Patent US4803590A successfully refreshed from Google Patents.
US4803590A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric switching device
Assignee: Robert Bosch GmbH
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Filing: 1986-03-14
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Granted: 1989-02-07
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Expires: 2006-03-14
Abstract
Abstract An electrical switching device includes a hermetically sealed housing enclosing at least one power switching component mounted on a cooling plate and a plurality of connector parts which are guided out of the housing. In order to eliminate heat generated by the switching component, portions of the connector parts within the housing are embedded in a heat conducting, electrically insulating material which is in contact with the cooling plate such that the heat is abducted via the cooling plate, the heat conducting material and the connector parts by a heat conducting and electrically insulating foil.
Inventors
- 👤 Reinhard Fassel
- 👤 Georg Haubner
- 👤 Hartmut Zobl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 19:05
CPC Classifications
H; H05; H05K; H05K9/00; H05K9/0007; H05K9/0018; H05K1/00; H05K1/02; H05K1/0201; H05K1/0203; H05K7/00; H05K7/20; H05K7/20845; H05K7/20854; H05K2201/00; H05K2201/06; H05K2201/066; H05K2201/10; H05K2201/10007; H05K2201/10166; H05K2201/10189; H05K2201/10431; H05K2201/10439; H05K2201/10454; H05K2201/10507; H05K2201/10522; H05K3/00; H05K3/30; H05K3/32; H05K3/34; H05K3/3447
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
90 words
Switching device including at least one power switching component arranged in a completely insulated housing, comprising at least one heat conducting cooling body arranged in said housing for supporting said power switching component; a plurality of connector parts arranged opposite said cooling body and being fed through said housing; heat conducting, electrically insulating means having an area contact with said cooling body and enclosing portions of said connector parts in said housing to establish a path for abducting out of said housing the heat generated by said power switching component.
Claim 2
Dependent Claim
90 words
Switching device including at least one power switching component arranged in a completely insulated housing, comprising at least one heat conducting cooling body arranged in said housing for supporting said power switching component; a plurality of connector parts arranged opposite said cooling body and being fed through said housing; heat conducting, electrically insulating means having an area contact with said cooling body and enclosing portions of said connector parts in said housing to establish a path for abducting out of said housing the heat generated by said power switching component.
Claim 3
Dependent Claim
24 words
Switching device according to claim 1 wherein a plurality of power switching components is mounted in contact with said at least one cooling body.
Claim 4
Dependent Claim
26 words
Switching device according to claim 1 wherein a thin foil of an electrically insulating material is provided between said cooling body and said power switching component.
Claim 5
Dependent Claim
18 words
Switching device according to claim 1 wherein said heat conducting, electrically insulating means includes a high-frequency shielding material.
Claim 6
Dependent Claim
20 words
Switching device according to claim 4 wherein said heat conducting, electrically insulating means is of a plastic filled with ferrite.
Claim 7
Dependent Claim
19 words
Switching device according to claim 4 wherein said heat conducting, electrically insulating means is of a metallic oxide ceramic.
Claim 8
Dependent Claim
26 words
Switching device according to claim 1 wherein said heat conduction, electrically insulating means includes a thin foil (24) having an area contact with said cooling body.
Claim 9
Dependent Claim
16 words
Switching device according to claim 7 wherein said foil is of a plastic filled with ferrite.
Claim 10
Dependent Claim
15 words
Switching device according to claim 7 wherein said foil is of a metallic oxide ceramic.
Claim 11
Dependent Claim
22 words
Switching device according to claim 1 wherein said cooling body partially surrounds said connector parts to shield the same against high-frequency radiation.
References Cited (Backward Citations)
US2759133A
Cited
US3390226A
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US3549783A
Cited
US3846823A
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US3987344A
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US4266267A
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US4675784A
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US4646203A
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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) | 1992-02-07 | 1992-08-08 | 1993-02-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-02-07 | 1996-08-08 | 1997-02-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-02-07 | 2000-08-08 | 2001-02-07 | $7700.00 | Window Closed / Lapsed |