Abstract: A cooling device includes a partitioning board abutting inner faces of two boards, respectively. A chamber is defined between the partitioning board and one of the two boards. Another chamber is defined between the partitioning board and another of the two boards and intercommunicates with the chamber via an intercommunication port and a backflow port of the partitioning board. A pump drives a working fluid to circulate in the two chambers. Two welding channels are formed on outer faces of the two boards and surround the two chambers, respectively. The smallest distance between a channel bottom face of each annular welding channel and the inner face of a respective board having the annular welding channel is smaller than that between the inner and outer faces of the respective board. The two boards are coupled to the partitioning board along the annular welding channels by laser welding.

Abstract: A cooling device includes a partitioning board abutting inner faces of two boards, respectively. A chamber is defined between the partitioning board and one of the two boards. Another chamber is defined between the partitioning board and another of the two boards and intercommunicates with the chamber via an intercommunication port and a backflow port of the partitioning board. A pump drives a working fluid to circulate in the two chambers. Two welding channels are formed on outer faces of the two boards and surround the two chambers, respectively. The smallest distance between a channel bottom face of each annular welding channel and the inner face of a respective board having the annular welding channel is smaller than that between the inner and outer faces of the respective board. The two boards are coupled to the partitioning board along the annular welding channels by laser welding.

Abstract: An immersion cooling system includes a sealed tank having a chamber. A circulating layer and a working layer are respectively formed by first and second working liquids filled in the chamber and are contiguous to each other. The boiling point of the second working liquid is higher than that of the first working liquid. The density of the second working liquid is lower than that of the first working liquid. The first and second working liquids do not dissolve in each other. A circulating cooling module includes a circulating pipeline having first and second ports located in the chamber. The circulating pipeline also has a heat absorbing section and a condensation section located between the first and second ports. The heat absorbing section is located in the working layer. The first working liquid flows into the circulating pipeline from the first port and circulates in the circulating pipeline.

Abstract: A slim pump according to the present invention includes a frame, a shaft-coupling portion, a stator, and an impeller. The frame includes an interior separated by a partitioning board into a first chamber and a second chamber. A flow inlet intercommunicates with the first chamber and a flow outlet intercommunicates with the second chamber. The first chamber is intercommunicated with the second chamber via a communication hole of the partitioning board. The shaft-coupling portion is located in the frame. The stator is disposed around the shaft-coupling portion and is located within an axial extent of the first chamber. The stator is axially aligned with the communication hole. The impeller includes a plurality of blades and an inlet opening located in the second chamber. The inlet opening faces and axially aligns with the communication hole.

Abstract: A cooling module includes a first casing, a second casing, and a cooling unit. The first casing includes a lower chamber filled with at least one working fluid. The first casing includes a heat source connecting face. The second casing includes an upper chamber. The cooling unit is located between the first and second casings. The cooling unit includes a plurality of tubes. Each of the plurality of tubes includes an end intercommunicating with the lower chamber and another end intercommunicating with the upper chamber, thereby the lower and upper chambers intercommunicate with each other. A plurality of cooling fin units is coupled to outer peripheries of the plurality of tubes. An angle between each of the plurality of tubes and the heat source connecting face is larger than 0° and smaller than 90°, or each of the plurality of tubes is parallel to the heat source connecting face.

Abstract: An immersion cooling system includes a sealed tank having a chamber. A circulating layer and a working layer are respectively formed by first and second working liquids filled in the chamber and are contiguous to each other. The boiling point of the second working liquid is higher than that of the first working liquid. The density of the second working liquid is lower than that of the first working liquid. The first and second working liquids do not dissolve in each other. A circulating cooling module includes a circulating pipeline having first and second ports located in the chamber. The circulating pipeline also has a heat absorbing section and a condensation section located between the first and second ports. The heat absorbing section is located in the working layer. The first working liquid flows into the circulating pipeline from the first port and circulates in the circulating pipeline.

Abstract: A cooling device includes a partitioning board abutting inner faces of two boards, respectively. A chamber is defined between the partitioning board and one of the two boards. Another chamber is defined between the partitioning board and another of the two boards and intercommunicates with the chamber via an intercommunication port and a backflow port of the partitioning board. A pump drives a working fluid to circulate in the two chambers. Two welding channels are formed on outer faces of the two boards and surround the two chambers, respectively. The smallest distance between a channel bottom face of each annular welding channel and the inner face of a respective board having the annular welding channel is smaller than that between the inner and outer faces of the respective board. The two boards are coupled to the partitioning board along the annular welding channels by laser welding.

Abstract: A liquid cooling module includes a housing having first and second chambers filled with a working fluid and intercommunicating with each other via an intercommunicating port and a backflow port. A pump is received in the housing and is aligned with the intercommunicating port. The pump includes a stator driving an impeller to rotate, driving the working fluid to flow from the first chamber through the intercommunicating port, the stator, and the impeller. The working fluid flows through the second chamber back into the first chamber via the backflow port. An electronic device includes a casing, an electric module received in the casing and including a heat generating area, and the liquid cooling module. The liquid cooling module is disposed in the casing and is in thermal connection with the heat generating area via a heat absorbing zone of the housing aligned with the first chamber or the second chamber.

Abstract: A slim pump according to the present invention includes a frame, a shaft-coupling portion, a stator, and an impeller. The frame includes an interior separated by a partitioning board into a first chamber and a second chamber. A flow inlet intercommunicates with the first chamber and a flow outlet intercommunicates with the second chamber. The first chamber is intercommunicated with the second chamber via a communication hole of the partitioning board. The shaft-coupling portion is located in the frame. The stator is disposed around the shaft-coupling portion and is located within an axial extent of the first chamber. The stator is axially aligned with the communication hole. The impeller includes a plurality of blades and an inlet opening located in the second chamber. The inlet opening faces and axially aligns with the communication hole.

Abstract: A vapor chamber includes a casing, a working liquid, and a capillary film. The casing includes a heat-absorbing sheet and a heat-releasing sheet opposite to the heat-absorbing sheet. The casing includes a sealed space therein. The working liquid is filled in the sealed space. The capillary film is received in the sealed space and contacts the working liquid. The capillary film is produced from sintering a mixture including thermally conductive particles of at least two different lengths.

Abstract: A rotor of an inner-rotor motor includes a shaft having a connecting portion. A permanent magnet is mounted around the connecting portion of the shaft. The permanent magnet includes at least one first engaging portion. At least one coupling member includes a through-hole. The shaft extends through the through-hole. The at least one coupling member includes a second engaging portion engaged with the at least one first engaging portion of the permanent magnet.

Abstract: The present disclosure provides a fluid transportation device. The fluid transportation device includes a casing and a fluid driving member. The casing has a first shell and a second shell divided along an axial direction. The first shell and the second shell are assembled to be opposite to each other. The casing has an accommodating space, a first transporting portion, and a second transporting portion. The first transporting portion and the second transporting portion are in communication with the accommodating space. The fluid driving member has a first fan wheel, a second fan wheel, and a motor. The first fan wheel, the second fan wheel, and the motor are disposed in the accommodating space. The motor is configured to drive the first fan wheel and the second fan wheel to rotate.

Abstract: A rotor of an inner-rotor motor includes a shaft having a connecting portion. A permanent magnet is mounted around the connecting portion of the shaft. The permanent magnet includes at least one first engaging portion. At least one coupling member includes a through-hole. The shaft extends through the through-hole. The at least one coupling member includes a second engaging portion engaged with the at least one first engaging portion of the permanent magnet.

Abstract: A cooling system for a hand-held electronic device includes a casing including a compartment, at least one air inlet in communication with the compartment, and at least one air outlet in communication with the compartment. A wind driving assembly is mounted in the compartment and includes a frame, a package, and a thermally conductive cover. The thermally conductive cover engages with the frame and the package. An impeller is rotatably arranged in the frame having an outlet hole adjacent to the at least one air outlet. The package receives at least one electronic element that generates heat during operation. The thermally conductive cover includes an inlet hole in communication with an interior of the frame. An air channel is formed between the thermally conductive cover and an interior wall face of the casing. The at least one air inlet intercommunicates with the inlet hole via the air channel.

Abstract: An air exchange device includes: an air-guiding tube having a first end and a second end opposite to each other, with the first end having a first inlet and a first outlet, and with the second end having a second inlet and a second outlet; a partition arranged inside the air-guiding tube to divide the inside of the air-guiding tube into a first air-guiding space communicating with the first and second inlets and a second air-guiding space communicating with the first and second outlets; a first filter arranged in a position adjacent to the first inlet; a second filter arranged in a position adjacent to the second inlet; and at least one fan adapted to draw and expel air and combined with the air-guiding tube. Bores of meshes of the first filter are larger than bores of meshes of the second filter.

Abstract: An air exchange device includes: an air-guiding tube having a first end and a second end opposite to each other, the first end having a first inlet and a first outlet, and the second end having a second inlet and a second outlet; a partition arranged inside the air-guiding tube to divide the inside of the air-guiding tube into a first air-guiding space communicating with the first and second inlets and a second air-guiding space communicating with the first and second outlets; a first filter arranged in a position adjacent to the first inlet; a second filter arranged in a position adjacent to the second inlet; and at least one fan adapted to draw and expel air and combined with the air-guiding tube; wherein bores of meshes of the first filter are larger than bores of meshes of the second filter.

Abstract: An air exchange device includes: an air-guiding tube having a first end and a second end opposite to the first end, the first end having a first inlet and a first outlet, and the second end having a second inlet and a second outlet; a partition settled inside the air-guiding tube and dividing a room inside the air-guiding tube into a first air-guiding space and a second air-guiding space, the first air-guiding space communicating with the first inlet and second outlet, and the second air-guiding space communicating with the first outlet and the second inlet; a fan arranged with the air-guiding tube and adapted to induce an airflow; and a control module connecting with at least one of the first and second ends of the air-guiding tube and electrically connecting with the fan.

Abstract: A lamp comprises a housing, an inner shell, a fan, a heat sink and a lighting module. The housing has a first compartment and a first opening on an end thereof. The inner shell is adapted to be received in the first compartment and has a second compartment and a second opening on an end thereof, wherein the second opening is aligned with the first opening. An air channel is formed between the housing and the inner shell in the first compartment. The inner shell further comprises a through-hole allowing the first compartment to communicate with the second compartment. The fan is located adjacent to the through-hole and has two air-flowing sides for drawing air in and out of the lamp. The heat sink has a bottom plate with one face facing the fan. The lighting module is adapted to be coupled to another face of the bottom plate.

Abstract: a serial fan device including two fans linked serially is provided. Each of the two fans has a housing, a driving member and a fan wheel, the housing has an outer frame and a base, the outer frame has two openings and a guiding channel linking the two openings, the driving member is disposed on the base, and the fan wheel is rotatably coupled with the driving member. At least one of the two fans has a positioning rim on the outer frame for the base to couple therewith, and a radial buffer gap is formed between an outer periphery of the base and an inner periphery of the positioning rim. Accordingly, the radial buffer gap can largely reduce the vibration transmitted from the base to the outer frame.

Abstract: A low vibration fan including a housing, a driving member and a fan wheel is provided. The housing has an outer frame and a base, wherein the outer frame has two openings, a positioning rim, and a guiding channel linking the two openings, wherein the base couples with the positioning rim, and wherein a radial buffer gap is formed between an outer periphery of the base and an inner periphery of the positioning rim. The driving member is mounted on the base. The fan wheel couples with the driving member rotatably. Accordingly, the radial buffer gap can largely reduce the vibration transmitted from the base to the outer frame.