公开(公告)号：DE69626073D1

公开(公告)日：2003-03-13

申请号：DE69626073

申请日：1996-03-14

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAMAOKA KOUJI OSAKA ,  OGAWA KEIJI ,  SHIBUYA KOYO ,  SATOMURA TAKASHI ,  OGAHARA HIDEHARU ,  TSUJII YASUHIRO ,  KURIMOTO KAZUNORI

IPC: F25B1/00 ,  F25B1/04 ,  F25B31/00 ,  F25B49/02 ,  H02P1/46 ,  H02P6/06 ,  H02P6/08 ,  H02P6/18 ,  H02P6/182 ,  H02P6/21 ,  H02P6/20

Abstract: When a lock detector detects a locked state of a DC motor in a starting stage, a torque increasing circuit immediately selects a starting sequence pattern of an output torque that is greater in magnitude by one preselected step, and outputs the selected output torque to a starting sequence controller, so that a compressor can be restarted speedily without repeating starting failures. A compressor, driven by a DC motor, has a shell of an internal pressure approximately equal to the pressure of an inhalation gas. An inverter is provided to make the speed of the DC motor variable. A rotational frequency setting circuit sets the rotational frequency of the DC motor to a frequency that is not greater than the frequency of a commercial power source when the internal temperature of a refrigerator is stabilized. By this construction, the power consumption can be remarkably reduced.

公开(公告)号：DE69626073T2

公开(公告)日：2004-02-05

申请号：DE69626073

申请日：1996-03-14

Applicant: MATSUSHITA REFRIGERATION

Inventor： HAMAOKA KOUJI OSAKA ,  OGAWA KEIJI ,  SHIBUYA KOYO ,  SATOMURA TAKASHI ,  OGAHARA HIDEHARU ,  TSUJII YASUHIRO ,  KURIMOTO KAZUNORI

IPC: F25B1/00 ,  F25B1/04 ,  F25B31/00 ,  F25B49/02 ,  H02P1/46 ,  H02P6/06 ,  H02P6/08 ,  H02P6/18 ,  H02P6/182 ,  H02P6/21 ,  H02P6/20

Abstract: When a lock detector detects a locked state of a DC motor in a starting stage, a torque increasing circuit immediately selects a starting sequence pattern of an output torque that is greater in magnitude by one preselected step, and outputs the selected output torque to a starting sequence controller, so that a compressor can be restarted speedily without repeating starting failures. A compressor, driven by a DC motor, has a shell of an internal pressure approximately equal to the pressure of an inhalation gas. An inverter is provided to make the speed of the DC motor variable. A rotational frequency setting circuit sets the rotational frequency of the DC motor to a frequency that is not greater than the frequency of a commercial power source when the internal temperature of a refrigerator is stabilized. By this construction, the power consumption can be remarkably reduced.