Abstract: A notebook computer includes a central processing unit, a video card, a display coupled to the video card, a projecting module, and a projector driving module. The video card is coupled to the central processing unit via a bridge and configured to receive graphical information from the central processing unit. The projecting module is coupled to the video card. The projector driving module is coupled to the projecting module and configured to activate the projecting module. The video card is capable of generating and outputting images to the display or the projecting module according to the graphical information as desired. The projecting module is capable of projecting the images after being activated by the projector driving module.

Abstract: A battery charger includes a housing, at least two contacts, a transmission mechanism, and a driving member. The housing defines a slot and through holes. The at least two contacts are received in the housing and are operable to protrude out of the housing after passing through the through holes. The transmission mechanism is received in the housing and is for driving the at least two contacts to protrude out of the housing. The driving member is received in the housing and partially extends out of the housing after passing through the slot. The driving member is capable of sliding in the slot and activating the transmission mechanism.

Abstract: A power adaptor is connected between a power supply and an electronic device. The electronic device includes a device charging connector, and an electricity storing unit connected to the device charging connector. The power adaptor includes a power source connector and a first magnetic body. The power source connector is capable of electrically connecting with the device charging connector such that the electricity storing unit is charged by the power supply. The first magnetic body is arranged on the power source connector. The electronic device further includes a second magnetic body. When the electricity storing unit is fully charged, a direction of magnetic field of the second magnetic body is set such that a repelling force is generated between the first magnetic body and the second magnetic body, thus an electrical connection between the power source connector and the device charging connector is disconnected.

Abstract: An optical fiber connector includes a splice tube, a clamping member, an outer housing, and an inner housing. The inner housing is detachably and adjustably assembled with the outer housing. The clamping member is received within the outer housing and adjustably clamped between the outer housing and the inner housing. The clamping defines a through hole coaxially communicating with the outing housing and the inner housing. The splice tube is assembled within the inner housing with one end connecting with the clamping member coaxially.

Abstract: A system for testing a DC power supply performance includes a comparison module, a judge module, and an alarm module. The comparison module receives DC voltage signals from the DC power supply, compares the DC voltage signals with a reference voltage respectively, and outputs a voltage level signal when the DC power supply is normal. The judge module receives the voltage level signal, and outputs a control signal according to the voltage level signal. The alarm module receives the control signal, and indicates status of the DC power supply according to the control signal.

Abstract: A hinge assembly includes a first rotating module and a second rotating module. The first rotating module includes a frame and a pivot mechanism positioned on the frame. The second rotating module includes a supporting body, a shaft, a rotating washer, a stationary washer, a resilient ring, and a nut. A first end of the shaft is fixed on the frame, and the supporting body, the rotating washer, the stationary washer, the resilient ring, and the nut are orderly sleeved on a second end, opposite to that of the first end, of the shaft. The nut fixes the supporting body, the rotating washer, the stationary washer, and the resilient rings to the shaft. The rotating washer and the stationary washer forms at least one protrusion and at least depression for receiving the at least one protrusion respectively. The pivotal shaft is configured to drive the stationary washer to rotate.

Abstract: An exemplary rotatable positioning structure includes a first element and a second element. The first element includes a positioning track portion and defining a hole therein. The second element includes a pivot shaft engaging in the hole. The pivot shaft includes a through hole defined therethrough, a restriction portion and a positioning portion. The first element is restricted by the restriction portion of the pivot shaft. The positioning portion and the positioning track portion are capable of making the first element and the second element maintain a fixed position after relatively rotation therebetween.

Abstract: An axial fan includes an impeller. The impeller includes a hub and a plurality fan blades connected with the hub. Each fan blade includes a mounting portion provided at an inner edge thereof. The mounting portion defines a slot therein. A fastener extends through the slot of the mounting portion to fix each fan blade to the hub. An angle is defined between each fan blade and a central axis of the axial fan. The angle is capable of being regulated when each fan blade is rotated relative to the hub to cause the fastener to slide in the slot of the mounting portion.

Abstract: A heat dissipation device includes a heat conducting board attached to an electronic component mounted on a printed circuit board, a fin unit disposed on the heat conducting board, a fixing module and a fan secured on the fixing module. The fixing module comprises a pivoting post extending through the fin unit, a fan holder spanning over the fin unit and pivotally fixed to the pivoting post, and two fastening members engaging with two opposite ends of the pivoting post and being capable of fixing the fan holder at different positions relative to the fin unit. The fan is fixed to the fan holder of the fixing module and provides airflow towards the fin unit.

Abstract: A power button assembly includes a printed circuit board having a switch, a support plate engaging with the printed circuit board, and a push button to activate the switch. The support plate includes abutting portions to elastically abut against the push button, and one of the support plate and the push button includes hook portions, and the other includes latching portions engaging with the hook portions.

