CN108878703A - A kind of battery pack structure of new-energy automobile - Google Patents
A kind of battery pack structure of new-energy automobile Download PDFInfo
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- CN108878703A CN108878703A CN201810572691.0A CN201810572691A CN108878703A CN 108878703 A CN108878703 A CN 108878703A CN 201810572691 A CN201810572691 A CN 201810572691A CN 108878703 A CN108878703 A CN 108878703A
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- main frame
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- energy automobile
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- 230000003014 reinforcing effect Effects 0.000 claims description 18
- 238000013461 design Methods 0.000 abstract description 11
- 238000005336 cracking Methods 0.000 abstract description 7
- 230000002159 abnormal effect Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 9
- 238000011161 development Methods 0.000 description 7
- 238000010586 diagram Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 4
- 230000002708 enhancing effect Effects 0.000 description 3
- 230000001965 increasing effect Effects 0.000 description 3
- 208000020442 loss of weight Diseases 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 239000000446 fuel Substances 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 210000003205 muscle Anatomy 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000013433 optimization analysis Methods 0.000 description 2
- 238000012827 research and development Methods 0.000 description 2
- 238000012546 transfer Methods 0.000 description 2
- 235000006508 Nelumbo nucifera Nutrition 0.000 description 1
- 240000002853 Nelumbo nucifera Species 0.000 description 1
- 235000006510 Nelumbo pentapetala Nutrition 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000002360 explosive Substances 0.000 description 1
- 230000008595 infiltration Effects 0.000 description 1
- 238000001764 infiltration Methods 0.000 description 1
- 239000003595 mist Substances 0.000 description 1
- 230000001737 promoting effect Effects 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 210000002435 tendon Anatomy 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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
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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
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/61—Types of temperature control
- H01M10/613—Cooling or keeping cold
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/62—Heating or cooling; Temperature control specially adapted for specific applications
- H01M10/625—Vehicles
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/60—Heating or cooling; Temperature control
- H01M10/65—Means for temperature control structurally associated with the cells
- H01M10/655—Solid structures for heat exchange or heat conduction
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M2220/00—Batteries for particular applications
- H01M2220/20—Batteries in motive systems, e.g. vehicle, ship, plane
-
- 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)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Battery Mounting, Suspending (AREA)
- Arrangement Or Mounting Of Propulsion Units For Vehicles (AREA)
Abstract
The present invention relates to a kind of battery pack structure of new-energy automobile, including modular upper housing, main frame and lower case, the upper housing, main frame and lower case are sealed connected together to form battery inclusion cavity with dismountable connection type；The ontology of the main frame is closed loop configuration, and a stringer and multiple crossbeams are provided in the closed loop configuration, and the stringer and each crossbeam are connected, and is provided with mounting hole on the stringer and each crossbeam to install battery modules；Multiple fixation holes are respectively arranged at left and right sides of the main frame ontology to cooperate with fixation hole corresponding on vehicle right and left stringer, the front end of the main frame ontology is provided with front end connecting hole to connect with battery front carriage, and the rear end of the main frame ontology is provided with rear end connecting hole to connect with rear floor crossmember.It is poor to efficiently solve the problems, such as that existing battery pack structure generates the reliabilities such as resonance abnormal sound and crucial connector cracking in use for three modularized designs of the invention, connection and reasonable arrangement.
Description
Technical field
The invention belongs to technical field of new energy, and in particular to a kind of battery pack structure of new-energy automobile.
Background technique
With the rapid development of the automotive industry, domestic automobile ownership increases sharply, and it is existing non-renewable to accelerate the world
The consumption of resource, while emission also results in huge atmosphere pollution in vehicle traveling process, such as the mist got worse
The atmosphere polluting problems such as haze.In order to alleviate the pressure of current non-renewable resources and atmospheric environment, national and each auto producer
Family all attaches great importance to the research and development of the new-energy automobiles such as pure electric automobile and hybrid vehicle.Wherein pure electric automobile is new energy
One of developing direction of automobile, new-energy automobile, as power output, store electric energy as electric car row using battery pack
The power resources sailed, therefore electrokinetic cell system is the critical component of new-energy automobile research and development.The battery pack of electric car needs
A certain number of battery modules are set, to guarantee required power input and traveling supply voltage during electric automobile during traveling
It is required that.
During electric automobile during traveling, battery pack ontology inevitably will receive to be carried from external vibration and impact
Lotus.Each battery modules and component in battery pack are mounted in battery pack housing, in order to ensure power in driving process
The design of the reliability of input, battery pack structure needs to avoid resonance caused by extraneous vibration and shock loading and durable cracking
Problem.
