JPH069347U - Motor - Google Patents

Abstract

(57) [Abstract] [Purpose] In a motor having a winding on a stator and inserting the winding into a slot, even if the slot opening is widened to facilitate winding work. , To ensure the required motor characteristics. In a motor having a stator winding 2, a slot resin including a slot opening and the stator winding 2 are filled with a mold resin 1 containing a magnetic material.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a motor having a winding on a stator.

[0002]

[Prior art]

 As shown in FIGS. 2 and 3, for example, as shown in FIGS. 2 and 3, a motor having a winding on a stator uses an iron core 3 in which soft magnetic silicon steel plates are laminated, and slots 4 are formed in the iron core 3 to form a coil. The winding 2 is inserted into the slot 4 and fixed with varnish or the like.

In this case, the characteristics of the motor are greatly influenced by the shape of the slot 4, and therefore, in order to improve the characteristics, the distance between the slot opening portions should be shortened, or the characteristics shown in FIG. 4 (A) or (B) should be used. As shown in, a magnetic wedge 5 and a magnetic ring 6 are attached to the slot opening.

[0004]

[Problems to be solved by the device]

 However, shortening the distance of the slot opening not only hinders the work of inserting the winding 2 into the slot 4, but may damage the winding 2 at the time of insertion. Therefore, the work of inserting the winding 2 is restricted.

Further, the method of attaching the magnetic wedge 5 and the magnetic ring 6 to the slot opening portion is complicated in work, and especially when the magnetic ring 6 is inserted, when the residual magnetic flux leaks through the magnetic ring 6, There is a drawback that deteriorates the motor characteristics.

Therefore, in the present invention, in a motor having a winding on a stator and inserting the winding in a slot, even if the distance of the slot opening is widened to facilitate winding work, This is to ensure the necessary motor characteristics.

[0007]

According to the present invention, in a motor having a winding in a stator and inserting the winding into a slot, the entire stator including the slot opening is made of a magnetic material. Fill with the included mold resin.

[0008]

[Action]

 In the motor of the present invention configured as described above, even if the distance between the slot openings is large, the magnetic substance in the mold resin constitutes a magnetic circuit, so that the required motor characteristics can be obtained. can get.

[0009]

【Example】

 1 (A) and 1 (B) show an example of a motor of the present invention, in which slots 4 are formed in an iron core 3 in such a manner that the slot opening is widened and the winding 2 is inserted into the slot 4 from the slot opening. Then, the mold resin 1 is inserted into the slot 4 including the winding 2 and the slot opening.

The slot 4 shown in FIGS. 1 (A) and 1 (B) has a wide open portion and the entire stator is covered with the mold resin 1. The conventional motor shown in FIGS. Different from

The mold resin 1 is a heat-resistant thermosetting resin having an insulation class of B type or more, and a soft magnetic material having a particle size of 50 μm or less is mixed as a filler in a volume ratio of 10 to 80%. It shall have magnetic properties.

[0012]

[Effect of device]

 According to the present invention described above, since the slot opening can be widened, the winding 2 can be easily inserted into the slot 4, and the mechanization and efficiency of the winding insertion work can be achieved.

By filling the slot opening portion and the inside of the slot 4 with the mold resin 1 having magnetic characteristics, magnetically, the area becomes the same as that of the slot 4 having a reduced area. The characteristics are improved.

By reliably impregnating the inside of the winding 2 with the mold resin 1 having a high heat resistance, the heat resistance can be increased and the characteristics of the motor can be sufficiently exhibited, and at the same time, the mold can be sufficiently exhibited. The electromagnetic vibration and noise of the winding wire 2 can be reduced by the fixing with the resin 1.

[Brief description of drawings]

1A and 1B show a main part of an example of a motor of the present invention, in which FIG. 1A is a side view with a part in section, and FIG. 1B is a sectional view taken along line AA.

FIG. 2 is a diagram showing a main part of an example of a conventional motor.

3 is a cross-sectional view taken along the line BB of FIG.

FIG. 4A and FIG. 4B are diagrams showing other examples of conventional motors.

[Explanation of symbols]

 1 Mold resin 2 Winding 3 Iron core 4 Slot 5 Magnetic wedge 6 Magnetic ring

Continuation of the front page (72) Kotobuki Nakamura 3-1-1 Yoshino-cho, Nishibiwajima-cho, Nishibashijima-gun, Nishi-Kasugai-gun, Aichi Prefecture Takadake Manufacturing Co., Ltd. Technical Development Center (72) Inventor Jun Fujimoto 3-chome Nakanoshima, Kita-ku, Osaka-shi, Osaka 3-22 No. 22 Kansai Electric Power Co., Inc. (72) Atsushi Morimoto Atsushi Morimoto 3-3-22 Nakanoshima, Kita-ku, Osaka City, Osaka Prefecture Kansai Electric Power Co., Inc.

Claims (1)

[Scope of utility model registration request] 1. A motor having a winding on a stator, the whole stator being filled with a mold resin containing a magnetic material.