Thermoelectric conversion element and method of manufacturing the same, and thermoelectric conversion device using the element
First Claim
1. A thermoelectric conversion element comprising:
- an insulating layer, striped p-type thermoelectric conversion parts arranged on a first surface of the insulating layer, and striped n-type thermoelectric conversion parts arranged on a second surface of the insulating layer wherein said second surface is opposite said first surface; and
the thermoelectric conversion element having overlapping portions at which the striped p-type thermoelectric conversion parts and the striped n-type thermoelectric conversion parts intersect when viewed along a thickness direction of the insulating layer;
wherein, at one or more of the overlapping portions,a) a first p-type thermoelectric conversion part of the striped p-type thermoelectric conversion parts and a first n-type thermoelectric conversion part of the striped n-type thermoelectric conversion parts are electrically connected via a first conducting portion arranged within the insulating layer;
b) a second p-type thermoelectric conversion part of the striped p-type thermoelectric conversion parts and a second n-type thermoelectric conversion part of the striped n-type thermoelectric conversion parts are electrically connected via a second conducting portion arranged within the insulating layer;
c) the first p-type thermoelectric conversion part and the second p-type thermoelectric conversion part are adjacent to each other with the overlapping portion interposed therebetween and are cut apart from each other in the overlapping portion;
d) the first n-type thermoelectric conversion part and the second n-type thermoelectric conversion part are adjacent to each other with the overlapping portion interposed therebetween and are cut apart from each other in the overlapping portion; and
e) the first conducting portion and the second conducting portion are electrically isolated.
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Abstract
The present invention provides a thermoelectric conversion element that has high efficiency even at reduced thickness. In this thermoelectric conversion element, striped p-type thermoelectric conversion parts are arranged on one surface of an insulating layer, and striped n-type thermoelectric conversion parts are arranged on the other surface. The two sets of stripes form overlapped portions. At one or more of the overlapped portions, a first p-type thermoelectric conversion part and a first n-type thermoelectric conversion part are electrically connected via a first conducting portion arranged within the insulating layer, a second p-type thermoelectric conversion part and a second n-type thermoelectric conversion part are electrically connected via a second conducting portion arranged within the insulating layer, and the first conducting portion and the second conducting portion are electrically isolated. The element of the present invention provides two junctions in a region where a conventional element would provide only one junction.
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Citations
27 Claims
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1. A thermoelectric conversion element comprising:
- an insulating layer, striped p-type thermoelectric conversion parts arranged on a first surface of the insulating layer, and striped n-type thermoelectric conversion parts arranged on a second surface of the insulating layer wherein said second surface is opposite said first surface; and
the thermoelectric conversion element having overlapping portions at which the striped p-type thermoelectric conversion parts and the striped n-type thermoelectric conversion parts intersect when viewed along a thickness direction of the insulating layer; wherein, at one or more of the overlapping portions, a) a first p-type thermoelectric conversion part of the striped p-type thermoelectric conversion parts and a first n-type thermoelectric conversion part of the striped n-type thermoelectric conversion parts are electrically connected via a first conducting portion arranged within the insulating layer; b) a second p-type thermoelectric conversion part of the striped p-type thermoelectric conversion parts and a second n-type thermoelectric conversion part of the striped n-type thermoelectric conversion parts are electrically connected via a second conducting portion arranged within the insulating layer; c) the first p-type thermoelectric conversion part and the second p-type thermoelectric conversion part are adjacent to each other with the overlapping portion interposed therebetween and are cut apart from each other in the overlapping portion; d) the first n-type thermoelectric conversion part and the second n-type thermoelectric conversion part are adjacent to each other with the overlapping portion interposed therebetween and are cut apart from each other in the overlapping portion; and e) the first conducting portion and the second conducting portion are electrically isolated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
- an insulating layer, striped p-type thermoelectric conversion parts arranged on a first surface of the insulating layer, and striped n-type thermoelectric conversion parts arranged on a second surface of the insulating layer wherein said second surface is opposite said first surface; and
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13. A method of manufacturing a thermoelectric conversion element, comprising:
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producing a layered material in which p-type stripes composed of a p-type thermoelectric conversion material, an insulating layer, and n-type stripes composed of an n-type thermoelectric conversion material are arranged in that order when viewed along a thickness direction of the insulating layer;
the p-type stripes and the n-type stripes intersect with each other to form overlapping portions; and
the p-type stripes and the n-type stripes are electrically connected at the overlapping portions via conducting portions provided within the insulating layer; andforming p-type thermoelectric conversion parts and n-type thermoelectric conversion parts by cutting apart the p-type stripes and the n-type stripes; wherein the p-type stripes and the n-type stripes are cut apart at one or more of the overlapped portions in such a manner that; f) a first p-type thermoelectric conversion part and a second p-type thermoelectric conversion part that are cut apart from each other are formed from the p-type stripes; g) a first n-type thermoelectric conversion parts and a second n-type thermoelectric conversion parts that are cut apart from each other are formed from the n-type stripes; h) the first p-type thermoelectric conversion part and the first n-type thermoelectric conversion part are electrically connected via a first conducting portion that is arranged within the insulating layer as one of the conducting portions; and i) the second p-type thermoelectric conversion part and the second n-type thermoelectric conversion part are electrically connected via a second conducting portion that is arranged within the insulating layer as one of the conducting portions and is electrically isolated from the first conducting portion. - View Dependent Claims (14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27)
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Specification