WO2014002357A1 - 冷蔵庫 - Google Patents
冷蔵庫 Download PDFInfo
- Publication number
- WO2014002357A1 WO2014002357A1 PCT/JP2013/002881 JP2013002881W WO2014002357A1 WO 2014002357 A1 WO2014002357 A1 WO 2014002357A1 JP 2013002881 W JP2013002881 W JP 2013002881W WO 2014002357 A1 WO2014002357 A1 WO 2014002357A1
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- WO
- WIPO (PCT)
- Prior art keywords
- evaporator
- refrigeration
- defrosting operation
- space
- damper
- Prior art date
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Classifications
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- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
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- 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
- F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
- F25D21/06—Removing frost
- F25D21/08—Removing frost by electric heating
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- 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
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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- 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
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- 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
- F25B2600/025—Compressor control by controlling speed
- F25B2600/0251—Compressor control by controlling speed with on-off operation
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- 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
- F25B2600/11—Fan speed control
- F25B2600/112—Fan speed control of evaporator fans
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- 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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- 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
Definitions
- Embodiment of this invention is related with a refrigerator.
- a refrigeration damper and a refrigeration damper have been provided in a flow path for supplying air cooled by an evaporator to a refrigeration space and a flow path for supplying to a refrigeration space, respectively.
- a refrigerator that is provided with an evaporator fan that blows air to the space and controls the opening and closing of the refrigeration damper and the refrigeration damper and the rotation of the evaporator fan to cool the refrigeration space and the refrigeration space with one evaporator.
- a defrosting operation is performed in which a defrost heater provided near the evaporator is energized while the compressor is stopped. At that time, by rotating the evaporator fan and opening the refrigeration damper, the refrigeration space is humidified by supplying air containing a lot of moisture to the refrigeration space by defrosting the evaporator while defrosting the evaporator.
- the thing is proposed (for example, refer the following patent document 1).
- the movable part of the refrigeration damper since the movable part of the refrigeration damper has a large heat capacity and is cooled to the internal temperature of the refrigeration space, it is heated when the evaporator fan is rotated while the defrost heater is energized to humidify the refrigeration space. Highly humid air hits the moving parts of the refrigeration damper and is cooled and tends to condense. Since water (condensation water) adhering to the movable part of the refrigeration damper is exposed to cold air during the subsequent cooling operation of the refrigeration space, it freezes and may interfere with the operation of the refrigeration damper.
- an object of the present invention is to provide a refrigerator capable of performing defrosting of the evaporator and humidification of the refrigeration space while suppressing condensation occurring in the movable part of the refrigeration damper in the refrigerator that performs cooling with one evaporator.
- the refrigerator according to the embodiment is cooled by the refrigerator, the refrigerator space, the compressor, the evaporator supplied with the refrigerant discharged from the compressor, and cooling the refrigerator space and the refrigerator space, and the evaporator.
- a refrigeration damper for opening and closing a flow path for supplying the refrigeration space, a defrosting heater for heating frost attached to the evaporator, the compressor, the evaporator fan, the refrigeration damper, the refrigeration damper, and the A controller that controls the defrost heater, wherein the controller stops the compressor, opens the refrigeration damper, closes the refrigeration damper, drives the evaporator fan, and Small vessel Ku and also partially and executes the first defrosting operation for the energized state the defrost heater so as to maintain the following melting temperature of
- FIG. 1st Embodiment It is sectional drawing of the refrigerator which concerns on 1st Embodiment. It is a figure which shows the refrigerating cycle of the refrigerator shown in FIG. It is a block diagram which shows the electric constitution of the refrigerator shown in FIG. It is a time chart which shows control of the refrigerator shown in FIG. It is a flowchart which shows the defrost control of the refrigerator shown in FIG. It is a time chart which shows control of the refrigerator which concerns on 2nd Embodiment. It is a flowchart which shows the defrost control of the refrigerator which concerns on 2nd Embodiment.
- the refrigerator 10 includes a refrigerator main body 11 including a heat insulating box body filled with a foam heat insulating material between an outer box that forms an outer shell and an inner box that forms a storage space. .
