WO2007132605A1 - 冷却貯蔵庫及びその運転方法 - Google Patents
冷却貯蔵庫及びその運転方法 Download PDFInfo
- Publication number
- WO2007132605A1 WO2007132605A1 PCT/JP2007/057881 JP2007057881W WO2007132605A1 WO 2007132605 A1 WO2007132605 A1 WO 2007132605A1 JP 2007057881 W JP2007057881 W JP 2007057881W WO 2007132605 A1 WO2007132605 A1 WO 2007132605A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- temperature
- storage
- compressor
- room
- cooling
- Prior art date
Links
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
- F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B1/00—Compression machines, plants or systems with non-reversible cycle
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
- F25B49/025—Motor control arrangements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B5/00—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity
- F25B5/02—Compression machines, plants or systems, with several evaporator circuits, e.g. for varying refrigerating capacity arranged in parallel
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/02—Compressor control
- F25B2600/021—Inverters therefor
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B2600/00—Control issues
- F25B2600/25—Control of valves
- F25B2600/2511—Evaporator distribution valves
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/10—Sensors measuring the temperature of the evaporator
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
- Y02B30/70—Efficient control or regulation technologies, e.g. for control of refrigerant flow, motor or heating
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B40/00—Technologies aiming at improving the efficiency of home appliances, e.g. induction cooking or efficient technologies for refrigerators, freezers or dish washers
Definitions
- the present invention relates to a cooling storage of a type including a plurality of evaporators and supplying refrigerant from a single compressor to the evaporators and an operation method thereof.
- Patent Document 1 Conventionally, as an example of this type of cooling storage, the one described in Patent Document 1 is known.
- a freezer compartment and a refrigerator compartment having different set temperatures are insulated and partitioned in a heat-insulating storage body, and an evaporator is arranged in each compartment. Compressor power of the stand Cooling by alternately supplying refrigerant.
- a condenser is connected to a discharge side of a compressor driven by an inverter motor, and a downstream side of the refrigeration cycle is branched into two refrigerant supply paths via a three-way valve to supply each refrigerant.
- the passage is provided with a capillary tube and the above evaporator, and the outlets of the evaporators are connected in common and then returned to the compressor. Then, while the compressor is in operation, the refrigerant is alternately supplied to each evaporator by switching the three-way valve, whereby the freezer compartment and the refrigerator compartment are alternately cooled, and either the freezer compartment or the refrigerator compartment is shifted.
- a compressor driven by an inverter motor when a compressor driven by an inverter motor is provided as a compressor, some of the chambers are cooled along a predetermined temperature curve when cooling each chamber.
- a target temperature curve is stored in advance, and the target temperature is maintained by controlling the rotational speed of the compressor in accordance with the deviation between the target temperature and the actual room temperature. ing.
- the compressor can be continuously turned on for a long time. In other words, the number of on / off switching operations is greatly reduced, so that high efficiency and energy saving can be achieved.
- Patent Document 1 Japanese Patent Laid-Open No. 2001-133113
- the rotation speed of the compressor is controlled to be high.
- the freezing room and the refrigerating room are alternately cooled, and the room temperature of the freezing room first falls below the set temperature, that is, the TF (ofi) temperature.
- the compressor has a high rotational speed, so that the cooling capacity becomes excessive and the refrigerating room may become too cold.
- the surface of the shelf network 2 is placed on the plate 3
- the temperature at position 5 on the uppermost shelf network 2 immediately before the cold air outlet of the internal fan 4 is R It is considerably lower than the temperature in the vicinity of the indoor air inlet where the room temperature sensor 6 is installed (the solid temperature curve X in the figure).
- the temperature detected by the R room temperature sensor 6 falls below the set temperature, i.e., reaches the TR (ofi) temperature, the blow-out of the cold air is stopped. There was a problem that some parts were overcooled locally, such as on the shelf network 2.
- the present invention has been completed based on the above circumstances, and its purpose is to alternately cool a plurality of storage chambers having different set temperatures.
- the storage chamber having the higher set temperature This is to prevent the storage room from being overcooled when it is switched to independent cooling.
- the operation method of the cooling storage of the present invention includes an inverter compressor, a condenser, a valve device, first and second evaporators, a throttling device for restricting refrigerant flowing into each evaporator, and the first and second evaporators.
- the first and second storage chambers equipped with an evaporator and having different set temperatures are provided, the refrigerant is alternately supplied to the respective evaporators by the valve device, and the set temperatures of the respective store chambers While changing the rotation speed of the inverter compressor based on the deviation from the room temperature of the storage room, the storage rooms are alternately cooled so as to approach the set temperature, and the first and second storage rooms If the room temperature of one of the storage rooms falls below the set temperature, only the other storage room is cooled alone, In the cooling storage where the inverter compressor is stopped when the temperature is lower than the set temperature, the first and second storage chambers are alternately cooled with the operation of the inverter compressor, and then the set temperature is set. In the case where the higher storage chamber is switched to single cooling, the number of revolutions of the inverter compressor is lowered.
- the cooling storage of the present invention includes an inverter compressor having a variable rotation speed, a condenser for releasing heat from the refrigerant compressed by the inverter compressor, an inlet connected to the condenser side, and two A valve device in which an outlet is connected to the first and second refrigerant supply paths, and a flow path switching operation for selectively communicating the inlet side with any of the first and second refrigerant supply paths is possible.
- a first and second evaporator provided in each of the first and second refrigerant supply paths, a throttling device for restricting the refrigerant flowing into each evaporator, and the first and second evaporations
- the refrigerant outlet side of the refrigeration unit and the refrigerant circulation passage connected to the refrigerant suction side of the inverter compressor, and the first and second evaporators having different set temperatures from each other 1st and 2nd cooled by cold air generated by A storage body having a storage room, and first and second temperature sensors for detecting indoor temperatures of the first and second storage rooms, respectively, and during the operation of the inverter compressor, the valve
- the apparatus alternately supplies the refrigerant to the evaporators, and changes the rotational speed of the inverter compressor based on the deviation between the set temperature of the storage chambers and the indoor temperature of the storage chambers.
