To provide an outdoor heat exchanger for a heat pump type refrigeration cycle which can retard the lowering of heat exchange efficiency at heating.SOLUTION: An outdoor heat exchanger 4 comprises a plurality of flat refrigerant circulation pipes 39, and a first fin 42 and a second fin 43 which are arranged in one ventilation clearance 41 formed between the adjacent refrigerant circulation pipes 39. The first fin 42 and the second fin 43 are composed of wave top parts, wave bottom parts and connecting parts 42c, 43c for connecting the wave top parts and the wave bottom parts, and formed into corrugated shapes in which a plurality of louvers 45, 46 are arranged at the connecting parts 42c, 43c. The first fin 42 and the second fin 43 are arranged with an interval 40 in a ventilation direction so that the first fin 42 is located at a windward side, and the second fin 43 is located at a leeward side. A fan pitch of the first fin 42 at the windward side is wider than a fin pitch of the second fin 43 at the leeward side.SELECTED DRAWING: Figure 4
【課題】暖房時に、熱交換効率の低下を遅延させうるヒートポンプ式冷凍サイクル用室外熱交換器を提供する。【解決手段】室外熱交換器4は、複数の扁平状冷媒流通管39と、隣り合う冷媒流通管39どうしの間に形成された1つの通風間隙41に配置された第1フィン42および第2フィン43とを備えている。第1フィン42および第2フィン43は、波頂部、波底部、および波頂部と波底部とを連結する連結部42c,43cよりなるとともに、連結部42c,43cに複数のルーバ45,46が設けられたコルゲート状である。第1フィン42および第2フィン43は、第1フィン42が風上側に位置するとともに第2フィン43が風下側に位置するように通風方向に間隔40をおいて配置されている。風上側の第1フィン42のフィンピッチが、風下側の第2フィン43のフィンピッチよりも広くなっている。【選択図】図4
OUTDOOR HEAT EXCHANGER FOR HEAT PUMP TYPE REFRIGERATION CYCLE
ヒートポンプ式冷凍サイクル用室外熱交換器
2021-03-01
Patent
Electronic Resource
Japanese
IPC: | F28F Einzelheiten von Wärmetauschern oder Wärmeübertragungsvorrichtungen für allgemeine Verwendung , DETAILS OF HEAT-EXCHANGE OR HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / F28D Wärmetauscher, soweit in keiner anderen Unterklasse vorgesehen, in denen die Wärmetauschmittel nicht in direkte Berührung miteinander kommen , HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT |
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