Heat exchanger for temperature control

A heat exchanger for a temperature control comprising:

• a laminate constitution including first and second heat exchanging boards each with a plate constitution and a heating board superposed alternately in a height direction, wherein said first heat exchanging board has a construction such that a flowing path defining board, in which a flowing path with a labyrinth construction is formed, is covered by a folded thin shell;
• said flowing path defining board defines said flow path with the labyrinth construction by layering more than two thin sheets having many openings so that one opening of respective thin sheets, which are adjacent each other, can be overlapped in a part with two openings of other thin sheet, which are adjacent each other and form said flowing path with the labyrinth construction;
• and said shell has an inflow hole into which the fluid flows and an outflow hole from which a fluid flows out passing through said flowing path with the labyrinth construction, the first heat exchanging board having a first end protruding past the second heat exchanging board in a length direction that is perpendicular to the height direction, and the second heat exchanging board having a second end protruding past the first heat exchanging board in the length direction, the first heat exchanging board having a first inflow header and a first outflow header disposed adjacent each other on the first side, and the second heat exchanging board having a second inflow header and a second outflow header disposed adjacent each other on the second side, the first inflow and outflow headers each including an opening that extends along the length direction and intersects with a first pathway extending along the height direction to move fluid through the first heat exchanging board, and the second inflow and outflow headers each including an opening that extends along the length direction and intersects with a second pathway extending along the height direction to move fluid through the second heat exchanging board, wherein said shell is defined such that a periphery of a thin metal sheet is sealed by curling an edge of the sheet.