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    APARATO REFRIGERADOR, Y CONTROL DE REFRIGERADOR Y MECANISMO DE ARRANQUE DEL MOTOR SIN ESCOBILLAS QUE SE UTILIZA EN EL MISMO.
    14.
    发明专利
    APARATO REFRIGERADOR, Y CONTROL DE REFRIGERADOR Y MECANISMO DE ARRANQUE DEL MOTOR SIN ESCOBILLAS QUE SE UTILIZA EN EL MISMO. 未知

    公开(公告)号：MX9605427A

    公开(公告)日：1998-02-28

    申请号：MX9605427

    申请日：1996-03-14

    Applicant: MATSUSHITA REFRIGERATION

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

    IPC: H02P06/20

    Abstract: Cuando los mecanismos detectores 17 detectan un estado bloqueado del motor DC 4 en la etapa de arranque, los mecanismos de aumento del torque 18, 27, 29o 31, inmediatamente seleccionan un patron de secuencia de arranque de un torque de salida que es mayor por un paso, lo emiten a los mecanismos para el control de la secuencia de arranque 13, de manera tal que se puede volver a arrancar el compresor 5 rápidamente sin repetir las fallas de arranque. El compresor 41, accionado por el motor DC 43, tiene una estructura de una presion interna aproximadamente igual a la presion de un gas de inhalacion. Se proporciona un inversor 53 para hacer variable la velocidad del motor DC 43. Un circuito para establecer la frecuencia de rotacion 56 establece la frecuencia de rotacion del motor DC 43 a una frecuencia no mayor que la frecuencia de la fuente de energía comercial cual la temperatura interna del refrigerador se estabiliza. Por medio de esta construccion, se puede reducir de forma remarcable el consumo de energía.

    15.
    发明专利
    未知

    公开(公告)号：BR9605932A

    公开(公告)日：1997-08-12

    申请号：BR9605932

    申请日：1996-03-14

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： HAMAOKA KOUJI ,  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.

    VIBRATION TYPE COMPRESSOR
    16.
    发明专利
    VIBRATION TYPE COMPRESSOR 失效

    公开(公告)号：JPH08247025A

    公开(公告)日：1996-09-24

    申请号：JP5430895

    申请日：1995-03-14

    Applicant: MATSUSHITA REFRIGERATION ,  MATSUSHITA ELECTRIC IND CO LTD

    Inventor： YAMAMOTO HIDEO ,  SATOMURA TAKASHI ,  MORITA ICHIRO ,  FUJIWARA NORIYUKI ,  NAKABASHI AKIHISA

    IPC: F04B17/04 ,  F04B35/04 ,  F04B49/10 ,  H01F7/06 ,  H02K33/02

    Abstract: PURPOSE: To provide a vibration type compressor generating no over-stroke of a piston. CONSTITUTION: This vibration type compressor 15 constitute o a displacement detector 21 connected in the axial direction of a piston 14, a converter circuit converting AC power into DC power, an inverter circuit converting DC into AC and applying a voltage to a coil by switching transistors, a top dead center position calculating means calculating the top dead center position of the piston 14 based on the piston position signal from the displacement detector 21, and an amplitude control means changing the output voltage of the inverter circuit in response to the difference between the top dead center position and the top dead center reference value set in advance.

    DC MOTOR CONTROLLER
    17.
    发明专利
    DC MOTOR CONTROLLER 失效

    公开(公告)号：JPH08289585A

    公开(公告)日：1996-11-01

    申请号：JP8813395

    申请日：1995-04-13

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： OGAWARA HIDEJI ,  OGAWA KEIJI ,  HAMAOKA KOJI ,  SATOMURA TAKASHI ,  SHIBUYA HIROMI ,  TSUJII YASUHIRO

    IPC: H02P6/12 ,  H02P6/06 ,  H02P6/08 ,  H02P6/17 ,  H02P6/18 ,  H02P6/182 ,  H02P6/21

    Abstract: PURPOSE: To prevent the failure in commutation and step out by forcibly outputting the commutation pulse and chopping signals at the time of start where the detection of position is not obtained, and checking the position of a rotor at the time of finish of forced commutation. CONSTITUTION: A commutation circuit 7 makes out a commutation pulses to commutate the semiconductor switches 3a-3f of an inverter circuit 3 from the output of a position detecting circuit 6. A chopping signal generating circuit 11 makes out waveforms different in on/off ratio with constant frequency, according to the duty value for varying the revolution of a DC motor 4. A forced commutation control means 13 outputs commutation pulses and chopping signals if the output of the a position detecting circuit 6 can not be obtained at the time of start of the DC motor 4. A composition circuit 17 composes commutation pulse and chopping signals. A rotor position checking means 19 checks the position of the rotor at the point of time when the forced commutation by starting sequence is finished.

