CN107732086A - Battery core mounting structure for battery modules - Google Patents
Battery core mounting structure for battery modules Download PDFInfo
- Publication number
- CN107732086A CN107732086A CN201711206281.6A CN201711206281A CN107732086A CN 107732086 A CN107732086 A CN 107732086A CN 201711206281 A CN201711206281 A CN 201711206281A CN 107732086 A CN107732086 A CN 107732086A
- Authority
- CN
- China
- Prior art keywords
- battery
- collet
- battery core
- frid
- mounting hole
- 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.)
- Withdrawn
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Classifications
-
- 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
- H01M50/256—Carrying devices, e.g. belts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M50/00—Constructional details or processes of manufacture of the non-active parts of electrochemical cells other than fuel cells, e.g. hybrid cells
- H01M50/20—Mountings; Secondary casings or frames; Racks, modules or packs; Suspension devices; Shock absorbers; Transport or carrying devices; Holders
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The present invention relates to a kind of battery core mounting structure for battery modules,The battery pack being arranged on including parallel interval in collet,Including battery core,The battery core is arranged multiple along collet length direction order,The both sides of battery pack are provided with support frame,The edge of support frame is provided with flange,The connection end of support frame and collet is provided with bar shaped frid,Open Side Down and opening is provided with connection frid for bar shaped frid,Flange is fixed on bar-shaped trough board slot bottom upper face,The first mounting hole is provided with bar shaped frid,The second mounting hole is provided with connection frid,Second mounting hole and the first same core of mounting hole hole core,Fastening bolt is connected through the first mounting hole with flange,Connection frid is connected with collet,Box spanner penetrates the second above-mentioned mounting hole and is connected with fastening bolt,Realization is tightened to fastening bolt,Operate extremely convenient,The battery core mounting structure of the battery modules is able to ensure that the strong degree to battery core installation.
Description
Technical field
The present invention relates to new-energy automobile power battery technical field, and in particular to a kind of battery core for battery modules is pacified
Assembling structure.
Background technology
Battery modules are electric automobile " hearts ".Battery modules are for the new energy of for example electric automobile, hybrid electric vehicle
Source transport facility provides the core of power source.It can be understood as battery battery core and is combined through series-parallel system, and
Battery cell monitoring is installed additional to be managed and controlled with managing device (MCN).The structure design of battery modules tends to determine an electricity
The performance and safety of pond case.Its structure must play support, fixed and protective effect to battery battery core.How to meet electricity simultaneously
Whether stream requires, current flow uniformity, how to meet the control to battery battery core temperature, and have and can be powered off during severely subnormal, keeps away
Exempt from chain reaction etc., all will be to judge the good and bad standard of battery modules.
Existing battery modules mainly include battery battery core and support the support frame of battery battery core, in order to ensure battery
The polymer material of the insulating properties of module, existing support frame generally use polystyrene or polyethylene material, and in order to meet
The support strength of battery modules and for example anti-shake structural strength touched, are generally made thick and heavy, then pass through electricity by support frame
Pond module directly sets battery lead plate in the integrally-built both ends of support frame in other words, passes through the lug and electrode at battery battery core both ends
Plate is electrically connected to form the main structures of battery modules.Existing this battery modules generally have following problem：1st, the support of polymer
Framework mutability itself, and positioned at battery modules bottom battery battery core and support frame due to upper cell modular structure
Gravity, the battery module structure of bottom is yielding, so may result in the lug at battery battery core both ends and battery lead plate contacts disorder,
Break down.2nd, the thick and heavy support frame of polymer directly make it that module weight is larger, and such entrucking, which uses, just to be needed more
Powered, power consumption are big.3rd, the thick and heavy support frame volume of polymer is also just big, takes bigger space, is unfavorable for its own
Fitting into battery case and be unfavorable for assembling of the battery case on vehicle.And with the development of electric automobile, manufacturer is to electricity
The pursuit of pond performance is more and more harsher, requirement, requirement, the requirement of lightweight of reduction volume to the good insulation preformance of battery, letter
The requirement increasingly demand of single group dress.How to use light weight, small volume, good insulation preformance and be simply assembled in battery case
As stubborn problem.
The content of the invention
It is an object of the present invention to provide a kind of battery core mounting structure for battery modules, it can be ensured that to the jail of battery core installation
By degree, it is ensured that to the strong degree of battery core installation, realize the insulation between battery core.
