AIR CONDITIONER

• Main Authors: FUSHIMI NAOYUKI, IWASE TAKU, SETSU SHUN, SATO YAMATO
• Format: Patent
• Language: English; Japanese
• Published: 01.12.2016
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; NON-POSITIVE DISPLACEMENT PUMPS; POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To provide an air conditioner of high efficiency capable of sufficiently exerting heat exchange performance at a refrigerant side of a fin/tube heat exchanger having a structure of unequal row heat exchanger while considering uniform wind speed distribution and increase of a heat transfer area.SOLUTION: An indoor heat exchanger 22a includes a plurality of heat transfer tubes 221 in which a refrigerant flows, and a plurality of fins 222a having a constitution that the stacked heat transfer tubes are penetrated therethrough, and is constituted to exchange heat between the air sent to the plurality of fins by a blower fan and a refrigerant. The heat transfer tubes configure a plurality of rows from an upstream side toward a downstream side of the airflow, the airflow has a speed distribution at the upstream side, the number of rows of the heat transfer tubes is more at a part of high air speed, and the heat transfer tube at the most upstream side of the airflow among the heat transfer tubes of the part, is connected to the heat transfer tube of the downstream side of the airflow of the part, and the heat transfer tube of the row at the most upstream side of the airflow among the heat transfer tubes of a region excluding the part is connected to the heat transfer tube at the downstream side of the region.SELECTED DRAWING: Figure 7 【課題】風速分布の均一化と伝熱面積の増加を考慮した、不等列熱交換器の構造を有するフィンチューブ熱交換器の冷媒側の熱交換性能を十分に引き出せる、高効率の空気調和機を提供する。【解決手段】室内熱交換器２２ａは、冷媒が流れる複数の伝熱管２２１と、積層され伝熱管が貫通した構成を有する複数のフィン２２２ａと、を含み、送風ファンにより複数のフィンの間に送られた空気と冷媒とが熱交換をする構成であり、伝熱管は、空気の流れの上流側から下流側に向かって複数の列を構成し、空気の流れは、上流側で速度分布を有し、伝熱管の列数は、空気の速度が速い部分で多くし、この部分の伝熱管のうち空気の流れの最も上流側の列にある伝熱管は、その部分の空気の流れの下流側の伝熱管に接続され、当該部分以外の領域の伝熱管のうち空気の流れの最も上流側の列にある伝熱管は、その領域の下流側の伝熱管に接続する。【選択図】図７