Abstract: An impeller includes a hub, a plurality of blades provided around an outer periphery of the hub, and at least two connecting rings connected to the plurality of blades. Each of the plurality of blades has a top edge and a bottom edge opposite to the top edge. One or more of the at least two connecting rings is disposed between but not connected to the top edges and the bottom edges of the plurality of blades. A cooling fan including the impeller is also provided.

Abstract: A method for manufacturing a stator of a waterproof motor includes disposing a first assembly in a mold where the first assembly includes a coil unit wound around an iron core assembly and filling the mold with a thermosetting plastic which forms a housing after curing. The housing envelops the coil unit and the iron core assembly. A recess is formed at one end of the housing. The method further includes disposing a second assembly in the recess of the housing where the second assembly includes a circuit unit and filling the recess of the housing with a waterproof glue which envelops the circuit unit after curing. According to the above, the stator of the waterproof motor is formed.

Abstract: A method for manufacturing a stator of a waterproof motor includes disposing a first assembly in a mold where the first assembly includes a coil unit wound around an iron core assembly, and filling the mold with a thermosetting plastic which forms a housing after curing. The housing houses the coil unit and the iron core assembly. A recess is formed at one end of the housing. The method further includes disposing a second assembly in the recess of the housing where the second assembly includes a circuit unit, and filling the recess of the housing with a waterproof glue which envelopes the circuit unit after curing. According to the above, the stator of the waterproof motor is formed.

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: A blade adapter includes a support portion and a plurality of blade connection sections. The plurality of blade connection sections is connected to an outer periphery of the support portion. Each of the plurality of blade connection sections has a first face and a blade connection face opposite to the first face. The blade connection face includes at least one inclined portion. A windward adjustment angle or an inclination adjustment angle is presented between the at least one inclined portion and a horizontal plane. In addition, a ceiling fan includes a motor, the blade adapter, and a plurality of blades. The support portion of the blade adapter is coupled with the motor. The plurality of blades is coupled with the blade connection faces of the plurality of blade connection sections, respectively.

Abstract: A fan includes a fan frame, an impeller, a plurality of blades and a light emitting unit. The impeller is rotatably coupled with the fan frame and includes a light diffuser ring. The plurality of blades is connected to the light diffuser ring. The light emitting unit is mounted in the fan frame, includes a board and plurality of light-emitting elements mounted on the board, and shines light on the light diffuser ring.

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 bearing system includes a first bearing, a second bearing, and a rotating member. The first bearing is hollow and has a first inner face. The second bearing is located in the first bearing. The second bearing includes a second inner face axially aligned with the first inner face. A partitioning space is formed between the first inner face and the second inner face. The rotating member has a shaft and a protruding portion coupled to the shaft. The protruding portion is located in the partitioning space. A dynamic pressure gap is formed between the protruding portion and the first inner face during rotation. Another dynamic pressure gap is formed between the protruding portion and the second inner face during rotation.

Abstract: A dustproof bearing assembly includes a base having a shaft tube. The shaft tube has an open end with an opening. At least one bearing is coupled to an inner periphery of the shaft tube. A rotating member includes a shaft seat. A shaft includes a first end coupled to the shaft seat and a second end extending through a shaft-receiving hole of the at least one bearing. A dustproof member includes a lower face and an upper face. The lower face is spaced from the open end of the shaft tube. The dustproof member covers the opening. The upper face of the dustproof member abuts a bottom of the shaft seat. The dustproof member has an outer diameter larger than an inner diameter of the shaft tube. The dustproof bearing assembly can be used in a motor.

Abstract: An impeller includes a hub, a plurality of blades coupled with the hub, and a plurality of ribs connected to the plurality of blades. Each of the plurality of ribs has a connecting end coupled with the hub.

Abstract: A motor includes a base, a stator, a dynamic pressure bearing unit and a rotor. The base includes a shaft tube. The shaft tube includes a closed end and an open end. The stator is mounted around the shaft tube. The dynamic pressure bearing unit includes a bearing, a dynamic pressure assembly and a thrust plate. The bearing is received in the shaft tube. The dynamic pressure assembly and the thrust plate are disposed in a position relatively adjacent to the open end of the shaft tube and relatively distant from the closed end of the shaft tube. The dynamic pressure assembly is located between the bearing and the thrust plate. A lubricating fluid layer is disposed between the dynamic pressure assembly and the thrust plate. The rotor is connected to the thrust plate and is rotatably coupled with the bearing.

