US4636580A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Static converter module with mounting lugs
Assignee: BBC Brown Boveri AG Germany
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Filing: 1985-11-08
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Granted: 1987-01-13
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Expires: 2005-11-08
Abstract
Abstract In this static converter module, which is equipped with thyristors, diodes or power transistors, mounting lugs (4,11) having mounting holes (5,6,12,13) are used for mounting the module on a heat sink. The housing of the module is essentially formed by a frame (1,10) which is open at the top and at the bottom and by a ceramic plate which is inserted into the base part of the frame. For the purpose of fixing the ceramic plate in place, a peripheral indentation (7,15) is provided in the base part of the frame. In order to prevent mechanical stresses in the area of the mounting holes/mounting lugs from being transmitted to the ceramic plate, slits (9) are provided between the frame walls and the mounting holes. As an alternative to this, the peripheral indentation (15) can be provided with steps in such a manner that in the area of the two frame walls provided with the mounting lugs (11) a slot-shaped recess (16) is produced between the ceramic plate and the peripheral indentation (15).
Inventors
- 👤 Arno Neidig
- 👤 Bernd Leukel
- 👤 Hubert Hettmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 10:31
CPC Classifications
H; H10; H10W; H10W78/00; H10W40/00; H10W40/60; H10W40/611
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
198 words
A module for a static converter, comprising a housing including: a top part in the form of a frame being open at the bottom and top defining lateral surfaces, a lower edge and an interior, and mounting lugs formed on said lateral surfaces at a given height, said mounting lugs having mounting holes formed therein for receiving means for mounting the module on a heat sink; and a bottom part in the form of a ceramic plate having a lower surface disposed entirely on the heat sink when mounted, said ceramic plate being at least partially disposed in a peripheral indentation formed in said lower edge in said interior of said frame substantially at said given height; and means for preventing a mechanical stress field from being transmitted directly from the mounting means to said ceramic plate when mounted, said transmission prevention means being in the form of slits separate from said peripheral indentation and said mounting holes, each of said slits being formed in a respective one of said mounting lugs substantially parallel to a respective one of said lateral surfaces between a respective one of said lateral surfaces and a respective one of said mounting holes.
Claim 2
Dependent Claim
198 words
A module for a static converter, comprising a housing including: a top part in the form of a frame being open at the bottom and top defining lateral surfaces, a lower edge and an interior, and mounting lugs formed on said lateral surfaces at a given height, said mounting lugs having mounting holes formed therein for receiving means for mounting the module on a heat sink; and a bottom part in the form of a ceramic plate having a lower surface disposed entirely on the heat sink when mounted, said ceramic plate being at least partially disposed in a peripheral indentation formed in said lower edge in said interior of said frame substantially at said given height; and means for preventing a mechanical stress field from being transmitted directly from the mounting means to said ceramic plate when mounted, said transmission prevention means being in the form of slits separate from said peripheral indentation and said mounting holes, each of said slits being formed in a respective one of said mounting lugs substantially parallel to a respective one of said lateral surfaces between a respective one of said lateral surfaces and a respective one of said mounting holes.
Claim 3
Dependent Claim
244 words
A module for a static converter, comprising a housing including: a top part in the form of a frame having sides and being open at the bottom and top defining lateral surfaces, a lower surface with a lower edge and an interior, and two mounting lugs formed on said lateral surfaces at opposite sides of said frame at a given height, said mounting lugs having a lower surface and having mounting holes formed therein for receiving means for mounting the module on a heat sink; and a bottom part in the form of a ceramic plate having a lower surface disposed entirely on the heat sink when mounted and an upper surface facing said interior of said frame, said ceramic plate being at least partially disposed in a peripheral indentation formed in said lower edge of said frame at said lower surface of said mounting lugs facing said interior of said frame substantially at said given height, said peripheral indentation being perpendicular to said upper surface of said ceramic plate defining an upper surface of said peripheral indentation; and means for preventing a mechanical stress field from being transmitted directly from the mounting means to said ceramic plate when mounted, said transmission prevention means being in the form of a recess formed in said lower surface of said frame separate from said mounting holes and said peripheral indentation between said upper surface of said ceramic plate and said upper surface of said peripheral indentation.
Claim 4
Dependent Claim
244 words
A module for a static converter, comprising a housing including: a top part in the form of a frame having sides and being open at the bottom and top defining lateral surfaces, a lower surface with a lower edge and an interior, and two mounting lugs formed on said lateral surfaces at opposite sides of said frame at a given height, said mounting lugs having a lower surface and having mounting holes formed therein for receiving means for mounting the module on a heat sink; and a bottom part in the form of a ceramic plate having a lower surface disposed entirely on the heat sink when mounted and an upper surface facing said interior of said frame, said ceramic plate being at least partially disposed in a peripheral indentation formed in said lower edge of said frame at said lower surface of said mounting lugs facing said interior of said frame substantially at said given height, said peripheral indentation being perpendicular to said upper surface of said ceramic plate defining an upper surface of said peripheral indentation; and means for preventing a mechanical stress field from being transmitted directly from the mounting means to said ceramic plate when mounted, said transmission prevention means being in the form of a recess formed in said lower surface of said frame separate from said mounting holes and said peripheral indentation between said upper surface of said ceramic plate and said upper surface of said peripheral indentation.
Claim 5
Dependent Claim
23 words
A module according to claim 2, wherein said recess defines a space between said upper surface of said ceramic plate and said frame.
References Cited (Backward Citations)
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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) | 1990-01-12 | 1990-07-14 | 1991-01-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1994-01-12 | 1994-07-14 | 1995-01-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1998-01-12 | 1998-07-14 | 1999-01-13 | $7700.00 | Window Closed / Lapsed |