Abstract: Some embodiments of the present disclosure provide an electromagnetic valve. The electromagnetic valve includes: a valve cover and a valve core, the valve core being installed in the valve cover; a first sealing structure and a sealing sleeve, the sealing sleeve being installed at one end of the valve cover, and the first sealing structure being arranged at an end of the sealing sleeve close to the valve cover and forms a valve port; and a driving assembly, the driving assembly driving the valve core to move along an axial direction to open or close the valve port, there is a hardness difference between a part matched with the valve core on the first sealing structure and the valve core. The present disclosure solves the problem of medium leakage at the valve port easily occurring when a valve core blocks a valve port in the art known to inventors.

Abstract: Some embodiments of this application provides a reversing valve and a heat exchange system having the same. The reversing valve includes: a valve seat having a first flow channel, a second flow channel, a third flow channel, and a fourth flow channel; a first valve body controlling communication between the first flow channel and the third flow channel; a second valve body controlling communication between the first flow channel and the fourth flow channel; a third valve body controlling communication between the third flow channel and the second flow channel. When the reversing valve is in a first operation state, the second valve body controls the first flow channel to communicate with the fourth flow channel. When the reversing valve is in a second operation state, the first valve body controls the first flow channel to communicate with the third flow channel.

Abstract: An electromagnetic valve and an electromagnetic valve assembly are provided. The electromagnetic valve includes a first elastic member. An end of the first mounting cavity proximal to the valve port is provided with a limiting portion integrated with the valve body, the first elastic member is sleeved on the plugging assembly. One end of the first elastic member abuts against the plugging assembly, the other end of the first elastic member abuts against the valve body, and an outer surface of the other end of the first elastic member abuts against the limiting portion.