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CN-117136167-B - Protection device and transportation device

CN117136167BCN 117136167 BCN117136167 BCN 117136167BCN-117136167-B

Abstract

A protection device (20) and a transportation device (10), wherein the protection device (20) is used for protecting a pole piece (3), the protection device (20) comprises a support component (2), the support component (2) is used for supporting a winding drum (4) wound with the pole piece (3), a damping component (5), the top of the damping component (5) is fixed at the bottom of the support component (2), and the bottom of the damping component (5) is used for being fixed at a bottom plate (11) of the transportation device (10). The protection device (20) and the transportation device (10) can effectively damp the pole piece (3) in the transportation process of the pole piece (3), and reduce the risk of dislocation of the pole piece (3) caused by the impact of the pole piece (3) in each direction in the transportation process.

Inventors

  • ZHANG LEI
  • HE XIONG
  • MING JUN
  • DU TAO

Assignees

  • 宁德时代新能源科技股份有限公司

Dates

Publication Date
20260505
Application Date
20211229

Claims (15)

  1. 1. A protection device for protecting a pole piece (3), characterized in that the protection device (20) comprises: the support assembly (2) is used for supporting the winding drum (4) wound with the pole piece (3); -a shock absorbing assembly (5), the shock absorbing assembly (5) comprising a shock absorbing member (51) and a mount (52), the top of the shock absorbing member (51) being fixed to the bottom of the support assembly (2), the mount (52) comprising an outer mount (521) and an inner mount (522), the bottom of the shock absorbing member (51) being fixed to the inner mount (521), the inner mount (521) being detachably connected to the outer mount (522), the outer mount (522) being configured to be fixed to a floor (11) of a transportation device (10); The shock absorber (51) comprises a first fixing part (511), a second fixing part (512) and a shock absorbing unit (513); The first fixing part (511) is fixed on the supporting component (2), the damping unit (513) is fixed between the first fixing part (511) and the second fixing part (512), and the second fixing part (512) is fixed on the fixing frame (52).
  2. 2. Protection device according to claim 1, characterized in that the damping unit (513) comprises an elastic element or a hydraulic element.
  3. 3. Protection device according to claim 1, characterized in that the support assembly (2) comprises a support (21), on which support (21) a catch (22) is provided, between which support (21) and catch (22) a receiving space (23) is formed for receiving the reel (4).
  4. 4. A protection device according to claim 3, characterized in that in the receiving space (23) a first cushion is provided on the support (21) and/or a second cushion (24) is provided on the catch.
  5. 5. The protection device according to claim 4, wherein the material of the first cushion pad comprises rubber, polyethylene or silicone and/or the material of the second cushion pad (24) comprises rubber, polyethylene or silicone.
  6. 6. The protection device according to claim 4, characterized in that the thickness of the first cushion pad and/or the second cushion pad (24) ranges from 4 to 20mm.
  7. 7. Protection device according to claim 1, characterized in that the internal mount (522) is rotatable with respect to the external mount (521) and drives the damping element (51) and the support assembly (2) to rotate and then to collapse onto the base plate (11).
  8. 8. The protection device according to claim 7, characterized in that a rotation limiter is arranged between the inner mount (522) and the outer mount (521) for limiting the inner mount (522) when the inner mount (522) rotates relative to the outer mount (521).
  9. 9. The protection device according to claim 1, wherein the external fixing frame (521) is provided with a clamping groove (521 a), the internal fixing frame (522) is provided with a clamping block (522 b), and the clamping block (522 b) is embedded in the clamping groove (521 a); The clamping block (522 b) can be removed from the clamping groove (521 a) when the inner fixing frame (522) and the outer fixing frame (521) are in a detachable state.
  10. 10. A protection device according to any one of claims 3 to 6, wherein one end of the buckle (22) is rotatably connected to the supporting portion (21), and the other end of the buckle (22) is detachably connected to the supporting portion (21).
  11. 11. The protection device according to any one of claims 3 to 6, wherein the support assembly (2) further comprises a fastening seat (25) disposed on the support portion (21), and the fastening seat (25) is used for placing the fastener (22) in a detached state with the support portion (21).
  12. 12. A transportation device, comprising: The protection device (20) according to any one of claims 1 to 11, wherein the protection device (20) is arranged on a floor (11) of the transport device (10).
  13. 13. The transport device of claim 12, further comprising: And the dustproof cover (6) is covered on the shock absorbing piece (51).
  14. 14. A transport device according to claim 12 or 13, characterized in that the transport device (10) further comprises the reel (4), the reel (4) being arranged to be placed on the support assembly (2) after winding the pole piece (3); the material of the winding drum (4) comprises metal.
  15. 15. A transport device according to claim 14, characterized in that the diameter of the reel (4) is not less than 300mm.

