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    AUTOMATIC ICE-MAKING SYSTEM
    4.
    发明专利
    AUTOMATIC ICE-MAKING SYSTEM 失效

    公开(公告)号：JP2002206828A

    公开(公告)日：2002-07-26

    申请号：JP2001002202

    申请日：2001-01-10

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA YUKIO

    IPC: F25C1/24

    Abstract: PROBLEM TO BE SOLVED: To provide an automatic ice-making system, in which variation in the water-supply quantity is suppressed, which results from variation in the time for supplying water, in relation to a water-flow-path selector valve for supplying water to a plurality of ice-making trays used in an automatic icemaker of a refrigerator. SOLUTION: A cylindrical water-port 1c and discharge ports 1d, 1e are provided to sides 1a, 1b of a main body 1. A valve 2 is moved by motor 3 so as to close selectively the ports 1d, 1e. Inner diameters of the ports 1d, 1e are different from each other, that is, 1e is smaller than 1d. If the port 1c is elected for supplying water to the small ice-making tray, quantity of water flow is made less, and the time for water supply becomes about the same as in the case of supplying water to a large ice-making tray.

    ELECTRIC EQUIPMENT COVER FOR COMPRESSOR
    5.
    发明专利
    ELECTRIC EQUIPMENT COVER FOR COMPRESSOR 失效

    公开(公告)号：JP2002180966A

    公开(公告)日：2002-06-26

    申请号：JP2000375640

    申请日：2000-12-11

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA YUKIO ,  YAMAMOTO KIYONORI ,  KISHINAKA YUUJI ,  NAKAYAMA MIKIHIRO

    IPC: F04B39/00 ,  F25D19/00

    Abstract: PROBLEM TO BE SOLVED: To prevent electric equipment from becoming an ignition source, even if combustible refrigerant is leaked, in an electric equipment cover for a compressor using the combustible refrigerant. SOLUTION: In this electric equipment cover 1, a rib 1a is constituted in such a state as surrounding an overload protection device 3 and a slit part 1b is provided therein. The slit part 1b is provided with a cord 3a having a length sufficient in being drawn out to the outside of the rib 1a, when the overload protection device 3 is fitted thereto. The inside of the rib 1a is hermetically sealed by a sidewall 3b of the overload protection device 3, a sealed bottom face 3c, and the cord 3a so that a terminal part 3d of the overload protection device 3, in which the combustible refrigerant is liable to enter, is protected from being exposed to the combustible refrigerant and the combustible refrigerant is prevented from entering into the inside contact part 3e. This constitution can eliminate the combustible refrigerant from entering into the inside of the overload protection device 3, even if the combustible refrigerant is leaked, thereby eliminating it from becoming the ignition source.

    EXCESSIVE RISING TEMPERATURE PREVENTING DEVICE FOR MOTOR
    6.
    发明专利
    EXCESSIVE RISING TEMPERATURE PREVENTING DEVICE FOR MOTOR 失效

    公开(公告)号：JP2000184660A

    公开(公告)日：2000-06-30

    申请号：JP35564298

    申请日：1998-12-15

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA YUKIO

    IPC: H01H37/02 ,  H01H37/54 ,  H02K11/00

    Abstract: PROBLEM TO BE SOLVED: To provide an excessive rising temperature preventing device with excellent response in heat-sensitivity which is directly fitted to a thin terminal of a compressor motor which is inverter-controlled, related to an excessive rising temperature preventing device for a motor. SOLUTION: A bimetal 3 is so positioned so that a high-expansion metal side 3a faces an inner-surface bottom part 1a of a case 1, a movable contact- point 4 is so provided on both ends for contacting a contact-point part 2a of a fixed contact-point 2, and the center is pressurized with a screw 5 for adjusting inversion temperature. A pin connector 6 is housed in a recessed part 1d while insulated from the bimetal. The pin connector 6 is fitted to a pin terminal 8a so that the high-expansion metal side 3a faces a compressor 9, one of a terminal part 2b is connected to a power source while the other to an inverter control board. A tab terminal part 8a and pin terminals 8b and 8c are connected to the inverter control board as well.

    POWER SUPPLY PLUG
    7.
    发明专利
    POWER SUPPLY PLUG 失效

    公开(公告)号：JPH1032058A

    公开(公告)日：1998-02-03

    申请号：JP18575496

    申请日：1996-07-16

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA YUKIO ,  UEDA KUNIHIKO ,  YASUDA ASAAKI

    IPC: H01R13/713

    Abstract: PROBLEM TO BE SOLVED: To provide a power supply plug with overcurrent shutting-off function and small size at low cost. SOLUTION: A current collecting terminal 2 and a cord 9 are connected through a thermostat element 4 and a fixed electric contact 6, a toggle 7 for preventing the natural resetting of the thermostat element 4, which was operated at overcurrent, performed by being cooled is arranged, and thereby, when overcurrent flows, the thermostat element 4 is operated so as to shut off overcurrent, and the reset of the thermostat element 4 is prevented by the function of the toggle 7 to retain a overcurrent shutting off state. A power supply plug with overcurrent shutting off function simple in structure and small in size is provided at low cost.

