Abstract: A replaceable panel structure and a panel replaceable moisture sensor, socket, and switch having the replaceable panel structure. The replaceable panel structure includes a base, and a panel body mounted on the base by using several snap structures. The snap structure comprising a slide slot and an engagement portion disposed on the base or the panel body, and a slide fastener disposed on the panel body or the base, the slide fastener is suitable to be inserted in the slide slot and slide back and forth in the slide slot to be engaged with or separated from the engagement portion, and the slide fasteners of the snap structures have consistent sliding directions in the slide slot. The replaceable panel structure replaces the panel and the base in a sliding manner, and has advantages of a simple structure, convenient removal, and stable engagement.

Abstract: A replaceable panel structure and a socket, switch and humidity sensor with the replaceable panel. The replaceable panel structure includes a base, and a panel main body which is replaceably mounted on the base by a snap structure having first snap structures and second snap structures, wherein each of the first snap structures includes a first elastic snap disposed on the panel main body and a stop block disposed on the base, a first slot fitted with the first elastic snap being formed on one side of the stop block away from the panel main body, the first elastic snap being deformed due to the stop of the stop block and then snapped into or released from the first slot; each of the second snap structures includes a second snap disposed on the panel main body and a second slot disposed on the base and fitted with the second snap, the second snap being able to be inserted into or released from the second slot in a horizontal direction.

Abstract: A USB socket includes a socket body, an upper cover, at least one USB interface disposed in the socket body, and a power supply conversion structure for converting an external power supply to a power supply suitable for output of the USB interface. A USB jack is disposed on the upper cover at a position corresponding to the USB interface, the upper cover is detachably mounted on the socket body, the USB interface is mounted at a lower side of the upper cover, and when the upper cover is mounted to the socket body, the USB interface inserts into the socket body. A moving contact is electrically connected to the USB interface, a fixed contact electrically connected to the power supply conversion structure is further disposed in the socket body and the moving contact is driven to be in contact conduction with the fixed contact.