Title:
WELDING PRESSING DEVICE
Document Type and Number:
WIPO Patent Application WO/2022/110602
Kind Code:
A1
Abstract:
A welding pressing device, comprising a fixing plate, a pressing component (2) and a first elastic member (3). The fixing plate is provided with at least one welding hole (13); the number of the pressing components corresponds to that of the welding holes, the pressing component is arranged on the fixing plate, a yielding hole (21) is provided in the middle of the pressing component and is communicated with the welding hole, and the bottom of the pressing component stretches out of the fixing plate; one end of the first elastic member abuts against the fixing plate, and the other end abuts against the pressing component. The welding pressing device enables a bent portion of a tab to be in close contact with the upper surface of a copper bar, avoiding the suspension of the tab; a laser head extends into the welding hole and the yielding hole to carry out laser welding, and the bent portion of the tab is welded on the copper bar to avoid the phenomenon of pseudo welding; and the welding pressing device has high efficiency, and will not damage a battery cell with high temperature.
Inventors:
SHI MINJIE (CN)
QIAO YONGGU (CN)
TANG KAIHUA (CN)
QIAO YONGGU (CN)
TANG KAIHUA (CN)
Application Number:
PCT/CN2021/085432
Publication Date:
June 02, 2022
Filing Date:
April 02, 2021
Export Citation:
Assignee:
JK ENERGY SYSTEM CO LTD (CN)
International Classes:
B23K1/00; B23K1/005; B23K3/08
Foreign References:
| CN112388083A | 2021-02-23 | |||
| CN110280950A | 2019-09-27 | |||
| CN110315262A | 2019-10-11 | |||
| CN209407759U | 2019-09-20 | |||
| CN204747845U | 2015-11-11 | |||
| CN210997036U | 2020-07-14 | |||
| CN211136065U | 2020-07-31 | |||
| US20160256963A1 | 2016-09-08 | |||
| US6237906B1 | 2001-05-29 |
Attorney, Agent or Firm:
CHINA FARFIR INTELLECTUAL PROPERTY AGENCY LTD. (CN)
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