Title:
ELECTROMAGNETIC MECHANISM
Document Type and Number:
WIPO Patent Application WO/2023/246667
Kind Code:
A1
Abstract:
An electromagnetic mechanism, comprising a coil, a core arranged in the coil, an outer magnet yoke and an inner magnet yoke, wherein the inner magnet yoke is located between the coil and the outer magnet yoke; a permanent magnet is provided on the inner magnet yoke; an inner bending pin bent in the direction of the core is provided on a side face of the inner magnet yoke that is close to the core; the inner bending pin is provided with an avoidance groove for avoiding the core; and a first air gap is formed between the periphery of the core and the inner bending pin. The inner bending pin of the inner magnet yoke is provided with the avoidance groove for avoiding the core, the first air gap in contact with the inner magnet yoke is formed on the periphery of the core, a new magnetic circuit is formed on an outer side of the inner magnet yoke by means of the first air gap, and the permanent magnet attracts the new magnetic circuit, such that the characteristics of attraction and release can be guaranteed. In addition, there is no need to use a gasket, thereby solving the problems caused by a gasket of an increase in assembly difficulty, it being difficult to control the size, and serious assembly errors.
Inventors:
HU JIANGUO (CN)
XIAO TIFENG (CN)
LI SHUAI (CN)
YANG HUI (CN)
XU SHENGGUO (CN)
XIAO TIFENG (CN)
LI SHUAI (CN)
YANG HUI (CN)
XU SHENGGUO (CN)
Application Number:
PCT/CN2023/100908
Publication Date:
December 28, 2023
Filing Date:
June 17, 2023
Export Citation:
Assignee:
ZHEJIANG CHINT ELECTRICS CO LTD (CN)
International Classes:
H01H50/16; H01H50/36
Foreign References:
| CN218333627U | 2023-01-17 | |||
| JP2007059460A | 2007-03-08 | |||
| US4947146A | 1990-08-07 | |||
| CN104409236A | 2015-03-11 | |||
| CN102214538A | 2011-10-12 |
Attorney, Agent or Firm:
BEIJING JOYAN INTELLECTUAL PROPERTY OFFICE (CN)
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