CN108369052A - Refrigerator - Google Patents

Refrigerator Download PDF

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Publication number
CN108369052A
CN108369052A CN201680073477.XA CN201680073477A CN108369052A CN 108369052 A CN108369052 A CN 108369052A CN 201680073477 A CN201680073477 A CN 201680073477A CN 108369052 A CN108369052 A CN 108369052A
Authority
CN
China
Prior art keywords
evaporator
temperature
air
refrigerator
heater
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
CN201680073477.XA
Other languages
Chinese (zh)
Other versions
CN108369052B (en
Inventor
岩本智晴
清水和生
森爱子
瀬尾达也
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Samsung Electronics Co Ltd
Original Assignee
Samsung Electronics Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from KR1020160095021A external-priority patent/KR102641371B1/en
Application filed by Samsung Electronics Co Ltd filed Critical Samsung Electronics Co Ltd
Priority claimed from PCT/KR2016/014651 external-priority patent/WO2017105079A1/en
Publication of CN108369052A publication Critical patent/CN108369052A/en
Application granted granted Critical
Publication of CN108369052B publication Critical patent/CN108369052B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F25D21/08—Removing frost by electric heating
    • 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
    • F25D21/002—Defroster control
    • 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
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • 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
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/062—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators
    • F25D17/065—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation in household refrigerators with 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
    • F25B2400/00—General features or devices for refrigeration machines, plants or systems, combined heating and refrigeration systems or heat-pump systems, i.e. not limited to a particular subgroup of F25B
    • F25B2400/23—Separators
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/11—Sensor to detect if defrost is necessary
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2103—Temperatures near a heat exchanger
    • 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
    • F25B2700/00—Sensing or detecting of parameters; Sensors therefor
    • F25B2700/21—Temperatures
    • F25B2700/2117—Temperatures of an evaporator
    • 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
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/063—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation with air guides
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/067—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by air ducts
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0684—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans the fans allowing rotation in reverse direction
    • 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
    • F25D2600/00—Control issues
    • F25D2600/02—Timing
    • 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
    • F25D2600/00—Control issues
    • F25D2600/04—Controlling heat transfer

Abstract

A kind of refrigerator, including：Storeroom；It is configured to the evaporator of cooling storeroom；And air duct, the flow of cold air generated by evaporator pass through the air duct.Air duct includes：Air blower is configured to blow cold air to storeroom；With catching portion, by defrosting, the warm air that operation generates rests in the catching portion so that the warm air generated by defrosting operation is prevented to be introduced into the inner space of refrigerator by air duct.According to the disclosure, refrigerator includes catching portion, and the warm air generated by defrosting operation is by catching in the catching portion so that the warm air by defrosting operation generation can be prevented to be introduced into the inner space of refrigerator by air duct.

Description

Refrigerator
Technical field
The embodiment of the present invention is related to a kind of refrigerator, and relates more specifically to a kind of internal structure for using refrigerator The technology for improving the efficiency of refrigerator and efficiently being defrosted to refrigerator using Defrost heater and air blower.
Background technology
In general, refrigerator food or beverage (hereinafter referred to as " storage article ") are stored in for a long time using cold air it is fresh State.Storeroom is usually divided into for the refrigerating chamber of storage storage article at a temperature of higher than zero degree and for low by refrigerator The freezing chamber of the storage article stored at a temperature of zero degree.
Cooling cycle is repeatedly carried out in refrigerator, for executing compression → condensation → expansion → evaporation of refrigerant successively, The inner space of storeroom is allow to be maintained at target temperature.In other words, refrigerator will be by being arranged in each storeroom Evaporator and the cold air of cooling is supplied to each storeroom so that each storeroom may remain in target temperature.
Evaporator evaporated refrigerant is to cool down storeroom.During refrigerant evaporates, frost is formed at evaporator.In refrigerator Place forms Defrost heater, to remove the frost formed on evaporator.
Heater is installed to evaporator by the representative art for removing the frost formed at evaporator so that is formed in Frost at evaporator can be melted and removed by heater.
More specifically, as can be seen that heater and temperature sensor such as from Japanese Patent Laid-Open No.2010-216680 It is mounted to each evaporator so that can be by the temperature control heater that is detected by corresponding evaporator temperature sensor Operation.
It is used after driving heater is to start defrosting according to the technology of Japanese Patent Laid-Open No.2010-216680 The temperature sensor of evaporator measures the temperature of evaporator so that the operating time of heater can reduce.In more detail, may be used To control the pattern (that is, driving and stopping of heater) of heater according to the detection temperature of evaporator temperature sensor.
Invention content
Technical problem
However, according to the technology of Japanese Patent Laid-Open No.2010-216680, due to being added by using preassigned pattern control Hot device realizes defrosting process, therefore consumes the time completed needed for defrosting so that exists during defrosting process in refrigerator The high likelihood of the temperature in portion space increased.Accordingly, there exist the rotten high likelihoods of the food being stored in refrigerator or beverage.
