JPS622825A - Rotary motor - Google Patents

Abstract

PURPOSE:To decrease the manhours required for assembling coils and cores by making a stator magnetic core in split construction and at the same time forming the yoke with tubulous steel. CONSTITUTION:In a stator magnetic core 14 the teeth and magnetic poles are punched integrally and laminated one upon another. A coil 5 is provided to the teeth of the stator magnetic core 14 with intermediary of insulating parts 11 and 12. At the center of the stator magnetic core 14, a rotor magnet 10 is positioned for free rotation which is fixed to an axis 3 unitarily. A yoke 6 is made up of the tubulous steel and magnetically connected to the stator magnetic core 14 serving as an outer frame of a motor at the same time. The axis 3 is supported by the yoke 6 through roller bearings 2 and 8. In this way, the manhours required for assembling coils and cores can be decreased and at the same time the quality of a rotary motor is improved.

Description

[Detailed description of the invention] Industrial applications The present invention relates to a rotating electric motor.

BACKGROUND OF THE INVENTION In recent years, the shape and dimensions of electric motors have been determined according to the structure and function of the equipment to which they are attached, and elongated electric motors have come to be used depending on the purpose. An example of the conventional rotary electric motor mentioned above will be described below with reference to the drawings. FIG. 3 and FIG. 4 show the structure of a conventional rotary electric motor and the configuration of the iron core reference wire. FIG. 4 shows a cross section taken along line 8-A' in FIG. In FIG. 3, reference numeral 28 denotes a stator magnetic core, in which a yoke portion, teeth portions, and magnetic pole portions are integrally punched and laminated. A winding 21 is attached to the toothed portion (31 in FIG. 4) of the stator magnetic core 28 via an insulator 26.29. A rotor magnet 25 , which is integrally fixed to the shaft 19 , is rotatably arranged around the shaft 19 in the center of the stator magnetic core 28 . The shaft 19 is supported on the outer periphery of a stator magnetic core 28 via a bracket 17.degree. 22 and ball bearings 18 and 23. The outer frame 16 is fixed to the outer periphery of the stator magnetic core 28 and has a bracket 17°2.
2 positioning is being performed.

The operation of the rotating electric motor configured as described above will be explained below.The winding 21 is energized by the power applied from the external lead wire (not shown), the stator magnetic core 28 is excited, and the electric power is applied through the air gap. The shaft 19 rotates due to electromagnetic action with the rotor magnet 26 facing each other.

Problems to be Solved by the Invention However, in the above configuration, the winding 21 is inserted into the groove 33 from the inner peripheral side through the groove opening 32. In this case, the means to do this include winding the coil by hand, inserting the needle of a winding machine into the groove opening 32 and winding the coil directly, or forming the coil in advance if the thickness is small. The wire is inserted into the groove 33 using an inserter, and the work is difficult to compensate for, especially in the case of long stacked wires, the quality is poor, and a large number of man-hours are required for the winding work.

In view of the above-mentioned drawbacks, the present invention aims to reduce the number of man-hours for assembling the windings and the core, and at the same time improve quality, by making the stator magnetic core a split structure, at the same time forming the yoke part from a tubular steel material, and integrally molding it. It is.

Means for Solving the Problems In order to solve the above problems, the rotating electric motor of the present invention includes:
a stator magnetic core tooth portion punched out and laminated integrally with a magnetic pole portion; a winding portion concentrically wound around the stator magnetic core tooth portion; A plurality of stator magnetic core teeth are arranged concentrically with the magnetic pole face toward the center.
It is equipped with a split core and a winding structure, which are arranged and connected to the core in a magnetic circuit, and are composed of a yoke made of a tubular steel material.

Effect: With the above-described configuration, the present invention winds the tooth portions of the divided stator magnetic core through an insulator, and when the stator magnetic core with the windings is inserted into the tubular steel material. K
It is possible to reduce the number of man-hours required for assembling the windings and core, and at the same time improve quality. Furthermore, by forming the yoke part from a tubular steel material, the yoke part can also serve as the outer frame, and both dimensions of the structure can be simplified and downsized.

