CN216750219U - Conductive connecting sheet of cylindrical battery module - Google Patents
Conductive connecting sheet of cylindrical battery module Download PDFInfo
- Publication number
- CN216750219U CN216750219U CN202220896114.9U CN202220896114U CN216750219U CN 216750219 U CN216750219 U CN 216750219U CN 202220896114 U CN202220896114 U CN 202220896114U CN 216750219 U CN216750219 U CN 216750219U
- Authority
- CN
- China
- Prior art keywords
- elastic
- sheet
- conductive connecting
- clamping part
- battery module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Connection Of Batteries Or Terminals (AREA)
Abstract
The utility model discloses a conductive connecting sheet of a cylindrical battery module, which comprises a conductive connecting sheet and a busbar, wherein a spring sheet is clamped on the side wall of the conductive connecting sheet, the conductive connecting sheet comprises a spring sheet clamping part with a cylindrical structure, and the outer wall of the spring sheet clamping part is tightly attached to spring pins on the spring sheet; the top end of the elastic sheet clamping part is provided with elastic supporting parts at equal intervals along the circumferential direction, and the tail ends of the elastic supporting parts face the axis of the elastic sheet clamping part; a horizontal welding surface is arranged above the elastic sheet clamping part, and the tail ends of the elastic supporting parts are all contacted with the welding surface; the bottom end of the elastic sheet clamping part is provided with an inward-bent supporting bottom surface, and the supporting bottom surface is contacted with the upper surface of the elastic sheet; the bus bar assembly has the advantages of high structural strength, strong vibration and extrusion deformation resistance of the conductive connecting sheets, good connection stability of the bus bar assembly and the elastic sheet, small contact internal resistance of the bus bar assembly and the like.
Description
Technical Field
The utility model relates to the technical field of new energy power batteries, in particular to a conductive connecting sheet of a cylindrical battery module.
Background
The power battery is combined in series and parallel through a plurality of single batteries to provide proper voltage and capacity for a load, so a battery pack consisting of the single batteries is required to supply power to the load, a power battery module is disclosed by the patent publication No. CN204243126U, and the power battery module is safe in electricity utilization, reliable and convenient to assemble, electrodes are connected in a spring plate mode, a busbar assembly is formed by connecting a plurality of conductive connecting sheets (namely welding discs) in parallel through conductive sheets, the electrodes of the battery are contacted with the circumferential part of the welding disc on the busbar assembly through the spring plate to transmit current, but the conductive connecting sheets are contacted with the circumferential part of the spring plate only, the structural strength is poor, the vibration resistance and the extrusion deformation resistance of the conductive connecting sheets are poor, the stability of the busbar assembly connected with the spring plate is poor, and the conductive welding is inconvenient.
SUMMERY OF THE UTILITY MODEL
The technical problem to be solved by the utility model is to overcome the existing defects and provide the conductive connecting sheet of the cylindrical battery module, the structural strength of the conductive connecting sheet is high, the anti-vibration and extrusion deformation capabilities of the conductive connecting sheet are strong, the conductive connecting sheet and the elastic sheet are always in a compression state, the connection stability of the busbar assembly and the elastic sheet is good, the contact internal resistance of the busbar assembly is small, the electric quantity stored in the battery module is kept at a high level for a long time, the conductive connecting sheet is convenient to weld, and the problems in the background technology can be effectively solved.
In order to achieve the purpose, the utility model provides the following technical scheme: a conductive connecting sheet of a cylindrical battery module comprises a conductive connecting sheet and a bus bar, wherein a spring sheet is clamped on the side wall of the conductive connecting sheet, the conductive connecting sheet is clamped with elastic pins arranged in the circumferential direction of the spring sheet, the conductive connecting sheet comprises a cylindrical-structure spring sheet clamping part, and the outer wall of the spring sheet clamping part is tightly attached to the elastic pins on the spring sheet; the top end of the elastic sheet clamping part is provided with elastic supporting parts at equal intervals along the circumferential direction, and the tail ends of the elastic supporting parts face the axis of the elastic sheet clamping part; a horizontal welding surface is arranged above the elastic sheet clamping part, and the tail ends of the elastic supporting parts are in contact with the welding surface; the bottom end of the elastic sheet clamping part is provided with an inward bent supporting bottom surface which is of a horizontal annular structure and is in contact with the upper surface of the elastic sheet; the elastic sheet clamping part, the elastic supporting part, the welding surface and the supporting bottom surface are of an integrated structure; the conductive connecting sheets are welded on the bus bars at equal intervals to form a bus bar assembly.
Furthermore, the elastic supporting part is of a V-shaped plate structure, and the included angle between two straight plates of the elastic supporting part is an obtuse angle.
