Patent US5095235A successfully refreshed from Google Patents.
US5095235A
Expired / Lapsed
US
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Vehicle ac generator
Assignee: Mitsubishi Electric Corp
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Filing: 1990-12-04
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Granted: 1992-03-10
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Expires: 2010-12-04
Abstract
Abstract A vehicle's AC generator is provided with a rotor magnetic pole core assembly fixedly mounted on a rotary shaft and excited through an exciting coil, stator-coil-mounted stator cores surrounding the magnetic pole core assembly, first and second brackets supporting the stator cores and rotatably supporting the rotary shaft through bearings, a pair of fans provided on both ends of the rotor magnetic pole core assembly, to allow cooling air to flow in the space defined by the first and second brackets, a rectifier, and a voltage regulator. In addition, a cooling solution circulating structure, made of a material high in thermal conductivity, is provided on the side of one of the first and second brackets. The cooling solution circulating structure, which has an upper frame and a lower frame, has a flow path inside to which a cooling solution is supplied from outside. The rectifier and the voltage regulator are mounted on the other surface of the cooling the generator with high efficiency and preventing the temperature increase of the generator.
Inventors
- 👤 Yutaka Kitamura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 09:18
CPC Classifications
H; H02; H02K; H02K19/00; H02K19/16; H02K19/36; H02K19/365; H02K11/00; H02K11/04; H02K11/049; H02K11/05; H02K9/00; H02K9/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
165 words
A vehicle's ac generator comprising: a rotor magnetic pole core assembly fixedly mounted on a rotary shaft and excited through an exciting coil; stator-coil-mounted stator cores surrounding said magnetic pole core assembly: first and second brackets supporting said stator cores and rotatably supporting said rotary shaft through bearings; a pair of fans provided on both ends of said rotor magnetic pole core assembly, to cause cooling air to flow in the space defined by said first and second brackets; a rectifier; and a voltage regulator, characterized in that, a cooling solution circulating structure comprising an upper frame and a lower frame being provided on the side of one of said first and second brackets, said cooling solution circulating structure having a flow path inside to which a cooling solution is supplied from outside, and said cooling solution circulating structure made of a material high in thermal conductivity, said rectifier and said voltage regulator are mounted on the outer surface of said cooling solution circulating structure.
Claim 2
Dependent Claim
165 words
A vehicle's ac generator comprising: a rotor magnetic pole core assembly fixedly mounted on a rotary shaft and excited through an exciting coil; stator-coil-mounted stator cores surrounding said magnetic pole core assembly: first and second brackets supporting said stator cores and rotatably supporting said rotary shaft through bearings; a pair of fans provided on both ends of said rotor magnetic pole core assembly, to cause cooling air to flow in the space defined by said first and second brackets; a rectifier; and a voltage regulator, characterized in that, a cooling solution circulating structure comprising an upper frame and a lower frame being provided on the side of one of said first and second brackets, said cooling solution circulating structure having a flow path inside to which a cooling solution is supplied from outside, and said cooling solution circulating structure made of a material high in thermal conductivity, said rectifier and said voltage regulator are mounted on the outer surface of said cooling solution circulating structure.
Claim 3
Dependent Claim
24 words
A vehicle's AC generator according to claim 1, in which said upper frame and said lower frame are combined liquid-tight with a seal member.
Claim 4
Dependent Claim
27 words
A vehicle's AC generator according to claim 2, in which said seal member is selected from a group comprising a liquid-phase gasket, sheet-shaped gasket and a O-ring.
Claim 5
Dependent Claim
26 words
A vehicle's AC generator according to claim 1, in which said upper frame and said lower frame are secured to each other by welding or caulking.
Claim 6
Dependent Claim
26 words
A vehicle's AC generator according to claim 1, in which said upper and lower frames are made of a material different from that of the brackets.
Claim 7
Dependent Claim
25 words
A vehicle's AC generator according to claim 1, in which said upper and lower frames are made of one of iron alloy and aluminum alloy.
Claim 8
Dependent Claim
31 words
A vehicle's AC generator according to claim 1, further comprising a cover means for forming a cooling air flow path on the side of one of said first and second bracket.
Claim 9
Dependent Claim
27 words
A vehicle's AC generator according to claim 7, in which said cover means is formed by a protective cover and one of said first and second bracket.
Claim 10
Dependent Claim
18 words
A vehicle's AC generator according to claim 8, in which said protective cover has an air sucking inlet.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-03-10 | 1995-09-09 | 1996-03-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-03-10 | 1999-09-09 | 2000-03-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-03-10 | 2003-09-09 | 2004-03-10 | $7700.00 | Window Closed / Lapsed |