CN209534724U - Battery bottom plate structure, battery case and electric vehicle - Google Patents
Battery bottom plate structure, battery case and electric vehicle Download PDFInfo
- Publication number
- CN209534724U CN209534724U CN201920032994.3U CN201920032994U CN209534724U CN 209534724 U CN209534724 U CN 209534724U CN 201920032994 U CN201920032994 U CN 201920032994U CN 209534724 U CN209534724 U CN 209534724U
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- China
- Prior art keywords
- sealing plate
- top layer
- battery
- layer sealing
- slot position
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Classifications
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- 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
- H01M50/271—Lids or covers for the racks or secondary casings
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- 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
-
- 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 battery bottom plate structure, battery case and electric vehicles, for electric automobiles, including top layer sealing plate, bottom sealing plate and supporting frame, top layer sealing plate and/or bottom sealing plate are equipped with welding slot position, top layer sealing plate and the bottom sealing plate weld at the welding slot position, supporting frame and top layer sealing plate and/or the bottom sealing plate weld at welding slot position, form several enclosure spaces between top layer sealing plate and the bottom sealing plate.The Synchronous lifting that can be realized simultaneously both cabinet intensity, battery case carrying electricity performance by the technical program, further increases the safety and volume energy density of entire battery system.Unique layer structure design simultaneously, solve the problems, such as that the serious welding deformation of common extrudate structure bring and type chamber distance are relatively fixed, it is adjusted by the reserved welding slot position of active and flexible and changeable top layer sealing plate, bottom sealing plate distance, provides possibility for active control deflection and box baseplate thickness distance.
Description
Technical field
The utility model is used for electric automobiles, more particularly to a kind of battery bottom plate structure, battery case and electric vehicle.
Background technique
The lightweight of current battery case is the development trend of entire battery of electric vehicle, but constantly mentioning with battery weight
The load-bearing requirements of height, Battery case are also increasing, while battery case also needs to meet the basic peaces such as bottom stone is hit, bottom scrapes
Full performance, this just proposes great challenge to the bottom plate of battery case and battery case.Simultaneously as Battery case is more and more huger,
Common extrudate structure bring welding deformation is also increasingly severe.
Utility model content
The purpose of this utility model is that at least solving one of the technical problems existing in the prior art, a kind of battery is provided
Bottom plate structure, battery case and electric vehicle can be realized simultaneously synchronizing for performance of both cabinet intensity, battery case carrying electricity and mention
It rises, further increases the safety and volume energy density of entire battery system.
The technical scheme adopted by the utility model to solve the technical problem is as follows: a kind of battery bottom plate structure, including top
Layer sealing plate, bottom sealing plate and supporting frame, the top layer sealing plate and/or the bottom sealing plate are equipped with welding slot position, the top
Layer sealing plate and the bottom sealing plate weld at the welding slot position, the supporting frame and the top layer sealing plate and/or described
Bottom sealing plate welds at the welding slot position, forms several enclosure spaces between the top layer sealing plate and the bottom sealing plate.
Preferably, the bottom sealing plate is smooth, the top layer sealing plate be equipped with welding slot position, the top layer sealing plate with it is described
Bottom sealing plate is welded by agitating friction at the welding slot position and is connected.
Preferably, the supporting frame is equipped with support edge, the support edge and the top layer sealing plate and/or the bottom sealing plate
It is welded and is connected by agitating friction.
Preferably, multiple enclosure spaces are in several horizontally-arranged or tandem along straight line or curved arrangement.
Preferably, several reinforcing rib structures are equipped in the inside of enclosure space on the bottom sealing plate.
Preferably, filler is equipped in all or part of enclosure space.
Preferably, the top layer sealing plate of all or part of enclosure space is equipped with through-hole.
Preferably, the filler includes one of polyurethane material, silica gel, butane rubber or a variety of.
A kind of battery case, including battery bottom plate structure described in any of the above technical solution.
A kind of electric vehicle, including battery case described in any of the above technical solution.
