US4614227A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Cooling body for the liquid cooling of high-power semiconductor components
Assignee: Alstom Transportation Germany GmbH
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Filing: 1984-10-15
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Granted: 1986-09-30
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Expires: 2004-10-15
Abstract
Abstract In a cooling body (1) which has, in the semiconductor supporting surfaces illustrated, cooling slits (3) which are connected via two connecting channels (4) to a collecting channel (7) for the supply of a cooling liquid, for example oil, cooling elements (9) are provided at the edge to improve the cooling effect. These cooling elements can be designed as cooling ribs, cooling fingers or cooling needles. The cooling liquid flows out of the cooling slits (3) at an angle (α) of preferably 60° to 70°, so that it flows over a relatively long distance along the outer edge of the cooling body (1) and between the cooling elements (9) of the latter and thereby dissipates heat from the cooling body and from the cooling elements. The cooling slits can extend radially, widening outwards, or in serpentine or involute form or spirally and can have a rectangular or triangular or semi-circular or trapezoidal cross-section.
Inventors
- 👤 Xaver Vogel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 12:59
CPC Classifications
H; H10; H10W; H10W40/00; H10W40/40; H10W40/47
Claims Analysis
Total Claims: 34
Claim 1
Independent Claim
213 words
A cooling body for the liquid cooling of at least one high-power semiconductor component, said cooling body having: (a) at least one semi-conductor supporting surface; (b) a plurality of cooling elements located at the edge of said cooling body; (c) a collecting channel for cooling liquid formed in said cooling body, said collecting channel having an upstream end and a downstream end, the downstream end of said collecting channel being in fluid communication with said at least one supporting surface; and (d) at least one cooling slit formed in said semi-conductor supporting surface, said at least one cooling slit having an upstream end and a downstream end, the upstream end of said at least one cooling slit being in fluid communication with the downstream end of said collecting channel and the downstream end of said at least one cooling slit forming a free liquid outflow orifice adjacent said at least one semi-conductor supporting surface, the outflow angle (α) of the downstream end of said at least one cooling slit being in the range from 40° to 90°, said outflow angle (α) being the angle between a radial axis (A) in said at least one semi-conductor supporting surface and the axis of said at least one cooling slit at said free liquid outflow orifice.
Claim 2
Dependent Claim
213 words
A cooling body for the liquid cooling of at least one high-power semiconductor component, said cooling body having: (a) at least one semi-conductor supporting surface; (b) a plurality of cooling elements located at the edge of said cooling body; (c) a collecting channel for cooling liquid formed in said cooling body, said collecting channel having an upstream end and a downstream end, the downstream end of said collecting channel being in fluid communication with said at least one supporting surface; and (d) at least one cooling slit formed in said semi-conductor supporting surface, said at least one cooling slit having an upstream end and a downstream end, the upstream end of said at least one cooling slit being in fluid communication with the downstream end of said collecting channel and the downstream end of said at least one cooling slit forming a free liquid outflow orifice adjacent said at least one semi-conductor supporting surface, the outflow angle (α) of the downstream end of said at least one cooling slit being in the range from 40° to 90°, said outflow angle (α) being the angle between a radial axis (A) in said at least one semi-conductor supporting surface and the axis of said at least one cooling slit at said free liquid outflow orifice.
Claim 3
Dependent Claim
15 words
A cooling body as claimed in claim 1, wherein said cooling elements are cooling ribs.
Claim 4
Dependent Claim
19 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit has a rectangular profile.
Claim 5
Dependent Claim
22 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit is made at least in portions serpentine.
Claim 6
Dependent Claim
25 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit has a profile which widens outwards in a radial direction.
Claim 7
Dependent Claim
20 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit has recesses at its edges.
Claim 8
Dependent Claim
13 words
A cooling body as claimed in claim 6, wherein said recesses are semi-circular.
