What are the winding methods for electromagnetic heater coils?

Issuing time:2024-04-24 21:27

The coil winding method of electromagnetic heaters refers to the technology used to arrange the current of the winding on the coil, which is one of the most important technologies in electromagnetic heater technology. Adopting a reasonable winding method can effectively improve the efficiency of the heater, consolidate the structure of the heater, reduce the volume of the heater, extend the service life of the coil, and improve the reliability of the coil. Below is a detailed analysis of the coil winding method used in electromagnetic heaters, including the characteristics of the coil, the structural form of the coil, and the winding method of the coil.

1、 Characteristics of coils
1. Excellent performance in generating electromagnetic fields: The coil of an electromagnetic heater is the core component that generates electromagnetic fields, and the winding method of the coil determines the final magnetic field characteristics. Therefore, adopting a reasonable winding method can generate excellent electromagnetic fields, meet the electromagnetic field characteristics and intensity required for heating as much as possible, and the efficiency of electromagnetic heating will be much higher.
2. The working temperature of the heater: The winding method of the coil will affect the heat resistance of the heater. Generally, the winding method of multiple strands of wire will increase the insulation temperature, which can increase the working temperature of the heater and thus enhance its capacity.
2、 The structural form of the coil
1. Double winding: Double winding, also known as cross winding, can be arranged left and right according to its different winding methods. There are various types of winding methods, including upper and lower windings, left and right windings, uniformly distributed windings, odd and even windings, etc. Among them, upper and lower windings and odd and even windings are more popular, but the magnetic induction strength of the upper and lower windings is relatively poor, and they are only selected for use in certain special places.
2. Multi strand winding: Multi strand winding is the process of dividing a winding wire into multiple wires, each wire in parallel, and combining different winding methods. Common winding methods include paper strip winding, semi-circular winding, armor winding, conical winding, rectangular winding, etc. This type of winding requires higher electromagnetic induction strength.
3、 The winding method of the coil
1. Cone winding: The winding method of a cone heater is to wind the wires in the coil from one end along a spiral shape to the other end. When wound in a circular ring shape, its external shape and internal magnetic field distribution can be adjusted arbitrarily. At this time, the magnetic field distribution of the heater is relatively average under specific current conditions, making the heating effect more obvious.
2. Rectangular winding: A rectangular winding can be formed by winding the wires in the coil along two thick cables. Rectangular winding is mainly used for thick walled tubular coils, and its efficiency is affected by parameters such as coil wall thickness and magnetic core volume. Only when the magnetic core volume increases and the coil wall thickness decreases, can the magnetic induction intensity be significantly improved.

In summary, the coil winding technology of electromagnetic heaters is the foundation for the implementation of electromagnetic heating technology. Through scientific winding, the efficiency of the heater can be improved, the volume of the heater can be reduced, the service life of the heater can be extended, and the reliability of the heater can be improved. Therefore, when designing electromagnetic heaters, it is necessary to properly consider the factors of coil winding method, scientifically and correctly adopt different winding methods, so as to produce the expected effect and meet the usage requirements.

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