Integrated insulation connection structure of electromagnet and vacuum arc-extinguishing chamber
A vacuum interrupter and connection structure technology, applied in circuits, electrical switches, electrical components, etc., can solve problems such as affecting the use of switches, control circuit interference, affecting control circuit work, etc., to reduce the probability of damage and improve stability. Effect
Inactive Publication Date: 2013-09-18
TIANJIN HUANING ELECTRONICS
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Problems solved by technology
When the electromagnet is closed, the moving contact of the vacuum interrupter is closed, and the electromagnet is also charged with strong electricity. Although some insulation and isolation measures are taken for the coil in the electromagnet, the coil breakdown occurs from time to time, resulting in Damage to the contactor or isolating switch in the switch affects the use of the switch
[0003] On the other hand, in the switch, the electromagnet is connected to the control circuit, and the vacuum interrupter is connected to the main circuit. If the electromagnet is directly connected to the vacuum interrupter, the main circuit will interfere with the control circuit and affect the control circuit. work, this phenomenon is especially obvious in the frequency conversion switch
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[0009] The present invention will be described in further detail below in conjunction with the accompanying drawings and specific embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, and are not intended to limit the present invention.
[0010] Such as figure 1 As shown, the electromagnet is connected to the vacuum interrupter through an insulating helical sleeve 1 , an external thread 2 is provided on the outer periphery of the main shaft of the insulating helical sleeve, and a screw hole 3 is provided on the main shaft of the insulating helical sleeve.
[0011] When assembling, first screw the main shaft of the insulating screw sleeve into the screw hole at one end of the moving contact of the vacuum interrupter, and then screw the screw shaft in the electromagnet into the screw hole of the main shaft of the insulating screw sleeve. The insulation connection between the electromagnet and the vacuum...
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The invention discloses an integrated insulation connection structure of an electromagnet and a vacuum arc-extinguishing chamber. The integrated insulation connection structure disclosed by the invention comprises the electromagnet and the vacuum arc-extinguishing chamber, wherein the electromagnet and the vacuum arc-extinguishing chamber are connected through an insulating spiral sleeve; an outer thread is arranged on the periphery of a main shaft of the insulating spiral sleeve; and a screw hole is arranged on the main shaft of the insulating spiral sleeve. According to the integrated insulation connection structure disclosed by the invention, electric isolation is realized on a connection part of the electromagnet and the vacuum arc-extinguishing chamber, so that an electromagnet coil is effectively protected, and the possibility of damaging the electromagnet is reduced. Furthermore, the crosstalk to a control circuit by a main circuit in the electromagnet and a vacuum pipe assembly is greatly eliminated, and the safety of mineral switching equipment is improved.
Description
technical field [0001] The present invention relates to an insulating connection structure, and more specifically relates to a connection structure for electrically isolating an electromagnet and a vacuum interrupter in a combined mine switch (including a frequency conversion switch). Background technique [0002] In the mine explosion-proof and intrinsically safe combination switch (hereinafter referred to as the switch), the closing and opening of the moving contacts of the vacuum interrupter are driven by the electromagnet, and the pull-in and release of the electromagnet is driven by the built-in switch. Coil control, most of the current structures are directly connected to the electromagnet and the vacuum interrupter, and there is an equipotential body between the two. When the electromagnet is closed, the moving contact of the vacuum interrupter is closed, and the electromagnet is also charged with strong electricity. Although some insulation and isolation measures are...
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IPC IPC(8): H01H33/66
Inventor 杜云岗吕学海张志强肖丽丽
Owner TIANJIN HUANING ELECTRONICS