Motor

US11043886B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-11043886-B2
Application numberUS-201816648239-A
CountryUS
Kind codeB2
Filing dateOct 30, 2018
Priority dateJan 10, 2018
Publication dateJun 22, 2021
Grant dateJun 22, 2021

How to read this patent

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  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

According to the present invention, a coil is continuously wound in a single pass around each of a series of teeth, and connected to each segment.

First claim

Opening claim text (preview).

What is claimed is: 1. A motor, comprising: a yoke having four magnetic poles; an armature core, having a rotary shaft rotatably provided radially inside the yoke, six teeth attached to the rotary shaft and extending radially outward, and six slots formed between each of the teeth adjacent in a circumferential direction; a coil wound around each of the teeth; a commutator provided adjacent to the armature core on the rotary shaft, on which twelve segments are disposed in the circumferential direction; and a plurality of brushes supplying power to the coil via each of the segments, wherein when the teeth are sequentially numbered from 1 to 6 in the circumferential direction and the segments are sequentially numbered from 1 to 12 in the circumferential direction, a winding start terminal of the coil is connected to the first segment, and the coil is pulled around in one direction in a rotational direction of the rotary shaft from the first segment and wound around the fifth tooth in a forward direction, pulled around in the one direction from the fifth tooth and wound around the second tooth in the forward direction, pulled around in the one direction from the second tooth and connected to the twelfth segment, pulled around in the one direction from the twelfth segment and connected to the sixth segment, pulled around in the one direction from the sixth segment and wound around the sixth tooth in a reverse direction opposite the forward direction, pulled around in the one direction from the sixth tooth and wound around the third tooth in the reverse direction, pulled around in the one direction from the third tooth and connected to the eleventh segment, pulled around in the one direction from the eleventh segment and connected to the fifth segment, pulled around in the one direction from the fifth segment and wound around the first tooth in the forward direction, pulled around in the one direction from the first tooth and wound around the fourth tooth in the forward direction, pulled around in the one direction from the fourth tooth and connected to the fourth segment, pulled around in the one direction from the fourth segment and connected to the tenth segment, pulled around in the one direction from the tenth segment and wound around the second tooth in the reverse direction, pulled around in the one direction from the second tooth and wound around the fifth tooth in the reverse direction, pulled around in the one direction from the fifth tooth and connected to the third segment, pulled around in the one direction from the third segment and connected to the ninth segment, pulled around in the one direction from the ninth segment and wound around the third tooth in the forward direction, pulled around in the one direction from the third tooth and wound around the sixth tooth in the forward direction, pulled around in the one direction from the sixth tooth and connected to the eighth segment, pulled around in the one direction from the eighth segment and connected to the second segment, pulled around in the one direction from the second segment and wound around the fourth tooth in the reverse direction, pulled around in the one direction from the fourth tooth and wound around the first tooth in the reverse direction, pulled around in the one direction from the first tooth and connected to the seventh segment, and pulled around in the one direction from the seventh segment and connected to the first segment.

Assignees

Inventors

Classifications

  • H02K23/38Primary

    having winding or connection for improving commutation, e.g. equipotential connection · CPC title

  • by laying conductors into slotted rotors · CPC title

  • H02K13/04Primary

    Connections between commutator segments and windings · CPC title

  • Layout of windings or of connections between windings (windings for pole-changing H02K17/06, H02K17/14, H02K19/12, H02K19/32) · CPC title

  • characterised by the armature windings · CPC title

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Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US11043886B2 cover?
According to the present invention, a coil is continuously wound in a single pass around each of a series of teeth, and connected to each segment.
Who is the assignee on this patent?
Mitsuba Corp
What technology area does this patent fall under?
Primary CPC classification H02K23/38. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jun 22 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 2 related publications on this page (citations in our corpus or others sharing the same primary CPC).