CN209071465U - A kind of battery pack and vehicle - Google Patents
A kind of battery pack and vehicle Download PDFInfo
- Publication number
- CN209071465U CN209071465U CN201822251931.5U CN201822251931U CN209071465U CN 209071465 U CN209071465 U CN 209071465U CN 201822251931 U CN201822251931 U CN 201822251931U CN 209071465 U CN209071465 U CN 209071465U
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- battery pack
- installation part
- vehicle body
- connector
- installing component
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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
Abstract
The embodiment of the present application provides a kind of battery pack, comprising: element cell；Installing component, including side installation part, end part installation part and bottom installation part, side installation part, end part installation part, bottom installation part can surround installation cavity with vehicle body, and installation cavity is used for placement unit battery；Connecting component, installing component is connected with vehicle body by connecting component, so that battery pack is lifted on vehicle body.In the application, when the installing component of the battery pack is connected with vehicle body, and installing component and vehicle body are when surrounding the installation cavity for placement unit battery, the installing component forms the lower case of the battery pack, upper housing of the vehicle body as battery pack, so as to save upper housing, the weight of battery pack is reduced, its energy density is improved.Meanwhile the installing component of the battery pack is lifted on vehicle body by connecting component, can be improved its reliability being connected with vehicle body, and when vehicle body shakes, battery pack keeps opposing stationary with vehicle body, so as to improve the strength and stiffness of the battery pack.
Description
[technical field]
This application involves energy storage device technical field more particularly to a kind of battery pack and vehicles.
[background technique]
The energy sources of electric car are right with the continuous improvement of electric car single charge mileage travelled in battery pack
The electricity requirement of battery pack is higher and higher, and the increase of battery pack electricity necessarily causes the increase of weight, and battery pack weight increases
Afterwards, the strength and stiffness of its main load component lower box are required to further increase, nowel body weight are caused to further increase,
It is unfavorable for the increase of battery pack energy density.
Therefore, how while improving battery pack energy density, the integrally-built strength and stiffness of battery pack is improved, are
Those skilled in the art's technical problem urgently to be resolved.
[utility model content]
In view of this, the embodiment of the present application provides a kind of battery pack and the vehicle using the battery pack, it is existing to solve
There is battery pack energy density in technology lower, and the problem that battery pack lower box strength and stiffness are lower.
The embodiment of the present application provides a kind of battery pack, comprising:
Element cell；
Installing component, including side installation part, end part installation part and bottom installation part, the side installation part, end peace
Piece installing, bottom installation part can surround installation cavity with vehicle body, and the installation cavity is for placing the element cell；
Connecting component, the installing component is connected with vehicle body by the connecting component, so that the battery pack is lifted on
Vehicle body.
Preferably, the connecting component includes multiple first connectors, and each first connector equally spacedly connects
In the side installation part；
First connector is detachably connected with vehicle body.
Preferably, the side installation part offers first through hole；
First connector passes through the first through hole, and protrudes from the side installation part；
First connector protrudes from one end of the side installation part for being connected with vehicle body, and first connection
One end that part protrudes from the side installation part is provided with sealing ring.
Preferably, the bottom installation part is fixedly connected with the side installation part；
The bottom installation part is provided with multiple convex blocks, and the convex block offers the first mounting hole；
First connector includes the first fixed part and the first auxiliary section, and the diameter of first fixed part is greater than described
The diameter of first auxiliary section；
First fixed position is in first mounting hole, and first matching part is in the first through hole；
Stage portion is formed between first fixed part and first auxiliary section, the stage portion and the side are installed
The bottom of part offsets.
Preferably, first connector is hollow tubular structure；
It is connected between first connector and vehicle body by fastener, the fastener has head and bar portion；
The bar portion is located at the inner cavity of the auxiliary section, and the head is located at the inner cavity of the fixed part.
Preferably, the connecting component further includes multiple second connectors, and each second connector equally spacedly connects
It is connected to the end part installation part；
Second connector is detachably connected with vehicle body.
