Improved electromagnetic coil of novel assembly structure

Abstract

The invention relates to an improved electromagnetic coil of a novel assembly structure. The improved electromagnetic coil comprises a coil winding unit and a magnetic conductive frame. The coil winding unit comprises a winding, a wire and a layer of insulating resin, wherein the wire is electrically connected with the winding, and the insulating resin covering the winding is used for insulation protection. The coil winding unit and the magnetic conductive frame of the improved electromagnetic coil are fixedly connected in a clamping mode through connecting pieces, which are fixedly connected with each other, to complete mounting, and a fixing piece with a clamping piece is fixedly sealed in the insulating resin on the coil winding unit, and the clamping piece is fixed to a corresponding clamping groove in the magnetic conductive frame after being bent. The improved electromagnetic coil has the advantages that a male fastener is designed on the resin portion of the coil winding unit to be matched with a female fastener on the magnetic conductive frame, or a screw hole is formed in the magnetic conductive frame while a fixing nut is sealed on the resin of the coil winding unit, so that clearance fit between the coil winding unit and the magnetic conductive frame is realized, the resin portion is not easy to scratch during mounting, and convenience and rapidness in mounting are realized; since a lock catch is used for fixing, disassembly and maintenance are facilitated and overall product maintenance cost is reduced.

Description

technical field [0001] This field relates to the field of electromagnetic technology, in particular to an improved electromagnetic coil that can be assembled conveniently and has a more stable fit. Background technique [0002] Electromagnetic coil is a commonly used electrical device in modern industrial electronics technology. It is used in a large amount in industrial production. For various electromagnetic coils that are common at present, the components during assembly mainly include magnetic frame and coil winding unit, coil winding The unit is usually made of windings and wires connected to each other, and a layer of insulating resin for insulation and protection is coated on the outside, and then the coil winding unit and the magnetic frame are installed and fixed. The current common assembly method is to use interference The way of cooperation is to combine the coil winding unit and the magnetic frame with an interference fit. This assembly method requires special a...

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Problems solved by technology

[0002] Electromagnetic coil is a commonly used electrical device in modern industrial electronics technology. It is used in a large amount in industrial production. For various electromagnetic coils that are common at present, the components during assembly mainly include magnetic frame and coil winding unit, coil winding The unit is usually made of windings and wires connected to each other, and a layer of insulating resin for insulation and protection is coated on the outside, and then the coil winding unit and the magnetic frame are installed and fixed. The current common assembly method is to use interference The way of cooperation is to combine the coil winding unit and the magnetic frame with an interference fit. This assembly method requires special attention to the positioning before installation. Not only is it cumbersome to operate, but it is easy to cause the insulating resin to be trapped Scratched or damaged, there are many defects as follows: 1. After the magnetic frame and the resin part are assembled, a certain tensile force must be guaranteed; 2. The pull force of the magnetic frame and the resin part depends on the friction between the two; 3. In order to ensure the friction force, interference fit is required for the cooperation between the magnetic frame and the resin part; 4. The dimensional control accuracy of the magnetic frame and the coil resin part requires high precision; 5. The interference fit makes assembly difficult; 6. The assembly process is easy to scratch Coil insulating resin 7. Insufficient cooperating tension; the existence of the above-mentioned defects causes an increase in manufacturing cost and increases the manufacturing cost of the final product

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