To achieve the above object, the technical solution adopted by the present invention is：
The battery pack in collet, the collet are arranged on for the battery core mounting structure of battery modules, including parallel interval
In opening box-like structure, the opening of the collet is provided with lid, and the battery pack includes battery core, and the battery core is along collet
Length direction order is arranged multiple, and the both sides of the battery pack are provided with support frame, between the supported on both sides frame of the battery pack
Tie down screw is provided with, is provided with insulating frame between adjacent battery core, the overall rectangular tubular structure of the insulating frame, isolation
The tube chamber centre position of framework is provided with waffle slab, and the pipe for tie down screw is provided with the side tube wall of the insulating frame
Hole, away from the pore side insulating frame tube wall on be provided with plug and intubation, the plug of adjacent insulating frame is plugged on
In intubation, the edge of support frame as described above is provided with flange, and the connection end of support frame as described above and collet is provided with bar shaped frid, described
Open Side Down and opening is provided with connection frid for bar shaped frid, and the flange is fixed on bar-shaped trough board slot bottom upper face, institute
State and the first mounting hole be provided with bar shaped frid, the second mounting hole is provided with the connection frid, second mounting hole with
The first same core of mounting hole hole core, the fastening bolt are connected through the first mounting hole with flange, and the connection frid is consolidated with collet
Even.
Following characteristics also be present in the present invention：
The overall plate-like structure of support frame as described above, the plate face vertical of support frame as described above, the flange and bar shaped frid
The edge of fitting is provided with strip gab, and the upper end of the fastening bolt through strip gab and is provided with nut.
The both ends of the pore are respectively arranged with insertion pipe and stepped hole, and the insertion pipe of adjacent insulating frame is plugged on step
In the large scale end in hole, the both ends of the insulating frame tube wall are respectively arranged with first, second, third semicircular indentations, described
Second semicircular indentations are arranged between the first, the 3rd semicircular indentations.
Compared with prior art, the technique effect that possesses of the present invention is：Above-mentioned battery core is fixed by support frame, and phase
Insulating frame is provided between adjacent battery core, insulating frame can realize the insulation to adjacent battery core, and support frame is by fastening spiral shell
Bolt is fixed in the first mounting hole on bar shaped frid, and is connected by connecting frid with collet, above-mentioned connection frid
Second mounting hole, box spanner is conveniently penetrated into the second above-mentioned mounting hole and is connected with fastening bolt, is realized to fastening bolt
Tighten, operation is extremely convenient, and the battery core mounting structure of the battery modules is able to ensure that the strong degree to battery core installation.
Brief description of the drawings
Fig. 1 is the structural representation of battery modules；
Fig. 2 is that battery modules remove the structural representation after lid；
Fig. 3 is that battery modules remove the structural representation after cover plate；
Fig. 4 battery modules remove the structural representation after collet；
Fig. 5 is the structural representation of the second insulating frame；
Fig. 6 is the structural representation of insulating frame；
Fig. 7 is the structural representation of support frame；
Fig. 8 is the structural representation of collet；
Fig. 9 is the structural representation of lid；
Figure 10 is the structural representation of heat sink；
Figure 11 is the structural representation of cover plate；
Figure 12 is the structural representation of mounting bracket.
Embodiment
With reference to Fig. 1 to Figure 12, the present invention is further described：
With reference to whole battery modules to this be used for battery modules battery core mounting structure detailed construction and and its
He illustrates tectonic relationship：
Battery modules, including for installing the collet 10 of battery module, the collet 10 are in opening box-like structure, the bottom
The side wall of support 10 is respectively arranged with module negative connection end 11 and module anode connection terminal 12, and the opening of the collet 10 is set
There is lid 20, the battery module includes multiple battery packs be arrangeding in parallel, and the battery pack includes battery core 30, the battery core 30
Arrange multiple along the length direction of collet 10 order, the outermost battery core 30 of battery pack is provided with support frame 40, it is described
Be provided with tie down screw 41 between the supported on both sides frame 40 of battery pack, the tie down screw 41 it is parallel with battery length direction and
Both ends are fixed with supported on both sides frame 40, and electric connecting sheet 32, the electric connecting sheet 32 are provided with the connector lug 31 of the battery core 30
Extend to the both sides of battery pack and electrically connected with the electrical connector 41 on support frame 40；
With reference to shown in Fig. 1 to Fig. 4, the battery pack that above-mentioned battery core 30 is spaced master is fixed on collet 10, and collet 10
On battery pack be provided at both ends with support frame 40, connected between support frame 40 by tie down screw 41, so as to by battery pack
In each battery core 30 connect as one, and then ensure the strong degree fixed to battery core 30, above-mentioned battery pack can be compact steady
Fixed is fixed on collet, can be assembled in compared to existing battery modules light weight, small volume, good insulation preformance and simply
In battery case；
Above-mentioned electric connecting sheet 32 is arranged on the connector lug 31 of battery core 30, and the series connection to each battery core 30 can be achieved, and
And there is extraction electrode piece to be drawn from collet 10, and be connected respectively with module negative connection end 11 and module anode connection terminal 12,
The convenient electrical connection realized to above-mentioned battery core 30.