Preferably, second connector includes the second fixed part and the second auxiliary section；
Second auxiliary section is tubular structure, and the end of second auxiliary section has what is extended radially outwardly to turn over
Plate, the turnover panel are second fixed part；
The end part installation part offers the second mounting hole, second matching part in second mounting hole, and
Second fixed part and the upper surface of the end part installation part offset；
It is connected between second connector and vehicle body by fastener.
Preferably, the battery pack further includes seal member, and the seal member is set to the side installation part and vehicle
Between body, and/or, the seal member is set between the end part installation part and vehicle body.
Preferably, the installing component further includes one or more supporting elements, and the both ends of the supporting element are individually fixed in
The side installation part；
The battery pack includes one or more secondary cells, and the secondary cell includes end plate, side plate and the unit
Battery；
The side plate is fixedly connected with the side installation part；
The end plate is fixedly connected with the end part installation part, and/or, the end plate is fixedly connected with the supporting element.
Preferably, the end part installation part includes the first matching piece, and first matching piece is located at the peace of the battery pack
It behave affectedly, first matching piece is fixedly connected with the end plate；
The first matching piece setting is fluted.
In addition, the embodiment of the present application also provides a kind of vehicle, comprising:
Vehicle body；
Driving part, the driving part include battery pack；
Wherein, the battery pack is above-described battery pack；
The installing component of the battery pack is connected with the vehicle body, and the vehicle body and the installing component surround institute
State the installation cavity of battery pack.
In the application, when the installing component of the battery pack is connected with vehicle body, and installing component is surrounded with vehicle body for placing
When the installation cavity of element cell, which forms the lower case of the battery pack, upper housing of the vehicle body as battery pack, thus
Upper housing can be saved, the weight of battery pack is reduced, improves its energy density.Meanwhile the installing component of the battery pack passes through company
Relay part is lifted on vehicle body, can be improved its reliability being connected with vehicle body, and when vehicle body shakes, battery pack and vehicle body
Keep opposing stationary, so as to improve the strength and stiffness of the battery pack.
[Detailed description of the invention]
Technical solution in ord to more clearly illustrate embodiments of the present application, below will be to needed in the embodiment attached
Figure is briefly described, it should be apparent that, the drawings in the following description are only some examples of the present application, for this field
For those of ordinary skill, without creative efforts, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the structural schematic diagram of battery pack provided herein in a specific embodiment；
Fig. 2 is the explosive view of Fig. 1；
Fig. 3 is the structural schematic diagram of installing component in Fig. 1；
Fig. 4 is the longitudinal sectional view of Fig. 3；
Fig. 5 is the partial enlarged view of I part in Fig. 4；
Fig. 6 is the structural schematic diagram for removing the first connector in Fig. 5；
Fig. 7 is the structural schematic diagram of the first auxiliary section of the first connector in Fig. 4；
Fig. 8 is the transverse sectional view of Fig. 3 medial end portions installation part；
Fig. 9 is the structural schematic diagram for removing the second connector in Fig. 8.
Appended drawing reference:
1- installing component；
The side 11- installation part；
111- first through hole；
12- end part installation part；
The first matching piece of 121-；
121a- groove；
The second matching piece of 122-；
The second mounting hole of 123-；
The bottom 13- installation part；
131- convex block；
The first mounting hole of 131a-；
132- reinforcing rib；
14- supporting element；
The first connector of 15-；
The first fixed part of 151-；
The first auxiliary section 152-；
152a- sealing ring；
153- stage portion；
The second connector of 16-；
The second fixed part of 161-；
The second auxiliary section 162-；
17- seal member；
2- secondary cell；
21- element cell；
22- end plate；
221- end plate mounting hole；
23- side plate；
231- flange.
[specific embodiment]
In order to better understand the technical solution of the application, the embodiment of the present application is retouched in detail with reference to the accompanying drawing
It states.
It will be appreciated that described embodiments are only a part of embodiments of the present application, instead of all the embodiments.Base
Embodiment in the application, it is obtained by those of ordinary skill in the art without making creative efforts it is all its
Its embodiment, shall fall in the protection scope of this application.
