AIR CONDITIONER

• Main Authors: IKEDA MOTONOBU, ISHII HIDEHIRO, FUJIWARA MASAHIDE, ISHIZEKI SHINICHI
• Format: Patent
• Language: English; Japanese
• Published: 12.01.2017
• Subjects: AIR-CONDITIONING, AIR-HUMIDIFICATION, VENTILATION, USE OF AIRCURRENTS FOR SCREENING; BLASTING; CONTROL OR REGULATION OF ELECTRIC MOTORS, ELECTRIC GENERATORSOR DYNAMO-ELECTRIC CONVERTERS; CONTROLLING TRANSFORMERS, REACTORS OR CHOKE COILS; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER; ELECTRICITY; GENERATION; HEATING; LIGHTING; MECHANICAL ENGINEERING; RANGES; VENTILATING; WEAPONS

PROBLEM TO BE SOLVED: To protect a capacitor from regenerative power, and to effectively utilize the regenerative power in such a manner that a problem about refrigerant control does not occur.SOLUTION: An air conditioner includes: fans 15, 16 of an outdoor unit 100 and fan drive circuits 13, 14 for driving these; a compressor 10 and a compressor drive circuit 9 for driving the same; common two power supply lines 4 for supplying a DC voltage to the fan drive circuits 13, 14 and the compressor drive circuit 9; a capacitor 5 provided between the two power supply lines 4; voltage detection parts 6, 7 for detecting an inter-line voltage between the two power supply lines 4; and a control part 8 for, in a state where the operation of the compressor 10 is stopped, when a regenerative voltage detected by the voltage detection parts 6, 7 exceeds a predetermined value, consuming the regenerative power by a heat generating operation which does not involve refrigerant movement.SELECTED DRAWING: Figure 1 【課題】回生電圧からコンデンサを保護し、かつ、冷媒制御の問題を生じない形で回生電力を有効利用する。【解決手段】この空気調和機は、室外機１００のファン１５，１６及びこれを駆動するファン駆動回路１３，１４と、圧縮機１０及びこれを駆動する圧縮機駆動回路９と、ファン駆動回路１３，１４及び圧縮機駆動回路９に直流電圧を供給する共通の２本の電源供給線路４と、２本の電源供給線路４の線間に設けられたコンデンサ５と、２本の電源供給線路４の線間電圧を検出する電圧検出部６，７と、圧縮機１０が運転停止している状態において、電圧検出部６，７が検出する回生電圧が所定値を超えたとき、冷媒移動を伴わない発熱運転により、回生電力を消費させる制御部８と、を備えている。【選択図】図１