CN207993914U - A kind of aluminium section bar and the battery box body using the aluminium section bar - Google Patents
A kind of aluminium section bar and the battery box body using the aluminium section bar Download PDFInfo
- Publication number
- CN207993914U CN207993914U CN201820006990.3U CN201820006990U CN207993914U CN 207993914 U CN207993914 U CN 207993914U CN 201820006990 U CN201820006990 U CN 201820006990U CN 207993914 U CN207993914 U CN 207993914U
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- CN
- China
- Prior art keywords
- section bar
- aluminium section
- mounting groove
- box body
- battery box
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- 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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- Sealing Battery Cases Or Jackets (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model is related to the battery box bodies of a kind of aluminium section bar and the use aluminium section bar.Battery box body includes the side plate made of aluminium section bar, side plate is a kind of hollow vertical matrix, vertical matrix includes top sealing structure, midfoot support structure and bottom welding structure, top sealing structure is equipped with mounting groove, and the sealing strip for gap between seal case and case lid is equipped in mounting groove.Advantageous effect：The side plate of the battery box body of the utility model uses hollow aluminium section bar, not only light weight and also have excellent heat preservation and insulation, it can be used as the sealing fit portion coordinated with case lid at the top of aluminium section bar, and mounting groove is arranged in the top of side plate aluminium section bar, sealing strip is arranged inside, so that the sealing of babinet and case lid is tighter, the sealing to further increase babinet is heat-insulated and heat-insulating property.
Description
Technical field
The utility model is related to the battery box bodies of a kind of aluminium section bar and the use aluminium section bar.
Background technology
With the rise, development and technological progress of new-energy automobile industry, public subsidies policy and energy density threshold
It is continuously improved therewith, light-weight design has become the important indicator for weighing new energy car battery system.Battery case is as dynamic
Weight bearing in power battery system, security protection key structure, lightweight demand is also higher and higher.
The existing universal weight of steel plate metal plate welding casing is big, cannot be satisfied the requirement of energy density.The cast aluminium case newly risen
Upgrading products of the body as steel plate metal plate welding casing also have its drawback, such as Authorization Notice No. is 205582997 U of CN, specially
A kind of utility model patent of the entitled cast aluminium babinet for new energy car battery of profit.It is limited to aluminium intensity, cast aluminium wall
Thickness needs to reach 1.5 ~ 2 times of steel plate material thickness, and same babinet could obtain comparable structural strength, therefore loss of weight amplitude has very much
Limit.Meanwhile aluminium thermal conductivity is higher, heat transfer is fast, easily leads to inside battery case that summer heat, winter are cold, and heat insulating effect is poor, unfavorable
In internal cell practicality.
Utility model content
The purpose of this utility model is to provide a kind of light weight, the aluminium section bar that intensity is high and heat-proof quality is excellent；This reality
It is also resided in novel purpose and a kind of battery box body using above-mentioned aluminium section bar is provided.
To achieve the above object, the aluminium section bar of the utility model adopts the following technical scheme that：
Technical solution 1：Aluminium section bar includes hollow vertical matrix, and vertical matrix top is equipped with the peace for installing sealing strip
Tankage.
Advantageous effect：The aluminium section bar of the utility model uses hollow structure, the cavity at middle part to form thermal insulation layer, have heat-insulated
The effect of heat preservation；The setting of mounting groove is so that aluminium section bar can play more tight when surrounding the side wall of babinet with case lid sealing cooperation
Close sealing heat-blocking action.
Technical solution 2：On the basis of technical solution 1, vertical matrix includes support construction and top sealing structure, described
Mounting groove is arranged in the sealing structure of top.
Technical solution 3：On the basis of technical solution 2, turning over for case lid is equipped on the outside of the end of top sealing structure
Along overlapped recessing groove.The setting of recessing groove is so that surfacing when coordinating with top sealing structure that turns edge, the cooperation of case lid are tight
It is close.
Technical solution 4：On the basis of technical solution 3, the tip inside of top sealing structure be equipped with it is protruding upward so as to
The convex edge of supporting box cover, convex edge constitute the side cell wall of the mounting groove.The setting of convex edge cannot be only used for shoring case lid, and
Can be that sealing strip sets up a suitable deformation space so that sealing strip will not be squeezed bad.
Technical solution 5：On the basis of technical solution 4, the recessing groove is connected to mounting groove.
Technical solution 6：On the basis of technical solution 1-5 any one, in the sealing structure of top, in the lower section of mounting groove
It is additionally provided with the hollow cavity structure for accommodating screw.Facilitate and sealing strip is pressed using screw.
