Thermoelectric conversion module, method for producing thermoelectric conversion module, and heat-conductive substrate

Abstract

The present invention addresses the problem of providing: a thermoelectric conversion module that is highly producible via the so-called roll-to-roll method; a method for producing this thermoelectricconversion module; and a heat-conductive substrate to be used in the thermoelectric conversion module or the like. The problem is solved by providing a thermoelectric conversion module which has: a longitudinally oriented support body that is flexible and insulative; a plurality of metal layers formed on one surface of the support body with an interval interposed therebetween in the lengthwise direction of the support body; a plurality of thermoelectric conversion layers formed on the same surface of the support body as the metal layers, with an interval interposed therebetween in the lengthwise direction of the support body; and a connecting electrode for connecting the thermoelectric conversion layers that are adjacent to one another in the lengthwise direction of the support body. Themetal layers have low-rigidity sections exhibiting a lower rigidity than the other regions and oriented in parallel with the widthwise direction of the support body. The low-rigidity sections are positioned at a fixed interval from one another. Furthermore, the low-rigidity sections of the metal layers are alternately folded upward and folded downward in the lengthwise direction.

Description

technical field [0001] The present invention relates to a thermoelectric conversion module with good productivity, a method for manufacturing the thermoelectric conversion module, and a thermally conductive substrate used in the thermoelectric conversion module and the like. Background technique [0002] A thermoelectric conversion material capable of mutually converting thermal energy and electrical energy is used in a thermoelectric conversion element such as a power generation element or a Peltier element that generates electricity by heat. [0003] The thermoelectric conversion element has an advantage of being able to directly convert thermal energy into electricity, and does not require moving parts or the like. Therefore, a thermoelectric conversion module (power generation device) in which a plurality of thermoelectric conversion elements are connected can easily obtain electric power without running costs by installing, for example, a calciner or a place where heat ...

AI Technical Summary

Problems solved by technology

[0007] The problem with conventional thermoelectric conversion modules is that it takes a lot of work to manufacture multiple thermoelectric conversion layers connected in series

In addition, due to the influence of thermal strain caused by the difference in thermal expansion coefficient, the change of thermal strain occurs repeatedly, and fatigue phenomenon of the interface is also prone to occur.

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