In addition, if completed later in defrosting operation, there are remaining frosts, or as bloom is focusing only on the inside of refrigerator At the specific part in space, then need the output of heater being maintained at predeterminated level or higher level remaining to remove Frost.For this purpose, being designed to control the output of heater according to the conventional refrigerator of the relevant technologies.
Therefore, although defrosting process must be continuously performed, conventional refrigerator inevitably stops defrosting process so that uses It may deteriorate in the heater output level of this defrosting.
Technical solution
Therefore, an aspect of this disclosure is to provide a kind of refrigerator, wherein the internal structure for changing refrigerator makes Defrosting operation is more efficiently carried out with multiple Defrost heaters and multiple air blowers, and prevents from increasing by reducing defrosting time Add the technology of the temperature of interior refrigerator space.
Advantageous effect
According to the disclosure, refrigerator includes catching portion (trap part), and by defrosting, the warm air that operation generates is existed by catching In the catching portion so that the warm air generated by defrosting operation can be prevented to be introduced into the inner space of refrigerator by air duct In.
Description of the drawings
Fig. 1 is the concept map for the cooling cycle for showing refrigerator according to an embodiment of the present disclosure.
Fig. 2 is the arrangement for showing evaporator according to an embodiment of the present disclosure, upper portion heater and lower heater Concept map.
Fig. 3 is shown according to first embodiment of the present disclosure for being controlled according to temperature change during the operation that defrosts The concept map of flow channel switching valve and the method for heater.
Fig. 4 is shown according to second embodiment of the present disclosure for being controlled according to temperature change during the operation that defrosts The concept map of flow channel switching valve and the method for heater.
Fig. 5 is shown according to second embodiment of the present disclosure for being controlled according to temperature change during the operation that defrosts The concept map of flow channel switching valve and the method for heater.
Fig. 6 is the flow chart for showing the method for controlling defrosting operation according to third embodiment of the present disclosure.
Fig. 7 is shown according to third embodiment of the present disclosure for being controlled according to temperature change during the operation that defrosts The concept map of flow channel switching valve and the method for heater.
Fig. 8 is the concept map for the appearance for showing the air duct according to fourth embodiment of the present disclosure.
Fig. 9 is the concept map for installing catching portion in the air passageway shown according to the fourth embodiment of the present disclosure.
Figure 10 is the concept map for showing to be flowed according to the air of fourth embodiment of the present disclosure.
Figure 11 is the method for showing the corresponding constituent element for controlling refrigerator according to fifth embodiment of the present disclosure Concept map.
Figure 12 is the concept map for the cooling cycle for showing the refrigerator according to the sixth embodiment of the present disclosure.
Figure 13 is the method for showing the corresponding constituent element for controlling refrigerator according to sixth embodiment of the present disclosure Concept map.
Figure 14 is the concept map of the cooling cycle for the refrigerator for showing the variation example according to the sixth embodiment of the present disclosure.
Specific implementation mode
Now with detailed reference to embodiment of the disclosure, its example is shown in the drawings, wherein identical reference numeral begins Identical element is indicated eventually.
Term used herein is only used for description specific embodiment, it is not intended to the limitation present invention.Unless upper and lower It is otherwise noted in text, otherwise odd number expression may include plural number expression.
In this application, term " comprising " or " having " are used to indicate the feature, number, step for being present in this specification description Suddenly, operation, component, part or combinations thereof, and other one or more features, number, step, operation, component, part or group The presence or addition of conjunction is not precluded within outer.
In the description of the present invention, various parts can be described using term " first " and " second ", but component is not It is limited by term.These terms can be used for distinguishing a component with another component.For example, not departing from the present invention Range in the case of, the first component can be referred to as second component, and second component can be referred to as the first component.Term " and/ Or " may include any one of the combination of multiple projects or multiple projects.
The feature and various embodiments of the problem of the relevant technologies explained below and the disclosure.
According to the technology for removing the frost formed at evaporator, heater and evaporator temperature sensor are mounted to Each evaporator so that the on/off operation of heater can be according to the temperature detected by corresponding evaporator temperature sensor To control.
According to the relevant technologies, as the temperature detected by evaporator temperature sensor during defrosting process gradually rises The operating time of height, heater gradually decreases.In more detail, it is controlled according to the temperature detected by evaporator temperature sensor The pattern (that is, starting and stopping of heater) of heater.
However, according to the relevant technologies, heater is controlled according to preassigned pattern and completes the required time lengthening that defrosts, is made It is very high to obtain the increased possibility of internal temperature of refrigerator during defrosting process.Therefore, it is stored in the food spoilage in refrigerator Possibility is very high.
In addition, if completed later in defrosting operation, there are remaining frosts, or as bloom is focusing only on the inside of refrigerator At the specific part in space, then need the output of heater being maintained at predeterminated level or higher level remaining to remove Frost.However, since conventional refrigerator according to prior art controls using AD HOC the output of heater, although needing continuously to hold Row defrosting process, but the process that defrosts still is interrupted so that necessary heater output may be reduced inevitably.
