CN218602679U - Electric connection sheet and battery - Google Patents
Electric connection sheet and battery Download PDFInfo
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- CN218602679U CN218602679U CN202222909345.1U CN202222909345U CN218602679U CN 218602679 U CN218602679 U CN 218602679U CN 202222909345 U CN202222909345 U CN 202222909345U CN 218602679 U CN218602679 U CN 218602679U
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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 electricity connection piece and battery, electricity connection piece are used for switching on utmost point ear of utmost point post on the top cap piece and electric core, and electricity connection piece includes connection piece body, and connection piece body has utmost point ear weld zone and utmost point post weld zone, and utmost point ear weld zone links to each other with utmost point ear, and utmost point post weld zone links to each other with utmost point post, and is equipped with the passivation layer on the connection plate body. This electricity connection piece can avoid the bad phenomenon of welding to take place betterly, ensures the welding fastness of electricity connection piece and utmost point post to it can be stable to switch on with utmost point post to have ensured electric core.
Description
Technical Field
The utility model relates to a battery technology field especially relates to an electric connection piece and battery.
Background
Along with the development of clean energy electric automobile, the power lithium cell has developed rapidly, and its battery structure is also optimizing constantly, and the electric connection piece plays the effect of bridge tie between apron and electric core. In actual production, because the electric connection sheet and the pole of the cover plate adopt a laser welding process, mirror reflection often occurs in the welding process, and the phenomenon of poor laser welding is caused.
SUMMERY OF THE UTILITY MODEL
A first object of the utility model is to provide an electricity connection piece, this electricity connection piece can avoid the bad phenomenon of welding to take place betterly, ensures the welding fastness of electricity connection piece and utmost point post to it can stably switch on with utmost point post to have ensured electric core.
A second object of the utility model is to provide a battery, the electric connection piece of this battery is better with the welding reliability of utmost point post, has ensured that electric core can switch on with utmost point post steadily, ensures the use reliability of battery.
For realizing the above technical effect, the technical scheme of the utility model as follows:
the utility model discloses an electric connection piece, electric connection piece is used for switching on utmost point ear of utmost point post and electric core on the top cap piece, electric connection piece includes the connection piece body, utmost point post weld zone and utmost point ear weld zone that connection piece body has, utmost point post weld zone with utmost point ear links to each other, utmost point ear weld zone with utmost point ear links to each other, be equipped with the passivation layer on the connection piece body.
In some embodiments, the post welding area is further provided with an embossing structure.
In some specific embodiments, the embossing structure comprises a plurality of stamping grooves arranged in a plurality of rows and a plurality of columns.
In some more specific embodiments, the stamped groove is rectangular in cross-section.
In some alternative embodiments, the length of the punching groove is 0.2mm to 0.4mm, and the width of the punching groove is 0.2mm to 0.4mm.
In some alternative embodiments, the depth of the stamped groove is 0.05mm to 0.1mm.
In some optional embodiments, the distance between two adjacent rows of the stamping grooves is 0.1mm-0.3mm, and the distance between two adjacent columns of the stamping grooves is 0.1mm-0.3mm.
In some specific embodiments, the tab welding region is provided with an avoidance groove.
In some embodiments, the corners of the tab body have rounded corners.
The utility model also discloses a battery, including the preamble electric connection piece, top cap piece, casing and electric core, the one end of casing opens the setting, the top cap piece is installed the end of opening of casing, the utmost point ear weld zone of electric connection piece with the utmost point ear welding of electric core links to each other, the utmost point post weld zone of electric connection piece with utmost point post laser welding on the top cap piece links to each other.
The utility model discloses an electricity connection piece's beneficial effect: this body of connection piece that is formed with the passivation layer can lose metallic luster, and the surface is relatively coarse for laser mirror surface emission can not appear in utmost point post weld area, has guaranteed utmost point post weld area and can weld with utmost point post steadily, has reduced the probability that the welding is bad to take place, ensures the welding fastness of electric connection piece and utmost point post, thereby has guaranteed that electric core can stably switch on with utmost point post.
