Patent US3870568A successfully refreshed from Google Patents.
US3870568A
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Heat generator
Assignee: Siemens AG
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Filing: 1974-02-28
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Granted: 1975-03-11
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Expires: 1994-02-28
Abstract
Abstract The invention relates to a heat generator having metal plates which are coupled to a cold heat exchanger in electrically insulating and thermally conducting relation. A bilaterally metallized ceramic plate has a surface facing the thermoelement legs of a thermoelectric component and contacting metal plates which contact the front surfaces of the cold ends of the thermoelement legs. A second metal plate contacts the surface of the ceramic plate facing away from the thermoelement legs. At least one surface of the metal plates contacting the thermoelement legs is of the same material as the second metal plate.
Inventors
- 👤 Gerhard Oesterhelt
- 👤 Josef Winkler
- 👤 Dieter Falkenberg
- 👤 Bucs Eugen Szabo De
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 06:53
CPC Classifications
H; H10; H10N; H10N10/00; H10N10/80; H10N10/81; H10N10/817; H10N10/10; H10N10/13
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
221 words
A HEAT GENERATOR FOR CONVERTING HEAT ENERGY INTO ELECTRICAL ENERGY, COMPRISING A PLURALITY OF THERMOELEMENTS WITH TWO THERMOELEMENT LEGS OF OPPOSITE CONDUCTIVITY TYPE OF GERMANIUM-SILICON ALLOY CONNECTED ELECTRICALLY IN SERIES AND THERMALLY IN PARALLEL, EACH OF SAID THERMOELEMENT LEGS HAVING A HOT END AND A COLD END WITH THE COLD END BEING CONNECTED IN ELECTRICAL INSULATION AND THERMAL CONDUCTIVITY WITH ONE ANOTHER AND WITH A COLD HEAT EXCHANGER, A PAIR OF FIRST METAL LAYERS CONTACTING EACH OF SAID COLD ENDS OF SAID THERMOELEMENTS, ONE OF SAID PAIR OF SAID FIRST METAL LAYERS HAVING ELECTRICAL TERMINALS, RIGID COUPLING MEANS COUPLING SAID PAIR OF FIRST METAL LAYERS TO SAID COLD HEAT EXCHANGER IN ELECTRICALLY INSULATING SAID THERMALLY CONDUCTING RELATION, SAID COUPLING MEANS INCLUDING A CERAMIC PLATE AND A SECOND METAL PLATE, A METAL LAYER ON BOTH SIDES OF SAID CERAMIC PLATE, SAID CERAMIC PLATE HAVING ONE OF ITS METAL LAYER SIDES FACING SAID THERMOELEMENTS AND AFFIXED TO ONE OF SAID PAIR OF FIRST METAL LAYERS, AND SAID SECOND METAL PLATE BRIDGING THE COLD ENDS OF THE LEGS AND AFFIXED TO THE OTHER OF THE METAL LAYER SIDES OF SAID CERAMIC PLATE, SAID SECOND METAL PLATE AND THE PART OF SAID PAIR OF FIRST METAL LAYERS WHICH CONTACTS SAID THERMOELEMENTS BEING OF THE SAME MATERIAL SELECTED FROM THE GROUP CONSISTING OOF TUNGSTEN AND MOLYBDENUM.
