OUTDOOR UNIT FOR AIR CONDITIONING DEVICE
| Registre | Brevet WIPO |
|---|---|
| Numéro d'application | JP2020023375 |
| Numéro de publication | 2021/255780 |
| Statut | Délivré - en vigueur |
| Date de dépôt | 2020-06-15 |
| Date de publication | 2021-12-23 |
| Propriétaire | HITACHI-JOHNSON CONTROLS AIR CONDITIONING, INC. (Japon) |
| Inventeur(s) |
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Abrégé
Provided is an outdoor unit for an air conditioning device, with which: pressure loss during use with an evaporator can be reduced; and high heating capability and improvements in cooling performance can be realized at low cost even under the influence of a liquid head caused by the wind speed distribution of a heat exchanger and the height of the heat exchanger. The heat exchanger has a height of at least 1 meter and is constituted by three columns of heat exchange units that are arranged along the direction in which air flows. A first column heat exchange unit, which is on the upwind side among the heat exchange units, is disposed such that a U-shaped heat transfer pipe overlaps in a stage direction. Two columns on the downwind side are disposed such that the U-shaped heat transfer pipe straddles a second column heat exchange unit and a third column heat exchange unit. The third column heat exchange unit of an upper-side heat exchanger is connected to a gas header. The number of cooling paths connected to the gas header is greater than half the total number of stages of the heat exchanger, and is the same number of stages as the number of cooling paths connected to the gas header. The first column heat exchange unit of a lower-side heat exchanger is connected to a liquid coolant distributor. The U-shaped heat transfer pipe of the third column heat exchange unit of the lower-side heat exchanger and the U-shaped heat transfer pipe of the first column heat exchange unit of the upper-side heat exchanger are connected via a path connection pipe.