CN213816461U - Cylinder electricity core connection piece and cylinder electricity core - Google Patents
Cylinder electricity core connection piece and cylinder electricity core Download PDFInfo
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- CN213816461U CN213816461U CN202023009645.1U CN202023009645U CN213816461U CN 213816461 U CN213816461 U CN 213816461U CN 202023009645 U CN202023009645 U CN 202023009645U CN 213816461 U CN213816461 U CN 213816461U
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- utmost point
- electricity core
- point ear
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- 238000010030 laminating Methods 0.000 claims abstract description 8
- 230000002787 reinforcement Effects 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 5
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 229910000679 solder Inorganic materials 0.000 abstract description 2
- 230000003014 reinforcing effect Effects 0.000 description 5
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- 230000002349 favourable effect Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000004804 winding Methods 0.000 description 2
- 239000011324 bead Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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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 a cylinder electricity core connection piece and cylinder electricity core belongs to electric core technical field, and cylinder electricity core connection piece includes utmost point ear connecting portion, and utmost point ear connecting portion are platelike structure, platelike structure stamping forming have first recess and with the corresponding first arch of first recess, first arch have can with the connection plane of laminating mutually of the utmost point ear of cylinder electricity core. Compared with the prior art, the structural strength of the tab connecting part can be enhanced, the tab connecting part is prevented from being distorted, the effective area of the tab connecting part and the tab is increased, the tab connecting part and the tab are favorably improved in welding quality, the problem of insufficient solder and the like is avoided, the overcurrent capacity is improved, and the service life of the cylindrical battery core is prolonged.
Description
Technical Field
The utility model relates to an electricity core technical field especially relates to a cylinder electricity core connection piece and cylinder electricity core.
Background
At present, most of cylindrical battery cores adopt the mode that the lugs are rubbed flat and then are connected with the lugs and the poles through connecting sheets, and the structural space utilization rate is high. But the connection piece distorts easily for the flatness of connection piece is relatively poor, and in the connection process of utmost point ear and connection piece, the plane laminating that connection piece and utmost point ear were rubbed flat and are formed is incomplete, appears a series of problems such as rosin joint easily, leads to the overcurrent capacity poor, and electric core life is shorter.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a cylinder electricity core connection piece and cylinder electricity core to the connection piece that exists among the solution prior art rubs the plane laminating of flat formation with utmost point ear incomplete, appears a series of problems such as rosin joint easily, leads to the overcurrent capacity poor, the shorter problem of electricity core life.
As the conception, the utility model adopts the technical proposal that:
the utility model provides a cylinder electricity core connection piece, includes utmost point ear connecting portion, utmost point ear connecting portion are platelike structure, platelike structure stamping forming have first recess and with the corresponding first arch of first recess, first arch has the connection plane that can laminate mutually with the utmost point ear of cylinder electricity core.
Furthermore, the plate-shaped structure is also punched and formed with a second groove and a second protrusion corresponding to the second groove, the first protrusion and the second protrusion are located on the same side of the plate-shaped structure, and the depth of the second groove is smaller than that of the first groove.
Further, the number of the first grooves and the number of the second grooves are two, the two first grooves are symmetrically arranged about a first plane passing through the center of the plate-shaped structure, the two second grooves are symmetrically arranged about a second plane passing through the center of the plate-shaped structure, and the first plane and the second plane are perpendicular to each other.
Further, the second groove is a strip-shaped groove.
Further, the first grooves are provided in two numbers, and the two first grooves are symmetrically arranged with respect to a plane passing through the center of the plate-like structure.
Further, the first groove is a V-shaped groove.
Further, the cylindrical battery cell connecting piece further comprises a pole connecting portion, the pole connecting portion comprises a first portion and a second portion which are connected, the first portion is connected to the second portion and between the pole lug connecting portions, and the second portion is used for connecting a pole.
Further, a reinforcing rib is arranged on the first portion along the extending direction of the first portion.
Furthermore, the second portion is provided with a connecting hole, and a fastener can penetrate through the connecting hole to be connected to the pole so as to connect the second portion with the pole.
The utility model also provides a cylinder electricity core, cylinder electricity core connection piece in the above-mentioned arbitrary scheme.
