CN206849914U - A kind of battery module - Google Patents
A kind of battery module Download PDFInfo
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- CN206849914U CN206849914U CN201720748367.0U CN201720748367U CN206849914U CN 206849914 U CN206849914 U CN 206849914U CN 201720748367 U CN201720748367 U CN 201720748367U CN 206849914 U CN206849914 U CN 206849914U
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- Prior art keywords
- battery
- end plate
- faces
- battery module
- arcuate surface
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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- Battery Mounting, Suspending (AREA)
Abstract
The utility model provides a kind of battery module, including stacked battery and end plate, and stacked battery includes several batteries for stacking and setting, end plate is arranged at least one end in laminate stacks direction, end plate is A faces close to the one side of battery, and A faces contact with battery, and A faces are plane or concave panel；The another side relative with A faces is B faces on end plate, at least provided with a smooth concave curvatures on B faces；Apply the pretightning force to stacked battery on the border of concave curvatures at least one pair of opposite ends and/or border extended surface.The utility model solves the problems, such as that cell expansion is difficult to suppress, there is provided a kind of battery module, improves the ability of end plate resistance to deformation, effectively inhibits the deformation of battery.
Description
Technical field
It the utility model is related to a kind of battery module.
Background technology
With the fast development of new-energy automobile industry, lithium-ion-power cell turns into research heat due to having many advantages, such as
Point., it is necessary to which multiple batteries are assembled into battery module in actual use.The cell of battery module is formed in discharge and recharge
During can produce expansion, the expansion of battery mutually extrudes between easily causing battery, so as to influence the performance of battery module.
For above mentioned problem, the expansion of battery is limited usually through pretightning force is applied on the end plate at battery module both ends.
But find in actual use, the expansion of battery can cause end plate to produce deformation in itself or even destroy end plate, Wu Fayou
Effect suppresses the expansion of battery.
Utility model content
The utility model provides a kind of battery module, including stacked battery and end plate, stacked battery include several heaps
The folded battery set, end plate are arranged at least one end of stacked battery stacking direction, and end plate is A faces close to the one side of battery, A
Face contacts with battery, and A faces are plane or concave panel；The another side relative with A faces is B faces on end plate, and B is at least set on face
Put a smooth concave curvatures；Apply on the border of concave curvatures at least one pair of opposite ends and/or border extended surface pair
The pretightning force of stacked battery.
Concave curvatures can be a part and similar concave curvatures or spherical surface for cylindrical side surface
A part and similar concave curvatures.A part and similar concave curvatures for such as cylindrical side surface are recessed
Shape curved surface opposite end refers to the both ends for being located at curved surface opposite side in concave curvatures.A part for such as spherical surface and and its
Similar concave curvatures, concave curvatures opposite end refer to the both sides of at least one diameter of curved section.
Apply the pretension to stacked battery on the border of concave curvatures at least one pair of opposite ends or border extended surface
Power means：Pretightning force is applied to stacked battery on end plate, at least a pair of pretightning force, the force application location of pretightning force is located at
The relative both sides of concave curvatures, the section that the line of the force application location of at least two groups pretightning forces passes through the bending of same curved surface are bent
2 points of line.
Wherein, the cross section curve of bending refers to：Concave curvatures upper section is shaped as non-directional unclosed-section shape, i.e.,
The non-closed curve of the obtained non-rectilinear of concave curvatures is cut with a plane.Pretightning force refers to battery module in the assembled condition,
The pressure that connector applies through end plate to stacked battery.
After applying pretightning force (active force) to stacked battery by end plate, battery stack knows from experience opposite end plate and applies one
Reaction force.When a battery swells, because the expansion of end plate limitation battery, the reaction force can increase；To suppress the swollen of battery
Swollen, end plate needs that after the reaction force increase self-deformation can be resisted.
In fact, B faces are the one sides away from stacked battery on end plate.Smooth concave curvatures are set on B faces, and
Pretightning force is applied to stacked battery at the both ends of the cross section curve of the bending of concave curvatures；End plate is enabled to face battery
During the reaction force that layered product applies to end plate, component is being produced on the direction that stacked battery stacks.So improve
The ability of end plate resistance to deformation, can more effectively suppress the deformation of battery.The shape of concave curvatures and position on B faces, can
Designed according to the deformation after circulating battery.
In a kind of embodiment of the present utility model, a pair of pretightning forces at least are applied to stacked battery on B faces, extremely
The both ends of the force application location of few a pair of pretightning forces and the cross section curve of the bending of same concave curvatures are at grade.
In a kind of embodiment of the present utility model, the both ends of stacked battery respectively set an end plate.
