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    REFRIGERATOR WITH THAWING CHAMBER
    51.
    发明专利
    REFRIGERATOR WITH THAWING CHAMBER 失效

    公开(公告)号：JPH0452476A

    公开(公告)日：1992-02-20

    申请号：JP16212690

    申请日：1990-06-20

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： NAKAMURA ATSUSHI

    IPC: F25D11/02

    Abstract: PURPOSE:To provide a thawing chamber which can thaw in a short time without thawing irregularity in a refrigerator by waiting energization of a defrost heater until thawing is finished even if a defrost timer integrates to complete the operation of a compressor for a predetermined time during thawing, further stopping energization of a heater, forcible opening of a damper thermo and continuous operation control of a blower during thawing at the time of non-thawing, and maintaining the thawing chamber at a third temperature zone between the cold storage temperature and a refrigerating temperature. CONSTITUTION:A thawing chamber 15 at the time of non-thawing is controlled by judging whether the temperature of the chamber 15 is higher than a set temperature, i.e., a partially freezing temperature of about -3 deg.C or not if a thawing switch 53 is OFF, outputting a HIGH signal to damper thermo driving means from thawing chamber temperature detecting means 31 if it is high, releasing a damper thermo 20, outputting a LOW signal to the damper thermo driving means if it is low and closing the themo 20. Thus, even at the time of non-thawing, the chamber 15 is temperature-regulated to be maintained in a third temperature zone between a refrigerating temperature adapted for preserving perishable foods and cold storage temperature, i.e., a partially freezing temperature zone of about -3 deg.C. Even if the period of defrosting of a cooler 17 is superposed during thawing, the energization of a defrost heater is waited, and thawing is preferentially conducted. Thus, stable thawing can be always obtained.

    REFRIGERATOR WITH THAWING CHAMBER
    52.
    发明专利
    REFRIGERATOR WITH THAWING CHAMBER 失效

    公开(公告)号：JPH0452475A

    公开(公告)日：1992-02-20

    申请号：JP16212290

    申请日：1990-06-20

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： NAKAMURA ATSUSHI

    IPC: F25D23/12 ,  F25D11/02

    Abstract: PURPOSE:To provide a thawing chamber which can thaw in a short time without thawing irregularity in a refrigerator by stopping energization of a heater, forcible opening of a damper thermo and continuous operation control of a blower during thawing at the time of non-thawing and when a higher temperature than a set temperature is sensed by freezing chamber temperature sensing means, and maintaining the thawing chamber at a third temperature zone between the cold storage temperature and a refrigerating temperature. CONSTITUTION:In thawing in a case where the temperature of a freezing chamber 13 temporarily becomes high, energizations of a heater 34 and a lower heater 42 are stopped, a thawing chamber 15 is temperature-regulated to be maintained in a second temperature zone between a cold storage temperature adapted for preserving perishable foods and a refrigerating temperature, i.e., in a partially freezing temperature zone of about -3 deg.C. The chamber 15 at the time of non-thawing is controlled by repeating releasing and opening of a damper thermo 20 if a thawing switch 53 is OFF. Thus, even at the time of non-thawing, the chamber 15 is temperature-regulated to be maintained in the third temperature zone between the cold storage temperature adapted for preserving the perishables and the refrigerating temperature, i.e., partially freezing temperature zone of about -3 deg.C.