The utility model has the advantages that:
the utility model provides a cylinder electricity core connection piece and cylinder electricity core, cylinder electricity core connection piece include utmost point ear connecting portion, and utmost point ear connecting portion are platelike structure, platelike structure stamping forming have first recess and with the first arch that first recess is corresponding, first arch have can with the connection plane of laminating mutually of the utmost point ear of cylinder electricity core. Compared with the prior art, the structural strength of the tab connecting part can be enhanced, the tab connecting part is prevented from being distorted, the effective area of the tab connecting part and the tab is increased, the tab connecting part and the tab are favorably improved in welding quality, the problem of insufficient solder and the like is avoided, the overcurrent capacity is improved, and the service life of the cylindrical battery core is prolonged.
Drawings
Fig. 1 is a schematic structural diagram of a first view angle of a cylindrical cell connecting sheet provided by the present invention;
fig. 2 is a schematic diagram of a second view angle of the cylindrical cell connecting sheet provided by the present invention.
In the figure:
1. connecting a cylindrical battery cell; 11. a tab connecting part; 111. a first groove; 112. a first protrusion; 113. a second groove; 114. a second protrusion; 12. a pole connecting part; 121. a first part; 1211. reinforcing ribs; 122. a second section; 1221. and connecting the holes.
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. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not limiting of the invention. It should be further noted that, for the convenience of description, only some but not all of the elements related to the present invention are shown in the drawings.
In the description of the present invention, unless expressly stated or limited otherwise, the terms "connected," "connected," and "fixed" are to be construed broadly, e.g., as meaning permanently connected, detachably connected, or integral to one another; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the present disclosure, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact between the first and second features, or may comprise contact between the first and second features not directly. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.
In the description of the present embodiment, the terms "upper", "lower", "left", "right", and the like are used in the orientation or positional relationship shown in the drawings only for convenience of description and simplicity of operation, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, the terms "first" and "second" are used only for descriptive purposes and are not intended to have a special meaning.
This embodiment provides a cylinder electricity core connection piece 1, and this cylinder electricity core connection piece 1 is used for connecting utmost point ear and utmost point post. Specifically, as shown in fig. 1 and fig. 2, the cylindrical cell connecting sheet 1 includes a tab connecting portion 11, the tab connecting portion 11 is a plate-shaped structure, a first groove 111 and a first protrusion 112 corresponding to the first groove 111 are formed in the plate-shaped structure by stamping, and the first protrusion 112 has a connecting plane capable of being attached to a tab of a cylindrical cell.
It can be understood that, platelike structure has first recess 111 and first arch 112 through stamping forming, first arch 112 has the connection plane of laminating mutually with utmost point ear, can strengthen utmost point ear connecting portion 11's structural strength, avoid utmost point ear connecting portion 11 to appear the distortion, compare in prior art, although connection plane's area is less, but connection plane's plane degree is better, make utmost point ear connecting portion 11 and the effective area of utmost point ear laminating increase, be favorable to improving the welding quality of utmost point ear connecting portion 11 and utmost point ear, avoid appearing the problem of rosin joint, improve the ability to flow, and then the life of extension cylinder electricity core.
Further, in the present embodiment, there are two first grooves 111, and the two first grooves 111 are symmetrically disposed. Correspondingly, there are two first protrusions 112, and the two first protrusions 112 are symmetrically arranged. Through setting up two first recesses 111 and two first bulges 112, further improved the structural strength of utmost point ear connecting portion 11, and further increased the area that utmost point ear connecting portion 11 and utmost point ear laminated mutually, be favorable to improving the weld zone intensity of utmost point ear connecting portion 11 and utmost point ear. Moreover, the two first grooves 111 are symmetrically arranged about a plane passing through the center of the plate-shaped structure, which is beneficial to enhancing the overall strength of the plate-shaped structure and improving the uniformity of the strength of the plate-shaped structure. Of course, in other embodiments, the number of the first grooves 111 and the number of the first protrusions 112 may be set according to actual needs, but the number of the first grooves 111 is the same as the number of the first protrusions 112.