Technical solution 7：On the basis of technical solution 1-5 any one, the thickness of support construction is less than top sealing knot
The thickness of structure.Because support construction is mainly used for constituting the side plate of babinet, top sealing structure then is used to constitute the upper edge of babinet,
The thickness of support construction is smaller to vacate more spaces for accommodating more batteries, and then the energy for improving battery is close
Degree.
Technical solution 8：On the basis of technical solution 7, support construction includes doubling plate and is connected between doubling plate
Diagonal bar and straight muscle, diagonal bar and straight muscle the chamber of multiple rectangles and triangle is surrounded with doubling plate.Not only structural strength it is high but also
Light weight has good heat-proof quality.
Technical solution 9：On the basis of technical solution 1-5 any one, support construction lower part is equipped with for being used as bottom plate
The bottom welding structure of support and connection when welding.Bottom plate is supported to reinforce the bearing strength of babinet.
Technical solution 10：On the basis of technical solution 9, the welded front end of bottom plate is equipped with for for bottom plate, overlapped
Stage portion.Facilitate the overlap joint of bottom plate so that it is concordant that bottom plate with bottom welding structure is welded and fixed rear surface.
The battery box body of the utility model adopts the following technical scheme that：
Technical solution 1：Battery box body includes the side plate made of aluminium section bar, and side plate includes hollow vertical matrix, is erected
It is equipped with mounting groove to matrix top, the sealing strip for gap between seal case and case lid is installed in mounting groove.
Advantageous effect：The side plate of the battery box body of the utility model uses hollow aluminium section bar, not only light weight but also tool
There is excellent heat preservation and insulation, the sealing fit portion coordinated with case lid, and side plate aluminium section bar are can be used as at the top of aluminium section bar
Top be arranged mounting groove, sealing strip is arranged inside so that the sealing of babinet and case lid is tighter, to further increase
The sealing of babinet is heat-insulated and heat-insulating property.
Technical solution 2：On the basis of technical solution 1, vertical matrix includes support construction and top sealing structure, described
Mounting groove is arranged in the sealing structure of top.
Technical solution 3：On the basis of technical solution 2, it is equipped with for for case lid on the outside of the end of top sealing structure
The recessing groove that turns edge that overlapped.The setting of recessing groove makes surfacing when coordinating with top sealing structure that turns edge of case lid, cooperation
Tightly.
Technical solution 4：On the basis of technical solution 3, the tip inside of top sealing structure be equipped with it is protruding upward so as to
The convex edge of cooperation is supported with case lid, convex edge constitutes the side cell wall of the mounting groove.The setting of convex edge cannot be only used for shoring case
Lid, and can be that sealing strip sets up a suitable deformation space, when mounted, the distance for being higher by convex edge is it to sealing strip
The length that itself can be deformed, by the support of convex edge avoid case lid by sealing strip be compressed to beyond its own can elasticity it is extensive
Multiple length so that sealing strip will not be squeezed bad.
Technical solution 5：On the basis of technical solution 4, the recessing groove is connected to mounting groove.
Technical solution 6：On the basis of technical solution 1-5 any one, in the sealing structure of top, in the lower section of mounting groove
It is additionally provided with the hollow cavity structure for accommodating screw.Facilitate and sealing strip is pressed using screw.
Technical solution 7：On the basis of technical solution 1-5 any one, the thickness of support construction is less than top sealing knot
The thickness of structure has the accommodation space of bigger so as to battery box body.Because support construction is mainly used for constituting the side plate of babinet,
Top sealing structure then is used to constitute the upper edge of babinet, and the thickness of support construction is smaller to vacate more spaces for accommodating
More batteries, and then improve the energy density of battery.
Technical solution 8：On the basis of technical solution 7, support construction includes doubling plate and is connected between doubling plate
Diagonal bar and straight muscle, diagonal bar and straight muscle the chamber of multiple rectangles and triangle is surrounded with doubling plate.Not only structural strength it is high but also
Light weight has good heat-proof quality.
Technical solution 9：On the basis of technical solution 1-5 any one, support construction lower part is equipped with for being used as bottom plate
The bottom welding structure of support and connection when welding.Bottom plate is supported to reinforce the bearing strength of babinet.
Technical solution 10：On the basis of technical solution 9, the welded front end of bottom plate is equipped with for for bottom plate, overlapped
Stage portion.Facilitate the overlap joint of bottom plate so that it is concordant that bottom plate with bottom welding structure is welded and fixed rear surface.
