. 3, the lower box of the utility model includes upper covering 1, lower covering 3 and foam core 2,
Foam core 2 is filled between covering 1 and lower covering 3, which has foam core integral structure；Wherein, it covers up and down
The effect of skin 1 is that lower box is made to have preset shape, to constitute load-carrying construction；Upper covering 1, lower covering 3 and foam sandwich 2 it
Between be not mechanically connected, fill up when only the resin in the forming process flows in die cavity, be formed by curing one；The upper illiteracy
Skin 1 and lower covering 3 are made of carbon fibre composite；The foam core 2 is by any one system in PMI foam, PET foam
At.
Referring to Fig. 1, the lower box also has frame 4, longitudinally reinforced beam 5 and lateral reinforcing beam 6；Wherein, frame 4 is distributed
Longitudinally reinforced in cabinet surrounding, 5 are structure as a whole with lateral reinforcing beam 6, are used as frame reinforcement structure.
Cabinet covering, foam core, reinforcement structure, securing member pass through HP-RTM technique (high-pressure resin transfer modling
Technique) or LLD technique (wet process mould pressing process) integrated molding；The securing member is any in nut, stud, pin
It is a kind of.
Referring to fig. 4, the utility model lower box mainly includes three functional areas, specifically：Support functional area a, peace
Fill functional area b and upper and lower box linkage function region c.Wherein, installation function region b arranges pre-buried type fastener, is used for
Meet the connection requirement of internal mounting bracket etc.；Upper and lower box linkage function region c arranges fastener and sealing ring, for meeting
The installation requirement docked with upper box；Upper and lower box linkage function region c also arranges that aluminum profile beam, aluminum profile beam are glued to following table
The rigidity of entire cabinet can be improved in face, to meet when lower box encounters the more harsh situation of carrying or collision performance requirement.
The description of the aforementioned specific exemplary embodiment to the utility model is in order to illustrate and illustration purpose.These
Description is not wishing to for the utility model to be limited to disclosed precise forms, and it will be apparent that according to the above instruction, can carry out
It is many to change and change.The purpose of selecting and describing the exemplary embodiment is that explaining the specific principle of the utility model
And its practical application, so that those skilled in the art can be realized and utilize a variety of different examples of the utility model
Property embodiment and various chooses and changes.The scope of the utility model is intended to by claims and its waits similar shapes
Formula is limited.
Claims (9)
1. a kind of composite material battery case lower box, which is characterized in that including：
Upper covering；
Lower covering；And
Foam core is filled between covering and lower covering；
Wherein, upper covering and lower covering constitute load-carrying construction, so that lower box has preset shape.
2. composite material battery case lower box according to claim 1, which is characterized in that the upper covering and lower covering by
Carbon fibre composite is made.
3. composite material battery case lower box according to claim 1, which is characterized in that the foam core is steeped by PMI
Any one in foam, PET foam is made.
4. composite material battery case lower box according to claim 1, which is characterized in that under the composite material battery case
Cabinet also has frame, longitudinally reinforced beam and lateral reinforcing beam；
Wherein, the frame is distributed in cabinet surrounding；The longitudinally reinforced beam and lateral reinforcing beam are structure as a whole, and are used as frame
Reinforcement structure.
5. composite material battery case lower box according to claim 1, which is characterized in that under the composite material battery case
Cabinet has foam core integral structure.
6. composite material battery case lower box according to claim 1, which is characterized in that under the composite material battery case
Cabinet includes：Support functional area, installation function region and upper and lower box linkage function region.
7. composite material battery case lower box according to claim 6, which is characterized in that the installation function region arrangement
Pre-buried type fastener.
8. composite material battery case lower box according to claim 6, which is characterized in that the upper and lower box linkage function
Fastener and sealing ring are arranged in region.
9. composite material battery case lower box according to claim 6, which is characterized in that the upper and lower box linkage function
Aluminum profile beam is also arranged in region.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820632733.0U CN208142250U (en) | 2018-04-28 | 2018-04-28 | Composite material battery case lower box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820632733.0U CN208142250U (en) | 2018-04-28 | 2018-04-28 | Composite material battery case lower box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208142250U true CN208142250U (en) | 2018-11-23 |
Family
ID=64311857
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820632733.0U Active CN208142250U (en) | 2018-04-28 | 2018-04-28 | Composite material battery case lower box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208142250U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134056A (en) * | 2023-10-26 | 2023-11-28 | 杭州卡涞复合材料科技有限公司 | Lower box body of multi-material composite power battery |
-
2018
- 2018-04-28 CN CN201820632733.0U patent/CN208142250U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117134056A (en) * | 2023-10-26 | 2023-11-28 | 杭州卡涞复合材料科技有限公司 | Lower box body of multi-material composite power battery |
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| GR01 | Patent grant | ||
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| PD01 | Discharge of preservation of patent |
Date of cancellation: 20200119 Granted publication date: 20181123 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20200119 Granted publication date: 20181123 |
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| PP01 | Preservation of patent right | ||
| PD01 | Discharge of preservation of patent |
Date of cancellation: 20230119 Granted publication date: 20181123 |
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| PD01 | Discharge of preservation of patent | ||
| PP01 | Preservation of patent right |
Effective date of registration: 20230119 Granted publication date: 20181123 |
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| PP01 | Preservation of patent right |