Abstract: A head phone structure includes an earmuff casing and a speaker. The earmuff casing includes a first casing and a second casing. A first accommodating space and a first chamber are formed between the first casing and the second casing, and the first chamber is formed outside the first accommodating space. The speaker is disposed in the first accommodating space of the earmuff casing and at least includes a frame and a vibration system. A second chamber is defined and formed by the frame and the vibration system. An airflow is generated in the second chamber when the vibration system vibrates. The second chamber communicates with the first chamber of the earmuff casing.

Abstract: A shaft structure and an electronic device using the same are provided. The shaft structure includes a friction fixing member, a friction rotating member, a latch and a magnetic module. The friction fixture has a fixed wall. The friction rotating member has an elastic wall. The friction rotating member is inserted into the friction fixing member. The latch is inserted into the friction rotating member and pushed against the inner side of the elastic wall so that the elastic wall is expanded to push against the fixed wall of the friction fixing member. The magnetic module is configured to provide a magnetic repulsive force to the latch to push the latch against the elastic wall.

Abstract: An axial flow fan includes a hub and a plurality of fan sets disposed around the hub. The hub rotates around a center axis and has a positive pressure side and a negative pressure side opposite to each other. Each of the fan sets includes at least two blades, and each blade has a wind inlet end, a wind outlet end opposite to the wind inlet end, a negative pressure surface, and a positive pressure surface opposite to the negative pressure surface. The wind outlet end of one of the adjacent two blades corresponds to the wind inlet end of the other one of the adjacent two blades. A gap is provided between the negative pressure surface of one of the adjacent two blades and the positive pressure surface of the other one of the adjacent two blades.

Abstract: A heat dissipation module including a chamber, a first cooling member, and a barrier part is provided. The chamber has an accommodating space, at least one inlet, and at least one outlet. The at least one inlet is disposed in a first side wall of the chamber and communicates with the accommodating space. The at least one outlet is disposed in a second side wall of the chamber away from the at least one inlet and communicates with the accommodating space. The first cooling member is disposed in the accommodating space. The first cooling member has a guiding surface which extends obliquely upward. The barrier part is disposed outside the guiding surface of the first cooling member and has at least one through hole.

Abstract: A heat dissipating assembly suited for an electronic device is provided. The electronic device has at least one heat source. The heat dissipating assembly includes a first tube, a second tube, and a fluid. The first tube has an inlet and an outlet, wherein a bore size of the inlet is smaller than a bore size of the outlet. Heat generated from the heat source is transferred to the first tube. Two opposite ends of the second tube are connected to the inlet and the outlet such that the first and the second tubes are formed into a closed loop. The fluid is filled in the closed loop. The fluid in the first tube transferred from the inlet toward the outlet absorbs the heat and is transferred to the second tube for heat dissipating. An electronic device is also provided.

Abstract: A heat dissipation fan including a hub and a plurality of heat dissipation blades is provided. The heat dissipation blades are arranged around the periphery of the hub. Each of the heat dissipation blades includes a curved surface body and a flow guiding portion. The curved surface body has a pressure bearing surface and a negative pressing surface opposite to the pressure bearing surface. The flow guiding portion is connected to the curved surface body. The flow guiding portion has a concave surface and a convex surface opposite to the concave surface, wherein the concave surface is recessed in the pressure bearing surface and the convex surface protrudes outward from the negative pressing surface.

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: An axial flow fan includes a hub and a plurality of fan blade sets. The hub is configured to rotate around an axis. The fan blade sets are disposed at the peripheral of the hub, wherein each of the fan blade sets includes a first fan blade and a second fan blade arranged side by side along the axis and a flow channel is defined by each of the first fan blades and the corresponding second fan blade. Each of the flow channels has an inlet and an outlet opposite to each other, wherein at least one of each of the first fan blades and the corresponding second fan blade has a flow guiding hole and each of the flow guiding holes is located between the inlet and the outlet. Each of the flow guiding holes is communicated with the flow channel.

Abstract: This invention disclosure reported here a supported metal hydroxide adsorbent and a method for its preparation as well as a method for its oxidative regeneration. The supported metal hydroxide adsorbent comprises metal hydroxide and support with a mass ratio of 5-30:100. The adsorbent disclosed in present invention exhibited outstanding adsorption capacity and high selectivity to sulfur impurity in gasoline. The method of oxidative regeneration provides an efficient way for the recovery of the saturated adsorbent.