- the inverter compressor is provided with an operation control means for stopping the inverter compressor.
- a compressor control means for reducing the rotation speed of the inverter compressor is provided. It is characterized by the configuration.
- the alternate cooling of the two storage chambers is performed by supplying the refrigerant alternately to each evaporator by the switching operation of the valve device, and between the set temperature of each storage chamber and the detected indoor temperature. Based on the deviation, the number of revolutions of the inverter compressor is increased or decreased while each storage room It cools alternately so that each set temperature may be approached.
- the room temperature of one of the storage rooms falls below the set temperature, only the other store room is cooled alone, but the storage room with the higher set temperature is switched to single cooling. In some cases, the speed of the inverter compressor is reduced at the time of switching.
- the inverter compressor rotation speed is likely to be controlled at the time of alternate cooling, and the storage chamber with the higher set temperature is switched to independent cooling as it is. There is a concern that the cooling capacity will be excessive.
- the rotational speed of the inverter compressor is immediately reduced, that is, the cooling capacity is reduced.
- the compressor control means has a function of decreasing the rotation speed of the inverter compressor stepwise with a predetermined time interval. Suppressing the cooling capacity is more effective if the number of revolutions of the inverter compressor is drastically reduced. However, if it is drastically reduced at one time, it is difficult for the lubricating oil to rotate inside the compressor, which may cause a shortage of lubricating oil. is there. In this respect, in this configuration, the rotational speed is decreased stepwise with a predetermined interval, so that the lubricating oil can be rotated well while the cooling capacity suppressing function is reliably performed.
- the compressor control means has a function of not decelerating the inverter compressor below a predetermined minimum rotational speed.
- the speed is not reduced below a predetermined minimum rotational speed. This can sufficiently contribute to the reduction of cooling capacity if the speed is reduced to the minimum speed, but when restarting the inverter compressor, the cooling capacity can be recovered early by not reducing the speed more than necessary. It is for doing so.
- a control stop means for stopping deceleration control of the inverter compressor is provided when an acceleration processing instruction for the inverter compressor is issued during independent cooling of the storage chamber having a higher set temperature. ing.
- Deceleration control of the inverter compressor is stopped. Insufficient cooling capacity due to unnecessarily lower inverter compressor speed It is prevented.
- the rotational speed of the inverter compressor is immediately reduced, that is, the cooling capacity is reduced.
- the storage chamber is prevented from overcooling locally, for example near the cold air outlet.
- FIG. 1 is a cross-sectional view showing the overall structure of a refrigerator-freezer according to an embodiment of the present invention.
- FIG. 3 A graph showing changes over time in the target temperature of the freezer and refrigerator compartments
- FIG. 5 is a flowchart showing the control procedure of the compressor speed.
- FIG. 7 is a flowchart showing the procedure for determining the ratio of the refrigerant supply time to the refrigerator compartment and the freezer compartment
- FIG. 8 is a flowchart showing the procedure for switching cooling control between the refrigerator compartment and the freezer compartment.
- FIG. 12 is a timing chart showing changes in the rotational speed of each compressor and the temperature of each part according to a conventional example.
- FIG. 13 is a cross-sectional view showing the cold air circulation mode in the refrigerator compartment
- This embodiment exemplifies the case where it is applied to a horizontal (table type) freezer refrigerator for business use! / Speak.
- Reference numeral 10 denotes a storage body, which is constituted by a horizontally long heat insulation box opened on the front surface and supported by legs 11 provided at the four corners of the bottom surface.
- the interior of the storage body 10 is partitioned into left and right by a heat insulating partition wall 12 to be retrofitted, and the left side is relatively narrow, the side is a freezer compartment 13F corresponding to the first storage room, the right wide side is the first side This is the refrigeration room 13R, which corresponds to 2 storage rooms.
- a rotating heat insulating door is attached to the opening of the front of the freezer compartment 13F and the refrigerator compartment 13R so as to be opened and closed.
- a machine room 14 is provided on the left side as viewed from the front of the storage body 10.
- an evaporator room 15 on the heat-insulating freezer compartment side that communicates with the freezer compartment 13 F is formed so as to overhang, and an evaporator 27 F and an internal fan 28 F are provided here.
- a refrigeration unit 16 is housed in the lower part thereof so that it can be taken in and out.
- a duct 17 is stretched on the surface of the partition wall 12 facing the refrigerator compartment 13R to form an evaporator chamber 18 on the refrigerator compartment side, and an evaporator 27R and an internal fan 28R are provided therein.
- the refrigeration unit 16 includes a compressor 20 driven by an inverter motor (corresponding to the inverter compressor of the present invention) and a condenser 21 connected to the refrigerant discharge side of the compressor 20.
- a condenser fan 22 (shown only in FIG. 2) for air-cooling the condenser 21 is also installed.
- the outlet side of the condenser 21 is connected to an inlet 24 A of a three-way valve 24 that is a valve device through a dryer 23.
- the three-way valve 24 has one inlet 24A and two outlets 24B and 24C, and each outlet 24B and 24C is connected to the first and second refrigerant supply paths 25F and 25R.
- the three-way valve 24 can perform a flow path switching operation that selectively connects the inlet 24A to one of the first and second refrigerant supply paths 25F and 25R.
- the first refrigerant supply passage 25F has a freezer compartment-side capillary tube 26 corresponding to a throttling device. F and the above-described freezer compartment side evaporator 27F (first evaporator) are provided.
- the second refrigerant supply path 25R is also provided with a cold-tube-side capillary tube 26R, which is also a throttling device, and the above-described refrigerator-side evaporator 27R (second evaporator). .
- the refrigerant outlets of both evaporators 27 F and 27R are connected in series with accumulator 29F, check valve 30 and accumulator 29R, and the downstream force of check valve 30 also branches to the suction side of compressor 20.