A technical solution in above-mentioned technical proposal at least has the following advantages that or one of beneficial effect: passing through this technology
The innovation of scheme can be realized simultaneously the Synchronous lifting of both cabinet intensity, battery case carrying electricity performance, further increase whole
The safety and volume energy density of a battery system.Unique layer structure design simultaneously, solves common extrudate knot
The problem of serious welding deformation of structure bring and relatively fixed type chamber distance, by the reserved welding slot position of active and flexible and changeable
Top layer sealing plate, bottom sealing plate distance adjust, provide possibility for active control deflection and box baseplate thickness distance.
Detailed description of the invention
The utility model is described in further detail with reference to the accompanying drawing:
Fig. 1 is the utility model one embodiment structural schematic diagram；
Fig. 2 is one embodiment partial sectional view shown in FIG. 1；
Fig. 3 is partial enlarged view at A in Fig. 2；
Fig. 4 is another embodiment partial sectional view of the utility model；
Fig. 5 is partial enlarged view at B in Fig. 4；
Fig. 6 is another example structure schematic diagram of the utility model；
Fig. 7 is one embodiment partial sectional view shown in fig. 6；
Fig. 8 is partial enlarged view at C in Fig. 7.
Specific embodiment
This part will be described in specific embodiment of the utility model, and the preferred embodiment of the utility model is in the accompanying drawings
It shows, the effect of attached drawing is the description with figure supplementary explanation book word segment, enables a person to intuitively, visually understand originally
The each technical characteristic and overall technical architecture of utility model, but it should not be understood as the limit to scope of protection of the utility model
System.
In the utility model, when if there is being described to direction (upper and lower, left and right, before and after), it is merely for convenience of retouching
The technical solution of the utility model is stated, rather than the technical characteristic of indication or suggestion meaning must have a particular orientation, with spy
Fixed orientation construction and operation, therefore should not be understood as limiting the present invention.
In the utility model, " several " are meant that one or more, and the meaning of " plurality " is two or more, " big
In ", " being less than ", " being more than " etc. be interpreted as not including this number；" more than ", " following ", " within " etc. be interpreted as including this number.At this
In the description of utility model, if there is being described to " first ", " second " be only used for for the purpose of distinguishing technical characteristic, and cannot understand
For indication or suggestion relative importance or implicitly indicates the quantity of indicated technical characteristic or implicitly indicate indicated
The precedence relationship of technical characteristic.
In the utility model, unless otherwise restricted clearly, the words such as " setting ", " installation ", " connection " should do broad sense reason
Solution, for example, it may be connected directly, it can also be indirectly connected through an intermediary；It may be a fixed connection, be also possible to removable
Connection is unloaded, can also be integrated molding；It can be mechanical connection, be also possible to be electrically connected or can communicate with each other；It can be two
The interaction relationship of connection or two elements inside a element.Skilled artisan can be with combination technology scheme
Particular content rationally determine the concrete meaning of above-mentioned word in the present invention.
Referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, the embodiments of the present invention provide a kind of battery
Bottom plate structure, including top layer sealing plate 1, bottom sealing plate 2 and supporting frame 3, supporting frame 3 include peripheral frame and/or middle part
Frame, the top layer sealing plate 1 and/or the bottom sealing plate 2 are equipped with welding slot position 4, and the top layer sealing plate 1 is sealed with the bottom
Plate 2 welds at the welding slot position 4, and the supporting frame 3 is with the top layer sealing plate 1 and/or the bottom sealing plate 2 described
It welds and is welded at slot position 4, form several enclosure spaces 5 between the top layer sealing plate 1 and the bottom sealing plate 2.Weld slot position 4 one
Aspect for top layer sealing plate 1 and bottom sealing plate 2 and supporting frame 3 and the top layer sealing plate 1 and/or the bottom sealing plate 2 into
On the other hand contraposition when row welding also can improve welding box body process by adjusting parameters such as the position of weld seam and weldering width
The problem on deformation of middle generation.Wherein, the volume of enclosure space 5 can be according to bottom sealing plate 2 and/or the welding groove of top layer sealing plate 1
Position 4, plate thickness and plate size are adjusted.