Conventional refrigerator according to another the relevant technologies includes the refrigerating evaporator and refrigeration evaporator being connected in series with, for adding First Defrost heater of hot refrigerating evaporator and the second Defrost heater for heating refrigeration evaporator.In above-mentioned routine In refrigerator, refrigerating evaporator is usually located above refrigeration evaporator, and each Defrost heater is located at below each evaporator.
However, according to above structure, refrigerating evaporator is located at the top of refrigeration evaporator.In order to use refrigerating evaporator to hold The whole defrosting of row, it is necessary to the first Defrost heater of Continuous Drive, while the heat generated from the first Defrost heater is in frozen steamed Hair device is communicated up upward so that the internal temperature of freezing chamber inevitably increases.
Therefore, the various embodiments of the disclosure are intended to provide a kind of refrigerator, and which substantially eliminates due to the relevant technologies One or more problems caused by limitation and disadvantage.Embodiment of the disclosure can more efficiently carry out defrosting process, to Prevent the internal temperature of freezing chamber from increasing.Description that hereinafter reference will be made to the drawings is according to the structure and features of the refrigerator of the disclosure.
Referring to Fig.1, may include by compressor 2, condenser 3, refrigeration evaporator 4 according to the refrigerator of one embodiment 100 The cooling cycle formed with refrigerating evaporator 5.
The first capillary 6 as pressure reducer can be located at the top for the flow channel for being connected to refrigerating evaporator 5.In addition, Refrigeration evaporator 4 can be in branch flow paths of the installation settings between condenser 3 and the first capillary 6, and as decompression Second capillary 7 of device can be arranged between corresponding branch point and refrigeration evaporator 4.
The low portion for being connected to the flow channel of refrigeration evaporator 4 may be coupled to setting in the first capillary 6 and cold Freeze the flow channel between evaporator 5.
Switch for the flow channel of changing flow direction refrigeration evaporator 4 and the supply status of the refrigerant of refrigerating evaporator 5 Valve 8 is arranged at branch point.It may be implemented as the switching valve of such as triple valve according to the flow channel switching valve 8 of the disclosure.
Flow channel switching valve 8 may include the port for being configured as controlling whether mobile refrigerant, and may include Port for switching flowing of the refrigerant to condenser, the port for switching flowing of the refrigerant to refrigeration evaporator 4, and Port for switching flowing of the refrigerant to refrigerating evaporator 5.In addition, flow channel switching valve 8 can be controlled by controller C System.
Flow channel switching valve 8 can be controlled by controller C under the conditions of following three.In the first condition, it flows Dynamic channel switching valve 8 can allow refrigerant to be flowed in 5 the two of refrigeration evaporator 4 and refrigerating evaporator.Under a second condition, Flow channel switching valve 8 can prevent refrigerant from flowing to refrigeration evaporator 4, and refrigerant can be allowed to only flow into frozen steamed Send out device 5.Under third condition, flow channel switching valve 8 can prevent refrigerant from flowing to refrigerating evaporator 5 and refrigeration evaporator Both 4.
In addition, as shown in Fig. 2, for remove the formation of each evaporator 4 and 5 each of place white multiple heaters 91, 92 can be installed to refrigeration evaporator 4 and refrigerating evaporator 5.In more detail, upper portion heater 91 and lower heater 92 can be with It is installed to refrigerating evaporator 5.In addition, upper portion heater 91 and lower heater 92 can be controlled by controller C.
Upper portion heater 91 can be arranged according to the spacing of the fin 5F of refrigerating evaporator 5.In more detail, upper portion heater 91 can be arranged with the orientation different from the arranged direction of spacing of fin.In addition, the top portion of the spacing of fin of refrigerating evaporator 5 Divide width small, and the width of the low portion of the spacing of fin of refrigerating evaporator 5 is big so that upper portion heater 91 can be with water Flat winding mode arrangement so that the upper part width of upper portion heater 91 is big, and the low portion width of upper portion heater 91 is small.
In addition, lower heater 92 can be arranged in 91 lower section of upper portion heater of refrigerating evaporator 5.In more detail, under Portion's heater 92 can arrange along the bottom surface of refrigerating evaporator 5, and can be along mounted on 5 lower section of refrigerating evaporator Drain the bottom surface arrangement of fan (drain fan).
The evaporator temperature sensor 10 of the temperature of outer surface for measuring corresponding refrigerating evaporator 5 can be installed to cold Freeze evaporator 5.Evaporator temperature sensor 10 can be installed to the coolant conduits of refrigerating evaporator 5.The evaporator temperature measured Degree can be transmitted to controller C.
Hereinafter with reference to Fig. 3 descriptions according to the operating principle of another refrigerant 100 of one embodiment.
If cryogenic temperature region (that is, freezing chamber) is cooled according to general cooling down operation, controller C can open flowing The freezing chamber port of channel switching valve 8 and the refrigerating chamber port that flow channel switching valve 8 can be closed, to allow refrigerant cold Freeze in evaporator 5 and flows.
