Abstract: The liquid refrigerant from the compressor 20 and the condenser 21 is alternately supplied to the cooling device for the freezing room 27F and the evaporator for the refrigeration room 27R through the three-way valve 24, so that the freezing room and the refrigeration room are alternately cooled. Here, the ratio of the refrigerant supply time to each evaporator is controlled based not on a deviation between a target temperature set for each storage room and an actual storage room temperature measured in each storage room, but on an integrated value obtained by integrating the difference of these deviations. In a cooling storage, in which from one compressor a refrigerant is selectively supplied to multiple evaporators respectively disposed in multiple storage rooms of varied thermal loads, a one-storage room cooling mode is prevented from being unnecessarily switched to a alternate cooling mode.

Abstract: A refrigerated showcase is provided that can easily carry out a maintenance operation and the like of a cooling mechanism disposed in a machine chamber. A machine chamber 13 is defined on a side of a heat insulating box 16 defining a storage chamber 12 and also provided with a cooler to cool the storage chamber 12 to have a cooling mechanism 80 disposed therein to circularly supply a refrigerant to the cooler, and a front side of the storage chamber 12 and the machine chamber 13 is covered with a single front glass 14. Then, a side of the machine chamber 13 is defined by a detachable second side panel to configure the machine chamber 13 to open laterally in a state of removing the second side panel, and also the cooling mechanism 80 is placed on a unit base 38 drawable from the machine chamber 13 to configure to allow the unit base 38 to be drawn from the machine chamber 13 via a side opening of the machine chamber 13 opened by removing the second side panel.

Abstract: A cooling apparatus such as a refrigerator includes a refrigeration cycle including a compressor driven by an electric motor, a condenser, a throttle valve and an evaporator, a first physical amount detector capable of detecting a physical quantity representing a temperature of an object to be cooled by the cooling operation of the evaporator, a temperature control device capable of controlling a rotating speed of the motor based on the physical quantity detected by the first physical quantity detector so that the object is cooled approximately to a target temperature, a second physical quantity detector capable of detecting a physical quantity corresponding to a performance margin of the refrigeration cycle, and a rotating speed limiter capable of limiting the rotating speed of the motor to or below a predetermined speed based on a physical quantity detected by the second physical quantity detector.

Abstract: An automatic ice making machine is provided that is capable of modifying an amount of feeding water depending on a temperature of makeup water. The automatic ice making machine is equipped with a deicing timer 42 to keep time of a deicing completion time period T1 in which deicing operation is completed. In addition, in a control means 24, a deicing water longest supply time period U1 is preset, which is a longest time period to supply deicing water in deicing operation. In a case where the deicing water is low in temperature, so that the deicing progresses slowly and thus the deicing completion time period T1 becomes equal to or greater than the deicing water longest supply time period U1, the control means 24 carries out water feeding in a feeding amount of water at low temperature at the time of water feeding.

Abstract: To restrict the deposition of stain on an ice making unit, and prevent damage to resin components or the like. The above problems are solved by the followings. Ice making water is supplied to the front surface of an ice making plate cooled by refrigerant supplied to an evaporation tube during an ice making cycle to produce ice blocks. During a deicing cycle, deicing water is supplied by opening a water feed valve WV to the rear surface of the ice making plate to be heated by hot gas supplied to the evaporation tube. When a water feed time has elapsed, the water feed valve WV is closed to temporarily stop deicing water supply. After the water feed time elapsed, a cycle, in which the water feed valve WV is opened as much as an intermittent water supply time every time an intermittent stopping time has elapsed to intermittently supply deicing water, is repeated until a deicing cycle completes.

Abstract: A showcase where an illumination device is placed outside a receiving chamber to enable effective use of the space in the receiving chamber. The inside of an insulated box body (16) having front glass (18) fitted in a front opening (56) is defined to form a receiving chamber (52). An upper evaporator (34) is placed in an upper insulating layer (54) of the insulated box body (16) so as to be in contact with a cooling plate (62) defining the upper surface of the receiving chamber (52). An opening (64) is formed in that portion of the cooling plate (62) with which the upper evaporator (34) is not in contact, and a receiving space (66) is formed in that portion of the upper insulating layer (54) to which the opening (64) faces. A holder (78) is placed at the receiving space (66), and inside the holder (78) is received and fixed an LED illumination device (70). The opening (64) is closed by a cover (86) with packing (84) in between, and the inside of the holder (78) is maintained in a sealed state.

Abstract: A back surface of an outer case is formed by mutually overlapping left and right back panels. The overlapping edges on the front side and backside of the panels may be bent toward the opposite side at a blunt angle. A joint between the back panels is established in which the overlapping edge of one back panel is pressed against the overlapping edge of the other back panel. Spacers are mounted between the outer and inner case such that the overlapping edges are put in close contact with each other. The bends are deformed in order to prevent leakage from the joint after the injection of foam liquid. Due to the pressure of the foam, both of the overlapping edges are placed in closer contact while deforming the bends to be substantially flat. Consequently, the sealing properties of the joint after the completion of the thermally insulated housing are secured.

Abstract: A door body holding structure that can hold a door body at an open position by using a simple configuration. A projecting portion 40, which projects toward a containing wall 38 side, is provided on an outer surface of a bearing portion 32 of a fixed-side hinge at a position facing the containing wall 38 where the projecting portion 40 does not come into contact with an inner surface of a guide portion 34 when the door body 18 is at a closed position but the projecting portion 40 comes into contact with the inner surface of the guide portion 34 when the door body 18 is at the open position. A separation dimension between a projecting end of the projecting portion 40 and the containing wall 38 is set to be smaller than a thickness dimension of the guide portion 34.

