CN2704960Y

CN2704960Y - Miniature permanent magnetic DC motor armature

Info

Publication number: CN2704960Y
Application number: CN 200420034048
Authority: CN
Inventors: 付孜隽; 王永江
Original assignee: Individual
Current assignee: Individual
Priority date: 2004-06-14
Filing date: 2004-06-14
Publication date: 2005-06-15
Anticipated expiration: 2014-06-14

Abstract

The utility model discloses a miniature permanent magnetic DC motor armature, which comprises an axis, an armature core, a reverser and enamelled copper wires. The enamelled copper wires are winded in the iron core groove of the armature core, and the two ends of the winding surface enamelled copper wires are sheathed with alkyd glass paint pipes. The utility model can embed the winding surface wires into the iron core groove after being sheathed with alkyd glass paint pipes. The surface wires can be clamped tightly into the iron core groove and doesn't spring back above the notch because of the favorable flexibility and elasticity of the glass paint pipe. Simultaneously, the utility model need not increase special equipment and tooling and working procedures, and besides, the miniature permanent magnetic DC motor armature has the advantages of simple operation, higher production efficiency, lower production costs, good structure technology and stable quality.

Description

The miniature magnetic DC motor armature

Technical field

The utility model relates to the improvement technology of motorcycle starting motor armature, is specifically related to the miniature magnetic DC motor armature.

Background technology

Armature is the core component of actuating motor, generally is made up of iron core and winding.As the armature of CBT125 motorcycle starting motor for φ 1.7mm or φ 1.9mm enamel insulated round copper wire directly on armature core coiling form.Armature core is 21 grooves, and winding configuration is single wave winding, 4 utmost points, and the number of turn of every coil is 2 circles, several 4 of every line of rabbet joint.Compare with the armature of other general motorcycle starting motor, the characteristics of this winding are that lead is thick, the copper factor height, so when coiling lead resilience big, be difficult in place.And because the size of armature core is less, the angle of lead bending is big in the winding process, adds the copper factor height, so that the lead of winding surface layer very easily ejects iron core notch and is higher than surface unshakable in one's determination.

For the surface layer lead that prevents winding ejects iron core notch, often adopt following two kinds of methods at present in the manufacturing industry.First method is the diameter that suitably reduces lead, and coiling is become easily, but can reduce the energy index of motor like this.Second method is after coiling is finished, and the surface layer lead is under impaction state, and the tooth top portion with special equipment and frock punching press iron core notch both sides utilizes the distortion of tooth top portion that the notch that is subjected to towards the position is narrowed down, with the surface layer lead fixed, and unlikely ejection iron core notch.This method one need increase special equipment, and special tooling and operation have improved manufacturing cost.Its two armature carries out this kind again and is subjected to the bigger machining of active force after coiling, might make the insulation overlay in the core slots produce the crack, even damages or the insulation paint film on enamelled wire surface is damaged, thereby influences the reliability of its insulation.

Summary of the invention

Deficiency at above-mentioned prior art existence, the purpose of this utility model provides a kind of energy index that does not reduce motor, need not increase special equipment, special tooling and operation and can prevent that the surface layer lead of winding from ejecting the miniature magnetic DC motor armature winding structure of iron core notch.

The purpose of this utility model is achieved in that the miniature magnetic DC motor armature, comprises axle, armature core, commutator and enamel covered wire, and enamel covered wire is wound in the iron core slot of armature core, and winding surface layer enamel covered wire is with alkyd glass lacquer pipe.

Especially winding surface layer enamel covered wire two ends partly are with alkyd glass lacquer pipe.

The utility model puts alkyd glass lacquer Guan Houzai with the part of winding surface layer lead and embeds in the core slots, because glass lacquer pipe has good pliability and elasticity, can be with in the surface layer lead card entry slot tightly, and can resilience and exceed notch.Simultaneously, the utility model does not need to increase special equipment and frock, does not increase operation, operates simple and easyly, enhances productivity, reduce production costs, and the product percent of pass height, processability of product structure is good, and steady quality is reliable.

Description of drawings

Fig. 1 is a structural representation of the present utility model.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is another execution mode structural representation of the utility model.

Embodiment

As Fig. 1, Fig. 2 and shown in Figure 3, the utility model one execution mode: miniature magnetic DC motor armature, comprise axle 1, armature core 3, commutator 4 and copper cash 5, embed in the iron core slot again after the two ends of winding surface layer lead are partly put alkyd glass lacquer pipe 2, because glass lacquer pipe has good pliability and elasticity, can can resilience not exceed notch with in the surface layer lead card entry slot tightly; Partly do not overlap alkyd glass lacquer pipe in the middle of the winding surface layer lead, conveniently drip the lacquer infiltration so that leave the gap.And alkyd glass lacquer pipe has higher thermal endurance, mechanical strength and dielectric strength, and price is lower simultaneously, is a kind of insulating sleeve of widespread usage in the electrical equipment and electrical manufacturing industry.This sleeve pipe has good suction lacquer property and adhesiveness, so armature winding is after dripping the lacquer cured, it inhales lacquer bonding full and unshakable in one's determination firmly, lead, sleeve pipe and three unshakable in one's determination rely on the bonding of paint film to become a solid integral body, have improved mechanical strength, insulation property and the reliability of armature winding greatly.Simultaneously, the utility model does not need to increase special equipment and frock, does not increase operation, operates simple and easyly, enhances productivity, reduce production costs, and the product percent of pass height, processability of product structure is good, and steady quality is reliable.

As shown in Figure 4, if the part integral body of winding surface layer lead is put in the alkyd glass lacquer Guan Houzai embedding iron core slot,, can resilience not exceed notch with in the surface layer lead card entry slot tightly because glass lacquer pipe has good pliability and elasticity; But winding surface layer lead and iron core slot almost do not have the gap, drip the lacquer osmotic effect not as the former.For improving mechanical strength, insulation property and the reliability of armature winding, it is better to adopt two ends partly to overlap alkyd glass lacquer pipe.

Claims

1, miniature magnetic DC motor armature, comprise axle (1), armature core (3), commutator (4) and enamel covered wire (5), enamel covered wire (5) is wound in the iron core slot of armature core (3), it is characterized in that winding surface layer enamel covered wire (5) is with alkyd glass lacquer pipe (2).

2, DC motor armature according to claim 1 is characterized in that described winding surface layer enamel covered wire (5) two ends partly are with alkyd glass lacquer pipe (2).