- a storage space formed therein is partitioned into an upper refrigerated space 20 and a lower refrigerated space 40 by a heat insulating partition wall 12.
- the refrigerated space 20 is a space that is cooled to a refrigeration temperature (for example, 2 to 3 ° C.), and the inside thereof is further partitioned vertically by a partition plate 21.
- a refrigerated chamber 22 having a plurality of stages of mounting shelves is provided above the partition plate 21, and a vegetable chamber 24 in which a drawer-type storage container 23 is disposed is provided below the partition plate 21. .
- a freezing space 40 disposed below the vegetable room 24 is a space cooled to a freezing temperature (for example, ⁇ 18 ° C. or lower), and an ice making room equipped with a relatively small volume automatic ice making machine and a small freezing room 42. Are provided side by side, and a freezer compartment 43 is provided below the left and right.
- a freezing temperature for example, ⁇ 18 ° C. or lower
- an ice making room equipped with a relatively small volume automatic ice making machine and a small freezing room 42 are provided side by side, and a freezer compartment 43 is provided below the left and right.
- the opening of the refrigerator compartment 22 is closed by a refrigerator compartment door 25 pivotally supported by hinges provided on the upper and lower sides of the refrigerator main body 11.
- the openings of the vegetable room 24, the ice making room, the small freezer room 42 and the freezer room 43 are closed by pull-out doors 26, 46 and 47.
- the pair of left and right support frames fixed to the back side of each pull-out door 26, 46, 47 hold the storage containers 23, 44, 45, and are configured to be pulled out of the cabinet as the door is opened. Yes.
- evaporator 56 constituting a part of the refrigeration cycle 50 as shown in FIG. 2, and evaporation that blows air cooled by the evaporator 56 to the refrigeration space 20 and the refrigeration space 40.
- An evaporator chamber 30 that houses the evaporator fan 31 is disposed.
- the refrigeration cycle 50 includes a compressor 51 that discharges a high-temperature and high-pressure refrigerant gas, a condenser 52 that receives the refrigerant gas discharged from the compressor 51 and liquefies heat, and a capillary tube that decompresses the refrigerant from the condenser 52. 54 and an evaporator 56 connected to the downstream side of the capillary tube 54 by pipe connection.
- the refrigerant discharged from the compressor 51 is supplied to the evaporator 56 via the condenser 52 and the capillary tube 54 to lower the temperature of the evaporator 56.
- the evaporator 56 is, for example, a fin tube type evaporator in which a large number of strip-shaped fins are attached at predetermined intervals to a refrigerant pipe through which a refrigerant flowing from the capillary tube 54 flows.
- the outlet side of the refrigerant pipe is connected to the suction side of the compressor 51, whereby the refrigerant flowing through the evaporator 56 is taken into the compressor 51 again and circulates through the refrigeration cycle 50.
- An evaporator temperature sensor 62 for detecting the temperature of the evaporator 56 is provided in the vicinity of the outlet of the refrigerant pipe constituting the evaporator 56.
- a defrost heater 63 including a pipe heater in which an electric heater is sealed in a pipe is disposed on the outer peripheral surface of the evaporator 56. The defrost heater 63 melts and removes the frost attached to the evaporator 56 by energizing the electric heater at a predetermined timing to generate heat.
- the evaporator chamber 30 is connected to the refrigeration space 20 by a refrigeration duct 33 provided with a refrigeration damper 32, and is connected to the refrigeration space 40 by a refrigeration duct 36 provided with a refrigeration damper 35. ing.
- a refrigeration temperature sensor 27 for measuring the internal temperature TR of the refrigerated space 20 is provided on the back surface of the refrigerated chamber 22, and a freezer temperature sensor TF for measuring the internal temperature TF of the refrigerated space 40 is provided on the back surface of the freezer chamber 43.
- a freezing temperature sensor 48 is provided.
- a machine room 60 that houses a compressor 51 and a condenser 52 that constitute a part of the refrigeration cycle 50 is disposed at the lower back of the refrigerator body 11, and a controller 61 is provided at the upper back of the machine room 60. It has been.