On the contrary, if refrigerated storage temperature region (that is, refrigerating chamber) is cooled, controller C can open flow channel switching The refrigerating chamber port of valve 8, and the freezing chamber port of flow channel switching valve 8 can be closed, to allow refrigerant refrigerating It is flowed in evaporator 4.
If the operation mode of refrigerator is switched to defrosting mode from general refrigerating mode, it is logical that controller C can open flowing The refrigerating chamber port of road switching valve 8.In this case, although on or off is played with can not having any problems in refrigerating chamber port It closes, but it is more desirable that opens the pressure difference between suction part and discharge part of the refrigerating chamber port to remove compressor 2.
In addition, when controller C determines the temperature D measured by evaporator temperature sensor 10 and predetermined defrosting cranking temperature When (for example, -10 DEG C) are identical, the above-mentioned switching to defrosting mode can be started.
In addition, when operation mode is switched to defrosting mode, controller C can control upper portion heater 91 output and under The output of portion's heater 92.
In more detail, the output level of upper portion heater 91 and the output level of lower heater 92 maximally increase to 100%, quickly to remove the frost for being attached to evaporator so that being attached to the frost of refrigerating evaporator 5 can be melted and remove.
After defrosting mode starts, if the temperature measured by temperature sensor 10 reaches the first temperature (T1), then this Mean that the variation of latent heat is completed so that the freezing chamber port of flow channel switching valve 8 is turned off to prevent refrigerant from flowing to Refrigerating evaporator 5.In addition, controller C can control the output level of upper portion heater 91 and lower heater 92 simultaneously.
In general, the first temperature, which can refer to latent heat variation, terminates present temperature.Although for the ease of description, according to this public affairs The first temperature opened can be in the range of 0 DEG C to 1 DEG C, but the scope of the present disclosure or spirit are without being limited thereto.
Controller C can control the output of the output and lower heater 92 of upper portion heater 91 simultaneously, or can be Different time points individually or independently controls the output of the output and lower heater 92 of upper portion heater 91.
Later, if the temperature measured by evaporator temperature sensor 10 reaches second temperature (T2), then controller C can be with It determines the completion of defrosting process and the output of upper portion heater 91 and lower heater 92 can be stopped.
In general, second temperature can refer to the temperature for not re-forming frost at evaporator.Although for the ease of description, according to this Disclosed second temperature can be in the range of 8 DEG C to 12 DEG C, but the scope of the present disclosure or spirit are without being limited thereto.
If the process of defrosting is completed, controller C can restart common cooling down operation.
It, can also be based on being detected by evaporating temperature sensor 10 in the above-mentioned refrigerator 100 according to first embodiment Temperature switches refrigerant supply state by flow channel switching valve 8, meanwhile, the output of upper portion heater 91 and lower part heating The output of device 92 can be controlled stepwise.As a result, it is possible to reduce defrosting and can prevent internal temperature of refrigerator at the operating time Raising.
In more detail, if measured temperature is less than the first temperature (T1), then refrigerant flow direction refrigerating evaporator 5, and And the output of upper portion heater 91 simultaneously and the output of lower heater 92 can maximize so that for removing refrigerating evaporator The defrosting operating time of 5 frost can be reduced.
In addition, if measured temperature is equal to or higher than the first temperature (T1), then refrigerant is not in refrigerating evaporator 5 Flowing, and the output of the output and lower heater 92 of upper portion heater 91 can be controlled so that the temperature of refrigerating evaporator It overshoots (overshoot) to be suppressed, and the increase of the internal temperature of refrigerator can also be suppressed.
Below with reference to Figure 4 and 5 description according to the refrigerator 100 of second embodiment of the present disclosure.
Although refrigerator 100 according to second embodiment includes identical with the constituent element of the refrigerator of first embodiment 100 Constituent element, but the control content of the defrosting operation of second embodiment is different from the control content of first embodiment.
If operation mode is switched to defrosting operation from common cooling down operation, controller C can open flow channel switching The freezing chamber port of valve 8.In addition, refrigerating chamber port whether open or close it is all unimportant.But in order to remove compressor 2 Suction part and discharge part between pressure difference, can more preferably open refrigerating chamber port.
Controller C can drive upper portion heater 91 and lower heater 92 so that upper portion heater 91 and lower part heating The output level of device 92 can be maximized to 100%.
After defrosting mode starts, if the temperature measured by temperature sensor 10 reaches the first temperature (T1), then this Mean that the variation of latent heat is completed so that the freezing chamber port of flow channel switching valve 8 is closed so that refrigerant is not freezing It is flowed in evaporator 5.
Controller C can drive upper portion heater 91 and lower heater 92 simultaneously so that upper portion heater 91 and lower part The output level of heater 92 can be controlled according to following output control function (1) and (2).
(1) output control function of upper portion heater 91：100-100*(D-T1)/(T2-D)
(2) output control function of lower heater 92：100-100*(D-T1)/(X*T2-D)
In above-mentioned function (1) and (2), D can indicate the temperature detected by evaporator temperature sensor 10.
