D-ring implementation in skewed rotor assembly
US-9941775-B2 · Apr 10, 2018 · US
Consequent-pole-type rotor, electric motor, and air conditioner
US11190069B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11190069-B2 |
| Application number | US-201616099073-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jun 22, 2016 |
| Priority date | Jun 22, 2016 |
| Publication date | Nov 30, 2021 |
| Grant date | Nov 30, 2021 |
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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.
A consequent-pole-type rotor includes a first rotor core having a first insertion hole, and a second rotor core having a second insertion hole, the second rotor core being stacked on the first rotor core such that the first insertion hole and the second insertion hole together form a space accommodating a permanent magnet. The first insertion hole has an opening at a first circumferential position of the first rotor core, and the second insertion hole is occluded at least at a second circumferential position of the second rotor core. The second circumferential position corresponds to the first circumferential position.
First claim
Opening claim text (preview).
The invention claimed is: 1. A consequent-pole-type rotor comprising: a first rotor core having a first insertion hole; and a second rotor core having a second insertion hole, the second rotor core being stacked on the first rotor core such that the first insertion hole and the second insertion hole together form a space accommodating a permanent magnet, wherein the first insertion hole has an opening at a first circumferential position of the first rotor core, the opening being kept open without being filled up with any portion of the first rotor core, the second insertion hole is occluded at least at a second circumferential position of the second rotor core, the second circumferential position corresponds to the first circumferential position, and first rotor core blocks in each of which a plurality of the first rotor cores is stacked in an axial direction, and second rotor core blocks in each of which a plurality of the second rotor cores is stacked in the axial directions are alternately stacked in the axial direction. 2. The consequent-pole-type rotor according to claim 1 , wherein the first rotor core and the second rotor core comprise caulking formed in a core portion between a radially outer side of the permanent magnet and an outer peripheral surface of the first rotor core and the second rotor core. 3. The consequent-pole-type rotor according to claim 1 , wherein the opening, the first insertion hole, and the second insertion hole are covered with resin. 4. The consequent-pole-type rotor according to claim 1 , wherein the outer peripheral surface of the first rotor core and the second rotor core covered with resin is circular. 5. The consequent-pole-type rotor according to claim 1 , wherein the first rotor core and the second rotor core are formed by stacking, in an axial direction of the first rotor core and the second rotor core, the first rotor core, the second rotor core, and a third core not having the opening. 6. An electric motor comprising the consequent-pole-type rotor according to claim 1 and a stator. 7. An air conditioner comprising the electric motor according to claim 6 .
Assignees
Inventors
Classifications
with magnets rotating within the armatures · CPC title
- H02K1/276Primary
Magnets embedded in the magnetic core, e.g. interior permanent magnets [IPM] · CPC title
radially supporting the rotary shaft at both ends of the rotor (H02K5/1737 takes precedence) · CPC title
- H02K1/2766Primary
having a flux concentration effect · CPC title
having annular armature cores with salient poles (with homopolar co-operation H02K21/20) · CPC title
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Frequently asked questions
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- What does patent US11190069B2 cover?
- A consequent-pole-type rotor includes a first rotor core having a first insertion hole, and a second rotor core having a second insertion hole, the second rotor core being stacked on the first rotor core such that the first insertion hole and the second insertion hole together form a space accommodating a permanent magnet. The first insertion hole has an opening at a first circumferential posit…
- Who is the assignee on this patent?
- Mitsubishi Electric Corp, Mitsubishi Elextric Corp
- What technology area does this patent fall under?
- Primary CPC classification H02K1/276. Mapped technology areas include Electricity.
- When was this patent published?
- Publication date Tue Nov 30 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).