The utility model discloses a beneficial effect of battery: due to the electric connection sheet, the welding reliability of the electric connection sheet and the pole of the battery is good, the electric core can be stably conducted with the pole, and the use reliability of the battery is ensured.
Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.
Drawings
Fig. 1 is a schematic structural view of an electrical connection sheet according to an embodiment of the present invention.
Reference numerals are as follows:
1. a connecting sheet body; 11. a pole welding area; 12. a tab welding area; 13. an embossed structure; 14. an avoidance groove; 15. and (4) rounding.
Detailed Description
In order to make the technical problem solved by the present invention, the technical solution adopted by the present invention and the technical effect achieved by the present invention clearer, the technical solution of the present invention will be further explained by combining the drawings and by means of the specific implementation manner.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention.
Furthermore, features defined as "first" and "second" may explicitly or implicitly include one or more of the features for distinguishing between descriptive features, non-sequential, non-trivial and non-trivial. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
A specific structure of an electrical connection sheet according to an embodiment of the present invention is described below with reference to fig. 1.
The utility model discloses an electric connecting sheet, electric connecting sheet are used for switching on utmost point ear of utmost point post and electric core on the top cap piece, and electric connecting sheet includes connection piece body 1, and connection piece body 1 has utmost point ear weld zone 12 and utmost point post weld zone 11, and utmost point ear weld zone 12 links to each other with utmost point ear, and utmost point post weld zone 11 links to each other with utmost point post, is equipped with the passivation layer on connection piece body 1. It can be understood that the connecting sheet body 1 is provided with a passivation layer, the passivation layer is obtained by passivating the connecting sheet body 1, and the passivated connecting sheet body 1 loses metallic luster and has a relatively rough surface. The utmost point post weld zone 11 that is formed with the passivation layer promptly can lose metallic luster, and the surface is relatively coarse for laser can not appear mirror surface emission at utmost point post weld zone 11, has ensured utmost point post weld zone 11 and can weld with utmost point post steadily, has reduced the probability that the welding is bad takes place, ensures the welding fastness of electric connection piece and utmost point post, thereby has ensured that electric core can stably switch on with utmost point post.
In some embodiments, as shown in fig. 1, the post land 11 is also provided with an embossed structure 13 thereon. It can be understood that the embossed structure 13 on the post welding area 11 can further reduce the reflection effect of the post welding area 11 on the laser, thereby further reducing the probability of poor welding. It should be noted here that in the actual manufacturing process, the embossed structure 13 may be directly produced at the time of manufacturing the electrical connection sheet, and then the electrode post bonding region 11 is passivated. It is also possible to passivate the pole welding areas 11 before the embossed structures 13 are punched out.
In some specific embodiments, as shown in fig. 1, the embossed structure 13 includes a plurality of punched grooves arranged in a plurality of rows and columns. This can further reduce the effect of reflecting the laser light from the post weld zone 11, thereby further reducing the probability of occurrence of a welding failure.
In some more specific embodiments, the stamped groove is rectangular in cross-section. The rectangular stamping groove is convenient to manufacture, and the electric connection sheet is convenient to manufacture.
In some alternative embodiments, the stamped groove has a length of 0.2mm to 0.4mm. It can be understood that, in this embodiment, the length undersize of the stamping groove is inconvenient to process, and the oversize results in the oversize of the whole size of the stamping groove, so that the electrical connection sheet is easy to break, in this embodiment, the length of the stamping groove is controlled between 0.2mm and 0.4mm, which not only facilitates processing, but also ensures the strength of the electrical connection sheet, reduces the probability of breaking the electrical connection sheet in the using process, and prolongs the service life of the electrical connection sheet. Of course, in other embodiments of the present invention, the length of the stamping groove can also be selected according to actual needs, and is not limited to 0.2mm-0.4mm in this embodiment.
