CN217768690U - Battery and battery module - Google Patents
Battery and battery module Download PDFInfo
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- CN217768690U CN217768690U CN202221952144.3U CN202221952144U CN217768690U CN 217768690 U CN217768690 U CN 217768690U CN 202221952144 U CN202221952144 U CN 202221952144U CN 217768690 U CN217768690 U CN 217768690U
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- battery
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- battery case
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- point ear
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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 embodiment of the utility model discloses battery and battery module for the welding position of the utmost point ear in solving current battery and connection piece is great apart from battery case's antetheca, is unfavorable for utmost point ear department to the outside radiating technical problem of battery case. The embodiment of the utility model provides an including battery case, electric core and top cap, electric core set up in battery case's inside cavity, the relative both sides of electric core all are provided with utmost point ear, utmost point ear is connected with the connection piece and utmost point ear passes through the connection piece with the top cap electricity is connected, battery case has two lateral walls along the relative setting of first direction, the lateral wall is followed the orientation and is kept away from the direction of electric core is provided with the bellying, the inside of bellying with battery case's inside cavity intercommunication, the connection piece set up in the inside of bellying.
Description
Technical Field
The utility model relates to a battery design technical field especially relates to a battery and battery module.
Background
At present, two processes for leading out the battery core lugs of a square battery are available, wherein one process is to design the positive and negative lugs on the top of the battery core, and the other process is to design the positive and negative lugs on the two opposite sides (left and right sides) of the battery core.
When the positive and negative electrode lugs are positioned at the left and right sides of the battery cell, the welding planes of the positive and negative electrode connecting sheets and the positive and negative electrode lugs are also respectively positioned at the left and right sides of the battery cell. The electrode lugs of the battery cell are formed by overlapping foil materials, and the thickness of the battery cell at the electrode lug position is smaller than that of the battery cell at the non-electrode lug position. The welding of utmost point ear and connection piece is accomplished, and utmost point ear adds the thickness of connection piece and will be less than the electric core thickness of non utmost point ear position, if battery case uses the regular cuboid of shape, then the distance of the utmost point ear of electric core and connection piece welding position and battery case's antetheca will be greater than the distance of the non utmost point ear position of electric core and battery case's antetheca. In addition, when the battery is used, the change of the cell thickness mainly comes from the change of the cell thickness at the position without the lug, and the cell thickness at the position with the lug is not changed. In the above design, the distance between the welding position of the tab and the connecting sheet of the battery cell and the front wall of the battery case is greater than the distance between the non-tab position of the battery cell and the front wall of the battery case, which is not favorable for heat dissipation from the tab to the outside of the battery case.
Therefore, it is an important subject of research by those skilled in the art to find a battery and a battery module capable of solving the above-mentioned technical problems.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model discloses battery and battery module for the welded position of the utmost point ear in solving current battery and connection piece is great apart from battery case's antetheca, is unfavorable for utmost point ear department to the outside radiating technical problem of battery case.
An embodiment of the utility model provides a battery, including battery case, electric core and top cap, the electric core set up in battery case's inside cavity, the relative both sides of electric core all are provided with utmost point ear, utmost point ear is connected with the connection piece and utmost point ear passes through the connection piece with the top cap electricity is connected, battery case has two lateral walls along the relative setting of first direction, the lateral wall is kept away from along the orientation the direction of electric core is provided with the bellying, the inside of bellying with battery case's inside cavity intercommunication, the connection piece set up in the inside of bellying.
Optionally, the battery housing has a front wall and a rear wall oppositely disposed in the second direction and a bottom wall disposed in the third direction;
the front wall, the side walls and the rear wall are sequentially arranged around the bottom wall to form an internal cavity of the battery shell.
Optionally, the connecting piece comprises a first connecting portion;
the shape of the first connecting part is matched with the inner part of the bulge part;
the first connecting portion is arranged inside the protruding portion, and the tab is connected with the first connecting portion.
Optionally, the first connecting portion has a first plane parallel to the side wall and a second plane parallel to the front wall, wherein the tab is connected to the first plane or the second plane;
when the tab is connected to the first plane, the surface area of the first plane is larger than that of the second plane;
when the tab is attached to the second plane, the surface area of the second plane is greater than the surface area of the first plane.
Optionally, the boss has a third plane parallel to the side wall and a fourth plane parallel to the front wall.
Optionally, a length of the third plane of the boss is less than a length of the sidewall along the second direction.
Optionally, the height of the protruding portion is equal to or lower than the height of the battery case.
An embodiment of the utility model provides a battery module, battery module includes a plurality of foretell batteries.
Optionally, the third planes of the convex parts of two adjacent batteries are fitted to each other.
Optionally, the fourth planes of the convex parts of two adjacent batteries are mutually attached and assembled.
Optionally, the non-convex surfaces of the side walls of two adjacent cells are fitted to each other.
According to the technical solution provided by the utility model, the embodiment of the utility model has the following advantage:
in this embodiment, through the lateral wall design bellying at battery case to the connection piece setting that will be connected with the utmost point ear of electric core is in the inside of bellying, effectively reduces the distance of utmost point ear hookup location and battery case's antetheca, is favorable to utmost point ear department to battery case's outside heat dissipation, has further improved the security that the battery used.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.
