CN207558892U - Battery modules and battery pack - Google Patents
Battery modules and battery pack Download PDFInfo
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- CN207558892U CN207558892U CN201721837482.1U CN201721837482U CN207558892U CN 207558892 U CN207558892 U CN 207558892U CN 201721837482 U CN201721837482 U CN 201721837482U CN 207558892 U CN207558892 U CN 207558892U
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- battery modules
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- battery pack
- boss
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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 utility model provides a kind of battery modules and battery pack.Battery modules include：Multiple battery units；Upper cover is fixed on the top of multiple battery units；Two end plates；Two side plates；The upside of the short transverse of each side plate is equipped with the fixed structure outwardly protruded in the width direction, for playing fixed function when battery modules are assembled into battery pack.Battery pack includes：Lower box has：Bottom wall；Peripheral wall is connected to bottom wall and the host cavity of upper end opening is surrounded with bottom wall；Multiple midfeathers are connected to bottom wall and peripheral wall and host cavity are divided into multiple sub- host cavities arranged in the width direction.Battery pack further includes：Multiple above-mentioned battery modules, at least one battery modules are fixed on along its length in a corresponding sub- host cavity, and each battery modules are fixed on the upper surface of corresponding midfeather by the fixed structure on two side plates.When battery modules are assembled into battery pack, the assembly space of battery pack is efficiently utilized, improves the energy density of battery pack.
Description
Technical field
The utility model is related to field of batteries more particularly to a kind of battery modules and battery pack.
Background technology
At present when battery modules are assembled into battery pack, the front and back end of usual battery modules is all thick end plate, each thickness end
Plate is equipped with two bolt through-holes of the thick end plate of perforation in the up-down direction, and four stay bolts are each passed through the front and back end of battery modules
Thick end plate corresponding bolt through-hole and battery modules are locked in battery pack；In addition, battery modules electrical connection passes through spiral shell
Bolt-lock is tight, while positive and negative anodes copper bar needs thick end plate to provide locking insulating space.Thus battery modules cost and total is greatly increased
Amount；Increase module assembling complexity simultaneously.
Utility model content
In view of the problem of background technology, the purpose of this utility model is to provide a kind of battery modules and batteries
Packet when battery modules are used for battery pack, can avoid the use of thick end plate of the prior art, efficiently use battery pack
Assembly space improves the energy density of battery pack, reduces the cost and weight of battery modules.
To achieve these goals, in a first aspect, the utility model provides a kind of battery modules, including：It is multiple
Battery unit is arranged side by side along its length；Upper cover is fixed on the top of multiple battery units；Two end plates, are posted by multiple
The both sides of the length direction of battery unit；Two side plates, are posted by the both sides of the width direction of multiple battery units, and with two
End plate is fixed together；The upside of the short transverse of each side plate is equipped with the fixed structure outwardly protruded in the width direction, uses
In playing fixed function when battery modules are assembled into battery pack.
To achieve these goals, in second aspect, the utility model provides a kind of battery pack, including：Lower box,
Have：Bottom wall；Peripheral wall is connected to bottom wall and the host cavity of upper end opening is surrounded with bottom wall；Multiple midfeathers, be connected to bottom wall with
Host cavity is simultaneously divided into multiple sub- host cavities arranged in the width direction by peripheral wall.Battery pack further includes：It is multiple according to this practicality
Battery modules described in novel first aspect, at least one battery modules are fixed on a corresponding sub- host cavity along its length
In, and each battery modules are fixed on the upper surface of corresponding midfeather by the fixed structure on two side plates.
The beneficial effects of the utility model are as follows：
In battery modules according to the present utility model, when battery modules are assembled into battery pack, the prior art is avoided
In thick end plate use, efficiently utilize the assembly space of battery pack, avoid the waste in the space of lower box, improve
The energy density of battery pack reduces the cost and weight of battery modules.
Description of the drawings
Fig. 1 is the exploded perspective view of battery modules according to the present utility model.
Fig. 2 is the assembling figure of Fig. 1.
Fig. 3 is the exploded perspective view of battery pack according to the present utility model.