    REFRIGERATOR
    54.
    发明专利
    REFRIGERATOR 失效

    公开(公告)号：JPH02126079A

    公开(公告)日：1990-05-15

    申请号：JP28083988

    申请日：1988-11-07

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： UJI YUTAKA ,  MORIMOTO KATSUHIKO ,  NAKAMURA ATSUSHI

    IPC: F25D17/08

    Abstract: PURPOSE:To ensure a steady cabinet interior temperature control by disposing a screen adjacent to the side of a flap and a cold air discharge opening respectively directed to the upper and lower parts of the refrigerated compartment from the side of the screen and above the lower end of it so as to prevent the condensation or icing on or near to the flap. CONSTITUTION:A control panel 15 houses in it a damper thermostat 18 comprising a flap 16 and an arm 17. Cold air is routed from the refrigerated compartment through a duct 19, and on to the upper part of the refrigerated compartment through a cold air inlet 20 out of an outlet 21 and also to the lower part of the refrigerated compartment from an outlet 22 through a discharge duct 23 in the control panel. A screen 24 is positioned such that its lower end is located below any of the outlets 21, 22. By this constitution, if a moist load is stored in the refrigerated compartment under the low outside temperature which tends to cause the flap 16 to fully close, the warm air rising from the discharge air duct 23 to the outlet 22 is blocked its convection near to the flap by the screen 24. It instead circulates by convection to the outlet 21, resulting in little chance of condensation or icing near the flap.

    REFRIGERATOR
    55.
    发明专利
    REFRIGERATOR 失效

    公开(公告)号：JPH01107075A

    公开(公告)日：1989-04-24

    申请号：JP26451587

    申请日：1987-10-20

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： NAKAMURA ATSUSHI ,  MATSUI YOSHIAKI ,  YONEMURA MINORU

    IPC: F25D17/08 ,  F25D29/00

    Abstract: PURPOSE: To suppress supercooling due to delayed response of a damper opening/closing apparatus and prevent foods from being frozen by disposing a temperature sensitive section of the damper opening/closing apparatus of a third chamber disposed in a refrigeration chamber and controlled independently from the refrigeration chamber in close vicinity with an inner box disposed parallely to the refrigeration chamber. CONSTITUTION: A temperature adjusting apparatus 19 for a third chamber 8 disposed in a refrigeration chamber 7 and controlled independently from the refrigeration chamber is adapted such that a container section opened facing an inner box 3 and a cover is formed at a side end thereof, and a temperature sensitive section 13 of the damper opening/closing apparatus 12 is contained in the container section such that it approaches the inner box 3. Hereby, when fresh air temperature is lowered, and when the refrigeration chamber damper opening/closing apparatus is set to be lower than usual cases and hence refrigeration chamber temperature is lowered, air temperature near the temperature sensitive section is lowered, so that the amount of discharged cold air into the third chamber is controlled to be slightly less, and hence inflow of unnecessary cold air is suppressed to prevent contained foods from being frozen owing to supercooling.

    REFRIGERATOR
    56.
    发明专利
    REFRIGERATOR 失效

    公开(公告)号：JPH01102274A

    公开(公告)日：1989-04-19

    申请号：JP26217087

    申请日：1987-10-16

    Applicant: MATSUSHITA REFRIGERATION

    Inventor： NAKAMURA ATSUSHI ,  MATSUI YOSHIAKI

    IPC: F25D17/08

    Abstract: PURPOSE: To prevent a baffle part from being frosted by disposing a screen upward a baffle of a damper opening/closing apparatus in a cold air discharge passage from a temperature adjusting apparatus to a refrigeration chamber, and providing a cold air discharge outlet to the refrigeration chamber at the left and right of an upper portion of the screen, and further communicating both cold air discharge outlets above the screen. CONSTITUTION: When a wet load is contained in a refrigeration chamber 3 at the time a full closing rate of a baffle 12 of a damper opening/closing apparatus 10 is high upon low fresh air temperature, warm moisture rising and invading from a cold air discharge passage 18a is obstructed with a screen 16 disposed on an upper portion of the baffle 12 in its downward convection and is deposited as frost on an inner wall surface of the cold air discharge passage 18b becoming low temperature owing to a duct part 13a during the time the warm moisture convects or stays in the second cold air discharge passage 18b, so that frosting due to invasion of the warm moisture in the refrigerator in the vicinity of the baffle 12 is substantially eliminated. Further, frost deposited on the inner wall surface of the cold air discharge passage 18b is sublimed with moisture removed cold air passing through a condenser 5 when the degree of an opening ratio of the baffle 12 of the damper opening/closing apparatus is high, and it is deposited on a lower temperature condenser not on the inner wall surface to keep thereafter smooth temperature control.

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