Fig. 1 is an exploded view of a battery according to an embodiment of the present invention;
fig. 2 is a schematic structural diagram of a battery case in a battery provided in an embodiment of the present invention;
fig. 3 is a schematic structural diagram of a connecting sheet in a battery provided in an embodiment of the present invention;
fig. 4 is a schematic view illustrating a first assembling manner of two adjacent batteries in a battery module according to an embodiment of the present invention;
fig. 5 is a schematic view illustrating a second assembling manner of two adjacent batteries in the battery module according to an embodiment of the present invention;
fig. 6 is a schematic view illustrating a third assembling manner of two adjacent batteries in the battery module according to an embodiment of the present invention;
illustration of the drawings: a battery case 1; a front wall 101; a rear wall 102; a sidewall 103; a non-convex side 1031 of the sidewall; a bottom wall 104; a battery core 2; a top cover 3; a pole 4; a connecting sheet 5; a first connection portion 501; the first plane 5011; second plane 5012; a second connection portion 502; a boss portion 6; a third plane 601; a fourth plane 602;
Detailed Description
The embodiment of the utility model discloses battery and battery module for the welding position of the utmost point ear in solving current battery and connection piece is great apart from battery case's antetheca, is unfavorable for utmost point ear department to the outside radiating technical problem of battery case.
In order to make the technical field better understand the solution of the present invention, the following detailed description of the present invention is provided with reference to the accompanying drawings and the detailed description. It is to be understood that the embodiments described are only some embodiments of the invention, and not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Example one
Referring to fig. 1 to fig. 3, a battery provided in an embodiment of the present invention includes:
battery case 1, top cap 3 and electric core 2, electric core 2 set up in battery case 1's inside cavity, the relative both sides of electric core 2 all are provided with utmost point ear, utmost point ear is connected with connection piece 5 and utmost point ear passes through connection piece 5 with the top cap electricity is connected, battery case 1 has two lateral walls 103 along the relative setting of first direction, lateral wall 103 is kept away from along the orientation the direction of electric core is provided with bellying 6, the inside of bellying 6 with battery case 1's inside cavity intercommunication, connection piece 5 set up in bellying 6's inside.
It should be noted that, in this embodiment, tabs are disposed on two opposite sides of the battery cell 2, which can be simply understood as that tabs are disposed on both left and right sides of the battery cell 2.
In this embodiment, the protruding portion 6 is designed on the side wall 103 of the battery case 1, and the connecting sheet 5 connected with the tab of the electric core 2 is disposed inside the protruding portion 6, so that the distance between the tab connecting position and the front wall 101 of the battery case 1 is effectively reduced, heat dissipation from the tab to the outside of the battery case 1 is facilitated, and the safety of the battery is further improved. In addition, when the battery shell 1 is impacted by external force, the design of the convex part 6 can provide stress buffering, and the possibility of cracking of the battery shell 1 is reduced.
Further, the battery case 1 in the present embodiment is specifically a battery case in a square or rectangular parallelepiped shape, the battery case 1 having a front wall 101 and a wall 102 disposed oppositely in the second direction and a bottom wall 104 disposed in the third direction;
the front wall 101, the side walls 103, and the rear wall 102 are sequentially disposed around the bottom wall 104 to form an internal cavity of the battery case 1.
It should be simply understood that the side walls 103 of the battery case 1 are substantially the left side wall 103 and the right side wall 103 of the battery case 1.
Further, the connecting piece 5 in the present embodiment includes a first connecting portion 501;
the shape of the first connecting portion 501 matches the inside of the boss 6;
the first connecting portion 501 is disposed inside the protruding portion 6, and the tab is connected to the first connecting portion 501.
It should be noted that, in the present embodiment, the shape of the first connection portion 501 needs to match the inside of the protruding portion 6, that is, the size of the first connection portion 501 matches the size of the protruding portion 6, and by the above design, the first connection portion 501 can be more compactly disposed inside the protruding portion 6.
Further, the top cover 3 in this embodiment covers the top opening of the battery case 1, and the top cover 3 is provided with a terminal post 4;
the connecting piece 5 in this embodiment further includes a second connecting portion 502 connected to the first connecting portion 501, the second connecting portion 502 and the first connecting portion 501 form a structure similar to an inverted L shape, and the second connecting portion 502 is electrically connected to the pole 4.
Further, the first connection portion 501 has a first plane 5011 parallel to the side wall 103 and a second plane 5012 parallel to the front wall 101, wherein the tab is connected to the first plane 5011 or the second plane 5012;
when the tab is attached to the first plane 5011, the surface area of the first plane 5011 is greater than the surface area of the second plane 5012;
when the tab is attached to the second plane 5012, the surface area of the second plane 5012 is greater than the surface area of the first plane 5011.