Fig. 4 is the assembling figure of Fig. 3.
Fig. 5 is the stereogram of an embodiment of the part composition component in Fig. 4.
Fig. 6 is the sectional view of Fig. 5.
Fig. 7 is the stereogram of another embodiment of the part composition component similar with Fig. 5.
Fig. 8 is the sectional view of Fig. 7.
Fig. 9 is the stereogram of the another embodiment of the portion of tissue component similar with Fig. 5.
Figure 10 is the stereogram of the conduct piece in Fig. 9.
Wherein, the reference numerals are as follows：
1 battery modules, 21 bottom wall
11 battery unit, 22 peripheral wall
The 12 sub- host cavities of upper cover S
121 buckle slot, 23 midfeather
13 end plate, 231 screw hole
14 side plate, 3 screw
4 electrical connection box of B boss
41 box body of FH mounting holes
15 isolation board, 42 fixing groove
151 43 conduct pieces of buckle
16 conductive connecting pieces arrange 431 elastomeric bases
161 conductive connecting piece, 432 contact site
162 output chip, 433 contact groove
1621 main part L length directions
1622 extension W width directions
2 lower box H short transverses
Specific embodiment
It is described in detail battery modules and battery pack according to the present utility model with reference to the accompanying drawings.
Illustrate the battery modules according to the utility model first aspect first.
As depicted in figs. 1 and 2, battery modules according to the present utility model include：Multiple battery units 11, along its length
L is arranged side by side；Upper cover 12 is fixed on the top of multiple battery units 11；Two end plates 13 are posted by multiple battery units 11
The both sides of length direction L；Two side plates 14, are posted by the both sides of the width direction W of multiple battery units 11, and with two end plates
13 are fixed together；The upside of the short transverse H of each side plate 14 is equipped with the fixed structure that W is outwardly protruded in the width direction,
For playing fixed function when battery modules 1 are assembled into battery pack.
In battery modules according to the present utility model, when battery modules are assembled into battery pack, each side plate can be passed through
The fixed structure that the W in the width direction that the upside of 14 short transverse H is equipped with is outwardly protruded is fixed on battery pack described below
Lower box 2 on, avoid it is of the prior art battery modules are fixed in battery pack to realize using thick end plate, effectively
The assembly space of battery pack is utilized, avoids the waste in the space of lower box 2, improves the energy density of battery pack, reduces
The cost and weight of battery modules.
The fixed structure of each side plate 14 can be there are many form, and specifically, in one embodiment, fixed structure is boss B,
Boss B is equipped with the mounting hole FH penetrated through along short transverse H.
Referring to Figures 1 and 2 and combine Fig. 3 and Fig. 4, the quantity of boss B is multiple, and each boss B accordingly sets that there are one solid
Determine hole FH.The setting of mounting hole FH can make battery modules 1 be fixed on the lower box 2 of battery pack described below by screw 3
On, and upside arranged for interval of multiple mounting hole FH along the short transverse H of the side plate 14 of battery modules 1, thus by battery modules 1
Suffered stress distribution is effectively guaranteed the fixing intensity of battery modules 1, avoids stress concentration on multiple boss B
Caused solid failure.In addition, this fixed form so that the process that battery modules 1 are assembled into battery pack is simple, improve
The packaging efficiency of battery pack.
The side of multiple boss B and width direction W opposite sides on the side plate 14 of the width direction W sides of each battery modules 1
Multiple boss B are alternately arranged in the length directionl on plate 14.Thus when battery modules 1 are when being assembled into battery pack, phase can be made
Multiple boss B on opposite two side plate 14 of two adjacent battery modules 1 are not interfered, and efficiently utilize battery pack
Assembly space.
As shown in Figure 1, battery modules 1 further include：Isolation board 15 is fixed on the upper surface of multiple battery units 11, isolation
The periphery of plate 15 is equipped with multiple buckles 151 projected upwards；The periphery of upper cover 12 is equipped with multiple buckle slots 121, each buckle slot 121
It is corresponding with a buckle 151 of the periphery of isolation board 15；Wherein, when upper cover 12 is covered on the top of multiple battery units 11
When, each of isolation board 15 is buckled on 151 one buckle slot 121 of correspondence of periphery for being accordingly fastened on upper cover 12.Isolation board 15
On the setting of buckle slot 121 of buckle 151 and upper cover 12 effectively upper cover 12 and multiple battery units 11 are fixed together.