Description of the drawings
Fig. 1 is the structural schematic diagram of the battery box body of the utility model；
Fig. 2 is the schematic cross-section of the side plate in Fig. 1；
Fig. 3 is the structural schematic diagram of the aluminium section bar for the part for forming Fig. 2 latus inframediums；
Fig. 4 is status diagram of the side plate of Fig. 2 when being used cooperatively with case lid；
Fig. 5 is the partial enlarged view at A in Fig. 4；
Fig. 6 is the structural schematic diagram of the lifting lug in Fig. 1；
Fig. 7 is the cross-sectional view of bottom beam in Fig. 1；
Fig. 8 is the schematic cross-section of bottom plate；
In figure：1- side plates, the tops 101- sealing structure, 11- inner seal position limiting structures, 12- outer side seal notches, 13-
Sealing cavity structure, 14- case lids, 15- elastic sealing strips, 102- support constructions, 21- loss of weight chambers, 22- diagonal bars, the straight muscle of 23-,
The bottoms 103- welding structure；2- lifting lugs, 201- extrudates, 202- reinforce steel bushing；3- bottom beams, 301- top bars portion, 302-
Stepped down part；4- bottom plates, 401- cavitys；5- longerons；6- supporting racks；7- fastening bolts.
Specific implementation mode
The embodiment of the utility model is described further below in conjunction with the accompanying drawings.
The specific embodiment of the battery box body of the utility model, as shown in Figure 1, Figure 4 and Figure 5, babinet include babinet master
Body portion and case lid 14, babinet main part include the frame structure of four side plates 1 composition, pass through agitating friction between side plate 1
Weldering, CMT welderings etc. are welded as a whole, as shown in Fig. 2, side plate 1 is to heat the hollow aluminium section bar of aluminium extrusion Process Production, including top
Top sealing structure 101, support construction 102 and bottom welding structure 103, sealing structure 101 thickness in top compares support construction
102 is big, because top sealing structure 101 is mainly used for being used cooperatively with case lid 14, and is provided in top sealing structure 101
The sealing elements such as elastic sealing strip 15, the sidewall sections of 102 main composition babinet of support construction are used to form the side for accommodating battery case
Wall, the volume that thinner thickness can reduce side plate 1 as far as possible occupies, to vacate more spaces for the arrangement of battery component, into
And energy density is improved, bottom welding structure 103 is welded on the support construction 102 of side plate 1 by agitating friction weldering or AMT
On, bottom welding structure 103 constitutes the supporting rack 6 of fixed bottom plate 4, the outer end of lower support structure have step so as to bottom
Plate 4 overlaps rear surface and flushes.
As shown in figure 3, support construction includes two risers, the diagonal bar 22 between two risers and straight muscle 23, surround jointly
Multiple loss of weight chambers 21, the angle of inclination of diagonal bar 22 is larger, straight 23 length of muscle is shorter so that the thickness of support construction is smaller.So that
The aluminium section bar is applied to have the advantages that volume occupies when the place to volume-sensitive such as battery case small.Meanwhile loss of weight chamber 21
Setting yet forms thermal insulation layer, has excellent heat-proof quality.
As shown in figure 4, the aluminium section bar lower end of support construction is welded and fixed with the welded aluminium section bar in bottom, top sealing
Structure coordinates with case lid 14.As shown in figure 5, top sealing structure includes inner seal position limiting structure 11（That is convex edge）, outside it is close
Notch 12, sealing cavity structure 13 are sealed, inner seal position limiting structure 11 passes on left fastening bolt 7 and fixes spring seal strip
15, elastic sealing strip 15 is located at sealing cavity structure 13 upper wall, in the space that inner seal position limiting structure 11 and case lid 14 surround,
Play sealing function.The structure that turns edge of case lid 14 coordinates with outer side seal notch 12 to realize flushing for outer surface, good appearance
It is seamless.
As shown in Figure 1, being equipped with bottom beam 3 between a pair of opposite side plate 1, the both ends of bottom beam 3 are welded relative to side plate 1
Fixed, as shown in fig. 7, bottom beam 3 includes three layers of upper, middle and lower, middle plate is slightly wider than upper and lower plate, to form 301 He of top bar portion
Stepped down part 302, wherein stepped down part 302 are used to overlap with bottom plate 4, and the setting in top bar portion 301 is then internal for convenience
The arrangement of battery component and installation.Upper plate is hollow structure, and top is equipped with fixed bolt hole etc..
