Abstract: A shell of an electronic device includes an inner surface and an outer surface opposite to the inner surface. The inner surface defines at least one recessed portion. The at least one recessed portion includes a bottom surface and a transition surface connecting the bottom surface with the inner surface.

Abstract: An electronic device includes a circuit board and a navigation key arranged on the circuit board. The circuit board forms a number of switches thereon. The navigation key includes a key cap, a frame, and a number of elastic connecting arms The key cap includes an annular operating portion configured for pressing, and a number of actuators extending from the operating portion towards the circuit board. Each actuator hangs above one corresponding switch, and contacts with the corresponding switch when the operation portion of the navigation key is pressed. The frame is arranged around the key cap, and is fixedly assembled to the circuit board. The elastic connecting arms interconnect the operation portion of the key cap and the frame to limit rotation of the key cap.

Abstract: A cable immobilizing device for an electronic device. The cable immobilizing device includes a buckle and a sleeve. The buckle is fixed on a shell of the electronic device. The buckle includes two juts facing to each other. The two juts define a slot therebetween to receive a cable of the electronic device. The sleeve is configured to enclose the cable, the outer diameter of the sleeve is lager than the width of the slot.

Abstract: An optical disk drive includes a main body defining a receiving space and a pivotable cover. A latching mechanism that contacts the cover at two points distributes stresses better than where the latching mechanism only contacts the cover at one point.

Abstract: An electronic device includes a main body, a lid body, a hinge, a notch, and a cable. The main body includes a connecting side where the lid body is pivotally mounted to the main body. The hinge is disposed on the connecting side for mounting the lid body to the main body, and includes a fixing frame mounted to one of the main body and the lid body and a pivot member mounted to the other of the main body and the lid body. The notch is defined on one side of the pivot member. The cable extends along the notch and transmits electrical signals between the main body and the lid body.

Abstract: An infrared receiver includes a shielding member and an infrared detecting member. The shielding member has negative refractive power for diverging incident infrared rays. The infrared detecting member includes a main body formed with a convex surface having positive refractive power and an infrared sensor enclosed in the main body. The infrared sensor receives infrared rays converged by the convex surface, and converts received infrared rays to electrical signals.

Abstract: An electronic device includes a main body, a lid body, a hinge, a notch, and a cable. The main body includes a connecting side where the lid body is pivotally mounted to the main body. The hinge is disposed on the connecting side for mounting the lid body to the main body, and includes a fixing frame mounted to one of the main body and the lid body and a pivot member mounted to the other of the main body and the lid body. The notch is defined on one side of the pivot member. The cable extends along the notch and transmits electrical signals between the main body and the lid body.

Abstract: An external optical disk drive (99) includes a bottom housing (10), a top housing (20) coupled to the bottom housing, and a cover (40) pivotably connected to the top housing. The cover is provided with a hinge member (42). An engaging piece (424) is provided on the hinge member. A torsion spring (50) is biased between the top housing and the cover. A damping unit (32) is provided between the top housing and the bottom housing. When the cover is pivoted from a closed state to an open state, the engaging piece engages interferentially with the damping unit, and a frictional force is generated between the engaging piece and the damping unit to slow down a rotating speed of the cover to cause the cover to stop at the open state without vibration.

Abstract: An infrared receiver includes a shielding member and an infrared detecting member. The shielding member has negative refractive power for diverging incident infrared rays. The infrared detecting member includes a main body formed with a convex surface having positive refractive power and an infrared sensor enclosed in the main body. The infrared sensor receives infrared rays converged by the convex surface, and converts received infrared rays to electrical signals.

Abstract: A fastening structure for fastening a hardware component is disclosed. The fastening structure includes a supporting portion defining a through stepped hole including a small-diameter hole and a large-diameter hole. Furthermore, the fastening structure includes a nut wedged into the large-diameter hole. A screw may successively passing through the hardware component and the small-diameter hole to screwably engage with the nut.

Abstract: An optical disk drive includes a main body defining a receiving space and a pivotable cover. A latching mechanism that contacts the cover at two points distributes stresses better than where the latching mechanism only contacts the cover at one point.

Abstract: An electronic device includes a circuit board and a navigation key arranged on the circuit board. The circuit board forms a number of switches thereon. The navigation key includes a key cap, a frame, and a number of elastic connecting arms The key cap includes an annular operating portion configured for pressing, and a number of actuators extending from the operating portion towards the circuit board. Each actuator hangs above one corresponding switch, and contacts with the corresponding switch when the operation portion of the navigation key is pressed. The frame is arranged around the key cap, and is fixedly assembled to the circuit board. The elastic connecting arms interconnect the operation portion of the key cap and the frame to limit rotation of the key cap.

Abstract: An electronic apparatus (10) includes a main body (30), a lid (20) pivotably connected with a side of the main body, a magnetic detecting unit (40) and a magnetic shield member (28). The detecting unit includes a magnetic body (42) mounted on one of the main body or the lid and a magnetic detector (44) mounted on the other one of the main body or the lid, respectively. The magnetic body has a facing side (421) to face the magnetic detector. The magnetic detector detects a position of the lid according to a magnetic field intensity of the magnetic body. The magnetic shield member is disposed at a distance from the facing side and adjacent to a second side (422) of the magnetic body, to prevent the magnetic field from extending in the direction of the second side of the magnetic body.