Solenoid

Abstract

The invention relates to a solenoid and relates to the field of ignition coils, the solenoid comprises a metal sleeve, one end of the metal sleeve is opened to form a mounting opening; a cylinder framework is inserted into the metal sleeve, a coil is wound on the peripheral side of the cylinder framework, a conductive terminal is arranged at one end of the cylinder framework and electrically connected with the coil, a plurality of inserting grooves are formed in the end, close to the conductive terminal, of the cylinder framework, and a plurality of protruding parts matched with the insertinggrooves in an inserted mode are arranged on the inner wall of the metal sleeve. Aiming at the problem that the position of a cylinder framework in a metal sleeve deviates when epoxy resin potting is carried out on an existing solenoid, the solenoid has the effects that the position of the cylinder framework in the metal sleeve is stable, and position deviation is not likely to happen, meanwhile, the coaxiality of the cylinder framework and the metal sleeve can be improved, and the quality of the solenoid is improved.

Description

technical field [0001] The invention relates to the field of ignition coils, in particular to a solenoid. Background technique [0002] The ignition coil is an induction coil that generates high-voltage electricity. The high-voltage electricity generated by the ignition coil of an automobile engine is above 35KV. Therefore, ensuring the insulation strength of the ignition coil is the key to improving product quality, enhancing reliability and prolonging service life. The existing The insulation processing method is to carry out epoxy resin potting on the ignition coil in the later stage. [0003] An existing ignition coil, refer to figure 1 , including a columnar frame 01 and a top plate 02 and a bottom end plate 03 respectively fixed at both ends of the columnar frame 01, the central positions of the columnar frame 01, the top plate 02 and the bottom end plate 03 are provided with a central through hole 04; the columnar frame 01, The top plate 02 and the bottom end plate ...

AI Technical Summary

Problems solved by technology

[0004] The above existing technical solutions have the following defects: when the ignition coil is potted, epoxy resin is poured into the potting hole on the technical shell, enters the column skeleton area through the potting guide groove, and is coated on the coil , during the potting process, the epoxy resin flow will continue to impact the top plate, which will easily lead to a certain degree of inclination of the top plate, column frame and bottom end plate with the connection line of the two clips as the axis. Tilting will change the space structure in the metal shell, which is not conducive to the coating of epoxy resin, and will also affect the later use of the ignition coil, which needs to be improved

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