CN207250612U - End plate and battery pack - Google Patents
End plate and battery pack Download PDFInfo
- Publication number
- CN207250612U CN207250612U CN201721277232.7U CN201721277232U CN207250612U CN 207250612 U CN207250612 U CN 207250612U CN 201721277232 U CN201721277232 U CN 201721277232U CN 207250612 U CN207250612 U CN 207250612U
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- CN
- China
- Prior art keywords
- end plate
- bolster
- main body
- battery
- plate main
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Classifications
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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
This application involves battery to assemble technical field, more particularly to a kind of end plate, further relates to a kind of battery pack.The end plate includes end plate main body and bolster, and the end plate main body has along the both sides of its thickness directional spreding, and the side of the end plate main body sets the battery, and the end plate main body is contacted with the battery；The bolster is connected to the opposite side of the end plate main body, and the bolster protrudes from the end plate main body, and the bolster is contacted with the babinet, and the bolster has elasticity.End plate provided herein can prevent battery from the situation that expansion causes the box deformation of battery pack or even fails occur.
Description
Technical field
This application involves battery to assemble technical field, more particularly to a kind of end plate, further relates to a kind of battery pack.
Background technology
It is known that the battery that can be recycled generally comprises babinet, end plate and multiple batteries, multiple batteries are in a set pattern
Then it is arranged in babinet, end plate is provided between battery and babinet.And end plate is usually to pass through extrusion molding by rigid material
What mode made；Simultaneously as battery is in the cyclic process of discharge and recharge, inevitably because expansion causes own vol to increase
Greatly, and then battery can extrude end plate, and since the deformability of end plate is extremely limited, so end plate can only continue to extrude battery pack
Babinet, babinet expendable deformation is occurred, babinet may be caused to fail and scrap, it is also possible to the peace of battery in babinet
Have a negative impact entirely.
Utility model content
This application provides a kind of end plate and battery pack, to prevent because cell expansion causes box deformation or even the feelings to fail
Condition.
The first aspect of the application provides a kind of end plate, including end plate main body, and the end plate main body has thick along itself
The both sides of directional spreding are spent, the side of the end plate main body sets the battery, and the end plate main body is contacted with the battery；
Bolster, the bolster is connected to the opposite side of the end plate main body, and the bolster protrudes from the end
Plate main body, the bolster are contacted with the babinet, and the bolster has elasticity.
Preferably, the bolster is strip structure, and its extending direction is identical with the short transverse of the battery.
Preferably, on the length direction of the battery, the bolster is arranged on the intermediate region of the end plate main body.
Preferably, on the length direction, the thickness of the end plate main body is from the both ends of the end plate main body to described
Intermediate region gradually increases.
Preferably, loss of weight chamber is provided with the end plate main body, and the loss of weight chamber is in the short transverse of the battery
Through the end plate main body；
Multiple reinforcing plates are provided with the loss of weight chamber, multiple reinforcing plates extend along the short transverse.
Preferably, the bolster has accommodating chamber, and the accommodating chamber runs through the bolster in the short transverse,
And it is filled with flexible material in the accommodating chamber.
Preferably, the end plate main body is detachably connected with the bolster.
Preferably, sliding slot is provided with the end plate main body, the bolster includes inserting section,
The inserting section is slidably connected with the sliding slot, and the sliding slot and the inserting section are in the thickness side of the battery
Coordinate to upper limit.
Preferably, the bolster further includes planar section and two side plate bendings,
The planar section is connected by two side plate bendings with the inserting section, and on the thickness direction, two
The side plate bending is protruded to direction away from each other.
The application second aspect also provides a kind of battery pack, which includes babinet, multiple batteries and any of the above-described
The end plate provided, wherein：
Multiple batteries are arranged in the babinet along its thickness direction, are set between the babinet and the battery
End plate is stated, and the end plate main body is contacted with the battery, the bolster is contacted with the babinet.
The technical solution that the application provides can reach following beneficial effect：
In end plate provided herein, the side of end plate main body is provided with battery, and the opposite side of end plate main body is connected with
Bolster, when battery expands phenomenon, battery can extrude bolster by end plate main body, and elastic bolster is squeezed
It can deform upon, this can prevent during cell expansion babinet to be squeezed power effect and deform, can be with protection setting in case
Internal battery is without damage.
It should be appreciated that the general description and following detailed description of the above are only exemplary, this can not be limited
Application.
Brief description of the drawings
The top view for the end plate that Fig. 1 is provided by the embodiment of the present application；
The structure diagram for the battery pack that Fig. 2 is provided by the embodiment of the present application；
The top view for the battery pack that Fig. 3 is provided by the embodiment of the present application.
