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Title:
ELECTROMAGNETIC EXPANSION DEVICE AND REFRIGERATING APPARATUS
Document Type and Number:
Japanese Patent JP2012087919
Kind Code:
A
Abstract:

To provide an electromagnetic expansion device and a refrigerating apparatus, capable of improving operation stability.

An air conditioning apparatus 1, having an outdoor electromagnetic expansion valve 24 for adjusting the passage amount of refrigerant, includes a plunger 53, a head 51, a valve seat 63, a solenoid coil 52 and an outdoor control part 72. A current flowing through the solenoid coil 52 is adjusted, and thereby, the degree of opening of the outdoor electromagnetic expansion valve 24 can be adjusted. The outdoor control part 72 performs a control so as to adjust the current to be supplied to the solenoid coil 52. Further, the outdoor control part 72 gradually reduces the power supply amount to the solenoid coil 52 when performing the control for closing the outdoor electromagnetic expansion valve 24.


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Inventors:
MIYAJIMA HIROYUKI
Application Number:
JP2010000237618
Publication Date:
May 10, 2012
Filing Date:
October 22, 2010
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
F16K31/06; F25B41/06; H01F7/16
Attorney, Agent or Firm:
Shinki Global IP Patent Corporation