Abstract: A solenoid valve includes a valve body having a valve cavity, a first delivery tube having a first tube cavity, a second delivery tube having a second tube cavity, and an electromagnetic member connected to the valve body. The first delivery tube is connected to the valve body at one end and the first tube cavity is in communication with the valve cavity. The second delivery tube is connected to the valve body at one end and the second tube cavity is in communication with the valve cavity. At least one of the first delivery tube and the second delivery tube is a bent tube. The electromagnetic member is configured to control communication and disconnection of the first delivery tube and/or the second delivery tube with the valve cavity.

Abstract: An assembly system includes a feeding mechanism adapted to feed a heat shrinkable tube, a cutting mechanism, a clamping mechanism, a robot, and a vision system. The cutting mechanism is adapted to cut off a section of heat shrinkable tube with a predetermined length from the heat shrinkable tube fed by the feeding mechanism. The clamping mechanism is adapted to clamp the heat shrinkable tube during cutting the heat shrinkable tube with the cutting mechanism. The robot is adapted to grip the section of heat shrinkable tube cut off from the heat shrinkable tube. The vision system is adapted to guide the robot to sleeve the section of heat shrinkable tube onto a wire of an electrical device.

Abstract: A welding system for welding a first elongated element and a second elongated element together by a laser beam that is emitted from a laser welding head after the ideal welding center point of the aligned first and second elongated elements has been positioned at a focal point of the laser beam that is emitted from the laser welding head.