Portable electronic air compressor

Abstract

A portable electronic air compressor includes a housing, and a main body mounted in the housing. The main body includes an air storage device, an actuating device, a reduction device, a motor, a control circuit, and a direct current air supply. Thus, the air compressor is portable, thereby facilitating the user carrying the air compressor. In addition, the volume of the main body of the air compressor is greatly reduced by provision of the direct current air supply, the miniature motor, the reduction device and the control circuit, so that the air compressor occupies a smaller space.

1 . An air compressor, comprising a main body including: 
 an air storage device;    an actuating device connected to the air storage device to produce a compressed air and to push the compressed air into the air storage device;    a reduction device connected to the actuating device to produce a predetermined torque to operate the actuating device;    a motor connected to the reduction device to operate the reduction device;    a control circuit connected to the motor and the air storage device to detect a pressure contained in the air storage device and to control operation of the motor according to the detected pressure of the air storage device; and    a direct current air supply connected to the control circuit to supply an electric power to the control circuit.    
   
   
       2 . The air compressor in accordance with  claim 1 , further comprising a housing, wherein the main body is mounted in the housing.  
   
   
       3 . The air compressor in accordance with  claim 2 , wherein the housing includes a base for supporting the main body.  
   
   
       4 . The air compressor in accordance with  claim 3 , wherein the housing further includes a cover pivotally mounted on the base to encompass the main body.  
   
   
       5 . The air compressor in accordance with  claim 3 , further comprising a handle mounted on the base of the housing.  
   
   
       6 . The air compressor in accordance with  claim 1 , wherein the air compressor is portable.  
   
   
       7 . The air compressor in accordance with  claim 1 , wherein the motor is a miniature motor.  
   
   
       8 . The air compressor in accordance with  claim 1 , wherein the control circuit is an electronic control circuit.  
   
   
       9 . The air compressor in accordance with  claim 1 , wherein the reduction device is mounted on the motor and includes a drive gear mounted on and rotated by a rotation shaft of the motor and a driven gear meshing with the drive gear.  
   
   
       10 . The air compressor in accordance with  claim 9 , wherein the driven gear of the reduction device has a tooth number greater than that of the drive gear of the reduction device.  
   
   
       11 . The air compressor in accordance with  claim 9 , wherein the actuating device is mounted on the reduction device and includes a crank shaft mounted on and driven by the driven gear of the reduction device and a piston mounted on and driven by the crank shaft.  
   
   
       12 . The air compressor in accordance with  claim 11 , wherein the air storage device is connected to the piston.  
   
   
       13 . The air compressor in accordance with  claim 11 , wherein the main body further includes a pressure regulating device mounted between an air inlet pipe of the main body and the piston to regulate the pressure contained in the air storage device.  
   
   
       14 . The air compressor in accordance with  claim 1 , wherein the control circuit includes a first pressure detection unit to detect the pressure contained in the air storage device.  
   
   
       15 . The air compressor in accordance with  claim 14 , wherein the control circuit further includes a second pressure detection unit to doubly detect the pressure contained in the air storage device.  
   
   
       16 . The air compressor in accordance with  claim 1 , wherein the control circuit locks the air compressor automatically when the pressure contained in the air storage device is greater than a predetermined value, so that the air compressor stops operating.  
   
   
       17 . The air compressor in accordance with  claim 1 , wherein the control circuit further includes a voltage detection unit to detect the electric power of the direct current air supply.  
   
   
       18 . The air compressor in accordance with  claim 1 , wherein the air storage device is connected to an air outlet pipe to introduce the compressed air outward.