Heat transport device and method for manufacturing same

A heat transport device comprising:

• first sets of flow passages for flowing a first fluid, the first sets of flow passages being arranged in a first matrix along a horizontal direction and a vertical direction, each of the first sets of flow passages extending along a first direction, the first sets of flow passages having first, second, and third passages, the first, second, and third passages being stacked along the vertical direction directly adjacent to each other in this order, each of the first, second, and third passages having alternating recesses and protrusions along the first direction;
• second sets of flow passages for flowing a second fluid, the second sets of flow passages being arranged in a second matrix along the horizontal direction and the vertical direction, each of the second sets of flow passages extending along a second direction crossing the first direction;
• and
• the heat transport device having a cross-section A satisfying Requirement 1, Requirement 2, and Requirement 3,
• wherein Requirement 1 that the cross-section A is a vertical cross-section perpendicular to the second direction,
• Requirement 2 is that in the cross-section A:
• passage holes of the second sets of flow passages are arranged in a third matrix to form hole rows along the horizontal direction, the hole rows have first and second hole rows, the first passage and the second passage sandwich the first hole row along the vertical direction, the second passage and the third passage sandwich the second hole row along the vertical direction;
• a first vertical line passes through a first peak apex of the first passage, a first valley apex of the second passage, and a second peak apex of the third passage;
• a second vertical line passes through a second valley apex of the first passage, a third peak apex of the second passage, and a third valley apex of the third passage;
• the first valley apex and the second peak apex contact each other, and the second valley apex and the third peak apex contact each other;
• the first peak apex is directly adjacent to the second valley apex in the horizontal direction, the first valley apex is directly adjacent to the third peak apex in the horizontal direction, and the second peak apex is directly adjacent to the third valley apex;
• and
• the first vertical line only passes through the passage hole of the first hole row among the first and second hole rows, and the second vertical line only passes through the passage hole of the second hole row among the first and second hole rows, and
• Requirement 3 is that:
• the first sets of flow passages are not fluidly connected to the second sets of flow passages;
• and
• in the cross-section A,
• the second fluid independently flows in the passage holes of the first and second hole rows, and
• every passage hole of the first and second hole rows of the second sets of flow passages is fluidly separated from each other by the first, second, and third passages of the first sets of flow passages.