Patent ID: 11892243
Assignee: DELTA ELECTRONICS, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  H | IPC F

Claim 11:
12. A heat pipe, comprising:
a first pipe including an evaporator, a heat insulator and a condenser which communicate with each other to define a hollow chamber, wherein two ends of the first pipe along an axial direction of the heat pipe are sealed; and
at least a second pipe disposed in the hollow chamber and including an accommodating space and a first capillary structure disposed in one end of the accommodating space closer to the evaporator;
wherein two opposite sides of an outer pipe wall of the second pipe directly abut an inner pipe wall of the first pipe, the first capillary structure is extended from the second pipe to form a second capillary structure between the inner pipe wall of the first pipe and the second pipe in the evaporator, the second capillary structure occupies at least 2/3 volume of the evaporator and is folded up multiple times in the evaporator.