Hybrid compressor device

Abstract

In a hybrid compressor device having a pulley 110 , motor 120 , compressor 130 and control unit 160 , the respective rotary shafts 111, 121, 131 of the pulley 110 , motor 120 and compressor 130 can be independently rotated, and these rotary shafts are connected to a speed change mechanism 150 by which a drive force can be transmitted from one rotary shaft 111 to the other remaining rotary shafts 121, 131 while the rotating speed is being changed. The motor 120 is composed of an IPM motor 120 , in the rotor portion 120 a of which permanent magnets 122 are arranged, and the speed change mechanism 150 is accommodated on the inner circumferential side of the rotor portion 120 a . The control unit 160 adjusts a rotating speed of the motor 120 , and the rotating speed of the compressor 130 can be increased and decreased with respect to the rotating speed of the pulley 110.

1 . A hybrid compressor device comprising: 
 a pulley driven by an engine of a vehicle;    a motor driven by electric power sent from a power source, the rotating speed of the motor being controlled by a control unit; and    a compressor for compressing refrigerant in a refrigerating cycle device, wherein the compressor is operated by a drive force of the pulley and the motor, the respective rotary shafts of the pulley, motor and compressor can be independently rotated and connected to a speed change mechanism by which a rotation can be transmitted from one rotary shaft to the other remaining rotary shafts while the rotating speed is being changed, the motor is an IPM motor, in the rotor portion of which permanent magnets are arranged, the speed change mechanism is accommodated on the inner circumferential side of the rotor portion, and the control unit adjusts a rotating speed of the motor so that the rotating speed of the compressor can be increased and decreased with respect to the rotating speed of the pulley.    
   
   
       2 . A hybrid compressor device according to  claim 1 , wherein the speed change mechanism is a planetary gear, and each rotary shaft is correspondingly connected to either of the sun gear, planetary carrier and ring gear composing the planetary gear.  
   
   
       3 . A hybrid compressor device according to  claim 1 , wherein the compressor is a fixed displacement type compressor, the discharging capacity, per one revolution, of which is set to a predetermined value.  
   
   
       4 . A hybrid compressor device according to  claim 1 , wherein the vehicle is an idling stop vehicle, the engine of which is temporarily stopped when the vehicle stops moving, or the vehicle is a hybrid vehicle having a motor used for running, the engine of which is stopped according to a running condition.