Operation keyboard knob of frequency converter

The utility model discloses an operation keyboard knob of a frequency converter, which comprises an operation keyboard, an operation knob and a circuit board, and a knob shell is arranged on the uppersurface of the operation keyboard. Disclosed is an operation keyboard knob of a frequency converter....

Ausführliche Beschreibung

Bibliographische Detailangaben

Hauptverfasser:	LIAO XIANGHENG, HU YONG, LI DIPENG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	BASIC ELECTRIC ELEMENTS ELECTRIC SWITCHES ELECTRICITY EMERGENCY PROTECTIVE DEVICES RELAYS SELECTORS
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