Abstract: A cooling module includes at least one heat pipe and a fin unit. Each of the at least one heat pipe includes a condensing section between a first end and a second end of the heat pipe, a first vaporization section between the condensing section and the first end of the heat pipe, and a second vaporization section between the condensing section and the second end of the heat pipe. The condensing section intercommunicates with the first vaporization section and the second vaporization section. The fin unit is mounted to the condensing section of each of the at least one heat pipe.

Abstract: A ceiling fan includes an axle, a hub, a plurality of blades, a plurality of connecting members, and a plurality of protective sleeves. The hub is rotatably coupled with the axle. The plurality of blades is coupled with the hub. Each of the plurality of blades has a first end and a second end. The first end is coupled with the hub. Each of the plurality of blades has a channel intercommunicating the first end with the second end. The plurality of connecting members is respectively received in the channels of the plurality of blades. Each of the plurality of connecting members has an end coupled with the hub, as well as another end coupled with the second end of the each of the plurality of blades. The plurality of protective sleeves respectively envelopes the plurality of connecting members.

Abstract: A motor includes a seat, a bearing, a limiting member, a stator and a rotor. The seat includes a base plate and a shaft tube connected to the base plate. The shaft tube includes an open end distant to the base plate and having a plurality of fusion posts. The bearing is received in the shaft tube. The limiting member has a central hole. A diameter of the central hole is smaller than a diameter of the open end. The limiting member has a plurality of through-holes surrounding the central hole. The plurality of fusion posts respectively extends through the plurality of through-holes to fix the limiting member to the shaft tube by fusion bonding. The stator is fit around the shaft tube. The rotor includes a shaft extending through the central hole of the limiting member and rotatably coupled with the bearing.

Abstract: A handheld electronic device includes a case, an electronic unit and a cooling fan. The case includes at least one rib, an air inlet and a heat outlet. The at least one rib delimits a heat chamber. The air inlet and the heat outlet intercommunicate with an outside of the case. The electronic unit includes a heat source located in the heat chamber. The cooling fan is located in the heat chamber and includes an air entrance and an air exit. The air entrance intercommunicates with the air inlet of the case, and the air exit intercommunicates with the heat outlet of the case.

Abstract: A bearing assembly including a bearing seat, at least one bearing and a shaft is disclosed. The bearing seat includes a chamber, a shaft-coupling hole and a shaft hole. The shaft-coupling hole and the shaft hole intercommunicate with the chamber. The bearing seat has a slit which is adjustable. The at least one bearing is received in the chamber. The shaft extends through the shaft hole and the at least one bearing and includes at least one abutment portion. The at least one bearing abuts the at least one abutment portion. In addition, a motor including a bearing assembly is disclosed.

Abstract: A bearing assembly including a bearing seat, at least one bearing and a shaft is disclosed. The bearing seat includes a chamber, an assembly hole and a shaft hole. The assembly hole and the shaft hole intercommunicate with the chamber. The bearing seat has a slit which is adjustable. The at least one bearing is received in the chamber. The shaft extends through the shaft hole and the at least one bearing and includes at least one abutment portion. The at least one bearing abuts the at least one abutment portion. In addition, a motor including a bearing assembly is disclosed.

Abstract: A sleeve unit for a motor of a ceiling fan includes a tubular member and a wire isolation member. The tubular member has a lateral slot extending through the tubular member from an inner periphery to an outer periphery of the tubular member. The lateral slot extends from a first axial end face towards a second axial end face of the tubular member along an axis of the tubular member. The wire isolation member includes an isolation plate unit delimiting a wire channel. The wire channel is located in the lateral slot. The isolation plate unit includes a stopper plate which is located in the lateral slot but does not come into a space delimited by the inner periphery of the tubular member.

Abstract: A fan frame of an axial-flow fan is provided to reduce the vibration generated during the rotation of the impeller that is transmitted to the outside of the axial-flow fan via the fan frame. The fan frame includes a housing, a base and a plurality of connection members. The base includes a shaft-coupling portion. Each of the plurality of connection members includes two ends respectively connected to the housing and the base. Each of the plurality of connection members is defined with an extension line passing through the two ends of the connection member. Each of the plurality of connection members includes a first bending portion and a second bending portion. The first bending portion extends around a first notch, and the second bending portion extends around a second notch. The extension line extends through the first and second notches.