CN207818694U - Battery modules - Google Patents

Battery modules Download PDF

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Publication number
CN207818694U
CN207818694U CN201820110062.1U CN201820110062U CN207818694U CN 207818694 U CN207818694 U CN 207818694U CN 201820110062 U CN201820110062 U CN 201820110062U CN 207818694 U CN207818694 U CN 207818694U
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China
Prior art keywords
end plate
sub
main body
flanging
partition board
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Active
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CN201820110062.1U
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Chinese (zh)
Inventor
赛羊羊
高建星
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Contemporary Amperex Technology Co Ltd
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Contemporary Amperex Technology Co Ltd
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Priority to CN201820110062.1U priority Critical patent/CN207818694U/en
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/10Energy storage using batteries

Abstract

The utility model provides a kind of battery modules comprising multiple battery sequences, first end plate, the second end plate and two side plates.Each battery sequence includes multiple batteries being sequentially arranged along longitudinal direction, and the multiple battery sequence is transversely sequentially arranged.First end plate and the second end plate are located at the multiple battery sequence both ends along longitudinal direction and the multiple battery sequence are clamped.Described two side plates are located at the both sides of the multiple battery sequence transversely, and first end plate, the second end plate are fixedly connected with described two side plates and are formed frame structure, and the frame structure fixes the multiple battery sequence.Partition board is equipped between two neighboring battery sequence.Partition board has main body and the first flanging;Main body separates two battery sequences, and the one end of main body along longitudinal direction passes through first end plate;First flanging is connected with the described one end of main body along longitudinal direction, and the first flanging bends relative to main body and is fixed on the outer surface of first end plate.

