US3600636A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical apparatus comprising a power section and a control section with fluid cooling
Assignee: Danfoss AS
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Filing: 1969-11-12
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Granted: 1971-08-17
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Expires: 1989-11-12
Abstract
Abstract The invention relates to an assembly of electrical apparatus which includes a power section and a control section. A container is provided for housing the power section and insulating cooling fluid for the power section. A cover plate of insulating material closes the top of the container and the control section is mounted on the cover plate. Holes are provided in the insulated cover plate with each hole being individually surrounded by a metal coating bonded to the insulating material. Connecting wires extend from above and/or below into the holes and each connecting wire terminates a short distance from the opposite side of its hole. Each connecting wire is soldered to the metal coating surrounding its hole to provide an electrical connection and to provide a fluidtight seal for the hole. Printed circuit means on the underneath side of the cover plate includes the metal coatings surrounding the hole to provide electrical interconnections between the soldered connecting wires.
Inventors
- 👤 Tom Kastrup Petersen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 06:21
CPC Classifications
H; H01; H01F; H01F27/00; H01F27/40
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
113 words
Electrical apparatus comprising a container, a power section and insulating cooling fluid in said container, a cover plate of an insulating material on said container, holes in said plate each being surrounded by a metal coating bonded to said insulating material, control section apparatus mounted on said cover plate, connector elements extending through said holes and being soldered to said metal coatings to provide electrical connections therebetween and to provide fluidtight sealing for said holes, conduction means electrically connecting at least parts of said control apparatus to said connector elements, and conduction means on the underside of said cover plate electrically connecting said power section to at least one of said metal coatings.
Claim 2
Dependent Claim
113 words
Electrical apparatus comprising a container, a power section and insulating cooling fluid in said container, a cover plate of an insulating material on said container, holes in said plate each being surrounded by a metal coating bonded to said insulating material, control section apparatus mounted on said cover plate, connector elements extending through said holes and being soldered to said metal coatings to provide electrical connections therebetween and to provide fluidtight sealing for said holes, conduction means electrically connecting at least parts of said control apparatus to said connector elements, and conduction means on the underside of said cover plate electrically connecting said power section to at least one of said metal coatings.
Claim 3
Dependent Claim
19 words
Electrical apparatus according to claim 1 wherein said control section apparatus includes switching elements carried by said cover plate.
Claim 4
Dependent Claim
16 words
Electrical apparatus according to claim 1 including a metal screening plate attached to said cover plate.
Claim 5
Dependent Claim
22 words
Electrical apparatus according to claim 3 wherein said screening plate supports at least a portion of the weight of said power section.
Claim 6
Dependent Claim
36 words
Electrical apparatus according to claim 1 including a printed circuit on the underside of said cover plate, said metal coating being on the underside of said cover plate and forming a portion of said printed circuit.
Claim 7
Dependent Claim
28 words
Electrical apparatus according to claim 5 wherein said control section apparatus includes switching elements carried by said cover plate, said switching elements being interconnected through said printed circuit.
Claim 8
Dependent Claim
24 words
Electrical apparatus according to claim 6 wherein said power section includes switching elements, said power section switching elements being interconnected through said printed circuit.
Claim 9
Dependent Claim
90 words
Electrical apparatus according to claim 5 wherein said cover plate has first and second holes each being surrounded by a metal coating bonded to said insulating material, said holes being connected by said printed circuit, a first connector element extending from above into said first hole and a second connector extending from below into said second hole, said first and second connectors being soldered respectively to said metal coating surrounding said first and second holes to provide electrical connections therebetween and provide fluidtight sealing for said first and second holes.
Claim 10
Dependent Claim
61 words
Electrical apparatus according to claim 3 including a plurality of holes each of which has a surrounding metal coating and a connector extending therethrough which is soldered to the surrounding metal in the same manner as said first hole, said holes being arranged in rows, said metal screening plate having single openings each of which surrounds a group of said holes.
Claim 11
Dependent Claim
20 words
Electrical apparatus according to claim 9 including a terminal strip for connecting a group of connectors extending through said holes.
Claim 12
Dependent Claim
19 words
Electrical apparatus according to claim 9 including plug strips attached to some of said connectors extending through said holes.
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) | 1974-08-16 | 1975-02-15 | 1975-08-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-08-16 | 1979-02-15 | 1979-08-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-08-16 | 1983-02-15 | 1983-08-17 | $7700.00 | Window Closed / Lapsed |