T1It can indicate the first decision temperature.For ease of description and more fully understand the disclosure, first determines temperature (T1) 0.5 DEG C can be illustratively set as.T2It can indicate the second decision temperature.For ease of description and more fully understand this public affairs It opens, can determine temperature (T by second2) illustratively it is set as 10 DEG C.
X is a coefficient, and by the coefficient, the output of lower heater 92 becomes to be above the output of upper portion heater 91.Such as Fruit X is set as 2 (that is, X=2), then just determines temperature (T second2) at complete defrosting operation before, lower heater 92 it is defeated Go out can reach 50% output level.
Controller C can control the output of the output and lower heater 92 of upper portion heater 91 simultaneously, can will be different Time and different size (or horizontal) distribute to upper portion heater 91 output and lower heater 92 output, and can To control the output of the output and lower heater 92 of upper portion heater 91 independently of one another.
Later, if the temperature measured by evaporator temperature sensor 10 reaches second temperature (T2), then controller C can be with Determine that defrosting process is completed and can stop the output of upper portion heater 91 and lower heater 92.
In general, although second temperature is not re-form the temperature of frost at evaporator, for ease of description, the of the disclosure The two temperature property of can be exemplified in the range of 8 DEG C to 12 DEG C, and the scope of the present disclosure or spirit it is without being limited thereto.
If the process of defrosting is completed, controller C can restart common cooling down operation.
The refrigerator 100 of second embodiment can have the effect of effect identical with first embodiment, and can prevent What the low portion of excretion fan or refrigerating evaporator 5 was fallen during being operated by defrosting from the upper part of refrigerating evaporator 5 Water or simultaneously and again frosting.
The refrigerator 100 of 3rd embodiment is described hereinafter with reference to Fig. 6 and Fig. 7.
Although the constituent element of refrigerator 100 according to third embodiment is identical as the constituent element of first embodiment, The control content of the refrigerator 100 of 3rd embodiment is different from the control content of first embodiment.
If operation mode, from common cooling down operation pattern switching to defrosting mode, controller C can open flow channel The freezing chamber port of switching valve 8.In addition, refrigerating chamber port whether open or close it is all unimportant.But in order to remove compression Pressure difference between the suction part and discharge part of machine 2 can more preferably open refrigerating chamber port.
Controller C can with operation upper part heater 91 and lower heater 92 with maximize upper portion heater 91 output and The output of lower heater 92.
After defrosting process starts, if the measured value based on evaporator temperature sensor 10, the temperature D's that measures is every The temperature change value of unit interval is less than scheduled changing value, then the freezing chamber port shutdown of flow channel switching valve 8 is to prevent Refrigerant flows in refrigerating evaporator 5, and at the same time can be by controller C control upper portion heaters 91 and lower heater 92 Output.
Hereafter, if the temperature change value per unit time of the temperature D measured is less than predetermined variation value, controller C It can determine the completion of latent heat variation, and the freezing chamber port of flow channel switching valve 8 can be closed so that refrigerant does not exist It is flowed in refrigerating evaporator 5.Controller C can stepwise control the output of upper portion heater 91 and lower heater 92.
Above-mentioned predetermined variation value, which can indicate to work as, measures the latent heat area changed in the time change region of measured temperature The measured value obtained when domain.For example it is assumed that the temperature measured time change per minute is 0.5 DEG C or smaller, then the disclosure Controller C can determine predetermined variation value be equal to or less than 0.5 DEG C.However, the scope of the present disclosure or spirit are without being limited thereto.
Later, if the temperature measured by evaporator temperature sensor 10 reaches second temperature (T2), then controller C can be with It determines the completion of defrosting process and can therefore stop upper portion heater 91 and lower heater 92.
In general, second temperature can refer to the temperature for not re-forming frost at evaporator.Although for the ease of description, the second temperature Degree can be in the range of 8 DEG C to 12 DEG C, but the scope of the present disclosure or spirit are without being limited thereto.
After completing defrosting process, controller C can restart common cooling down operation.
The refrigerator 100 of 3rd embodiment can have the effect of effect identical with first embodiment, and consider The latent heat region of the ice formed at refrigerating evaporator 5, can further make refrigerant flow to refrigerating evaporator 5 so that freezing The defrosting time of evaporator 5 can greatly reduce.
Due to stepwise executing defrosting process according to temperature change, it is possible to substantially reduce and be sensed by evaporator temperature Negative effect caused by the measurement error of device 10.
In addition, upper portion heater and lower heater 92 are controlled according to the variable control program of identical output, so as to With the simplified control circuit in structure and the cost of control circuit can be reduced.
It is described according to fourth embodiment of the present disclosure below with reference to Fig. 8 to Figure 10.
With reference to Fig. 8, may include according to the refrigerator 100 of fourth embodiment：Refrigerating evaporator 5；And air duct 11, from The cold air that refrigerating evaporator 5 generates is flowed by the air duct 11 in storeroom.Air duct 11 may include：Air blower 12, cold air is introduced into storeroom by the air blower 12；Catching portion 14, the warm air generated by defrosting operation are existed by catching In catching portion 14；And the movement for controlling cold air opens/closes air door (damper) 13.