Reference numeral：
1- end plate main bodys；
11- loss of weight chambers；
12- reinforcing plates；
13- sliding slots；
2- bolsters；
21- accommodating chambers；
22- inserting sections；
23- planar sections；
24- side plate bendings；
3- batteries；
4- babinets.
Attached drawing herein is merged in specification and forms the part of this specification, shows the implementation for meeting the application
Example, and be used to together with specification to explain the principle of the application.
Embodiment
The application is described in further detail below by specific embodiment and with reference to attached drawing.
As shown in Figure 1, the embodiment of the present application provides a kind of end plate, the end plate can be arranged on battery in battery pack with
Between babinet, it includes end plate main body 1 and bolster 2, and bolster 2 can be connected in end plate main body 1, and bolster 2 is relatively held
Plate main body 1, closer to the babinet (not shown) of battery pack, further from battery (not shown)；It may also be said that end plate master
The both sides in body 1 along its thickness direction set battery and bolster 2 respectively, and bolster 2 is located in end plate main body 1 and battery pack
Babinet between；Bolster 2 can be contacted with the interior of battery pack, and bolster 2 has elasticity, i.e., bolster 2 has
There is the ability of stress deformation.
Specifically, end plate main body 1 can be metal rigidity platy structure, squeezed as end plate main body 1 can pass through for metallic aluminium
Go out molding mode to be formed, those skilled in the art can determine the ruler of end plate main body 1 in all directions according to actual conditions
Very little, as the height of end plate main body 1 can be equal with the height of battery, this can enable end plate main body 1 more fully bear battery
The extruding force brought；Correspondingly, on the length direction of battery, the size of end plate main body 1 can also be equal sized with battery.
Bolster 2 is made of the material with certain elasticity capacity, as bolster 2 can use spring steel making, people in the art
Member can be according to the size of end plate main body 1, the size of flexible design bolster 2；Bolster 2 can connect by welding
In on a side surface of end plate main body 1, bolster 2 can also be connected in end plate main body 1 by dismountable mode；Its
In, surface that end plate main body 1 is contacted with battery, and the surface that bolster 2 is contacted with the babinet of battery pack can be both provided with
Planar structure, to increase contact area, and then can be such that power gentler must can be transmitted between foregoing four.Need what is illustrated
It is that the length and thickness direction of battery can be respectively X-direction and Y-direction shown in Fig. 1, the short transverse of battery does not exist
Shown in figure, the direction can be the direction vertical with X-direction and Y-direction.
Above-mentioned to understand, end plate provided herein can be arranged in battery pack between battery and babinet, end plate main body 1
Both sides be respectively battery and bolster 2, bolster 2 has elasticity, and when battery expands, battery can extrude end plate main body
1, end plate main body 1 may proceed to extruding bolster 2, the babinet without directly extruding battery pack, and bolster 2 is being squeezed power
When elastic deformation can occur, it is clear that, this can prevent because cell expansion cause battery pack box deformation in addition fail feelings
Condition.
Further, bolster 2 can be strip structure, and in general, during expansion, it is in oneself height direction for battery
On expansion amplitude, become apparent from relative to the expansion amplitude on its length direction, thus, the bolster 2 of strip structure
Extending direction can be identical with the short transverse of battery.
Specifically, the length of the bolster 2 of strip structure can be equal with the height of end plate main body 1 so that bolster 2 can
To be supported in the tank floor of battery pack；Certainly, the length of bolster 2 might be less that the height of end plate main body 1, and can be with
By setting the structures such as locating part so that in the short transverse of battery, bolster 2 can be centered setting, and then improve slow
Stamping 2 absorbs the ability of expansive force, and simultaneous buffering part 2 can also concede segment space after deforming for battery.
It is known that battery is when expanding, usually since the intermediate region of battery, and in cell expansion width
When degree reaches maximum, and the swell increment of the intermediate region of battery is maximum, thus on the length direction of battery, bolster 2 can
To be arranged on the intermediate region of end plate main body 1.
Specifically, those skilled in the art can combine end plate main body 1 and ruler of the bolster 2 on mentioned length direction
It is very little, the position set by bolster 2 is determined, so that bolster 2 can be arranged on the middle position of end plate main body 1.Need
Illustrate, intermediate region can be relative concept for 1 both ends of end plate main body, such as intermediate region can be with
The midpoint of end plate main body 1 in the longitudinal direction is starting point, to the setting regions of foregoing two side diffusion certain distance of midpoint.
