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Circuit breaker

A circuit breaker and circuit technology, applied in circuits, parts of protection switches, electrical components, etc., can solve the problems of reducing productivity, reducing the quality of circuit breakers, and errors, reducing the probability of errors, saving costs, The effect of increasing productivity

Active Publication Date: 2012-12-26
LSIS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the above clearance control is performed manually, errors may occur depending on each operator
In addition, even if the same operator performs gap control, errors may occur depending on each product
The time-delay operating characteristics of the circuit breaker may be affected by such errors, thus degrading the quality of the circuit breaker
[0014] Also, if the process is performed manually, it takes a lot of time to perform gap control
This reduces yield

Method used

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Examples

Experimental program
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Embodiment Construction

[0034] Exemplary embodiments will now be described in detail with reference to the accompanying drawings. For brief description with reference to the drawings, the same or equivalent components will be provided with the same reference numerals, and descriptions thereof will not be repeated.

[0035] figure 1 is a schematic diagram of a circuit breaker according to the invention.

[0036] refer to figure 1 , the circuit breaker 100 includes a housing 10 configured to house components therein. The case 10 is molded by an insulating material, and is configured to insulate the inside from the outside. This structure is a general structure, and thus a detailed description thereof will be omitted.

[0037] Provided in the housing 10 are: a switch mechanism 20 configured to switch on / off a circuit; a terminal portion 50 including a fixed contactor 51 and a movable contactor 52, and the power and the load are connected to the fixed contactor 51 and the movable contactor respective...

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PUM

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Abstract

A circuit breaker includes: a bimetal bent by heat generated from a conductive current; a pressing member coupled to an upper part of the bimetal; a cross bar spaced from the pressing member by a prescribed gap, and configured to contact the pressing member and to rotate by being pressed when the bimetal is bent; and a switching mechanism operated by rotation of the cross bar, and configured to separate a movable contactor from a fixed contactor, wherein a coupling hole for coupling the pressing member is provided at an upper part of the bimetal, and wherein the pressing member is bonded to the coupling hole after a prescribed gap between the pressing member and the cross bar has been determined by apply of a current when the pressing member is in a state of being freely movable in the coupling hole.

Description

technical field [0001] The present disclosure relates to a circuit breaker having a structure for automatically setting a gap between a bimetal and a crossbar for a time-delay operation characteristic including a detection mechanism for detecting an accident current and interrupt the circuit. Background technique [0002] Circuit breakers are used to open or close loads in substations or on circuit lines, etc., or to interrupt current flow when accidents such as ground faults or short-circuit currents occur. The circuit breaker switches the state of the circuit to the "off" or "on" state according to the user's operation. When an overload or short-circuit current occurs in the circuit, the circuit breaker interrupts the circuit to protect the load and the circuit. [0003] The circuit breaker has a time-limited trip characteristic and an instantaneous trip characteristic. The time-limit trip characteristic refers to an overcurrent trip characteristic having an operation t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H71/16H01H71/44H01H71/74
CPCH01H69/01H01H71/522H01H71/16H01H9/34
Inventor 金雄载
Owner LSIS CO LTD
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