Patent ID: 7173818
Filing Date: 2007-02-06
Classification: G06F

Abstract:
1. A coupling structure for a handheld electronic device and a back cartridge thereof, comprising: a first coupling assembly, which is located on the handheld electronic device, has a first opening and a first trough, and the first opening corresponding to a first connector which is located in the handheld electronic device; and a second coupling assembly, which is located in the back cartridge, corresponds to the first coupling assembly, and includes a second opening, a second trough, a housing trough and a claw, whereby the second opening corresponds to the first opening and the housing trough, the second trough corresponds to the first trough, the housing trough contains a second connector of the back cartridge that connects electrically to an expansion device located in the back cartridge, the claw corresponds to the second trough, and the housing trough and the claw have a coupled position and a stored position; whereby at the coupled position, the housing trough and the claw are extended respectively through the second opening and the second trough to allow the claw to clamp the first trough, and make the first connector to connect electrically to the second connector, and allow the handheld electronic device to couple with the back cartridge, whereby at the stored position, the housing trough and the claw are held respectively in the second opening and the second trough to close the second opening and the second trough, and allow the handheld electronic device to be separated from the back cartridge.