Description

Battery modules
Technical field
The utility model is related to field of batteries more particularly to a kind of battery modules.
Background technology
The structure design of battery modules needs to consider the influence of cell expansion power, prevents effect of the battery modules because of expansive force And it destroys.
Battery modules generally include two end plates, two side plates and multiple batteries, described two end plates and two side plates It is centered around the periphery of the multiple battery and connects rectangular frame structure, the frame structure fixes and supports the multiple Battery.
When the multiple battery arrangement is multiple rows of (the multiple batteries respectively arranged form a line), need in adjacent two rows of batteries One partition board of centre setting, this partition board needs and end plate is welded.Common way is that slot is opened up on end plate, then will The end of partition board is inserted into slot, then carries out butt welding to the place of partition board and end plate contact.But butt welding intensity itself Smaller, when cell expansion deforms, the weld of partition board and end plate can become weak link, be easy to happen destruction, lead to battery Module fails.In addition, the butt welding is more demanding to the fit clearance of partition board and slot, when gap is excessive, welding difficulty is big And the laser of welding may go through the gap, and battery is caused to be burnt;When gap is too small, the assembly difficulty of partition board and slot Greatly.
Utility model content
The problem of in view of background technology, the purpose of this utility model is to provide a kind of battery modules, can carry The ability of the high anti-dilatancy of battery modules.
To achieve the goals above, the utility model provides a kind of battery modules comprising multiple battery sequences, first End plate, the second end plate and two side plates.Each battery sequence includes multiple batteries being sequentially arranged along longitudinal direction, the multiple battery Sequence is transversely sequentially arranged.First end plate and the second end plate are located at the multiple battery sequence both ends along longitudinal direction and folder Hold the multiple battery sequence.Described two side plates are located at the both sides of the multiple battery sequence transversely, first end plate, Second end plate is fixedly connected with described two side plates and is formed frame structure, and the frame structure fixes the multiple battery sequence Row.Partition board is equipped between two neighboring battery sequence.Partition board has main body and the first flanging;Main body by two battery sequences every It opens, and the one end of main body along longitudinal direction passes through first end plate;First flanging is connected with the described one end of main body along longitudinal direction, and the first folding While the outer surface of first end plate is bent and is fixed on relative to main body.
The beneficial effects of the utility model are as follows:
In battery modules according to the present utility model, the first flanging of partition board is bent relative to main body, with first end Plate contacts for face, so having larger joint face between the first flanging and first end plate, bonding strength is high.This folding of partition board Side structure can effectively increase partition board and the bonding strength of first end plate, avoid the Joint failure in cell expansion, improve electricity The ability of the anti-dilatancy of pond module.
Description of the drawings
Fig. 1 is the schematic diagram according to an embodiment of the battery modules of the utility model.
Fig. 2 is the front view of the battery modules of Fig. 1.
Fig. 3 is the rough schematic view of the battery modules of Fig. 1.
Fig. 4 is one schematic diagram of the second end plate according to the battery modules of the utility model.
Fig. 5 is the schematic diagram according to the partition board of the battery modules of the utility model.
Fig. 6 is according to the schematic diagram before the splitter plate molding of the battery modules of the utility model.
Fig. 7 is the schematic diagram according to another embodiment of the battery modules of the utility model.
Fig. 8 is the front view of the battery modules of Fig. 7.
Fig. 9 to Figure 12 is the schematic diagram according to the different embodiments of the first end plate of the battery modules of the utility model.
Figure 13 is another schematic diagram according to the second end plate of the battery modules of the utility model.
Wherein, the reference numerals are as follows:
1 battery sequence, 521 first sub- flanging
11 battery, 53 second flanging
2 first end plate, 531 second sub- flanging
21 first sub- end plate F fasteners
22 second sub- end plate G notches
3 second end plate H through-holes
The welding sections 31 thirds sub- end plate P
32 the 4th gaps sub- end plate S
4 side plate X are longitudinal
5 partition board Y are lateral
51 main body Z upper and lower directionss
52 first flangings
Specific implementation mode
It is described in detail the battery modules of the utility model with reference to the accompanying drawings.
Referring to figs. 1 to Figure 13, battery modules according to the present utility model include multiple battery sequences 1, first end plate 2, Two end plates 3 and two side plates 4.Each battery sequence 1 includes the battery 11 that multiple X along longitudinal direction are sequentially arranged, the multiple battery Transversely Y is sequentially arranged sequence 1.First end plate 2 and the second end plate 3 be located at the multiple battery sequence 1 along longitudinal direction X two It holds and the multiple battery sequence 1 is clamped.Described two side plates 4 be located at the multiple battery sequence 1 transversely Y two Side, first end plate 2, the second end plate 3 are fixedly connected with described two side plates 4 and are formed frame structure, and the frame structure is fixed The multiple battery sequence 1.Partition board 5 is equipped between two neighboring battery sequence 1.Partition board 5 has main body 51 and the first flanging 52; Main body 51 separates two battery sequences 1, and main body 51 along longitudinal direction X one end pass through first end plate 2;First flanging 52 and main body Described one end of 51 X along longitudinal direction is connected, and the first flanging 52 bends relative to main body 51 and be fixed on the appearance of first end plate 2 Face.