In a kind of embodiment of the present utility model, concave curvatures are arcuate surface.
Arcuate surface on end plate plays a part of similar arch bridge in the utility model, to effectively improve end plate resistance to deformation
Ability, can more effectively suppress the deformation of battery.
In a kind of embodiment of the present utility model, arcuate surface is a part for spherical surface.
When the concrete shape of arcuate surface is a part for spherical surface on end plate, if all right at the whole edge of arcuate surface
If stacked battery applies pretightning force, arch can all produce component at whole edge, can further improve end plate and support
The ability of resistance to deformation, it can more effectively suppress the deformation of battery.
In a kind of embodiment of the present utility model, plane where the arch toe of arcuate surface is vertical with cell stacks direction.
Arch toe refers to there is two along the end that cell stacks direction is farthest apart from stacked battery, an arcuate surface on arcuate surface
Individual arch toe.
In a kind of embodiment of the present utility model, the arch toe of arcuate surface is parallel with a side of end plate.
In a kind of embodiment of the present utility model, B faces are arcuate surface；Plane and battery pile where the arch toe of arcuate surface
Folded direction is vertical；The arch toe of arcuate surface is parallel with a side of end plate.
In a kind of embodiment of the present utility model, two concave curvatures are provided with B faces, concave curvatures are smooth
Arcuate surface, two arch toes of same arcuate surface are parallel to each other, and the arch toe of different arcuate surfaces is mutually perpendicular to；To battery at each arch toe
Layered product applies pretightning force；In the arch toe of each arcuate surface is generally aligned in the same plane, each toe place plane of encircleing is hung down with cell stacks direction
Directly；The arch toe of two arcuate surfaces is parallel with two sides adjacent on end plate respectively.
The beneficial effects of the utility model：
The utility model is simple in construction, bent by the smooth spill of the one side setting away from stacked battery on end plate
Face, the ability of end plate resistance to deformation in the case where not changing end plate material, can be significantly improved, can more effectively suppress electricity
The deformation in pond.
Brief description of the drawings
Fig. 1 is the isometric view of battery module.
Fig. 2 is the isometric view in end plate B faces.
Fig. 3 is that the right side of end plate regards schematic diagram.
Fig. 4 is the isometric view in end plate A faces.
Fig. 5 is the schematic elevation view of end plate.
Fig. 6 is the isometric view of the battery module of embodiment two.
Fig. 7 is the isometric view in the end plate B faces of embodiment two.
Fig. 8 is that the right side of the end plate of embodiment two regards schematic diagram.
Fig. 9 is the isometric view in the end plate A faces of embodiment two.
Figure 10 is the schematic elevation view of the end plate of embodiment two.
Figure 11 is the schematic top plan view of the end plate of embodiment two.
Figure 12 is the isometric view of example IV battery module.
Figure 13 is the isometric view of example IV end plate.
Figure 14 is that the right side of example IV end plate regards schematic diagram.
Figure 15 is the isometric view of the battery module of embodiment five.
Figure 16 is the isometric view in the end plate B faces of embodiment five.
Figure 17 is that the right side of the end plate of embodiment five regards schematic diagram.
Figure 18 is the isometric view in the end plate A faces of embodiment five.
Figure 19 is the schematic top plan view of the end plate of embodiment five.
Description of reference numerals：
1：Stacked battery, 2：End plate, 21：A faces, 22：B faces, 23：Arch toe, 3：Glass fibre belt.
Embodiment
The utility model is described in detail following specific embodiment, but the utility model is not restricted to
Following examples.
Embodiment one：
As shown in figure 1, the utility model provides a kind of battery module, including stacked battery 1 and end plate 2, battery stack
Body 1 includes several batteries for stacking and setting, and end plate 2 is arranged on the one end in laminate stacks direction.
As shown in Figure 3, Figure 4, the one side that end plate 2 presses close to battery is A faces 21, and A faces 21 contact with battery, and A faces 21 are
Plane.
As shown in Fig. 2, Fig. 3 and Fig. 5, the another side relative with A faces 21 is B faces 22 on end plate 2, and one is set on B faces 22
Smooth arched surface；Stacked battery is applied at the both ends (or the outside at the both ends) of the cross section curve of a bending of curved surface
Add pretightning force.
The both ends of stacked battery 1 are each provided with an end plate 2.Can by setting connector between two end plates 2,
Stacked battery between end plate 2 and end plate is fixed together, pretightning force is applied to stacked battery by connector；Connection
Part is glass fibre belt 3.
Embodiment two
As shown in fig. 6, the utility model provides a kind of battery module, including stacked battery 1 and end plate 2, battery stack
Body 1 includes several batteries for stacking and setting, and end plate 2 is arranged on the one end in laminate stacks direction.
