Dual-power electromagnetic head

Abstract

The invention relates to a dual-power electromagnetic head, which comprises coils, a moving iron-core, a static iron-core, a plunger tube and a coil circuit, wherein the coils are round the outside of the plunger tube, the static iron-core is fixedly arranged on the upper part of a tube hole of the plunger tube, the moving iron-core is arranged below the static iron core and is in clearance fit with the pipe hole of the plunger tube, the quantity of the coils is preferably two, and the coils are respectively a holding coil and a starting coil, the winding directions of the starting coil and the holding coil are consistent, the quantity of power supply output ends of a control integration is two, and the power supply output ends of the control integration are respectively connected with a connecting rod of the holding coil and the starting coil, when the valve is started, the two coils are synchronously powered on, and only the holding coil is powered on after the valve is started stably. The dual-power electromagnetic head has the advantages of good safety, little temperature rise and low energy consumption, and is suitable for various kinds electromagnetic valves, especially an electromagnetic valve with high-power and / or large-caliber.

Description

technical field [0001] The invention relates to a dual-power electromagnetic head, especially a new high-performance electromagnetic head with high starting power, energy saving, long life, wide versatility, and convenient use. It can be widely used as driving components for various electromagnetic valves, especially It is used in the drive of energy-saving solenoid valves, large-diameter solenoid valves, and high-pressure solenoid valves. Background technique [0002] The solenoid head is a valve driving device, which can be used as a driving part for various solenoid valves. It is usually mainly composed of a coil, a moving iron core, a static iron core and a magnetic isolation tube. The outer side of the magnetic isolation tube is provided with a support coil. Coil frame, the coil is wound on the coil frame to fix and surround the outside of the magnetic isolation tube, the static iron core is fixedly installed on the upper part of the tube hole of the magnetic isolation ...

AI Technical Summary

Problems solved by technology

[0004] The suction force of the electromagnetic head is inversely proportional to the square of the working air gap, and proportional to the square of the magnetic induction intensity, and the magnetic induction intensity is also proportional to the temperature rise, and the temperature rise is proportional to the time and magnetic induction intensity. The maximum value of the magnetic induction intensity has been finalized, that is, the suction force has been finalized. To make the coil have a large power, it must lead to an increase in the temperature rise of the coil, so the ordinary electromagnetic head has small suction and low power.

[0005] (2) The temperature rises and the safety is poor:

If the coil temperature is high, the coil is prone to short-circuit failure and poor safety

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