The end face of the length direction L of each side plate 14 is fixed together by welding with the corresponding end face of each end plate 13.
In battery modules according to the present utility model, as shown in Figure 1, each battery unit 11 has opposite polarity two
Electrode (not shown), multiple battery units 11 are arranged side by side and form two electrodes that L is arranged along its length and arrange；Battery modules
1 further includes：Two conductive connecting pieces row 16, a corresponding electrode is arranged between isolation board 15 and upper cover 12 and respectively, is respectively led
Electric connecting sheet row 16 has W arrangements in the width direction and spaced multiple conductive connecting pieces 161 and an output chip
162, each conductive connecting piece 161 and output chip 162 are electrically connected the corresponding electrode in corresponding electrode row.
Specifically, each output chip 162 has：Main part 1621, the corresponding electricity being electrically connected on corresponding electrode row
Pole；And extension 1622, it is connected to main part 1621 and extends the outside of corresponding side plate 14 and downward from main part 1621
Bending.
Finally illustrate the battery pack according to the utility model second aspect.
With reference to Fig. 3 to Figure 10, battery pack according to the present utility model includes：Lower box 2, has：Bottom wall 21；Peripheral wall 22,
It is connected to bottom wall 21 and the host cavity of upper end opening is surrounded with bottom wall 21；Multiple midfeathers 23, are connected to bottom wall 21 and peripheral wall 22
And host cavity is divided into the sub- host cavity S of multiple arrangements of W in the width direction.Battery pack further includes：It is multiple new according to this practicality
Battery modules 1 described in type first aspect, L is fixed on a corresponding sub- host cavity S at least one battery modules 1 along its length
In, and each battery modules 1 are fixed on the upper surface of corresponding midfeather 23 by the fixed structure on two side plates 14.
In battery pack according to the present utility model, the fixed structure on two side plates 14 of battery modules 1 is fixed respectively
In the upper surface of corresponding midfeather 23, the assembly space of the lower box 2 of battery pack is taken full advantage of, avoids the wave in space
Take, improve the energy density of battery pack, and assemble the efficiency of assembling for simply, improving battery pack.
Fixed structure on the side plate 14 of battery modules 1 is there are many form, specifically, in one embodiment, such as Fig. 3 and figure
Shown in 4, the fixed structure on side plate 14 is boss B, and the quantity of boss B is multiple, and each boss B is accordingly equipped with along short transverse
The mounting hole FH of H perforations；Each midfeather 23 be equipped with multiple screw holes 231, extended downwardly from the upper surface of midfeather 23 and respectively with
Mounting hole FH on one boss B is corresponding；Battery pack further includes：Multiple screws 3, each screw 3 pass through the correspondence of battery modules 1
Mounting hole FH and midfeather 23 corresponding screw hole 231 and battery modules 1 are fixed between two neighboring midfeather 23.
The setting of multiple boss B on two side plates 14 causes when battery pack is impacted or is vibrated, and external force is distributed to each boss B
On, it efficiently avoids stress concentration and causes the solid failure of battery modules 1.In addition, using 3 fixed fixed effect of screw
It is good, stable structure, and it is easy to operate, improve the packaging efficiency of battery pack.Certainly and with being limited to this, others can also be used
Fixed form is fixed.
It is multiple on the side plate 14 of the width direction W sides of each battery modules 1 in battery pack according to the present utility model
Boss B is alternately arranged in the length directionl with multiple boss B on the side plate 14 of width direction W opposite sides.So as to be assembled into electricity
When pond is wrapped, multiple boss B on opposite two side plate 14 of two adjacent battery modules 1 can be made not interfere, had
The assembly space of battery pack is utilized to effect.