The design of existing battery pack structure is usually weaker, and intensity and toughness performance is poor, resistance in use
The ability of vibration and impact is poor, is easy to generate resonance abnormal sound and problem of Cracking with vehicle body, battery pack is caused to connect with vehicle body
Sheet metal component leads to the problem of cracking equal strength, influences automobile reliability.
In order to promote the protective effect to battery pack ontology, the modularization of battery pack design is formed, common method has at present：
The material for changing key component is thick, or increases reinforcer at the structure being affected to battery pack ontology.These improved methods
There is its shortcoming：On the one hand complete vehicle weight is increased, is unfavorable for the lightweight of vehicle body；On the other hand it also will increase the system of bicycle
Cause this.
Therefore, how a kind of better battery pack structure, the more efficiently intensity for promoting battery pack ontology, to keep away are provided
Exempt from electric car and occur abnormal sound resonance during traveling, NVH and the durable phenomenon such as cracking are that prior art needs solve
Problem.
Summary of the invention
The present invention provides a kind of battery pack structures of new-energy automobile, efficiently solve existing battery pack structure and are using
It is poor that the reliabilities such as resonance abnormal sound and crucial connector cracking are led to the problem of in the process, avoid electric car in driving process
In, battery pack ontology and vehicle body generate the noise problems such as resonance abnormal sound；Avoid battery pack ontology and vehicle body key junction
Sheet metal component collides equal strength problem.
To achieve the goals above, present invention employs following scheme：
A kind of battery pack structure of new-energy automobile, including modular upper housing, main frame and lower case, the upper housing,
Main frame and lower case are sealed connected together to form battery inclusion cavity with dismountable connection type；
The ontology of the main frame is closed loop configuration, and a stringer and multiple crossbeams, the stringer are provided in the closed loop configuration
It is connected with each crossbeam, is provided with mounting hole on the stringer and each crossbeam to install battery modules；The main frame ontology
The left and right sides be respectively arranged with multiple fixation holes with fixation hole corresponding on vehicle right and left stringer cooperate, the main frame sheet
The front end of body is provided with front end connecting hole to connect with battery front carriage, and the rear end of the main frame ontology is provided with rear end company
Floor crossmember connects after meeting Kong Yiyu.
Further, multiple fixing lug boss, the fixation hole setting are respectively arranged at left and right sides of the main frame ontology
In corresponding fixing lug boss.
Further, the front end of the main frame ontology is extended with forward a bulge-structure, and the front end connecting hole setting exists
On the connection boss of the left and right sides of the bulge-structure.
Further, the rear end of the main frame ontology has upwardly extended a supporting structure, and the rear end connecting hole setting exists
On the connection boss of the supporting structure.
Further, there are six the fixing lug boss, the main frame ontology each side three；The front end connecting hole
There are two, the bulge-structure each side one be symmetrical arranged；There are three the rear end connecting holes, left and right to be evenly distributed with
On the supporting structure.
Further, there are three the crossbeams, according to the course continuation mileage size for the automobile that vehicle market orientation determines, optimization three
The location layout of a crossbeam, it is reasonable to arrange battery pack ontology mould group.
Further, multiple lightening holes are machined on each crossbeam.
Further, the cross section of the stringer, in the case where not influencing battery pack internal wiring harness requirement, as far as possible
Keep maximum.
Further, the cross section of the stringer is U-typed or "Ji" type or " mouth " font.
Further, the closed loop configuration of the main frame ontology is monoblock type closed loop configuration.
Further, respectively along front and back to a plurality of reinforcing rib is arranged with, every is reinforced for the top surface left and right ends of the upper housing
Muscle is in control to arrangement.
Further, the bottom surface front left and right ends of the lower case are respectively along front and back to being arranged with a plurality of reinforcing rib, and every
For reinforcing rib in left and right to arrangement, the bottom surface rear portion of the lower case is machined with reinforcing rib of a plurality of front and back to arrangement.
The battery pack structure of the new-energy automobile has following beneficial effect：
（1）In the present invention, main frame separates battery modules, forms better heat-dissipating space, while further enhancing battery pack
The rigidity of ontology；The tie point of reasonable Arrangement battery pack and vehicle finds load optimum transfer path, the closed loop configuration of main frame
The loop of power is formed, the load that battery pack is subject to more reasonably is decomposed.