In battery modules according to the present utility model, the first flanging 52 of partition board 5 is bent relative to main body 51, with the End plate 2 contacts for face, so having larger joint face between the first flanging 52 and first end plate 2, bonding strength is high.Partition board 5 this folded edges can effectively increase the bonding strength of partition board 5 and first end plate 2, avoid connecting when battery 11 expands Failure is connect, the ability of the anti-dilatancy of battery modules is improved.
Preferably, main body 51 along longitudinal direction X the other end pass through the second end plate 3;With reference to Fig. 5, partition board 5 also has and main body 51 The other end be connected the second flanging 53, the second flanging 53 bends relative to main body 51 and is fixed on the appearance of the second end plate 3 Face.Similarly, there is larger joint face, bonding strength is high, to improve battery mould between the second flanging 53 and the second end plate 3 The ability of the anti-dilatancy of group.
Referring to Fig.1, the frame structure that first end plate 2, the second end plate 3 and described two side plates 4 surround is rectangle, each side plate The both ends of 4 X along longitudinal direction are respectively welded in first end plate 2 and the second end plate 3.It is equipped between the adjacent battery sequence 1 of any two Partition board 5.
Since the first flanging 52 is folded into the outer surface of first end plate 2, so lap-welded side can be used in the first flanging 52 Formula is fixed to first end plate 2.Butt welding compared with the existing technology, overlap welding have higher weld strength, can effectively carry The ability of the high anti-dilatancy of battery modules.Similarly, the second flanging 53 can also be used lap-welded mode and be fixed to second end Plate 3.
Referring to Fig.1 and Fig. 5, the main body 51 of partition board 5 is perpendicular to lateral Y, and first end plate 2 and the second end plate 3 are perpendicular to vertical To X.When the first flanging 52 attaches to first end plate 2, the first flanging 52 and the angle of main body 51 are 90 °.Likewise, when second When flanging 53 attaches to the second end plate 3, the second flanging 53 and the angle of main body 51 are 90 °.
The surface of the main body 51 of partition board 5 is equipped with insulating layer (not shown).Insulating layer can be by the battery sequence of 51 both sides of main body The insulation of row 1 separates.
Multiple embodiments of the battery modules of the utility model are explained in detail below.
In the first embodiment of battery modules according to the present utility model, referring to figs. 1 to Fig. 5, first end plate 2 is integrated The tablet of formula.
With reference to Fig. 2, first end plate 2 is equipped with through-hole H, and one end of the main body 51 of partition board 5 X along longitudinal direction passes through through-hole H, partition board 5 the first flanging 52 is connected with described one end and is fixed on the outer surface of first end plate 2.
With reference to Fig. 2, the first flanging 52 of partition board 5 includes the multiple first sub- flangings 521, the multiple first sub- flanging 521 Z is sequentially arranged along the vertical direction.Each first sub- flanging 521 is welded in the outer surface of first end plate 2.Wherein, with reference to Fig. 3, part The side of first sub- flanging 521 towards the transversely Y of main body 51 bends, and remaining first sub- flanging 521 is towards the transversely Y of main body 51 The other side is bent.Alternatively, of course, the multiple first sub- flanging 521 can also be towards the same side of the transversely Y of main body 51 Bending.
With reference to Fig. 4, through-hole H may also set up on the second end plate 3, the other end of the main body 51 of partition board 5 X along longitudinal direction passes through second The through-hole H of end plate 3.Second flanging 53 of partition board 5 is connected with the other end and is welded in the outer surface of the second end plate 3.
With reference to Fig. 5, the second flanging 53 of partition board 5 includes multiple independent second sub- flangings 531, the multiple second son folding Z is sequentially arranged along the vertical direction on side 531.Each second sub- flanging 531 is welded in the outer surface of the second end plate 3.Wherein, reference Fig. 5, The side of the second sub- flanging 531 of part towards the transversely Y of main body 51 are bent, and remaining second sub- flanging 531 is towards main body 51 along cross It is bent to the other side of Y.Alternatively, of course, the multiple second sub- flanging 531 also can be towards the same of the transversely Y of main body 51 Side is bent.
In the second embodiment of battery modules according to the present utility model, referring to Fig.1 0, first end plate 2 is integral type Tablet.
First end plate 2 is equipped with notch G, and one end of the main body 51 of partition board 5 X along longitudinal direction passes through notch G, and the first of partition board 5 Flanging 52 is connected with described one end and is fixed on the outer surface of first end plate 2.The battery modules further include fastener F, setting In the opening of notch G, and connect the part that first end plate 2 is located at the both sides notch G.Notch G can be U-shaped.
Preferably, notch G's is opening up.It, can be in advance by 5 bending forming of partition board, in assemble in diaphragm 5 and the with reference to Fig. 5 When end plate 2, partition board 5 can be inserted into via the opening of notch G in notch G.Certainly, with reference to Fig. 6, partition board 5 can also be inserted into It is bent again after to notch G.
