Abstract: A heat dissipation fan including a hub and a plurality of fan assemblies are provided. The fan assemblies are disposed around the hub, and each of the fan assemblies includes at least two blades. A runner is formed between the at least two blades. A width of the runner gradually reduces along a rotating axis of the hub.

Abstract: A hinge mechanism is provided, including a fixed member, a rotary member pivotally connected to the fixed member, a pin, a first gear set, and a second gear set. The first and second gear sets are connected to the fixed member and the rod and respectively have a teeth-uncompleted gear. When the rotary member rotates relative to the fixed member from an initial angle to a first angle, the first gear set drives the pin to rotate in a first direction. When the rotary member further rotates relative to the fixed member from the first angle to a second angle, the second gear set drives the ping to rotate in a second direction, which is the opposite of the first direction.

Abstract: A portable electronic device having a heat source is provided with a suitable heat dissipation module. The heat dissipation module includes an evaporator, at least one pipe, a working fluid, and at least one check valve. The evaporator thermally contacts the heat source to transmit the heat generated by the heat source to the evaporator. The pipe is connected to the evaporator to form at least one loop, and the working fluid is filled in the loop. The working fluid absorbs and dissipates the heat in the loop to generate a phase change. The check valve is disposed at the loop and provides at least one recirculation channel in the same direction as the first direction and opposite to a second direction to block the working fluid from flowing in the second direction. The first and the second directions are opposite to each other.

Abstract: A heat dissipation module configured to dissipate heat from a heat source of an electronic device is provided. The heat dissipation module includes a heat pipe, a plurality of fins, and a fan. One end of the heat pipe is in thermal contact with the heat source. The fins are stacked up to be combined with one another and structurally propped against another end of the heat pipe. The fins form a plurality of flow inlets and a plurality of flow outlets. The fan is disposed at the flow inlets, and air flow generated by the fan flows in via the flow inlets and flows out via the flow outlets. A portion of the fin at the flow outlet forms a bending, and a pitch between any adjacent fins at the bending is less than 1 mm to be qualified to achieve a safety certification.

Abstract: A heat dissipation module including a first fan and a second fan is provided. The first fan has a first hub and a plurality of first fan blades disposed on the first hub. The second fan has a second hub and a plurality of second fan blades disposed on the second hub. Herein the first hub and the second hub are movably connected to each other in an axial direction such that the first fan and the second fan coincide or are separated from each other.

Abstract: A hinge mechanism is provided, including a rotary member, a first member, a second member, a first shaft, and a first slider. The first member has a first guiding channel. The second member pivotally connects to the first member and has a first recess. The first shaft pivotally connects the rotary member and the first member, wherein the first shaft has a first cavity. The first slider is movable between the first recess and the first cavity. When the first slider is located in the first recess, the first member is prohibited from rotating relative to the second member by the first slider. When the first slider slides from the first recess along the first guiding channel to the first cavity, the rotary member is prohibited from rotating relative to the first member by the first slider.

Abstract: A hinge mechanism is provided, including a fixed member, a rotary member, a hinge member, an annular member, and a hollow slider. The hinge member pivotally connects the rotary member to the fixed member and has a central axis. The annular member is disposed around the hinge member and has a depressed portion. The slider is disposed around the hinge member and located between the annular member and the rotary member. Additionally, the slider has a protrusion received in the depressed portion. When the rotary member rotates relative to the fixed member in an opening direction, the slider is forced by the rotary member to rotate relative to the annular member, so that the protrusion slides out of the depressed portion to form a first gap between the slider and the annular member along the central axis.

Abstract: A hinge structure including a first fixing component, a second fixing component, a shaft, a first positioning component, and a second positioning component is provided. The shaft passes through the first fixing component and the second fixing component. The first positioning component is connected to the second fixing component, wherein the shaft passes through the first positioning component, and the first positioning component includes a positioning elastic piece. The shaft passes through the second positioning component, wherein the positioning elastic piece faces toward the second positioning component, and a side of the second positioning component facing toward the positioning elastic piece is configured with a plurality of positioning slots arranged circularly. The positioning elastic piece is configured to engage in any one of the positioning slots to lock an opened/closed state of the second fixing component and the first fixing component. An electronic device is also provided.

Abstract: A fan and a balance ring for the fan are provided. The fan includes a housing, a hub disposed in the housing, blades connected to the side surface of the hub, and a balance ring connected to the hub. The balance ring includes a ring chamber and a balance liquid filled in the ring chamber. The volume of the balance liquid is less than the volume of the ring chamber.

Abstract: An accessory is selectively coupled in a first position or a second position to a portable electronic device. The accessory includes a touch unit and a heat dissipation unit. The touch unit is configured to be touched by a user to apply a contact force. An area of the touch unit to be touched by the user is defined as a contact point. When the accessory is in the first position, the touch unit detects a location of the contact point and outputs a control signal to the portable electronic device. The heat dissipation unit comes in contact with a heat source of the portable electronic device when the accessory is in the second position.