- the control unit 61 receives signals input from various sensors such as a refrigeration temperature sensor 27, a freezing temperature sensor 48, and an evaporator temperature sensor 62, and a memory 64 including a nonvolatile recording medium such as an EEPROM. Based on the stored control program, the operations of the evaporator fan 31, the refrigeration damper 32, the refrigeration damper 35, the compressor 51, and the defrost heater 63 are controlled.
- the control unit 61 drives the compressor 51 and the evaporator fan 31 based on the internal temperatures TR and TF detected by the refrigeration temperature sensor 27 and the refrigeration temperature sensor 48, and the refrigeration.
- the control part 61 will melt and remove the frost adhering to the evaporator 56 by performing a defrost operation.
- the compressor 51 provided in the refrigeration cycle 50 is driven to lower the temperature of the evaporator 56, and the refrigeration damper 32 is opened and the refrigeration is performed.
- the evaporator fan 31 is driven with the damper 35 closed (step S1).
- the air cooled by the evaporator 56 is blown into the refrigerated space 20 through the refrigeration duct 33 to cool the inside of the refrigerated space 20.
- the air that has flowed in the refrigerated space 20 is taken into the evaporator chamber 30 from the suction port provided on the back surface of the vegetable chamber 24 that forms the lower part of the refrigerated space 20, and is again cooled by exchanging heat with the evaporator 56.
- Step S3 the compressor 51 provided in the refrigeration cycle 50 is driven to lower the temperature of the evaporator 56, the refrigeration damper 32 is closed, and the evaporator fan 31 is driven with the refrigeration damper 35 opened.
- the air cooled by the evaporator 56 is blown into the refrigeration space 40 through the refrigeration duct 36 to cool the inside of the refrigeration space 40.
- the air that flows in the freezing space 40 is taken into the evaporator chamber 30 from the suction port provided on the back surface of the freezing chamber 43 that forms the lower part of the freezing space 40, and is heat-exchanged with the evaporator 56 again to be cooled.
- Step S1 the control unit 61 executes the first defrosting operation (step S6), and then executes the second defrosting operation (step S6). S9).
- the control unit 61 stops the compressor 51, opens the refrigeration damper 32, closes the refrigeration damper 35, rotates the evaporator fan 31, and sets the defrost heater 63 to the energized state. To do. At that time, the controller 61 adjusts the output so that at least a part of the frost adhering to the evaporator 56 is maintained at a temperature equal to or lower than the frost melting temperature (that is, 0 ° C.) and the frost remains in the evaporator 56. The frost heater 63 is energized.
- the defrost heater 63 When the defrost heater 63 is energized and the frost attached to the evaporator 56 is heated, the temperature of the frost gradually rises, but the frost is melted because latent heat is required when the phase changes from frost (ice) to water. When the temperature (0 ° C.) is reached, the temperature is maintained until it is completely dissolved.
- the defrost heater 63 is disposed on the outer peripheral surface of the evaporator 56 and heats the evaporator 56 from the outside, the defrost heater 63 is removed when the temperature detected by the evaporator temperature sensor 62 reaches the melting temperature of frost. Although the outer frost facing the frost heater 63 is melted to form water, the frost on the inner side (evaporator side) is still frozen and the frost remains in the evaporator 56.
- control unit 61 energizes the defrosting heater 63 while adjusting the output so that the temperature Te detected by the evaporator temperature sensor 62 does not exceed the frost melting temperature. .
- the defrost heater 63 is energized so that at least a part of the evaporator 56 maintains the frost melting temperature or lower, the refrigeration damper 32 is opened, and the evaporator fan 31 is opened. , The air in the refrigerated space 20 is taken into the evaporator chamber 30 and blown to the evaporator 56.
- step S7 when the temperature Te of the evaporator 56 detected by the evaporator temperature sensor 62 reaches the frost melting temperature Tm (step S7), the control unit 61 ends the first defrosting operation and performs the second defrosting operation. Operation is executed (step S9).
