Swing type double holding electromagnet

Abstract

The invention discloses an oscillating double-hold electromagnet which comprises a shell, a cover plate, an iron core, a framework and an oscillating bar component. The shell and the cover plate are fixedly connected and enclose to form a chamber embedded with the iron core, the framework and the oscillating bar component, the framework is wound with an electric wire on the periphery to form an electromagnetic coil, and the iron core is arranged in a centre through hole of the electromagnetic coil and moves between two limiting positions of the oscillating bar component; the oscillating bar component is abutted between the shell and the cover plate respectively, a permanent magnet block set capable of generating a permanent magnet magnetic field is arranged at the bottom end of the oscillating bar component, a magnetic field of the electromagnetic coil is opposite to the magnetic field of the permanent magnet block set in magnetic field direction. High magnetic field intensity can be obtained through the electromagnetic coil, so that large driving force can be achieved; the iron core can be held at the two limiting positions under the action of the permanent magnetic field, and the iron core can be held at the limiting positions with sufficient maintaining force without electric energy. The oscillating double-hold electromagnetic has the advantages that the defect in an existing structure can be effectively avoided by the electromagnetic, and is small in size, reliable in operation, high in operation efficiency and the like.

Description

technical field [0001] The invention relates to the field of electrical components, in particular to a swing-type double-holding electromagnet. Background technique [0002] An electromagnet is an electrical component that can convert electromagnetic energy into mechanical energy. Its working principle is: when the current passes through the wire, a magnetic field will be generated around the wire, and when the current passes through the solenoid, it will be controlled within the solenoid. into a uniform magnetic field. The electromagnet is a very important electrical component, which is widely used in the automation control system, and its main function is to control the switch of the circuit. [0003] The electromagnets commonly used in the market generally have two limit positions. One limit position is held by a spring, which has problems such as small holding force and poor stability; the other limit position is held by the electromagnetic coil for a long time. Mainta...

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Problems solved by technology

[0003] The electromagnets commonly used in the market generally have two limit positions. One limit position is held by a spring, which has problems such as small holding force and poor stability; the other limit position is held by the electromagnetic coil for a long time. Maintenance, this maintenance method has problems such as heat generation and high energy consumption

In addition, the electromagnet also has the defect that it cannot be driven by high power.

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