Claim 9
Dependent Claim
11 words
A cooling body as claimed in claim 1, which is disc-shaped.
Claim 10
Dependent Claim
17 words
A cooling body as claimed in claim 1, wherein said plurality of cooling elements are cooling fingers.
Claim 11
Dependent Claim
17 words
A cooling body as claimed in claim 1, wherein said plurality of cooling elements are cooling needles.
Claim 12
Dependent Claim
19 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit has a triangular profile.
Claim 13
Dependent Claim
19 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit has a semi-circular profile.
Claim 14
Dependent Claim
19 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit has a trapezoidal profile.
Claim 15
Dependent Claim
21 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit is at least in portions involute.
Claim 16
Dependent Claim
21 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit is at least in portions spiral.
Claim 17
Dependent Claim
22 words
A cooling body as claimed in claim 1, wherein said outflow angle (α) is in the range of from 60° to 70°.
Claim 18
Dependent Claim
47 words
A cooling body as claimed in claim 1, wherein turbulence-creating baffles project into said at least one cooling slit, said turbulence-creating baffles being sized, shaped, and positioned to produce turbulence of the cooling liquid in said at least one cooling slit during use of said cooling body.
Claim 19
Dependent Claim
14 words
A cooling body as claimed in claim 17, wherein said turbulence-creating baffles are conical.
Claim 20
Dependent Claim
13 words
A cooling body as claimed in claim 6, wherein said recesses are triangular.
Claim 21
Dependent Claim
13 words
A cooling body as claimed in claim 6, wherein said recesses are rectangular.
Claim 22
Dependent Claim
14 words
A cooling body as claimed in claim 17, wherein said turbulence-creating baffles are cylindrical.
Claim 23
Dependent Claim
14 words
A cooling body as claimed in claim 17, wherein said turbulence-creating baffles are needle-shaped.
Claim 24
Dependent Claim
14 words
A cooling body as claimed in claim 17, wherein said turbulence-creating baffles are pyramidal.
Claim 25
Dependent Claim
14 words
A cooling body as claimed in claim 17, wherein said turbulence-creating baffles are prism-shaped.
Claim 26
Dependent Claim
14 words
A cooling body as claimed in claim 17, wherein said turbulence-creating baffles are tetrahedral.
Claim 27
Dependent Claim
11 words
A cooling body as claimed in claim 1, which is cylindrical.
Claim 28
Dependent Claim
48 words
A cooling body as claimed in claim 1, wherein said at least one cooling slit is sized, shaped, and positioned to enlarge the cooling area of the cooling device without significantly increasing the rate of heat flow per unit of area or greatly extending the heat flow paths.
Claim 29
Dependent Claim
20 words
A cooling body as claimed in claim 27, wherein said at least one cooling slit has recesses at its edges.
Claim 30
Dependent Claim
47 words
A cooling body as claimed in claim 27, wherein turbulence-creating baffles project into said at least one cooling slit, said turbulence-creating baffles being sized, shaped, and positioned to produce turbulence of the cooling liquid in said at least one cooling slit during use of said cooling body.
Claim 31
Dependent Claim
25 words
A cooling body as claimed in claim 27, wherein said at least one cooling slit has a profile which widens outwards in a radial direction.
Claim 32
Dependent Claim
25 words
A cooling body as claimed in claim 29, wherein said at least one cooling slit has a profile which widens outwards in a radial direction.
Claim 33
Dependent Claim
22 words
A cooling body as claimed in claim 27, wherein said outflow angle (α) is in the range of from 60° to 70°.
Claim 34
Dependent Claim
25 words
A cooling body as claimed in claim 28, wherein said at least one cooling slit has a profile which widens outwards in a radial direction.
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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) | 1989-09-29 | 1990-03-31 | 1990-09-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-09-29 | 1994-03-31 | 1994-09-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-09-29 | 1998-03-31 | 1998-09-30 | $7700.00 | Window Closed / Lapsed |