Cooling device for frequency converter of granulator

The utility model belongs to the field of electric appliances, and discloses a cooling device for a frequency converter of a granulator. Comprising a main switch (1), a contactor main contact (2), a fan protector (3), a fan (4), a start button (5), a stop button (6), a loop protector (7), an interme...

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Bibliographische Detailangaben
Hauptverfasser:	LI LIANJIE, DU ZHANPING, LYU TAO, GAO FUSHAN, LIU MING
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	APPARATUS FOR CONVERSION BETWEEN AC AND AC, BETWEEN AC AND DC,OR BETWEEN DC AND DC, AND FOR USE WITH MAINS OR SIMILAR POWERSUPPLY SYSTEMS BLASTING CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS CONTROL OR REGULATION THEREOF CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS CONVERSION OF DC OR AC INPUT POWER INTO SURGE OUTPUTPOWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR ELECTRICITY GENERATION HEATING LIGHTING MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT PUMPS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PRINTED CIRCUITS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS WEAPONS
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Beschreibung
Zusammenfassung:	The utility model belongs to the field of electric appliances, and discloses a cooling device for a frequency converter of a granulator. Comprising a main switch (1), a contactor main contact (2), a fan protector (3), a fan (4), a start button (5), a stop button (6), a loop protector (7), an intermediate relay coil (8), a first auxiliary contact (9), a contactor coil (11), an operation indicating lamp (12), a second auxiliary contact (13), a stop indicating lamp (14), a fuse (15), a third auxiliary contact (16) and a frequency converter detection loop (17). According to the utility model, the external fan is used to replace an original fan for heat radiation, thereby not only preventing element damage caused by overhigh temperature of elements in the frequency converter, but also timely replacing the fan when the frequency converter fan breaks down, reducing the production halt time of process production, and greatly reducing the production halt loss caused by the frequency converter fault. 本实用新型属于电器领域，公开了一种切