Air conditioner

Patent metadata

Field	Value
Publication number	US-8978404-B2
Application number	US-200913055244-A
Country	US
Kind code	B2
Filing date	Jul 15, 2009
Priority date	Jul 24, 2008
Publication date	Mar 17, 2015
Grant date	Mar 17, 2015

Abstract

An air conditioner includes a printed circuit board ( 31 ) to which a power device ( 33 ) is attached; and a refrigerant jacket ( 20 ) which is connected to the power device ( 33 ), and through which refrigerant used for a refrigeration cycle flows. The printed circuit board ( 31 ) is accommodated in a switch box ( 40 ). The refrigerant jacket ( 20 ) is fixed to the switch box ( 40 ) through a heat transfer plate ( 50 ), and the refrigerant jacket ( 20 ) and the printed circuit board ( 31 ) are connected together by the switch box ( 40 ).

First claim

The invention claimed is:

1. An air conditioner, comprising:
a printed circuit board to which a power device including a lead wire is attached; and
a refrigerant jacket which is connected to the power device, the refrigerant jacket covering a portion of a refrigerant pipe through which refrigerant used for a refrigeration cycle flows,
wherein the refrigerant jacket is thermally connected to the covered portion of the refrigerant pipe such that heat transferred from the power device to the refrigerant jacket dissipates to the refrigerant flowing through the refrigerant pipe to cool the power device,
the printed circuit board and the refrigerant jacket are connected together by a common support member,
the power device is attached to the refrigerant jacket through a heat transfer plate, and
each of the heat transfer plate and the printed circuit board is separately attached to a plate-shaped part of the common support member.

2. The air conditioner of claim 1 , wherein
the support member is a switch box in which the printed circuit board is accommodated.

3. The air conditioner of claim 1 , wherein
the heat transfer plate is attached to one side surface of the plate-shaped part of the support member and the printed circuit board is attached to another side surface of the plate-shaped part of the support member, said side surfaces face in opposite directions.

4. The air conditioner of claim 2 , wherein the switch box is formed in flat box shape with an opening at one end, and the plate-shaped part is formed at another end facing the opening.

Assignees

• Okuda Noriyuki
• Takenaka Norihiro
• Masui Tomohiro
• Daikin Ind Ltd

Inventors

• Okuda Noriyuki
• Takenaka Norihiro
• Masui Tomohiro

Classifications

• H10W40/611

  Bolts or screws · CPC title

• H10W40/73

  for cooling by change of state · CPC title

• F24F1/24 Primary

  Cooling of electric components · CPC title

• F24F2013/207

  with control knobs; Mounting controlling members or control units therein · CPC title

• F25B31/006

  Cooling of compressor or motor · CPC title