The term used in the embodiment of the present application is only to be not intended to be limiting merely for for the purpose of describing particular embodiments
The application.In the embodiment of the present application and the "an" of singular used in the attached claims, " described " and "the"
It is also intended to including most forms, unless the context clearly indicates other meaning.
It should be appreciated that term "and/or" used herein is only a kind of incidence relation for describing affiliated partner, indicate
There may be three kinds of relationships, for example, A and/or B, can indicate: individualism A, exist simultaneously A and B, individualism B these three
Situation.In addition, character "/" herein, typicallys represent the relationship that forward-backward correlation object is a kind of "or".
It should be noted that the nouns of locality such as "upper", "lower" described in the embodiment of the present application, "left", "right" are with attached drawing
Shown in angle come what is be described, should not be construed as the restriction to the embodiment of the present application.In addition, within a context, it is also necessary to
Understand, when mentioning an element and being connected to another element "upper" or "lower", can not only be connected directly between another
Perhaps "lower" can also be indirectly coupled to another element "upper" or "lower" by intermediary element for one element "upper".
Please refer to attached drawing 1~9, wherein Fig. 1 is that the structure of battery pack provided herein in a specific embodiment is shown
It is intended to；Fig. 2 is the explosive view of Fig. 1；Fig. 3 is the structural schematic diagram of installing component in Fig. 1；Fig. 4 is the longitudinal sectional view of Fig. 3；Fig. 5
For the partial enlarged view of I part in Fig. 4；Fig. 6 is the structural schematic diagram for removing the first connector in Fig. 5；Fig. 7 is first in Fig. 4
The structural schematic diagram of first auxiliary section of connector；Fig. 8 is the transverse sectional view of Fig. 3 medial end portions installation part；Fig. 9 is in Fig. 8
Fall the structural schematic diagram of the second connector.
The embodiment of the present application provides a kind of battery pack, as shown in Figure 1, the battery pack includes: one or more element cells
21, when including multiple element cells 21, each unit battery 21 is to preset aligned transfer, and shape after the arrangement of multiple element cells 21
At secondary cell 2, which further includes end plate 22 and side plate 23, wherein the end plate 22 is fixedly connected with side plate 23, shape
At installation frame, each unit battery for fixing in the secondary cell 2, and the end plate 22 has end plate mounting hole 221, the end
Plate mounting hole 221 is for end plate 22 to be connected with installing component 1.
Alternatively, the battery pack includes multiple element cells 21, and each unit battery 21 with default aligned transfer and is placed in
In battery pack, meanwhile, by bandage around element cell 21, at this point, may not include end plate 22 and side plate 23 in the battery pack.
In addition, the battery pack further includes installing component 1, as shown in figure 3, the installing component 1 includes side installation part 11, end
Portion's installation part 12 and bottom installation part 13.
Specifically, as shown in Figures 1 to 3, which includes two survey beams, and end part installation part 12 includes two
End carriage, bottom installation part 13 include bottom plate.And two curb girder in the width direction W be distributed, two end carriages along its length L be distributed, meanwhile,
End part installation part 12 and side installation part 11 are end to end, form a rectangular frame；The upper surface and end of bottom installation part 13
The rectangular frame that portion's installation part 12 and the connection of side installation part 11 are formed is fixed, and forms the installing component 1 of a groove profile, should
Installing component 1 is mountable in body bottom section, surrounds an installation cavity with vehicle body, which can be used for placing each unit battery
21。
Meanwhile seal member 17 is additionally provided between vehicle body and installing component 1, the seal member 17 for seal vehicle body with
The above-mentioned installation cavity formed between installing component 1.
Further, which further includes connecting component, which makes for connecting vehicle body and installing component 1
It obtains the battery pack and is lifted on vehicle body.
In the application, when the installing component 1 of the battery pack is connected with vehicle body, and installing component 1 is surrounded with vehicle body for putting
When setting the installation cavity of element cell 2, the lower case of the installing component 1 formation battery pack, upper housing of the vehicle body as battery pack,
So as to save upper housing, the weight of battery pack is reduced, its energy density is improved.Meanwhile the installing component 1 of the battery pack is logical
Cross connecting component and be lifted on vehicle body, can be improved its reliability being connected with vehicle body, and when vehicle body shakes, battery pack with
Vehicle body keeps opposing stationary, so as to improve the strength and stiffness of the battery pack.