Furthermore, a diversion trench is formed in the center of the upper surface of the welding surface.
Furthermore, the diversion trench is of a centrosymmetric hole-shaped structure.
Furthermore, the bottom end and the top end of the elastic sheet clamping part are both of a round angle structure.
Compared with the prior art, the utility model has the beneficial effects that: the conductive connecting sheet of the cylindrical battery module has high structural strength, has better elasticity through the elastic supporting part, and has strong vibration resistance and extrusion deformation resistance; the vibration resistance and extrusion deformation resistance of the battery module can be improved through the conductive connecting sheet; the conductive connecting sheet and the elastic sheet are always in a compressed state through the elastic supporting part, and the stability of the connection of the busbar assembly and the elastic sheet is good; the contact area of the conductive connecting sheet and the elastic sheet is increased, so that the contact internal resistance of the busbar assembly is reduced, and the electric quantity stored by the battery module is kept at a higher level for a long time; the welding face on the conductive connecting sheet is welded on the busbar through the diversion trench, so that the shunting phenomenon is prevented when the conductive connecting sheet is welded with the busbar, and the welding of the conductive connecting sheet is facilitated.
Drawings
FIG. 1 is a schematic view of a bus bar assembly according to the present invention;
FIG. 2 is a schematic view of a conductive connection pad structure according to the present invention;
FIG. 3 is a schematic axial side view of a conductive connecting piece according to the present invention;
FIG. 4 is a schematic diagram of a spring plate structure according to the present invention;
FIG. 5 is a schematic view of the connection between the conductive connecting piece and the elastic piece according to the present invention.
In the figure: 1 electrically conductive connection piece, 2 shell fragment joint portion, 3 elastic support portion, 4 welding faces, 5 guiding gutters, 6 support bottom surfaces, 7 busbar, 8 shell fragments, 81 bullet feet.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 1-5, the present invention provides a technical solution: a conductive connecting sheet of a cylindrical battery module comprises a conductive connecting sheet 1 and a busbar 7, wherein a spring sheet 8 is clamped on the side wall of the conductive connecting sheet 1, the conductive connecting sheet 1 is clamped with an elastic pin 81 arranged in the circumferential direction of the spring sheet 8, the conductive connecting sheet 1 comprises a cylindrical-structure spring sheet clamping part 2, and the outer wall of the spring sheet clamping part 2 is tightly attached to the elastic pin 81 on the spring sheet 8; the top end of the elastic sheet clamping part 2 is provided with elastic supporting parts 3 at equal intervals along the circumferential direction, and the tail ends of the elastic supporting parts 3 face the axis of the elastic sheet clamping part 2; a horizontal welding surface 4 is arranged above the elastic sheet clamping part 2, and the tail ends of the elastic supporting parts 3 are in contact with the welding surface 4; the bottom end of the elastic sheet clamping part 2 is provided with an inward bent supporting bottom surface 6, the supporting bottom surface 6 is of a horizontal annular structure, and the supporting bottom surface 6 is in contact with the upper surface of the elastic sheet 8; the elastic sheet clamping part 2, the elastic supporting part 3, the welding surface 4 and the supporting bottom surface 6 are of an integral structure; the conductive connecting sheets 1 are welded on the bus bar 7 at equal intervals to form a bus bar assembly; the center position of the upper surface of the welding surface 4 is provided with a diversion trench 5, the diversion trench 5 is of a centrosymmetric hole-shaped structure, the welding surface 4 on the conductive connecting sheet 1 is welded on the busbar 7 through the diversion trench 5, the shunting phenomenon during the welding of the conductive connecting sheet 1 and the busbar 7 is prevented, the welding of the conductive connecting sheet 1 is facilitated, the conductive connecting sheet 1 is clamped with the elastic sheet 8 through the elastic sheet clamping part 2 and the supporting bottom surface 6, compared with a conductive welding disc of a previous disc-shaped structure, the structural strength of the conductive connecting sheet 1 is high, the elastic supporting parts 3 are all of a V-shaped plate-shaped structure, the included angle between two straight plates of the elastic supporting part 3 is an obtuse angle, the conductive connecting sheet 1 has better elasticity through the elastic supporting part 3, and the conductive connecting sheet has better vibration resistance and extrusion deformation resistance; the anti-vibration and extrusion deformation capabilities of the battery module can be improved through the conductive connecting sheet 1; the conductive connecting sheet 1 and the elastic sheet 8 are always in a compressed state through the elastic supporting part 3, and the stability of the connection of the busbar assembly and the elastic sheet 8 is good; and the contact area of the conductive connecting sheet 1 and the elastic sheet 8 is increased, so that the contact internal resistance of the busbar assembly is reduced, and the electric quantity stored by the battery module is kept at a higher level for a long time.