Abstract: A centrifugal heat dissipation fan including a housing and an impeller is provided. The housing has at least one inlet and at least one outlet. The impeller is disposed in the housing and rotates about an axis. The inlet is located in an axial direction of the axis and corresponds to the impeller. The outlet is located in a radial direction relative to the axis. The inlet is divided into a compression section and a release section in the rotation direction of the impeller, and the compression section has a uniform first radial dimension relative to the axis. The release section has an extended second radial dimension relative to the axis, and the second radial dimension is greater than the first radial dimension.

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 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. The hinge mechanism includes a base, a magnetic assembly, a torque assembly, and a calibration component. The magnetic assembly is disposed in the base. The torque assembly is connected to the base, and includes a substrate, a first cylinder, and a second cylinder. The substrate is disposed in the base. The first cylinder penetrates the substrate, and is rotatable relative to the substrate. The second cylinder penetrates the substrate, and is rotatable relative to the substrate and the first cylinder. The calibration component is disposed between the magnetic assembly and the torque assembly, and abuts an inner wall of the first cylinder, and an inner wall of the second cylinder.

Abstract: A heat dissipation fan suited for being assembled in an electronic device is provided. The heat dissipation fan includes a hub and a plurality of fan blades disposed at and surrounding the hub. The fan blade has ductility and flexibility, and any two fan blades next to each other are in different thickness.

Abstract: A fan blade includes an arch-shaped body, a connecting portion, at least one sheet and at least one reinforcement component. The arch-shaped body has a pressure bearing surface and a negative pressure surface opposite to the pressure bearing surface. The connecting portion is connected to a first end portion of the arch-shaped main body. The sheet is connected to the pressure bearing surface or the negative pressure surface. The reinforcement component is connected to the pressure bearing surface. An orthogonal projection of the sheet on the arch-shaped body and an orthogonal projection of the reinforcement component on the arch-shaped body are not overlapped with each other. A fan is also provided.

Abstract: A shaft structure and an electronic device using the same are provided. The shaft structure includes a friction fixing member, a friction rotating member, a latch and a magnetic module. The friction fixture has a fixed wall. The friction rotating member has an elastic wall. The friction rotating member is inserted into the friction fixing member. The latch is inserted into the friction rotating member and pushed against the inner side of the elastic wall so that the elastic wall is expanded to push against the fixed wall of the friction fixing member. The magnetic module is configured to provide a magnetic repulsive force to the latch to push the latch against the elastic wall.

Abstract: A heat dissipation module including a chamber, a first cooling fin, and a barrier part is provided. The chamber has an accommodating space, at least one inlet, and at least one outlet. The at least one inlet is disposed in a first side wall of the chamber and communicates with the accommodating space. The at least one outlet is disposed in a second side wall of the chamber away from the at least one inlet and communicates with the accommodating space. The first cooling fin is disposed in the accommodating space. The first cooling fin has a guiding surface which extends obliquely upward. The barrier part is disposed outside the guiding surface of the first cooling fin and has at least one through hole.

Abstract: A heat dissipation module used for an electronic device is provided. The electronic device has a heat source. The heat dissipation module includes an evaporator, a pipe, and a working fluid. The evaporator has a recess at an exterior surface of the evaporator, and the heat source is thermally contacted with the recess to transfer a heat generated from the heat source to the recess of the evaporator. The pipe is connected to an inner space of the evaporator and forms a loop. The working fluid is filled in the loop, wherein the working fluid in liquid passing through a portion of the inner space of the evaporator corresponding to the recess absorbs the heat and is transformed into vapor.

Abstract: A fan blade includes an arc-shaped body and a connecting portion. The arc-shaped body has a main portion and an end portion connected to the main portion, wherein a width of the end portion is gradually decreased in a direction away from the main portion. The connecting portion is connected to the main portion, and the end portion and the connecting portion are respectively located at two opposite sides of the main portion. A fan structure is also provided.

Abstract: A heat dissipation module suitable for an electronic device is provided. The electronic device has a heat source. The heat dissipation module includes an evaporator and a pipe assembly. An internal space of the evaporator is divided into a first space and a second space, and the heat source is thermally contacted with the second space. The pipe assembly is connected to the evaporator to form a loop. A working fluid is filled in the loop. The working fluid in liquid receiving heat from the heat source is transformed into vapor and flows to the pipe assembly. Then, the working fluid in vapor is transformed into liquid by dissipating heat in the pipe assembly and flows to the first space of the evaporator. The working fluid in liquid is stored in the first space and is used for supplying to the second space.