- a continuous refrigerant circulation channel 31 is provided.
- the refrigerant circulation path returning from the discharge side to the suction side of the compressor 20 described above constitutes a well-known refrigeration cycle 35 that supplies refrigerant to the two evaporators 27F and 27R by one compressor 20.
- the supply destination of the liquid refrigerant can be changed by the valve 24.
- the refrigerant is alternately supplied to the evaporators 27F and 27R by switching the three-way valve 24, whereby the freezer compartment 13F and the refrigerator compartment 13R are alternately cooled, and the freezer The room 13F and the refrigerating room 13R are each cooled along a predetermined temperature curve.
- the compressor 20 and the three-way valve 24 described above are controlled by a refrigeration cycle control circuit 40 incorporating a CPU.
- the refrigeration cycle control circuit 40 includes a refrigeration side temperature sensor 41F (hereinafter referred to as F sensor 41F) corresponding to a first temperature sensor that detects the air temperature in the freezer compartment 13F, and the air temperature in the refrigerator compartment 13R.
- a signal from a refrigeration-side temperature sensor 41R (hereinafter referred to as R sensor 41R) corresponding to a second temperature sensor for detecting s is provided.
- the F sensor 41 F and the R sensor 41R are respectively arranged near the suction port of the evaporator chamber 15 on the freezer compartment side and near the suction port of the evaporator chamber 18 on the refrigerator compartment side.
- a target temperature setter 45 which sequentially outputs different target temperatures as time passes.
- each target temperature of the freezer compartment 13F and the refrigerator compartment 13R is given as a change mode with time (that is, a state in which the target temperature is changed with time t).
- the target temperature change mode during the control operation that cools stored items such as food to the set temperature set by the user, and when the power is turned on for the first time after installing this refrigerator-freezer, for example. In addition, it cools to a temperature range that is considerably higher than the set temperature during control operation!
- each change mode is expressed by a function with time t as a variable for each freezing room 13F and refrigeration room 13R, and the function is configured by, for example, an EEPROM.
- the values of the temperature deviations ATF, ATR are given to the temperature deviation integrated value calculating means 48 and the room temperature deviation integrating means 50 in the next stage.
- the following control is performed to determine the rotation speed of the inverter motor that drives the compressor 20.
- the inverter motor set speed (number of rotations) can be switched in 7 stages from 0 to 6 speed, and the relationship between each set speed and inverter frequency is shown in Fig. 4.
- both deviations ATR and ATF are added together for 2 minutes to 10 minutes (5 minutes in this embodiment) and integrated, and the value is given to the rotational speed control means 49.
- the rotation speed control means 49 compares the accumulated value A of the deviation with a predetermined reference value (lower limit value and upper limit value). When the accumulated value A is larger than the upper limit reference value L (A) _UP, the rotation of the inverter motor When the accumulated value A is smaller than the lower limit reference value L (A) _DOWN, the inverter motor speed is decreased.
- the functions of the temperature deviation integrated value calculation means 48 and the rotation speed control means 49 are realized by software executed by the CPU, and the processing procedure of the software is shown in FIG.
- the integrated value A is initialized to, for example, 0 (step SI 1).
- the target temperature setter 45 reads out a predetermined function from the storage means 46, and substitutes the variable t (the elapsed time from the start of this routine) into the function, so that each target of the refrigerator compartment 13R and the freezer compartment 13F is set.
- Calculate the temperatures TRa and TFa steps SI 2 and S13
- step S15 the integrated value A is compared with the upper limit reference value L (A) _UP and the lower limit reference value L (A) _DOWN to increase or decrease the rotation speed of the inverter motor (rotation speed control means 49 Function: steps 315-317).
- the time-varying force of each of the target temperatures TRa and TFa of the refrigerator compartment 13R and the freezer compartment 13F during the pull-down cooling operation is set as shown by the dashed line in FIG.
- the actual internal temperature TF, TR of the refrigerator compartment 13R and freezer compartment 13F changes as shown by the solid line graph, for example, in the refrigerator compartment 13R side, compared to the target temperature TRa at the beginning of the cooling operation.
- the internal temperature TR is cooled so that it is lower, and on the freezer compartment 13 F side, the internal temperature TF is cooled so that it is almost equal to the target temperature TFa, so the overall temperature deviation becomes negative, Integrated value A also becomes negative.
- the graph of the integrated value A has a sawtooth waveform because the integrated value A is initialized every predetermined time (step S18 in FIG. 5). Since the integrated value A becomes negative and falls below the lower limit reference value L (A) _D OWN, the inverter frequency is gradually reduced at the beginning, and as a result, the rotation speed of the compressor 20 is reduced stepwise. Since the capacity is suppressed, the internal temperature approaches the target temperature drop.
- the room temperature exceeds the target temperature as a result of the reduced cooling capacity, the temperature deviations of the freezer compartment 13F and the refrigerator compartment 13R and their integrated values A will shift to positive, and the total integrated value A will be the upper limit.
- the reference value L (A) _UP is exceeded, the rotational speed of the compressor 20 is increased, the cooling capacity is increased, and the internal temperature approaches the degree of decrease in the target temperature again.
- the internal temperature decreases in accordance with the temporal change of the set target temperature.
- the upper and lower limits are determined above and below the set temperature, and the room moves from the upper limit to the lower limit.
- a change mode of the target temperature indicating how the temperature should be changed with time is converted into a function and stored in the storage means 46, and the rotational speed of the compressor 20 is controlled in the same manner as the pull-down cooling operation.
- the difference between the room temperature detected by the sensors 41F and 41R is calculated and integrated every predetermined time, and the rotation of the inverter motor that drives the compressor 20 based on the comparison between the integrated value and the predetermined reference value
- the control is stabilized without the refrigeration cycle control circuit 40 reacting sensitively and increasing the rotational speed of the compressor 20 rapidly.
