Abstract: An infrared sensing module includes a reflecting portion, a driving portion, an infrared light emitter and an infrared light receiver. The driving portion is connected to the reflecting portion, and the driving portion drives the reflecting portion to rotate, and an infrared reflecting layer of the reflecting portion faces the infrared light emitter and the infrared light receiver when the reflecting portion rotates to a preset position.

Abstract: An electronic device, which relates to the field of terminal technologies, and includes a housing, a support, a mainboard, a loudspeaker module, and a first sealing member, where the mainboard is disposed on the housing, the support is disposed on the mainboard, a groove is provided on a side of the support close to the mainboard, at least part of the loudspeaker module is disposed between the support and the housing, a first side wall of the loudspeaker module, the support, the mainboard, and the housing enclose and form a first sound cavity of the loudspeaker module, the first sound cavity includes at least part of the groove, and at least part of the first sealing member is located between the support and the mainboard.

Abstract: An electronic device that relates to the technical field of display screens is provided. The electronic device includes a first display screen, a second display screen, and a hinge mechanism. The hinge mechanism includes a support piece and two rotating components disposed in parallel along an axis. Each of the rotating components includes a drive shaft, a drive gear, and two locking components. The drive gear is fixedly disposed on a central area of the drive shaft. The first display screen is fixedly connected to the drive shaft of one of the rotating components, and the second display screen is fixedly connected to the drive shaft of the other rotating component. Each of two ends of the drive shaft is connected to the support piece by using one of the locking components.

Abstract: An infrared sensing module includes a reflecting portion, a driving portion, an infrared light emitter and an infrared light receiver. The driving portion is connected to the reflecting portion, and the driving portion drives the reflecting portion to rotate, and an infrared reflecting layer of the reflecting portion faces the infrared light emitter and the infrared light receiver when the reflecting portion rotates to a preset position.