By the innovation of the technical program, the same of both cabinet intensity, battery case carrying electricity performance can be realized simultaneously
Step is promoted, and further increases the safety and volume energy density of entire battery system.Unique layer structure design simultaneously, solution
The problem of serious welding deformation of common extrudate structure bring of having determined and relatively fixed type chamber distance, reserved by active
It welds the distance between slot position 4 and flexible and changeable top layer sealing plate 1, bottom sealing plate 2 to adjust, is active control deflection and cabinet
Base plate thickness distance provides possibility.
In certain embodiments, referring to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, the top layer sealing plate 1 and/or
The bottom sealing plate 2 is equipped with welding slot position 4, and electric resistance welding, stirring can be used in top layer sealing plate 1, bottom sealing plate 2 and supporting frame 3
The modes such as friction welding (FW) are welded, preferably, the bottom sealing plate 2 is smooth, the top layer sealing plate 1 is equipped with welding slot position 4,
The top layer sealing plate 1 is welded at the welding slot position 4 by agitating friction with the bottom sealing plate 2 to be connected.Pass through agitating friction
Plumb joint heat affected area microscopic structure changes the relatively low welding form feature of low residual stress, is substituted by above structure conventional
Welding form can improve the problem on deformation generated during welding box body.
In certain embodiments, referring to fig. 2, Fig. 3, Fig. 4, Fig. 5, in order to facilitate supporting frame 3 and the top layer sealing plate 1
And/or the bottom sealing plate 2 welds, the supporting frame 3 is equipped with support along 6, the support along 6 with the top layer sealing plate 1 and/or
The bottom sealing plate 2 is welded by agitating friction and is connected.When holding in the palm along 6 for being welded with bottom sealing plate 2 and top layer sealing plate 1
Thawing substrate when contraposition and offer welding controls welding deformation convenient for improving whole weld strength.
Wherein, the arrangement mode of enclosure space 5 is according to parts pair such as battery modules, the high voltage distribution boxes held in battery case
It should be arranged, such as, but not limited to following form, multiple enclosure spaces 5 are along straight line or curved arrangement in several horizontally-arranged or vertical
Row, referring to Fig. 1, multiple enclosure spaces 5 along it is arranged in a straight line be in two horizontally-arranged, referring to Fig. 6, the multiple enclosure spaces 5 are along straight
Line arrangement is horizontally-arranged in four.
In certain embodiments, referring to Fig. 5, several reinforcing ribs are equipped in the inside of enclosure space 5 on the bottom sealing plate 2
Structure 7, for improving the intensity of bottom sealing plate 2.
In certain embodiments, reinforcing rib structure 7 can be combined by changing depth and shape with top layer sealing plate 1, every
Go out multiple enclosure spaces 5 absolutely, to selectively play the role of enhancing bottom load-bearing according to the load-bearing conditions of entire cabinet.
In certain embodiments, enclosure space 5 is hollow.
In certain embodiments, filler is equipped in all or part of enclosure space 5.
In certain embodiments, referring to Fig. 5, filler selects polyurethane material, can select to be filled into the welding process
Enter enclosure space 5, is scraped used in bottom, bottom stone hits etc. under bad working environments the intensity for reinforcing entire bottom plate.
In certain embodiments, referring to the top of all or part of enclosure space 5 of Fig. 1, Fig. 2, Fig. 3, Fig. 6, Fig. 7, Fig. 8
Layer sealing plate 1 is equipped with through-hole 8.Filler selects one of polyurethane material, silica gel, butane rubber or a variety of, can pass through
Multiple through-holes 8 are filled to enclosure space 5, and compared to other embodiments, the present embodiment is more convenient for controlling the filling of filler
Position, distribution and packing volume.
Certain above-described embodiment, which can cooperate, to be used together, and can be done according to different load-bearing, the different cabinets of wheelbase, structure
It adjusts out, lift structure versatility, the convenience of flexibility and technological operation.
The embodiments of the present invention additionally provide a kind of battery case, including battery case bottom described in any of the above embodiment
Hardened structure.
The embodiments of the present invention additionally provide a kind of electric vehicle, including battery case described in any of the above embodiment.
Certainly, the invention is not limited to above embodiment, and those skilled in the art are without prejudice to originally
Equivalent deformation or replacement can be also made under the premise of utility model spirit, these equivalent variation or replacement are all contained in the application
In claim limited range.
