Abstract: An electrical connection structure includes a body-end connection apparatus and a band-end connection apparatus. A first metal connection terminal included in the body-end connection apparatus is disposed on a first frame; a first sealing apparatus is configured to perform sealing between the first frame and the wearable device; a second frame included in the band-end connection apparatus is configured to connect to a band of the wearable device; and a second metal connection terminal is disposed on a frame and electrically connected to the band of the wearable device. When the band of the wearable device is connected to a body, the first metal connection terminal is electrically connected to the second metal connection terminal, the first frame clutches the second frame, and the second sealing apparatus is configured to perform sealing between the first frame and the second frame.

Abstract: A mobile terminal and a mobile terminal antenna production method. The mobile terminal uses an insulation film layer on an insulation rear housing as a carrier of a radiating element of an antenna, and the radiating element is located within the entire mobile terminal, thereby effectively increasing a height of the radiating element of the antenna relative to a circuit board with the antenna not affecting an appearance of the mobile terminal. Compared with a conventional support solution, this manner can increase a height of about 0.2 mm to 0.6 mm This reduces an impact caused by a metal component on the circuit board on antenna radiation, and further increases a bandwidth and efficiency of the antenna so that the antenna can cover a frequency band used in a handheld communications system.

Abstract: A wearable device includes a main body and a wristband. The main body includes a main case and a bottom cover, a spring bar is disposed on the wristband, a connection member configured to couple to the spring bar is disposed on the main case and has two connection lugs, an accommodating hole is provided on each connection lug, one end of the accommodating hole has an opening, the other end of the accommodating hole is provided with a limiting portion, the limiting portion is provided with a through hole, a locating groove is provided on the connection lug, a button is disposed on the connection lug, the button is slidably disposed in the accommodating hole, a limiting groove is provided on the button, a limiting portion is disposed on the bottom cover, and the limiting portion is located in the locating groove and extends into the limiting groove.

Abstract: A wearable device includes a main body and a wristband. The main body includes a main case and a bottom cover, a spring bar is disposed on the wristband, a connection member configured to couple to the spring bar is disposed on the main case and has two connection lugs, an accommodating hole is provided on each connection lug, one end of the accommodating hole has an opening, the other end of the accommodating hole is provided with a limiting portion, the limiting portion is provided with a through hole, a locating groove is provided on the connection lug, a button is disposed on the connection lug, the button is slidably disposed in the accommodating hole, a limiting groove is provided on the button, a limiting portion is disposed on the bottom cover, and the limiting portion is located in the locating groove and extends into the limiting groove.

Abstract: An unlocking apparatus which includes a circuit board, a snap-on structure, and a shape memory alloy strip. The circuit board is configured to supply power to the shape memory alloy strip, the snap-on structure is fixedly connected to the shape memory alloy strip, and after being powered on, the shape memory alloy strip deforms, so that the snap-on structure is driven to move and to be unbuckled from a card slot of a locked component. In the foregoing structure, components for driving unlocking are merely the shape memory alloy strip and the circuit board supplying power to the shape memory alloy strip, greatly simplifying the entire unlocking structure.