Efficient starting motor capable of being rapidly dipped in paint

Abstract

An efficient starting motor capable of being rapidly dipped in paint comprises an armature iron core and an armature coil; a plurality of wiring grooves are formed in the armature iron core in the circumferential direction, the armature coil is in a U shape, straight line parts at the two ends of the armature coil are arranged in the two wiring grooves respectively, and the central angle of the armature iron core corresponding to the two wiring grooves ranges from 85 degrees to 95 degrees. Insulating paper is arranged between the armature coil and the wiring groove, the insulating paper is ina C shape, an opening of the C-shaped insulating paper faces the opening side of the wiring groove, and a gap between the insulating paper and the armature coil is filled with insulating paint. The invention has the beneficial effects that the insulating paper is molded into a C shape, so that the filling rate of the insulating paint can be up to 90% within 5-8 seconds, the filling density of theinsulating paint is uniform in the whole period, the torque is improved to a certain extent under the condition that the power of the starting motor is not changed, and the starting performance of thestarting motor is also improved.

Description

technical field [0001] The present invention relates to a starter motor, and more particularly, the present invention relates to a starter motor for a heavy-duty vehicle diesel engine. Background technique [0002] Diesel engines are widely used in heavy-duty vehicles due to their large torque and good economic performance. However, since the viscosity of diesel is higher than that of gasoline, it is not easy to evaporate, so that it cannot be ignited by electric spark, but can only be ignited by cylinder. Therefore, when starting a diesel engine, the starter motor needs to have a strong starting torque. At present, the commonly used method is to install a deceleration mechanism during the power output process of the starter motor to increase the torque, which requires the starter motor to have a higher speed, and the speed of the commonly used starter motor is about 30000rpm. As an important part of the engine, the starter motor is required to have good starting performanc...

AI Technical Summary

Problems solved by technology

[0003] The starter motor in the prior art such as Image 6 As shown, since the insulating paper set between the armature coil and the wiring groove is in the shape of an "S", the wires of the armature coil are wrapped in the middle, and the "S"-shaped insulating paper blocks the opening of the wiring groove, and the insulating paint can only Penetrating from both ends to the middle, the process is long, so that the starter motor needs a long time for varnish immersion in the process of varnish immersion, usually more than 1 minute, and the filling rate of insulating varnish can only reach about 70% at most (because After the insulating varnish at both ends solidifies, it will prevent the subsequent insulating varnish from penetrating into the middle), and the density of insulating varnish perfusion is high at both ends and low in the middle, so the production efficiency is low, the manufacturing cost is high, and the reliability of the armature coil is low

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