（2）Battery pack is divided into three module designs, i.e. battery pack upper housing, battery pack main frame and battery pack by the present invention
Lower case；Three forms a closing battery packet frame structure, and vehicle factor can be according to bus location, and very easily setting is electric
The modulus of pond group, is formed simultaneously the modularization assembling of battery pack, and such design method can not only save development cost, moreover it is possible to big
The big battery pack development cycle for reducing new energy vehicle, improve product competitiveness.
（3）Structure as the present invention is fully sealed can preferably protect battery module, prevent because of close ground, and
There is the case where battery modules infiltration, it is ensured that the rock-steady structure of battery pack lower case.
（4）In the present invention, battery pack is moulded in the shape of a " convex ", and battery pack can be greatly improved very much in white body
Underfloor arrangement space, the reasonable layout of "convex" shaped periphery tie point can also rise in the operating condition for considering passenger's actual travel
To the effect evading battery pack and colliding with；Structure of the invention is simpler simultaneously, easy for installation.
（5）Battery pack structure in the present invention has fully considered the needs of loss of weight, digs by CAE the Topology Optimization Analysis
Lightening hole can improve installation in the case where not changing the arrangement of battery pack and not increasing bracket material thickness to greatest extent
Rigidity at point reduces complete vehicle weight, improves the fuel economy of vehicle.
Detailed description of the invention
Fig. 1：The overall structure diagram of new energy car battery pack arrangement in embodiment of the present invention；
Fig. 2：The explosive view of new energy car battery pack arrangement in embodiment of the present invention；
Fig. 3：The structural schematic diagram of battery pack main frame in embodiment of the present invention.
Description of symbols：
1-upper housing；11-upper housing reinforcing ribs；2-main frames；21-crossbeams；22-stringers；23-fixation holes；24-is preceding
Hold connecting hole；25-rear end connecting holes；3-lower cases；31-lower case reinforcing ribs.
Specific embodiment
With reference to the accompanying drawing, the present invention will be further described：
Fig. 1 to Fig. 3 shows the specific embodiment of the battery pack structure of new-energy automobile of the present invention.Fig. 1 is present embodiment
The structural schematic diagram of middle new energy car battery pack arrangement；Fig. 2 is the quick-fried of new energy car battery pack arrangement in present embodiment
Fried figure；Fig. 3 is the structural schematic diagram of battery pack main frame in present embodiment.
As shown in Figure 1 to Figure 3, the battery pack structure of the new-energy automobile in present embodiment, including modular upper casing
Body 1, main frame 2 and lower case 3, upper housing 1, main frame 2 and lower case 3 are sealed connected together with dismountable connection type
Form battery inclusion cavity；In the present embodiment, upper housing 1, main frame 2 and lower case 3 are bolted.
The ontology of main frame 2 is closed loop configuration, as shown in figure 3, being provided with a stringer 22 and multiple crossbeams in closed loop configuration
21, stringer 22 and each crossbeam 21 are connected, and in the present embodiment, stringer 22 is connected with each 21 spot welding of crossbeam；The left and right of 2 ontology of main frame
Two sides be respectively arranged with multiple fixation holes 23 with fixation hole corresponding on vehicle right and left stringer cooperate, 2 body of main frame sheet
Front end is provided with front end connecting hole 24 to connect with battery front carriage, and the rear end of 2 ontology of main frame is provided with rear end connecting hole
25 with rear floor crossmember to connect.The stringer 22 of main frame 2 plays the role of fixed battery modules with crossbeam 21 together.Stringer 22
There is mounting hole with design on the mounting surface of crossbeam 21, for installing the fixed battery modules of bolt.The quantity of battery modules can basis
Situation modularization increases.
Preferably, multiple fixing lug boss are respectively arranged at left and right sides of 2 ontology of main frame, fixation hole 23 is arranged opposite
In the fixing lug boss answered.
Preferably, the front end of 2 ontology of main frame is extended with forward a bulge-structure, and front end connecting hole 24 is arranged described convex
On the connection boss for playing the left and right sides of structure.
Preferably, the rear end of 2 ontology of main frame has upwardly extended a supporting structure, and rear end connecting hole 25 is arranged in the branch
On the connection boss of frame structure.
In the present embodiment, there are six fixing lug boss, and 2 ontology of main frame each side three, fixation hole 23 has eight, master
2 ontology of frame each side four, there are two fixation hole, main frames for arrangement in intermediate fixing lug boss on the left of main frame 2 ontology
There are two fixation holes for arrangement in the fixing lug boss of front end on the right side of 2 ontology of frame；There are two front end connecting holes 24, bulge-structure or so
Each one of two sides are symmetrical arranged；There are three rear end connecting holes 25, left and right to be evenly arranged on the supporting structure.
