JPH0555749U - Stator structure - Google Patents

Abstract

(57) [Summary] [Object] The present invention relates to a stator structure, and in particular, is characterized by easily obtaining a slotless type stator by using a winding holder having a dummy structure. [Structure] A stator structure according to the present invention is provided with a winding holder (1) provided inside a cylindrical slotless core (3) and having slots (11) and winding holding protrusions (12) alternately in the circumferential direction. Ten)
And a ring-shaped winding (4) provided on the winding holder (10).

Description

[Detailed description of the device]

[0001]

[Industrial application]

 The present invention relates to a stator structure, and more particularly to a novel improvement for easily obtaining a slotless type stator by using a winding holder having a dummy structure.

[0002]

[Prior Art]

 As a conventional stator structure of this type, as shown in FIG. 3, a jig 2 having a protrusion 1 at the center is generally used, and a cylindrical slot slot is provided around the protrusion 1. After the score 3 was set and the ring-shaped winding 4 of the air core formed in a ring shape was manually inserted between the slot score 3 and the protrusion 1, it was solidified with a mold resin. Therefore, the stator formed as described above is mounted on the slotless motor (not shown).

[0003]

[Problems to be solved by the device]

 Since the conventional stator structure is configured as described above, there are the following problems. That is, since the ring-shaped winding is manually positioned and inserted between the jig and the slotless core, it is difficult to position the ring-shaped winding, which makes the production of the stator extremely difficult.

The present invention has been made to solve the above problems, and in particular, it is an object of the present invention to easily provide a slotless stator structure by using a winding holder having a dummy structure. And

[0005]

[Means for Solving the Problems]

 A stator structure according to the present invention comprises a cylindrical slotless core, a winding holder provided inside the slotless core and having slots and winding-holding protrusions alternately in the circumferential direction, and the winding-holding protrusion. And a ring-shaped winding wound around the portion, and the winding holder is made of a non-magnetic and non-conductive material.

[0006]

[Action]

 In the stator structure according to the present invention, since the winding holder has a non-magnetic and non-conductive structure, the winding holder is formed on each winding holding protrusion by an automatic winding machine. By providing as a dummy inside the slotless core, a highly accurate stator structure can be obtained very easily.

[0007]

【Example】

 Hereinafter, preferred embodiments of a stator structure according to the present invention will be described in detail with reference to the drawings. It should be noted that the same or equivalent portions as those of the conventional example will be described by attaching the same reference numerals. 1 and 2 show a stator structure according to the present invention. FIG. 1 is a perspective view showing a winding holder, and FIG. 2 is a sectional view showing a slotless motor.

A reference numeral 10 in FIG. 1 is a winding holder having a tubular shape as a whole and having slots 11 and winding-holding projections 12 alternately and integrally formed in a circumferential direction thereof. The ring-shaped winding 4 is wound around the winding holding projection 12 by an automatic machine (not shown).

A hole 14 is formed in the axial center of the winding holder 10 for positioning a rotor 13, which will be described later. The winding holder 10 is subjected to required inner and outer diameter machining, After checking the dimensions, it is mounted inside the cylindrical slotless core 3 shown in FIG.

The slotless core 3 is held by a front lid 15 and a rear lid 16 that pivotally support the rotor 13, and constitutes a slotless motor 20 with the structure shown in FIG.

[0011]

[Effect of the device]

 Since the stator structure according to the present invention is configured as described above, the following effects can be obtained. That is, since the winding holder having the winding is provided as a dummy in the slotless core, the winding can be applied by an automatic winding machine, and the efficiency of assembly can be greatly improved.

[Brief description of drawings]

FIG. 1 is a perspective view showing a main part of a stator structure according to the present invention.

FIG. 2 is a sectional view of a slotless motor.

FIG. 3 is a cross-sectional view showing a conventional stator structure and a manufacturing method thereof.

[Explanation of symbols]

 3 slotless core 4 ring-shaped winding 10 winding holder 11 slot 12 winding holding protrusion

Claims (1)

[Scope of utility model registration request] 1. A slotless core (3) having a cylindrical shape, and a slot (11) provided inside the slotless core (3).
And a winding holding body (10) having alternating winding holding protrusions (12) in the circumferential direction, and a ring-shaped winding wound around the winding holding protrusion (12).
(4), The stator structure, wherein the winding holder (10) is made of a non-magnetic and non-conductive material.