Vacuuming device and vacuum apparatus

A vacuuming device, comprising:

• a main body, a rotary shaft, a vacuum pump rotor, a motor stator and a motor rotor, wherein the main body is provided with an air inlet, an air outlet, an oil storage chamber and a motor chamber;
• said oil storage chamber communicates with said air outlet, and said rotary shaft is rotationally located in said main body;
• said vacuum pump rotor is fixedly mounted to said rotary shaft and cooperatively forms a stator cavity of a vacuum pump with an inner wall of said main body;
• wherein said air inlet and said oil storage chamber communicate with said stator cavity of the vacuum pump respectively;
• both said motor stator and said motor rotor are arranged in said motor chamber, and said motor stator is fixedly connected to said main body, and said motor rotor is fixedly connected to said rotary shaft;
• wherein said main body is provided with an oil and air outlet passage, and one end of said oil and air outlet passage is corresponding to said vacuum pump rotor, the other end of the oil and air outlet passage is communicating with said motor chamber;
• wherein several annular silicon steel sheets are arranged inside said motor rotor, and the other end of said oil and air outlet passage communicating with said motor chamber communicates with a second annular oil passage;
• wherein said second annular oil passage is bounded by an inner wall of said main body in the motor chamber, said several annular silicon steel sheets and said motor stator;
• wherein said main body comprises a main structure, and said oil and air outlet passage is located inside said main structure;
• an internal of said main structure is provided with a shaft mounting hole, and said shaft mounting hole is configured to install said rotary shaft, and said oil and air outlet passage is arranged above said shaft mounting hole;
• and
• wherein said main body further comprises a first end cap connected with said main structure, and said first end cap and said main structure cooperatively forms a vacuum cartridge;
• wherein said main body further comprises a second end cap attached to the first end cap;
• and said second end cap and said main structure cooperatively forms a communicating chamber;
• said vacuum cartridge is configured to mount said vacuum pump rotor, and said vacuum cartridge is communicating with the one end of said oil and air outlet passage, and said oil storage chamber and said communicating chamber are communicating with each other;
• said air inlet is arranged on said first end cap;
• wherein said air inlet is communicated with said vacuum cartridge, and said air outlet is communicated with said communicating chamber.