PROBLEM TO BE SOLVED: To provide an oxygen concentrator, wherein assembly work, inspection and servicing efficiencies can be improved for a small-sized oxygen concentrator with reduced noises.SOLUTION: The oxygen concentrator has a casing or air-tight container 2, 3 for introducing air to the inside through a suction port and discharging air to the outside through an exhaust port, a compressor 105, an adsorption tube for separating and generating oxygen, a switch means 109 to switch flow passage routes for changing the state between the one of introducing compressed air into the adsorption tube and the one of introducing negative pressure into the adsorption tube to discharge the compressed air from there, a fan 104 for blowing air to the compressor for its cooling down, and a two-step type soundproof room 35 installed within the casing or air-tight container 2, 3 and provided with the upper component and the lower component that can be taken in and out of the soundproof room 35 through its side. A fan is installed at the upper component 36 while the compressor in a vibration-proof state is installed at the lower component 37.COPYRIGHT: (C)2008,JPO&INPIT【課題】 低騒音化された小型の酸素濃縮装置の組立作業性および点検整備性の向上を図ることのできる酸素濃縮装置の提供。【解決手段】大気を吸気口を介して内部に導入し、排気口を介して外部に排出する酸素濃縮装置筺体2,3と密閉容器2、3と、コンプレッサ105と、酸素を分離生成する吸着筒体と、吸着筒体内に圧縮空気を導入する状態と、吸着筒体の外部に排出させるように吸着筒体内に前記負圧を導入する状態とに流路を切り換える切換手段109と、コンプレッサに向けて送風して冷却を行う送風ファン104と、その側方から出し入れ可能な上段部材と下段部材とを備えるとともに酸素濃縮装置筺体2,3内に密閉容器内に設けられる二段式防音室35とを備え、送風ファンを上段部材36に配設し、下段部材37にコンプレッサを防振状態で配設する。【選択図】 図15