As shown in figure 8, bottom plate 4 is the hollow structure with cavity 401, using aluminium section bar, thinner thickness, to improve energy
Metric density.As shown in Figure 1, the centre position vertical with bottom beam 3 is additionally provided with longeron 5, the both ends of longeron 5 respectively with corresponding side
Plate 1 is welded and fixed, and longeron 5, bottom beam 3 and four side plates 1 constitute a frame structure, bone of the frame structure as babinet
Frame plays the role of carrying.Wherein the bottom welding structure 103 of longeron 5, bottom beam 3 and four side plates 1 forms matrix pattern structure,
Four openings of matrix pattern structure are blocked by bottom plate 4, and bottom plate 4 respectively with the downside of bottom welding structure 103, bottom
The stepped down part 302 of beam 3 mutually overlap joint integrates beautiful and intensity to ensure that the bottom of babinet flushes, and lap-joint uses and stirs
It mixes friction welding (FW) or CMT is welded and fixed.
As shown in Figure 1, needing to be welded with multiple lifting lugs 2 also according to lifting on four side plates 1 of babinet, as shown in fig. 6, hanging
Ear 2 includes aluminium section bar matrix and the reinforcement steel bushing 202 on aluminium section bar matrix, and aluminium section bar matrix is using hot melt aluminium extrusion work
The extrudate 201 that skill is process, it is L-shaped, include the connection support portion in the lifting portion on top and lower part, reinforces steel bushing 202
By elastic conjunction on extrudate 201, it is indeformable more than installation torque that connection bolt can be born.Lifting lug 2 passes through stirring
Friction welding (FW) is welded on the lateral surface of side plate 1, and the arrangement of lifting lug 2 can go to be arranged according to the center of gravity of babinet, and quantity can be appropriate
Change.
After the welding assembly for completing babinet, it can be sprayed in insulating moulding coating, with hollow aluminium section bar cavity in the outside of babinet
Air constitutes the thermal insulation layer of babinet, can be effectively improved that aluminium thermal conductivity is high, is unfavorable for insulation etc. and be led in new energy battery case
The undesirable feature of domain application.Side plate 1, the 4 inner-wall spraying insulated paint of bottom plate of babinet improve insulation safety, can be effectively improved aluminium
The undesirable feature in the application of new energy battery case field such as material easy conductive and the bad easy electric leakage of internal cell insulating protection.
The battery box body of the utility model is when in use：Case lid 14 is also formed using hollow aluminum shape extrusion, case lid 14
It can form that a leakproofness is good and heat-insulated good lightweight babinet after being connected with the main part of babinet, and its intensity is also full
Sufficient use demand, energy density is larger, and the proper temperature under the very hot and extremely cold environment such as summer in winter in energy moment guard box body makes
Obtaining battery has preferable efficiency for charge-discharge.
In other embodiments：The section of the aluminium section bar of the side plate of babinet, bottom plate and lifting lug is also not necessarily limited to schematic structure,
The hollow structure in other sections can be used.
The specific embodiment of the aluminium section bar of the utility model with the side plate of above-mentioned battery box body there is top sealing to tie
Structure is identical with the structure of the aluminium section bar of support construction, repeats no more, but the concrete application field of the aluminium section bar be not limited to it is above-mentioned
It in the structure of battery case, is equally applicable on other kinds of battery case, or to be applied to other quick to volume-sensitive, weight
Sense, and need on sufficient intensity and the babinet or cabinet of heat-proof quality.
Claims (16)
1. a kind of aluminium section bar, characterized in that including hollow vertical matrix, vertical matrix top is equipped with for installing sealing strip
Mounting groove, vertical matrix include support construction and top sealing structure, and the mounting groove is arranged in the sealing structure of top, top
It is equipped on the outside of the end of sealing structure for the recessing groove that turns edge that overlapped for case lid.
2. aluminium section bar according to claim 1, characterized in that the tip inside of top sealing structure be equipped with it is protruding upward with
Just the convex edge of supporting box cover, convex edge constitute the side cell wall of the mounting groove.
3. aluminium section bar according to claim 2, characterized in that the recessing groove is connected to mounting groove.
4. according to the aluminium section bar described in claim 1-3 any one, characterized in that in the sealing structure of top, in mounting groove
Lower section is additionally provided with the hollow cavity structure for accommodating screw.
5. according to the aluminium section bar described in claim 1-3 any one, characterized in that the thickness of support construction is sealed less than top
The thickness of structure.
6. aluminium section bar according to claim 5, characterized in that support construction include doubling plate and be connected to doubling plate it
Between diagonal bar and straight muscle, diagonal bar and straight muscle the chamber of multiple rectangles and triangle is surrounded with doubling plate.
7. according to the aluminium section bar described in claim 1-3 any one, characterized in that support construction lower part is equipped with for being used as bottom
The bottom welding structure of support and connection when plate welds.
8. aluminium section bar according to claim 7, characterized in that the welded front end of bottom plate is equipped with for being overlapped for bottom plate
Stage portion.