Claims (10)
1. a kind of battery bottom plate structure, it is characterised in that: including top layer sealing plate, bottom sealing plate and supporting frame, the top layer
Sealing plate and/or the bottom sealing plate are equipped with welding slot position, and the top layer sealing plate and the bottom sealing plate are in the welding slot position
Place's welding, the supporting frame and the top layer sealing plate and/or the bottom sealing plate weld at the welding slot position, the top
Several enclosure spaces are formed between layer sealing plate and the bottom sealing plate.
2. battery bottom plate structure according to claim 1, it is characterised in that: the bottom sealing plate is smooth, the top layer
Sealing plate is equipped with welding slot position, and the top layer sealing plate and the bottom sealing plate, which are welded at the welding slot position by agitating friction, to be connected
It connects.
3. battery bottom plate structure according to claim 2, it is characterised in that: the supporting frame is equipped with support edge, institute
It states support and connection is welded by agitating friction along with the top layer sealing plate and/or the bottom sealing plate.
4. battery bottom plate structure according to claim 3, it is characterised in that: multiple enclosure spaces are along straight line or song
Line arrangement is in several horizontally-arranged or tandem.
5. battery bottom plate structure according to claim 2, it is characterised in that: in enclosure space on the bottom sealing plate
Inside is equipped with several reinforcing rib structures.
6. battery bottom plate structure according to any one of claims 1 to 5, it is characterised in that: described in all or part
Filler is equipped in enclosure space.
7. battery bottom plate structure according to claim 6, it is characterised in that: the top of all or part of enclosure space
Layer sealing plate is equipped with through-hole.
8. battery bottom plate structure according to claim 7, it is characterised in that: the filler include polyurethane material,
One of silica gel, butane rubber are a variety of.
9. a kind of battery case, it is characterised in that: including battery bottom plate structure according to any one of claims 1 to 8.
10. a kind of electric vehicle, it is characterised in that: including battery case as claimed in claim 9.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920032994.3U CN209534724U (en) | 2019-01-08 | 2019-01-08 | Battery bottom plate structure, battery case and electric vehicle |
| PCT/CN2019/093470 WO2020143194A1 (en) | 2019-01-08 | 2019-06-28 | Battery pack bottom plate structure, battery pack, and electric vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920032994.3U CN209534724U (en) | 2019-01-08 | 2019-01-08 | Battery bottom plate structure, battery case and electric vehicle |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209534724U true CN209534724U (en) | 2019-10-25 |
Family
ID=68269017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920032994.3U Active CN209534724U (en) | 2019-01-08 | 2019-01-08 | Battery bottom plate structure, battery case and electric vehicle |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN209534724U (en) |
| WO (1) | WO2020143194A1 (en) |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102163735B (en) * | 2010-02-15 | 2014-03-12 | 夏普株式会社 | Secondary battery, solar power system, wind generator system and vehicle and manufacture method of secondary battery |
| CN102319953A (en) * | 2011-06-14 | 2012-01-18 | 兰州理工大学 | Friction stir spot welding method of magnesium alloy steel keyless hole |
| JP6236852B2 (en) * | 2013-04-19 | 2017-11-29 | 新日鐵住金株式会社 | Laser welding method and welded joint |
| CN103934584B (en) * | 2014-03-13 | 2016-03-23 | 哈尔滨工业大学 | Friction stir welding method is assisted in a kind of soldering being suitable for For Dissimilar Materials Aluminium overlap joint |
-
2019
- 2019-01-08 CN CN201920032994.3U patent/CN209534724U/en active Active
- 2019-06-28 WO PCT/CN2019/093470 patent/WO2020143194A1/en active Application Filing
Also Published As
| Publication number | Publication date |
|---|---|
| WO2020143194A1 (en) | 2020-07-16 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: ZHAOQING XIAOPENG AUTOMOBILE Co.,Ltd. Assignor: GUANGZHOU XPENG AUTOMOBILE TECHNOLOGY Co.,Ltd. Contract record no.: X2020440000168 Denomination of utility model: Bottom plate structure of battery box, battery box and electric vehicle Granted publication date: 20191025 License type: Common License Record date: 20210104 |
|
| EE01 | Entry into force of recordation of patent licensing contract |