Description

Protection device and transportation device Technical Field The embodiment of the application relates to the technical field of batteries, in particular to a protection device and a transportation device. Background Lithium ion batteries have been widely used in recent years in power battery systems for electronic devices such as computers and mobile phones, and for new energy automobiles, because of their advantages such as high energy density, high power density, long life, and environmental protection. A battery refers to a single physical module that includes one or more battery cells (also referred to as cells) to provide a voltage. The battery monomer comprises a positive pole piece, a negative pole piece, electrolyte and a diaphragm. In the battery manufacturing process, when the pole piece is finished, it is usually required to transport to other places for further manufacturing. How to reduce the dislocation risk of the pole piece in the pole piece transportation process is a problem to be solved at present. Disclosure of Invention In view of the above, embodiments of the present application provide a protection device and a transportation device, which can reduce the risk of dislocation of pole pieces during the transportation of pole pieces. According to a first aspect of an embodiment of the present application, there is provided a protection device for protecting a pole piece, the protection device including a support assembly for supporting a roll around which the pole piece is wound, and a shock-absorbing assembly having a top portion fixed to a bottom portion of the support assembly and a bottom portion for being fixed to a bottom plate of a transportation device. In the embodiment of the application, the impact force received by the conveying device in the pole piece conveying process is transmitted from the bottom plate of the conveying device to the damping component, the damping component absorbs part or even most of the impact force, the top of the damping component is fixed at the bottom of the supporting component, the bottom of the damping component is fixed at the bottom plate of the conveying device, namely the damping component is arranged in the conveying device, and only the supporting component and the winding drum and the pole piece supported by the supporting component are required to be damped by the damping component, and other components are not required to be damped by the damping component, so that the damping weight of the damping component is reduced, the damping effect is good, the impact force transmitted to the pole pieces is reduced, the risk of dislocation due to the larger impact force between the pole pieces is reduced, the rejection risk of the pole pieces is reduced, and the yield of the pole pieces is improved. In some embodiments, the shock absorbing assembly comprises a shock absorbing member and a fixing frame, wherein the top of the shock absorbing member is fixed to the bottom of the supporting assembly, the bottom of the shock absorbing member is fixed to the top of the fixing frame, and the bottom of the fixing frame is fixed to the bottom plate of the conveying device. The shock absorbing member is arranged in the shock absorbing assembly, and the shock absorbing member are fixed between the supporting assembly and the bottom plate of the conveying device, so that the shock absorbing member can absorb the impact force received by the conveying device in the conveying process, the impact force transmitted to the pole pieces is reduced, the risk of dislocation between the pole pieces due to the fact that the impact force is larger is reduced, and the shock absorbing member is fixed through the fixing frame, so that the shock absorbing member can be prevented from moving or falling off from the position between the supporting assembly and the bottom plate of the conveying device, and the shock absorbing effect is affected. In some embodiments, the shock absorbing member includes a first fixing portion fixed to the support assembly, a second fixing portion fixed between the first fixing portion and the second fixing portion, and a shock absorbing unit fixed to the fixing frame. The damping unit is arranged in the damping piece and fixed between the supporting component and the fixing frame through the first fixing part and the second fixing part, so that the damping unit is fixed between the supporting component and the bottom plate of the conveying device, the damping unit can absorb impact force received by the conveying device in the conveying process, the impact force transmitted to the pole pieces is reduced, the risk of dislocation due to the fact that the impact force is larger between the pole pieces is reduced, and the damping unit is fixed through the first fixing part and the second fixing part, the damping unit can be prevented from moving or falling off from the position between the supporting component and the bottom plate of the conveying d