Stator of dynamo-electric machine

US12525838B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12525838-B2
Application numberUS-202318210714-A
CountryUS
Kind codeB2
Filing dateJun 16, 2023
Priority dateJun 28, 2022
Publication dateJan 13, 2026
Grant dateJan 13, 2026

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

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  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.

Provided is a stator of a dynamo-electric machine capable of sufficiently securing the strength of a welding portion of a winding and a coil of a power distribution member by a required minimum configuration, without affecting the insulation coating thickness of an entire end portion. The stator of the dynamo-electric machine of the present invention includes a stator core, a winding wound around the stator core, a power distribution member having a coil in which one end is connected to the winding and the other end is connected to a power supply device, and an insulating film coating at least one end portion of the winding. The stator has a fixing portion fixing the winding and the coil of the power distribution member.

First claim

Opening claim text (preview).

What is claimed is: 1 . A stator of a dynamo-electric machine comprising: a stator core; a winding wound around the stator core; a power distribution member having a coil in which one end is connected to the winding and the other end is connected to a power supply device; and an insulating film coating at least one end portion of the winding, wherein the stator has a fixing portion fixing the winding and the coil of the power distribution member, the fixing portion is fixed by an adhesive material provided separately from the insulating film, and the adhesive material has thixotropic properties. 2 . The stator of the dynamo-electric machine according to claim 1 , wherein the fixing portion is fixed by an adhesive material provided separately from the insulating film. 3 . The stator of the dynamo-electric machine according to claim 2 , wherein the adhesive material is a material that has a fluidity at the time of coating to the fixing portion and is cured to be fixed to the fixing portion. 4 . The stator of the dynamo-electric machine according to claim 2 , wherein the fixing portion is provided on an open side on which the winding of the stator is not folded back. 5 . The stator of the dynamo-electric machine according to claim 1 , wherein the fixing portion is fixed by a foaming adhesive. 6 . The stator of the dynamo-electric machine according to claim 1 , wherein the fixing portion is fixed by a UV curable adhesive.

Assignees

Inventors

Classifications

  • Fastening salient pole windings or connections thereto · CPC title

  • Terminal boxes or connection arrangements (specially adapted for submersible motors H02K5/132) · CPC title

  • Electric machine technologies in electromobility · CPC title

  • around winding heads, equalising connectors, or connections thereto · CPC title

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

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Frequently asked questions

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What does patent US12525838B2 cover?
Provided is a stator of a dynamo-electric machine capable of sufficiently securing the strength of a welding portion of a winding and a coil of a power distribution member by a required minimum configuration, without affecting the insulation coating thickness of an entire end portion. The stator of the dynamo-electric machine of the present invention includes a stator core, a winding wound arou…
Who is the assignee on this patent?
Hitachi Astemo Electric Motor Systems Ltd, Hitachi Astemo Ltd
What technology area does this patent fall under?
Primary CPC classification H02K3/50. Mapped technology areas include Electricity.
When was this patent published?
Publication date Tue Jan 13 2026 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).