Electromagnetic type quick tripping device and circuit breaker
A tripping device and electromagnetic technology, applied in circuit breaker parts, protection switch operation/release mechanisms, etc., can solve the problems of complex structure of connecting conductive lines, narrow gas path for gas blowing and arc extinguishing, difficult operation methods, etc. The effect of avoiding enlargement, simple realization, and convenient installation and use
Active Publication Date: 2022-05-31
南京师范大学泰州学院
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Problems solved by technology
[0005] The purpose of the present invention is to provide an electromagnetic quick release device and a circuit breaker to solve the problem of volume in the prior art which causes the narrow gas path of gas blowing arc extinguishing, resulting in low arc extinguishing efficiency and redesigning the structure of the connected conductive circuit Complicated and difficult technical issues
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[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0038] like figure 1 and figure 2 As shown, the present invention provides an electromagnetic quick tripping device. The tripping device in this embodiment specifically uses the electromagnetic principle to cut off the overcurrent, and cutting off the current when the current is too high will easily cause the switch blade to connect to the contact. In this embodiment, during the overcurrent cut-off process, the pressure on the air bag is generated by driving...
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The invention discloses an electromagnetic type quick tripping device and a circuit breaker, which comprises a plurality of electromagnets which are arranged close to a switch tool bit and are distributed in series, and a magnetic correlation assembly arranged between all the electromagnets and the switch tool bit, and an air blowing arc extinguishing assembly is arranged below the magnetic correlation assembly. The air outlet nozzles of the air blowing arc extinguishing assemblies face the switch tool bit. The electromagnet and the switch tool bit are connected to the same power-on circuit in parallel, electromagnetic force generated by the electromagnet attracts the magnetic correlation assembly to move, the switch tool bit is driven by the magnetic correlation assembly to be separated from a main contact of the power-on circuit so as to disconnect the power-on circuit, and the air blowing arc extinguishing assembly is extruded when the magnetic correlation assembly moves. Therefore, a gas outlet pressurization pipeline of the gas blowing arc extinguishing assembly generates compressed gas, and the compressed gas carries out gas blowing arc extinguishing operation on the electric arc between the switch tool bit and the main contact. The whole tripping device with the tripping and arc extinguishing functions is more centralized, and is convenient to install and use.
Description
technical field [0001] The invention relates to the technical field of circuit breakers, in particular to an electromagnetic quick release device and a circuit breaker. Background technique [0002] The tripping device specifically uses the electromagnetic principle to cut off the overcurrent, and cut off the current when the current is too high. Since the arc is mainly generated when the contact disconnects the circuit, the high temperature will burn the contact and insulation, and the existing arc extinguishing work and electromagnetic tripping work are independent operations, for example, during the operation of the electromagnetic tripping, the use of air blowing The arc extinguishing device generates compressed gas to longitudinally blow the connecting contact position to extinguish the arc. [0003] And the defective that also exists in above-mentioned operation is as follows: [0004] The electromagnetic tripping device is often applied to the circuit breaker, but f...
Claims
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Login to View More IPC IPC(8): H01H71/24H01H73/18
CPCH01H71/24H01H73/18
Inventor 窦爱玉王珏孙红艳袁丽丽
Owner 南京师范大学泰州学院