It need not include always multiple evaporators according to the refrigerator of fourth embodiment, and can only include as needed one Evaporator.
Catching portion 14 can be formed in the cover frame 15 above refrigerating evaporator 5.
Cover frame 15 can be configured to be formed some parts of air duct 11, or can be structured to form freezing chamber Inner surface inner surface cover frame.
In more detail, as shown in figure 9, cover frame 15 may include the multiple ejection sections intermittently formed in vertical direction 15x, by the inside (that is, inner space of refrigerating chamber) of cold air jets to refrigerator.Each ejection section 15x may be embodied as shape Single opening (or hole) in a rectangular shape.
Cover frame 15 may include two lattices 151 being respectively formed at the both sides of the multiple ejection section 15x.Institute State some parts that the space between two lattices 151 can be air duct 11.
It can be catching portion 14 to be formed in the space at the both sides (that is, left and right side) of described two lattices 151, by The warm air that defrosting operation generates is by catching in the catching portion 14.In more detail, catching portion 14 can be formed in cover frame 15 Outer wall 15a and lattice 151 between.
The lower section for being formed in two lattices 151 in cover frame 15 can be located at by opening/closing air door 13.If beaten Opening/closing air door 13 is opened, then the air duct 11 being formed in cover frame 15 is opened so that air can pass through air duct 11 flow in a downward direction.
Different from above-mentioned the case where wherein air duct 11 is closed when opening/closing air door 13 and closing, air will not lead to Air duct 11 is crossed to flow in an upward direction.
However, if opening/closing the closing of air door 13, leader 152 and guiding channel 16 can be formed, by drawing Pathway 16 can will be introduced into from the air that refrigerating evaporator 5 generates in catching portion 14.
Refrigerant by guiding channel 16 can be formed in the outside of leader 152.In addition, guiding channel 16 can be with It is formed by the leader 152 being formed in cover frame 15.
The lower end of leader 152, which can contact, opens/closes air door 13 without forming gap.Guiding channel 16 opens wide Portion 16H can be formed between the outer wall 15a of corresponding leader 152.
In order to which the warm air generated by defrosting operation to be introduced into catching portion 14, opened portion 16H, which can be formed in, beats ON/OFF The left and right side of air door 13 is closed, and there can be 10mm or higher width.
It the upper end of leader 152 can be between lattice 151 and outer wall 15a so that entrance 14a and outlet 14b It can be formed in catching portion 14.
That is, may be used as the air by guiding channel 16 positioned at the space in the outside of leader 152 Entrance 14a, and the space inside leader 152 may be used as the outlet 14b of the air by catching portion 14. Outlet 14b may be coupled to air duct 11.
The warm air received in order to prevent from the entrance 14a in catching portion 14 flows and prevents from warming up in an upward direction Air can be located at the lower end in catching portion 14 from outlet 14b leakages, the upper end of guide portion 152, that is, the upper end of guide portion 152 The specific location of higher 20mm than the lower end of lattice 151 or higher preset distance can be located at.In addition, each catching portion 14 Cross-sectional area can be equal to air duct 11 cross-sectional area 1/2 or smaller.
Above-described embodiment discloses the refrigerator 100 of fourth embodiment with reference to Fig. 8 and Fig. 9.Exist hereinafter with reference to Figure 10 descriptions The air flowing generated in the defrosting operation of fourth embodiment.
During common cooling down operation, the opening of air door 13 is opened/closed.As a result, the cold air generated by refrigerating evaporator 5 Can be by air blower 12 by air duct 11, and can be introduced in after by the multiple ejection section 15x cold Freeze in evaporator.
However, if heater 91,92 starts to operate according to defrosting operation, it can close and open/close air door 13. In this case, the warm air heated by the heater 91,92 for being installed to refrigerating evaporator 5 can be reached by air duct 11 Open/close air door 13.
It is closed due to opening/closing air door 13, warm air will not can pass through shape by opening/closing air door 13 At the opened portion 16H movements in the both sides (left and right side) for opening/closing windscreen 13, and can be flowed by guiding channel 16 Enter in catching portion 14.Due to above structure feature, the warm air generated by defrosting operation can rest in catching portion 14, and It will not be introduced in the inside (that is, inner space of refrigerating evaporator) of refrigerator.
In addition, the entrance 14a and outlet 14b due to catching portion 14 are formed separated from each other, so the warm sky being initially introduced Gas can be cooling by the cold air of surrounding and can be moved down so that it is logical that warm air can flow to air from outlet 14b Road 11.
The warm air being newly introduced into can also rest in catching portion 14, then can be cooled according to identical mechanism.
Later, due to heater 91,92 defrosting process complete after stop operation, so controller C can open opening/ Close air door 13.Therefore, the cold air generated by refrigerating evaporator 5 can be by not being introduced in the case of catching portion 14 In refrigerating evaporator, so as to start common cooling down operation.