In some alternative embodiments, the width of the stamped groove is 0.2mm to 0.4mm. It can be understood that, in this embodiment, too small a width of the punched groove is inconvenient to process, and too large a width of the punched groove results in too large an overall size of the punched groove, so that the electrical connection sheet is easy to break, in this embodiment, the width of the punched groove is controlled to be between 0.2mm and 0.4mm, which not only facilitates processing but also ensures the strength of the electrical connection sheet, reduces the probability of breaking the electrical connection sheet in the use process, and prolongs the service life of the electrical connection sheet. Of course, in other embodiments of the present invention, the width of the stamping groove can also be selected according to actual needs, and is not limited to 0.2mm-0.4mm in this embodiment.
In some alternative embodiments, the depth of the stamped groove is 0.05mm to 0.1mm. It can be understood that, in this embodiment, the depth of the stamping groove is too small, which may not well reduce the reflection effect of the terminal welding area 11, and too large, which may easily break the electrical connection sheet, in this embodiment, the depth of the stamping groove is controlled to be between 0.05mm and 0.1mm, which not only facilitates the processing, but also ensures the strength of the electrical connection sheet, reduces the probability of breaking the electrical connection sheet in the using process, and prolongs the service life of the electrical connection sheet. Of course, in other embodiments of the present invention, the depth of the stamping groove can also be selected according to actual needs, and is not limited to 0.05mm-0.1mm in this embodiment.
In some alternative embodiments, the spacing between the stamped grooves of two adjacent rows is 0.1mm to 0.3mm. It can be understood that, the interval undersize of the punching press recess of two adjacent lines then inconvenient processing and make the electric connection piece break easily, the interval of the punching press recess of two adjacent lines is too big then can not be fine reduce the reflection effect of utmost point post weld zone 11, in this embodiment, the interval control of the punching press recess of two adjacent lines is between 0.1mm-0.3mm, the processing of punching press recess has been made things convenient for on the one hand and the electric connection piece probability of breaking has been reduced, on the other hand can be fine reduce the reflection effect of utmost point post weld zone 11, promote utmost point post weld zone 11 and utmost point post welding fastness. Of course, in the other embodiments of the present invention, the distance between two adjacent rows of stamping grooves can also be selected according to actual needs, and is not limited to 0.1mm-0.3mm in this embodiment.
In some alternative embodiments, the distance between two adjacent rows of punched grooves is 0.1mm-0.3mm. It can be understood that, the interval undersize of the adjacent two rows of stamping grooves is inconvenient to process and makes the electric connection piece break easily, the interval oversize of the adjacent two rows of stamping grooves is the reflection effect of the reduction utmost point post weld zone 11 that can not be fine, in this embodiment, the interval control of the adjacent two rows of stamping grooves is between 0.1mm-0.3mm, on the one hand, the processing of the stamping grooves is facilitated and the breakage probability of the electric connection piece is reduced, on the other hand, the reflection effect of the reduction utmost point post weld zone 11 that can be fine, and the welding firmness of the utmost point post weld zone 11 and the utmost point post is improved. Of course, in the other embodiments of the present invention, the distance between two adjacent rows of stamping grooves can also be selected according to actual needs, and is not limited to 0.1mm-0.3mm in this embodiment.
In some specific embodiments, the tab welding area 12 is provided with an avoiding groove 14, and the avoiding groove 14 is used for avoiding other structures on the top cover plate, so that the installation of the electrical connection plate is facilitated.
In some embodiments, the corners of the tab body 1 have rounded corners 15. Therefore, the phenomenon that the corner of the electric connection sheet is too sharp to scratch a user can be avoided, and the use safety of the electric connection sheet is improved.
The embodiment is as follows:
as shown in fig. 1, the electrical connection sheet of the present embodiment includes a connection sheet body 1, the connection sheet body 1 has a tab welding area 12 and a pole welding area 11, which are oppositely disposed, the tab welding area 12 is connected with a tab, the pole welding area 11 is provided with an embossing structure 13, and is connected with a pole. The embossing structure 13 includes a plurality of punching grooves arranged in a plurality of rows and a plurality of columns. The cross section of the stamping groove is square, the length and the width of the stamping groove are both 0.3mm, and the depth is 0.1mm. The interval of the punching grooves of two adjacent lines is 0.2mm, the interval of two adjacent lines of punching grooves is 0.2mm, the embossing structure 13 is arranged at one end of the connecting sheet body 1, and the other end of the connecting sheet body 1 is provided with an avoiding groove 14. The connecting piece body 1 has rounded corners 15 at its corners.