As shown in Fig. 7, Fig. 8, Fig. 9, Figure 10 and Figure 11, the one side that end plate 2 presses close to battery is A faces 21, and A faces 21 connect with battery
Touch, and A faces 21 are concave panel；The another side relative with A faces 21 is B faces 22 on end plate 2, set on B faces 22 one it is smooth
Concave curvatures, concave curvatures are arcuate surface, and the concrete shape of the arcuate surface is a part for spherical surface.
The both ends of stacked battery 1 respectively set an end plate 2, by setting connector between two end plates 2, by end plate
2 and stacked battery be fixed together, connector applies pretension at arch toe 23 outside of toe 23 (or arch) place to stacked battery
Power；Connector can be metal rod or glass fibre belt 3.
Embodiment three
As shown in Fig. 1, Fig. 3 and Fig. 4, the utility model provides a kind of battery module, including stacked battery 1 and end plate 2,
Stacked battery 1 includes several batteries for stacking and setting, and end plate 2 is arranged on the one end in laminate stacks direction, and end plate 2 is close to electricity
The one side in pond is A faces 21, and A faces 21 contact with battery, and A faces 21 are plane.
As shown in Fig. 2, Fig. 3 and Fig. 5, the another side relative with A faces 21 is B faces 22 on end plate 2, and one is set on B faces 22
Smooth concave curvatures；Smooth concave curvatures are arcuate surface, and the arcuate surface is a part for cylinder body side surface.The arcuate surface
The place plane of arch toe 23 it is vertical with cell stacks direction；The arch toe 23 of arcuate surface is parallel with a side of end plate 2；In arch
Arch toe 23 (or outside of the arch toe 23) place in face applies pretightning force to battery.
The both ends of stacked battery 1 are each provided with an end plate 2.Can by setting connector between two end plates 2,
Battery between end plate 2 and end plate is fixed together, pretightning force is applied to stacked battery by connector；Connector can be with
It is metal rod or glass fibre belt 3.
Example IV
As shown in figure 12, the utility model provides a kind of battery module, including stacked battery 1 and end plate 2, battery stack
Body 1 includes several batteries for stacking and setting, and end plate 2 is arranged on the one end in laminate stacks direction.
As shown in Figure 13, Figure 14, end plate 2 is A faces 21 close to the one side of battery, and A faces 21 contact with battery, and A faces 21
For concave panel.The another side relative with A faces 21 is B faces 22 on end plate 2, and B faces 22 are arcuate surface, and the arcuate surface is cylinder side table
The part in face and be smooth concave curvatures.The place plane of arch toe 23 and the battery at stacked battery both ends of arcuate surface are put down
OK, the arch toe 23 of arcuate surface is parallel with a side of end plate 2；Pretightning force is applied to battery at the arch toe 23 of arcuate surface.
The both ends of stacked battery 1 are each provided with an end plate 2.Can by setting connector between two end plates 2,
Battery between end plate 2 and end plate is fixed together, pretightning force is applied to stacked battery using connector；Connector can be with
It is metal rod or glass fibre belt 3.
Embodiment five
As shown in Figure 15, Figure 17 and Figure 18, the utility model provides a kind of battery module, including stacked battery 1 and end
Plate 2, stacked battery 1 include several batteries for stacking and setting, and end plate 2 is arranged on the one end in laminate stacks direction, and end plate 2 pastes
The one side of nearly battery is A faces 21, and A faces 21 contact with battery, and A faces 21 are plane.
As shown in Figure 16, Figure 17 and Figure 19, the another side relative with A faces 21 is B faces 22 on end plate 2, is provided with B faces 22
Two concave curvatures, concave curvatures are smooth arcuate surface, and arcuate surface is a part for cylinder body side surface.Same arcuate surface
Two arch toes 23 are parallel to each other, and the arch toe 23 of different arcuate surfaces is mutually perpendicular to；In the arch toe 23 of each arcuate surface is generally aligned in the same plane,
The arch place plane of toe 23 of arcuate surface is parallel with the battery at stacked battery both ends, and stacked battery is applied in the outside of arch toe 23
Pretightning force.
The both ends of stacked battery 1 respectively set an end plate 2；Projection of shape of the end plate 2 on cell stacks direction is square
Shape, the arch toe 23 of two arcuate surfaces are parallel with two adjacent sides of rectangle respectively.It can be connected by being set between two end plates 2
Part, the battery between end plate 2 and end plate is fixed together, pretightning force is applied to stacked battery using connector；Connector
Can be metal rod or glass fibre belt 3.