- the refrigerant is alternately supplied to the evaporators 27F and 27R by switching the three-way valve 24, whereby the freezing chamber 13F and the refrigerating chamber 13R are alternately cooled.
- the ratio of the refrigerant supply time to each of the evaporators 27F and 27R within a certain time is controlled.
- the inter-room temperature deviation integrating means 50 calculates the inter-room temperature deviation, which is the difference between these calculated temperature deviations ATF, ATR (ATR- ⁇ TF), and calculates the "room temperature deviation". It has a function to accumulate for a predetermined time (for example, 5 minutes).
- the valve control means 51 controls the opening ratio of the first and second refrigerant supply paths 25F, 25R in the three-way valve 24 according to the value accumulated by the inter-room temperature deviation integrating means 50. It has become. Specifically, the opening ratio of the above-described refrigerant supply paths 25F and 25R is, as an initial value, the ratio of R (second refrigerant supply path 25R): F (first refrigerant supply path 25F) is 3: 7. In other words, the time ratio during which the refrigerator compartment 13R is cooled (R room single cooling time ratio) is 0.3, and the R room single cooling time ratio is 0.1 to 0 in increments of 0.1. It can be changed within the range of 9.
- the temperature deviation calculating means 47, the inter-room temperature deviation integrating means 50, and the valve control means 51 are configured by software executed by the CPU, and the specific control mode thereof is shown in FIG. 7 and FIG. This will be described based on a flowchart.
- the integrated value B is first initialized (step S21), and at that time, the refrigerating room 13R given from the R sensor 41R. of Deviation between actual room temperature TR and target temperature TRa of refrigeration room 13R (R room temperature deviation) ATR is calculated (step S22), and then the actual temperature of freezer room 13F to which F sensor 41F force is also applied at that time Deviation between the room temperature TF of the room and the target temperature TFa of the freezer room 13F (F room temperature deviation) ATF is calculated (step S23).
- the “room temperature deviation” (ATR — ATF), which is the difference between the temperature deviations ATR and ATF between the refrigerator compartment 13R and the freezer compartment 13F obtained here, is calculated and integrated as an integrated value B (step S24), it is determined whether or not the force at the end of one cycle set in step S25 has been completed. If it has not ended, steps S22 to S24 are repeated until the end, and the integrated value B for one cycle is calculated. To do.
- the integrated value B calculated in step S24 is compared with the upper reference value L (B) _UP and the lower reference value L (B) _DOWN (step S26). If it is larger than (B) _UP, it means that the integrated value of the R room temperature deviation ATR is considerably large, so the R room single cooling time ratio RR is changed from the initial value 0.3 to 1 step (0.1) If the accumulated value B is smaller than the lower limit reference value L (B) _DOWN, the accumulated value of the R room temperature deviation ATR is small, and conversely, the F room temperature temperature deviation ATF is considerably large.
- step S28 the integrated value B is initialized in step S29, and the process returns to step S22. If the integrated value B is between the upper limit reference value L (B) _UP and the lower limit reference value L (B) _DOWN, the process returns to step S22 without changing the R room single cooling time ratio RR.
- step S31 the cycle elapsed time timer value ts is reset (step S31), and the three-way valve 24 is switched to open the refrigerator compartment 13R side (second refrigerant flow path 25R side) (step S32). It is determined whether or not the cooling time has been completed (step S33), and steps S32 and S33 are repeated until the time is completed to cool the refrigerator compartment 13R.
- the cooling time of the refrigerating room 13R is calculated by multiplying the predetermined period To (for example, 5 minutes) by the above-described R room single cooling time ratio RR.
- step S34 when the value of the cycle elapsed time timer ts force period Tookoko R room single cooling time ratio RR is multiplied by the value (To XRR) or more, the three-way valve 24 is now in the freezer compartment 13F side (first (Cooling channel 25F side) is switched to open (step S34), and it is switched until the cycle To elapses. Steps S34 and S35 are repeated to cool the freezer compartment 13F, and when the period To elapses, the process returns to step S31 and the above cycle is repeated. As a result, for example, while one cycle To of 5 minutes elapses, the refrigerator compartment 13R and the freezer compartment 13F are alternately cooled, and the ratio of their cooling time is determined by the R room single cooling time ratio RR. It will be.
- the refrigerator compartment 13R and the freezer compartment 13F when determining the ratio of the refrigerant supply time to the refrigerator compartment 13R and the freezer compartment 13F, simply monitor the deviations ATR and ATF between the target temperature and the actual room temperature in each of the storage compartments 13R and 13F. If the storage room with the larger deviations ATR and ATF is controlled to cool for a longer time, for example, the insulated door of the storage room is opened, and the outside air flows into the storage room. If the temperature rises temporarily, the supply of cooling medium to the storage room immediately increases, so that the cooling proceeds even though the door is closed and the internal temperature tends to return. There is concern about overcooling the chamber. In contrast, in this embodiment, the deviation ATF is used.
- the freezer compartment 13F and the refrigerator compartment 13R are alternately cooled while the compressor 20 is operated, and the room temperature of one of the refrigerator compartment 13F and the refrigerator compartment 13R is changed.
- the temperature falls below the set temperature, only the other side is cooled alone, and when both the freezer compartment 13F and the refrigerator compartment 13R are below the set temperature, the compressor 20 is stopped. ing.
- step S41 When the compressor 20 is started (step S41), the three-way valve 24 performs the flow path switching operation at the determined time ratio, and the refrigerator compartment 13R and the freezer compartment 13F are alternately cooled (steps). S42).
- step S43 the temperature of the refrigerator compartment 13R is compared with the preset refrigerator compartment lower limit temperature TR (OFF) based on the signal from the R sensor 41R.
- step S44 F Based on the signal from the sensor 41F, the temperature of the freezer 13F Compare the set freezer compartment lower limit temperature TF (OFF).
- the process returns from step S44 to step S42, and the R room and F room are alternately cooled.