The utility model also discloses a battery, including electric connection piece, top cap piece, casing and electric core in the foreland, the one end of casing opens the setting, and the top cap piece is installed in the end that opens of casing, and the utmost point ear weld zone 12 of electric connection piece links to each other with the utmost point ear welding of electric core, and the utmost point post weld zone 11 of electric connection piece links to each other with utmost point post laser welding on the top cap piece.
The utility model discloses a battery, owing to have before the electricity connect the piece, the electric connection piece of this battery is better with the welding reliability of utmost point post, has ensured that electric core can switch on with utmost point post steadily, ensures the use reliability of battery.
In the description herein, references to the description of "some embodiments," "other embodiments," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
The above description is only for the preferred embodiment of the present invention, and for those skilled in the art, there are variations on the detailed description and the application scope according to the idea of the present invention, and the content of the description should not be construed as a limitation to the present invention.
Claims (10)
1. The electric connection piece is characterized in that the electric connection piece is used for conducting a pole on the top cover plate and a pole lug of an electric core, the electric connection piece comprises a connection piece body (1), the connection piece body (1) is provided with a pole welding area (11) and a pole lug welding area (12), the pole lug welding area (11) is connected with the pole lug, the pole lug welding area (12) is connected with the pole lug, and a passivation layer is arranged on the connection piece body (1).
2. An electrical connection sheet according to claim 1, wherein an embossed structure (13) is further provided on the post land (11).
3. The electrical connection sheet according to claim 2, wherein the embossed structure (13) comprises a plurality of punched grooves arranged in a plurality of rows and a plurality of columns.
4. The electrical connection sheet according to claim 3, wherein the cross section of the punched groove is rectangular.
5. The electrical connection sheet according to claim 4, wherein the length of the punched groove is 0.2mm to 0.4mm, and the width of the punched groove is 0.2mm to 0.4mm.
6. The electrical connection sheet according to claim 3, wherein the depth of the punched groove is 0.05mm to 0.1mm.
7. The electrical connection sheet according to claim 3, wherein the pitch of two adjacent rows of the punched grooves is 0.1mm to 0.3mm, and the pitch of two adjacent columns of the punched grooves is 0.1mm to 0.3mm.
8. The electrical connection sheet according to claim 1, wherein an escape groove (14) is provided on the tab welding region (12).
9. An electrical connection tab according to claim 1, wherein the corner of the connection tab body (1) has a rounded corner (15).
10. The battery is characterized by comprising the electric connecting sheet, the top cover sheet, the shell and the battery cell of any one of claims 1 to 9, wherein one end of the shell is arranged in an open mode, the top cover sheet is installed at the open end of the shell, a lug welding area (12) of the electric connecting sheet is connected with a lug of the battery cell in a welding mode, and a pole welding area (11) of the electric connecting sheet is connected with a pole on the top cover sheet in a laser welding mode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222909345.1U CN218602679U (en) | 2022-11-02 | 2022-11-02 | Electric connection sheet and battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222909345.1U CN218602679U (en) | 2022-11-02 | 2022-11-02 | Electric connection sheet and battery |
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| Publication Number | Publication Date |
|---|---|
| CN218602679U true CN218602679U (en) | 2023-03-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222909345.1U Active CN218602679U (en) | 2022-11-02 | 2022-11-02 | Electric connection sheet and battery |
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| CN (1) | CN218602679U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117878540A (en) * | 2024-03-12 | 2024-04-12 | 蜂巢能源科技股份有限公司 | Connection piece and electric core |
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2022
- 2022-11-02 CN CN202222909345.1U patent/CN218602679U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117878540A (en) * | 2024-03-12 | 2024-04-12 | 蜂巢能源科技股份有限公司 | Connection piece and electric core |
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