ELECTRONIC EXPANSION VALVE, CONTROL SYSTEM, AND CONTROL METHOD

ELECTRONIC EXPANSION VALVE, CONTROL SYSTEM, AND CONTROL METHOD

Provided are an electronic expansion valve (100), a control system, and a control method, comprising: a step motor (10) and a Hall sensor (3); the step motor comprises a rotor (1) and a stator (2); the rotor comprises a permanent magnet; the Hall sensor is provided on the outer periphery of the perm...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: ZHANG, Bin, LAN, Yaofeng, JIANG, Junxiao
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ACTUATING-FLOATS
BLASTING
COCKS
COMBINED HEATING AND REFRIGERATION SYSTEMS
CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS
CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS
CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
DEVICES FOR VENTING OR AERATING
DYNAMO-ELECTRIC MACHINES
ELECTRICITY
ENGINEERING ELEMENTS AND UNITS
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
GENERATION
HEAT PUMP SYSTEMS
HEATING
LIGHTING
LIQUEFACTION SOLIDIFICATION OF GASES
MANUFACTURE OR STORAGE OF ICE
MECHANICAL ENGINEERING
REFRIGERATION MACHINES, PLANTS OR SYSTEMS
REFRIGERATION OR COOLING
TAPS
THERMAL INSULATION IN GENERAL
VALVES
WEAPONS
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Beschreibung
Zusammenfassung:Provided are an electronic expansion valve (100), a control system, and a control method, comprising: a step motor (10) and a Hall sensor (3); the step motor comprises a rotor (1) and a stator (2); the rotor comprises a permanent magnet; the Hall sensor is provided on the outer periphery of the permanent magnet; the Hall sensor and rotor are arranged in the radial direction, and the stator and Hall sensor are arranged in the axial direction; the main-body part (31) of the Hall sensor is used for sensing the magnetic pole change of said permanent magnet; such a structure reduces the effect that an operating environment has on the Hall sensor when detecting a signal.