# US 8,464,548 B2 · Air conditioner

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- Number: US 8,464,548 B2
- Document ID: US8464548B2
- Status: Granted
- Kind: B2
- Application number: 12/997,156
- Filed: 2009-06-04
- Published: 2011-04-07
- Granted: 2013-06-18
- Earliest claimed: 2008-06-12
- Assignees: Daikin Industries, Ltd.
- Applicants: Noriyuki Okuda; Norihiro Takenaka; Tomohiro Masui
- Inventors: Noriyuki Okuda; Norihiro Takenaka; Tomohiro Masui
- Web page: https://patentgrep.com/patent/US8464548B2

## CPC

- F24F 1/22: Arrangement or mounting thereof
- F24F 1/24: Cooling of electric components
- F24F 13/20: Casings or covers
- F24F 2013/207: {with control knobs; Mounting controlling members or control units therein}
- F24F: AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING (removing dirt or fumes from areas where they are produced B08B15/00; vertical ducts for carrying away waste gases from buildings E04F17/02; tops for chimneys or ventilating shafts, terminals for flues F23L17/02)

## Abstract

A printed-circuit board (31) having a power element (33) and a refrigerant jacket (20) to which the power element (33) is thermally connected, with refrigerant circulating therein used in refrigeration cycle, are provided in an outdoor unit casing (70). The printed-circuit board (31) is provided in a switch box (40). A face of the outdoor unit casing (70) has a service opening (71). The refrigerant jacket (20) faces the service opening (71), being closer to the front side of the outdoor unit casing (70) than the power element (33) as viewed from the service opening (71).

## Claims

### Claim 1

An air conditioner comprising:
a printed-circuit board (31) having a power element (33); and
a refrigerant jacket (20) to which the power element (33) is thermally connected, with refrigerant circulating in the refrigerant jacket (20), the refrigerant used in refrigeration cycle, wherein
the printed-circuit board (31) and the refrigerant jacket (20) are provided in a casing (70) of an outdoor unit (100),
the refrigerant circulating in the refrigerant jacket (20) cools the power element (33),
the casing (70) has a face having a service opening (71), and
the refrigerant jacket (20) faces the service opening (71), being closer to a front side of the casing (70) than the power element (33) as viewed from the service opening (71).

### Claim 2 (depends on 1)

The air conditioner of claim 1, wherein the casing (70) has an assembly opening (72) in a face next to the face having the service opening (71) through which the printed-circuit board (31) is inserted.

### Claim 3 (depends on 1)

The air conditioner of claim 1, wherein the printed-circuit board (31) is placed in a longitudinal position so that the power element (33) is in an upper part of the printed-circuit board (31) when the casing (70) is installed.