Rotating electrical machine
US-2016036291-A1 · Feb 4, 2016 · US
Method for manufacturing stator for electric rotary machine
US11424664B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11424664-B2 |
| Application number | US-201816494079-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 15, 2018 |
| Priority date | Mar 17, 2017 |
| Publication date | Aug 23, 2022 |
| Grant date | Aug 23, 2022 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A method for manufacturing a stator for an electric rotary machine including a stator core formed by stacking a plurality of steel plates and a coil attached to the stator core, the method includes forming the steel plates, forming the stator core by stacking and fixing the plurality of steel plates with an adhesive, attaching the coil to the stator core, and changing a stack strength of the stator core, by deteriorating the adhesive such that a bending resonance frequency of the stator does not overlap with a pre-measured circular resonance frequency of the stator, the bending resonance frequency varying depending on the stack strength of the plurality of steel plates.
First claim
Opening claim text (preview).
What is claimed is: 1. A method for manufacturing a stator for an electric rotary machine including a stator core formed by stacking a plurality of steel plates and a coil attached to the stator core, the method comprising: forming the steel plates; forming the stator core by stacking and fixing the plurality of steel plates with an adhesive; attaching the coil to the stator core; and changing a stack strength of the stator core, by deteriorating the adhesive such that a bending resonance frequency of the stator does not overlap with a circular resonance frequency of the stator, the bending resonance frequency varying depending on the stack strength of the plurality of steel plates, the circular resonance frequency being determined by an inner diameter, an outer diameter, and material characteristics of the stator core. 2. The method for manufacturing a stator for an electric rotary machine according to claim 1 , wherein in the changing the stack strength, the adhesive is deteriorated by a heating temperature when varnish supplied to the stator is cured by heat. 3. The method for manufacturing a stator for an electric rotary machine according to claim 2 , wherein in the changing the stack strength, the adhesive is deteriorated by further heating the stator to a temperature higher than the heating temperature when the varnish is cured by heat.
Assignees
Inventors
Classifications
Shaping or compacting conductors or winding heads after the installation of the winding in the cores or machines; Applying fastening means on winding heads · CPC title
Dynamoelectric machine · CPC title
Processes or apparatus specially adapted for manufacturing, assembling, maintaining or repairing of dynamo-electric machines · CPC title
- H02K15/021Primary
Magnetic cores · CPC title
Electric machine technologies in electromobility · CPC title
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- What does patent US11424664B2 cover?
- A method for manufacturing a stator for an electric rotary machine including a stator core formed by stacking a plurality of steel plates and a coil attached to the stator core, the method includes forming the steel plates, forming the stator core by stacking and fixing the plurality of steel plates with an adhesive, attaching the coil to the stator core, and changing a stack strength of the st…
- Who is the assignee on this patent?
- Honda Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K15/021. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Aug 23 2022 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).