JPS60219934A - Stator winding of motor - Google Patents

Abstract

PURPOSE:To readily obtain a stator coil of a reduced diameter and a long axis by wiring by printing individual stator coils on a flexible insulating plate, and cylindrical forming the plate in inside contact with the stator. CONSTITUTION:A pattern coil 5 of copper foil is wired by printing on a flexible insulating film 4. The film 4 having pattern coil 5 group is cylindrically formed and contacted inside with the stator. Thus, a stator having extremely short inner diameter and a large length can be manufactured in a good workability.

Description

[Detailed description of the invention] [Technical field of invention] This invention relates to an identifer winding for an electric motor.

[Conventional technology]

Conventionally, there was a stator made of Yuzu as shown in Fig. 1. In the figure, (1) is a stator core, and (2) is slots, which are punched out at equal intervals around the entire circumference of the stator core (1) in the shape shown in the figure. In these slots (2) there is a second
A coil (3
) are stored.

The stator of a conventional electric motor is constructed as described above, so depending on the shape of the electric motor, the inner diameter of the stator is small and the number of laminated iron cores is large, that is, the iron core layer is long. The workability of storing the coil (3) inside is extremely deteriorated. For example, when the stator core (1) has an inner diameter of 60W and a length of about 2001111, there is a drawback that it becomes impossible to work with the normal method.

[Summary of the invention]

This invention was made in order to eliminate the above-mentioned drawbacks, and a printed circuit board is manufactured by forming a swirl of gold maple foil such as copper or aluminum on a flexible insulating sheet. By making it cylindrical and storing it in contact with the inner diameter of the stator, it has the same function as a conventional wound coil.Even if the stator has a small inner diameter and a long width, the above cylindrical print can be used. The present invention provides a method for easily manufacturing a stator with a special shape, that is, an extremely small inner diameter and a long stator, which facilitates the work of storing substrates.

[Embodiments of the invention]

An embodiment of the present invention will be described below with reference to the drawings. 6th
In the figure, (4) is a flexible insulating film, (5)
) is the copper foil putter 7 coil that is blit-wired to this flexible insulating film. The front and back surfaces form one coil.

Figure 5 is a diagram showing the arrangement of pattern coils (5) by developing the entire length of the flexible insulating film (4).
This pattern coil (5) is made by forming an insulating film (4) into a cylindrical shape, inscribing it in the stator core (1) shown in Fig. 1, and applying a step-like pulse voltage to make one rotation in 6 pulses. A magnetic field is obtained. Moreover, if the position of this pattern coil (5) is shifted and a second layer coil is arranged so as to be located in the middle of the im-th coil, 12 phases will be obtained.

Figure 6 is a developed diagram showing the case of a 6-phase motor coil.The pattern coil (2 5-inch coils are placed in adjacent sashes, and the width of these 2 coils is designated as A as shown in the figure.The following two patterns Make the blank space between the coils (5) A/6 as shown in the figure, arrange 6 groups of pattern coils (5), and connect the terminals of each putter/coil (5) as shown in the figure. In this case, a six-phase two-pole stator coil can be obtained.

Figure 7 shows a 6-phase, 2-pole, full-pitch stator coil in which the flexible insulating film (4) with the developed patterned coil (5) group described above is formed into a cylindrical shape and stacked in 6 layers. .

To further increase the number of turns, add 6 layers of pattern coils (5), overlap the 6 layers, and connect the pattern coils (5) for each phase of U, V, and W to obtain a coil with twice the number of turns. can get.

Although the above embodiment describes a 6-phase, 2-pole coil arrangement, the present invention may be applied to other types of motors, for example, multi-pole stator coils such as pulse motors. It has the same effect as.

〔Effect of the invention〕

As described above, according to the present invention, the individual stator coils are printed wired on a flexible insulating plate, formed into a cylindrical shape, and configured to be inscribed in the stator. There are effects that can be easily obtained.

[Brief explanation of the drawing]

FIG. 1 is a plan view showing a conventional stator, FIG. 2 is an explanatory diagram showing the shape of a conventional stator winding before the stator is installed, FIG. 6 is a developed view showing an embodiment of the present invention, and FIG. The figure is number 6
Figure 5 is a configuration diagram showing the case where the noku turn coil crab is arranged on both the front and back sides, Figure 5 is a development diagram when 6 continuous pattern coils are installed, Figure 6 is a 6-pole 2-phase pattern coil FIG. 7 is a diagram showing a case in which the flexible insulating film provided with the cross-turn coil shown in FIG. 6 is formed into a cylindrical shape and has six layers. In the figure, (1) is the stator core, (2) is the slot,
(3) Ha coil, (4) Ha flexible insulation film,
(5) is a pattern coil. Note that the same reference numerals in the figures indicate the same or equivalent parts. Representative Patent Attorney Sanro KimuraFigure 1Figure 2Figure 4Figure 5

Claims (1)

[Claims] A stator winding for an electric motor, in which a coiled bullet wiring is formed on a flexible insulating film sheet using copper foil or aluminum foil, the insulating film sheet is formed into a cylindrical shape, and the insulating film sheet is inscribed and housed in the stator of the electric motor.