Abstract: A magnetic attraction-fixing assembly and a rotating support structure for a portable device are provided. The magnetic attraction-fixing assembly includes two magnetic units, the two magnetic units stacked with and attracting each other; wherein each of the magnetic units respectively comprises a circular magnetic component and at least one annular magnetic component around the circular magnetic component, a magnetic pole of the circular plane of the circular magnetic component is an unlike pole to a magnetic pole of an annular plane of the annular magnetic component that is adjacent to the circular magnetic component. The rotating support structure comprises two magnetic units and a body. Magnetic attractions in both radial and axial directions are enhanced.

Abstract: Provided is a magnetic attraction-fixing assembly and a rotating support structure for a portable device. The magnetic attraction-fixing assembly comprises two magnetic units, the two magnetic units stacked with and attracting each other; wherein each of the magnetic units respectively comprises a circular magnetic component and at least one annular magnetic component around the circular magnetic component, a magnetic pole of the circular plane of the circular magnetic component is an unlike pole to a magnetic pole of an annular plane of the annular magnetic component that is adjacent to the circular magnetic component. The rotating support structure comprises two magnetic units and a body. Magnetic attractions in both radial and axial directions are enhanced.

Abstract: A magnetic attraction-fixing assembly and a rotating support structure for a portable device are provided. The magnetic attraction-fixing assembly includes two magnetic units, the two magnetic units stacked with and attracting each other; wherein each of the magnetic units respectively comprises a circular magnetic component and at least one annular magnetic component around the circular magnetic component, a magnetic pole of the circular plane of the circular magnetic component is an unlike pole to a magnetic pole of an annular plane of the annular magnetic component that is adjacent to the circular magnetic component. The rotating support structure comprises two magnetic units and a body. Magnetic attractions in both radial and axial directions are enhanced.

Abstract: The present invention provides a detachable rotary extended keyboard plate, which includes a sleeve member, and the sleeve member includes: a bottom plate having one end formed with an engaging sheet, after the engaging sheet is rotated, the additional space formed on the bottom plate allows a portable electronic device to stand in a multi-angle manner; a support sheet; a combination sheet; at least a first fasten device disposed on the engaging sheet or the combination sheet; and at least a second fasten device disposed on the keyboard and corresponding to the location where the first fasten device is disposed, the second fasten device is able to be combined with the first fasten device for enabling the keyboard to be fastened on the engaging sheet.