CN-224204214-U - Current collecting disc assembly, battery and electric equipment

Abstract

The utility model discloses a current collecting disc assembly, a battery and electric equipment, wherein the current collecting disc assembly comprises a current collecting disc and a current guiding piece, the current guiding piece comprises a pole current guiding part and a plurality of current collecting disc current guiding parts, first ends of the current collecting disc current guiding parts are electrically connected with the current collecting disc, second ends of the current collecting disc current guiding parts are electrically connected with the pole current guiding part, and the pole current guiding part is suitable for being electrically connected with a pole. Therefore, the current collecting disc assembly can realize bidirectional or multidirectional flow guiding, so that the high-rate battery performance can be realized.

Inventors

• Yao Lvhua

Assignees

• 比亚迪股份有限公司

Dates

Publication Date

20260505

Application Date

20250314

Claims (20)

1. 1. A current collecting tray assembly, comprising: A collecting tray (10); a flow guide (20), wherein the flow guide (20) comprises a pole flow guide part (21) and a plurality of flow collecting disc flow guide parts (22), a first end (85) of the flow collecting disc flow guide part (22) is electrically connected with the flow collecting disc (10), and a second end (86) of the flow collecting disc flow guide part (22) is electrically connected with the pole flow guide part (21); the pole deflector (21) is adapted to be electrically connected to a pole (41).
2. 2. The current collecting tray assembly according to claim 1, wherein an included angle range between a thickness direction of the pole guide portion and a thickness direction of the current collecting tray assembly is [0 °,60 °.
3. 3. The current collecting plate assembly according to claim 1, wherein the second ends (86) of a plurality of the current collecting plate current guiding portions (22) are spaced apart on the pole current guiding portion (21).
4. 4. A collector plate assembly according to claim 3, wherein the number of collector plate flow guiding parts (22) is two, the two collector plate flow guiding parts (22) are oppositely arranged, or The number of the flow collecting disc flow guiding parts (22) is four, two flow collecting disc flow guiding parts (22) are oppositely arranged, and the other two flow collecting disc flow guiding parts (22) are oppositely arranged.
5. 5. Collector disc assembly according to claim 1, characterized in that the pole deflector (21) is arranged protruding with respect to a plurality of the collector disc deflector (22) in a direction away from the collector disc (10).
6. 6. The current collecting tray assembly according to claim 1, wherein the flow guide (20) further comprises: The two ends of the transition parts (30) are respectively connected with the current collecting disc flow guiding part (22) and the pole flow guiding part (21) so as to enable the current collecting disc flow guiding part (22) and the pole flow guiding part (21) to be electrically connected.
7. 7. The current collecting plate assembly according to claim 6, wherein a distance from an end of the transition portion (30) to which the post current guiding portion (21) is connected to the current collecting plate (10) is greater than a distance from an end of the transition portion (30) to which the current collecting plate current guiding portion (22) is connected to the current collecting plate (10) in a direction of a thickness of the current collecting plate (10).
8. 8. The current collecting plate assembly according to claim 7, wherein the vertical distance of the transition portion (30) to the central axis of the post flow guide portion (21) increases in a direction approaching the current collecting plate (10).
9. 9. The collector disc assembly of claim 1, wherein at least a portion of said collector disc deflector (22) is in face-to-face contact with said collector disc (10).
10. 10. The collector disc assembly according to claim 1, wherein at least part of the collector disc deflector (22) is welded to the collector disc (10).
11. 11. The collecting tray assembly according to claim 1, wherein the post flow guiding portion (21) is provided with a first liquid passing hole (211), the first liquid passing hole (211) is provided penetrating in a thickness direction of the post flow guiding portion (21), and/or The flow collecting disc (10) is provided with a plurality of second liquid passing holes (11), the second liquid passing holes (11) penetrate through the flow collecting disc (10) in the thickness direction, and the second liquid passing holes (11) are arranged on the flow collecting disc (10) at intervals.
12. 12. The current collecting plate assembly according to any one of claims 1-11, wherein a first flange (12) is provided at the peripheral edge of the current collecting plate (10), the first flange (12) is bent and arranged relative to the current collecting plate (10) towards the side where the current guiding piece (20) is located, and the first flange (12) is located at the side, away from the pole guiding part (21), of the current collecting plate guiding part (22) so as to limit the current collecting plate guiding part (22).
13. 13. The collecting tray assembly according to claim 12, wherein the height of the first flange (12) in the thickness direction of the collecting tray (10) is h satisfying the relation 0.3 mm≤h≤2 mm.
14. 14. Collector disc assembly according to any of claims 1-11, characterized in that the collector disc (10) is provided with at least one connection part (13), which connection part (13) is arranged protruding in the thickness direction of the collector disc (10) in a direction away from the flow guide (20), which connection part (13) is intended for electrical connection with a battery cell (82).
15. 15. Collector disc assembly according to claim 14, wherein the front projection of the collector disc deflector (22) and the front projection of the connecting part (13) are at least partially offset in the thickness direction of the collector disc (10).
16. 16. The collecting tray assembly according to claim 14, wherein a plurality of said connecting portions (13) are provided, a plurality of said connecting portions (13) being provided at intervals on said collecting tray (10), at least a portion of said collecting tray flow guiding portions (22) being provided between adjacent two of said connecting portions (13).
17. 17. The current collecting tray assembly according to any of claims 1-11, wherein the flow guide (20) is an integrally formed metal structural member.
18. 18. The collecting tray assembly according to claim 17, wherein the flow guide member (20) is an integrally formed copper or stainless steel member.
19. 19. A battery, comprising: the shell is provided with a containing cavity, and a through hole (401) is formed in the shell; a battery cell (82) accommodated in the accommodating cavity; a pole (41), wherein the pole (41) is penetrated in the through hole (401); The current collecting tray assembly (100) according to any one of claims 1-18, wherein the current collecting tray assembly (100) is accommodated in the accommodating cavity, the pole guide part (21) is electrically connected with the pole (41), and the current collecting tray (10) is electrically connected with the electric core (82).
20. 20. The battery according to claim 19, wherein the housing includes a case (81) and a cover plate (40), the case (81) is provided with an opening (83), the cover plate (40) seals the opening (83), and the through hole (401) is provided in the cover plate (40).