Specifically, as shown in Fig. 1~7, which includes multiple first connectors 15, and each first connector 15 etc.
It is connected to spacing side installation part 11, and 15 lower end of the first connector is vertically connect with side installation part 11, meanwhile, first
15 upper end of connector is detachably connected with vehicle body.
In the present embodiment, since the first connector 15 is equally spacedly set to side connector 11, and battery pack is lifted on
After vehicle body, the position of power is located at first connector 15, when first connector 15 is equally spacedly distributed in side installation
When part 11 so that on the side installation part 11 power position equidistantly distributed, i.e. the side installation part 11 by uniform load,
Under the Uniform Loads, side installation part 11 is primarily subjected to moment of flexure, and acts the maximal bending moment and side installation part born
Stress point is related:
Wherein, M is moment of flexure suffered by side installation part 11, and F is suffered uniform load size, and l is adjacent two the
Therefore the distance between a connection piece 15 when the quantity for increasing by the first connector 15, reduces between adjacent two first connector 15
Apart from when, the moment of flexure that side installation part 11 is born can be reduced, to improve the rigidity of the side installation part 15.In addition,
It is more smooth with the shearing force variation compared with by single-point load, born when the side installation part 15 is by uniform load, it can
Further increase the strength and stiffness of side installation part 15.
Further, as shown in fig. 6, the side installation part 11 offers multiple first through hole 111, the first through hole 111
Side installation part 11 is penetrated through along height direction H, and each first through hole 111 is equally spacedly arranged, and each first connector 15 passes through pair
The first through hole 111 that should be arranged, and the length of the first connector 15 is greater than first through hole 111 and side installation part 11 along height side
To the size of H, and 15 upper end of the first connector is made to protrude from side installation part 11.
In addition, as shown in fig. 7, one end that first connector 15 protrudes from side installation part 11 is provided with sealing ring
151a, so that the installation cavity that installing component 1, connecting component and vehicle body surround becomes the space of a sealing.
Further, as shown in Fig. 2, the both sides of 13 upper surface of bottom installation part are provided with the convex block of multiple rectangles
131, and each convex block 131 is equally spacedly arranged, as shown in fig. 6, each convex block 131 offers the first mounting hole 131a, each first peace
It fills hole 131a to correspond with the position of each first through hole 111 of side installation part 11 respectively, and is interconnected.Meanwhile the bottom
Portion's installation part 13 is fixedly connected with side installation part 11.
Correspondingly, as shown in figure 5, the first connector 15 includes the first fixed part 151 and the first auxiliary section 152, and first
Fixed part 151 and the first auxiliary section 152 are cylinder.Wherein, 151 diameter of the first fixed part is greater than the first auxiliary section 152
Therefore diameter forms stage portion 153 between the first fixed part 151 and the first auxiliary section 152.
As shown in figure 5, first auxiliary section 152 is located at the first through hole of side installation part 11 in above-mentioned first connector 15
In 111, the first fixed part 151 is located in the first mounting hole 131a, and between the first fixed part 151 and the first auxiliary section 152
Stage portion 153 and the bottom of side installation part 11 offset, thus by the first connector 15 and side installation part 11, bottom installation part
13 are fixedly connected.And first fixed part 151 can be fully located in the first mounting hole 151a.
In the present embodiment, each convex block 131 is arranged in bottom installation part 13, and the convex block 131 offers the first mounting hole 131a
When, the size for connection being capable of increasing between bottom installation part 13 and the first connector 15, so that improving connection between the two can
By property.
In addition, the battery pack also passes through fastener and is lifted on vehicle body, which includes head and bar in the present embodiment
Portion, when installation, the bar portion of the fastener protrudes into the inner cavity of the first auxiliary section 152, and stretches out from the upper end of the first auxiliary section 152,
It is connect with vehicle body, head is located at the inner cavity of the first fixed part, so that the fastener is fully located in the first connector 15.