In battery pack according to the present utility model, each battery unit 11 in each battery modules 1 has opposite polarity
Two electrodes, multiple battery units 11 are arranged side by side and form two electrodes that L is arranged along its length and arrange；Battery modules 1 are also
Including：Two conductive connecting pieces row 16, between isolation board 15 and upper cover 12 and respectively corresponding electrode row, each conductive company
Contact pin row 16 has W arrangements in the width direction and spaced multiple conductive connecting pieces 161 and an output chip 162,
Each conductive connecting piece 161 and output chip 162 are electrically connected the corresponding electrode in corresponding electrode row.
With reference to Fig. 3 and Fig. 4, each output chip 162 of each battery modules 1 has：Main part 1621 is electrically connected to one corresponding
Corresponding electrode on electrode row；And extension 1622, it is connected to main part 1621 and extends correspondence from main part 1621
The outside of side plate 14 is simultaneously bent downward；Wherein, two of opposite side of the two neighboring battery modules 1 of W arrangements in the width direction
Two extensions 1622 of output chip 162 are relative to each other.
Battery pack further includes：Electrical connection box 4, is fixed on the upper surface of each midfeather 23, and electrical connection box 4 has：Box
Body 41 is fixed on the upper surface of each midfeather 23；Fixing groove 42 is extended downwardly from the upper surface of box body 41；Conduct piece 43, it is fixed
In fixing groove 42；Two extensions 1622 of opposite two output chip 162 of two battery modules 1 are inserted into electrical connection respectively
With in the fixing groove 42 of box 4 and respectively with 43 Elastic Contact of conduct piece.Two output chips 162 of two battery modules 1 and conduction
43 Elastic Contact of part effectively alleviates stress concentration of the extension 1622 of output chip 162 caused by external mechanical oscillation
And it is electrically connected failure.Improve the stability of the electrical connection of battery modules.
Specifically, there are many forms for conduct piece 43, and in one embodiment, with reference to Fig. 5 and Fig. 6, conduct piece 43 is V-shaped, and
Including：Elastomeric base 431 is fixed in fixing groove 42；And two contact sites 432, it is connected to the two of elastomeric base 431
Side；Wherein, two extensions 1622 of opposite two output chip 162 of two battery modules 1 contact conduct piece 43 respectively
Corresponding contact site 432.Elastomeric base 431 is effectively delayed so that two output chips 162 and two 1622 Elastic Contacts of extension
Solution fails since mechanical oscillation make stress concentration at two 162 electrical connections of output chip.
In another embodiment, with reference to Fig. 7 and Fig. 8, conduct piece 43 includes：Elastomeric base 431 is fixed on fixing groove 42
In；And two contact sites 432, it is connected to the both sides of elastomeric base 431；Wherein, opposite two of two battery modules 1
Two extensions 1622 of a output chip 162 contact with each other and are clamped between two contact sites 432.Similarly, elastomeric base
431 cause two output chips 162 between two contact sites 432, effectively to be alleviated since mechanical oscillation make two by resilient clamp
Stress concentration at a 162 electrical connection of output chip and fail.
In another embodiment, with reference to Fig. 9 and Figure 10, conduct piece 43 is bent to form two contact grooves 433；Wherein, two
Two extensions 1622 of opposite two output chip 162 of battery modules 1 are plugged in respectively in a corresponding contact groove 433
And the inner wall with contact groove 433 contacts respectively.Similarly, contact groove 433 is so that two output chips 162 and 433 elastic connecting of contact groove
It touches, effectively alleviates and fail since mechanical oscillation make stress concentration at two 162 electrical connections of output chip.Certain conduct piece 43
Form is not limited to three kinds of above-mentioned embodiments, can also be other satisfactory forms, will not enumerate herein.
Conduct piece 43 is fixed together with 42 integrated injection molding of fixing groove or assembling.
Claims (13)
1. a kind of battery modules (1), including：
Multiple battery units (11), along its length (L) be arranged side by side；
Upper cover (12) is fixed on the top of multiple battery units (11)；
Two end plates (13) are posted by the both sides of the length direction (L) of multiple battery units (11)；
Two side plates (14) are posted by the both sides of the width direction (W) of multiple battery units (11), and solid with two end plates (13)
Surely it links together；
It is characterized in that, the upside of the short transverse (H) of each side plate (14) is equipped with the fixed knot that (W) is outwardly protruded in the width direction
Structure, for playing fixed function when battery modules (1) are assembled into battery pack.
