KR19980015094A

KR19980015094A - Starter motor rotor

Info

Publication number: KR19980015094A
Application number: KR1019960034320A
Authority: KR
Inventors: 김문섭
Original assignee: 오상수; 만도기계 주식회사
Priority date: 1996-08-20
Filing date: 1996-08-20
Publication date: 1998-05-25
Also published as: JPH10153158A; CN1176516A; JP3165400B2

Abstract

The present invention provides a starter motor rotor in which a coil inserted into a core of an armature and an armature of an armature of a rotor can be prevented from being opened or released by the centrifugal force of the rotor .

1. A starter motor comprising a stator and a rotor and in which an armature core and a commutator are inserted into a shaft of the rotor, 4 and the commutator 5 of the commutator 5 so that the coil 8 inserted into the riser portion 6 of the commutator 5 can be fixed to the outer circumference of the lyer portion 6 and the coil 8 of the rotor 2, The resin 9 is applied to form a glass ring which is applied to the outer circumferential surface of the rotor 2 with a predetermined width and thickness.

Description

Starter motor rotor

1 is a half sectional view of a conventional starter motor rotor,

2 is a half sectional view showing the structure of a ring assembled in a conventional rotor,

3 is an exemplary view showing a manufacturing process of the starter motor rotor of the present invention,

Explanation of symbols for important parts of the drawings

2. Rotor

3. Shaft 4. Armature iron core

5. Commutators 6. Lizabu

7. Ring 8. Kyle

9. Glass fiber-based resin 10a, 10b. Vessel

The present invention relates to a starter motor rotor, in particular, to provide a starter motor rotor in which a coil inserted into an iron core and an armature of an armature can be prevented from being opened or released by the centrifugal force of the rotor.

1, the armature core 4 and the commutator 5 are press-fitted into the shaft 3 of the rotor 2, and the armature core 4 and the armature core 4 are inserted into the shaft 3 of the rotor 2, A ring 7 for fixing the coil 8 to the riser portion 6 of the commutator 5 is assembled to prevent the coil 8 from being detached by centrifugal force when the rotor 2 is rotated.

In order to prevent the coil 8 wound on the rotor from being separated by the centrifugal force during the rotation of the rotor 2, a ring (not shown) is mounted on the outer circumferential surface of the rotor 2, 7 and then the varnish is applied to fix the ring 7 so that the coil 8 is prevented from being opened or released.

However, conventionally, after manufacturing the ring 7 of a certain size at the time of manufacturing the rotor 2, the ring 7 is inserted into the riser portion 6 of the commutator 5, Since the coil 8 supports and fixes the coil 8, there is a problem that the ring 7, which fixes the keel 8 during the coating operation, deviates from the next process due to shaking due to disengagement and flow.

Further, the ring (7) seeks an assembly method in which the coil (8) is wound on the rotor (2), then is fitted to one side of the rotor and surrounds and fixes the outer circumferential surface of the coil (8) There is a problem that the coating of the coil 8 is peeled off upon contact with the coil 7.

The ring 7 for fixing the coil 8 is formed in the same shape as a ring cut by a predetermined length so that a separate ring 7 is required to be manufactured and machined.

Such a conventional problem has been caused by assembling a separate fastener such as a separate ring on the outer circumferential surface of the rotor to prevent the coil from being opened or dislocated by the centrifugal force during rotation of the rotor.

Therefore, in the present invention, a coil is fixed by a method of directly applying a glass fiber-based resin in a molten state to the outer circumferential surface of a rotor instead of a ring to prevent the coil from coming off, thereby assembling a fixture such as a separate ring And it will be described in more detail with reference to the accompanying drawings.

FIG. 3 shows an example of a manufacturing process of a starter motor rotor according to the present invention. FIG. 3 shows a manufacturing process of a starter motor rotor according to the present invention. In which the armature 4 of the rotor and the coil 8 inserted into the riser portion 6 of the commutator 5 are fixed so that the rotor 8 and the armature 4 of the commutator 5, A glass fiber resin 9 in a molten state is directly injected into the outer periphery of the lyer portion 6 and the coil 8 of the rotor 2 to form a glass ring which is coated on the outer circumferential surface of the rotor 2 with a certain width and thickness And the like.

The present invention constructed as described above is characterized in that both ends of the rotor 2 are rotatably supported and the containers 10a and 10b in which molten glass fiber resin 9 is contained at both ends of the rotor 2, The glass fiber-based resin 9 is arranged so as to be applied to the outer circumferential surface of the rotor 2. The glass fiber-

Then, when the rotor 2 is slowly rotated so that the glass fiber-based resin 9 can be uniformly coated on the outer circumferential surface of the rotor 2, a glass fiber-based resin The glass fiber based resin 9 which is applied to the outer circumferential surface of the rotor 2 and solidified at room temperature has a shape similar to that of a ring so that a separate glass fiber system is assembled to the rotor 2 The same effect can be obtained.

Since the glass fiber based resin 9 applied to the outer circumferential surface of the rotor 2 is in a molten state, the molten glass is impregnated between the coils 8 and the coils 8 and between the coils 8 and the riser portions 6, And the coil 8 and the riser portion 6 are firmly fixed as the resin in the state is gradually solidified.

As described above, according to the present invention, in forming the rotor for the starting motor, the armature iron core, the commutator and the coil are inserted, and the glass fiber-based resin in a melted state is directly applied to the separation preventing portion of the coil in the process before the application of the varnish as a whole The glass fiber based resin is advantageous in that the coils, the coils, the coils and the lyso parts are firmly fixed and the fixing work is easily performed.

In addition, since the glass fiber-based resin itself solidified by coating on the outer circumferential surface of the rotor forms a ring, it is possible to ideally prevent the coil from being separated from the coil, so that a separately manufactured ring is fitted on the outer circumferential surface of the rotor, There is no hassle or inconvenience.

Claims

A starter motor comprising a stator and a rotor (2), wherein an armature core (4) and a commutator (5) are inserted into a shaft (3) of the rotor (2) And the coil 8 inserted into the riser portion 6 of the commutator 5 so as to have a constant width and thickness in the circumferences of the riser portion 6 and the coil 8 of the rotor 2, Of glass fiber-based resin (9) is injected to form a glass ring.