Abstract: An impeller blade structure includes a main body having a first through opening communicating a first side with an opposite second side of the main body. The main body is formed on the first side with angularly spaced block-like blades, which respectively include a first end contacting or not contacting with the first through opening, an opposite second end, and a first coupling section. Any two adjacent blades together define between them a passage. When a virtual line tangentially passes through a point on a circumference of the main body that is corresponding to one radially outer end of the blade, an acute included angle will be defined between the virtual line and the blade. With these arrangements, the blades produce less noise and are more durable for use when the impeller blade structure rotates. A rotor assembly including the impeller blade structure is also disclosed.

Abstract: An impeller blade structure includes a main body having a first through opening communicating a first side with an opposite second side of the main body. The main body is formed on the first side with angularly spaced block-like blades, which respectively include a first end contacting or not contacting with the first through opening, an opposite second end, and a first coupling section. Any two adjacent blades together define between them a passage. When a virtual line tangentially passes through a point on a circumference of the main body that is corresponding to one radially outer end of the blade, an acute included angle will be defined between the virtual line and the blade. With these arrangements, the blades produce less noise and are more durable for use when the impeller blade structure rotates. A rotor assembly including the impeller blade structure is also disclosed.

Abstract: A bendable water-cooling device includes: a pump unit having a pump case and a driver. The pump case has a pump chamber, a first inlet and a first outlet. The pump case is formed with a first pivotal connection section on the same side as the first outlet; a heat exchange unit having a liquid reservoir case and a heat dissipation member, the liquid reservoir case having a heat exchange chamber, a second inlet and a second outlet, the liquid reservoir case being formed with a second pivotal connection section on the same side as the second inlet; and a pivot unit having a first mating section and a second mating section respectively pivotally connected with the first and second pivotal connection sections. The pump unit and the heat exchange unit are bendable around the pivot unit from a horizontal position to an upper and lower overlapping position.

Abstract: A bendable water-cooling device includes: a pump unit having a pump case and a driver. The pump case has a pump chamber, a first inlet and a first outlet. The pump case is formed with a first pivotal connection section on the same side as the first outlet; a heat exchange unit having a liquid reservoir case and a heat dissipation member, the liquid reservoir case having a heat exchange chamber, a second inlet and a second outlet, the liquid reservoir case being formed with a second pivotal connection section on the same side as the second inlet; and a pivot unit having a first mating section and a second mating section respectively pivotally connected with the first and second pivotal connection sections. The pump unit and the heat exchange unit are bendable around the pivot unit from a horizontal position to an upper and lower overlapping position.

Abstract: A flexible and transformable water-cooling device includes a liquid reservoir case and a heat exchange unit. The liquid reservoir case is for a cooling liquid to pass therethrough. The liquid reservoir case has a flexible section, which can be flexed. The flexible section has a first end and a second end opposite to each other. A first region outward extends from the first end. The heat exchange unit is disposed in the first region and has multiple radiating fins in contact with the cooling liquid passing through the first region. Due to the flexibility of the flexible section of the water-cooling device, the water-cooling device can be freely flexed and transformed in accordance with an existent space in an electronic device. Therefore, the water-cooling device can be adaptively disposed in the electronic device.