Notch G divides first end plate 2 for two parts, and the intensity of the two-part junction is relatively low, and tight by being arranged Firmware F can improve the two-part bonding strength of first end plate 2.
Notch G can be set on the second end plate 3, and the other end of the main body 51 of partition board 5 X along longitudinal direction passes through lacking for the second end plate 3 Mouth G.Second flanging 53 of partition board 5 is connected with the other end and is welded in the outer surface of the second end plate 3.Alternatively, of course, Through-hole H is may also set up on second end plate 3.
In the 3rd embodiment of battery modules according to the present utility model, with reference to Fig. 7 and Fig. 8, first end plate 2 includes only The first vertical sub- end plate 21 and the second sub- end plate 22.
There are gap S between first sub- end plate 21 and the second sub- end plate 22, the main body 51 of partition board 5 along longitudinal direction X one end from Gap S is pierced by, and the first flanging 52 of partition board 5 is connected with described one end and is fixed on the outer surface of first end plate 2.
First flanging 52 of partition board 5 includes the multiple first sub- flangings 521, and the multiple first sub- flanging 521 is vertically square It is sequentially arranged to Z.The side of the first sub- flanging 521 of part towards the transversely Y of main body 51 bend and are fixed on the first sub- end plate 21, The other side of remaining first sub- flanging 521 towards the transversely Y of main body 51 bend and are fixed on the second sub- end plate 22.First sub- end plate 21 are fixedly connected with the second sub- end plate 22 via the multiple first sub- flanging 521.
It, can be by welding or fastener by the in order to improve the bonding strength of the first sub- end plate 21 and the second sub- end plate 22 The both ends of one sub- end plate 21 Z along the vertical direction are respectively fixed to the both ends of the second sub- end plate 22 Z along the vertical direction.
Specifically, with reference to Fig. 8 and Fig. 9, the upper end of the first sub- end plate 21 Z along the vertical direction can be fixed on by fastener F The upper end of second sub- end plate 22 Z along the vertical direction, and the lower end of the first sub- end plate 21 Z along the vertical direction can be solid by fastener F Due to the lower end of the second sub- end plate 22 Z along the vertical direction.In above-below direction on Z, the multiple first sub- flanging 521 is located at two Between fastener F.
With reference to Fig. 5, can in advance by 5 bending forming of partition board, in assemble in diaphragm 5 and first end plate 2, partition board 5 can directly from Top is inserted into the S of gap, then installs fastener F again.Certainly, partition board 5 can also again be bent after being inserted into gap S.
Alternatively, referring to Fig.1 1, the upper end of the first sub- end plate 21 Z along the vertical direction can be fixed on by fastener F The upper end of two sub- end plates 22 Z along the vertical direction, and the lower end of the first sub- end plate 21 Z along the vertical direction can be by being fixedly welded on The lower end of two sub- end plates 22 Z along the vertical direction.In above-below direction on Z, the multiple first sub- flanging 521 be located at fastener F with Between the P of welding section.Referring to Fig.1 2, the upper end of the first sub- end plate 21 Z along the vertical direction can also be by being fixedly welded on the second sub- end The upper end of the Z along the vertical direction of plate 22, and the lower end of the first sub- end plate 21 Z along the vertical direction can be by being fixedly welded on the second sub- end The lower end of the Z along the vertical direction of plate 22.
With reference to Fig. 4, through-hole H can be set, the other end of the main body 51 of partition board 5 X along longitudinal direction passes through second end on the second end plate 3 The through-hole H of plate 3.Second flanging 53 of partition board 5 is connected with the other end and is welded in the outer surface of the second end plate 3.
In the fourth embodiment of battery modules according to the present utility model, with reference to Fig. 7, Fig. 8 and Figure 13, first end plate 2 Including the independent first sub- end plate 21 and the second sub- end plate 22, the second end plate 3 includes sub- 31 and the 4th son of end plate of independent third End plate 32.
With reference to Fig. 8, there are gap S between the first sub- end plate 21 and the second sub- end plate 22, the main body 51 of partition board 5 X along longitudinal direction One end be pierced by from gap S, the first flanging 52 of partition board 5 is connected with described one end and is fixed on the outer surface of first end plate 2.
With reference to Fig. 8, the first flanging 52 of partition board 5 includes the multiple first sub- flangings 521, the multiple first sub- flanging 521 Z is sequentially arranged along the vertical direction.The side of the first sub- flanging 521 of part towards the transversely Y of main body 51 bend and are fixed on first The other side of sub- end plate 21, remaining first sub- flanging 521 towards the transversely Y of main body 51 bends and is fixed on the second sub- end plate 22. First sub- end plate 21 is fixedly connected with the second sub- end plate 22 via the multiple first sub- flanging 521.
It, can be by welding or fastener by the in order to improve the bonding strength of the first sub- end plate 21 and the second sub- end plate 22 The both ends of one sub- end plate 21 Z along the vertical direction are respectively fixed to the both ends of the second sub- end plate 22 Z along the vertical direction.
Referring to Fig.1 3, there are gap S between sub- 31 and the 4th sub- end plate 32 of end plate of third, the main body 51 of partition board 5 X along longitudinal direction The other end be pierced by from gap S, the second flanging 53 of partition board 5 is connected with the other end and is fixed on the appearance of the second end plate 3 Face.

