Abstract: A flexible two-phase conversion heat transfer device includes a main body enclosing a chamber. A working liquid is received in the chamber. A capillary structure body is disposed in the chamber. The main body has at least one bellows section. The bellows section has multiple waved stripes. The waved stripes at least have a waved stripe feature including a waved stripe height or a waved stripe width or a waved stripe pitch between each two adjacent waved stripes. By means of the different waved stripe features, the main body is bendable by an angle ranging from 0-180 degrees without interference between the waved stripes.

Abstract: A flexible heat dissipation device includes an evaporator, a vapor tube, a liquid tube and a condenser. The evaporator has at least one vapor chamber. A capillary structure and a working fluid are received in the vapor chamber. Two ends of the vapor tube is respectively in communication with one end of the evaporator and the condenser. Two ends of the liquid tube are respectively in communication with the evaporator and the condenser, whereby the evaporator, the vapor tube, the condenser and the liquid tube form a loop for the working fluid to flow through. At least one bellows section is disposed on one or both of the vapor tube and the liquid tube. The bellows section has multiple waved stripes. More than one of the heights, widths and pitches of the multiple waved stripes are equal to or unequal to each other.

Abstract: A flexible two-phase conversion heat transfer device includes a main body enclosing a chamber. A working liquid is received in the chamber. A capillary structure body is disposed in the chamber. The main body has at least one bellows section. The bellows section has multiple waved stripes. The waved stripes at least have a waved stripe feature including a waved stripe height or a waved stripe width or a waved stripe pitch between each two adjacent waved stripes. By means of the different waved stripe features, the main body is bendable by an angle ranging from 0-180 degrees without interference between the waved stripes.

Abstract: A flexible heat dissipation device includes an evaporator, a vapor tube, a liquid tube and a condenser. The evaporator has at least one vapor chamber. A capillary structure and a working fluid are received in the vapor chamber. Two ends of the vapor tube is respectively in communication with one end of the evaporator and the condenser. Two ends of the liquid tube are respectively in communication with the evaporator and the condenser, whereby the evaporator, the vapor tube, the condenser and the liquid tube form a loop for the working fluid to flow through. At least one bellows section is disposed on one or both of the vapor tube and the liquid tube. The bellows section has multiple waved stripes. More than one of the heights, widths and pitches of the multiple waved stripes are equal to or unequal to each other.