Compressor and oxygen condensing device

Abstract

Provided is a compressor, and an oxygen concentrator, that achieve low noise by which the noise does not leak directly to the exterior upon generation of compressed air through suction of raw air, and that allow reducing power consumption of a driving motor. A compressor has a case section; a driving motor provided in the case section and having an output shaft; head sections operated by the rotation of the output shaft of the driving motor and that suck and compress raw air to generate thereby compressed air; a raw air intake section that is provided at the output shaft and that takes in the raw air into the head sections as a result of the rotation of the output shaft and that supplies the raw air towards the head sections; and a pressure regulation section that regulates the pressure within the case section upon suction of the raw air and upon discharge of the generated compressed air.

1 . A compressor that generates compressed air by compression of raw air, wherein
 the compressor has a case section and a driving motor that is provided in the case section and that has an output shaft,   the compressor further having:   a head section operated by rotation of the output shaft of the driving motor and that sucks and compresses the raw air to generate thereby the compressed air;   a raw air intake section that is provided at the output shaft and that takes the raw air into the head section, as a result of the rotation of the output shaft, and supplies the raw air to the head section; and   a pressure regulation section that regulates the pressure within the case section upon suction of the raw air and upon discharge of the generated compressed air.   
     
     
         2 . The compressor according to  claim 1 , wherein the pressure regulation section has a first pressure regulating valve that can open and close a first opening, and a second pressure regulating valve that can open and close a second opening, in order to regulate the pressure within the case section upon suction of the raw air and upon discharge of the generated compressed air. 
     
     
         3 . The compressor according to  claim 1 , wherein the raw air intake section of the output shaft has: a screw that guides the raw air in an axial direction of the output shaft, at an end section of the output shaft; and a tubular-type bearing member that takes the raw air into the case as a result of the rotation of the screw. 
     
     
         4 . The compressor according to  claim 2 , wherein the raw air intake section of the output shaft has: a screw that guides the raw air in an axial direction of the output shaft, at an end section of the output shaft; and a tubular-type bearing member that takes the raw air into the case as a result of the rotation of the screw. 
     
     
         5 . The compressor according to  claim 3 , wherein the driving motor is provided at a face section on a first side of the case section; and the raw air intake section of the output shaft is provided at a face section on a second side of the case section, the second side being on the opposite side to the first side. 
     
     
         6 . The compressor according to  claim 4 , wherein the driving motor is provided at a face section on a first side of the case section; and the raw air intake section of the output shaft is provided at a face section on a second side of the case section, the second side being on the opposite side to the first side. 
     
     
         7 . The compressor according to  claim 5 , wherein a hood member for covering the raw air intake section of the output shaft is provided at the case section. 
     
     
         8 . The compressor according to  claim 6 , wherein a hood member for covering the raw air intake section of the output shaft is provided at the case section. 
     
     
         9 . An oxygen concentrator comprising a compressor that generates compressed air by compression of raw air, and an adsorption member that holds an adsorbent that adsorbs nitrogen from the compressed air, wherein
 the compressor has a case section and a driving motor that is provided in the case section and that has an output shaft;   a head section operated by the rotation of the output shaft of the driving motor and that sucks and compresses the raw air to generate thereby the compressed air;   a raw air intake section that is provided at the output shaft and that takes the raw air to be supplied to the head section, as a result of the rotation of the output shaft; and   a pressure regulation section that regulates the pressure within the case section upon suction of the raw air and upon discharge of the generated compressed air.