Three-dimensional heat exchanger

A three-dimensional heat exchanger, comprising:

• a first thermally conductive casing;
• a second thermally conductive casing, disposed on the first thermally conductive casing, wherein the first thermally conductive casing and the second thermally conductive casing together form a liquid-tight chamber, the second thermally conductive casing comprises a bottom plate, a thermally conductive protrusion structure, and an annular side wall, the thermally conductive protrusion structure protrudes from the bottom plate toward a direction away from the first thermally conductive casing, the bottom plate has a first inner surface, the thermally conductive protrusion structure has a second inner surface, the annular side wall is connected to a periphery of the bottom plate and has a third inner surface, and the first inner surface and the second inner surface face the first thermally conductive casing;
• at least one thermally conductive structure, located in the liquid-tight chamber and disposed on the thermally conductive protrusion structure, wherein the at least one thermally conductive structure has a top surface, and the top surface faces the first thermally conductive casing;
• a plurality of first supporting structures and a plurality of second supporting structures, the plurality of first supporting structures protrude from the first inner surface of the bottom plate, and the plurality of second supporting structures protrude from the second inner surface of the thermally conductive protrusion structure;
• a first capillary structure disposed on the at least one thermally conductive structure;
• a second capillary structure disposed on the first inner surface of the bottom plate and the second inner surface of the thermally conductive protrusion structure;
• at least one third capillary structure disposed on the second capillary structure and the first inner surface of the bottom plate, the at least one third capillary structure has a strip shape and disposed in a direction from the thermally conductive protrusion structure towards a corner of the second thermally conductive casing;
• a fourth capillary structure and a plurality of fifth capillary structures;
• and
• at least one first heat pipe and at least one second heat pipe, disposed through the first thermally conductive casing, the at least one first heat pipe has a first pipe inner surface, the at least one second heat pipe has a second pipe inner surface, wherein the at least one first heat pipe contacts the first inner surface, the at least one second heat pipe contacts the second inner surface, an end of the at least one first heat pipe and an end of the at least one second heat pipe each have an opening and at least one notch, the opening is in fluid communication with the liquid-tight chamber, the at least one notch is located at the opening, the at least one notch is in fluid communication with the opening, the at least one notch of the at least one first heat pipe and the at least one notch of the at least one second heat pipe each have a bottom surface, the two bottom surfaces of the at least one first heat pipe and the at least one second heat pipe face the first inner surface and the second surface, respectively, the fourth capillary structure is stacked on the plurality of second supporting structures, the plurality of fifth capillary structures are stacked on the first pipe inner surface of the at least one first heat pipe and the second pipe inner surface of the at least one second heat pipe, respectively and a distance between each of the two bottom surfaces of the at least one first heat pipe and the at least one second heat pipe and the second inner surface is larger than a distance between the top surface and the second inner surface.