With reference to shown in Fig. 1 to Fig. 4 and Fig. 6, insulating frame 50, the isolation frame are provided between the adjacent battery core 30
The overall rectangular tubular structure of frame 50, the tube chamber centre position of insulating frame 50 is provided with waffle slab 51, the insulating frame 50
Side tube wall on be provided with pore 52 for tie down screw 41, set on the tube wall of the insulating frame 50 away from the side of pore 52
Plug 53 and intubation 54 are equipped with, the plug 53 of adjacent insulating frame 50 is plugged in intubation 54；
Kept apart between above-mentioned adjacent battery core 30 by insulating frame 50, and between above-mentioned insulating frame 50
Plug 53 be plugged on intubation 54 in so that being connected as an entirety between adjacent battery core 30, by clamping screw 41 one by one
Through in the pore 52 on insulating frame 50, so as to which above-mentioned battery pack is connected as into an entirety, and then ensure whole
The stability that battery core 30 connects, it is ensured that stability of the battery pack in collet 10.
Preferably, the tie down screw 41 is located at insulating frame 50 and is arranged with two in parallel, the both ends point of the pore 52
Insertion pipe 521 and stepped hole 522 are not provided with, and the insertion pipe 521 of adjacent insulating frame 50 is plugged on the large scale of stepped hole 522
In end, the both ends of the tube wall of insulating frame 50 are respectively arranged with first, second, third semicircular indentations 501,502,503, institute
The second semicircular indentations 502 are stated to arrange between the first, the 3rd semicircular indentations 501,503；
The both ends of above-mentioned pore 52 are respectively arranged with insertion pipe 521 and stepped hole 522, and adjacent insulating frame 50 connects
When, the insertion pipe 521 of insulating frame 50 is plugged in the large scale end of stepped hole 522, and then is realized to above-mentioned adjacent isolation
Framework 50 further consolidates connection, and the both ends of the above-mentioned tube wall of insulating frame 50 are respectively arranged with first, second, third semicircle
Breach 501,502,503 is used for accommodating the connector lug 31 of battery core 30, to ensure that the connector lug 31 of battery core 31 can be drawn.
To ensure the connection to every Battery pack group both ends, with reference to shown in Fig. 7, set between support frame as described above 40 and battery core 30
There are the second insulating frame 60, the overall rectangular tubular structure of the second insulating frame 60, the pipe end of the second insulating frame 60 is set
The second waffle slab 61 is equipped with, the second pore for tie down screw 41 is provided with the side tube wall of second insulating frame 60
62, the second plug 63 and the second intubation 64 are provided with the tube wall of the second insulating frame 60 away from the side of the second pore 62,
Second plug 63 of the second insulating frame 60 is plugged in the intubation 54 of insulating frame 50, one end difference of second pore 62
The second insertion pipe 621 and second step hole 622 are provided with, the second insertion pipe 621 of the second insulating frame 60 is plugged on isolation frame
In the large scale end of the stepped hole 522 of frame 50, the insertion pipe 521 of first insulating frame 50 is plugged on the second insulating frame 60
Second step hole 622 large scale end in, the mouth of pipe side tube wall of second insulating frame 60 is provided with first, second,
3rd arc notch 601,602,603, second arc notch 602 cloth between the first, the 3rd arc notch 601,603
Put；
First, second, third above-mentioned arc notch 601,602,603 is used for accommodating the connector lug 31 of battery core 30, with true
Protecting the connector lug 31 of battery core 31 can draw.
Further, to realize that ground battery pack is fixed with the stable of collet 10, the overall plate-like structure of support frame as described above 40,
The edge of support frame as described above 40 is provided with flange 42, and the plate face vertical of support frame as described above 40 is opened in collet 10 and in plate face
Provided with the mounting hole 43 passed through for tie down screw 41, the flange 42 is bonded with the bottom plate of collet 10 and the edge of flange 42 is set
There is strip gab 421, be provided with fastening bolt 44 in the strip gab 421 is connected with collet 10.
