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Double-power supply change-over switch having double-breakpoint moving contact structure

A technology of dual power conversion and transfer switch, applied in the direction of contact drive mechanism, contact electrical connection, etc., can solve the problems of difficult design and achieve the effects of improving stability and reliability, improving product quality, and reducing volume

Active Publication Date: 2016-06-08
GUIZHOU TAIYONG CHANGZHENG TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, it is very difficult to design to ensure the contact synchronization when the contacts at both ends are opened and closed, and to ensure sufficient contact pressure, which is why this type of product has not been widely used.

Method used

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  • Double-power supply change-over switch having double-breakpoint moving contact structure
  • Double-power supply change-over switch having double-breakpoint moving contact structure
  • Double-power supply change-over switch having double-breakpoint moving contact structure

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Experimental program
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Embodiment Construction

[0019] The present invention will be described in detail below in conjunction with the accompanying drawings.

[0020] Such as figure 1 As shown, a dual-power transfer switch with a double-break point moving contact structure is mainly used in PC-level power automatic transfer switch appliances that require high breaking capacity. The transfer switch includes a drive control part 1 and a main switch Part 2. The main body switch part 2 is fixed between the drive control part 1 and the bracket 4 through the driving square shaft 3 and the stud. The dual power switch is powered by the drive control part 1, and drives the main switch part 2 to close and open through the drive square shaft 3.

[0021] Such as figure 2 , image 3 As shown, the main body switch part 2 is composed of the first pole, the second pole, the third pole and the N pole. The structure of the first three poles is exactly the same, and the structure of the N pole can be changed as required. The internal st...

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PUM

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Abstract

The invention relates to a double-power supply change-over switch having a double-breakpoint moving contact structure. The change-over switch comprises a drive control part and a main body switch part. The main body switch part is fixed between the drive control part and a support through a drive square shaft and a stud. The drive control part provides power to the double-power supply change-over switch, and the square shaft drives the main body switch part to be switched on and switched off. The main body switch part is composed of four poles, the first three poles are completely identical in structure, and the N pole can change the structure according to needs. The inner structure of each pole comprises an insulation housing, an arc-extinguishing shield, a load wiring board, a double-breakpoint moving contact component, and A, B power supply wiring boards. The double-breakpoint moving contact component is the core of the double-power supply change-over switch. According to the invention, the change-over switch is obtained by great improvement based on the prior art by technical personnel, and has advantages that the synchronism of switching-on and switching-off is high, the size is reduced, the stability and the reliability of the switch are improved substantially, and the product quality of the whole machine is improved greatly.

Description

technical field [0001] The invention belongs to the field of electromechanical technology, and in particular relates to a dual-power conversion switch with a double-break point movable contact structure. Background technique [0002] At present, the dual power transfer switch widely used in the power supply and distribution system usually adopts a single-contact contact structure, and its conduction mode is a single-contact clapping contact. If the time is long, the contacts are easy to burn out, and it is difficult to improve the breaking capacity. The two-way power supply needs to use two sets of movable contacts, and the two drive shafts are driven separately. The structure is more complicated, the volume is larger, and the production cost is also higher. [0003] Theoretically, the double-break point contact structure can improve the breaking capacity of the dual power transfer switch, provided that the contact synchronization is good enough when the contacts at both en...

Claims

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Application Information

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IPC IPC(8): H01H1/58H01H3/32
CPCH01H1/58H01H3/32
Inventor 黄正乾董天亮
Owner GUIZHOU TAIYONG CHANGZHENG TECH CO LTD