Heat exchanger

A heat exchanger, comprising:

• a laminated body including a plurality of plates, a first flow path for a first fluid, and a second flow path for a second fluid, the first flow path and the second flow path mutually formed in a lamination direction via lamination of the plurality of plates;
• a bottomed cylindrical case housing the laminated body, the bottomed cylindrical case including an opening disposed on one side of the laminated body;
• and
• a base plate arranged on a side of the opening of the bottomed cylindrical case;
• wherein the bottomed cylindrical case includes:
• a side wall part covering a side surface of the laminated body;
• a top face part disposed on a side of the bottomed cylindrical case facing the laminated body;
• a sloped surface part contiguous to the side wall part and to the top face part, the sloped surface part extending at an inclination relative to the side wall part;
• and
• an inlet and/or an outlet for passage of the first fluid, the inlet and/or the outlet disposed on the sloped surface part.