9. battery box body, characterized in that including the side plate made of aluminium section bar, side plate surrounds a closed space of circumferential direction,
Side plate includes hollow vertical matrix, and vertical matrix top is equipped with mounting groove, is equipped with for seal case and case in mounting groove
The sealing strip in gap between lid, vertical matrix include support construction and top sealing structure, and the mounting groove setting is close at top
It is equipped on seal structure, on the outside of the end of top sealing structure for the recessing groove that turns edge that overlapped for case lid.
10. battery box body according to claim 9, characterized in that the tip inside of top sealing structure is equipped with upward
For protrusion to support the convex edge of cooperation with case lid, convex edge constitutes the side cell wall of the mounting groove.
11. battery box body according to claim 10, characterized in that the recessing groove is connected to mounting groove.
12. according to the battery box body described in claim 9-11 any one, characterized in that in the sealing structure of top, Yu An
The hollow cavity structure for accommodating screw is additionally provided with below tankage.
13. according to the battery box body described in claim 9-11 any one, characterized in that the thickness of support construction is less than top
The thickness of part sealing structure has the accommodation space of bigger so as to battery box body.
14. battery box body according to claim 13, characterized in that support construction includes doubling plate and is connected to double
Diagonal bar between laminate and straight muscle, diagonal bar and straight muscle surround the chamber of multiple rectangles and triangle with doubling plate.
15. according to the battery box body described in claim 9-11 any one, characterized in that support construction lower part is equipped with and is used for
The bottom welding structure of support and connection when being welded as bottom plate.
16. battery box body according to claim 15, characterized in that the welded front end of bottom plate is equipped with for the bottom of for
Plate overlapped stage portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006990.3U CN207993914U (en) | 2018-01-03 | 2018-01-03 | A kind of aluminium section bar and the battery box body using the aluminium section bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820006990.3U CN207993914U (en) | 2018-01-03 | 2018-01-03 | A kind of aluminium section bar and the battery box body using the aluminium section bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207993914U true CN207993914U (en) | 2018-10-19 |
Family
ID=63819871
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820006990.3U Active CN207993914U (en) | 2018-01-03 | 2018-01-03 | A kind of aluminium section bar and the battery box body using the aluminium section bar |
Country Status (1)
| Country | Link |
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| CN (1) | CN207993914U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3103639A1 (en) * | 2019-11-26 | 2021-05-28 | Renault Sas | Traction battery housing and corresponding assembly method |
| CN113611975A (en) * | 2021-08-26 | 2021-11-05 | 保力新能源科技股份有限公司 | Battery module, battery box and battery pack |
| CN114987902A (en) * | 2022-06-23 | 2022-09-02 | 洛阳富道生物科技有限公司 | Anti-pollution vacuum packaging box of bacterin bottle |
| WO2023116732A1 (en) * | 2021-12-20 | 2023-06-29 | 奥动新能源汽车科技有限公司 | Lower box body of battery box, and battery pack and electric vehicle |
-
2018
- 2018-01-03 CN CN201820006990.3U patent/CN207993914U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR3103639A1 (en) * | 2019-11-26 | 2021-05-28 | Renault Sas | Traction battery housing and corresponding assembly method |
| CN113611975A (en) * | 2021-08-26 | 2021-11-05 | 保力新能源科技股份有限公司 | Battery module, battery box and battery pack |
| CN113611975B (en) * | 2021-08-26 | 2024-03-19 | 保力新能源科技股份有限公司 | Battery module, battery box and battery pack |
| WO2023116732A1 (en) * | 2021-12-20 | 2023-06-29 | 奥动新能源汽车科技有限公司 | Lower box body of battery box, and battery pack and electric vehicle |
| CN114987902A (en) * | 2022-06-23 | 2022-09-02 | 洛阳富道生物科技有限公司 | Anti-pollution vacuum packaging box of bacterin bottle |
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Legal Events
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: Kaibo Energy Technology Co.,Ltd. Address after: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee after: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee after: Kaibo Energy Technology Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: CHINA AVIATION LITHIUM BATTERY RESEARCH INSTITUTE Co.,Ltd. |
|
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20220113 Address after: No.1 Jiangdong Avenue, Jintan District, Changzhou City, Jiangsu Province Patentee after: Zhongchuangxin Aviation Technology Co.,Ltd. Patentee after: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. Address before: No.66, Binhe North Road, high tech Development Zone, Luoyang City, Henan Province Patentee before: CHINA AVIATION LITHIUM BATTERY Co.,Ltd. Patentee before: AVIC Innovation Technology Research Institute (Jiangsu) Co.,Ltd. |