As shown in fig. 1, the plate-shaped structure is further stamped with a second groove 113 and a second protrusion 114 corresponding to the second groove 113, the first protrusion 112 and the second protrusion 114 are located on the same side of the plate-shaped structure, and the depth of the second groove 113 is smaller than that of the first groove 111. It is understood that, in the present embodiment, the second protrusion 114 is not in contact with the tab when the tab connection part 11 is welded with the tab, and the arrangement of the second groove 113 and the second protrusion 114 is only used to further enhance the structural strength of the tab connection part 11. Of course, in other embodiments, the depth of the second groove 113 may also be equal to the depth of the first groove 111, so that when the tab connecting portion 11 is welded to a tab, the second protrusion 114 has a plane that can be fitted to the plane of the tab, and the second protrusion 114 can also be welded to the tab.
Further, in the present embodiment, the second groove 113 is provided in two. It is further preferred that two first grooves 111 are symmetrically arranged with respect to a first plane through the center of the plate-like structure and two second grooves 113 are symmetrically arranged with respect to a second plane through the plate-like structure, the first plane and the second plane being perpendicular. So set up, can strengthen this utmost point ear connecting portion 11's structural strength in two directions, improve the welding strength of utmost point ear connecting portion 11 and utmost point ear.
As shown in fig. 1 and 2, in the present embodiment, the first groove 111 is a V-shaped groove, and correspondingly, the first protrusion 112 is a V-shaped protrusion. So set up, to the stress of first recess 111 when can effectively disperse electric core inflation, improve the intensity of utmost point ear connecting portion 11. Of course, in other embodiments, the first groove 111 may also be a W-shaped groove or a wave-shaped groove, in which case the first protrusion 112 is a W-shaped protrusion or a wave-shaped protrusion. In addition, in this embodiment, the second groove 113 is a strip-shaped groove, and correspondingly, the second protrusion 114 is a strip-shaped protrusion, but in other embodiments, the second groove 113 may also be a V-shaped groove, a W-shaped groove, or a wave-shaped groove, and at this time, the second protrusion 114 is a V-shaped protrusion, a W-shaped protrusion, or a wave-shaped protrusion.
As shown in fig. 1, the cylindrical cell connecting sheet 1 further includes a pole connecting portion 12, the pole connecting portion 12 includes a first portion 121 and a second portion 122 connected to each other, the first portion 121 is connected between the second portion 122 and the pole-ear connecting portion 11, and the second portion 122 is used for connecting the pole 31. In the present embodiment, the first portion 121 and the second portion 122 are both plate-shaped structures, and the first portion 121 and the second portion 122 are connected to form a T-shaped structure.
Further, the first portion 121 is provided with a rib 1211 along the extending direction thereof, and the provision of the rib 1211 contributes to improving the structural strength of the cylindrical cell connecting sheet 1. Specifically, in the present embodiment, two reinforcing ribs 1211 are provided, but in other embodiments, the number of the reinforcing ribs 1211 can be set according to actual needs. Note that the reinforcing bead 1211 in this embodiment is press-molded.
Further, the second portion 122 is opened with a connection hole 1221, and the fastener 4 can be connected to the pole 31 through the connection hole 1221 to connect the second portion 122 and the pole 31. Specifically, in this embodiment, two connection holes 1221 are formed in the second portion 122, but in other embodiments, the number of the connection holes 1221 may be set according to actual needs. Further, in the present embodiment, the fastener 4 is preferably a rivet.
In order to reduce the assembly difficulty of the components and the number of the components, the tab connecting portion 11 and the post connecting portion 12 constituting the cylindrical cell connecting sheet 1 are integrally formed, and in other embodiments, the tab connecting portion 11 and the post connecting portion 12 may be separately disposed.
In summary, the cylindrical battery cell connecting sheet 1 provided by this embodiment includes the tab connecting portion 11, the tab connecting portion 11 is a plate-shaped structure, the plate-shaped structure is formed by stamping to have the first groove 111 and the first protrusion 112 corresponding to the first groove 111, and the first protrusion 112 has a connecting plane capable of being attached to the tab of the cylindrical battery cell. Compare in prior art, can strengthen utmost point ear connecting portion 11's structural strength, avoid utmost point ear connecting portion 11 to appear distorting, although connect planar area less, connect planar plane degree better for utmost point ear connecting portion 11 increases with the effective area of utmost point ear laminating, is favorable to improving the welding quality of utmost point ear connecting portion 11 and utmost point ear, avoids appearing rosin joint scheduling problem, improves the ability of overflowing, and then prolongs the life of cylinder electricity core.
