VALVE DRIVE DEVICE, AND, REFRIGERANT CYCLE DEVICE COMPRISING SAME

Registre Brevet WIPO
Numéro d'application JP2018038923
Numéro de publication 2020/079822
Statut Délivré - en vigueur
Date de dépôt 2018-10-19
Date de publication 2020-04-23
Propriétaire HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon)
Inventeur(s)
  • Ueta Kazuhiro
  • Kanbara Eiji

Abrégé

Provided are a low-cost and highly reliable valve drive device, etc. A four-way valve drive device (G) comprises a four-way valve drive circuit (3) and a control circuit (4). The four-way valve drive circuit (3) has a four-way valve coil (36), and also has MOSFET (34, 35) which are provided to a prescribed electric current path via the four-way valve coil (36). The control circuit (4), on the basis of a pulse width modulation control, controls turning the MOSFET (34, 35) on and off, and energizes the four-way valve coil (36).

Classes IPC  ?

  • F16K 31/06 - Operating means; Releasing devices magnetic using a magnet