MINIATURE CIRCUIT BREAKER - WENZHOU KORLEN ELECTRIC APPLIANCES CO LTD

Title:

MINIATURE CIRCUIT BREAKER

Document Type and Number:

WIPO Patent Application WO/2016/145704

Kind Code:

A1

Abstract:

A miniature circuit breaker comprises a housing (1), an electromagnetic tripping device, an overload tripping device, a lever (2), a U-shaped connecting rod (3), a trip member (4), a fixed contact (5), a movable contact (6), a hinge shaft (7) and an energy storage spring (8). The movable contact (6) comprises a lock catch (61), a support (62) and a movable contact (63). The support (62) is located on the housing (1) via the hinge shaft (7), and is provided with a first hinge shaft (621). The trip member (4) is sleeved on the first hinge shaft (621), and circumferentially swings with the first hinge shaft (621) as a center. The support (62) is provided with a second hinge shaft (622) thereon. The lock catch (61) is sleeved on the second hinge shaft (622), and has an extending portion (611) forming an interlocking structure with the trip member (4) upon contacting therewith, and an expanding portion (612) forming a first limiting structure with a protrusion (627) upon contacting. The lock catch (61) is provided with a resetting piece thereon, and the resetting piece generates a restoring force driving the lock catch (61) to swing to the protrusion (627). The miniature circuit breaker employs only the trip member, the lock catch and the support without any additional components to realize a connection among the trip member, the lock catch and the support, thus enabling a structure to be simpler and more compact.

More Like This:

WO/2017/167086	MAKE/BREAK MECHANISM FOR ELECTRICAL SWITCH
WO/2017/148638	TRIPPING MECHANISM AND ELECTROMECHANICAL SAFETY SWITCH

Inventors:

LIU LIANGGUI (CN)
ZHAO WENLONG (CN)

Application Number:

PCT/CN2015/076651

Publication Date:

September 22, 2016

Filing Date:

April 15, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

WENZHOU KORLEN ELECTRIC APPLIANCES CO LTD (CN)

International Classes:

H01H71/24

Foreign References:

CN204424190U	2015-06-24
CN202736860U	2013-02-13
CN103346046A	2013-10-09
CN102044384A	2011-05-04
DE3517748C1	1986-02-27

Attorney, Agent or Firm:

WENZHOU JINOU PATENT LAW OFFICE (GENERAL PARTNERSHIP) (CN)
温州金瓯专利事务所(普通合伙) (CN)

Download PDF:

View/Download PDF PDF Help

Previous Patent: SAFETY HELMET HAVING AUDIO INPUT AND OUTPUT FUNCTIONS

Next Patent: TIME-BASED ENCRYPTED NFC CELL PHONE TERMINAL ANTI-COUNTERFEIT SYSTEM AND METHOD