CN216597787U - End plate and battery module - Google Patents
End plate and battery module Download PDFInfo
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- CN216597787U CN216597787U CN202123421938.5U CN202123421938U CN216597787U CN 216597787 U CN216597787 U CN 216597787U CN 202123421938 U CN202123421938 U CN 202123421938U CN 216597787 U CN216597787 U CN 216597787U
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- end plate
- battery
- connecting part
- fixing
- avoidance area
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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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Abstract
The utility model discloses an end plate, which comprises a connecting part and fixing columns positioned on both sides of the width direction of the connecting part; an avoidance area is formed between the connecting part and the fixing column; or an avoidance area is formed on the connecting part. The end plate of the utility model reserves an avoidance area for avoiding the expansion of the battery through the connecting part and the fixed column, and the structural stability of the battery module can be kept without improving the rigidity or adopting a complex structure for absorbing the expansion force, thereby effectively solving the technical problems existing in two means in the prior art; the structure is simple and the cost is low.
Description
Technical Field
The utility model relates to a battery technology field especially relates to an end plate and battery module.
Background
Lithium ion battery often has the expansion phenomenon in the use, and the appearance of expansibility can make module structure frame suffer destruction, consequently, deals with the expansibility and becomes a focus of research in the trade. In the prior art, there are two methods for dealing with the expansion force of the lithium ion battery, which are respectively: the first is anti-expansion force, the end plate structure with higher rigidity is arranged to resist the deformation of the module, and the adoption of the scheme can cause the weight of the end plate structure to be heavier, which is not beneficial to the lightweight design requirement; the second is to absorb the expansive force, and through adopting the composite end plate elastic deformation to absorb the expansive force, by adopting the scheme, the structure of the end plate is more complex and the cost is high.
Therefore, in view of the above technical problems, it is highly desirable to develop a novel end plate structure and a battery module having the same.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing an end plate and battery module that mode through setting up the dodge district dealt with battery expansion deformation, satisfied lightweight designing requirement, reduce cost, simple structure.
In order to achieve the above object, the present invention provides the following technical solutions:
the utility model discloses an end plate, this end plate includes:
a connecting portion; and
the fixing columns are positioned on two sides of the width direction of the connecting part;
an avoidance area is formed between the connecting part and the fixing column; or an avoidance area is formed on the connecting part.
Furthermore, the connecting part is positioned on one side of the fixing column, which is far away from the battery;
the connecting part and the fixing column are made of dissimilar metal materials;
the connecting part is fixedly connected with the fixing column through a screw;
the space between the side face of the connecting part facing one side of the battery and the inner side faces of the two fixing columns is configured as the avoiding area.
Furthermore, bending parts are formed on two sides of the connecting part in the width direction towards the outer side face of the fixing column in a bending mode.
Furthermore, the connecting part is positioned on one side of the fixing column, which is far away from the battery;
the connecting part and the fixing column are integrally formed;
the space between the side face of the connecting part facing one side of the battery and the inner side faces of the two fixing columns is configured as the avoiding area.
Furthermore, the two fixing columns are positioned at two ends of the connecting part in the width direction;
the connecting part and the fixing column are integrally formed;
the space between the side face of the connecting part facing one side of the battery and the inner side faces of the two fixing columns is configured as the avoiding area.
Further, the end plate also comprises a switching part;
the switching part is a sheet metal bending part;
the adapter part is of an L-shaped structure, one side of the adapter part is connected with the outer side face of the fixed column, and the other side of the adapter part extends to the side face, far away from the battery, of the fixed column.
Furthermore, the number of the connecting parts is two, and the two connecting parts are respectively positioned on two end faces in the thickness direction of the end plate;
the avoidance area is formed in the middle of the connecting part close to one side of the battery;
the two connecting parts and the two fixing columns are integrally formed.
Furthermore, a lightening hole is formed in the middle of the connecting part on the side far away from the battery;
the length of the lightening hole is not more than the distance between the two fixing columns;
the width of the lightening hole is smaller than the height of the connecting part.