Abstract: An electric connector suited for an electronic device is provided. The electric connector includes a body, a plurality of terminals, and an electrical connecting member. The body is suited to be disposed in the electronic device and has at least one receiving area located on at least one of a top portion and a bottom portion of an exterior of the body. The terminals are disposed in the body, and an external electric connector is suited to be butted to the body along a first axis to be electrically connected to the terminals. One end of the electrical connecting member is located at the receiving area to be electrically connected to the terminals, and another end of the electrical connecting member extends out of the receiving area along a second axis to be electrically connected to the electronic device. The first axis is different from the second axis.

Abstract: A fan structure including a fan housing and a fan body is provided. The fan housing includes a base and a cover assembled on the base. The cover includes a main portion, a periphery portion, a plurality of connecting portions and a plurality of flow guiding portions. The connecting portions are connected to the main portion and the periphery portion. The cover has a plurality of air inlet openings among the main portion, the periphery portion and connecting portions, wherein each of the flow guiding portions protrudes from the main portion and is adjacent to an inner side of the corresponding air inlet opening. The fan body is rotatably disposed in the fan housing. An electronic assembly is also provided.

Abstract: A cycling heat dissipation module suited for dissipating heat generated from a heat source is provided. The cycling heat dissipation module includes an evaporator, a condenser, and a micro/nano-structure. The evaporator is thermal contacted with the heat source to absorb heat generated therefrom. The condenser is connected to the evaporator to form a loop, and a working fluid is filled in the loop. The working fluid in liquid state is transformed to vapor state by absorbing heat in the evaporator, and the working fluid in vapor state is transformed to liquid state by dissipating heat in the condenser. The micro/nano-structure is disposed in the condenser to destroy a boundary layer of the working fluid while passing through the condenser.

Abstract: A hinge structure including a first fixing component, a second fixing component, a shaft, a first positioning component, and a second positioning component is provided. The shaft passes through the first fixing component and the second fixing component. The first positioning component is connected to the second fixing component, wherein the shaft passes through the first positioning component, and the first positioning component includes a positioning elastic piece. The shaft passes through the second positioning component, wherein the positioning elastic piece faces toward the second positioning component, and a side of the second positioning component facing toward the positioning elastic piece is configured with a plurality of positioning slots arranged circularly. The positioning elastic piece is configured to engage in any one of the positioning slots to lock an opened/closed state of the second fixing component and the first fixing component. An electronic device is also provided.

Abstract: A hinge structure including an axis body, a torque member, and a pressing assembly is provided. The axis body includes a contact surface. The torque member leans against the contact surface of the axis body. The torque member and the axis body are rotatable relatively around a central axis of the axis body. The contact surface pushes the torque member to move around the central axis of the axis body when the torque member and the axis body rotate relatively. The pressing assembly provides a pushing force to the torque member to push the torque member to push towards the contact surface. A plurality of electronic devices having the hinge structure are further provided.

Abstract: A heat dissipation system of an electronic device including a body, at least one heat source, and a heat dissipation module is provided. The body has a stack tunnel, and the heat source is disposed in the body. The heat dissipation module includes an evaporator and a pipe connecting to the evaporator to form a loop, and a working fluid is filled in the loop. The evaporator is in thermal contact with the heat source to absorb heat generated from the heat source, and the heat is transferred to the loop through phase transition of the working fluid in the loop, such that the loop heats the air in the stack tunnel in a two-dimensional manner.

Abstract: A rotary combination module for a tablet computer, which includes a pad and a dock, to engage the pad with the dock, the rotary combination module comprising: a rotation part, disposed on the back of the pad, for rotating on the pad as a rotation plane; an extension part, connected with the rotation part, for shifting in the rotation part and positioning at a predetermined location; and a stand, connected to the extension part, for turning away from the extension part and positioning at a predetermined angle.

Abstract: A heat dissipation fan including a hub and a plurality of metal fan blades disposed all around the hub. Each of the metal fan blades has a first end and a second end opposite to each other, wherein the first end is connected to the hub, and the metal fan blade has a flap wing at the second end. An angle is included between the flap wing and a surface of the metal fan blade.

Abstract: A blade module and a fan using the same are provided. The blade module includes a rotating shaft and a plurality of blades. Each blade is connected to the rotating shaft and includes a blade body and an airflow guiding portion. The airflow guiding portion is connected to the blade body and has an opening.

Abstract: A fluid heat exchange apparatus including a casing, and a heat-dissipating device is provided. The casing includes a chamber, an inlet, and an outlet. The chamber includes a first channel including a first entrance and a first exit and a second channel including a second entrance and a second exit. The cross-sectional area of the first channel decreases from the first entrance to the first exit and the cross-sectional area of the second channel decreases from the second entrance to the second exit. The heat-dissipating device is located between the first exit and the outlet. A first fluid flows from the inlet and flows through the first channel and the heat-dissipating device and then flows to the outlet. Part of the first fluid flowing through the heat-dissipating device absorbs heat and forms bubbles moving to the second channel and then forms a second fluid converging into the first channel.