Description

Current collecting disc assembly, battery and electric equipment Technical Field The utility model relates to the technical field of batteries, in particular to a current collecting disc assembly, a battery and electric equipment. Background In the prior art, the current flowing path between the current collecting disc and the pole in the battery is single, the overcurrent capacity of the battery core is poor, when a problem occurs in the single current path, the problem of short circuit of the battery can be caused, and the high-rate charge and discharge performance is difficult to realize. Disclosure of utility model The present utility model aims to solve at least one of the technical problems existing in the prior art. Therefore, the utility model provides a current collecting disc assembly of a battery, which can realize bidirectional or multidirectional flow guiding, so that the battery performance with high multiplying power can be realized. The utility model further provides a battery. The utility model further provides electric equipment. The current collecting disc assembly comprises a current collecting disc and a current guiding piece, wherein the current guiding piece comprises a pole current guiding part and a plurality of current collecting disc current guiding parts, first ends of the current collecting disc current guiding parts are electrically connected with the current collecting disc, second ends of the current collecting disc current guiding parts are electrically connected with the pole current guiding parts, and the pole current guiding parts are suitable for being electrically connected with poles. Therefore, the current collecting disc assembly can realize bidirectional or multidirectional flow guiding, so that the high-rate battery performance can be realized. According to some embodiments of the utility model, the included angle between the thickness direction of the pole flow guide and the thickness direction of the collector plate assembly is in the range of [0 °,60 ° ]. According to some embodiments of the utility model, the second ends of the plurality of collector disc flow directing parts are spaced apart on the pole flow directing part. According to some embodiments of the utility model, the number of the flow collecting disc flow guiding parts is two, the two flow collecting disc flow guiding parts are oppositely arranged, or the number of the flow collecting disc flow guiding parts is four, the two flow collecting disc flow guiding parts are oppositely arranged, and the other two flow collecting disc flow guiding parts are oppositely arranged. According to some embodiments of the utility model, the pole diversion part is arranged in a protruding way relative to the plurality of current collecting disc diversion parts in a direction away from the current collecting disc. According to some embodiments of the utility model, the flow guide piece further comprises a plurality of transition parts, wherein two ends of the transition parts are respectively connected with the flow collecting disc flow guide part and the pole flow guide part, so that the flow collecting disc flow guide part and the pole flow guide part are electrically connected. According to some embodiments of the utility model, the distance from the end of the transition portion connected to the pole flow guiding portion to the collector plate is greater than the distance from the end of the transition portion connected to the collector plate flow guiding portion to the collector plate in the thickness direction of the collector plate. According to some embodiments of the utility model, the vertical distance of the transition to the central axis of the post flow guide increases in a direction approaching the collector plate. According to some embodiments of the utility model, at least a portion of the manifold hub flow directing portion is in surface contact with the manifold hub. According to some embodiments of the utility model, at least a portion of the manifold hub flow guide is welded to the manifold hub. According to some embodiments of the utility model, the pole flow guiding part is provided with a first liquid through hole, the first liquid through hole penetrates through the pole flow guiding part along the thickness direction of the pole flow guiding part, and/or the collecting disc is provided with a plurality of second liquid through holes, the second liquid through holes penetrate through the collecting disc along the thickness direction of the collecting disc, and the second liquid through holes are arranged on the collecting disc at intervals. According to some embodiments of the utility model, a first flange is provided at the peripheral edge of the current collecting disc, the first flange is bent and arranged opposite to the current collecting disc towards the side where the current guiding piece is located, and the first flange is located at the side of the current collecting disc current g