Patent US4549039A successfully refreshed from Google Patents.
Patent US4023616A successfully refreshed from Google Patents.
US4023616A
Expired / Lapsed
US
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Thyristor cooling arrangement
Assignee: Siemens AG
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Filing: 1975-04-07
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Granted: 1977-05-17
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Expires: 1995-04-07
Abstract
Abstract In a liquid cooled thyristor column in which disk thyristors are stacked along with heat sinks with the disk thyristors and heat sinks held elastically together each heat sink is equipped with a laterally projecting heat pipe having its free end emersed in a coolant line, with the free ends of the heat pipes secured to the coolant lines by means of a membrane. Each heat pipe includes an intermediate section having electrical insulating material and a tube section of elastic material adjacent the heat sink thereby permitting impure cooling liquids to be used.
Inventors
- 👤 Friedrich Scherbaum
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 21:13
CPC Classifications
F; F28; F28D; F28D15/00; F28D15/02; H; H10; H10W; H10W40/00; H10W40/40; H10W40/47; H10W40/70; H10W40/73; H10W90/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
106 words
In a liquid cooled thyristor column in which a plurality of disk thyristors are stacked and clamped in an electrically conducting manner between heat sinks such that each thyristor has a heat sink on each side thereof, the heat sinks also being used for conducting current, the improvement comprising: a. a heat pipe inserted through each heat sink and projecting therefrom, each heat pipe including an intermediate section of electrically insulating material and an elastic section between the electrically insulating intermediate section and the heat sink; b. a liquid coolant line; and c. membranes coupling the free end of each heat pipe to said coolant line.
Claim 2
Dependent Claim
106 words
In a liquid cooled thyristor column in which a plurality of disk thyristors are stacked and clamped in an electrically conducting manner between heat sinks such that each thyristor has a heat sink on each side thereof, the heat sinks also being used for conducting current, the improvement comprising: a. a heat pipe inserted through each heat sink and projecting therefrom, each heat pipe including an intermediate section of electrically insulating material and an elastic section between the electrically insulating intermediate section and the heat sink; b. a liquid coolant line; and c. membranes coupling the free end of each heat pipe to said coolant line.
Claim 3
Dependent Claim
18 words
A liquid cooled thyristor column according to claim 1 wherein said membrane is a tube of elastic material.
Claim 4
Dependent Claim
16 words
A liquid cooled thyristor column according to claim 2 wherein said membrane is a corrugated tube.
Claim 5
Dependent Claim
23 words
A liquid cooled thyristor column according to claim 1 wherein said tube section of elastic material is made of a self-supporting elastic material.
Claim 6
Dependent Claim
17 words
A liquid cooled thyristor column according to claim 4 wherein said tube section is a corrugated tube.
Claim 7
Dependent Claim
21 words
A liquid cooled thyristor column according to claim 1 in which all of said heat pipes lie essentially in one plane.
Claim 8
Dependent Claim
21 words
A liquid cooled thyristor column according to claim 1 wherein all of said heat pipes are immersed in said coolant line.
References Cited (Backward Citations)
GB791491A
Cited
US3004196A
Cited
US3204157A
Cited
US3653433A
Cited
US3703668A
Cited
US3792318A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-05-16 | 1980-11-15 | 1981-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-05-16 | 1984-11-15 | 1985-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-05-16 | 1988-11-15 | 1989-05-17 | $7700.00 | Window Closed / Lapsed |