The utility model discloses a battery module, this battery module includes:
a battery pack composed of a plurality of batteries arranged;
side plates positioned at both sides of the battery pack; and
end plates as described above located at both ends of the battery pack.
Further, the side, close to the battery, of the end plate is provided with an insulating layer;
an avoidance area is arranged on the insulating layer.
In the technical scheme, the utility model provides a pair of end plate and battery module has following beneficial effect:
the end plate of the utility model reserves an avoidance area for avoiding the expansion of the battery through the connecting part and the fixed column, and the structural stability of the battery module can be kept without improving the rigidity or adopting a complex structure for absorbing the expansion force, thereby effectively solving the technical problems existing in two means in the prior art; the structure is simple and the cost is low.
The utility model discloses an expansion region of battery is owing to dodged to the end plate, and consequently, the end plate need not bear the bulging force of battery, and connecting portion need not have very high rigidity, and connecting portion can be the slice, and its thickness can be for being greater than 0.2mm, and be less than 3mm, has further alleviateed weight.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present invention, and other drawings can be obtained by those skilled in the art according to these drawings.
Fig. 1 is a schematic structural diagram of a first embodiment of an end plate according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of an end plate according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of an end plate according to an embodiment of the present invention;
fig. 4 is a schematic structural diagram of a fourth embodiment of an end plate according to an embodiment of the present invention;
fig. 5 is a schematic structural diagram of a battery module according to an embodiment of the present invention;
fig. 6 is a schematic structural view of an end plate and an insulating layer of a battery module according to an embodiment of the present invention.
Description of reference numerals:
1. an end plate; 2. a side plate; 3. a battery pack; 4. an insulating layer;
101. a connecting portion; 102. fixing a column; 103. an avoidance zone; 104. a switching part; 105. and (7) lightening holes.
Detailed Description
In order to make the technical solution of the present invention better understood by those skilled in the art, the present invention will be further described in detail with reference to the accompanying drawings.
An end plate of the present embodiment, the end plate 1 includes:
a connecting portion 101; and
fixing columns 102 located on both sides of the connecting portion 101 in the width direction;
an avoidance area 103 is formed between the connecting part 101 and the fixing column 102; or the connection part 101 is formed with a relief area 103.
The embodiment discloses a novel end plate structure, and this end plate combines the regional characteristics of battery inflation, has formed through foretell connecting portion 101 and fixed column 102 and has dodged the regional district 103 of dodging of battery inflation, lets end plate 1 and the protruding contactless not of battery inflation back to bulging force when having avoided the battery inflation. Because the expansion of the battery is generally a bulge at the middle position of the battery, the avoidance region 103 is mainly used for avoiding the bulge position, so that the structural stability of other positions of the battery can be kept.
First embodiment, referring to fig. 1, the first embodiment discloses a structure of a first end plate 1, specifically:
the connecting part 101 is positioned at one side of the fixing column 102 far away from the battery;
the connecting part 101 and the fixing column 102 are made of dissimilar metal materials;
the connecting part 101 is fixedly connected with the fixing column 102 through a screw;
the space between the side surface of the connection portion 101 facing the battery and the inner side surfaces of the two fixing posts 102 is configured as a relief area 103.
In the first embodiment, the two sides of the connecting portion 101 in the width direction are bent toward the outer side surface of the fixing column 102 to form bent portions.
The connection portion 101 of the first embodiment is located on the side surface of the fixing post 102 away from the battery, the material of the connection portion 101 is preferably a steel plate, the material of the fixing post 102 is preferably an aluminum profile, and the two are connected by a screw. The space between the side face, facing the battery, of the connecting portion 101 and the inner side face of the fixing column 102 is an avoiding region 103, the sizes of the connecting portion 101 and the fixing column 102 are designed according to the size of the bulge for calculating the expansion of the battery, and the expansion bulge for avoiding the battery can be avoided through the avoiding region 103.
In the second embodiment, referring to fig. 2, the second embodiment discloses a structure of a second end plate 1, which specifically includes:
the connecting part 101 is positioned at one side of the fixing column 102 far away from the battery;
the connecting part 101 and the fixing column 102 are integrally formed;
the space between the side surface of the connection portion 101 facing the battery and the inner side surfaces of the two fixing posts 102 is configured as a relief area 103.