    VIBRATING TYPE COMPRESSOR
    18.
    发明专利
    VIBRATING TYPE COMPRESSOR 失效

    公开(公告)号：JPH10288165A

    公开(公告)日：1998-10-27

    申请号：JP9348497

    申请日：1997-04-11

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： SATOMURA TAKASHI ,  YAMAMOTO HIDEO ,  SHIBUYA HIROMI ,  WATAKABE SHUSAKU

    IPC: F04B49/06 ,  F04B17/04 ,  F04B35/04 ,  F04B49/08

    Abstract: PROBLEM TO BE SOLVED: To improve compression efficiency by detecting a top dead center position of a piston, feedbacking a difference of the position from an expected value to the amplitude value of the piston, detecting a common frequency of a compressor and operating the piston by the common frequency. SOLUTION: A point which is the closest to a valve mounted on a cylinder 101 when a piston 102 reciprocates is detected as a top dead center location from a position signal of the piston 102 that a displacement detecting part 105 detects by a top dead center location detecting part 106. The resonance frequency of a system constituted of the piston 102 and a resonance spring 104 is detected by a resonance frequency detecting part 109. When the top dead center location is deviated from a preliminarily fixed value, an VAC Vac value that a driving part 103 impresses on the piston 102 is determined by a control part 110 based on the top dead center location. Further, the driving part 103 determines the frequency value of VAC Vac that the driving part 103 impresses on the piston 102, based on the resonance frequency.

    OSCILLATORY TYPE COMPRESSOR
    19.
    发明专利
    OSCILLATORY TYPE COMPRESSOR 失效

    公开(公告)号：JPH09324764A

    公开(公告)日：1997-12-16

    申请号：JP14407396

    申请日：1996-06-06

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： SHIBUYA HIROMI ,  YAMAMOTO HIDEO ,  SATOMURA TAKASHI

    IPC: F04B49/06 ,  F04B17/04 ,  H02M7/48 ,  H02P25/04 ,  H02P27/08 ,  H02P7/63

    Abstract: PROBLEM TO BE SOLVED: To correctly conform both time ratios to each other by providing an inverter control means controlling so as to equalize the time ratio of a compression period to a suction period to the time ratio of positive half-wave to negative half-wave of output voltage of an inverter circuit. SOLUTION: A top-dead-center/bottom-dead-center position computing means 45 computes the top dead center position and the bottom dead center position of a piston from the piston position signal from a displacement detector 37. Next, a piston displacement time ratio computing means 48 computes the time ratio of a compression period to a suction period in one cycle of the piston from the top dead center position and the bottom dead center position. Hereafter, an inverter control means 47 PWM-controls an inverter circuit 41, so as to equalize the time ratio of positive half-wave to negative half-wave of output voltage of an inverter circuit 41 to the time ratio of the compression period to the suction period.

    VIBRATION TYPE COMPRESSOR
    20.
    发明专利
    VIBRATION TYPE COMPRESSOR 失效

    公开(公告)号：JPH11141464A

    公开(公告)日：1999-05-25

    申请号：JP30016297

    申请日：1997-10-31

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： SHIBUYA HIROMI ,  YAMAMOTO HIDEO ,  SATOMURA TAKASHI

    IPC: F04B49/06 ,  F04B35/04 ,  H02K41/02

    Abstract: PROBLEM TO BE SOLVED: To improve efficiency by always operating a piston by a resonance frequency by not only keeping constant the top dead point location of the piston but also detecting the resonance frequency of a system constituted of the piston, a resonance spring and refrigerant gas, in a vibration type compressor to be used in a refrigerator. SOLUTION: In this vibration type compressor, a PWM waveform output part 101 generates a PWM waveform and outputs the waveform from a voltage value command that a voltage determining part 113 outputs based on the top dead point location of a piston 107 and a frequency command that a resonance frequency detecting part A 115 outputs by detecting a resonance frequency of a system constituted of the piston 107, a resonance spring 108 and refrigerant gas from an operating frequency detected value of the piston 107 and an alternating voltage calculated value.

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