- the control unit 61 changes the defrosting heater 63 from the energized state to the non-energized state (step S9). That is, in the second defrosting operation, the control unit 61 stops the compressor 51, opens the refrigeration damper 32, closes the refrigeration damper 35, drives the evaporator fan 31, and drives the defrost heater 63. Turn off the power.
- the evaporator fan 31 is driven while the refrigeration damper 32 is in an open state, and the air in the refrigeration space 20 is taken into the evaporator chamber 30 and blown to the evaporator 56, whereby the first defrosting operation is performed.
- the moisture of the frost thawed in is vaporized and blown into the refrigerated space 20 together with the air in the evaporator chamber 30.
- moisture-containing air is supplied to the refrigerated space 20 to humidify the inside of the refrigerated space 20.
- the control unit 61 performs the second defrosting operation. Exit.
- Step S12 After cooling the refrigeration space 40 until the internal temperature TF reaches a predetermined temperature TFoff or less (step S13), the refrigeration cooling operation is started (step S14), and the internal temperature TR is predetermined.
- the refrigerated space 20 is cooled until the temperature TRoff or less is reached (step S15).
- the compressor 51 is stopped, the refrigeration damper 32 is opened, the refrigeration damper 35 is closed, the evaporator fan 31 is driven, and at least a part of the evaporator 56 is
- the defrosting heater 63 is energized so as to maintain the frost melting temperature or lower, and the defrosting heater 63 melts the frost adhering to the evaporator 56 in the refrigerated space 20. Is taken into the evaporator chamber 30 and blown to the evaporator 56.
- the air taken into the evaporator chamber 30 from the refrigerated space 20 evaporates the moisture of the frost melted by the defrost heater 63 and is cooled by the cold heat of the frost remaining in the evaporator 56 and passes through the refrigeration duct 33. Then, the air is sent to the refrigerated space 20.
- the defrosting heater 63 is turned off, the refrigeration damper 32 is opened, and the second defrosting operation for driving the evaporator fan 31 is performed. Therefore, in the frost moisture melted by the heat of the defrost heater 63 in the first defrosting operation, the moisture remaining in the evaporator 56 without being completely vaporized is vaporized during the second defrosting operation to be stored in the refrigerated space 20.
- the refrigerated space 20 can be humidified while the evaporator 56 is defrosted.
- the first defrosting operation is terminated and the second defrosting operation is completed.
- the frost melting temperature is reached.
- the frost still remains in the evaporator 56 and the transition from the first defrosting operation to the second defrosting operation may be performed.
- the inside of the refrigerated space 20 can be humidified without causing condensation on the movable part of the refrigeration damper 32.
- the second defrosting operation is terminated when the temperature of the evaporator 56 detected by the evaporator temperature sensor 62 reaches the frost melting temperature during the execution of the second defrosting operation, the second defrosting operation is terminated.
- the air having a temperature higher than 20 does not flow through the refrigeration duct 33 and hit the movable part of the refrigeration damper 32 to cause condensation, and the operation of the refrigeration damper 32 is not hindered by freezing of the condensed water adhering to the movable part.
- the controller 61 detects the temperature Te of the evaporator 56 and the operation time of the first defrosting operation, and the temperature Te of the evaporator 56 reaches the melting temperature Tm of frost.
- the first defrosting operation is ended when the operation time of the first defrosting operation has passed the predetermined time T1.
- the present invention is not limited to this, and the outer frost facing the defrost heater 63 is melted to form water, but the frost is not completely melted and remains in the evaporator 56 while remaining in the evaporator 56. What is necessary is just to complete
- control unit 61 continues the first defrosting operation until the temperature Te of the evaporator 56 reaches the frost melting temperature Tm without detecting the operation time of the first defrosting operation, or the evaporator 56
- the first defrosting operation may be continued until the operation time of the first defrosting operation reaches the predetermined time T1 without detecting the melting temperature Tm of the frost.
- the first defrosting operation is executed as the defrosting operation when the predetermined defrosting start condition is satisfied while alternately performing the refrigeration cooling operation and the refrigeration cooling operation, that is, The case where the refrigeration cooling operation or the refrigeration cooling operation is executed immediately before the first defrosting operation and then the first defrosting operation is started has been described.
