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Patent Searching and Data


Title:
ADJUSTABLE THERMAL TRIPPING DEVICE FOR MINIATURE CIRCUIT BREAKER
Document Type and Number:
WIPO Patent Application WO/2016/107364
Kind Code:
A1
Abstract:
Disclosed is an adjustable thermal tripping device for a miniature circuit breaker, which is mounted inside a base (101) of the miniature circuit breaker, and which comprises: a tripping mechanism (106), a thermal deformation element (107) and an adjustment mechanism (102). The tripping mechanism has a protruding tripping link (161). The thermal deformation element is provided to be near the tripping link, and there is an interval between the thermal deformation element and the tripping link. The adjustment mechanism adjusts the distance of the interval between the tripping link and the thermal deformation element. A current in a loop where the miniature circuit breaker is connected heats and deforms the thermal deformation element, and thus the deformed thermal deformation element moves towards the tripping link to come into contact therewith and push same, such that the tripping mechanism is triggered to trip. The adjustment mechanism adjusts the distance between the thermal deformation element and the tripping link so as to adjust a setting current in the loop. The use of a rigid member to adjust the distance between the thermal deformation element and the tripping link in the tripping device can ensure the distance between the thermal deformation element and the tripping link is constant in each operation, and thus the tripping device is applicable to an electric motor.

Inventors:
LU KEJUN (CN)
YAN PENGBIN (CN)
Application Number:
PCT/CN2015/096096
Publication Date:
July 07, 2016
Filing Date:
December 01, 2015
Export Citation:
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Assignee:
SEARI ELECTRIC TECHNOLOGY CO LTD (CN)
SHANGHAI NOARK ELECTRIC CO LTD (CN)
International Classes:
H01H71/14; H01H71/74
Foreign References:
CN104465247A2015-03-25
CN204303720U2015-04-29
CN201594512U2010-09-29
CN2563744Y2003-07-30
CN203826317U2014-09-10
CN101364507A2009-02-11
US6980071B22005-12-27
JP3794450B22006-07-05
Other References:
See also references of EP 3242313A4
Attorney, Agent or Firm:
SHANGHAI PATENT & TRADEMARK LAW OFFICE, LLC (CN)
上海专利商标事务所有限公司 (CN)
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