Abstract: A wick structure and a loop heat pipe using same are disclosed. The loop heat pipe includes an evaporation chamber, the wick structure and a condensate line. The wick structure is disposed in the evaporation chamber. The evaporation chamber has an outlet and an inlet. The wick structure has a main body, and a plurality of grooves is axially formed on an outer peripheral surface of the main body. The grooves respectively have an open side and a closed side. The open side has a width smaller than that of the closed side. The grooves having the above configuration enable the loop heat pipe to have increased vapor-liquid circulation efficiency.

Abstract: A loop heat pipe structure includes an evaporation chamber, a pipe and a condensing unit. The evaporation chamber has an outlet and an inlet and internally defines a receiving space. A wick structure, a compensation chamber and at least one vapor passage are provided in the receiving space, and the vapor passage has an end communicable with the outlet. The pipe has a first and a second end connected to the inlet and the outlet of the evaporation chamber, respectively, and the first end is located closely adjacent to the wick structure. The condensing unit is externally mounted on the pipe between the first and the second end. With the first end of the pipe being located closely adjacent to the wick structure, the working fluid can flow back to the wick structure more efficiently.

Abstract: A wick structure and a loop heat pipe using same are disclosed. The loop heat pipe includes an evaporation chamber, the wick structure and a condensate line. The wick structure is disposed in the evaporation chamber. The evaporation chamber has an outlet and an inlet. The wick structure has a main body, and a plurality of grooves is axially formed on an outer peripheral surface of the main body. The grooves respectively have an open side and a closed side. The open side has a width smaller than that of the closed side. The grooves having the above configuration enable the loop heat pipe to have increased vapor-liquid circulation efficiency.

Abstract: A vapor chamber structure includes a first plate body, a second plate body and a tubular body. The first plate body has a first extension section perpendicularly extending from a periphery of the first plate body. The second plate body has a second extension section perpendicularly extending from a periphery of the second plate body. The second extension section is fitted around the first extension section, whereby the first and second plate bodies are correspondingly mated with each other to form a closed chamber. The tubular body penetrates through the first and second extension sections in communication with the closed chamber. By means of the first and second extension sections normal to the first and second plate bodies, when the first and second plate bodies are connected, the arrangement space occupied by the peripheral void section of the vapor chamber is reduced.

Abstract: A water-cooling device includes a main body having a pump chamber and a heat exchange chamber, which are partitioned from each other by a water room partitioning board. The water room partitioning board has a communication section for communicating the pump chamber with the heat exchange chamber. A pump unit is disposed in the pump chamber. A heat transfer unit is disposed in the heat exchange chamber. A cooling fluid is filled up in the pump chamber and the heat exchange chamber. The water-cooling device has greatly enhanced heat dissipation performance. Moreover, the water-cooling device is free from the problem of overheating of the stator assembly in operation.

Abstract: A water-cooling module includes a main body. The main body has a receiving space and a water room partitioning board. The receiving space is partitioned by the water room partitioning board into a pump chamber and a heat exchange chamber. The pump chamber and the heat exchange chamber communicate with each other through at least one communication section. A pump unit is disposed in the pump chamber. A heat transfer unit is disposed in the heat exchange chamber. A cooling fluid is filled up in the main body to circulate within the pump chamber and the heat exchange chamber. The pump unit is entirely immersed in the cooling fluid so that the operation efficiency of the pump unit is enhanced and the main body is thinned. Moreover, the problem of overheating of the pump unit in operation is solved.

Abstract: A water-cooling module includes a main body. The main body has a receiving space and a water room partitioning board. The receiving space is partitioned by the water room partitioning board into a pump chamber and a heat exchange chamber. The pump chamber and the heat exchange chamber communicate with each other through at least one communication section. A pump unit is disposed in the pump chamber. A heat transfer unit is disposed in the heat exchange chamber. A cooling fluid is filled up in the main body to circulate within the pump chamber and the heat exchange chamber. The pump unit is entirely immersed in the cooling fluid so that the operation efficiency of the pump unit is enhanced and the main body is thinned. Moreover, the problem of overheating of the pump unit in operation is solved.

Abstract: A water-cooling device includes a main body having a pump chamber and a heat exchange chamber, which are partitioned from each other by a water room partitioning board. The water room partitioning board has a communication section for communicating the pump chamber with the heat exchange chamber. A pump unit is disposed in the pump chamber. A heat transfer unit is disposed in the heat exchange chamber. A cooling fluid is filled up in the pump chamber and the heat exchange chamber. The water-cooling device has greatly enhanced heat dissipation performance. Moreover, the water-cooling device is free from the problem of overheating of the stator assembly in operation.

Abstract: A fan impeller balance calibrating method includes steps of: placing a fan impeller onto a balance measurement unit and activating the fan impeller to rotate; using a detector of the balance measurement unit to detect the amount of unbalance and phase of the fan impeller in rotation and generate a detection signal according to the amount of unbalance and phase of the fan impeller; and providing a counterweighing unit, which receives the detection signal to find at least one hole of the fan impeller according to the detection signal, which is to be counterweighed and counterweighs the hole with a counterweight. By means of the fan impeller balance calibrating method, the measurement and counterweighing of the fan impeller are automated. Therefore, the working time is shortened and the manufacturing cost is lowered.

Abstract: A light-emitting-diode (LED) lamp structure includes a lamp holder having a top opening, an LED module mounted to the top opening of the lamp holder and including at least one LED chip and a circuit board, and a lampshade assembled to a top of the lamp holder to enclose the LED module therein. The lampshade has an inner wall surface coated with at least one half-mirror layer, so that part of the light emitted from the LED module onto the half-mirror layer is reflected toward two lateral sides and a rear side of the lamp holder, enabling the LED lamp structure to have an increased light radiation angle and illuminate a wider area. A method of increasing light radiation angle and illuminating area of LED lamp structure is also disclosed.