Title:
切替ユニット
Document Type and Number:
Japanese Patent JP7276055
Kind Code:
B2
Abstract:
To provide a switching unit reduced in dimension while easily attaching butyl rubber.SOLUTION: A first solenoid valve is connected to first refrigerant piping 101 and second refrigerant piping 102, and opened in executing a heating operation. A second solenoid valve and a third solenoid valve are opened and closed in connecting and disconnecting a high pressure side and a low pressure side of the first refrigerant piping 101 to the third refrigerant piping 103. A fourth solenoid valve is connected to the third refrigerant piping 103, and opened in executing a cooling operation. A capillary tube 122 is disposed near the first refrigerant piping 101, and reduces pressure difference between both ends of the first solenoid valve. A capillary tube 123 is disposed near the third refrigerant piping 103, and reduces pressure difference between both ends of the fourth solenoid valve 104. A first noise reduction member is attached to the capillary tube 122 after connection of the capillary tube 122. A second noise reduction member is attached to the capillary tube 123 after connection of the capillary tube 123.SELECTED DRAWING: Figure 14
Inventors:
Yu Kimura
Application Number:
JP2019180245A
Publication Date:
May 18, 2023
Filing Date:
September 30, 2019
Export Citation:
Assignee:
Fujitsu General Limited
International Classes:
F24F1/32; F25B41/40
Domestic Patent References:
| JP2010059A | ||||
| JP2004257596A | ||||
| JP2013174424A | ||||
| JP2015114049A |
Attorney, Agent or Firm:
Sakai International Patent Office