Patent ID: 11957056
Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.
Field: Environmental technology (Chemistry)
Classification: CPC F  H | IPC H

Claim 0:
1. A thermoelectric conversion unit generating electricity based on a temperature difference between a first fluid and a second fluid at higher temperature than the first fluid, the thermoelectric conversion unit comprising:
a pair of first fluid flow path sections through each of which the first fluid flows, the pair of first fluid flow path sections being arranged to face each other;
a second fluid flow path section through which the second fluid flows, the second fluid flow path section being arranged between the pair of first fluid flow path sections;
a pair of thermoelectric modules each arranged between the second fluid flow path section and one of the pair of first fluid flow path sections in a one-to-one relation, the pair of thermoelectric modules converting thermal energy given by the temperature difference between the first fluid and the second fluid to electrical energy;
a convex fin formed in a rod shape and arranged in the second fluid flow path section, the convex fin being connected to one of the pair of thermoelectric modules in a heat-transferable manner and projecting toward the other of the pair of thermoelectric modules; and
a concave fin formed in a rod shape and arranged in the second fluid flow path section, the concave fin being connected to the other of the pair of thermoelectric modules in a heat-transferable manner and projecting toward the one of the pair of thermoelectric modules,
wherein the concave fin includes a recess fitted to the convex fin, and
wherein an outer peripheral surface of the convex fin and an inner peripheral surface of the recess of the concave fin are in contact with each other, and a gap is formed between a tip of the convex fin and a bottom of the recess of the concave fin.