- the present invention is not limited to this.
- the simultaneous cooling operation for driving the evaporator fan 31 with the refrigeration damper 32 and the refrigeration damper 35 being opened is performed while the temperature of the evaporator 56 is lowered by driving the compressor 51 immediately before the first defrosting operation. May be.
- the temperature of the evaporator 56 at the start of the first defrosting operation is lowered. Therefore, the cooling capacity of the refrigerated space 20 in the first defrosting operation can be increased.
- the refrigerated space 20 and the freezing space 40 are cooled before the first defrosting operation. Therefore, even if the temperature of the refrigerated space 20 or the freezing space 40 rises during the execution of the first defrosting operation and the second defrosting operation, the temperature is unlikely to become higher than the set temperature.
- control unit 61 performs the cooling operation immediately before the first defrosting operation when the refrigeration cooling operation, the refrigeration cooling operation, and the simultaneous cooling operation are shifted to the first defrosting operation. After the refrigeration damper 32 is opened, the compressor 51 being driven is stopped and the first defrosting operation is performed.
- the control unit 61 stops the compressor 51,
- the first defrosting operation is executed following the refrigeration cooling operation.
- the compressor 51 does not stop immediately upon receiving a signal to stop from the control unit 61, but operates at a low output for a certain time to circulate the internal lubricating oil. I do.
- the controller 61 opens the refrigeration damper 32 in the closed state and continues driving the evaporator fan 31.
- the control unit 61 energizes the defrost heater 63 while maintaining the open state of the refrigeration damper 32 and the drive of the evaporator fan 31 to perform the first defrost operation. Execute.
- the temperature of the evaporator 56 can be raised during after-idling by introducing air in the refrigerated space 20 having a temperature higher than that of the evaporator 56 into the evaporator chamber 30.
- the execution time of the first defrosting operation can be shortened.
- the refrigeration cooling operation is shifted to the first defrosting operation.
- the refrigeration cooling operation is performed.
- the air in the refrigerated space 20 may be introduced into the evaporator chamber 30, and in that case, it is preferable to close the refrigeration damper 35 during after-idling.
- the first defrosting operation is executed as the defrosting operation and then the second defrosting operation is executed.
- the first defrosting operation is executed.
- a 3rd defrost operation is performed before, a 1st defrost operation and a 2nd defrost operation are performed after that, and a 4th defrost operation is performed after completion
- the refrigeration cooling operation is performed based on the internal temperatures TR and TF detected by the refrigeration temperature sensor 27 and the refrigeration temperature sensor 48. And the refrigeration cooling operation are alternately performed (steps S21 to S24). Then, when a predetermined defrosting start condition is satisfied while switching between the refrigeration cooling operation and the refrigeration cooling operation alternately (step S25), the third defrosting operation is started (step S26).
- the controller 61 stops the compressor 51, opens the refrigeration damper 32, closes the refrigeration damper 35, drives the evaporator fan 31, and deenergizes the defrost heater 63. State.
- the air in the refrigerated space 20 introduced into the evaporator chamber 30 is cooled by exchanging heat with the evaporator 56 to which frost is adhered, and then again in the refrigerated space 20. Returned to As a result, the refrigerated space 20 is cooled and the temperature of the evaporator 56 is raised.
- step S35 the first defrosting operation and the second defrosting operation (steps S32 to S34) are executed, as in the first embodiment.
- a fourth defrosting operation is executed (step S35).
- the control unit 61 stops the compressor 51, closes the refrigeration damper 32 and the freezing damper 35, stops the evaporator fan 31, and turns on the defrosting heater 63.
- the control unit 61 starts the refrigeration cooling operation (step S38), cools the refrigeration space 40 until the internal temperature TF reaches a predetermined temperature TFoff or less (step S39), and then performs refrigeration cooling.
- the operation is started (step S40), and the refrigerated space 20 is cooled until the internal temperature TR reaches a predetermined temperature TRoff or less (step S41).
- the inside of the refrigerated space 20 can be cooled while suppressing power consumption by using the frost adhering to the evaporator 56 or the cold heat of the refrigerant remaining in the evaporator 56.
