Abstract: An electronic device includes a housing defining a number of vents. A suction member is mounted in the housing and includes a hollow air guiding tube defining a plurality of air holes for a plurality of air shields to selectively shield or unshield each air hole. Two fans are disposed at opposite ends of the air guiding tube and aligned with the plurality of vents of a side plate. A number of electronic components which require cooling are mounted and located at each side of the suction member and the air shields can be removed or left in place as required to collect heat which is generated.

Abstract: A photoelectric converting module includes a circuit board, at least one light emitting/receiving unit and an optical coupler both mounted on the circuit board. Each light emitting/receiving unit includes a light emitter and a light receiver, the light emitter and the light receiver each include at least one positioning projection. The optical coupler includes positioning parts to engage with the positioning projections for aligning the optical coupler with the light emitting/receiving unit precisely.

Abstract: An accommodating apparatus configured for accommodating screws and a screw driver includes a sleeve and a support. The sleeve defines a receiving hole, and a sidewall of the sleeve defines a fixing groove in communication with the receiving hole. The support includes an accommodating plate, and the accommodating plate includes two opposing clamping blocks for clamping the screw driver, and a protrusion corresponding to the fixing groove. The accommodating plate has a mounting surface, and the support defines a plurality of through holes in the mounting surface for receiving the screws. The protrusion is releasably-engagable with the fixing groove, thereby enabling the accommodating plate to be received in the receiving hole of the sleeve, and further enabling the accommodating plate to be disengaged from the sleeve.

Abstract: A photoelectric conversion device includes a circuit board, a light emitting module, a light receiving module, and an optical coupling lens. The circuit board includes two positioning portions apart from each other. The light emitting module and the light receiving module are mounted on the circuit board, and are spaced apart from each other. The optical coupling lens includes a bottom surface facing the light emitting module and the light receiving module, two first converging portions formed on the bottom surface, and two locating portions. Centers of the positioning portions are aligned with centers of the locating portions to ensure perfect alignment of the light emitting module and the light receiving module with the first converging portions.

Abstract: A winding assembly includes a first supporting member, a pivot shaft, a driving assembly, and a limiting member. The pivot shaft is partly received in the first supporting member. The pivot shaft is configured to support the adhesive tape coil thereon. The adhesive tape coil is configured to be rotatable relative to the first supporting member. The driving assembly includes a secondary shaft. The secondary shaft is partly received in the first supporting member and capable of moving relative to the first supporting member. A first end of the secondary shaft is exterior to the first supporting member and is configured to couple to the hollow rod. The limiting member is spaced a preset distance from the first supporting member and capable of moving relative to the first supporting member. The limiting member and the first supporting member are configured to cooperatively limit the wound adhesive tape.

Abstract: An electronic device includes a housing, a circuit board, a camera, a coupling wire, and a wire rewinding assembly. The circuit board is received in the housing. The camera is movably mounted on the housing. The coupling wire is electrically coupled to the circuit board and the camera. The wire rewinding assembly includes a driving member mounted on the housing and a wire spool rotated by the driving member. A first end of the coupling wire is electrically coupled to the camera. A second end of the coupling wire is wound on the wire spool and electrically coupled to the circuit board. When the driving member rotates the wire spool, the coupling wire can be unwound or be rewound on the wire spool.

Abstract: A power conversion circuit includes an input port, an output port, a power conversion chip, a path switch, and a protection module. The input port is electrically connected to a power source and the output port is electrically connected to a function module. The power conversion chip includes a voltage input pin electrically connected to the input port and a voltage output pin electrically connected to the output port. The power conversion chip converts the power voltage to an output voltage. The path switch includes a control terminal, a first path terminal connected to the input port, and a second path terminal connected to the voltage input pin. The protection module is connected between the control terminal and the output port, and detects the output voltage on the output port, and turns off the path switch when the output voltage is greater than a predetermined voltage.

Abstract: The disclosure provides a motherboard including a first communication interface and a switch module. The first communication interface obtains a power signal from a second communication interface of a display, the switch module obtains the power signal, and the switch module controls a first power supply to power supply for the USB communication module. The disclosure also provides a computer control system including the motherboard. The motherboard and the computer control system control the computer to save energy via a display.

Abstract: An optical connector includes a main body, a ribbon fiber and a ribbon fiber holder. The main body includes a bottom surface, and a mounting surface facing away from the bottom surface. The bottom surface arranged with a plurality of first lenses, the mounting surface is arranged with a number of second lenses corresponding with each second lens. The ribbon fiber includes a number of optical fibers arranged in an array, each optical fibers is corresponded with one of second lenses. Each optical fiber includes an incident surface, an angle between the incident surface and a horizontal surface is about 45 degrees. The ribbon fiber holder is matched with the main body and configured for clamping the ribbon fiber to make each second optical lens being located under the optical fiber and aligned with the incident surface of each optical fiber.

Abstract: An optical communication device includes a circuit board, a light-emitting element, a light-receiving element, and a planar light guide circuit. The circuit board includes an upper mounting surface. The upper mounting surface defines a groove. The groove includes a first inclined surface and a second inclined surface. The first and the second inclined surfaces are slanted relative to a bottom surface of the groove and connected between the upper mounting surface and the bottom surface. A reflection layer is coated on the first and second inclined surfaces. The light-emitting element includes a light emergent surface, and the light-receiving element includes a light incident surface. The light-emitting element and the light-receiving element are mounted on the upper mounting surface. The planar light guide circuit is received in the groove. Two ends of the planar light guide circuit face reflection layers of the first inclined surface and the second inclined surface, respectively.

