Abstract:
A fan includes an impeller and a fan frame. The fan frame has a main body and at least one sound absorber, wherein the main body has a passage for receiving the impeller, a plurality of flanges are disposed on a periphery of the main body, a recess is defined between the two adjacent flanges, an aperture is disposed on a wall of the main body corresponding to the recess so as to allow the recess to communicate with the passage, and the sound absorber is disposed in the recess. Also, a cover is assembled in the min body and covers the sound absorber within the recess.
Abstract:
A power-on method for a circuit system having a power supply terminal and a charge input terminal, comprising: coupling the power supply terminal to a battery and the charge input terminal to an adaptor; detecting a voltage of the battery; when the voltage of the battery is below a threshold, turning on a second switch such that the adaptor supplies the circuit system through the charge input terminal and the second switch to start the circuit system and charge the battery; when the voltage of the battery is above the threshold, turning off the second switch, and turning on a third switch, such that the charge input terminal is coupled to the battery through the third switch, and the circuit system is powered by the battery; and outputting a switch signal to control a first switch coupled between the adaptor and the charge input terminal for controlling charge capacity.
Abstract:
A recirculation fan includes a casing, a covering member, and a fan assembly. The casing has a base. The covering member is coupled with the casing to define an accommodation space. The fan assembly is disposed within the accommodation space, and includes a first impeller, a second impeller, a motor, and a plurality of magnetic elements. The second impeller is located beside the first impeller. The motor is fixed on the base of the casing and connected with the first impeller for driving rotation of the first impeller. The magnetic elements are arranged between the first impeller and the second impeller. A wind force generated by the first impeller and a magnetic torque resulted from a magnetic vortex of the magnetic elements cause contactless rotation of the second impeller.
Abstract:
A computer enclosure includes a cage (10) and a drive bracket (40). The cage has two side panels (22), and each side panel forms a first slideway (26) and an aligned second slideway (30). Each first slideway includes a blocking portion (28). The drive bracket has two side walls (42). Each side wall attachingly receives a first sliding member (60), and forms a second sliding member (80). A slot (66) is defined in each first sliding member, thereby forming an elastic portion. A handle (68) is formed at a front end of the elastic portion, and a barb (72) protrudes from a top face of the elastic portion. In assembly, the drive bracket is pushed into the cage, with the second and first sliding members sliding along the second and first slideways. The barbs engage with the blocking portions, thus preventing the drive bracket from accidentally detaching from the cage.
Abstract:
A connector covering assembly includes a cover (20), and a base (30) slidably supporting the cover thereon. The cover includes first and second sliding members (23, 25), and a raised shield (24) having a handle (26) thereon. A half portion of the base defines a plurality of openings (31) for receipt of connectors therethrough. An opposite half portion of the base forms a pair of symmetrical elastic members (33, 34). Longitudinal, slightly raised edges of the base generally at opposite sides of the openings and of the elastic members respectively define a first slideway (32) and a second slideway (36). The covering assembly is mounted to the back of a bezel (10) of a computer, with the cover slidably disposed between the base and the bezel.
Abstract:
A fan includes an impeller and a fan frame. The fan frame has a main body and at least one sound absorber, wherein the main body has a passage for receiving the impeller, a plurality of flanges are disposed on a periphery of the main body, a recess is defined between the two adjacent flanges, an aperture is disposed on a wall of the main body corresponding to the recess so as to allow the recess to communicate with the passage, and the sound absorber is disposed in the recess. Also, a cover is assembled in the main body and covers the sound absorber within the recess.