Further, the upper end of the battery pack is provided with cover plate 70, and two sides of the cover plate 70 are provided with clamping
Side 72, the both sides of the edge of the insulating frame 60 of the first insulating frame 50 and second are respectively arranged with forms clamping with clamping side 72
First, second card interface 55,65 coordinated；
The above-mentioned lid of cover plate 70 is located at electromagnetism group upper end, and is fastened on the first isolation frame by the clamping side 72 of cover plate 70
It is convenient to realize consolidating to cover plate 70 in first, second card interface 55,65 of the both sides of the edge of the insulating frame 60 of frame 50 and second
It is fixed, it is extremely convenient so as to install, and electric connecting sheet 32 sets waviness, or to be provided with arc convex for the upper end of electric connecting sheet 32
Bar 321, the arc raised line 321 and the cover plate 70 against, it can be ensured that the abutting of electric connecting sheet 32 and the connector lug 31 of battery core 30, from
And ensure the reliability of electrical connection.
To ensure the radiating to battery core 30, the upper face of the cover plate 70 is provided with shelf 110, and the shelf 110 includes
The rectangle frame 111 of the upper face of cover plate 70 is arranged on, parallel interval is provided with two right angles respectively for the both sides of the rectangle frame 111
Triangular plate 112, upper face and side straight flange and rectangle frame 111 of the vertical of modification of right-angled triangle plate 112 in cover plate 70
Outside is fixed, the length direction arrangement of the length direction of the modification of right-angled triangle plate 112 along cover plate 70；
Above-mentioned shelf 110 can be by battery pack and lid 20 every being set as enough heat-dissipating spaces, it is ensured that to battery pack
Radiating effect, and the structure of above-mentioned rectangle frame 111 and modification of right-angled triangle plate 112 is arranged, it is strong can to form stronger support
Degree.
Further, the edge of opening of the lid 20 is provided with step 21, and the edge of opening of the collet 10 is provided with
Flange 13 is bonded with the table top of step 21 and is connected by screw therebetween；
In the step 21 for the edge of opening that the flange 13 that the edge of opening of above-mentioned collet 10 is set be located in lid 20, from
And being stably connected between lid 20 and collet 10 can be realized.
To ensure the quick heat radiating to module, the lower face of the collet 10 is provided with heat sink 80, the heat sink 80
On be provided with three stiles 81, three stiles 81 form the neck for holding collet 10, three stiles 81 with
The marginating compartment arrangement of heat sink 80, the edge of the heat sink 80 is provided with the mounting hole 82 fixed with automobile chassis, described
The edge of heat sink 80 is additionally provided with mounting bracket 83, the 83 rectangular platy structure of mounting bracket, the mounting bracket 83
Side plate face be bonded with heat sink 80 and be provided with the first hole 831, another lateral plates of the mounting bracket 83 and collet 10
Outer wall fitting and be provided with the second hole 832, the mounting bracket 83 and the side plate end of the outer wall fixation of collet 10 are provided with
Towing hook 833.
Further, with reference to shown in Fig. 4, the connection end of support frame as described above 40 and collet 10 is provided with bar shaped frid 90,
Open Side Down and opening is provided with connection frid 100 for the bar shaped frid 90, and the flange 42 is fixed on bar shaped frid 90
Bottom land upper face, the first mounting hole 91 is provided with the bar shaped frid 90, the second installation is provided with the connection frid 100
Hole 101, the same core of hole core of 101 and first mounting hole of the second mounting hole 91, the fastening bolt 44 pass through the first mounting hole 91
It is connected with flange 42.
It is obvious to a person skilled in the art that the invention is not restricted to the details of above-mentioned one exemplary embodiment, Er Qie
In the case of without departing substantially from spirit or essential attributes of the invention, the present invention can be realized in other specific forms.Therefore, no matter
From the point of view of which point, embodiment all should be regarded as exemplary, and be nonrestrictive, the scope of the present invention is by appended power
Profit requires rather than described above limits, it is intended that all in the implication and scope of the equivalency of claim by falling
Change is included in the present invention.Any reference in claim should not be considered as to the involved claim of limitation.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (3)
1. the battery core mounting structure for battery modules, it is characterised in that：The electricity in collet (10) is arranged on including parallel interval
Pond group, the collet (10) are in opening box-like structure, and the opening of the collet (10) is provided with lid (20), the battery pack
Including battery core (30), the battery core (30) is arranged multiple along collet (10) length direction order, and the both sides of the battery pack are set
Support frame (40) is equipped with, tie down screw (41), adjacent battery core (30) are provided between the supported on both sides frame (40) of the battery pack
Between be provided with insulating frame (50), the overall rectangular tubular structure of the insulating frame (50), the tube chamber of insulating frame (50)
Centre position is provided with waffle slab (51), and the pipe for tie down screw (41) is provided with the side tube wall of the insulating frame (50)
Hole (52), away from pore (52) side insulating frame (50) tube wall on be provided with plug (53) and intubation (54), it is adjacent
The plug (53) of insulating frame (50) is plugged in intubation (54), and the edge of support frame as described above (40) is provided with flange (42), institute
The connection end for stating support frame (40) and collet (10) is provided with bar shaped frid (90), the bar shaped frid (90) Open Side Down and
Opening is provided with connection frid (100), and the flange (42) is fixed on bar shaped frid (90) bottom land upper face, the bar-shaped trough
It is provided with the first mounting hole (91) on plate (90), is provided with the second mounting hole (101) on the connection frid (100), described the
Two mounting holes (101) and the same cores of the first mounting hole (91) Kong Xin, the fastening bolt (44) is through the first mounting hole (91) with turning over
Side (42) connects, and the connection frid (100) is connected with collet (10).