Preferably, multiple lightening holes are machined on each crossbeam 21, reduce the weight of battery pack.It is horizontal in the present embodiment
There are three beams 21, according to the course continuation mileage size for the automobile that vehicle market orientation determines, optimizes the location layout of three crossbeams 21,
Reasonable arrangement battery pack ontology mould group.
Preferably, the cross section of stringer 22 is protected as far as possible in the case where not influencing battery pack internal wiring harness requirement
Hold maximum.
Preferably, the cross section of stringer 22 is U-typed or "Ji" type or " mouth " font.
Preferably, the closed loop configuration of 2 ontology of main frame is monoblock type closed loop configuration.The envelope of monoblock type closed loop configuration formation power
The load that battery pack is subject to more reasonably is decomposed in loop circuit.
Preferably, the top surface left and right ends of upper housing 1 are in a plurality of reinforcing rib, every reinforcing rib is arranged with along front and back respectively
It controls to arrangement.As shown in Fig. 2, specifically, the upper housing reinforcing rib 11 of upper housing 1, left and right has respectively opened up eight upper housings and has added
Strengthening tendons 11, these reinforcing ribs form an enhancing section, enhance the local stiffness of battery pack ontology, are conducive to promote battery pack sheet
The first step mode of body.
Preferably, respectively along front and back to a plurality of reinforcing rib is arranged with, every is reinforced for the bottom surface front left and right ends of lower case 3
For muscle in left and right to arrangement, the bottom surface rear portion of the lower case is machined with reinforcing rib of a plurality of front and back to arrangement.As shown in Fig. 2,
The bottom surface of lower case 3 along front and back to left and right to playing a plurality of lower case reinforcing rib 31 to enhance the structure of battery pack lower case 3
Intensity.
In the present invention, main frame separates battery modules, forms better heat-dissipating space, while further enhancing battery pack
The rigidity of ontology；In order to achieve the purpose that reduce battery pack weight, avoids generating resonance abnormal sound and crucial connector cracking, pass through
The tie point of design optimization, reasonable Arrangement and vehicle, finds load optimum transfer path, and the closed loop configuration of main frame forms power
Loop more reasonably decomposes the load that battery pack is subject to.
Battery pack is divided into three module designs by the present invention, i.e., under battery pack upper housing, battery pack main frame and battery pack
Shell；Three forms a closing battery packet frame structure, and battery can be very easily arranged according to bus location in vehicle factor
The modulus of group, is formed simultaneously the modularization assembling of battery pack, such design method can not only save development cost, moreover it is possible to significantly
Reduce the battery pack development cycle of new energy vehicle.
Structure as the present invention is fully sealed can preferably protect battery module, prevent because of close ground, and occur
The case where battery modules seep water, it is ensured that the rock-steady structure of battery pack lower case.
In the present invention, battery pack is moulded in the shape of a " convex ", battery pack can be greatly improved very much in white body
Arrangement space under plate, the reasonable layout of "convex" shaped periphery tie point can also be played in the operating condition for considering passenger's actual travel
Evade the effect that battery pack is collided with；Structure of the invention is simpler simultaneously, easy for installation.
Battery pack structure in the present invention has fully considered the needs of loss of weight, digs loss of weight by CAE the Topology Optimization Analysis
Hole can improve at installation point to greatest extent in the case where not changing the arrangement of battery pack and not increasing bracket material thickness
Rigidity reduces complete vehicle weight, improves the fuel economy of vehicle.
Automobile batteries pack arrangement in the present invention, battery pack upper-lower casing can be total to platform use, and battery pack uses module
The triple layer designs of change can be suitably used for the vehicle of any number of batteries mould group, can save battery pack development cost to the greatest extent, subtract
The small new energy vehicle development cycle improves product competitiveness.
Above in conjunction with attached drawing, an exemplary description of the invention, it is clear that realization of the invention is not by aforesaid way
Limitation, as long as use the inventive concept and technical scheme of the present invention carry out various improvement, or it is not improved will be of the invention
Conception and technical scheme directly apply to other occasions, be within the scope of the invention.