- step S43 When cooling progresses and the room temperature force of the refrigerator compartment 13R falls below the preset refrigerator compartment lower limit temperature TR (OFF), the process proceeds from step S43 force to step S45, and the three-way valve 24 is ⁇ F side open state '' Only the freezer compartment 13F is cooled. After this, the process proceeds to step S46, and whether or not the room temperature force of the refrigerating room 13R is preset based on the signal from the R sensor 41R has reached the refrigerating room upper limit temperature TR (ON). Is judged. In general, immediately after the alternate cooling of the R room and the F room, the refrigeration room 13R is sufficiently cooled, so the next step S47 is reached, and the internal temperature of the freezing room 13F is determined based on the signal from the F sensor 41F. It is determined whether or not the freezer compartment lower limit temperature TF (OFF) is set in advance, and steps S45 to S47 are repeated until the freezer compartment lower limit temperature TF (OFF) falls below. As a result, only the freezer compartment 13F is intensive
- step S46 the process returns from step S46 to step S42 and the alternate cooling of the R room and the F room is resumed. That is, since the cooling of the refrigerator compartment 13R is also restarted, the temperature rise of the refrigerator compartment 13R can be quickly suppressed.
- step S47 When the "F room single cooling" sufficiently cools the freezing room 13F and the room temperature falls below the freezing room lower limit temperature TF (OFF), the process proceeds from step S47 to step S48, and the compressor 20 is turned on. It is stopped and the restart of the compressor 20 is prohibited until the compressor forced stop time T elapses (step S49). While this forced stop time T elapses, the liquid refrigerant supplied to the evaporator F on the freezer compartment 13F side evaporates, and the high / low pressure difference of the compressor 20 is eliminated.
- step S50 When the compressor forced stop time T elapses in step S49, step S50 is reached and the temperature of the freezer compartment 13F is compared with the preset freezer compartment upper limit temperature TF (ON) based on the F sensor 41F signal.
- step S51 the temperature of the refrigerating room 13R is compared with the preset refrigerating room upper limit temperature TR (ON) based on the signal from the R sensor 41R.
- the temperature of the freezer compartment 13F or the refrigerator compartment 13R If it is higher, the compressor 20 is started (steps S52 and 53), the process proceeds to step S45 or step S54, and the cooling of the freezer compartment 13F or the refrigerator compartment 13R is resumed.
- the compressor 20 is started on the condition that the temperature of the freezer compartment 13F or the refrigerator compartment 13R exceeds the upper limit temperature.
- step S44 if the freezer compartment 13F first falls below the freezer compartment lower limit temperature TF (OFF) (step S44), the process proceeds to step S54 and is three-way. Only the refrigerating room 13R is cooled by performing the flow path switching operation to the “R side open state” of the valve 24. Thereafter, the process proceeds to step S55, where it is determined whether or not the room temperature force of the freezer compartment 13F has reached the preset freezer compartment upper limit temperature TF (ON) based on the signal from the F sensor 41F.
- the process proceeds to the next step S56, and whether or not the room temperature of the refrigerator compartment 13R has reached the preset refrigerator compartment lower limit temperature TR (OFF) based on the signal from the R sensor 41R. Until the temperature falls below the lower limit temperature TR (OFF) of the refrigerating room, "R room independent cooling" is executed.
- step S55 If the temperature of the freezer compartment 13F rises midway, the process returns from step S55 to step S42, and the alternate cooling of the R compartment F room is resumed.
- step S56 As a result of the “cooling of the R room alone”, if the temperature of the refrigerating room 13R cools to the lower limit temperature TR (OFF) of the refrigerating room (step S56), compression is performed assuming that both FR rooms have been cooled conventionally.
- the process here again moved to “F room single cooling” (step S45), and when the temperature of the freezer compartment 13F was cooled to the freezer compartment lower limit temperature TF (OFF), compression was performed.
- Machine 20 is stopped (step S48).
- the freezer compartment 13F is always cooled last and the temperature is cooled to the lower limit temperature TF (OFF). It is prevented in advance that the temperature of the freezer compartment 13F rises to an inappropriate region during the compressor 20 stop period.
- step S62 it is determined in step S62 whether there is a request for activation of R single overcooling prevention control (including during startup) or a request for stop (including during stoppage). If there is a start request (if a flag is set), the process proceeds to step S63.
- step S63 the set speed (see FIG. 4) of the compressor 20 at this time point is detected, and if the set speed exceeds “second speed”, the process proceeds to step S64.
- the time measured by the deceleration interval timer is detected, and steps S62 to S64 are repeated until “30 seconds” has elapsed as the deceleration interval.
- step S65 the rotation speed of the compressor 20 is reduced by one step (step S65), and then the process returns to step S61, and the above operation is repeated as long as the flag is set. .
- step S62 if there is a request to stop the “R single overcooling prevention control” in step S62 (if the flag is cleared), the process returns to step S61 and the deceleration control of the compressor 20 is stopped.
- step S63 If it is determined in step S63 that the set speed of the compressor 20 has been reduced to “second speed”, the process returns to step S61 and the subsequent deceleration control of the compressor 20 is stopped.
- step S70 the activation request for “R single overcooling prevention control” is made (a flag is set: step S70), and then the rotation speed of the compressor 20 is decreased by one stage (step S71).
- R room F room alternating cooling is performed while the three-way valve 24 performs the flow path switching operation according to the time ratio determined as described above, and the rotation speed of the compressor 20 is controlled so as to follow the target temperature curve.
- the refrigerator compartment 13R and the freezer compartment 13F are alternately cooled.
- the rotation speed of the compressor 20 is controlled to be high.
- step S70 when the room temperature of the freezer compartment 13F falls below the lower limit temperature TF (OFF), a request for starting “R single overcooling prevention control” is made (step S70 in FIG. 9), and the rotation of the compressor 20 is started.