It should be noted that, in this embodiment, specific dimensions of the first connection portion 501 are not limited, and a designer may select a first connection portion 501 with an appropriate dimension according to actual situations, where the first connection portion 501 in this embodiment is substantially a rectangular parallelepiped plate-shaped structure.
Further, the boss 6 in the present embodiment has a third plane 601 mutually parallel to the side wall 103 and a fourth plane 602 mutually parallel to the front wall 101.
The protruding portion 6 in the present embodiment is formed integrally with the battery case 1.
Further, in the second direction, the length of the third plane 601 of the boss 6 is smaller than the length of the side wall 103.
Further, in the present embodiment, the height of the protruding portion 6 is equal to the height of the battery case 1 or the height of the protruding portion 6 is lower than the height of the battery case 1.
It should be noted that the height of the protruding portion 6 in the present embodiment needs to be designed according to the substantial height of the first connecting portion 501, and the maximum height thereof is equal to the height of the battery case 1.
Example two
Referring to fig. 1 to 6, a battery module according to an embodiment of the present invention includes a plurality of batteries according to a first embodiment;
further, the battery module in this embodiment has various battery assembling methods, such as a method one: the third planes 601 of the protruding parts 6 of two adjacent batteries are fitted to each other.
In the first embodiment, as shown in fig. 4, the third plane 601 of the boss 6 of one cell and the third plane 601 of the boss of the other cell are fitted to each other.
In the second mode, the fourth planes 602 of the protruding portions 6 of two adjacent batteries are fitted to each other.
In the second embodiment, as shown in fig. 5, the fourth flat surface 602 of the protruding portion 6 of one battery and the fourth flat surface 602 of the protruding portion 6 of the other battery are fitted to each other, and the protruding portions 6 of the two batteries are staggered by the above design, which is beneficial to improving the space utilization rate of the battery module and improving the energy density.
In the second mode, the non-convex surfaces 1031 of the side walls 103 of two adjacent batteries are fitted to each other.
It should be noted that, as shown in fig. 6, in the third embodiment, the non-convex surface 1031 of the side wall 103 of one battery and the non-convex surface 1031 of the other battery are fitted to each other, and through the above design, the convex portions 6 of the two batteries can be staggered, which is beneficial to improving the space utilization rate of the battery module and improving the energy density.
It is right above the utility model provides a battery and battery module have carried out detailed introduction, to the general technical personnel in this field, the foundation the utility model discloses the thought of embodiment all has the change part on concrete implementation and application scope, to sum up, this specification content should not be understood as right the utility model discloses a restriction.
Claims (11)
1. The utility model provides a battery, includes battery case, electric core and top cap, electric core set up in battery case's inside cavity, the relative both sides of electric core all are provided with utmost point ear, utmost point ear is connected with the connection piece and utmost point ear passes through the connection piece with the top cap electricity is connected, a serial communication port, battery case has two lateral walls along the relative setting of first direction, the lateral wall is kept away from along the orientation the direction of electric core is provided with the bellying, the inside of bellying with battery case's inside cavity intercommunication, the connection piece set up in the inside of bellying.
2. The battery of claim 1, wherein the battery housing has front and rear walls oppositely disposed in a second direction and a bottom wall disposed in a third direction;
the front wall, the side walls and the rear wall are sequentially arranged around the bottom wall to form an internal cavity of the battery shell.
3. The cell defined in claim 2, wherein the tab includes a first connection portion;
the shape of the first connecting part is matched with the inner part of the bulge part;
the first connecting portion is arranged inside the protruding portion, and the tab is connected with the first connecting portion.
4. The battery of claim 3, wherein the first connection portion has a first plane parallel to the side wall and a second plane parallel to the front wall, wherein the tab is connected to the first plane or the second plane;
when the tab is connected to the first plane, the surface area of the first plane is larger than that of the second plane;
when the tab is attached to the second plane, the surface area of the second plane is greater than the surface area of the first plane.
5. The cell defined in claim 2, wherein the boss has a third plane that is parallel to the side walls and a fourth plane that is parallel to the front wall.
6. The battery of claim 5, wherein a length of the third plane of the protrusion is less than a length of the sidewall along the second direction.
7. The battery of claim 1, wherein the height of the raised portion is equal to or lower than the height of the battery housing.
8. A battery module characterized by comprising a plurality of the batteries according to any one of claims 1 to 7.
9. The battery module according to claim 8, wherein the third planes of the protrusions of two adjacent batteries are fit against each other.
10. The battery module according to claim 8, wherein the fourth planes of the protrusions of adjacent two of the batteries are fitted to each other.
11. The battery module according to claim 8, wherein the non-convex surfaces of the side walls of two adjacent cells are fitted to each other.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221952144.3U CN217768690U (en) | 2022-07-27 | 2022-07-27 | Battery and battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221952144.3U CN217768690U (en) | 2022-07-27 | 2022-07-27 | Battery and battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217768690U true CN217768690U (en) | 2022-11-08 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221952144.3U Active CN217768690U (en) | 2022-07-27 | 2022-07-27 | Battery and battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217768690U (en) |
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2022
- 2022-07-27 CN CN202221952144.3U patent/CN217768690U/en active Active
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