Abstract: A dispensing apparatus includes a mounting plate and a dispenser fixed to the mounting plate. The dispenser includes a nozzle valve, a valve plug, an actuating shaft, and a nozzle. The nozzle valve defines a cavity containing a material, and defines an inlet opening on a sidewall thereof to communicate with the cavity. The valve plug is disposed in the cavity. The actuating shaft extends through an end of the nozzle valve, and is connected to the valve plug. The nozzle is disposed at the other end of the nozzle valve facing the actuating shaft. The actuating shaft moves the valve plug away from or closer to the nozzle so as to close or open the inlet opening.

Abstract: A computer enclosure includes a case comprising a drive bracket housing a number of compact disc drives and a storage device module mounted in the drive bracket in the absence of installed disk drives. The storage device module includes a supporting frame fixed in the drive bracket, a backboard, and a number of data storage devices arranged in the supporting frame. The backboard provides connection of the data storage devices to a motherboard of the case.

Abstract: A computer system includes a chassis with a fan installed therein, a cover plate adapted to be attached to the chassis, and a noise absorber attached to the cover plate. The fan is capable of generating an amount of air flow for cooling at least a component in the chassis. The noise absorber includes a plurality of protrusions facing the fan and capable of damping the air flow that impacts the cover plate and decreasing an acoustic noise level of the computer system.

Abstract: A method protects a power button of a computing device. The computing device includes a front panel and a motherboard. The front panel includes a protection switch and a power button. The motherboard includes a power protection unit that displays a power-on simulation icon and a power-off simulation icon on a display screen when the power button is pressed. The power protection unit controls a general-purpose input/output (GPIO) pin of the motherboard to output a first voltage level when the power-off simulation icon is selected, and shuts off the protection switch to enable the power button according to the first voltage level. The power protection unit controls the GPIO pin to output a second voltage level when the power-on simulation icon is selected, and turns on the protection switch to enable the power button according to the second voltage level.

Abstract: A kinetic energy collection device is mounted on a vehicle body. The vehicle body includes drive disks rotated synchronously with wheels of the vehicle body. The kinetic energy collection device includes transmission units, a lift out unit, electrical generators, and an electrical storage. The transmission units are slidably mounted on the vehicle body and include friction disks. The lift out unit includes a braking controller, a pull rod connected with the braking controller, and connection rods rotatably connect the pull rod to the transmission units. The braking controller drives the pull rod to move in response to user's operations, so as to drive the connect rods to rotate, and thus to drive the friction disks of the transmission units to engage or disengage with the drive disks correspondingly. The transmission units drive the electrical generators to generate power. The electrical storage unit stores power generated by the electrical generators.

Abstract: An electronic device includes a main body including a housing. The housing includes a side plate and a bottom plate connected to the side plate. An opening is defined in the side plate. A perforation is defined in the bottom plate. The opening is in alignment with the perforation. A support mechanism is mounted on the inside of the housing and includes a guide pole fixed to the bottom plate, a first threaded pole screwed onto the guide pole, and penetrating the perforation, a second threaded pole screwed onto the guide pole; and an adjusting wheel fixed to the second threaded pole, and located on the opening of the side plate. A portion of the adjusting wheel is exposed from the housing. A support base is fixed to the portion of the first threaded pole exposed from the housing.

Abstract: A method and system for creating an electronic document creates a blank electronic document, and then stores the blank electronic document into the computer according to a designated storage path and a filename. The method and system further receives parameters of template elements, extracts template elements according to the parameters from the storage device, and inserts the template elements into the blank electronic document according to the parameters to create an electronic document template.

Abstract: An electronic device comprising: a main body and a stylus, wherein the main body comprises: a trigger, which is assigned identification information; a socket configured for receiving the stylus, wherein the socket defines a grooves on an inner surface thereof, and the grooves is configured for placement a trigger; and a processing unit configured for recognizing the identification information of the trigger to determine whether to lock or unlock the electronic device; the stylus comprises: a shank and a ring, wherein the ring is extended from the circumferential surface of the shank, a hook is formed in an end of the stylus, and a protrusion is protruded from the circumferential surface of the ring in alignment with the hook and is received in the groove to press the trigger when the stylus is inserted into the socket and the hook is aligned with the trigger.

Abstract: An apparatus for testing strength of a corner portion of an object includes a support platform, an installation mechanism having a slidable plate mounted on the platform, a force gauge fixed to the slidable plate, a drive mechanism connected to the slidable plate to move the slidable plate, and a push-pull mechanism. The push-pull mechanism is connected to the force gauge to be pushed or pulled by the force gauge and exerts push or pull force on the corner portion of the object.

Abstract: A heat sink includes a first fin assembly including a number of first fins, and a second fin assembly including a number of second fins. The second fin assembly can be retracted into the first fin assembly to reduce volume of the heat sink when packing the heat sink, and the second fin assembly can be extend out of the first fin assembly to increase volume of the heat sink when using the first fin assembly for heat dissipation.