    OVERLOAD PROTECTOR FOR MOTOR AND MANUFACTURE THEREOF
    8.
    发明专利
    OVERLOAD PROTECTOR FOR MOTOR AND MANUFACTURE THEREOF 失效

    公开(公告)号：JPH0574308A

    公开(公告)日：1993-03-26

    申请号：JP23601991

    申请日：1991-09-17

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA YUKIO ,  TANAKA TAKASHI ,  YOKOI NOBORU ,  YAMAKAWA YOSHIZO

    IPC: H01H37/76 ,  H01H37/54 ,  H01H61/01 ,  H02K11/00

    Abstract: PURPOSE:To prevent a motor from being burnt in an overload protector for the motor by providing a circuit breaking spring having energizing force in the overload protector for the motor connected in series to a winding of the motor, and connecting the spring via a thermofusible material. CONSTITUTION:A circuit breaking spring 10 is disposed in series on the way of an overload protector for a motor, where an outside connecting pin terminal 9, a heater terminal plate 3, a heater 4, a fixed contact 2a, a movable contact 6a, a thermostat element 5, another movable contact 6b and another fixed contact 2b are connected in series in this order, to be connected via a thermofusible material 11. The thermofusible material 11 is fused due to abnormal heat generation so that a circuit is broken by energizing force of the spring.

    TEMPERATURE FUSE AND OVERCURRENT PROTECTION DEVICE
    9.
    发明专利
    TEMPERATURE FUSE AND OVERCURRENT PROTECTION DEVICE 失效

    公开(公告)号：JPH0574295A

    公开(公告)日：1993-03-26

    申请号：JP23602091

    申请日：1991-09-17

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： YAMAKAWA YOSHIZO ,  YOKOI NOBORU ,  MORIKAWA YUKIO

    IPC: H01H37/54 ,  H01H37/76

    Abstract: PURPOSE:To enable holding the circuit in off condition irrespective of the fusion strength of the contact by constructing the overcurrent protection device by using a pair of terminal plates urged in mutually parting directions and a temperature sensing member formed of a shape memory alloy serving to cause the terminal plates to contact with each other. CONSTITUTION:The load current causes a heater 26 and a bimetal 18 to generate heat in themselves in proportion to the largeness of the current flowing through a circuit composed of a spring terminal 23, a heater 25, a heater terminal plate 24, a terminal plate 26, a stationary contact plate 15, a bimetal 18, and a stationary contact plate 14. The load current is then turned into an overcurrent. When the temperature of the bimetal 18 rises up to a temperature higher than a set temperature value, the bimetal 18 inverts and parts from the contact to break the circuit. Next, when the cooled bimetal temperature drops down to a temperature lower than the set temperature value, the bimetal 18 again inverts and is restored to the original position again to close the circuit. Repeating this, the bimetal 18 undergoes fatigue breakage to cause fusion of the contact. This contact fusion permits continuous current passage, so that the heater heat conducts to a temperature sensing section 26 via the heater terminal plate 24 to transform the shape memory alloy made sensing member and release the inter-terminal contact, thereby holding the circuit off.

    SELECTOR VALVE FOR WATER-SUPPLY PATH OF AUTOMATIC ICEMAKER, WATER-SUPPLY SYSTEM AND ITS CONTROL METHOD FOR AUTOMATIC ICE-MAKING
    10.
    发明专利
    SELECTOR VALVE FOR WATER-SUPPLY PATH OF AUTOMATIC ICEMAKER, WATER-SUPPLY SYSTEM AND ITS CONTROL METHOD FOR AUTOMATIC ICE-MAKING 失效

    公开(公告)号：JP2002206831A

    公开(公告)日：2002-07-26

    申请号：JP2001003324

    申请日：2001-01-11

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： MORIKAWA YUKIO ,  ONISHI ICHIRO ,  TSUJIMOTO AKINORI ,  MASAKU MASATOSHI ,  ASADA MASAHARU

    IPC: F25C1/24

    Abstract: PROBLEM TO BE SOLVED: To provide a selector valve for a water-supply path having a structure, in which water does not remain in the inside after water is supplied, in relation to the valve for supplying water to a plurality of water-making trays for an automatic icemaker of a refrigerator. SOLUTION: A cylindrical water inlet 1b and discharge ports 1c, 1d are provided on a side face 1a of a main body 1. A channel 2a is formed peripherally in the valve 2, so the valve can be removed slidably rotating on the side face 1a of the body 1. When the channel 2a is positioned between the port 1b and the port 1c (as shown), water coming from the port 1b is discharged through the channel 2a from the port 1d. When the channel 2a is positioned between the port 1b and the port 1d (hot shown), water is discharged from the port 1d. The sectional area D of the water-flow path surrounded by the channel 2a and the side face 1a is constituted to be equal to the sectional area d of the ports 1c, 1d. The velocity of the flowing water hardly changes, and a stable discharge is carried out scarcely having turbulence in the flow, and waterdrops hardly adhere on the flow path.

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