Monostable permanent magnet control mechanism with multiple force output air gaps

A permanent magnet operation, monostable technology, applied in electrical components, high-voltage air circuit breakers, power devices inside switches, etc., can solve the problem of large non-working air gap, large operating mechanism and low magnetic flux utilization. and other problems, to achieve the effect of reducing magnetic flux leakage, optimizing volume, and high reliability

Inactive Publication Date: 2008-12-10
BEIHANG UNIV +1
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007]In order to solve the defects of the existing permanent magnet operating mechanism, such as large non-working air gap, low magnetic flux utilization rate, and large volume of the operating mechanism

Method used

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  • Monostable permanent magnet control mechanism with multiple force output air gaps
  • Monostable permanent magnet control mechanism with multiple force output air gaps
  • Monostable permanent magnet control mechanism with multiple force output air gaps

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Embodiment Construction

[0055] The present invention will be further described in detail below in conjunction with the accompanying drawings.

[0056] see figure 1 , as shown in Figure 2, the present invention is a monostable permanent magnet operating mechanism with multiple output air gaps, which is suitable for the field of medium and low voltage electrical switches, can quickly realize the opening and closing action, and has a multi-output air gap. The magnetic operating mechanism includes a moving iron core 1, a static iron core 2, an opening and closing coil 3, an opening spring 4, a transmission rod 5, an A permanent magnet 8, a B permanent magnet 9, and a connecting plate 6. The moving iron core 1 and the static iron core 2 are placed opposite each other, and there are A air gap 101, B air gap 102, and C air gap 103 between the moving iron core 1 and the static iron core 2; the opening and closing coil 3 is set on the lower center column of the static iron core 2 22b, the opening and closing...

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Abstract

The invention provides a multi-strength gap monostable permanent magnet driven mechanism. A permanent magnet of the driven mechanism is mounted between a fourth silicon-steel sheet group and a third silicon-steel sheet group of a fixed core, while B permanent magnet is mounted between the third silicon-steel sheet group and a second silicon-steel sheet group of the fixed core. Lower end surface of the fixed core is mounted on a connection board. The fixed core is put relatively to a moving core, and an on and off coil is sleeved on a lower central post of the fixed core. An on and off spring, which is sleeved on upper central post of the moving core, is located above the on and off coil. Upper end of a transmission rod orderly runs through a central hole of the connection board, a second central through hole of the fixed core and a first central through hole of the moving core, then runs through A pin hole, B pin hole, D pin hole and C pin hole by pins, and connection with one end of the transmission rod by the moving core is implemented. The multi-strength gap monostable permanent magnet driven mechanism of the invention is able to coordinate with power electronic device to perform millisecond movement, meet disconnection time demand of mechanical contact and implement quick on and off movement of an operation mechanism.

Description

technical field [0001] The invention relates to a permanent magnet operating mechanism, more particularly, to a monostable permanent magnet operating mechanism with multiple output force air gaps. Background technique [0002] Electrical switches (such as circuit breakers, contactors, etc.) generally mainly include arc extinguishing chambers and operating mechanisms. According to different working principles, the operating mechanism can be divided into electromagnetic operating mechanism, permanent magnet operating mechanism and spring operating mechanism. Among them, the permanent magnet operating mechanism includes a bistable permanent magnet operating mechanism and a monostable permanent magnet operating mechanism. [0003] In the patent application number 02145538.4, the application date was December 18, 2002, and the publication number CN1206687C discloses "a kind of permanent magnet operating mechanism". The permanent magnet operating mechanism includes a transmissio...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H3/28H01H33/38H01H33/666
Inventor 武建文秦晨冯英张路明
Owner BEIHANG UNIV
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