- the execution time of the first defrosting operation and the fourth defrosting operation in which the temperature of the evaporator 56 is raised and the defrosting heater 63 is energized can be shortened.
- the frost adhering to the evaporator 56 can be completely melted and removed.
- the cooling operation performed immediately before the third defrosting operation may be any of the refrigeration cooling operation, the refrigeration cooling operation, and the simultaneous cooling operation, but immediately before the third defrosting operation. It is preferable to execute the refrigeration cooling operation and shift to the third defrosting operation after completion of the refrigeration cooling operation. Since the temperature of the evaporator 56 at the start of the third defrosting operation can be lowered by shifting to the third defrosting operation after the end of the refrigeration cooling operation, the cooling capacity of the refrigerated space 20 in the third defrosting operation. Can be increased.
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- 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)
- Defrosting Systems (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
Description
以下、図面に基づき本発明の第1実施形態について説明する。
次に、第1実施形態の変更例について説明する。
次に、第2実施形態について図6及び図7を参照して説明する。
20…冷蔵空間 21…仕切板 22…冷蔵室
23…収納容器 24…野菜室 25…冷蔵室扉
27…冷蔵温度センサ 30…蒸発器室 31…蒸発器ファン
32…冷蔵ダンパ 33…冷蔵ダクト 35…冷凍ダンパ
36…冷凍ダクト 40…冷凍空間 42…小型冷凍室
43…冷凍室 48…冷凍温度センサ 50…冷凍サイクル
51…圧縮機 52…凝縮器 54…キャピラリーチューブ
56…蒸発器 60…機械室 61…制御部
62…蒸発器温度センサ 63…除霜ヒータ 64…メモリ
Claims (5)
- 冷蔵空間と、冷凍空間と、圧縮機と、前記圧縮機から吐出された冷媒が供給され前記冷蔵空間及び前記冷凍空間へ供給する空気を冷却する蒸発器と、前記蒸発器で冷却された空気を前記冷蔵空間及び前記冷凍空間に送風する蒸発器ファンと、前記蒸発器で冷却された空気を前記冷蔵空間に供給する流路を開閉する冷蔵ダンパと、前記蒸発器で冷却された空気を前記冷凍空間に供給する流路を開閉する冷凍ダンパと、前記蒸発器に付着した霜を加熱する除霜ヒータと、前記圧縮機、前記蒸発器ファン、前記冷蔵ダンパ、前記冷凍ダンパ、及び前記除霜ヒータを制御する制御部とを備え、
前記制御部が、前記圧縮機を停止し、前記冷蔵ダンパを開状態とし、前記冷凍ダンパを閉状態とし、前記蒸発器ファンを駆動し、前記蒸発器の少なくとも一部が霜の融解温度以下を維持するように前記除霜ヒータを通電状態とする第1除霜運転を実行することを特徴とする冷蔵庫。 - 前記制御部は、前記第1除霜運転を実行した後、前記圧縮機を停止し、前記冷蔵ダンパを開状態とし、前記冷凍ダンパを閉状態とし、前記蒸発器ファンを駆動し、前記除霜ヒータを非通電状態とする第2除霜運転を実行することを特徴とする請求項1に記載の冷蔵庫。
- 前記制御部は、前記第1除霜運転の実行中に前記蒸発器の温度が霜の融解温度に達すると、前記第1除霜運転を終了して前記第2除霜運転を実行することを特徴とする請求項2に記載の冷蔵庫。
- 前記制御部は、前記第2除霜運転の実行中に前記蒸発器の温度が霜の融解温度に達すると、前記第2除霜運転を終了することを特徴とする請求項2又は3に記載の冷蔵庫。
- 前記制御部は、前記冷蔵ダンパを開状態としてから駆動中の前記圧縮機を停止して前記第1除霜運転を実行することを特徴とする請求項1~4のいずれか1項に記載の冷蔵庫。
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CN201380034159.9A CN104412054B (zh) | 2012-06-29 | 2013-04-30 | 冰箱 |
MYPI2014703903A MY184728A (en) | 2012-06-29 | 2013-04-30 | Refrigerator |
KR1020157000120A KR101668302B1 (ko) | 2012-06-29 | 2013-04-30 | 냉장고 |
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JP2012147253A JP5854937B2 (ja) | 2012-06-29 | 2012-06-29 | 冷蔵庫 |
