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Energy-saving instantaneous control electromagnetic switch

An electromagnetic switch and excitation technology, which is applied in the direction of electromagnetic relays, electromagnetic relay details, circuits, etc., can solve the problems that the shell cannot be closed and the use occasions are limited, and achieve the effect of broadening the scope of application and saving excitation power

Inactive Publication Date: 2010-03-24
漆辞章
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the inherent defects of the AC contactor, the shell cannot be closed, and its use is also subject to certain restrictions.

Method used

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Embodiment Construction

[0012] figure 1 It is the basic structure and circuit connection diagram of the present invention, and it is also a specific embodiment. Among the figure, the main body shell (2) and the insulating support (1) are made of bakelite. The middle post of E font soft iron core (4) is with excitation coil (5), and two ends A, B of excitation coil (5) are drawn to the outside of the housing and are connected for power supply. The E-shaped permanent magnet core (3) adopts ferrite material to make, and during magnetization, the N pole is on the middle pole, and the S pole is on the poles on both sides. U, V, W three-phase primary bridge plates (17) are fixed on the insulating support (1). The pin (6) is used to connect and fix the E-shaped permanent magnet core (3) and the insulating support (1). The lower hook of the return spring (7) hooks the suspension ring on (1), the upper hook of (7) hangs above the inner wall of the main body shell, and is limited by the baffle plates set on...

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PUM

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Abstract

The invention relates to an instantaneous control electromagnetic switch which can save excitation electric energy. The shape and a main body structure are taken from an alternating current contactor.Compared with the alternating current contactor, the differences are as follows: the instantaneous control electromagnetic switch adopts the combination of an E-shaped permanent magnet core and an E-shaped soft iron core, so as to replace an original silicon iron sheet iron core. An excitation winding is sheathed on the E-shaped soft iron core, direct current with 300V is used for instantaneous excitation, and magnetic force of the permanent magnet core is used for self-locking, thereby maintaining long-term work and particularly saving the excitation electric energy. The instantaneous control electromagnetic switch further utilizes a newly designed special direct current power supply and a power outage impact type release for matching, thereby realizing the power outage release during accidents of a power grid and instantly protecting loads.

Description

Technical field [0001] The invention relates to a switch for controlling power supply to a load. The shape and main structure of this switch are taken from the AC contactor. And when connecting or cutting off the power supply, it has the same characteristics as an AC contactor. Different from the AC contactor, the excitation coil of the present invention does not need to be powered for a long time, which saves the excitation electric energy in particular. When exciting, it only needs to energize the exciting coil for about 0.2 seconds to achieve the control purpose. Moreover, no matter what state the present invention is in, there is no electromagnetic radiation interference at 50 Hz, and there is no annoying mechanical noise at 50 Hz. Background technique [0002] So far, the known AC contactor is still commonly used as a power control switch for three-phase heavy loads. Its main feature is the "snap action" function for frequent actions and remote control. And in case...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01H50/16H01H47/00
Inventor 漆辞章
Owner 漆辞章
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