Claims (10)
1. a kind of battery pack structure of new-energy automobile, which is characterized in that including modular upper housing, main frame and lower casing
Body, the upper housing, main frame and lower case are sealed connected together to form battery inclusion cavity with dismountable connection type；
The ontology of the main frame is closed loop configuration, and a stringer and multiple crossbeams, the stringer are provided in the closed loop configuration
It is connected with each crossbeam, is provided with mounting hole on the stringer and each crossbeam to install battery modules；The main frame ontology
The left and right sides be respectively arranged with multiple fixation holes with fixation hole corresponding on vehicle right and left stringer cooperate, the main frame sheet
The front end of body is provided with front end connecting hole to connect with battery front carriage, and the rear end of the main frame ontology is provided with rear end company
Floor crossmember connects after meeting Kong Yiyu.
2. the battery pack structure of new-energy automobile according to claim 1, which is characterized in that a left side for the main frame ontology
Right two sides are respectively arranged with multiple fixing lug boss, and the fixation hole is arranged in corresponding fixing lug boss.
3. the battery pack structure of new-energy automobile according to claim 1, which is characterized in that before the main frame ontology
End is extended with forward a bulge-structure, and the connection boss of the left and right sides of the bulge-structure is arranged in the front end connecting hole
On.
4. the battery pack structure of new-energy automobile according to claim 1, which is characterized in that after the main frame ontology
End has upwardly extended a supporting structure, and the rear end connecting hole is arranged on the connection boss of the supporting structure.
5. the battery pack structure of new-energy automobile according to claim 1,2,3 or 4, which is characterized in that each crossbeam
On be machined with multiple lightening holes.
6. the battery pack structure of new-energy automobile according to claim 1,2,3 or 4, which is characterized in that the stringer
Cross section is kept maximum as far as possible in the case where not influencing battery pack internal wiring harness requirement.
7. the battery pack structure of new-energy automobile according to any one of claims 1 to 6, which is characterized in that the stringer
Cross section is U-typed or "Ji" type or " mouth " font.
8. the battery pack structure of new-energy automobile according to any one of claims 1 to 7, which is characterized in that the main frame
The closed loop configuration of ontology is monoblock type closed loop configuration.
9. the battery pack structure of new-energy automobile according to any one of claims 1 to 8, which is characterized in that the upper housing
Top surface left and right ends respectively along front and back to being arranged with a plurality of reinforcing rib, every reinforcing rib is in left and right to arrangement.
10. the battery pack structure of new-energy automobile according to any one of claims 1 to 9, which is characterized in that the lower case
Bottom surface front left and right ends respectively along front and back to being arranged with a plurality of reinforcing rib, every reinforcing rib in left and right to arrangement, under described
The bottom surface rear portion of shell is machined with reinforcing rib of a plurality of front and back to arrangement.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572691.0A CN108878703A (en) | 2018-06-06 | 2018-06-06 | A kind of battery pack structure of new-energy automobile |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810572691.0A CN108878703A (en) | 2018-06-06 | 2018-06-06 | A kind of battery pack structure of new-energy automobile |
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| Publication Number | Publication Date |
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| CN108878703A true CN108878703A (en) | 2018-11-23 |
Family
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|---|---|---|---|
| CN201810572691.0A Pending CN108878703A (en) | 2018-06-06 | 2018-06-06 | A kind of battery pack structure of new-energy automobile |
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| CN111564589A (en) * | 2020-05-29 | 2020-08-21 | 蜂巢能源科技有限公司 | Battery pack |
| CN112599914A (en) * | 2020-11-16 | 2021-04-02 | 浙江零跑科技有限公司 | Power battery panel beating lower box assembly structure |
| CN113352865A (en) * | 2020-03-02 | 2021-09-07 | 北京新能源汽车股份有限公司 | Position determination method and device for battery pack mounting hole |
| WO2022174832A1 (en) * | 2021-02-22 | 2022-08-25 | 蜂巢能源科技股份有限公司 | Battery pack lower case and battery pack |
| CN115312955A (en) * | 2022-09-02 | 2022-11-08 | 一汽解放青岛汽车有限公司 | Vertical battery frame assembly and vehicle |
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| WO2022174832A1 (en) * | 2021-02-22 | 2022-08-25 | 蜂巢能源科技股份有限公司 | Battery pack lower case and battery pack |
| CN115312955A (en) * | 2022-09-02 | 2022-11-08 | 一汽解放青岛汽车有限公司 | Vertical battery frame assembly and vehicle |
| CN115312955B (en) * | 2022-09-02 | 2024-04-09 | 一汽解放青岛汽车有限公司 | Vertical storage battery frame assembly and vehicle |
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Application publication date: 20181123 |