Sintered heat tube and semiconductor cooling refrigerator provided with same

A semiconductor cooling refrigerator, comprising an inner tank, a semiconductor cooling plate and a heat exchanger, wherein the heat exchanger comprises multiple heat tubes, each heat tube comprises:

• a main tube segment having closed ends;
• and at least one manifold tube segment extending from one or more portions of one side of the main tube segment, wherein a work chamber of each of said at least one manifold tube segment communicates with that of the main tube segment and a work liquid flowing in the work chamber of the each of said at least one manifold tube segment and the work chamber of the main tube segment;
• a part or all of the main tube segment of the each heat tube is thermally connected to a hot or cold end of the semiconductor cooling plate;
• and
• the each of said at least one manifold tube segment of the each heat tube is configured to radiate heat to ambient air or to transfer cold to a storage compartment of the inner tank;
• wherein the main tube segment comprises a first straight tube portion, and a second straight tube portion which extends from one end of the first straight tube portion and perpendicularly thereto and having a closed tip end;
• a starting end of the each of said at least one manifold tube segment is located on the first straight tube portion;
• a projection of the each of said at least one manifold tube segment in a plane perpendicular to the first straight tube portion overlaps with that of the second straight tube portion in the plane;
• wherein the main tube segment further comprises:
• a third straight tube portion having a closed tip end and which is arranged to be parallel with the first straight tube portion;
• and
• a connecting straight tube portion connected between the first and third straight tube portions with an angle between 100 degrees and 170 degrees relative to the first and third straight tube portions respectively;
• wherein the first, third and connecting straight tube portions are located in a same plane which is perpendicular to the second straight tube portion.