Specifically, which can be fastening bolt, and the screw rod of bolt is located in the first auxiliary section 152, and head is positioned at the
In one fixed part 151, to realize being detachably connected between installing component 1 and vehicle body, and after first connector 15 is arranged,
The reliability that battery pack is connect with vehicle body can also be improved.
On the other hand, in the present embodiment, connecting component further includes multiple second connectors 16, and between second connector 16 etc.
It is connected to end part installation part 12 away from ground, and second connector 16 is detachably connected with vehicle body.
Similarly, when the second connector is equally spacedly connected to end part installation part 12,12 institute of end part installation part can be reduced
The moment of flexure being subject to, to improve its rigidity.
Specifically, as shown in figure 8, second connector 16 includes the second fixed part 161 and the second auxiliary section 162, wherein
Second auxiliary section 162 is tubular structure, and the end of the second auxiliary section 162 has the turnover panel to extend radially outwardly, which is
Second fixed part 161.Correspondingly, as shown in figure 9, end part installation part 12 offers the second mounting hole 123, and each second mounting hole
123 in end part installation part 12 spaced set.
In second connector 16, the second auxiliary section 162 is set in the second mounting hole 123, under the second fixed part 161
Surface and the upper surface of end part installation part 12 offset, to realize the connection between the second connector 16 and end part installation part 12.
Meanwhile second connector 16 be connected with vehicle body by fastener, which includes bar portion and head, fastener
Bar portion is located at the inner cavity of the second auxiliary section 162, and stretches out out of second auxiliary section, to be connected with vehicle body.
Therefore, in the application, by the first connector 15 of setting and the second connector 16, it can be realized and lift battery pack
In vehicle body.
And above-mentioned first auxiliary section 151 and the second auxiliary section 162 are hollow tubular structures, so as to reduce battery pack
Weight, improve energy density.
In the above various embodiments, as Fig. 2 and he shown in 3, which further includes one or more supporting elements 14, should
The both ends of supporting element 14 are individually fixed in both sides installation part 11, which is arranged in parallel with end part installation part 12.This two
In primary cell 2, side plate 23 has outwardly extending flange 231, which can be fixed with side installation part 11, end plate 22
It is connected by end plate mounting hole 221 with supporting element 14, and/or is connected with the first matching piece 121 of end part installation part 12, thus will
The secondary cell is fixed with installing component.
As shown in figure 3, in the end part installation part 11, including being located at the first matching piece 121 inside installation cavity and being located at peace
It behave affectedly the second external matching piece 122, wherein first matching piece 161 can be fixedly connected with the end plate 22 of secondary cell 2,
Meanwhile first matching piece 121 is additionally provided with groove 121a, groove 121a can be used in draining.
In addition, bottom installation part 13 is additionally provided with multiple reinforcing ribs 132 in the various embodiments described above, for improving bottom peace
The strength and stiffness of piece installing 13.
In addition, the embodiment of the present application also provides a kind of vehicle, comprising: vehicle body；Driving part, the driving part include battery
Packet, wherein the battery pack is any of the above battery pack as described in the examples, and the installing component 1 of the battery pack is connected with vehicle body,
And vehicle body and installing component 1 surround the installation cavity of battery pack.
The foregoing is merely the preferred embodiments of the application, not to limit the application, all essences in the application
Within mind and principle, any modification, equivalent substitution, improvement and etc. done be should be included within the scope of the application protection.
Claims (11)
1. a kind of battery pack, comprising:
Element cell；
Installing component, including side installation part, end part installation part and bottom installation part, the side installation part, end part installation part,
Bottom installation part can surround installation cavity with vehicle body, and the installation cavity is for placing the element cell；
Connecting component, the installing component is connected with vehicle body by the connecting component, so that the battery pack is lifted on vehicle body.
2. battery pack according to claim 1, which is characterized in that the connecting component includes multiple first connectors, and
Each first connector is equally spacedly connected to the side installation part；
First connector is detachably connected with vehicle body.
3. battery pack according to claim 2, which is characterized in that the side installation part offers first through hole；
First connector passes through the first through hole, and protrudes from the side installation part；
First connector protrudes from one end of the side installation part for being connected with vehicle body, and first connector is convex
One end for the side installation part is provided with sealing ring.
