Patent US5075822A successfully refreshed from Google Patents.
US5075822A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Housing for installation in motor vehicles
Assignee: Telefunken Electronic GmbH
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Filing: 1990-02-01
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Granted: 1991-12-24
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Expires: 2010-02-01
Abstract
Abstract The invention relates to a housing for installation in motor vehicles to hold electronic components arranged on a PCB. In accordance with the invention, the housing comprises a trough-shaped housing section and a metal lid. In addition, several heat sinks are arranged on the PCB, with the PCB being firmly connected exclusively to these heat sinks. Here, the heat sinks are designed such that they are in direct contact with both the housing section and the metal lid.
Inventors
- 👤 Heinz Baumler
- 👤 Richard Hoffmann
- 👤 Klaus Schirmer
- 👤 Otto Zeides
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 11:15
CPC Classifications
H; H05; H05K; H05K7/00; H05K7/20; H05K7/2039; H05K7/20436; H05K7/2049; H05K7/20845; H05K7/20854
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
79 words
A housing for installation in motor vehicles and having therein electronic components arranged on a PCB, wherein said housing comprises a trough-shaped single member housing section and a metal lid contacting and attached to said housing section, wherein a plurality of heat sinks are arranged within said housing section, wherein said PCB is mechanically connected exclusively to said heat sinks, and wherein said heat sinks are in direct contact with both said housing section and with said metal lid.
Claim 2
Dependent Claim
79 words
A housing for installation in motor vehicles and having therein electronic components arranged on a PCB, wherein said housing comprises a trough-shaped single member housing section and a metal lid contacting and attached to said housing section, wherein a plurality of heat sinks are arranged within said housing section, wherein said PCB is mechanically connected exclusively to said heat sinks, and wherein said heat sinks are in direct contact with both said housing section and with said metal lid.
Claim 3
Dependent Claim
46 words
A housing according to claim 1, wherein the heat sinks each have at least one hole, and wherein both the metal lid and the housing section are firmly connected to the heat sinks using a respective single screw extending through each said at least one hole.
Claim 4
Dependent Claim
39 words
A housing according to claim 2, wherein the PCB is rectangular, wherein two said heat sinks are provided, and wherein a respective heat sink extends on each of the opposite short sides over the entire width of said PCB.
Claim 5
Dependent Claim
18 words
A housing according to claim 3, wherein each said heat sink is rod-shaped with an approximately rectangular cross-section.
Claim 6
Dependent Claim
53 words
A housing according to claim 3, wherein each said heat sink is fastened to said PCB at two locations adjacent opposite sides of said PCB, and wherein the surface facing said PCB of each said heat sink between said two locations is recessed, whereby each said heat sink can extend underneath said PCB.
Claim 7
Dependent Claim
38 words
A housing according to claim 3 wherein the two heat sinks have projections at the edges of the long side of the PCB, and wherein each projection contains a respective said hole for receiving a respective said screw.
Claim 8
Dependent Claim
13 words
A housing according to claim 1, wherein the trough-shaped housing section is plastic.
Claim 9
Dependent Claim
13 words
A housing according to claim 1, wherein the metal lid comprises chromatized aluminum.
Claim 10
Dependent Claim
41 words
A housing according to claim 4 wherein said electronic components include at least one power transistor, and wherein said power transistor is mechanically fastened by a clip to a surface of a said heat sink which extends transverse to said PCB.
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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) | 1994-12-23 | 1995-06-24 | 1995-12-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-23 | 1999-06-24 | 1999-12-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-23 | 2003-06-24 | 2003-12-24 | $7700.00 | Window Closed / Lapsed |