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The working principle and performance of electromagnet
Release time:
2022-04-20
Source:
Www.fe2100.com Hunan Yongyi Technology Co., Ltd.
Electromagnet is an active part that converts electrical energy into magnetic energy and further into mechanical energy. When using an electromagnet, the temperature rise of the coil will lead to a decrease in the output capacity, so the heat factor must be considered. The heat dissipation capacity of the electromagnet is related to the volume and structure
The working principle of electromagnet:
When the coil is energized, the core and the armature are magnetized and become two magnets with opposite polarities, which produce electromagnetic attraction. When the suction force is greater than the reaction of the spring, the armature begins to move in the direction of the core. When the current in the coil is less than a certain value or the power supply is interrupted, the electromagnetic attraction is less than the reaction force of the spring, and the armature will return to the original release position under the action of the reaction force. An electrical appliance that uses the electromagnetic attraction generated by the current-carrying core coil to operate a mechanical device to complete the expected action. It is an electromagnetic element that converts electrical energy into mechanical energy.
The electromagnet is mainly composed of three parts: coil, iron core and armature. The iron core and armature are generally made of soft magnetic materials. The core is generally stationary and the coil is always mounted on the core. The armature of the electromagnet of the switching electrical appliance is also equipped with a spring.
the performance of the electromagnet:
Electromagnet is an active part that converts electrical energy into magnetic energy and further into mechanical energy. When using an electromagnet, the temperature rise of the coil will lead to a decrease in the output capacity, so the heat factor must be considered. The heat dissipation capacity of the electromagnet is related to the volume and structure. The solenoid size and winding specifications that generate the required starting torque/force can be selected under the conditions of a given stroke, known power-on and power-off time, and power supply. Ambient temperature, voltage fluctuation, return spring and temperature rise will affect the output torque/force. It is recommended to use a safety factor of 1.5 times for these parameters when selecting.
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