Abstract: An electronic device includes a middle frame, an antenna board, and a fastener. The middle frame is provided with a mounting cavity, and an inner wall of the mounting cavity is provided with a limiting portion. The antenna board is placed in the mounting cavity, and the fastener is capable of being clamped between the limiting portion and an upper end face of the antenna board, to restrict the antenna board from moving upward along a depth direction of the mounting cavity. This application can resolve a problem of operation inconvenience in antenna board mounting when a mounting space for mounting the antenna board is small, and can further resolve a problem that a peripheral component is easily damaged in a mounting process.

Abstract: An electronic device and an electronic device assembly method. A through hole is provided in a rear cover. An inner wall of the through hole protrudes to form an annular flange. A camera decorative member is designed to include an inner decorative member and an outer decorative member. The outer decorative member is arranged on a side of the rear cover facing away from a middle frame and is connected to the annular flange by a bonding layer, and the inner decorative member is fastened to a side of the outer decorative member facing the middle frame, so that a gap between the outer decorative member and the annular flange can be blocked by the bonding layer, and the bonding layer is used for sealing to prevent water in an external environment from entering the electronic device through space between the outer decorative member and the rear cover.

Abstract: An electronic assembly includes a first electronic component, a second electronic component, and a primary circuit board. The first electronic component is provided with a first secondary circuit board, the second electronic component is provided with a second secondary circuit board, the first secondary circuit board is electrically connected to the primary circuit board by using a first electrical connector, interlayer space is formed between the first secondary circuit board and the primary circuit board, a portion of the second secondary circuit board that enters the interlayer space overlaps the first secondary circuit board and is electrically connected to the primary circuit board by using a second electrical connector, the first electrical connector is located between the first secondary circuit board and the primary circuit board, and the second electrical connector is located between the second secondary circuit board and the primary circuit board.

Abstract: A camera decoration part, fabrication method, and electronic device. The camera decoration part includes a first plate and a second plate; a first surface of the first plate has a decoration rendering; a second through-hole corresponding to a first through-hole is disposed on the second plate; a first surface of the second plate includes a connection area and an avoidance area, where the avoidance area is formed by recessing the first surface of the second plate to a second surface of the second plate by a first depth, a thickness of the second plate is greater than or equal to a height of a protrusion on a housing of the electronic device, the first depth is greater than or equal to the height of the protrusion, and a projection of the protrusion is in a projection area of the avoidance area.

Abstract: An electronic device includes a middle frame, an antenna board, and a fastener. The middle frame is provided with a mounting cavity, and an inner wall of the mounting cavity is provided with a limiting portion. The antenna board is placed in the mounting cavity, and the fastener is capable of being clamped between the limiting portion and an upper end face of the antenna board, to restrict the antenna board from moving upward along a depth direction of the mounting cavity. This application can resolve a problem of operation inconvenience in antenna board mounting when a mounting space for mounting the antenna board is small, and can further resolve a problem that a peripheral component is easily damaged in a mounting process.

Abstract: Embodiments of this application provide a rear cover of an electronic device, an electronic device, and an air tightness detection system of an electronic device. The electronic device may include a mobile or fixed terminal having waterproof performance such as a mobile phone, a tablet computer, or a notebook computer. The rear cover includes a body portion and a structure layer fixed to a rear surface of the body portion. A smooth detection plane is formed on a rear surface of the structure layer, and a rear end of a balance channel of the rear cover is located within the detection plane, thereby resolving the problem that the material of the rear cover affects air tightness detection on the electronic device.