2. battery modules (1) according to claim 1, which is characterized in that fixed structure is boss (B), and boss (B) is equipped with
The mounting hole (FH) penetrated through along short transverse (H).
3. battery modules (1) according to claim 2, which is characterized in that the quantity of boss (B) is multiple, each boss (B)
Mounting hole (FH) there are one accordingly setting.
4. battery modules (1) according to claim 3, which is characterized in that the width direction (W) one of each battery modules (1)
Multiple boss (B) on the side plate (14) of side are with multiple boss (B) on the side plate (14) of width direction (W) opposite side in length side
It is alternately arranged on (L).
5. battery modules (1) according to claim 1, which is characterized in that battery modules (1) further include：
Isolation board (15) is fixed on the upper surface of multiple battery units (11), and the periphery of isolation board (15) is equipped with multiple prominent upwards
The buckle (151) gone out；
The periphery of upper cover (12) is equipped with multiple buckle slots (121), each buckle slot (121) and a card of the periphery of isolation board (15)
It is corresponding to detain (151)；
Wherein, when upper cover (12) is covered on the top of multiple battery units (11), each buckle (151) of isolation board (15) is corresponding
Ground is fastened on one buckle slot (121) of correspondence of the periphery of upper cover (12).
6. battery modules (1) according to claim 1, which is characterized in that
Each battery unit (11) has opposite polarity two electrodes, and multiple battery units (11) are arranged side by side and are formed along length
Two electrodes row of direction (L) arrangement；
Battery modules (1) further include：Two conductive connecting pieces arrange (16), between isolation board (15) and upper cover (12) and respectively
Corresponding electrode row, each conductive connecting piece row (16) have (W) arrangement and spaced multiple conductions in the width direction
Connection sheet (161) and an output chip (162), each conductive connecting piece (161) and output chip (162) are electrically connected in correspondence
Corresponding electrode in one electrode row.
7. battery modules (1) according to claim 6, which is characterized in that each output chip (162) has：
Main part (1621), the corresponding electrode being electrically connected on corresponding electrode row；And
Extension (1622) is connected to main part (1621) and extends the outside of corresponding side plate (14) simultaneously from main part (1621)
It bends downward.
8. a kind of battery pack, including：
Lower box (2), has：
Bottom wall (21)；
Peripheral wall (22) is connected to bottom wall (21) and the host cavity of upper end opening is surrounded with bottom wall (21)；
Multiple midfeathers (23) are connected to bottom wall (21) and peripheral wall (22) and are divided into host cavity multiple (W) in the width direction
The sub- host cavity (S) of arrangement；
It is characterized in that, battery pack further includes：
Multiple battery modules (1) according to described in claim 1, (L) is fixed along its length at least one battery modules (1)
In a corresponding sub- host cavity (S), and each battery modules (1) are fixed on correspondence by the fixed structure on two side plates (14)
Midfeather (23) upper surface.
9. battery pack according to claim 8, which is characterized in that
Fixed structure on side plate (14) is boss (B), and the quantity of boss (B) is multiple, and each boss (B) is accordingly equipped with along height
Spend the mounting hole (FH) of direction (H) perforation；
Each midfeather (23) extends downwardly and convex with one respectively equipped with multiple screw holes (231) from the upper surface of midfeather (23)
Mounting hole (FH) on platform (B) is corresponding；
Battery pack further includes：Multiple screws (3), each screw (3) across battery modules (1) corresponding mounting hole (FH) and in
The corresponding screw hole (231) of partition (23) and battery modules (1) are fixed between two neighboring midfeather (23).
10. battery pack according to claim 9, which is characterized in that width direction (W) side of each battery modules (1)
Multiple boss (B) on side plate (14) are with multiple boss (B) on the side plate (14) of width direction (W) opposite side in length direction
(L) it is alternately arranged on.
