Daikin Industries, Ltd.

Makio Takeuchi

Haruo Nakata

Hiromune Matsuoka

Shun Yoshioka

Kazuhide Mizutani

Akihiko Sakashita

Kazushige Kasai

A drain water bacteriostatic structure for an air conditioner is provided with a drain panfor holding drain water generated in an air conditionerand an upright antibacterial memberwhich is provided in the drain pan. The antibacterial memberis provided with an antibacterial agentB. The length Lof the antibacterial memberin the up-down direction is set such that the lower end portionof the antibacterial memberis immersed in drain water when the drain water is at the minimum water level Lin the drain pan, and the upper end portionof the antibacterial memberis exposed above the maximum water level Lof drain water in the drain panby a predetermined length H or more.

Drain water bacteriostatic structure for air conditioner

A refrigerant flow divider is made up of an inlet pipethrough which refrigerant Xin flows in, a main bodyof which the inside is a cavity, and a plurality of branching pipesthrough which refrigerant Xout flows out. When the length of the above described main bodyof the flow divider is L mm and the inner diameter of the above described main bodyof the flow divider is Dmm, the relationship 2&#x2266;L/D&#x2266;8 holds, and thus, a flow divider can be gained, where discrepancy (variation) in the flow rate ratio in the respective paths for the flow discharged from the outlet of the flow divider and entering the heat exchanger is small and pressure loss is small when there is a change of approximately &#xb1;10&#xb0; in the installation angle, a change in the dryness of the refrigerant at the inlet (0.2 to 0.4) or a change in the flow rate of the refrigerant (50% to 100%).

Refrigerant flow divider

Disclosed is a drain water discharge structure for an air conditioning apparatus in which at least any one of an internal drain pipe () and an external drain pipe () is formed from an antibacterial metal pipe, thereby to inhibit the generation of slime in the external drain pipe () and to make the external drain pipe () less apt to deterioration.

Drain water discharge structure for air conditioner

The present invention is an air conditioner that is built into or hung from a ceiling and which employs a cross fin type of heat exchanger, in which the effective length of the heat exchanger is increased without increasing the size of the casing of the indoor unit. An indoor unit has a casing that supports the components of the indoor unit and in which an air suction port and air discharge ports are formed, a centrifugal fan disposed inside the casing for taking in air from the air suction port and discharging air out to the sides thereof, and a cross fin type of heat exchanger for exchanging heat with the air discharged from the centrifugal fan and disposed so that it surrounds the centrifugal fan. The heat exchanger has a plurality of concave portions that are formed such that they are near the outer circumferential portion of the centrifugal fan, and a plurality of convex portions that are formed such that the extend away from the outer circumferential portion of the centrifugal fan.

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Sakai, Japan

Makio Takeuchi