Among DC vacuum motors manufacturers, the production of vacuum motors will increasingly involve vacuum environments; ordinary motors cannot work normally in vacuum, vacuum high and low temperature, and vacuum radiation environments. The specific reasons are roughly as follows:

1) There is no convection with air in a vacuum environment, and there is no good heat conduction mechanism.

2) When there is vacuum high and low temperature -200℃～+200℃, high and low temperature deformation analysis is required

3) Vacuum radiation will decompose the parts of the motor, and short circuit will cause stuck

Ordinary motors emit tiny particles and molecular sediments, and organic substances such as grease, adhesives, and insulating materials are in a gaseous state, and there is a risk of contaminating vacuum tanks or other precision instruments when using ordinary motors in a vacuum environment. Because it cannot be directly used in the vacuum tank, ordinary motors are usually installed outside the vacuum tank. Although this method can save internal space, it will also be greatly restricted. Even if it can be realized, the cost of this method will be high. The interior space of the tank will be occupied by a large number of complex, additional mechanical parts.

The benefits of using motors in a vacuum environment are also obvious:

1. The electrical insulation level is greatly improved, the motor has no oxidation, and the service life is greatly extended.

2. China vacuum cleaner motors manufacturers have no air resistance, more stable startup, relatively lower no-load and load currents, higher efficiency than ordinary environments, and greatly reduced noise. Therefore, in the design of the vacuum cleaner motor, the motor inside the vacuum cleaner rotates at high speed, which drives the impeller composed of blades around the motor to rotate at high speed, thereby generating a vacuum inside and forming a pressure difference with the outside. air, thus forming a relatively vacuum environment. When we choose the steam cleaner motor, we should pay attention to the vacuum degree, as well as the reference factors such as the speed of the motor and the suction force of the suction port. Usually the units of suction are kpa-static suction and AW-dynamic suction. The larger the number, the stronger the suction and the less effort it takes to use.