Abstract: An electronic device includes a metal back cover, a metal frame, and a first, second, third, and fourth radiators. The metal frame includes a discrete part and two connection parts. The connection parts are located by two sides of the discrete part, separated from the discrete part, and connected to the metal back cover. A U-shaped slot is formed between the discrete part and the metal back cover and between the discrete part and the connection parts. The first radiator is separated from the discrete part and includes a feed end. The second, third, and fourth radiators are connected to the discrete part and the metal back cover. The third radiator is located between the first and second radiators. The first radiator is located between the third and fourth radiators. The discrete part and the first, second, third, and fourth radiators form an antenna module together.

Abstract: An electronic device including a metal back cover, a metal frame, a first radiator and a second radiator is provided. The metal frame includes a disconnected part and two connecting parts, the two connecting parts are located at two sides of the disconnected part, separated from the disconnected part and connected to the metal back cover. A U-shaped slot is formed between the disconnected part and the metal back cover, and between the disconnected part and the two connecting parts. The first radiator is located beside the disconnected part and includes a feeding end and a first connecting end away from the feeding end, and the first connecting end is connected to the disconnected part. The second radiator is located beside the disconnected part, and includes a ground end and a second connecting end opposite to each other. The ground end is connected to the metal back cover.

Abstract: An electronic device, including a metal back cover, a ground radiator, a third radiator, and a metal frame including a first cutting opening, a second cutting opening, a first radiator located between the first cutting opening and the second cutting opening, and a second radiator located beside the second cutting opening and separated from the first radiator by the second cutting opening, is provided. An end of a first slot formed between the metal back cover and a first part of the first radiator is communicated with the first cutting opening, and a second slot formed between the metal back cover and a second part of the first radiator and between the metal back cover and the second radiator is communicated with the second cutting opening. The ground radiator connects the metal back cover and the first radiator and separates the first slot from the second slot.

Abstract: An electronic device including a metal housing, a first antenna module, and a second antenna module is disclosed. The metal housing includes a back cover and a frame, the frame is located on a side of the back cover, and a slot is arranged between the back cover and the frame. The frame includes two slits and a segment, and the two slits are connected with the slot to form a U shape. The segment is surrounded by the two slits and the slot. The first antenna module includes an antenna radiator formed by the segment. The antenna radiator is coupled to the back cover across the slot through multiple connecting portions. The second antenna module is disposed on the connecting portions to be coupled to the back cover and grounded, and an antenna coupling gap exists between the second antenna module and the frame.

Abstract: An assembly for connecting plates is provided. A first plate has a first opening and a second opening; a metal wire is movably connected to one surface of the first plate, and the metal wire includes a bending portion corresponding to the position of the first opening; a spring connects the first plate and the metal wire; a pressing element is fixed on the metal wire and passes through the second opening of the first plate to protrude from the other surface of the first plate. The second plate has a hook. When the first plate and the second plate are assembled, the hook of the second plate passes through the first opening of the first plate, and the bending portion of the first plate prevents the hook from separating from the first opening by tension force of the spring thus to connect the first plate and the second plate.

Abstract: An assembly for connecting plates is provided. A first plate has a first opening and a second opening; a metal wire is movably connected to one surface of the first plate, and the metal wire includes a bending portion corresponding to the position of the first opening; a spring connects the first plate and the metal wire; a pressing element is fixed on the metal wire and passes through the second opening of the first plate to protrude from the other surface of the first plate. The second plate has a hook. When the first plate and the second plate are assembled, the hook of the second plate passes through the first opening of the first plate, and the bending portion of the first plate prevents the hook from separating from the first opening by tension force of the spring thus to connect the first plate and the second plate.

Abstract: An electronic device has a removable module installed inside. The removable module includes a first surface and a second surface. The first surface is adjacent to the second surface. At least one first fastener is disposed on the first surface. At least one second fastener is disposed on the second surface. A printed circuit board and at least one track are installed in the housing. At least one rail has at least one third fastener and fourth fastener. The third fastener is inserted into the first fastener. The fourth fastener is inserted into the second fastener. The rail is disposed between the track and the removable module.

Abstract: An electronic device retention apparatus for fixing an electronic device with a first mounting hole and a second mounting hole includes a fixed case, a mounting piece, and a flexible structure. The fixed case has an entrance, a first opening, and a second opening. One end of the mounting piece near the entrance is coupled to the fixed case, and another end is connected to the fixed case with the flexible structure. The mounting piece has a guide flange with a contact surface disposed corresponding to the first opening. When the electronic device is contacting the contact surface, the mounting piece is lifted up until the guide flange mounted on the first mounting hole. The mounting piece further has a mounting flange disposed corresponding to the second opening to be mounted with the second mounting hole.

Abstract: An electronic device retention apparatus for fixing an electronic device with a first mounting hole and a second mounting hole includes a fixed case, a mounting piece, and a flexible structure. The fixed case has an entrance, a first opening, and a second opening. One end of the mounting piece near the entrance is coupled to the fixed case, and another end is connected to the fixed case with the flexible structure. The mounting piece has a guide flange with a contact surface disposed corresponding to the first opening. When the electronic device is contacting the contact surface, the mounting piece is lifted up until the guide flange mounted on the first mounting hole. The mounting piece further has a mounting flange disposed corresponding to the second opening to be mounted with the second mounting hole.

Abstract: An electronic device has a removable module installed inside. The removable module includes a first surface and a second surface. The first surface is adjacent to the second surface. At least one first fastener is disposed on the first surface. At least one second fastener is disposed on the second surface. A printed circuit board and at least one track are installed in the housing. At least one rail has at least one third fastener and fourth fastener. The third fastener is inserted into the first fastener. The fourth fastener is inserted into the second fastener. The rail is disposed between the track and the removable module.

Abstract: A computer with a detachable case is disclosed to include a second case member abutted to a first case member, a rotating member pivoted to the second case member and rotatable between a first position and a second position. When the rotating member is on the second position, a spring member of the second case member is adapted to impart a pulling force to the rotating member to pull the rotating member from the second position to the first position. A second retaining portion of the second case member is forced into engagement with the first retaining portion of the first case member when the rotating member is turned to the first position. The second retaining portion is disengaged from the first retaining portion when the rotating member is turned to the second position.