| 摘要 |
PURPOSE: A vacuum pump structure of an indoor oxygen-concentrated air supply apparatus for an automobile is provided to produce oxygen-concentrated air without using an extra vacuum pump. CONSTITUTION: An HVAC(Heating, Ventilating, and Air conditioning) unit is installed inside an automobile for supplying the air into an indoor of the automobile. A control unit includes an oxygen density display part, a mode selecting knob, an indoor air/outdoor air selecting knob, an automatic selecting knob, an airflow control knob, and a concentrated oxygen supply main switch. An oxygen enrichment film unit is formed of a vacuum pump(31) driven by the concentrated oxygen supply main switch, an oxygen enrichment film(32) increasing the density of oxygen in the air sucked in by the vacuum pump, and an oxygen supply pipe(33) supplying the air passed through the oxygen enrichment film to the HVAC unit. An oxygen density sensor is connected with the oxygen density display part for sensing the density of oxygen in the indoor of the automobile. The vacuum pump is integrated with an alternator(70) rotated by being connected to a motor shaft of an engine(60). An intake port(31a) of the vacuum pump is connected to the oxygen enrichment film unit and a discharge port(31b) is connected to the oxygen supply pipe.
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