EXAMPLE Hereinafter, a rotating electric motor according to an example of the present invention will be described with reference to the drawings. FIG. 1 shows a structural sectional view of a rotary electric motor in an embodiment of the present invention. Figure 2 is the first
A cross section taken along line AA' in the figure is shown. In FIG. 1, reference numeral 14 denotes a stator magnetic core whose teeth and magnetic poles are integrally punched out and stacked. A winding 6 is provided on the teeth of the stator magnetic core 14 via insulators 11 and 12. A rotor magnet 1o, which is integrally fixed to the shaft 3, is rotatably arranged around the shaft 3 at the center of the stator magnetic core 14. The yoke 6 is made of a tubular steel material, and is magnetically coupled to the stator magnetic core 14, and also serves as the outer frame of the motor. Shaft 3 includes brackets 1 and 7 and ball bearing 2
, 8 are supported by the yoke portion 6. In this case, a spigot or the like is provided in the yoke portion 6, which also serves as an outer frame, to hold the bracket 1°7. The operation of the rotating electric motor configured as described above will be explained below with reference to FIGS. 1 and 2. The winding 6 is energized by a power source applied from an external sun wire (not shown), the stator magnetic core 14 is excited, and the shaft 3 is rotated due to electromagnetic action with the rotor magnet 1o facing across the air gap. Rotate. As described above, according to this embodiment, windings are applied to the teeth of the divided stator magnetic core through an insulator, and the stator magnetic core with the windings is inserted into the tubular steel material. By doing so, it is possible to reduce the number of man-hours for assembling the windings and core, and at the same time to improve quality. Furthermore, by forming the yoke part from a tubular steel material, the yoke part can also serve as the outer frame, and both dimensions of the structure can be simplified and downsized.

Effects of the Invention As described above, the present invention provides a stator magnetic core tooth portion that is punched out integrally with a magnetic pole portion and is laminated, and a winding portion that is concentrically wound around the stator magnetic core tooth portion. and a plurality of stator magnetic core tooth parts on which the windings are concentrically wound are arranged concentrically with the magnetic pole surface facing the center side, and are connected to this in a magnetic circuit, and the steel material has a tubular shape. By providing a split core and a winding structure consisting of a yoke portion configured as shown in FIG. Furthermore, by forming the yoke part from a tubular steel material, the yoke part can also serve as the outer frame, and both dimensions of the structure can be simplified and downsized.

[Brief explanation of drawings]

FIG. 1 is a structural sectional view of a rotating electric motor according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line AA' in FIG. 1, FIG. 3 is a structural sectional view of a conventional rotating electric motor, and FIG. 3 is a sectional view taken along line AA' in FIG. 3. 6... Yoke part, 14... Stator magnetic core tooth part, 16... Stator magnetic core magnetic pole part, 6
・・・・・・Winding part. Name of agent: Patent attorney Toshio Nakao and 1 other person6-
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Claims (5)

[Claims] (1) A stator magnetic core tooth portion that is punched out and laminated together with the magnetic pole portion, a winding portion that is concentrically wound around the stator magnetic core tooth portion, and the winding wire that is concentrically wound. A plurality of stator magnetic core tooth parts wound around the stator are arranged concentrically with the magnetic pole face at the center side, and are connected to this in a magnetic circuit, and a yoke part made of a tubular steel material. A rotating electric motor. (2) The rotating electric motor according to claim 1, wherein the yoke portion made of tubular steel also serves as an outer frame. (3) The rotating electric motor according to claim 1, wherein the winding is composed of self-fused wire. (4) The rotating electric motor according to claim 1, wherein the winding and the plurality of stator magnetic core teeth are integrally molded. (5) Claim 1 of a structure in which the winding, the plurality of magnetic core teeth, and the yoke are integrally molded.
The rotary electric motor described in section.