Introduction to Vacuum Pumps
The vacuum pump is a device that transmits a variable volume gas through the rotation of the pump body. It is matched by the foreline pump and has a large pumping speed under the premise of ensuring a wide pressure range.
It is mainly divided into dry screw vacuum pump, water ring pump, reciprocating pump, slide valve pump, rotary vane pump, Roots pump and diffusion pump. Main pump type. In order to improve the performance of the vacuum pump, the Shenyang Scientific Instrument and Instrument Research Institute of the Chinese Academy of Sciences has optimized the vacuum pump. The shielded motor is used as the power source of the vacuum, which ensures the safe and reliable operation of the vacuum pump.
The conventional vacuum pump is a leak-proof motor connected to the pump to ensure that the vacuum pump operates in a vacuum environment. This kind of motor is injected with epoxy resin between the stator slot and the lamination of the motor to ensure that the stator is isolated from the external environment. However, there is a shortcoming that the injection pressure between the laminations of the stator core reduces the lamination coefficient, increases the volume of the motor, and reduces the utilization of the material. In addition, when the motor is running, the epoxy resin is injected into the groove. It will be affected by the heat generated by the copper loss and iron consumption of the stator. The temperature will rise, and it will expand and rupture due to heat, which will damage the enclosed environment. Replacing the traditional epoxy resin motor with a shielded motor can effectively improve the safety and reliability of the vacuum pump, thereby ensuring the high vacuum of the production line and improving the qualification rate of the photovoltaic product, which is of great help to improve the efficiency of the enterprise in 1948.