US3553505A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rectifier device for alternating current lighting generator
Assignee: Denso Corp
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Filing: 1969-03-28
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Granted: 1971-01-05
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Expires: 1989-03-28
Abstract
Abstract A rectifier device for an alternating current lighting generator for motor vehicles in which a carrier for carrying and cooling diodes of the device are arranged in a bearing shield of the generator and in which the carrier is formed from sheet metal strips provided with a plurality of cutouts extending uniformly spaced from each other and transversely to the longitudinal direction of the strip and then bent into a fan-shaped polygonal configuration, whereby the carrier may be produced with a minimum of scrap while having improved rigidity and heat dissipation.
Inventors
- 👤 Suguru Sato
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 23:12
CPC Classifications
H; H10; H10W; H10W90/00; H02; H02K; H02K11/00; H02K11/04; H02K11/049; H02K11/05; H02K5/00; H02K5/04; H02K5/22; H02K5/225; H02K9/00; H02K9/22; H02K9/227; H10W40/00; H10W40/20; H10W40/22; H10W40/226; H02K19/00; H02K19/16; H02K19/26
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
80 words
In an alternating current lighting generator for motor vehicles, in combination, a pair of bearing shields for said generator; a rectifier device arranged in one of said bearing shields and comprising a plurality of semiconductor rectifier elements; and carrier means for carrying and cooling said elements and comprising sheet metal strips each provided with a plurality of cutouts extending uniformly spaced from each other and transverse to the longitudinal direction of said strip and bent into a fan-shaped polygonal strip.
Claim 2
Dependent Claim
80 words
In an alternating current lighting generator for motor vehicles, in combination, a pair of bearing shields for said generator; a rectifier device arranged in one of said bearing shields and comprising a plurality of semiconductor rectifier elements; and carrier means for carrying and cooling said elements and comprising sheet metal strips each provided with a plurality of cutouts extending uniformly spaced from each other and transverse to the longitudinal direction of said strip and bent into a fan-shaped polygonal strip.
Claim 3
Dependent Claim
40 words
A structure as defined in claim 1, wherein each of said strips has between said cutouts a U-shaped cross section, having a base portion carrying said elements and a pair of flange portions extending substantially normal to said base portion.
Claim 4
Dependent Claim
56 words
A structure as defined in claim 2, wherein each of said strips is provided at each of said cutouts with a pair of wing portions extending substantially normal to said base portion to the same side as said flange portions, the wing portions at each cutout abutting against each other and being connected to each other.
Claim 5
Dependent Claim
43 words
A structure as defined in claim 2, wherein each of said cutouts forms a substantially circular opening in said base portion, and including fastening means extending through said circular opening for fastening said carrier means to said one bearing shield of the generator.
Claim 6
Dependent Claim
14 words
A structure as defined in claim 1, wherein said semiconductor rectifier elements are diodes.
Claim 7
Dependent Claim
54 words
A structure as defined in claim 1, wherein said bearing shields are provided with openings and including fan means adjacent the other of said bearing shield for drawing a stream of cooling air through said openings and through said generator, said carrier means being located in the path of said stream of cooling air.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1974-01-04 | 1974-07-06 | 1975-01-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-04 | 1978-07-06 | 1979-01-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-04 | 1982-07-06 | 1983-01-05 | $7700.00 | Window Closed / Lapsed |