It should be noted that two arcuate surfaces are identical, all arch toes are generally aligned in the same plane interior.Between two arcuate surfaces
With smooth plane/curved surface connection.
It is described above, the only preferable embodiment of the utility model, but the scope of protection of the utility model is not
This is confined to, any one skilled in the art can readily occur in the technical scope that the utility model discloses
Change or replacement, should all cover within the scope of protection of the utility model.Therefore, the scope of protection of the utility model should
It is defined by the protection domain of claims.
Claims (13)
1. a kind of battery module, including stacked battery and end plate, the stacked battery includes several batteries for stacking and setting,
The end plate is arranged at least one end of stacked battery stacking direction, it is characterised in that：One side of the end plate close to battery
For A faces, A faces contact with battery, and A faces are plane or concave panel；The another side relative with the A faces is B faces on end plate,
At least provided with a concave curvatures on the B faces；In the border of concave curvatures at least one pair of opposite ends and/or border extended surface
The upper pretightning force applied to stacked battery.
A kind of 2. battery module as claimed in claim 1, it is characterised in that：At least stacked battery is applied on the B faces
Add a pair of pretightning forces, the force application location of at least one pair of pretightning force is with the both ends of the cross section curve of the bending of same curved surface same
In plane.
A kind of 3. battery module as claimed in claim 1, it is characterised in that：The both ends of the stacked battery respectively set one
End plate.
A kind of 4. battery module as claimed in claim 1, it is characterised in that：The concave curvatures are arcuate surface.
A kind of 5. battery module as claimed in claim 4, it is characterised in that：The arcuate surface is a part for spherical surface.
A kind of 6. battery module as claimed in claim 4, it is characterised in that：Plane and battery where the arch toe of the arcuate surface
Stacking direction is vertical.
A kind of 7. battery module as claimed in claim 4, it is characterised in that：The arch toe of the arcuate surface and a side of end plate
Side is parallel.
A kind of 8. battery module as claimed in claim 1, it is characterised in that：The B faces are arcuate surface.
A kind of 9. battery module as claimed in claim 8, it is characterised in that：Plane and battery where the arch toe of the arcuate surface
Stacking direction is vertical.
A kind of 10. battery module as claimed in claim 8, it is characterised in that：One that encircles toe and end plate of the arcuate surface
Side is parallel.
A kind of 11. battery module as claimed in claim 1, it is characterised in that：Two concave curvatures are provided with the B faces,
The concave curvatures are smooth arcuate surface, and two arch toes of same arcuate surface are parallel to each other, and the arch toe of different arcuate surfaces is mutual
Vertically.
A kind of 12. battery module as claimed in claim 11, it is characterised in that：The arch toe of each arcuate surface is positioned at same flat
In face, plane where each arch toe is vertical with cell stacks direction.
A kind of 13. battery module as claimed in claim 11, it is characterised in that：The arch toe of described two arcuate surfaces respectively with end
Two adjacent sides are parallel on plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748367.0U CN206849914U (en) | 2017-06-26 | 2017-06-26 | A kind of battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720748367.0U CN206849914U (en) | 2017-06-26 | 2017-06-26 | A kind of battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206849914U true CN206849914U (en) | 2018-01-05 |
Family
ID=60802387
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720748367.0U Active CN206849914U (en) | 2017-06-26 | 2017-06-26 | A kind of battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206849914U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112514144A (en) * | 2019-06-25 | 2021-03-16 | 株式会社Lg化学 | Battery module and battery pack including the same |
| WO2022065841A1 (en) * | 2020-09-22 | 2022-03-31 | 주식회사 엘지에너지솔루션 | Battery module, battery pack comprising same, and vehicle |
| CN114976450A (en) * | 2021-02-19 | 2022-08-30 | 本田技研工业株式会社 | End plate and storage battery module |
-
2017
- 2017-06-26 CN CN201720748367.0U patent/CN206849914U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112514144A (en) * | 2019-06-25 | 2021-03-16 | 株式会社Lg化学 | Battery module and battery pack including the same |
| US11515593B2 (en) | 2019-06-25 | 2022-11-29 | Lg Energy Solution, Ltd. | Battery module and battery pack including the same |
| CN112514144B (en) * | 2019-06-25 | 2023-10-13 | 株式会社Lg新能源 | Battery module and battery pack including the same |
| WO2022065841A1 (en) * | 2020-09-22 | 2022-03-31 | 주식회사 엘지에너지솔루션 | Battery module, battery pack comprising same, and vehicle |
| CN114976450A (en) * | 2021-02-19 | 2022-08-30 | 本田技研工业株式会社 | End plate and storage battery module |
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