- the number is reduced by one step (step S71), and then the three-way valve 24 performs the flow path switching operation to the “R side open state”, thereby cooling only the refrigerating room 13R (R room independent cooling: Step S5 4).
- step S73 a request to stop the “R single overcooling prevention control” is made (step S73 in FIG. 9).
- the compressor 20 is stopped after waiting for the room temperature of the freezing chamber 13F to fall below the lower limit temperature TF (OFF) (step S48).
- the compressor 20 does not decelerate below the predetermined minimum speed (“second speed”). This is because if the speed is reduced to “second speed”, the cooling capacity can be sufficiently reduced, while the compressor 20 is restarted and the rotational speed is not lowered more than necessary.
- the time interval when the rotation speed of the inverter compressor is decreased stepwise is not limited to “30 seconds” exemplified in the above embodiment, but the number of stages, the inverter frequency at each stage, and the capacity of the compressor Other times may be taken into consideration.
- the rotational speed of the inverter compressor depends on the integrated value of the deviation between the target temperature and the actual indoor temperature.
- the inverter compressor speed may be controlled based only on the deviation! /.
- the freezer is always cooled last when both the storage chambers are below the set temperature and the inverter compressor is stopped. Inverter compression when the storage room temperature is below the set temperature As a control method to stop the machine.
- a refrigerator-freezer provided with a freezing room and a refrigerated room has been illustrated, but the present invention is not limited to this, and the refrigerated room and the thawing room, two refrigerated rooms with different storage temperatures, or two freezer rooms
- refrigerant is supplied from a common compressor to the evaporators provided in each storage room. Can be applied.
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP07741317A EP2019275A4 (en) | 2006-05-15 | 2007-04-10 | COOLING STORAGE COMPARTMENT AND METHOD FOR OPERATING THE SAME |
US12/227,067 US20090235677A1 (en) | 2006-05-15 | 2007-04-10 | Cooling Storage Cabinet and Method of Operating Thereof |
CN2007800172951A CN101443611B (zh) | 2006-05-15 | 2007-04-10 | 冷却储藏箱及其运转方法 |
US13/281,693 US9080805B2 (en) | 2006-05-15 | 2011-10-26 | Cooling storage cabinet with dual evaporators and an inverter compressor |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2006135564A JP5097361B2 (ja) | 2006-05-15 | 2006-05-15 | 冷却貯蔵庫及びその運転方法 |
JP2006-135564 | 2006-05-15 |
Related Child Applications (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US12/227,067 A-371-Of-International US20090235677A1 (en) | 2006-05-15 | 2007-04-10 | Cooling Storage Cabinet and Method of Operating Thereof |
US13/281,693 Division US9080805B2 (en) | 2006-05-15 | 2011-10-26 | Cooling storage cabinet with dual evaporators and an inverter compressor |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2007132605A1 true WO2007132605A1 (ja) | 2007-11-22 |
Family
ID=38693706
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2007/057881 WO2007132605A1 (ja) | 2006-05-15 | 2007-04-10 | 冷却貯蔵庫及びその運転方法 |
Country Status (7)
Country | Link |
---|---|
US (2) | US20090235677A1 (ja) |
EP (1) | EP2019275A4 (ja) |
JP (1) | JP5097361B2 (ja) |
KR (1) | KR101070639B1 (ja) |
CN (1) | CN101443611B (ja) |
TW (1) | TWI391619B (ja) |
WO (1) | WO2007132605A1 (ja) |
Families Citing this family (38)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4626714B2 (ja) * | 2008-08-22 | 2011-02-09 | ダイキン工業株式会社 | 冷凍装置 |
EP2436999B1 (en) * | 2009-05-29 | 2018-05-09 | Daikin Industries, Ltd. | Air-conditioning device |
KR101658552B1 (ko) | 2010-01-22 | 2016-09-21 | 엘지전자 주식회사 | 냉장고 및 냉장고의 제어방법 |
WO2011136592A2 (ko) * | 2010-04-28 | 2011-11-03 | 엘지전자 주식회사 | 건조기의 제어방법 |
US9140478B2 (en) | 2012-05-21 | 2015-09-22 | Whirlpool Corporation | Synchronous temperature rate control for refrigeration with reduced energy consumption |
US9140477B2 (en) | 2012-05-21 | 2015-09-22 | Whirlpool Corporation | Synchronous compartment temperature control and apparatus for refrigeration with reduced energy consumption |