The refrigerator 100 of above-mentioned 4th embodiment includes catching portion 14, by the warm air for the process generation that defrosts by catching In the catching portion 14 so that refrigerator 100 can prevent the warm air generated by defrosting processing to be introduced by air duct 11 In the inner space of storeroom.
In addition, being arranged between air blower 12 and catching portion 14 if opening/closing air door 13 and opening/closing air door 13 It closes, then because there are guiding channel 16 (warm air is introduced in by the guiding channel 16 in catching portion 14), can be easy The warm air generated by defrosting operation is guided into portion of catching portion 14 by ground.In addition, refrigerator 100 can more efficiently prevent from warm sky Gas is introduced by air duct 11 in the inside of refrigerator.
In addition, catching portion 14 may include hot storage material or coolant to cool down warm air.In this case, it warms up Air can be cooled, and be introduced into the inner space of refrigerator by air duct 11 so as to be effectively prevented warm air.
According to the disclosure, if opening/closing the opening of air door 13, leader 152 and guiding channel 16 can close. In this case, cold air is introduced in catching portion 14 during common cooling down operation so that the inner space of refrigerator Cooling efficiency will not deteriorate.
In addition, according to fourth embodiment, it can differentially be controlled according to the mode of operation of refrigerator by opening/closing air door 13 The degree of opening wide.
In more detail, during the operation that defrosts, controller C, which can be completely closed, opens/closes air door 13.It is grasped cooling During the frozen mode (for example, the case where internal temperature of refrigerator is set to -18 DEG C) of work, controller C can be opened completely Open/close air door 13.In the defrosting mode (for example, the case where internal temperature of refrigerator is set as -1 DEG C to 5 DEG C) of cooling down operation Period, controller C can make to open/close air door 13 semi-open so that open/close air door 13 in full open position and The half opened condition being arranged between completely closed state is opened.
Below with reference to Figure 11 descriptions according to the refrigerator 100 of fifth embodiment of the present disclosure.
It is related to the method for controlling refrigerator disclosed in fourth embodiment according to the refrigerator 100 of the 5th embodiment.
In more detail, controller C can be detected according to the internal temperature sensor (not shown) in freezing chamber To temperature and the temperature that is detected by evaporator temperature sensor 10 control the operation of air blower 12 and open/close wind Door 13 opens or closes.
Defrost operate after, if the temperature detected by the internal temperature sensor of refrigerator with by evaporator temperature Difference between the temperature that sensor 10 detects meets predetermined value (for example, 2 DEG C or higher), then controller C can drive air blast Machine 12.
In this case, controller C can continuously beat ON/OFF after the operation of heater 91,92 is completed Air door 13 is closed until 12 resume operations of air blower.
In addition, being detected regardless of the temperature detected by the internal temperature sensor of refrigerator and by evaporator temperature sensor 10 How is the temperature arrived, and controller C can control air blower 12 after elapse of a predetermined time in the case where completing defrosting operation Start to operate.
Each operation (for example, cooling down operation, defrosting operation etc.) explained below according to fifth embodiment of the present disclosure Control content.
During common cooling down operation, controller C can be based on the temperature detected by the internal temperature sensor of refrigerator To control whether operation compressor 2 and air blower 12.If the temperature detected by evaporator temperature sensor 10 reaches predetermined Defrosting cranking temperature (for example, -10 DEG C), then controller C can start defrosting operation.
During the operation that defrosts, controller C can stop compressor 2 and air blower 12, can drive heater 91,92, And opening/closing air door 13 can be opened.Remaining control content can be identical as the control content of above-described embodiment.
If the temperature D detected by evaporator temperature sensor 10, which reaches scheduled defrosting, stops temperature (for example, 10 DEG C), then controller C can stop defrosting operation by stopping heater 91,92.
After defrosting operation is completed, controller C can start to restore cooling down operation by driving compressor 2.
During restoring cooling down operation, when the temperature measured by the internal temperature sensor of refrigerator is passed with by evaporator temperature When difference between the temperature that sensor 10 measures is set to 2 DEG C or higher, controller C can operate air blower 12.
After starting recovery cooling down operation after elapse of a predetermined time, controller C can be opened and be opened/closed air door 13.Alternatively, it is also possible to be set as a specific time predetermined time, which is until the internal temperature sensor by refrigerator Difference between the temperature that device detects and the temperature detected by evaporator temperature sensor 10, which will be set to 2 DEG C or higher, to disappear The time of consumption.However, the scope of the present disclosure or spirit are without being limited thereto.
After air blower 12 starts operation according to recovery cooling down operation, controller C can start common cooling down operation.
According to the above-mentioned refrigerator 100 of the 5th embodiment, after defrosting operation is completed, if passed by the internal temperature of refrigerator Difference between the temperature that sensor detects and the temperature detected by evaporator temperature sensor 10 is set to 2 DEG C or higher, Then air blower 12 starts to operate after the temperature of evaporator 5 reduces, and to prevent warm air from flowing into refrigerating chamber, leads to refrigerator Efficiency improve.