Abstract: In a refrigeration unit including a variable performance compressor driven by an inverter motor, a sensor is configured to detect a physical amount corresponding to a refrigerant pressure on the high-pressure side of a refrigerant circuit. A measured value of the physical amount is compared with a first reference value corresponding to a first predetermined pressure of the refrigerant and a second reference value corresponding to a second predetermined pressure lower than the first predetermined pressure. A protective operation can start if the comparison result indicates that an actual refrigerant pressure is higher than the first predetermined pressure. The performance of the compressor can be gradually lowered if the comparison result indicates that an actual refrigerant pressure is between the first predetermined pressure and the second predetermined pressure.

Abstract: A back surface of an outer case is formed by mutually overlapping left and right back panels. The overlapping edges on the front side and backside of the panels may be bent toward the opposite side at a blunt angle. A joint between the back panels is established in which the overlapping edge of one back panel is pressed against the overlapping edge of the other back panel. Spacers are mounted between the outer and inner case such that the overlapping edges are put in close contact with each other. The bends are deformed in order to prevent leakage from the joint after the injection of foam liquid. Due to the pressure of the foam, both of the overlapping edges are placed in closer contact while deforming the bends to be substantially flat. Consequently, the sealing properties of the joint after the completion of the thermally insulated housing are secured.

Abstract: One aspect of the present invention includes a cooling storage cabinet having a compressor that is included in a freezing device, a heater that is connected in parallel with the compressor to a power source, a switch that controls supply of current to the compressor, and a control unit that stops supply of current to the heater during a predetermined time after the switch operates start-up of the compressor.

Abstract: Provided is an inexpensive and compact cooling device which does not increase the circulation resistance of a refrigerant, filling quantity of a refrigerant in a natural circulation circuit wherein natural convection of the refrigerant is caused by using a thermo-siphon, and cross-sectional areas of individual passages while maintaining a desired cooling efficiency in the circuit. A secondary cooling device (40) includes a secondary heat exchange section (42) of a cascade heat exchanger (HE) which liquifies a gaseous-phase secondary refrigerant, and an evaporator (EP) which vaporizes a liquid-phase secondary refrigerant. The secondary cooling device (40) is provided with a plurality of natural circulation circuits (48) equipped with liquid pipings (44) and gas pipings (46) which connect the secondary heat exchange section (42) and the evaporator (EP). The evaporator (EP) has evaporation passages (52) of the natural circulation circuits (48) provided in layers vertically apart from one another.

Abstract: There is provided a water sprinkle pipe for a downflow type ice making machine that regulates a flow of ice making water to suppress generation of turbulence and can uniformly supply the ice making water from water sprinkle holes. A water sprinkle pipe (22) comprises: a pipe body (24) that is arranged to extend above an ice making section, has a flow region (38) for the ice making water defined therein, and has one end communicating with a discharge opening of a circulation pump (30); and a plurality of water sprinkle holes (26) provided in a lower surface of the pipe body (24) in an extending direction. A regulation portion (40) protruding from an inner surface of the pipe body (24) to the flow region (38) side to locally narrow the flow region (38) is provided on an upper surface of the pipe body (24) on an upstream side of the upstream-most water sprinkle holes (26). Further, a semicircular regulation portion (42) is formed on a downstream side of the regulation portion (40) in the pipe body (24).

Abstract: Ice making water is uniformly supplied to ice making regions of an ice making section.

Abstract: A dishwashing machine executes a washing or rinsing step of jetting hot water accumulated in a tank into a washing room. The dishwashing machine includes a heater for heating the hot water in the tank, a temperature sensor for measuring the temperature of the hot water in the tank, and a heater control unit for controlling the heater so that the hot-water temperature in the tank becomes a set temperature, based on the measured value of the temperature sensor. The heater control unit is capable of controlling the heater so that the hot-water temperature in the tank becomes a waiting temperature that is lower than the set temperature, in a quiescent operating state in which the washing or rinsing step is not executed.

Abstract: In this dishwasher 1, a spring 33 utilized for moving a door 7 up and down is accommodated within a column 6 of a washer body 2, so as to be confined within the column 6, whereby the appearance becomes better while the spring 33 is protected against water. Also, the space between left and right columns 6, 6 can be utilized as a washing chamber 3, thus making it possible to expand the washing chamber 3, whereby the dishwasher can be made smaller while keeping the capacity of the washing chamber 3.

Abstract: A cooling device is provided with an inverter compressor. Set speeds of the inverter compressor can be switched to six stages from a first speed to a sixth speed. The relationship between each of the set speeds of the rotational speed is set so that the stages adjacent to each other have gradually larger differences in rotational speed as the rotational speed becomes higher. With this, independently from the level of the rotational speed, a degree of increase in cooling performance between each of the stages can be equalized. In a case of performing a control to increase or decrease the rotational speed of the inverter compressor stage by stage depending whether an actual temperature drop rate is larger or smaller than a target temperature drop rate, the change amounts in cooling performance that can be substantially equalized, and too high or too low cooling performance does not result, i.e. fluctuation in cooling performance can be minimized.

Abstract: In the dishwasher, a washing water distribution pipe on which washing nozzles are installed is arranged within a washing chamber, and is connected removably to a first connecting pipe that communicates with the outlet side of a washing pump. In the same way, a rinsing water distribution pipe on which rinsing nozzles are installed is arranged within the washing chamber, and is connected removably to a second connecting pipe that communicates with the outlet side of a rinsing pump. These connections are made within a washing water tank in the bottom of the washing chamber, therefore the washing water distribution pipe and the rinsing water distribution pipe can be easily installed and removed from the washing chamber. Moreover, the washing water distribution pipe and the rinsing water distribution pipe are unitized, so handling is extremely easy.