11. battery pack according to claim 8, which is characterized in that
Each battery unit (11) in each battery modules (1) has opposite polarity two electrodes, and multiple battery units (11) are simultaneously
Arrangement puts and forms two electrodes row of (L) arrangement along its length；
Battery modules (1) further include：Two conductive connecting pieces arrange (16), between isolation board (15) and upper cover (12) and respectively
Corresponding electrode row, each conductive connecting piece row (16) have (W) arrangement and spaced multiple conductions in the width direction
Connection sheet (161) and an output chip (162), each conductive connecting piece (161) and output chip (162) are electrically connected in correspondence
Corresponding electrode in one electrode row.
12. battery pack according to claim 11, which is characterized in that
Each output chip (162) of each battery modules (1) has：
Main part (1621), the corresponding electrode being electrically connected on corresponding electrode row；And
Extension (1622) is connected to main part (1621) and extends the outside of corresponding side plate (14) simultaneously from main part (1621)
It bends downward；
Wherein, in the width direction (W) arrangement two neighboring battery modules (1) opposite side two output chips (162) two
A extension (1622) is relative to each other.
13. battery pack according to claim 12, which is characterized in that
Battery pack further includes：Electrical connection box (4) is fixed on the upper surface of each midfeather (23),
Electrical connection box (4) has：
Box body (41) is fixed on the upper surface of each midfeather (23)；
Fixing groove (42) is extended downwardly from the upper surface of box body (41)；
Conduct piece (43) is fixed in fixing groove (42)；
Two extensions (1622) of opposite two output chip (162) of two battery modules (1) are inserted into electrical connection and are used respectively
In the fixing groove (42) of box (4) and respectively with conduct piece (43) Elastic Contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721837482.1U CN207558892U (en) | 2017-12-25 | 2017-12-25 | Battery modules and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721837482.1U CN207558892U (en) | 2017-12-25 | 2017-12-25 | Battery modules and battery pack |
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| Publication Number | Publication Date |
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| CN207558892U true CN207558892U (en) | 2018-06-29 |
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ID=62660658
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| EP3506386A1 (en) * | 2017-12-28 | 2019-07-03 | Contemporary Amperex Technology Co., Limited | Shell, battery module and battery pack |
| CN111106279A (en) * | 2019-08-02 | 2020-05-05 | 宁德时代新能源科技股份有限公司 | Battery pack |
| WO2020135103A1 (en) * | 2018-12-29 | 2020-07-02 | 宁德时代新能源科技股份有限公司 | Battery pack and automobile |
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| CN111584785A (en) * | 2020-05-12 | 2020-08-25 | 合肥国轩高科动力能源有限公司 | Power battery module and system thereof |
| WO2022005218A1 (en) * | 2020-07-01 | 2022-01-06 | 주식회사 엘지에너지솔루션 | Battery pack and device including same |
| CN114586225A (en) * | 2020-07-01 | 2022-06-03 | 株式会社Lg新能源 | Battery pack and device including the same |
| JP2022550804A (en) * | 2020-07-01 | 2022-12-05 | エルジー エナジー ソリューション リミテッド | Battery packs and devices containing them |
| JP7366485B2 (en) | 2020-07-01 | 2023-10-23 | エルジー エナジー ソリューション リミテッド | Battery packs and devices containing them |
| US20220109211A1 (en) * | 2020-09-30 | 2022-04-07 | Contemporary Amperex Technology Co., Limited | Bracket, battery assembly, and power consumption device |
| CN113594603A (en) * | 2021-06-16 | 2021-11-02 | 浙江零跑科技股份有限公司 | Battery pack and preparation method thereof |
| CN113809463A (en) * | 2021-09-16 | 2021-12-17 | 上汽通用汽车有限公司 | Battery pack, module tool and battery pack assembling method |
| CN113809463B (en) * | 2021-09-16 | 2024-01-12 | 上汽通用汽车有限公司 | Battery pack, module tool and battery pack assembling method |
| EP4345993A1 (en) * | 2022-09-30 | 2024-04-03 | CALB Co., Ltd. | Battery module and battery pack |
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