| abstract |
The invention discloses a frequency converter, a water pump and a constant-pressure water supply system. The frequency converter comprises a drive plate, a control plate, an upper shell and a lower shell, wherein the upper shell and the lower shell are hermetically connected to form a shell of the frequency converter, the drive plate and the control plate are arranged in the upper shell, and the frequency converter is provided with a communication port to support networking of a plurality of machines. The invention also discloses a water pump, which comprises a frequency converter and a motor, wherein the frequency converter is directly and fixedly arranged on the outer side of the motor through a bottom plate, and the intelligent control among a plurality of water pumps is realized through the frequency converter on line to form a constant-pressure water supply system. |