The connecting portion 101 of the second embodiment is also located on the side of the fixing post 102 away from the battery, but different from the first embodiment, the connecting portion 101 of the second embodiment is made of the same material as the fixing post 102, and is integrally formed through an aluminum profile extrusion process. Similarly, the space between the side surface of the connecting portion 101 facing the battery and the inner side surface of the fixing column 102 is an avoiding area 103.
Third embodiment, referring to fig. 3, the third embodiment discloses a structure of a third end plate 1, specifically:
the two fixing columns 102 are positioned at two ends of the connecting part 101 in the width direction;
the connecting part 101 and the fixing column 102 are integrally formed;
the space between the side surface of the connection portion 101 facing the battery and the inner side surfaces of the two fixing posts 102 is configured as a relief area 103.
The end plate 1 further comprises an adapter portion 104;
the switching part 104 is a sheet metal bending part;
the adapter 104 is in an L-shaped structure, one side of the adapter 104 is connected to the outer side of the fixing post 102, and the other side of the adapter 104 extends to the side of the fixing post 102 away from the battery.
The connecting portion 101 of the end plate 1 in the third embodiment is located between the two fixing posts 102, and the connecting portion 101 and the fixing posts 102 are integrally formed by an aluminum profile extrusion process. Similarly, the space between the side surface of the connecting portion 101 facing the battery and the inner side surface of the fixing column 102 is an avoiding area 103. In addition, the end plate 1 further includes two adapter portions 104, and the adapter portions 104 and the fixing posts 102 are made of dissimilar metal materials and are connected to the fixing posts 102.
In the fourth embodiment, referring to fig. 4, the fourth embodiment discloses a structure of a fourth end plate 1, specifically:
the number of the connecting parts 101 is two, and the two connecting parts 101 are respectively positioned on two end faces in the thickness direction of the end plate 1;
an avoidance area 103 is formed in the middle of the connecting part 101 close to one side of the battery;
the two connecting portions 101 are integrally formed with the two fixing posts 102.
The end plate 1 of the fourth embodiment has two connecting portions 101, which are respectively located at two ends of the end plate 1 in the thickness direction, and the middle portion of the connecting portion 101 close to one side of the battery is provided with an avoiding region 103 for avoiding the expansion of the battery.
A lightening hole 105 is formed in the middle of the connecting part 101 of the end plate 1 far away from the battery;
the length of the lightening hole 105 is not more than the distance between the two fixing columns 102;
the width of the lightening hole 105 is smaller than the height of the connecting portion 101.
All the connecting portions 101 may not be provided with the lightening holes 105.
Example five, see fig. 5-6.
The utility model discloses a battery module, this battery module includes:
a battery pack 3 composed of a plurality of batteries arranged;
the end plates 1 as described above are located at both ends of the stack 3.
Wherein, the end plate 1 is provided with an insulating layer 4 at one side close to the battery;
the insulating layer 4 is provided with a relief area 103.
The space between the side plate 2 and the end plate 1 is a containing cavity for containing the battery pack 3, the structure of the end plates 1 is combined, the end plate 1 and the side plate 2 are welded or screwed properly, and an insulating layer 4 is adhered to one side, close to the battery, of the end plate 1. The insulating layer 4 of the fifth embodiment may be a double-sided back-glued PET, one side of which is bonded to the end plate 1 and the other side of which is bonded to the battery close to the end plate, and the insulating layer 4 is also provided with an avoiding region 103 in order to avoid the expansion protrusion of the battery.
In the technical scheme, the utility model provides a pair of end plate and battery module has following beneficial effect:
the end plate 1 of the utility model reserves an avoidance area 103 for avoiding the expansion of the battery through the connecting part 101 and the fixing column 102, does not need to improve the rigidity or adopt a complex structure for absorbing the expansion force, can keep the structural stability of the battery module, and effectively solves the technical problems existing in two means in the prior art; the structure is simple and the cost is low.