US9140479B2 (en) | 2012-05-21 | 2015-09-22 | Whirlpool Corporation | Synchronous temperature rate control and apparatus for refrigeration with reduced energy consumption |
DE102012214117A1 (de) * | 2012-08-09 | 2014-02-13 | BSH Bosch und Siemens Hausgeräte GmbH | Kältegerät und Betriebsverfahren dafür |
JP6080559B2 (ja) * | 2013-01-17 | 2017-02-15 | 株式会社クボタ | 自動販売機の冷却装置 |
KR102033934B1 (ko) * | 2013-03-15 | 2019-10-18 | 엘지전자 주식회사 | 냉장고 |
US10145589B2 (en) * | 2013-03-15 | 2018-12-04 | Whirlpool Corporation | Net heat load compensation control method and appliance for temperature stability |
US20140318157A1 (en) * | 2013-04-25 | 2014-10-30 | Heatcraft Refrigeration Products Llc | Refrigerated Storage Case |
US9746226B2 (en) * | 2013-11-04 | 2017-08-29 | Lg Electronics Inc. | Refrigerator |
US9982927B2 (en) | 2013-11-04 | 2018-05-29 | Lg Electronics Inc. | Refrigerator and method of controlling the same |
DE102013223737A1 (de) * | 2013-11-20 | 2015-05-21 | BSH Hausgeräte GmbH | Einkreis-Kältegerät |
WO2016016913A1 (ja) * | 2014-07-30 | 2016-02-04 | 三菱電機株式会社 | 空気調和装置 |
CN104236149A (zh) * | 2014-10-11 | 2014-12-24 | 合肥美的电冰箱有限公司 | 用于冰箱的制冷系统和冰箱 |
KR20160084149A (ko) * | 2015-01-05 | 2016-07-13 | 엘지전자 주식회사 | 냉장고의 제어방법 |
DE102015003244A1 (de) * | 2015-02-25 | 2016-08-25 | Liebherr-Hausgeräte Ochsenhausen GmbH | Kühl- und/oder Gefriergerät |
CN105318646B (zh) * | 2015-06-05 | 2018-09-04 | Tcl智能科技(合肥)有限公司 | 变频冰箱制冷控制方法、装置和变频冰箱 |
US10955164B2 (en) | 2016-07-14 | 2021-03-23 | Ademco Inc. | Dehumidification control system |
CN106352646A (zh) * | 2016-08-31 | 2017-01-25 | 安徽康佳同创电器有限公司 | 一种冰箱及该冰箱的冰箱制冷控制方法 |
CN106247737B (zh) * | 2016-09-08 | 2019-04-02 | 江苏白雪电器股份有限公司 | 双温双控制冷系统与双间室冷柜及其控制方法 |
US11079152B2 (en) * | 2017-07-07 | 2021-08-03 | Bsh Home Appliances Corporation | Control logic for compact ice making system |
CN107490233B (zh) * | 2017-08-04 | 2020-04-07 | 南京创维家用电器有限公司 | 一种防止冷藏室结冰的控制方法、存储介质及冰箱 |
KR102518479B1 (ko) | 2018-08-02 | 2023-04-06 | 엘지전자 주식회사 | 냉장고의 제어방법 |
KR102567056B1 (ko) * | 2018-08-02 | 2023-08-16 | 엘지전자 주식회사 | 냉장고의 제어방법 |
KR102659139B1 (ko) | 2018-09-14 | 2024-04-19 | 엘지전자 주식회사 | 냉장고 및 그의 제어방법 |
US11371768B2 (en) * | 2018-12-28 | 2022-06-28 | Lg Electronics Inc. | Refrigerator and method for controlling the same |
CN112484367A (zh) * | 2019-09-12 | 2021-03-12 | 博西华电器(江苏)有限公司 | 冰箱以及用于冰箱的方法 |
CN112484369A (zh) * | 2019-09-12 | 2021-03-12 | 博西华电器(江苏)有限公司 | 冰箱以及用于冰箱的方法 |
CN112484368A (zh) * | 2019-09-12 | 2021-03-12 | 博西华电器(江苏)有限公司 | 冰箱以及用于冰箱的方法 |
CN110906621B (zh) * | 2019-10-30 | 2023-06-09 | 合肥晶弘电器有限公司 | 一种制冷设备瞬冻控制方法及制冷设备 |
CN110940133B (zh) * | 2019-10-30 | 2023-04-11 | 合肥晶弘电器有限公司 | 一种制冷设备瞬冻控制方法及制冷设备 |
CN112833605B (zh) * | 2019-11-25 | 2023-12-22 | 博西华电器(江苏)有限公司 | 制冷设备以及用于制冷设备的方法 |
CN111854236B (zh) * | 2020-08-27 | 2023-12-12 | 河北省人工影响天气中心 | 改进的温控系统及方法 |
EP4063771B1 (en) * | 2021-03-22 | 2024-02-07 | Arçelik Anonim Sirketi | A method of operating a cooling appliance |
CN115682542A (zh) * | 2021-07-29 | 2023-02-03 | 博西华电器(江苏)有限公司 | 冰箱及用于其的方法 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5888559A (ja) * | 1981-11-20 | 1983-05-26 | 三菱電機株式会社 | 冷却装置 |
JPH11304328A (ja) * | 1998-04-24 | 1999-11-05 | Toshiba Corp | 冷蔵庫の冷却運転制御装置 |
JP2000230766A (ja) * | 1999-02-09 | 2000-08-22 | Matsushita Refrig Co Ltd | 冷却サイクル及び冷蔵庫 |
JP2001133113A (ja) | 1999-11-01 | 2001-05-18 | Matsushita Refrig Co Ltd | 冷蔵庫 |
JP2005121341A (ja) * | 2003-10-20 | 2005-05-12 | Hoshizaki Electric Co Ltd | 冷却貯蔵庫 |
JP2005265267A (ja) * | 2004-03-18 | 2005-09-29 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
Family Cites Families (20)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS60188982U (ja) * | 1984-05-25 | 1985-12-14 | 株式会社東芝 | 冷凍冷蔵庫 |
US4646534A (en) * | 1985-07-15 | 1987-03-03 | Earl Russell | Means for refrigeration speed control |
JPH01193562A (ja) * | 1988-01-29 | 1989-08-03 | Toshiba Corp | 空気調和機 |
US5062276A (en) * | 1990-09-20 | 1991-11-05 | Electric Power Research Institute, Inc. | Humidity control for variable speed air conditioner |
KR0180596B1 (ko) * | 1995-05-10 | 1999-05-01 | 정몽원 | 냉동저장고의 온도 보상방법 |
JP3538021B2 (ja) * | 1998-04-24 | 2004-06-14 | 株式会社東芝 | 冷蔵庫の冷却運転制御装置 |
IT1301875B1 (it) | 1998-07-29 | 2000-07-07 | Whirlpool Co | Controllo autoadattivo per la regolazione di frigoriferi e congelatori |
KR100268502B1 (ko) * | 1998-07-30 | 2000-10-16 | 윤종용 | 냉장고의 균일냉각장치 및 그 제어방법 |
JP2000111230A (ja) * | 1998-10-02 | 2000-04-18 | Toshiba Corp | 冷凍冷蔵庫 |
