Unlock instant, AI-driven research and patent intelligence for your innovation.

breaker

A technology of circuit breakers and connecting rods, applied in high-voltage air circuit breakers, circuits, high-voltage/high-current switches, etc., can solve problems such as poor efficiency, achieve the effects of not easy to wear, achieve miniaturization, and improve stability

Active Publication Date: 2020-12-04
MITSUBISHI ELECTRIC CORP
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, in the conventional circuit breaker, there is a problem that an electromagnet that is inefficient and large is required for the characteristics of the load required by the electromagnet.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • breaker
  • breaker
  • breaker

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0024] figure 1 It is a block diagram which shows the circuit breaker which concerns on Embodiment 1 of this invention. in addition, figure 2 is a schematic representation figure 1 The structure diagram of the main part of the circuit breaker. In the figure, the circuit breaker 1 has: a frame body 2 serving as a base; a fixed contact piece 3 provided on the frame body 2; Separation; electromagnetic actuator 5 that generates a driving force that displaces movable body 4 ; and link mechanism 6 that interlocks movable body 4 and electromagnetic actuator 5 . The fixed contact 3 , the movable body 4 , the electromagnetic actuator 5 and the link mechanism 6 are arranged in the frame body 2 .

[0025] The power supply side terminals 7 and the load side terminals 8 exposed to the outside of the housing 2 are separated from each other and fixed to the housing 2 . In this example, the power supply side terminal 7 is arranged above the load side terminal 8 . The power supply side ...

Embodiment approach 2

[0076]In Embodiment 2, the restricting member 65 is constituted by an elastic member. As the restricting member 65, for example, a spring, rubber, or the like is used. The restricting member 65 is provided on the lever 61 in a state of being compressed and elastically deformed by a holder (not shown). As a result, the restricting member 65 stores an initial load exceeding the holding force of the holding body 643 that maintains the angle of the second connecting link 642 with respect to the first connecting link 641 at the first set angle. In the link mechanism 6 , when the angle of the first connecting link 641 with respect to the lever 61 becomes the second set angle, the restricting member 65 receives the first connecting link 641 , and the first connecting link 641 is opposite to the lever 61 . rotation is restricted. Other structures and operations are the same as those of the first embodiment.

[0077] In the closing operation of the present embodiment, when the plung...

Embodiment approach 3

[0082] In Embodiments 1 and 2, the restricting member 65 is fixed to the lever 61 , but the restricting member 65 may be provided on the lever 61 so as to be slidable in the longitudinal direction of the lever 61 . In the present embodiment, the restricting member 65 is slidable relative to the lever 61 between the normal position and the working position closer to the lever shaft 9 than the normal position. The material of the restricting member 65 of the present embodiment is the same as that of the restricting member 65 of the first embodiment. In addition, the restricting member 65 is held in a normal position with respect to the lever 61 by the elastic restoring force of an elastic body such as a spring (not shown). Then, the restricting member 65 is slidable from the normal position to the operating position with respect to the lever 61 by applying a force against the elastic restoring force of the elastic body to the restricting member 65 .

[0083] When the restrictin...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A supporting movable member is connected to a moving contactor. A lever coupled with the supporting movable member is rotatably supported on a lever shaft. A second coupling link is rotatably coupled with a first coupling link rotatably coupled with the lever. An electromagnet displaces a plunger rotatably coupled with the second coupling link, and displaces the supporting movable member from a non-insertion position through an insertion start position to an insertion complete position. A holding unit exerts a holding force so as to hold the angle of the second coupling link to the first coupling link at a first set angle. A limiting member limits the rotation of the first coupling link in relation to the lever in the direction in which the angle of the first coupling link to the lever decreases below a second set angle.

Description

technical field [0001] The present invention relates to a circuit breaker in which a movable contact is brought into contact with a fixed contact or the movable contact is separated from the fixed contact. Background technique [0002] Conventionally, a circuit breaker is known in which a plunger of an electromagnet and a movable contactor are linked by a link mechanism, and the plunger is moved by energizing a coil of a stator of the electromagnet, thereby connecting the movable contactor. Connect to fixed contacts. In the conventional circuit breaker as described above, a toggle mechanism is used for the link mechanism, and when the movable contact is turned on with respect to the fixed contact, the toggle mechanism reaches the dead point, and thus the movable contact The strong contact pressure against the fixed contact piece required after the turn-on of the piece is reduced, and the electromagnetic force required on the electromagnet is suppressed. [0003] However, i...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01H33/42H01H33/38
CPCH01H33/38H01H33/42
Inventor 柏宗孝今枝隆之介
Owner MITSUBISHI ELECTRIC CORP