Abstract: A computing device compensates a coordinate of a position device for a computerized numerical control (CNC) machine. The computing device generates a point cloud according to contour points of the position device. The computing device deletes selected contour points from the point cloud upon the condition that the distance corresponding to each selected contour point exceeds a predetermined threshold. The computing device calculates an average coordinate of the contour points which are remained in the point cloud.

Abstract: A connecting circuit includes a motherboard, a first back panel, and a second back panel. The motherboard defines a first connector and a second connector. The first connector includes a first address distinguishing pin. The second connector includes a second address distinguishing pin. The first back panel is coupled with the first connector and transmits a first address signal to the first connector. The second back panel is coupled with the second connector and transmits a second address signal to the second connector. The first address distinguishing pin is connected to ground and the second address distinguishing pin is connected to a high level voltage to distinguish the first address signal from the second address signal.

Abstract: A controller initializing device and method is configured to initialize controllers. When a device is powered on, a basic input and output system of the device initializes a first chip of the device. The basic input and output system starts a power on self test and initializes a first controller of the device. The basic input and output system outputs a trigger signal when the power on self test of the basic input and output system ends. A baseboard management controller of the device accesses the first controller when the baseboard management receives the trigger signal.

Abstract: A cylinder mechanism includes a cylinder body, a piston pole slidably installed to the cylinder body, a connecting member mounted to the piston pole away from the cylinder body, and an adjusting apparatus. The cylinder body includes two tabs protruding out from two side surfaces of the cylinder body. Each tab defines a guiding hole extending along a moving direction of the piston pole. The adjusting apparatus includes two screws and two adjusting nuts fitting about the two screws. A first end of each screw is mounted to the connecting member, and a second end of each screw is passed through the corresponding guiding hole. Each adjusting nut is connected to the second end of the corresponding screw, and the adjusting nut is configured to abut against the corresponding tab. The stroke of the piston pole is configured to adjust according as rotating the adjusting nuts.

Abstract: A positioning device includes a main body, a drive member, and a pin assembly. The main body defines a receiving portion which extends through two opposite ends of the main body. The drive member is partially or completely received in the receiving portion. The pin assembly includes a pin bushing and a pin. The pin bushing is securely coupled to the main body and defines an expansion slot on the sidewalls. The expansion slot extends along a central axis of the pin bushing. The pin is coupled to the drive member and extends through the pin bushing. The drive member is configured to drive the pin to move in the pin bushing, pressing the inner sidewalls of the pin bushing to enlarge a diameter.

Abstract: A method for patching up a point cloud comprises obtaining a point cloud and a predetermined interval and a filtering parameter of curvature. Then a void in the point cloud which needs to be patched up is identified. A minimum encasing box is created to enclose the void. Points inside the minimum encasing box and outside the void are selected to create a B-spline curve surface. The B-spline curve surface are interpolated by the predetermined interval to obtain a plurality of discrete points which are used to patch up the void. Messy points in the void according to the predetermined interval and the filtering parameter of curvature are determined and deleted. Positions of the points in the void are adjusted along their normal vector directions to smooth the point cloud.

Abstract: An apparatus for fixing an optical fiber hole insert in coordinate measurement, is provided. The apparatus includes a main body and a cover plate. The main body includes a front side surface, a back side surface and a support surface, a plurality of first grooves formed in the support surface and exposed at the front side surface, a plurality of second grooves formed in the support surface and exposed at the back side surface, and a through hole defined in the support surface. The first grooves are aligned with the respective second grooves, the first and second grooves communicate with the through hole and are configured for cooperatively receiving the optical fiber hole insert. The cover plate is configured for covering the support surface and making contact with the optical fiber hole insert. A method for measuring the optical fiber hole insert using the apparatus is also provided.

Abstract: An electronic device includes a host module and a first expansion module. The first expansion module has a first wall and a second wall substantially parallel to the first wall. A host connector is located on the second wall. The first expansion module includes a first coupling wall and a first expansion wall substantially parallel to the first coupling wall. A first coupler is located on the first coupling wall. The first expansion module can be stacked on the host module where the first coupling wall contacts the second wall. The first coupler is electrically and detachably coupled to the host connector.

Abstract: A packing box can include a first cover, a second cover, a first sidewall, a second sidewall, a third sidewall, a fourth sidewall, and a bulkhead. The first cover and the second cover can be opposite to each other. The four sidewalls can be sequentially coupled end-to-end. The bulkhead can be received in the main box and be substantially parallel to the first cover and the second cover. Four edges of the bulkhead can be coupled to the four sidewalls, respectively. An inner receiving space of the main box can be divided into a first receiving cavity and a second receiving cavity by the bulkhead. A number of receiving portions can be defined on a surface of the packing box facing the first receiving cavity.

Abstract: A circuit board includes a substrate defining a plurality of ground attaching holes and a plurality of first through-holes. The substrate includes a first surface and a side edge. Wherein, a plurality of parallel and spaced first conductive paths is formed on the first surface around each ground attaching hole. A first arcuate conductive portion is formed at each end of each first conductive path. An angle between each first conductive path and the side edge is 45° or 135°. The first through-holes respectively extend through the first arcuate conductive portions and electrically couple with the first conductive paths.