Title:
THERMAL CUTOFF
Document Type and Number:
WIPO Patent Application WO/2020/186717
Kind Code:
A1
Abstract:
A thermal cutoff at least comprises a current carrying fusible element (104, 204, 312, 404, 504, 604) having two ends respectively connected to a first electrode (107, 207, 308, 408, 508, 607) and a second electrode (108, 208, 309, 409, 509, 608). The current carrying fusible element is provided in a closed cavity bounded by a housing (101, 201, 301, 401, 501, 601) having an open end, a cover plate (102, 202, 302, 402, 502, 602) and a sealant (103, 203, 304, 403, 503, 603). The thermal cutoff further comprises a first lead (109, 209, 310, 412, 512, 609) and a second lead (110, 210, 311, 413, 513, 610) enclosed in insulating sheaths. One ends of the first lead and the second lead are respectively electrically connected to the first electrode and the second electrode. The sealant fills in the opening of the housing, at least covers an electrical joint between the first lead and a first electrode plate and an end of the first lead, and covers an electrical joint between a second electrode plate and the second lead and an end of the second lead. The thermal cutoff exhibits good sealing and protection performance, and is applicable to corresponding scenarios.
Inventors:
HONG YAOXIANG (CN)
Application Number:
PCT/CN2019/106991
Publication Date:
September 24, 2020
Filing Date:
September 20, 2019
Export Citation:
Assignee:
XIAMEN SET ELECTRONICS CO LTD (CN)
International Classes:
H01H85/06; H01H85/08; H01H85/143; H01H85/175; H01H85/38
Foreign References:
| CN201638772U | 2010-11-17 | |||
| CN201638772U | 2010-11-17 | |||
| CN208093500U | 2018-11-13 | |||
| CN205723413U | 2016-11-23 | |||
| JP2009087892A | 2009-04-23 | |||
| CN201920354461U | 2019-03-20 | |||
| CN208093500U | 2018-11-13 |
Other References:
See also references of EP 3910660A4
Attorney, Agent or Firm:
BEIJING RUN ZEHENG INTELLECTUAL PROPERTY LAW FIRM (CN)
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