Case structure for driving apparatus
US-2015236573-A1 · Aug 20, 2015 · US
Drive device for electric vehicle with respective motor generators having a coprime number of fasteners relative to each other
US9680359B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9680359-B2 |
| Application number | US-201214237175-A |
| Country | US |
| Kind code | B2 |
| Filing date | Jul 31, 2012 |
| Priority date | Aug 9, 2011 |
| Publication date | Jun 13, 2017 |
| Grant date | Jun 13, 2017 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
An electric vehicle drive device includes a casing; and a plurality of motor generators mounted in the casing, each of the motor generators including a plurality of fastening portions at which a stator of the motor generator is fixed to the casing, and a number of the fastening portions of one of the motor generators being coprime to a number of the fastening portions of at least one of the rest of the motor generators.
First claim
Opening claim text (preview).
The invention claimed is: 1. A drive device for an electric vehicle, comprising: a casing; and a plurality of motor generators mounted in the casing, wherein: each of the motor generators includes a plurality of fastening portions at which a stator of the motor generator is fixed to the casing, a number of the fastening portions of one of the motor generators is coprime to a number of the fastening portions of at least one of the rest of the motor generators, some of the plurality of fastening portions of a first motor generator of the plurality of motor generators are spaced apart at equal intervals about a circumferential direction of the first motor generator, and the plurality portions of a second motor generator of the plurality of motor generators are spaced apart at different intervals about a circumferential direction of the second motor generator. 2. The drive device for the electric vehicle according to claim 1 , wherein a position of at least one of the fastening portions of the one of the motor generators is offset, in a circumferential direction of the stators, from positions of all of the fastening portions of the at least one of the rest of the motor generators. 3. The drive device for the electric vehicle according to claim 2 , wherein center axes of the stators coincide with each other. 4. The drive device for the electric vehicle according to claim 1 , wherein the stators include stator core plates with a same shape as the stators.
Assignees
Inventors
Classifications
Structure borne vibrations · CPC title
specially adapted for suppression or reduction of noise or vibrations · CPC title
- H02K16/00Primary
Machines with more than one rotor or stator {(machines for transmitting mechanical power from a driving shaft to a driven shaft and comprising structurally interrelated motor and generator parts H02K51/00; permanent magnet machines with multiple rotors or stators relatively rotated for vectorially combining the excitation fields or the armature voltages H02K21/029)} · CPC title
Cross-Sectional Technologies · mapped topic
Structural details of electrical machines · CPC title
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Frequently asked questions
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- What does patent US9680359B2 cover?
- An electric vehicle drive device includes a casing; and a plurality of motor generators mounted in the casing, each of the motor generators including a plurality of fastening portions at which a stator of the motor generator is fixed to the casing, and a number of the fastening portions of one of the motor generators being coprime to a number of the fastening portions of at least one of the res…
- Who is the assignee on this patent?
- Hattori Hiroyuki, Toyota Motor Co Ltd
- What technology area does this patent fall under?
- Primary CPC classification H02K16/00. 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).