# US 2014/0190196 A1 · Air conditioner

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- Number: US 2014/0190196 A1
- Document ID: US20140190196A1
- Status: Published application
- Kind: A1
- Application number: 14/203,211
- Filed: 2014-03-10
- Published: 2014-07-10
- Earliest claimed: 2008-07-24
- Assignees: Daikin Industries, Ltd.
- Applicants: Daikin Industries, Ltd.
- Inventors: Noriyuki OKUDA; Norihiro TAKENAKA; Tomohiro MASUI
- Web page: https://patentgrep.com/patent/US20140190196A1

## CPC

- H05K 7/2029: {using a liquid coolant with phase change in electronic enclosures (in cabinets of standardized dimensions H05K7/20536; in server cabinets H05K7/20709; in vehicle electronic casings H05K7/20845; in power control electronics H05K7/2089; in displays H05K7/20954)}
- F24F 1/24: Cooling of electric components
- F25B 31/006: {Cooling of compressor or motor}
- H10W 40/611: {Bolts or screws}
- H10W 40/73: for cooling by change of state
- F24F 2013/207: {with control knobs; Mounting controlling members or control units therein}
- F25B 2400/077: Compressor control units, e.g. terminal boxes, mounted on the compressor casing wall containing for example starter, protection switches or connector contacts
- H05K: PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- 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)
- F25B: REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- H10W: GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10

## Abstract

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

## Claims

### Claim 1

An air conditioner including
a printed circuit board to which a power device is attached,
a switch box in which the printed circuit board is housed, and
a refrigerant circuit configured to perform a refrigeration cycle,
the air conditioner comprising:
a cooling unit configured to cool the power device using refrigerant circulating through the refrigerant circuit,
wherein a through-hole is formed at one surface of the switch box such that a peripheral edge part of the one surface of the switch box remains, and
the cooling unit is fixed to the peripheral edge part from outside the switch box, and is connected to the power device through the through-hole.

### Claim 2 (depends on 1)

The air conditioner of claim 1, wherein
the cooling unit is fixed to the peripheral edge part with a screw.

### Claim 3 (depends on 1)

The air conditioner of claim 1, wherein
the power device is fixed to the cooling unit with a screw at the through-hole.

### Claim 4 (depends on 2)

The air conditioner of claim 2, wherein
the power device is fixed to the cooling unit with a screw at the through-hole.

### Claim 5 (depends on 1)

The air conditioner of claim 1, wherein
the printed circuit board is fixed to the peripheral edge part.

### Claim 6 (depends on 2)

The air conditioner of claim 2, wherein
the printed circuit board is fixed to the peripheral edge part.

### Claim 7 (depends on 3)

The air conditioner of claim 3, wherein
the printed circuit board is fixed to the peripheral edge part.

### Claim 8 (depends on 4)

The air conditioner of claim 4, wherein
the printed circuit board is fixed to the peripheral edge part.