Further, battery occur expansion after, caused extruding force can by whole battery surface equably to
The surface of end plate main body 1 is transmitted, but due to being only provided with bolster 2 at the intermediate region of end plate main body 1, with reference to the biography of power
Lead, and the structural strength of the entirety of end plate main body 1 considers, it is preferred that on the length direction of battery, end plate main body 1
Thickness becomes larger from the both ends of end plate main body 1 to intermediate region, this can make the power that is evenly transferred in end plate main body 1 can be with
It is concentrated at the intermediate region at the place of bolster 2, bolster 2 is absorbed almost all of extruding force, to ensure battery pack
Babinet will not be squeezed power and deform, or even failure.
Further, loss of weight chamber 11 can be provided with end plate main body 1, loss of weight chamber 11 can be in the short transverse of battery
Through end plate main body 1；Meanwhile multiple reinforcing plates 12 are also provided with loss of weight chamber 11, reinforcing plate 12 can be along the height of battery
Spend direction extension.
Specifically, loss of weight chamber 11 and reinforcing plate 12 can be formed directly into end plate main body 1, it can such as pass through extrusion molding
Mode, directly form the end plate main body 1 with loss of weight chamber 11 and reinforcing plate 12；It is of course also possible to first process end plate main body
1, then by way of boring processing or cutting processing, loss of weight chamber 11 and reinforcing plate 12 are processed in end plate main body 1；By setting
Loss of weight chamber 11 is put, the weight of end plate main body 11 can be mitigated, this is conducive to battery pack and develops to lightweight；Meanwhile reinforcing plate 12
Design, it is ensured that end plate main body 1 has enough structural strengths.
Optionally, bolster 2 can be provided with accommodating chamber 21, and accommodating chamber 21 can be along the short transverse of battery through buffering
Part 2, can be filled with flexible material in accommodating chamber 21.
Specifically, it is identical with the processing method of end plate main body 1, spring steel can also be made by way of extrusion molding
Bolster 2 with accommodating chamber 21, flexible material can be foam or rubber etc..By setting accommodating chamber 21 on bolster 2,
And the filling flexible material in accommodating chamber 21, the elastic deformability of bolster 2 can be further improved, and in flexible material
Support under, what bolster 2 will not be too fast reaches maximum distortion, this can improve the service life of bolster 2.
In order to facilitate the bolster 2 for replacing failure, it is preferred that end plate main body 1 is detachably connected with bolster 2, meanwhile,
In the case that failure occur in some battery or multiple batteries in battery pack, the babinet of battery pack can be dismantled, the electricity more renewed
Pond, and the new battery by being replaced and unexpanded, thus end plate before cannot be on the thickness direction of battery to more
A battery progress is spacing, in this case, can pull down the bolster 2 deformed, be loaded on the buffering not deformed upon
Part 2, without replacing whole end plate, this can save cost, to improve profit margin.
More specifically, sliding slot 13 can be set in end plate main body 1, there is the bolster 2 of accommodating chamber 21 can include inserting
Section 22 is connect, inserting section 22 can be slidably matched with sliding slot 13, optionally, can also make sliding slot 13 and inserting section 22 in the thickness of battery
Direction upper limit is spent to coordinate.Inserting section 22 can be the protrusion extended along the short transverse of battery, can be arranged on sliding slot 13
In end plate main body 1, coordinated by inserting section 22 and sliding slot 13, it is possible to achieve the purpose of connection bolster 2 and end plate main body 1.
Further, bolster 2 can also include planar section 23 and two side plate bendings 24, and planar section 23 can pass through two
Side plate bending 24 is connected with inserting section 22, and on the thickness direction of battery, two side plate bendings 24 can be convex to direction away from each other
Go out.
Specifically, as shown in Figure 1, bolster 2 can include inserting section 22, planar section 23 and side plate bending 24, inserting section 22
It can be used for being detachably connected with end plate main body 1, planar section 23 can be in contact with the babinet of battery pack, and two side plate bendings 24 can
To act to connect inserting section 22 and planar section 23, meanwhile, side plate bending 24 can also play stress deformation, by making two
A side plate bending 24 is protruded to direction away from each other, the elastic deformability that can improve whole bolster 2.
The end plate provided based on any of the above-described embodiment, as shown in Figures 2 and 3, the application also provide a kind of battery pack,
The battery pack can include the end plate that multiple batteries 3, babinet 4 and any of the above-described embodiment are provided, and multiple batteries 3 can edge
Its thickness direction is arranged in the accommodation space that babinet 4 has；End plate, and end plate main body are provided between battery 3 and babinet 4
1 can be in contact with battery 3, and bolster 2 can be in contact with babinet 4.
The foregoing is merely the preferred embodiment of the application, the application is not limited to, for the skill of this area
For art personnel, the application can have various modifications and variations.It is all within spirit herein and principle, made any repair
Change, equivalent substitution, improvement etc., should be included within the protection domain of the application.