4. battery pack according to claim 3, which is characterized in that the bottom installation part is fixed with the side installation part
Connection；
The bottom installation part is provided with multiple convex blocks, and the convex block offers the first mounting hole；
First connector includes the first fixed part and the first auxiliary section, and the diameter of first fixed part is greater than described first
The diameter of auxiliary section；
First fixed position is in first mounting hole, and first matching part is in the first through hole；
Stage portion, the stage portion and the side installation part are formed between first fixed part and first auxiliary section
Bottom offsets.
5. battery pack according to claim 4, which is characterized in that first connector is hollow tubular structure；
It is connected between first connector and vehicle body by fastener, the fastener has head and bar portion；
The bar portion is located at the inner cavity of the auxiliary section, and the head is located at the inner cavity of the fixed part.
6. battery pack according to claim 1, which is characterized in that the connecting component further includes multiple second connectors,
And each second connector is equally spacedly connected to the end part installation part；
Second connector is detachably connected with vehicle body.
7. battery pack according to claim 6, which is characterized in that second connector includes the second fixed part and second
Auxiliary section；
Second auxiliary section is tubular structure, and the end of second auxiliary section has the turnover panel to extend radially outwardly, institute
Stating turnover panel is second fixed part；
The end part installation part offers the second mounting hole, and second matching part is and described in second mounting hole
Second fixed part and the upper surface of the end part installation part offset；
It is connected between second connector and vehicle body by fastener.
8. battery pack according to any one of claims 1 to 7, which is characterized in that the battery pack further includes sealing
Part, the seal member are set between the side installation part and vehicle body, and/or, the seal member is set to the end
Between portion's installation part and vehicle body.
9. battery pack according to any one of claims 1 to 7, which is characterized in that the installing component further includes one
Or multiple supporting elements, the both ends of the supporting element are individually fixed in the side installation part；
The battery pack includes one or more secondary cells, and the secondary cell includes end plate, side plate and the element cell；
The side plate is fixedly connected with the side installation part；
The end plate is fixedly connected with the end part installation part, and/or, the end plate is fixedly connected with the supporting element.
10. battery pack according to claim 9, which is characterized in that the end part installation part includes the first matching piece, described
First matching piece is located at the installation cavity of the battery pack, and first matching piece is fixedly connected with the end plate；
The first matching piece setting is fluted.
11. a kind of vehicle, comprising:
Vehicle body；
Driving part, the driving part include battery pack；
Wherein, the battery pack is battery pack according to any one of claims 1 to 10；
The installing component of the battery pack is connected with the vehicle body, and the vehicle body and the installing component surround the electricity
The installation cavity of Chi Bao.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251931.5U CN209071465U (en) | 2018-12-29 | 2018-12-29 | A kind of battery pack and vehicle |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822251931.5U CN209071465U (en) | 2018-12-29 | 2018-12-29 | A kind of battery pack and vehicle |
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| Publication Number | Publication Date |
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| CN209071465U true CN209071465U (en) | 2019-07-05 |
Family
ID=67102509
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| Application Number | Title | Priority Date | Filing Date |
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| CN201822251931.5U Active CN209071465U (en) | 2018-12-29 | 2018-12-29 | A kind of battery pack and vehicle |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310524A (en) * | 2019-08-08 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Battery pack |
| CN114174103A (en) * | 2019-09-05 | 2022-03-11 | 宝马股份公司 | Energy accumulator/underbody arrangement for a motor vehicle |
-
2018
- 2018-12-29 CN CN201822251931.5U patent/CN209071465U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112310524A (en) * | 2019-08-08 | 2021-02-02 | 宁德时代新能源科技股份有限公司 | Battery pack |
| WO2021023079A1 (en) * | 2019-08-08 | 2021-02-11 | 宁德时代新能源科技股份有限公司 | Battery pack and device using battery pack |
| CN114174103A (en) * | 2019-09-05 | 2022-03-11 | 宝马股份公司 | Energy accumulator/underbody arrangement for a motor vehicle |
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