Efficient energy-saving electromagnet

Abstract

The invention discloses an efficient energy-saving electromagnet. The efficient energy-saving electromagnet comprises a conventional alternating-current electromagnet composed of a movable iron core, a static iron core, a reset spring and a excitation coil and an electronic unit, wherein the electronic unit is composed of a DC power circuit, a control pulse generation circuit, a switch circuit, a boosting circuit, a pressure division circuit, a bridge circuit, a switch k and a common end E.

Description

technical field [0001] The invention relates to the field of low-voltage electrical appliances, in particular to a high-efficiency and power-saving electromagnet that adopts a booster circuit and can efficiently save power. Background technique [0002] AC electromagnet is a low-voltage electrical appliance that is widely used. For example, AC electromagnetic contactors, AC electromagnetic valves, AC electromagnetic tractors, AC electromagnetic clutches, AC electromagnetic brakes, AC electromagnetic chucks, AC electromagnetic cranes, AC electromagnetic locks, AC electromagnetic punches, AC magnetic levitation trains and other equipment are equipped with AC electromagnets. . [0003] figure 1 It is a schematic diagram of the working principle of a conventional AC electromagnet. This conventional AC electromagnet is mainly composed of a moving iron core M, a static iron core G, a return spring F, and an excitation coil L. When the terminals A1 and A2 of the excitation coil...

AI Technical Summary

Problems solved by technology

[0010] 1. Unnecessary power consumption: As mentioned above, in the start-up and holding stages, the same AC voltage is passed through the excitation coil L of the conventional AC electromagnet, resulting in excessive holding power and unnecessary power loss;

[0011] 2. Heating: The evil result of unnecessary power loss is heating and heating. In severe cases, it will even burn the excitation coil L of the conventional AC electromagnet;

[0012] 3. Annoying AC noise

[0013] 4. After the AC voltage is turned on, the magnetic force generated by the exciting coil L is not strong enough, and the speed of the moving iron core M and the static iron core G is relatively slow.

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