Furthermore, the bottom end and the top end of the elastic sheet clamping part 2 are both in a round angle structure.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a conductive connection piece of cylinder battery module, includes conductive connection piece and busbar, the joint has the shell fragment on conductive connection piece's the lateral wall, and the bullet foot joint that is equipped with on conductive connection piece and the shell fragment circumferencial direction, its characterized in that: the conductive connecting sheet comprises a spring sheet clamping part with a cylindrical structure, and the outer wall of the spring sheet clamping part is tightly attached to the spring leg on the spring sheet; the top end of the elastic sheet clamping part is provided with elastic supporting parts at equal intervals along the circumferential direction, and the tail ends of the elastic supporting parts face the axis of the elastic sheet clamping part; a horizontal welding surface is arranged above the elastic sheet clamping part, and the tail ends of the elastic supporting parts are all contacted with the welding surface; the bottom end of the elastic sheet clamping part is provided with an inward-bent supporting bottom surface which is of a horizontal annular structure and is in contact with the upper surface of the elastic sheet; the elastic sheet clamping part, the elastic supporting part, the welding surface and the supporting bottom surface are of an integral structure; the conductive connecting sheets are welded on the bus bars at equal intervals to form a bus bar assembly.
2. The conductive connecting sheet of the cylindrical battery module according to claim 1, wherein: the elastic supporting part is of a V-shaped plate-shaped structure, and the included angle between two straight plates of the elastic supporting part is an obtuse angle.
3. The conductive connecting sheet of the cylindrical battery module according to claim 1, wherein: a diversion trench is formed in the center of the upper surface of the welding surface.
4. The conductive connecting sheet of cylindrical battery module according to claim 3, characterized in that: the diversion trench is of a centrosymmetric hole-shaped structure.
5. The conductive connecting sheet of the cylindrical battery module according to claim 1, wherein: the bottom and the top of the elastic sheet clamping part are both in a fillet structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220896114.9U CN216750219U (en) | 2022-04-19 | 2022-04-19 | Conductive connecting sheet of cylindrical battery module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220896114.9U CN216750219U (en) | 2022-04-19 | 2022-04-19 | Conductive connecting sheet of cylindrical battery module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216750219U true CN216750219U (en) | 2022-06-14 |
Family
ID=81921318
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220896114.9U Active CN216750219U (en) | 2022-04-19 | 2022-04-19 | Conductive connecting sheet of cylindrical battery module |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216750219U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084786A (en) * | 2022-07-05 | 2022-09-20 | 江苏正力新能电池技术有限公司 | Battery pack |
-
2022
- 2022-04-19 CN CN202220896114.9U patent/CN216750219U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115084786A (en) * | 2022-07-05 | 2022-09-20 | 江苏正力新能电池技术有限公司 | Battery pack |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN216750219U (en) | Conductive connecting sheet of cylindrical battery module | |
| CN215578775U (en) | Cylindrical battery with novel structure | |
| CN214254550U (en) | Battery and battery module | |
| CN113314807A (en) | Conductive connecting sheet and pole column structure of large-capacity battery | |
| CN102683755A (en) | Novel high-voltage lithium-ion power battery | |
| CN213340561U (en) | Lithium battery module | |
| CN212182475U (en) | Ear-free electric core and battery module | |
| CN105958004B (en) | Battery cell mould group and battery | |
| CN218135666U (en) | Ultrasonic welding head, ultrasonic equipment, battery pack and electric equipment | |
| CN216597789U (en) | Lithium battery pack assembled in series | |
| CN216015620U (en) | Conductive connecting sheet and pole column structure of large-capacity battery | |
| CN217387271U (en) | Voltage acquisition structure and battery module with same | |
| CN216488358U (en) | Battery cell module support with high flatness and shock-absorbing function | |
| CN217239629U (en) | Be used for cylinder electricity core welded module support | |
| CN215527824U (en) | Energy storage module and battery | |
| CN214043716U (en) | Lead-acid storage battery polar plate grid | |
| CN205104552U (en) | Square electric core parallel connection structure | |
| CN206040763U (en) | Battery elastic connecting device | |
| CN104157824A (en) | Conduction band and battery employing same | |
| CN206040734U (en) | Cylinder battery group | |
| CN205355127U (en) | Improve group battery of bulk strength | |
| CN215071756U (en) | Novel connecting circuit of automobile-used lithium cell | |
| CN220627879U (en) | Battery module and battery pack | |
| CN211929591U (en) | Colloidal electrolyte battery | |
| CN213184509U (en) | Battery module |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |