CN214254663U - Electricity core connection structure - Google Patents
Electricity core connection structure Download PDFInfo
- Publication number
- CN214254663U CN214254663U CN202022920023.8U CN202022920023U CN214254663U CN 214254663 U CN214254663 U CN 214254663U CN 202022920023 U CN202022920023 U CN 202022920023U CN 214254663 U CN214254663 U CN 214254663U
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- Prior art keywords
- spot welding
- battery
- bending
- cell
- connection structure
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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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- Connection Of Batteries Or Terminals (AREA)
- Battery Mounting, Suspending (AREA)
Abstract
The utility model discloses an electricity core connection structure belongs to new energy automobile battery technical field. A battery cell connecting structure comprises two spot welding parts and a bending connecting part, wherein the bending connecting part is positioned between the spot welding parts, and the spot welding parts are used for connecting adjacent battery cells; the utility model discloses spot welding portion and the formation contained angle of buckling between the connecting portion, the effectual connection piece that has avoided electric core circulation back thickness to increase to lead to desolder's problem has improved the stability that electric core connects.
Description
Technical Field
The utility model relates to a new energy automobile battery technical field especially relates to an electricity core connection structure.
Background
The lithium battery pack process is characterized in that a battery core, a protective plate, a battery wire, a battery nickel sheet, battery accessories, a battery box, a battery membrane and the like are assembled into a finished battery in a welding mode. In the field of consumer electronics, both the technology and the market for battery packs have matured, and the trend is increasing. The lithium battery pack process can be realized in two ways, one is laser/ultrasonic/pulse welding, and the other is through elastic sheet metal contact. The two methods are distinguished in that the former is reliable but not easily replaceable, and the latter is easily replaceable without soldering, but may result in poor contact.
At present, the cell connecting pieces of a battery PACK factory are connected by straight connecting pieces, and the thickness of the cell connecting pieces can be increased after the cell is circulated, so that the connecting pieces are desoldered.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the problem that the straight connecting piece that has the electric core circulation back thickness increase to lead to desolders among the prior art, and the electric core connection structure who provides.
In order to achieve the above purpose, the utility model adopts the following technical scheme:
the utility model provides a battery cell connection structure, includes two spot welding portions and the connecting portion of buckling, the connecting portion of buckling is located between the spot welding portion, the spot welding portion is used for connecting adjacent electric core.
Furthermore, the spot welding part is also provided with a welding groove for connecting adjacent battery cells.
Further, the battery pack further comprises a bracket, wherein the bracket is connected to the end of the battery.
Furthermore, a notch matched with the battery cell is formed in the support.
Further, the bending connection part is arc-shaped.
Further, the bending connection part is U-shaped.
Further, the bending connection part is V-shaped.
Furthermore, one or more through holes are formed in the bending connecting part.
Compared with the prior art, the utility model provides an electricity core connection structure possesses following beneficial effect:
1. this electricity core connection structure through spot welding portion and buckle and form the contained angle between the connecting portion, the effectual connection piece that has avoided electric core circulation back thickness increase to lead to desolders the problem, has improved the stability that electric core connects.
2. This electricity core connection structure has reduced the sectional area of the connecting portion of buckling through the through-hole, and when the heavy current that the electric core module short circuit produced passed through the connection piece, the connecting portion of buckling was fused because of the less high temperature that produces of current-carrying area to the connection between the adjacent electric core of disconnection can avoid electric core to be lasted the impact by the heavy current like this.
Drawings
Fig. 1 is one of the schematic structural diagrams of the present invention;
fig. 2 is a second schematic structural diagram of the present invention;
fig. 3 is a third schematic structural diagram of the present invention;
FIG. 4 is a schematic structural view of a connecting sheet according to the present invention;
FIG. 5 is a fourth schematic structural view of the present invention;
FIG. 6 is a fifth schematic view of the present invention;
FIG. 7 is a sixth schematic view of the present invention;
fig. 8 is a second schematic structural diagram of the present invention.
In the figure: 10. connecting sheets; 101. a spot-welded portion; 102. bending the connecting part; 103. welding a groove; 20. a support; 30. and (5) battery cores.
Detailed Description
The technical solution in the embodiment of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiment of the present invention; obviously, the described embodiments are only a part of the embodiments of the present invention, and not all embodiments, and all other embodiments obtained by those skilled in the art without any inventive work are within the scope of the present invention based on the embodiments of the present invention.
It will be understood by those skilled in the art that, unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1:
referring to fig. 1 to 4, a cell connecting structure includes two spot welding portions 101 and a bending connecting portion 102, where the bending connecting portion 102 is located between the spot welding portions 101, the spot welding portion 1 is used to connect adjacent cells 30, a welding groove 103 used to connect adjacent cells 30 is further formed on the spot welding portion 101 of the connecting sheet 10, the welding groove 103 on the spot welding portion 101 is specifically welded on adjacent cells 30 by butt welding or laser welding, and the connecting sheet 10 is a connecting member used to connect adjacent cells 30.
The battery welding device is characterized by further comprising a support 20, wherein the support 20 is connected to the end portion of a battery, a groove matched with the battery core 30 is formed in the support 20, when the battery is connected, the support 20 is clamped at the end portion of the battery, the battery core 30 of the battery penetrates through the groove, and welding is carried out through the spot welding portion 101 of the connecting sheet 10.
The bending connecting portion 102 is arc-shaped, the bending connecting portion 102 is U-shaped, and the bending connecting portion 102 is V-shaped, namely an included angle is formed between the spot welding portion 101 and the bending connecting portion 102, so that the problem of welding failure of the connecting sheet 10 caused by thickness increase after the battery core is circulated is effectively solved, and the stability of connection of the battery core is improved.
Example 2:
referring to fig. 5 to 8, a cell connecting structure is substantially the same as that in embodiment 1, and further, 1 or more through holes 104 are formed in the bending connecting portion 102, so as to reduce a sectional area of the bending connecting portion 102, and when a large current generated by a short circuit of a cell module passes through the connecting sheet 10, the bending connecting portion 102 is fused due to a high temperature generated by a small current-carrying area, so as to disconnect the connection between adjacent cells 30, thereby preventing the cells 20 from being continuously impacted by the large current.
The above, only be the concrete implementation of the preferred embodiment of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, the concept of which is equivalent to replace or change, should be covered within the protection scope of the present invention.
Claims (8)
1. The battery cell connecting structure is characterized by comprising two spot welding parts and a bending connecting part, wherein the bending connecting part is positioned between the spot welding parts, and the spot welding parts are used for connecting adjacent battery cells.
2. The battery cell connecting structure according to claim 1, wherein the spot welding portion is further provided with a welding groove for connecting adjacent battery cells.
3. The cell connecting structure according to claim 1, further comprising a bracket, wherein the bracket is connected to an end of the battery.
4. The battery cell connection structure of claim 3, wherein the bracket is provided with a slot matched with the battery cell.
5. The cell connecting structure according to claim 1, wherein the bent connecting portion is arc-shaped.
6. The cell connecting structure according to claim 1, wherein the bent connecting portion is U-shaped.
7. The cell connecting structure according to claim 1, wherein the bent connecting portion is V-shaped.
8. The electrical core connection structure of any one of claims 1 to 7, wherein the bent connection portion has one or more through holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022920023.8U CN214254663U (en) | 2020-12-09 | 2020-12-09 | Electricity core connection structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022920023.8U CN214254663U (en) | 2020-12-09 | 2020-12-09 | Electricity core connection structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214254663U true CN214254663U (en) | 2021-09-21 |
Family
ID=77737018
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202022920023.8U Active CN214254663U (en) | 2020-12-09 | 2020-12-09 | Electricity core connection structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214254663U (en) |
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2020
- 2020-12-09 CN CN202022920023.8U patent/CN214254663U/en active Active
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