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Motor

A technology for motors and armatures, applied in the field of motors, can solve problems such as weakening of end cap strength

Active Publication Date: 2013-01-02
DENSO CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there may be a problem that the strength of the end cap at this portion may be weakened due to the increase in the width of the notch portion (interrupted portion of the peripheral wall) where the notch corresponding portion is arranged.

Method used

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Embodiment Construction

[0014] Hereinafter, an embodiment embodying the present invention will be described with reference to the drawings.

[0015] Such as Figure 1A as well as Figure 1B As shown, the motor 1 includes: a yoke 2 formed of a magnetic metal material into a substantially cylindrical shape having a bottom and an open end; and an end cover 3 fixed to substantially close the open end of the yoke 2 . A magnet (not shown) is fixed on the inner peripheral surface of the yoke 2 . An armature is accommodated in the yoke 2 . The rotating shaft 4 of the armature is rotatably supported by an unillustrated bearing and a bearing 5. The unillustrated bearing is held at the center of the bottom of the yoke 2, that is, at the center of the end face opposite to the open end. 5 is held on the bottom of the end cap 3. On the rotating shaft 4, in addition to the core on which the winding is wound, a commutator and a sensor magnet 6 are also fixed (refer to Figure 1B ). Such as Figure 1B As shown,...

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Abstract

The invention provides a motor capable of easily ensuring strength of an end cover via shortening the width of a gap part. The motor is provided with: an armature; a yoke provided with a bottom and an open end and accommodating an armature; and an end cover. The end cover substantially closes the open end of the yoke. A connector portion, which bulges outward of the yoke, and a cutout portion are formed in the circumferential wall of the end cover. A pair of feed members is provided to extend from the interior of the end cover to the connector portion through the cutout portion. The end cover has an accommodation recess for accommodating the noise suppression element at a position corresponding to the cutout portion. Each feed member has an accommodation recess corresponding portion, which corresponds to the accommodation recess, and a cutout portion corresponding portion, which corresponds to the cutout portion. The distance between the accommodation recess corresponding portions of the feed members is greater than the distance between the cutout portion corresponding portions.

Description

technical field [0001] The invention relates to an electric motor which can be equipped with a noise suppressing element. Background technique [0002] Conventionally, there is known a motor comprising: an armature; a substantially cylindrical yoke having a bottom and an open end, and the armature is rotatably accommodated in the yoke; and an end bracket having a substantially cylindrical shape. The opening end of the yoke is closed and fixed, and noise suppression elements such as capacitors are installed on the end cap. For example, in the motor described in JP 2009-112095 A, a connector portion that bulges toward the outside of the yoke as viewed in the axial direction is formed on a part of the peripheral wall of the end cover. A notch for communicating the inside of the end cap with the connector portion is formed on a portion of the peripheral wall of the end cap corresponding to the connector portion. A pair of power supply members extend from the inside of the end ...

Claims

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Application Information

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IPC IPC(8): H02K23/66
CPCH02K5/225H02K11/026
Inventor 松本直树
Owner DENSO CORP
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