2. the battery core mounting structure according to claim 1 for battery modules, it is characterised in that：Support frame as described above (40)
Overall plate-like structure, the plate face vertical of support frame as described above (40), what the flange (42) was bonded with bar shaped frid (90)
Edge is provided with strip gab (421), and the upper end of the fastening bolt (44) through strip gab (421) and is provided with spiral shell
It is female.
3. the battery core mounting structure according to claim 1 for battery modules, it is characterised in that：The pore (52)
Both ends are respectively arranged with insertion pipe (521) and stepped hole (522), and the insertion pipe (521) of adjacent insulating frame (50) is plugged on platform
In the large scale end in rank hole (522), the both ends of insulating frame (50) tube wall are respectively arranged with first, second, third semicircle
V notch v (501,502,503), second semicircular indentations (502) be located at the first, the 3rd semicircular indentations (501,503) it
Between arrange.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206281.6A CN107732086A (en) | 2017-11-27 | 2017-11-27 | Battery core mounting structure for battery modules |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711206281.6A CN107732086A (en) | 2017-11-27 | 2017-11-27 | Battery core mounting structure for battery modules |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107732086A true CN107732086A (en) | 2018-02-23 |
Family
ID=61219600
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201711206281.6A Withdrawn CN107732086A (en) | 2017-11-27 | 2017-11-27 | Battery core mounting structure for battery modules |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107732086A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210539U (en) * | 2011-08-31 | 2012-05-02 | 重庆长安汽车股份有限公司 | Power battery pack supporting and fixing structure |
| US20150372265A1 (en) * | 2013-02-13 | 2015-12-24 | Kabushiki Kaisha Toyota Jidoshokki | Battery module |
| CN204991806U (en) * | 2015-09-15 | 2016-01-20 | 北京普莱德新能源电池科技有限公司 | Rectangular cell module |
| CN205122665U (en) * | 2015-11-17 | 2016-03-30 | 南京东宇欧鹏巴赫新能源科技有限公司 | Square power battery module composite set |
| CN205406588U (en) * | 2016-02-22 | 2016-07-27 | 宁德时代新能源科技股份有限公司 | Battery box |
| CN205985138U (en) * | 2016-08-29 | 2017-02-22 | 山东魔方新能源科技有限公司 | Square lithium ion battery combo boxes frame with safe pressure release function |
-
2017
- 2017-11-27 CN CN201711206281.6A patent/CN107732086A/en not_active Withdrawn
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202210539U (en) * | 2011-08-31 | 2012-05-02 | 重庆长安汽车股份有限公司 | Power battery pack supporting and fixing structure |
| US20150372265A1 (en) * | 2013-02-13 | 2015-12-24 | Kabushiki Kaisha Toyota Jidoshokki | Battery module |
| CN204991806U (en) * | 2015-09-15 | 2016-01-20 | 北京普莱德新能源电池科技有限公司 | Rectangular cell module |
| CN205122665U (en) * | 2015-11-17 | 2016-03-30 | 南京东宇欧鹏巴赫新能源科技有限公司 | Square power battery module composite set |
| CN205406588U (en) * | 2016-02-22 | 2016-07-27 | 宁德时代新能源科技股份有限公司 | Battery box |
| CN205985138U (en) * | 2016-08-29 | 2017-02-22 | 山东魔方新能源科技有限公司 | Square lithium ion battery combo boxes frame with safe pressure release function |
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| PB01 | Publication | ||
| PB01 | Publication | ||
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Application publication date: 20180223 |