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WO2014002357A1 true WO2014002357A1 (ja) | 2014-01-03 |
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PCT/JP2013/002881 WO2014002357A1 (ja) | 2012-06-29 | 2013-04-30 | 冷蔵庫 |
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JP (1) | JP5854937B2 (ja) |
KR (1) | KR101668302B1 (ja) |
CN (1) | CN104412054B (ja) |
MY (1) | MY184728A (ja) |
TW (1) | TWI529359B (ja) |
WO (1) | WO2014002357A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110375509A (zh) * | 2018-04-13 | 2019-10-25 | 青岛海尔股份有限公司 | 具有滑轨仓的冰箱 |
CN112484377A (zh) * | 2020-11-23 | 2021-03-12 | 珠海格力电器股份有限公司 | 一种冰箱风门的防冻结控制方法、装置、控制器及冰箱 |
Families Citing this family (5)
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CN110094918B (zh) * | 2018-01-31 | 2021-10-26 | 日立环球生活方案株式会社 | 冰箱 |
JP2020094712A (ja) * | 2018-12-10 | 2020-06-18 | 東芝ライフスタイル株式会社 | 冷蔵庫 |
CN110440502B (zh) * | 2019-08-28 | 2024-02-06 | 长虹美菱股份有限公司 | 一种风冷冰箱化霜增湿装置及其控制方法 |
CN112944771B (zh) * | 2019-11-26 | 2023-09-29 | 青岛海尔特种电冰柜有限公司 | 风冷设备的控制方法及风冷设备 |
CN116499173A (zh) * | 2022-01-19 | 2023-07-28 | 青岛海尔电冰箱有限公司 | 冷藏冷冻装置及其控制方法 |
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- 2012-06-29 JP JP2012147253A patent/JP5854937B2/ja active Active
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- 2013-04-30 CN CN201380034159.9A patent/CN104412054B/zh active Active
- 2013-04-30 MY MYPI2014703903A patent/MY184728A/en unknown
- 2013-04-30 KR KR1020157000120A patent/KR101668302B1/ko active IP Right Grant
- 2013-04-30 WO PCT/JP2013/002881 patent/WO2014002357A1/ja active Application Filing
- 2013-05-22 TW TW102117972A patent/TWI529359B/zh not_active IP Right Cessation
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JPH1082571A (ja) * | 1996-09-09 | 1998-03-31 | Toshiba Corp | 冷蔵庫 |
JP2004101005A (ja) * | 2002-09-06 | 2004-04-02 | Mitsubishi Electric Corp | 冷蔵庫、冷蔵庫の運転方法 |
JP2005037010A (ja) * | 2003-07-16 | 2005-02-10 | Mitsubishi Electric Corp | 冷蔵庫、冷蔵庫の運転方法 |
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CN110375509A (zh) * | 2018-04-13 | 2019-10-25 | 青岛海尔股份有限公司 | 具有滑轨仓的冰箱 |
CN112484377A (zh) * | 2020-11-23 | 2021-03-12 | 珠海格力电器股份有限公司 | 一种冰箱风门的防冻结控制方法、装置、控制器及冰箱 |
CN112484377B (zh) * | 2020-11-23 | 2021-07-23 | 珠海格力电器股份有限公司 | 一种冰箱风门的防冻结控制方法、装置、控制器及冰箱 |
Also Published As
Publication number | Publication date |
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CN104412054A (zh) | 2015-03-11 |
JP5854937B2 (ja) | 2016-02-09 |
JP2014009893A (ja) | 2014-01-20 |
KR101668302B1 (ko) | 2016-10-24 |
TW201400776A (zh) | 2014-01-01 |
TWI529359B (zh) | 2016-04-11 |
KR20150029676A (ko) | 2015-03-18 |
MY184728A (en) | 2021-04-20 |
CN104412054B (zh) | 2016-08-10 |
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