US3629631A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Full wave rectifier assemblies
Assignee: Individual
•
Filing: 1970-04-21
•
Granted: 1971-12-21
•
Expires: 1990-04-21
Abstract
Abstract A full wave rectifier assembly includes a first plate carrying first, second, and third semiconductor diodes with their terminals of one polarity electrically connected to the first plate, and a second plate positioned parallel to the first plate and in heat exchange relationship therewith. The second plate is spaced from the first plate by a thin layer of insulating material, and the other terminals of the first, second and third diodes of opposite polarity to the one polarity extend through holes in the second plate. Fourth, fifth and sixth semiconductor diodes are carried by the second plate with their terminals of the opposite polarity electrically connected to the second plate. The assembly further includes first, second, and third phase connectors, the first phase connector being connected to the other terminals of the first and fourth diodes, the second phase connector being connected to the other terminals of the second and fifth diodes and the third phase connector being connected to the other terminals of the third and sixth diodes, so that in use when the phases of a three-phase AC supply are connected to the phase connectors respectively DC will flow in a load connected across the first and second plates.
Inventors
- 👤 Herbert John Thomas Cotton
- 👤 Robert Hemmings
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 17:20
CPC Classifications
H; H10; H10W; H10W90/00
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
248 words
A full wave rectifier assembly including a first plate carrying first, second, and third semiconductor diodes with their terminals of one polarity electrically connected to the first plate, a second plate positioned parallel to the first plate and in heat exchange relationship therewith, the second plate being spaced from the first plate by a thin layer of insulating material, and the other terminals of said first, second and third diodes of opposite polarity to said one polarity extending through holes in said second plate, fourth, fifth and sixth semiconductor diodes carried by the second plate with their terminals of said opposite polarity electrically connected to the second plate, each of said first to sixth semiconductor diodes being mounted in a recess in one surface of its respective plate with the other surface of the plate being formed with complementary projections, and the second plate being formed adjacent the projections on the first plate with apertures to receive said projections respectively, and first, second and third phase connectors, the first phase connector being connected to the other terminals of the first and fourth diodes, the second phase connector being connected to the other terminals of the second and fifth diodes and the third phase connector being connected to the other terminals of the third and sixth diodes so that in use when the phases of a three-phase AC supply are connected to the phase connectors respectively DC will flow in a load connected across the first and second plates.
Claim 2
Dependent Claim
248 words
A full wave rectifier assembly including a first plate carrying first, second, and third semiconductor diodes with their terminals of one polarity electrically connected to the first plate, a second plate positioned parallel to the first plate and in heat exchange relationship therewith, the second plate being spaced from the first plate by a thin layer of insulating material, and the other terminals of said first, second and third diodes of opposite polarity to said one polarity extending through holes in said second plate, fourth, fifth and sixth semiconductor diodes carried by the second plate with their terminals of said opposite polarity electrically connected to the second plate, each of said first to sixth semiconductor diodes being mounted in a recess in one surface of its respective plate with the other surface of the plate being formed with complementary projections, and the second plate being formed adjacent the projections on the first plate with apertures to receive said projections respectively, and first, second and third phase connectors, the first phase connector being connected to the other terminals of the first and fourth diodes, the second phase connector being connected to the other terminals of the second and fifth diodes and the third phase connector being connected to the other terminals of the third and sixth diodes so that in use when the phases of a three-phase AC supply are connected to the phase connectors respectively DC will flow in a load connected across the first and second plates.
Claim 3
Dependent Claim
133 words
An assembly as claimed in claim 1 further including a third plate parallel to the first and second plates and in heat exchange relationship therewith, the third plate being spaced from the first plate by a thin layer of insulating material, seventh, eighth and ninth semiconductor diodes carried by the third plate with their terminals of said opposite polarity connected to the third plate and their other terminals of said one polarity extending through holes in the first and second plates respectively, said first, second and third phase connectors also being connected to the other terminals of said seventh, eighth and ninth diodes respectively, so that in use when the phases of the three-phase AC supply are connected to the phase connectors respectively a rectified signal will be produced at the third plate.
Claim 4
Dependent Claim
29 words
An assembly as claimed in claim 1 wherein the plates are mounted on a thermally conductive frame which comprises the principle heat sink and heat radiator of the assembly.
Claim 5
Dependent Claim
17 words
An assembly as claimed in claim 4 wherein said frame carriers the stator winding of an alternator.
Claim 6
Dependent Claim
63 words
An assembly as claimed in claim 2 wherein each of the seventh, eighth and ninth semiconductor diodes is mounted in a recess in one surface of the third plate with the other surface of the third plate being formed with complementary projections, and wherein the first plate is formed adjacent said projections on the third plate with apertures respectively to receive said projections.
References Cited (Backward Citations)
US2497141A
Cited
US3476950A
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US3078409A
Cited
GB1113428A
Cited
NL6603843A
Cited
US3538362A
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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) | 1974-12-20 | 1975-06-21 | 1975-12-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-12-20 | 1979-06-21 | 1979-12-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-12-20 | 1983-06-21 | 1983-12-21 | $7700.00 | Window Closed / Lapsed |