Abstract: The present invention provides a permanent magnet-electromagnet synergistic coupling-based high-speed solenoid valve with a high dynamic response and a low rebound, including a shell and an iron core. The iron core is installed in the shell, an axial center through hole is formed in a middle of the iron core, a spring limiting sleeve is installed in the axial center through hole, an armature and a reset spring cavity are sequentially formed below the iron core, an upper portion of a valve rod is located in the spring limiting sleeve, an upper disc permanent magnet, a lower disc permanent magnet and a spring washer are arranged in the spring limiting sleeve, and a giant magnetostrictor is installed between the upper disc permanent magnet and the lower disc permanent magnet. By means of the present invention, electromagnetic force generated during pickup of the armature can be effectively improved.

Abstract: Disclosed is a waterproof and shakeproof electronic smart recreational vehicle lock, comprising a lock body and an inner handle assembly connected with the lock body; the lock body comprises a base, a fixed cover, a first locking structure and a second locking structure, the fixed cover and the base are assembled in a buckled mode, and a mounting cavity is formed between the fixed cover and the base; and the inner handle assembly is mounted on a back surface of the fixed cover, the inner handle assembly comprises an inner plate, an inner handle and an unlocking knob, the inner plate is connected with the fixed cover, the inner handle is assembled and connected with the first locking structure, and the unlocking knob is assembled and connected with the second locking structure. The electronic recreational vehicle lock has the characteristics of high sealing and waterproof performance and shaking resistance.

Abstract: The present disclosure proposes an intelligent device that comprises a body comprising a controller and a first interface; the controller is in connection with the first interface; the body of the intelligent device is connected with an external device via the first interface; different external devices are connected with the body of the intelligent device to form various intelligent devices so as to meet the use requirements in different scenes.