Frequency converter for controlling a motor

Details Frequency converter for controlling a motor Frequency converter for controlling a motor

1990-02-22

1990-10-16

Stephan, Steven L.

Electrical generator or motor structure

Dynamoelectric

Rotary

310 63, 310 89, 310160, H02K 1100

Patent

active

049637789

ABSTRACT:
The present invention relates to an electromotor where its operational values, such as speed and torque, can be changed by means of a static frequency converter. The invention relates further to an electromotor combined with and driving a working unit such as a pump, a ventilator a machine tool or a tool. The frequency converter miniaturized by means of a high-integrated circuit is mechanically connected to form a structural unit with the motor or the working unit, and the dissipation heat of the frequency converter is emitted, preferably by means of ducted cooling, and the metal parts surrounding the frequency converter form the electric shielding thereof.

REFERENCES:
patent: 3299303 (1967-01-01), Newill et al.
patent: 4510404 (1985-04-01), Barrett et al.
patent: 4554473 (1985-11-01), Muller
patent: 4659951 (1987-04-01), Angi et al.
patent: 4668898 (1987-05-01), Harms et al.

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