DE19846860A1 (de) | 1998-10-12 | 2000-04-13 | Bsh Bosch Siemens Hausgeraete | Verfahren zur Temperaturregelung in einem Kühlfach |
DE69916231D1 (de) | 1999-02-19 | 2004-05-13 | Ranco Inc Of Delaware Wilmingt | Regler und Verfahren zur Regelung der Temperatur in einem Kühlschrank |
JP2001082850A (ja) * | 1999-09-08 | 2001-03-30 | Toshiba Corp | 冷蔵庫 |
JP3464949B2 (ja) * | 1999-09-21 | 2003-11-10 | 株式会社東芝 | 冷蔵庫 |
CN100400989C (zh) * | 2001-03-21 | 2008-07-09 | 广东科龙电器股份有限公司 | 冰箱及其控制方法 |
JP2003207250A (ja) * | 2002-12-20 | 2003-07-25 | Matsushita Refrig Co Ltd | 冷蔵庫 |
JP2005016777A (ja) * | 2003-06-24 | 2005-01-20 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
JP2005188783A (ja) | 2003-12-24 | 2005-07-14 | Toshiba Corp | 冷蔵庫 |
JP2005214544A (ja) * | 2004-01-30 | 2005-08-11 | Toshiba Corp | 冷凍冷蔵庫 |
EP1564513A1 (en) | 2004-02-12 | 2005-08-17 | Whirlpool Corporation | A refrigerator with a variable speed compressor and a method for controlling variable cooling capacity thereof |
JP2006078036A (ja) * | 2004-09-08 | 2006-03-23 | Denso Corp | 冷房冷蔵用冷凍サイクル装置 |
-
2006
- 2006-05-15 JP JP2006135564A patent/JP5097361B2/ja active Active
-
2007
- 2007-04-10 US US12/227,067 patent/US20090235677A1/en not_active Abandoned
- 2007-04-10 EP EP07741317A patent/EP2019275A4/en not_active Withdrawn
- 2007-04-10 KR KR1020087027053A patent/KR101070639B1/ko not_active IP Right Cessation
- 2007-04-10 CN CN2007800172951A patent/CN101443611B/zh active Active
- 2007-04-10 WO PCT/JP2007/057881 patent/WO2007132605A1/ja active Application Filing
- 2007-04-25 TW TW96114633A patent/TWI391619B/zh active
-
2011
- 2011-10-26 US US13/281,693 patent/US9080805B2/en not_active Expired - Fee Related
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5888559A (ja) * | 1981-11-20 | 1983-05-26 | 三菱電機株式会社 | 冷却装置 |
JPH11304328A (ja) * | 1998-04-24 | 1999-11-05 | Toshiba Corp | 冷蔵庫の冷却運転制御装置 |
JP2000230766A (ja) * | 1999-02-09 | 2000-08-22 | Matsushita Refrig Co Ltd | 冷却サイクル及び冷蔵庫 |
JP2001133113A (ja) | 1999-11-01 | 2001-05-18 | Matsushita Refrig Co Ltd | 冷蔵庫 |
JP2005121341A (ja) * | 2003-10-20 | 2005-05-12 | Hoshizaki Electric Co Ltd | 冷却貯蔵庫 |
JP2005265267A (ja) * | 2004-03-18 | 2005-09-29 | Matsushita Electric Ind Co Ltd | 冷蔵庫 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2019275A4 * |
Also Published As
Publication number | Publication date |
---|---|
KR101070639B1 (ko) | 2011-10-07 |
CN101443611A (zh) | 2009-05-27 |
EP2019275A4 (en) | 2010-07-28 |
TW200801418A (en) | 2008-01-01 |
JP2007303796A (ja) | 2007-11-22 |
US20090235677A1 (en) | 2009-09-24 |
EP2019275A1 (en) | 2009-01-28 |
US9080805B2 (en) | 2015-07-14 |
US20120047932A1 (en) | 2012-03-01 |
JP5097361B2 (ja) | 2012-12-12 |
TWI391619B (zh) | 2013-04-01 |
CN101443611B (zh) | 2012-06-13 |
KR20080108604A (ko) | 2008-12-15 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
WO2007132605A1 (ja) | 冷却貯蔵庫及びその運転方法 | |
EP1243880B1 (en) | Refrigerator with a plurality of parallel refrigerant passages | |
EP2136166A1 (en) | Cooling storage building | |
WO2005038365A1 (ja) | 冷却貯蔵庫 | |
EP2124000A1 (en) | Cooling storage building and method of operating the same | |
JP4584107B2 (ja) | 冷却貯蔵庫 | |
KR20190049080A (ko) | 냉장고 및 그의 제어방법 | |
JP5624295B2 (ja) | 冷蔵庫 | |
JP2008286474A (ja) | 冷却貯蔵庫及びその運転方法 | |
JP2005121341A (ja) | 冷却貯蔵庫 | |
KR20190050080A (ko) | 냉장고 및 그의 제어방법 | |
JPH11148761A (ja) | 冷蔵庫 | |
KR102617277B1 (ko) | 냉장고 및 그의 제어방법 | |
KR102153056B1 (ko) | 냉장고 및 그 제어방법 | |
KR20210069360A (ko) | 냉장고 및 그의 제어방법 | |
KR20210069363A (ko) | 냉장고 및 그의 제어방법 | |
KR20160098783A (ko) | 냉장고 및 그 제어방법 | |
KR102589265B1 (ko) | 냉장고 및 그의 제어방법 | |
JP7351735B2 (ja) | 冷蔵庫 | |
KR102255294B1 (ko) | 냉장고 | |
KR101386474B1 (ko) | 냉장고의 냉각 장치 및 그 제어 방법 | |
JP2002267312A (ja) | 冷凍冷蔵庫 | |
JP7344651B2 (ja) | 冷蔵庫 | |
JP4286106B2 (ja) | 冷凍冷蔵庫 | |
KR20070072223A (ko) | 냉장고 및 냉장고의 제어 방법 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 07741317 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 1020087027053 Country of ref document: KR |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12227067 Country of ref document: US |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2007741317 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 200780017295.1 Country of ref document: CN |
|
NENP | Non-entry into the national phase |
Ref country code: DE |