The embodiment also provides a cylindrical battery cell, which comprises the cylindrical battery cell connecting sheet 1. The cylindrical battery cell further comprises a shell, a winding core and a top cover, wherein the winding core is located in the shell, the top cover can cover the shell, and the top cover is provided with a pole.
The above embodiments have been described only the basic principles and features of the present invention, and the present invention is not limited by the above embodiments, and is not departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a cylinder electricity core connection piece, its characterized in that includes utmost point ear connecting portion (11), utmost point ear connecting portion (11) are platelike structure, platelike structure stamping forming have first recess (111) and with first recess (111) corresponding first arch (112), first arch (112) have can with the connection plane of the utmost point ear looks laminating of cylinder electricity core.
2. The cylindrical cell tab of claim 1, wherein the plate-like structure is further stamped with a second groove (113) and a second protrusion (114) corresponding to the second groove (113), the first protrusion (112) and the second protrusion (114) are located on the same side of the plate-like structure, and the depth of the second groove (113) is smaller than the depth of the first groove (111).
3. The cylindrical cell web according to claim 2, wherein there are two first grooves (111) and two second grooves (113), two first grooves (111) being symmetrically arranged with respect to a first plane passing through the center of the plate-like structure, and two second grooves (113) being symmetrically arranged with respect to a second plane passing through the center of the plate-like structure, the first plane and the second plane being perpendicular.
4. The cylindrical cell connection tab of claim 3, wherein the second groove (113) is a strip-shaped groove.
5. The cylindrical cell web according to claim 1, wherein there are two first grooves (111), and the two first grooves (111) are symmetrically arranged with respect to a plane passing through the center of the plate-like structure.
6. The cylindrical cell web of claim 1, wherein the first groove (111) is a V-groove.
7. The cylindrical cell web according to claim 1, further comprising a pole connection portion (12), wherein the pole connection portion (12) comprises a first portion (121) and a second portion (122) connected, the first portion (121) being connected between the second portion (122) and the tab connection portion (11), and the second portion (122) being for connecting a pole.
8. Cylindrical cell connection piece according to claim 7, characterized in that the first portion (121) is provided with a reinforcement rib (1211) along its extension.
9. The cylindrical cell connecting sheet according to claim 7, wherein the second portion (122) is provided with a connecting hole (1221), and a fastener (4) can be connected to the pole through the connecting hole (1221) to connect the second portion (122) and the pole.
10. A cylindrical cell comprising a cylindrical cell connection tab according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009645.1U CN213816461U (en) | 2020-12-14 | 2020-12-14 | Cylinder electricity core connection piece and cylinder electricity core |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023009645.1U CN213816461U (en) | 2020-12-14 | 2020-12-14 | Cylinder electricity core connection piece and cylinder electricity core |
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| Publication Number | Publication Date |
|---|---|
| CN213816461U true CN213816461U (en) | 2021-07-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202023009645.1U Active CN213816461U (en) | 2020-12-14 | 2020-12-14 | Cylinder electricity core connection piece and cylinder electricity core |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708020A (en) * | 2021-08-24 | 2021-11-26 | 湖北亿纬动力有限公司 | Vibration reduction method for tab welding and clamping tool |
| CN114824675A (en) * | 2022-05-20 | 2022-07-29 | 瑞浦兰钧能源股份有限公司 | Battery cell switching piece and welding method thereof |
-
2020
- 2020-12-14 CN CN202023009645.1U patent/CN213816461U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113708020A (en) * | 2021-08-24 | 2021-11-26 | 湖北亿纬动力有限公司 | Vibration reduction method for tab welding and clamping tool |
| CN113708020B (en) * | 2021-08-24 | 2023-05-05 | 湖北亿纬动力有限公司 | Vibration reduction method for tab welding and clamping tool |
| CN114824675A (en) * | 2022-05-20 | 2022-07-29 | 瑞浦兰钧能源股份有限公司 | Battery cell switching piece and welding method thereof |
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