The utility model discloses an expansion region of battery is owing to dodged to end plate 1, consequently, end plate 1 need not bear the bulging force of battery, and connecting portion 101 need not have very high rigidity, and connecting portion 101 can be the slice, and its thickness can be for being greater than 0.2mm, and be less than 3mm, has further alleviateed weight.
Certain exemplary embodiments of the present invention have been described above by way of illustration only, and it will be apparent to those of ordinary skill in the art that the described embodiments may be modified in various different ways without departing from the spirit and scope of the present invention. Accordingly, the drawings and description are illustrative in nature and should not be construed as limiting the scope of the invention.
Claims (10)
1. End plate, characterized in that, this end plate (1) includes:
a connecting part (101); and
fixing columns (102) positioned on two sides of the connecting part (101) in the width direction;
an avoidance area (103) is formed between the connecting part (101) and the fixed column (102); or an avoidance area (103) is formed on the connecting part (101).
2. The end plate according to claim 1, wherein the connecting portion (101) is located on a side of the fixing post (102) remote from the battery;
the connecting part (101) and the fixing column (102) are made of dissimilar metal materials;
the connecting part (101) is fixedly connected with the fixing column (102) through a screw;
the space between the side surface of the connecting part (101) facing the battery and the inner side surfaces of the two fixing columns (102) is configured as the avoidance area (103).
3. The end plate according to claim 2, wherein bent portions are formed by bending both sides of the connecting portion (101) in the width direction toward the outer side surfaces of the fixing posts (102).
4. The end plate according to claim 1, wherein the connecting portion (101) is located on a side of the fixing post (102) remote from the battery;
the connecting part (101) and the fixing column (102) are integrally formed;
the space between the side surface of the connecting part (101) facing the battery and the inner side surfaces of the two fixing columns (102) is configured as the avoidance area (103).
5. The end plate according to claim 1, wherein two of the fixing posts (102) are located at both ends in the width direction of the connecting portion (101);
the connecting part (101) and the fixing column (102) are integrally formed;
the space between the side surface of the connecting part (101) facing the battery and the inner side surfaces of the two fixing columns (102) is configured as the avoidance area (103).
6. The end plate according to claim 5, characterized in that the end plate (1) further comprises an adapter part (104);
the switching part (104) is a sheet metal bending part;
the adapter part (104) is of an L-shaped structure, one side of the adapter part (104) is connected with the outer side face of the fixing column (102), and the other side of the adapter part (104) extends to the side face, far away from the battery, of the fixing column (102).
7. The end plate according to claim 1, wherein the number of the connecting parts is two, and the two connecting parts (101) are respectively positioned on two end faces in the thickness direction of the end plate (1);
the avoidance area (103) is formed in the middle of the connecting part (101) close to one side of the battery;
the two connecting parts (101) and the two fixing columns (102) are integrally formed.
8. The end plate according to any one of claims 1 to 7, wherein a weight-reduction hole (105) is formed in a middle position of the connecting portion (101) on a side away from the battery;
the length of the lightening hole (105) is not more than the distance between the two fixing columns (102);
the width of the lightening hole (105) is smaller than the height of the connecting part (101).
9. Battery module, its characterized in that, this battery module includes:
a battery pack (3) composed of a plurality of cells arranged;
side plates (2) located at both sides of the battery pack; and
end plate (1) according to any of claims 1 to 7 at both ends of the battery (3).
10. The battery module according to claim 9, wherein the end plate (1) has an insulating layer (4) on the side close to the cells;
an avoidance area (103) is arranged on the insulating layer (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123421938.5U CN216597787U (en) | 2021-12-31 | 2021-12-31 | End plate and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202123421938.5U CN216597787U (en) | 2021-12-31 | 2021-12-31 | End plate and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216597787U true CN216597787U (en) | 2022-05-24 |
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ID=81631375
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202123421938.5U Active CN216597787U (en) | 2021-12-31 | 2021-12-31 | End plate and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216597787U (en) |
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2021
- 2021-12-31 CN CN202123421938.5U patent/CN216597787U/en active Active
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