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Stator and electric motor in which same is used

A stator and stator core technology, applied in the field of electric motors, can solve the problems of narrowing winding space and increasing thickness of insulating members, etc., and achieve the effect of expanding winding space and small performance.

Active Publication Date: 2015-12-30
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in such a conventional motor, the outer ring yoke of the stator core is annular, and the insulating member is composed of an integral molded product of insulating resin. After the winding frame is used to wind the winding around the stator core, the The insulating member is inserted into the stator core from the upper and lower directions, so the rigidity of the insulating member is required, so the thickness of the insulating member is increased and the winding space is narrowed

Method used

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  • Stator and electric motor in which same is used
  • Stator and electric motor in which same is used
  • Stator and electric motor in which same is used

Examples

Experimental program
Comparison scheme
Effect test

no. 1 approach

[0019] Such as figure 1 As shown, the motor 1 of this embodiment includes a stator 2, a rotor 3 arranged inside the stator 2, an upper cover 4 and a lower cover 5 arranged outside the stator 2, and a Terminal block 6. The rotor 3 of the motor 1 is rotated by energizing the stator 2 from an external power source through the terminal block 6 . Such as figure 2 As shown, in this embodiment, the stator 2 includes a stator core 7 , an upper insulator 10 and a lower insulator 11 , a winding 12 and an insulating member 13 , and an insulating member temporary placement portion 14 is provided on the lower insulator 11 . The insulating member temporary placement portion 14 is provided on the outer peripheral side of the lower insulator 11 , and has a groove between the main body of the lower side insulator 11 and the insulating member temporary placement portion 14 . An insulating member 13 to be described later is inserted into the groove to temporarily place the insulating member ...

no. 2 approach

[0035] Such as Figure 5 As shown, the stator core 7a constituting the stator 2a in this embodiment is divided into four split core bodies 8 and four connecting split core bodies 9 sandwiched between the split core bodies 8, and has a structure of eight parts in total. In addition, the core body 16 is manufactured by integrally molding the insulator 15 and the split core body 8 , and after the insulating member 13 is held by the insulator 15 , the split core body 8 is pressed from the outer peripheral direction to sandwich the insulating member 13 between the insulator 15 . Between the split core body 8.

[0036] According to the stator 2 a of the present invention, since the strength of the insulator 15 can be increased, the insulating member 13 can be held with a thinner wall thickness of the insulator 15 than in Embodiment 1, so a wider winding space can be secured. Therefore, it is possible to provide a smaller motor and a blower with better performance.

[0037] It shou...

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PUM

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Abstract

The present invention is provided with a stator core (7) that is configured in an annular fashion using a plurality of segmented toothed cores (8) and connecting segmented cores (9) that are the same in number as the segmented cores (8) and that are held in between the segmented cores (8). Also provided are upper insulators (10) and lower insulators (11) that sandwich the segmented cores (8) from the direction of the axis of rotation and winding wires (12) that are wound around the upper insulators (10) and the lower insulators (11). The connecting segmented cores (9) are pressed from the outer circumferential direction to further provide insulating members (13) that are held in between the upper insulators (10), the lower insulators (11), and the connecting segmented cores (9) on the outer circumferential side of the winding wires (12).

Description

technical field [0001] The present invention relates to a stator of an induction motor mainly used for a ventilation blower and a motor using the same. Background technique [0002] In an induction motor used for a ventilating blower, especially in an induction motor having a stator with a small number of slots, since the outer periphery of the winding space, that is, the opening of the winding is narrowed by the outer peripheral core, it cannot Winding is easily performed. Therefore, it is generally known in the past to use a winding form (former) to make the winding fall into the winding space from the opening. [0003] In addition, in recent years, there has been known a structure in which a winding frame made of an insulator is provided, and the opening of the winding is enlarged by making the length of the outer wall of the winding frame shorter than the inner wall, and the winding is wound by the winding frame. After the stator core, by covering the portion beyond th...

Claims

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Application Information

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IPC IPC(8): H02K3/34H02K1/18H02K3/46H02K15/02H02K15/095
CPCH02K1/18H02K3/34H02K3/46H02K15/02H02K15/095
Inventor 柴田满
Owner PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO LTD