Claims (10)
1. a kind of end plate, is arranged between the battery in battery pack and babinet, it is characterised in that including：
End plate main body, the end plate main body, which has along the both sides of its thickness directional spreding, the side of the end plate main body, to be set
The battery, and the end plate main body is contacted with the battery；
Bolster, the bolster is connected to the opposite side of the end plate main body, and the bolster protrudes from the end plate master
Body, the bolster are contacted with the babinet, and the bolster has elasticity.
2. end plate according to claim 1, it is characterised in that the bolster is strip structure, and its extending direction with
The short transverse of the battery is identical.
3. end plate according to claim 2, it is characterised in that on the length direction of the battery, the bolster is set
Put in the intermediate region of the end plate main body.
4. end plate according to claim 3, it is characterised in that on the length direction, the thickness of the end plate main body
Gradually increase to the intermediate region from the both ends of the end plate main body.
5. end plate according to claim 4, it is characterised in that be provided with loss of weight chamber in the end plate main body, and described subtract
Weight chamber runs through the end plate main body in the short transverse of the battery；
Multiple reinforcing plates are provided with the loss of weight chamber, multiple reinforcing plates extend along the short transverse.
6. end plate according to claim 2, it is characterised in that the bolster has accommodating chamber, and the accommodating chamber is in institute
State and run through the bolster in short transverse, and flexible material is filled with the accommodating chamber.
7. end plate according to claim 6, it is characterised in that the end plate main body is detachably connected with the bolster.
8. end plate according to claim 7, it is characterised in that sliding slot, the bolster are provided with the end plate main body
Including inserting section,
The inserting section is slidably connected with the sliding slot, and the sliding slot and the inserting section are on the thickness direction of the battery
Spacing cooperation.
9. end plate according to claim 8, it is characterised in that the bolster further includes planar section and two side plate bendings,
The planar section is connected by two side plate bendings with the inserting section, and on the thickness direction, described in two
Side plate bending is protruded to direction away from each other.
10. a kind of battery pack, it is characterised in that hold including babinet, multiple batteries and as claimed in any one of claims 1-9 wherein
Plate, wherein：
Multiple batteries are arranged in the babinet along its thickness direction, and the end is provided between the babinet and the battery
Plate, and the end plate main body is contacted with the battery, the bolster is contacted with the babinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277232.7U CN207250612U (en) | 2017-09-29 | 2017-09-29 | End plate and battery pack |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721277232.7U CN207250612U (en) | 2017-09-29 | 2017-09-29 | End plate and battery pack |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207250612U true CN207250612U (en) | 2018-04-17 |
Family
ID=61890607
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721277232.7U Active CN207250612U (en) | 2017-09-29 | 2017-09-29 | End plate and battery pack |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207250612U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021044105A (en) * | 2019-09-09 | 2021-03-18 | トヨタ自動車株式会社 | Battery pack |
| WO2022104546A1 (en) * | 2020-11-17 | 2022-05-27 | 宁德时代新能源科技股份有限公司 | Battery, device using battery, preparation method for battery and preparation device thereof |
| WO2022120848A1 (en) * | 2020-12-11 | 2022-06-16 | 宁德时代新能源科技股份有限公司 | Battery, power utilization apparatus, and battery manufacturing method |
| WO2022267059A1 (en) * | 2021-06-25 | 2022-12-29 | 东莞新能安科技有限公司 | Battery pack and electrical device |
| WO2023123039A1 (en) * | 2021-12-29 | 2023-07-06 | 宁德时代新能源科技股份有限公司 | Battery, manufacturing method therefor, manufacturing device thereof, and electrical apparatus |
-
2017
- 2017-09-29 CN CN201721277232.7U patent/CN207250612U/en active Active
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2021044105A (en) * | 2019-09-09 | 2021-03-18 | トヨタ自動車株式会社 | Battery pack |
| JP7240609B2 (en) | 2019-09-09 | 2023-03-16 | トヨタ自動車株式会社 | assembled battery |
| WO2022104546A1 (en) * | 2020-11-17 | 2022-05-27 | 宁德时代新能源科技股份有限公司 | Battery, device using battery, preparation method for battery and preparation device thereof |
| WO2022120848A1 (en) * | 2020-12-11 | 2022-06-16 | 宁德时代新能源科技股份有限公司 | Battery, power utilization apparatus, and battery manufacturing method |
| WO2022267059A1 (en) * | 2021-06-25 | 2022-12-29 | 东莞新能安科技有限公司 | Battery pack and electrical device |
| WO2023123039A1 (en) * | 2021-12-29 | 2023-07-06 | 宁德时代新能源科技股份有限公司 | Battery, manufacturing method therefor, manufacturing device thereof, and electrical apparatus |
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| GR01 | Patent grant |