Claim 2
Dependent Claim
221 words
A HEAT GENERATOR FOR CONVERTING HEAT ENERGY INTO ELECTRICAL ENERGY, COMPRISING A PLURALITY OF THERMOELEMENTS WITH TWO THERMOELEMENT LEGS OF OPPOSITE CONDUCTIVITY TYPE OF GERMANIUM-SILICON ALLOY CONNECTED ELECTRICALLY IN SERIES AND THERMALLY IN PARALLEL, EACH OF SAID THERMOELEMENT LEGS HAVING A HOT END AND A COLD END WITH THE COLD END BEING CONNECTED IN ELECTRICAL INSULATION AND THERMAL CONDUCTIVITY WITH ONE ANOTHER AND WITH A COLD HEAT EXCHANGER, A PAIR OF FIRST METAL LAYERS CONTACTING EACH OF SAID COLD ENDS OF SAID THERMOELEMENTS, ONE OF SAID PAIR OF SAID FIRST METAL LAYERS HAVING ELECTRICAL TERMINALS, RIGID COUPLING MEANS COUPLING SAID PAIR OF FIRST METAL LAYERS TO SAID COLD HEAT EXCHANGER IN ELECTRICALLY INSULATING SAID THERMALLY CONDUCTING RELATION, SAID COUPLING MEANS INCLUDING A CERAMIC PLATE AND A SECOND METAL PLATE, A METAL LAYER ON BOTH SIDES OF SAID CERAMIC PLATE, SAID CERAMIC PLATE HAVING ONE OF ITS METAL LAYER SIDES FACING SAID THERMOELEMENTS AND AFFIXED TO ONE OF SAID PAIR OF FIRST METAL LAYERS, AND SAID SECOND METAL PLATE BRIDGING THE COLD ENDS OF THE LEGS AND AFFIXED TO THE OTHER OF THE METAL LAYER SIDES OF SAID CERAMIC PLATE, SAID SECOND METAL PLATE AND THE PART OF SAID PAIR OF FIRST METAL LAYERS WHICH CONTACTS SAID THERMOELEMENTS BEING OF THE SAME MATERIAL SELECTED FROM THE GROUP CONSISTING OOF TUNGSTEN AND MOLYBDENUM.
Claim 3
Dependent Claim
221 words
A heat generator for converting heat energy into electrical energy, comprising a plurality of thermoelements with two thermoelement legs of opposite conductivity type of germanium-silicon alloy connected electrically in series and thermally in parallel, each of said thermoelement legs having a hot end and a cold end with the cold end being connected in electrical insulation and thermal conductivity with one another and with a cold heat exchanger, a pair of first metal layers contacting each of said cold ends of said thermoelements, one of said pair of said first metal layers having electrical terminals, rigid coupling means coupling said pair of first metal layers to said cold heat exchanger in electrically insulating and thermally conducting relation, said coupling means including a ceramic plate and a second metal plate, a metal layer on both sides of said ceramic plate, said ceramic plate having one of its metal layer sides facing said thermoelements and affixed to one of said pair of first metal layers, and said second metal plate bridging the cold ends of the legs and affixed to the other of the metal layer sides of said ceramiC plate, said second metal plate and the part of said pair of first metal layers which contacts said thermoelements being of the same material selected from the group consisting of tungsten and molybdenum.
Claim 4
Dependent Claim
221 words
A heat generator for converting heat energy into electrical energy, comprising a plurality of thermoelements with two thermoelement legs of opposite conductivity type of germanium-silicon alloy connected electrically in series and thermally in parallel, each of said thermoelement legs having a hot end and a cold end with the cold end being connected in electrical insulation and thermal conductivity with one another and with a cold heat exchanger, a pair of first metal layers contacting each of said cold ends of said thermoelements, one of said pair of said first metal layers having electrical terminals, rigid coupling means coupling said pair of first metal layers to said cold heat exchanger in electrically insulating and thermally conducting relation, said coupling means including a ceramic plate and a second metal plate, a metal layer on both sides of said ceramic plate, said ceramic plate having one of its metal layer sides facing said thermoelements and affixed to one of said pair of first metal layers, and said second metal plate bridging the cold ends of the legs and affixed to the other of the metal layer sides of said ceramiC plate, said second metal plate and the part of said pair of first metal layers which contacts said thermoelements being of the same material selected from the group consisting of tungsten and molybdenum.
Claim 5
Dependent Claim
72 words
A heat generator as claimed in claim 1, wherein said pair of first metal layers comprise two layers in juxtaposed relation with one of the two layers contacting the thermoelements and the other of said two layers having said electrical contacts and contacting the ceramic plate of said coupling means, the other of said two layers comprising metal having better electrical conducting characteristics than that of the one of said two layers.
Claim 6
Dependent Claim
29 words
A heat generator as claimed in claim 1, wherein both of said legs are affixed to said cold heat exchanger by means of a single and common fastening connection.
Claim 7
Dependent Claim
39 words
A heat exchanger as claimed in claim 2 wherein said other of said two plates of said pair of first metal layers is made from a metal selected from the group consisting of silver, copper, gold, platinum and aluminum.
Claim 8
Dependent Claim
33 words
A heat generator as claimed in claim 1 wherein a nonconductive strip interrupts the metallization of the surface of the ceramic plate of said coupling means facing the thermoelements of said thermoelectric component.
References Cited (Backward Citations)
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US3543842A
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US3510363A
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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) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |