Abstract: A coupling structure for a tandem motor includes two bearing sleeves formed with grooves thereon, a connector and elastic fasteners. The connector has a first end and an opposed second end, and each of the first end and second end is formed with at least one groove. A first elastic fastener is fit into the groove of the connector at the first end and received in the groove formed on one of the two bearing sleeve, and a second elastic fastener is fit into the groove of the connector at the second end and received in the grooves formed on the other bearing sleeve.

Abstract: A heat-dissipating device and a housing thereof. The housing includes a passage for guiding an air stream flowing from an opening to another opening, wherein an inner wall of the passage at at least one of the opening sides extends radially outwards with a rotational axis of the heat-dissipating device or the passage so as to enlarge intake or discharge area for the air streams. Accordingly, the intake airflow rate may be greatly increased and the heat-dissipating efficiency of the heat-dissipating device may be greatly enhanced without changing assembling conditions with other elements.

Abstract: An axial flow fan. The axial flow fan includes an impeller, an annular structure, and a plurality of connecting elements. The impeller has a plurality of blades, arranged radially. Each blade has an outer periphery. The outer periphery has a top portion. The annular structure is attached to the top portion of the outer periphery of each blade. Each connecting element respectively connects each blade to the annular structure.

Abstract: A heat dissipation module includes a first heat dissipation apparatus, a second heat dissipation apparatus, at least one first flapper and at least one second flapper. The first heat dissipation apparatus has a first airflow passage, and the second heat dissipation apparatus has a second airflow passage. The first flappers and the second flappers are separately disposed within the first airflow passage and the second airflow passage. The first flappers and the second flappers are moved to an open position due to force generated by air flowing through the first airflow passage and the second airflow passage, and are moved to a closed position after the force is removed.

Abstract: A fan includes a fan base, a bearing assembly, a fan hub and a shaft. The fan hub is formed with an extrusion protruding from its top planar surface, and the shaft is fit into the bearing assembly and connected to the fan hub. The shaft has one end protruding from the top planar surface of the fan hub to form an extension portion, and the extension portion of the shaft is enclosed by and in close connection with the extrusion of the fan hub.

Abstract: A cooling fan with high heat-dissipating performance includes a plurality of blades; and a frame for receiving the blades therein, wherein the frame has a reduced height for exposing the blades to outside of the frame so as to allow air to enter into the frame via a top portion and a peripheral portion of the blades to improve air introduction and heat dissipating efficiency of the cooling fan. A cover may be mounted to a top surface of the frame, and formed with a plurality of openings for allowing air to enter into the frame through the openings; such an arrangement cam effectively enhance air intake and working efficiency of the cooling fan.

Abstract: This specification discloses a serial fan comprising a plurality of rotor vanes, one or more supports and a frame. Each of the rotor vanes comprises an inlet, an outlet, and one or more blades. Each support supports at least one of the rotor vanes so that the corresponding rotor vane can rotate thereon. The frame connects all the supports. The rotor vanes are connected in series in the axial direction, and the design of each of the rotor vanes is such that the velocity vector of the air relative to one of the blades on the outlet side of the ith rotor vane plus the velocity vector of the blade of the (i+1)th rotor vane relative to that of the ith rotor vane gives the incoming velocity vector of the air relative to the (i+1)th rotor vane. This vector is essentially parallel to the extension direction of the blade on the inlet side of the (i+1)th rotor vane. Here, i is a natural number smaller than the number of the plurality of rotor vanes.

Abstract: A cooling fan with high heat-dissipating performance includes a plurality of blades; and a frame for receiving the blades therein, wherein the frame has a reduced height for exposing the blades to outside of the frame so as to allow air to enter into the frame via a top portion and a peripheral portion of the blades to improve air introduction and heat dissipating efficiency of the cooling fan. A cover may be mounted to a top surface of the frame, and formed with a plurality of openings for allowing air to enter into the frame through the openings; such an arrangement cam effectively enhance air intake and working efficiency of the cooling fan.

Abstract: A heat-dissipating device and a housing thereof. The heat-dissipating device includes an impeller and a housing. The impeller includes a hub and a plurality of rotor blades disposed around the hub. The housing includes an outer frame, an air-guiding part, and a plurality of stator blades. The air-guiding part is formed on at least one side of the outer frame. The stator blades are disposed in the outer frame corresponding to the air-guiding part. The stator blades guide the airflow through the blades, and greatly increase the static pressure of the airflow discharged from the heat-dissipating device.

Abstract: The heat-dissipating module includes at least one heat-dissipating device and a terminal mounted and fixed on one side of the heat-dissipating device and electrically connected with the heat-dissipating device. As the heat-dissipating module is inserted into a frame of the system, the terminal will be received by a receptacle inside the system such that the heat-dissipating module can be electrically connected to the system. The heat-dissipating module can be easily dissembled and replaced in a system without turning off the system and can provide the best heat-dissipating efficiency in a limited space of the system without being affected by the inside height or thickness of the system.

Abstract: A heat dissipation module is disclosed. A first heat dissipation apparatus and a second heat dissipation apparatus are symmetrically disposed. A flow direction controlling structure has a rotatable element disposed between the first and second heat dissipation apparatuses and formed an isolation wall thereof, so that the first and second heat dissipation apparatuses respectively have a tunnel. Each of the rotatable elements has a fixed end and a correspondingly movable end for guiding air flow. When outlet pressures of the first and second heat dissipation apparatuses are different, the movable end deflects to the first heat dissipation apparatus or the second heat dissipation apparatus to change outlet areas thereof. The heat dissipation module and the flow direction controlling structure control air flow and prevent backflow, so as to maintain overall outlet area and improve heat dissipation effect of the module.

Abstract: An axial flow fan with a plurality of segment blades is described. The axial flow fan has a base, a hub and a plurality of blade units. The hub is mounted on, or pivots on, the base and supports the blade units. Each of the blade units is connected to a periphery of the hub and extends radially outward from the base has a plurality of segment blades. A segment space between the segment blades reforms a boundary layer of fluid passing over the segment blades and reduces the thickness of the boundary layer on the blade surfaces. As a result, the separation between the blade surfaces and fluid is avoided to maintain a laminar flow of the fluid adjacent to the segment blades.

Abstract: A heat-dissipation structure for a motor. The heat-dissipation structure comprises a shaft, a seat and a rotator. The rotator coupled to the seat by the shaft comprises a housing and a cover. The housing comprises an inner side connected to the shaft and a bottom comprising at least one through hole. The cover is connected to an exterior of the bottom of the housing and a distance is formed between the cover and the housing, so that the cover prevents objects from entering the through hole.

Abstract: A heat-dissipating fan with an upward air-guiding member is provided. The heat-dissipating fan includes a housing, an impeller having a hub and a plurality of blades disposed around the hub, a base disposed inside the housing for supporting the impeller thereon, and an air-guiding member disposed between the base and the housing, wherein the air-guiding member has at least one inclined edge on the windward side or its opposite side relative to the horizontal line perpendicular to the axis of the heat-dissipating fan.

Abstract: A heat-dissipating fan with a plurality of upward rotor blades is provided. The heat-dissipating fan includes a housing, an impeller having a hub and a plurality of rotor blades disposed around the hub, and a base disposed inside the housing for supporting the impeller thereon. The rotor blades have at least one inclined edge with a first inclined angle relative to the horizontal line perpendicular to the axis of the heat-dissipating fan, respectively.

Abstract: The present invention provides a blade structure used in a blower to not only increase the wind pressure and gas quantity but also reduce the noise. The blade structure includes a vane group constituted by a plurality of vanes. A plurality of inclined portions is also included in the blade structure. Each of the plurality of the inclined portions is connected to each of the plurality of vanes of the vane group.

Abstract: An improved axial-flow fan structure is disclosed and claimed, which includes a hub and a plurality of blades. The hub has a top surface and a side surface around which the plurality of blades is mounted. A lateral air intake region is formed above the top surface of the hub and surrounded by edge portions of all of the blades. A lateral air intake surface around the lateral air intake region is constituted by the edge portions of all of the blades. A part of each of the edge portions is fastened to the side surface of the hub.

Abstract: A rotor assembly includes a housing and a hub. The housing has an open end and an opposed closed end, and is formed with a raised portion in the central location of the closed end. The hub is mounted on the closed end of the housing and covers the housing except for the raised portion to construct a thin motor.

Abstract: A blower having a plurality of impellers is described. The blower has two driving devices and two impellers respectively mounted on the two driving devices. The blades of the two impellers, which are radially or axially disposed, are overlapped so as to enhance the heat-dissipating efficiency of the blower.