Abstract: A mobile terminal protection frame (100), comprising a frame body (120), a first snap-in part (140), a second snap-in part, and a connecting part; the frame body (120) surrounds the edge of a mobile terminal (20); an opening (122) used for insertion of a plug (240) of a battery case (200) is formed on the frame body (120) and corresponds to a charging port of the mobile terminal (20). The first snap-in part (140) is fixedly connected on one side of the frame body (120) and is used for snapping the front surface of the mobile terminal (20). The second snap-in part is fixedly connected on the other side of the frame body (120) and is used for snapping the back surface of the mobile terminal (20). The connecting part is fixedly connected with the second snap-in part and can be detachably connected with the battery case (200).

Abstract: A mobile terminal protection sleeve (100), comprising a sleeve body (120), communication terminals (140), an internal lead, a flexible data line (160), and a flexible connector (180). The sleeve body (120) can surround the edge of the mobile terminal, and is provided with a plurality of terminal accommodating holes and an opening, and the opening corresponds to the communication interface of the mobile terminal. A plurality of communication terminals (140) is provided for communicationally connected to an external device (200). The plurality of communication terminals (140) are embedded in the plurality of terminal accommodating holes in one-to-one correspondence. The internal lead is wrapped in the sleeve body (120), and one end of the internal lead is electrically connected with the communication terminals (140). One end of the flexible data line (160) is connected with the sleeve body (120), and the other end of the internal lead is electrically connected with the flexible data line (160).