Motor with exposed cooling structure
US-2024079933-A1 · Mar 7, 2024 · US
Electrically rotating machine
US9680340B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9680340-B2 |
| Application number | US-201314651118-A |
| Country | US |
| Kind code | B2 |
| Filing date | Nov 28, 2013 |
| Priority date | Dec 11, 2012 |
| Publication date | Jun 13, 2017 |
| Grant date | Jun 13, 2017 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
An electrically rotating machine, includes a rotor and a stator, the rotor and/or the stator including a laminated core, with an air gap being formed between the rotor and the stator, said rotor having axially and radially extending cooling paths in flow communication with each other and in flow communication with radially extending cooling paths of the stator via the air gap, wherein the radially extending cooling paths of the stator are respectively axially aligned with the radially extending cooling paths of the rotor; at least one fan for conducting an air flow through the axially and radially extending cooling paths of the rotor, the air gap and the cooling paths of the stator, wherein the air gap has at least one constriction defined by sheets of the laminated core of the rotor having an outer radius greater than remaining ones of the sheets of the laminated core of the rotor and/or by sheets of the laminated core of the stator having a smaller inner radius than remaining ones of the sheets of the laminated core of the stator.
First claim
Opening claim text (preview).
What is claimed is: 1. An electrically rotating machine, comprising: a rotor and a stator, said rotor and/or said stator comprising a laminated core, with an air gap being formed between the rotor and the stator, said rotor having axially and radially extending cooling paths in flow communication with each other and in flow communication with radially extending cooling paths of the stator via the air gap, said radially extending cooling paths of the stator being respectively axially aligned with the radially extending cooling paths of the rotor; at least one fan for conducting an air flow through the axially and radially extending cooling paths of the rotor, the air gap and the radially extending cooling paths of the stator, said air gap having at least one constriction defined by sheets of the laminated core of the rotor having an outer radius greater than remaining ones of the sheets of the laminated core of the rotor and/or by sheets of the laminated core of the stator having a smaller inner radius than remaining sheets of the laminated core of the stator; and at least one ring or a flexible band provided on an outer circumference of the sheets of the laminated core of the rotor having the greater outer radius, and/or on an inner circumference of the sheets of the laminated core of the stator having the smaller inner radius. 2. The electrically rotating machine of claim 1 , wherein the constriction of the air gap is formed in proximity to an end face of the rotor or of the stator. 3. The electrically rotating machine of claim 1 , wherein the constriction is formed axially between the radially extending cooling paths of the rotor and the radially extending cooling paths of the stator. 4. The electrically rotating machine of claim 1 , wherein the electrically rotating machine is constructed as an electric motor or as a generator.
Assignees
Inventors
Classifications
Machines characterised by aspects of the air-gap between rotor and stator · CPC title
- H02K1/20Primary
with channels or ducts for flow of cooling medium · CPC title
with fans or impellers driven by the machine shaft · CPC title
by gaseous cooling medium circulating wholly within the machine casing (H02K9/10 takes precedence) · CPC title
with channels or ducts for flow of cooling medium · CPC title
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Frequently asked questions
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- What does patent US9680340B2 cover?
- An electrically rotating machine, includes a rotor and a stator, the rotor and/or the stator including a laminated core, with an air gap being formed between the rotor and the stator, said rotor having axially and radially extending cooling paths in flow communication with each other and in flow communication with radially extending cooling paths of the stator via the air gap, wherein the radia…
- Who is the assignee on this patent?
- Siemens Ag, Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification H02K1/20. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Jun 13 2017 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).