Claims (10)

1. a kind of battery modules, including multiple battery sequences (1), first end plate (2), the second end plate (3) and two side plates (4);
Each battery sequence (1) includes the batteries (11) that (X) is sequentially arranged multiple along longitudinal direction, and the multiple battery sequence (1) is along cross It is sequentially arranged to (Y);
First end plate (2) and the second end plate (3) are located at the multiple battery sequence (1) both ends of (X) and clamping along longitudinal direction The multiple battery sequence (1);
Described two side plates (4) are located at the both sides of the multiple battery sequence (1) transversely (Y), first end plate (2), Two end plates (3) are fixedly connected with and are formed frame structure with described two side plates (4), and the frame structure fixes the multiple battery Sequence (1);
It is characterized in that,
Partition board (5) is equipped between two neighboring battery sequence (1);
Partition board (5) has main body (51) and the first flanging (52);Main body (51) separates two battery sequences (1), and main body (51) one end of (X) passes through first end plate (2) along longitudinal direction;Described one end of first flanging (52) and main body (51) (X) along longitudinal direction It is connected, and the first flanging (52) bends relative to main body (51) and is fixed on the outer surface of first end plate (2).
2. battery modules according to claim 1, which is characterized in that the surface of the main body (51) of partition board (5) is equipped with insulation Layer.
3. battery modules according to claim 1, which is characterized in that first end plate (2) is equipped with through-hole (H), partition board (5) Main body (51) along longitudinal direction (X) described one end pass through through-hole (H).
4. battery modules according to claim 1, which is characterized in that
First end plate (2) is equipped with notch (G), and described one end of the main body (51) of partition board (5) (X) along longitudinal direction passes through notch (G);
The battery modules further include fastener (F), are set to the opening of notch (G), and connect first end plate (2) positioned at scarce The part of mouth both sides (G).
5. battery modules according to claim 3 or 4, which is characterized in that
The first flanging (52) of partition board (5) includes the multiple first sub- flangings (521), and the multiple first sub- flanging (521) is along upper Lower direction (Z) is sequentially arranged;
The multiple first sub- flanging (521) towards main body (51) transversely (Y) the same side bend;Alternatively, the first son of part The side of flanging (521) towards main body (51) transversely (Y) is bent, and remaining first sub- flanging (521) is towards main body (51) along cross It is bent to the other side of (Y).
6. battery modules according to claim 1, which is characterized in that
First end plate (2) includes the first sub- end plate (21) and the second sub- end plate (22) being fixedly connected, and the first sub- end plate (21) And second there are gap (S) between sub- end plate (22);
Described one end of the main body (51) of partition board (5) (X) along longitudinal direction is pierced by from gap (S).
7. battery modules according to claim 6, which is characterized in that
The first flanging (52) of partition board (5) includes the multiple first sub- flangings (521), and the multiple first sub- flanging (521) is along upper Lower direction (Z) is sequentially arranged;
The side of the first sub- flanging of part (521) towards main body (51) transversely (Y) bends and is fixed on the first sub- end plate (21), The other side of remaining first sub- flanging (521) towards main body (51) transversely (Y) bends and is fixed on the second sub- end plate (22).
8. the battery modules described according to claim 6 or 7, which is characterized in that the first sub- end plate (21) is along the vertical direction (Z) Both ends are individually fixed in the both ends of the second sub- end plate (22) (Z) along the vertical direction.
9. battery modules according to claim 8, which is characterized in that
First sub- end plate (21) along the vertical direction (Z) upper end by welding or fastener (F) be fixed on the second sub- end plate (22) The upper end of (Z) along the vertical direction;
First sub- end plate (21) along the vertical direction (Z) lower end by welding or fastener (F) be fixed on the second sub- end plate (22) The lower end of (Z) along the vertical direction.
10. battery modules according to claim 1, which is characterized in that
Main body (51) along longitudinal direction (X) the other end pass through the second end plate (3);
Partition board (5) also has the second flanging (53) that is connected with the other end of main body (51), and the second flanging (53) is relative to master Body (51) bends and is fixed on the outer surface of the second end plate (3).
CN201820110062.1U 2018-01-23 2018-01-23 Battery modules Active CN207818694U (en)

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Application Number Priority Date Filing Date Title
CN201820110062.1U CN207818694U (en) 2018-01-23 2018-01-23 Battery modules

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Application Number Priority Date Filing Date Title
CN201820110062.1U CN207818694U (en) 2018-01-23 2018-01-23 Battery modules

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Publication Number Publication Date
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020177641A1 (en) * 2019-03-04 2020-09-10 宁德新能源科技有限公司 Packaging housing and battery pack
JP2020155228A (en) * 2019-03-18 2020-09-24 株式会社Gsユアサ Power storage device and manufacturing method thereof
CN116885378A (en) * 2023-09-05 2023-10-13 宁德时代新能源科技股份有限公司 Battery module, battery and electric equipment
WO2023230827A1 (en) * 2022-05-31 2023-12-07 宁德时代新能源科技股份有限公司 Box assembly, battery module, battery, and electrical apparatus

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020177641A1 (en) * 2019-03-04 2020-09-10 宁德新能源科技有限公司 Packaging housing and battery pack
US11380957B2 (en) 2019-03-04 2022-07-05 Ningde Amperex Technology Limited Battery package housing and battery pack
JP2020155228A (en) * 2019-03-18 2020-09-24 株式会社Gsユアサ Power storage device and manufacturing method thereof
JP7247683B2 (en) 2019-03-18 2023-03-29 株式会社Gsユアサ Power storage device and manufacturing method thereof
WO2023230827A1 (en) * 2022-05-31 2023-12-07 宁德时代新能源科技股份有限公司 Box assembly, battery module, battery, and electrical apparatus
CN116885378A (en) * 2023-09-05 2023-10-13 宁德时代新能源科技股份有限公司 Battery module, battery and electric equipment

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