It is opened/closed in addition, controller C can be controlled after defrosting operation is completed before air blower 12 starts operation Air door 13 is opened so that controller C can prevent from opening/closing air door 13 and be cooled down and frosting by cold air, and can be with It prevents from opening/closing air door 13 to break down or faulty operation.
The scope of the present disclosure or spirit are without being limited thereto, and can change in various ways.
For example, although for ease of explanation, above embodiments describe 2 heaters are installed to refrigerating evaporator 5, but 3 or more heaters can also be installed to refrigerating evaporator 5 as needed.
In addition, can be arranged in the vertical direction according to multiple heaters of the disclosure, and can also exist as needed It is arranged in horizontal direction.
As being disclosed in the above-described embodiments as before, if the temperature measured by temperature sensor 10 reaches the first temperature Degree then switches refrigerant supply state by flow channel switching valve 8, switches simultaneously also by flow channel switching valve 8 and heats Device controls.However, it is possible to be performed simultaneously the switching of refrigerant supply state and heating using flow channel switching valve 8 simultaneously or not Device control switching.
In addition, the disclosure can be applied not only to the case where 5 arranged in series of refrigeration evaporator 4 and refrigerating evaporator, and It can be applied to the other situation that refrigeration evaporator 4 and refrigerating evaporator 5 are arranged in parallel.
Although for convenience, above-described embodiment has been disclosed for two evaporators (that is, refrigeration evaporator and frozen steamed Hair device) it is mounted to refrigerator, but three or more evaporators can also be installed to refrigerator as needed.On the contrary, according to Corresponding embodiment, the quantity for being installed to the heater of refrigerating evaporator 5 may be set to be 1, without departing from the model of the disclosure It encloses or spiritual.
The refrigerator according to sixth embodiment of the present disclosure is described hereinafter with reference to Figure 12 to Figure 14.
In figure 12 it can be seen that may include for being carried out to refrigeration evaporator 4 according to the refrigerator 100 of sixth embodiment The first Defrost heater h1, the second Defrost heater h2 for defrosting to refrigerating evaporator 5 of defrosting are used for refrigeration Evaporator 4 blows the first air blower f1 of air and the second air blower f2 for blowing air to freezing evaporator 5.
Defrost heater h1 and h2 can be separately mounted to the lower section of evaporator 4 and 5.Defrost heater h1, h2 and air blast Machine f1, f2 can be controlled by controller C.
In addition, refrigerating evaporator 5 may include the evaporator temperature of the temperature of the outer surface for detecting refrigerating evaporator 5 Sensor (not shown).For example, evaporator temperature sensor can be installed to the coolant conduits of refrigerating evaporator 5.It is measured Evaporator temperature (that is, detection signal) controller C can be sent to.
Therefore, controller C may include central processing unit (CPU), memory and analog-digital converter (ADC).In function On, controller C can be operated according to program stored in memory together with CPU or peripheral equipment.Therefore, refrigerator 100 Operation mode can be switched to refrigerating mode (or cooling down operation) either defrosting mode (or defrosting operation).
If cryogenic temperature region (that is, freezing chamber) is cooled by common cooling down operation, controller C can open flowing The freezing chamber port of channel switching valve 8 and the refrigerating chamber port that flow channel switching valve 8 can be closed, to deliver refrigerant to Refrigerating evaporator 5.
In addition, if refrigerated storage temperature area (that is, refrigerating chamber) is cooled, controller C can open flow channel switching valve 8 Refrigerating chamber port, and the freezing chamber port of flow channel switching valve 8 can be closed, be steamed to deliver refrigerant to refrigeration Send out device 4.
If operation mode is switched to defrosting mode from common refrigerating mode, controller C can open flow channel switching The freezing chamber port of valve 8.
In this case, whether refrigerating chamber port opens or closes all unimportant.But in order to remove compressor 2 Suction part and discharge part between pressure difference, can more preferably open refrigerating chamber port.
As it can be observed from fig. 13 that after defrosting operation starts, can driven first according to the controller C of the present embodiment First Defrost heater h1, and the second Defrost heater h2 can be driven after by the first predetermined time t1.
That is, after defrosting operation starts, controller C can drive the first Defrost heater h1.Later, it is passing through After the first predetermined time t1, controller C can drive the second Defrost heater h2.During the above process, compressor 2 can It can not be driven.
First time t1 can be equal or longer than the refrigeration until being heated by refrigeration evaporator 4 after defrosting operation starts Agent reaches the specific time usually consumed until refrigerating evaporator 5.Although first time t1 usually could be provided as 300 seconds or more It is few, but the scope of the present disclosure or spirit are without being limited thereto, and first time t1 can according to the structure type of refrigerator in response to Various conditions and change.
According to features described above, after the first Defrost heater h1 starts operation, the second Defrost heater h2 is by Start to operate after one time t1, enabling refrigerating evaporator 5 is defrosted within the time more shorter than conventional defrosting time, And the raising of freezing chamber internal temperature can be prevented.
Later, after controller C stops the first Defrost heater h1, controller C can make the second Defrost heater h2 Stop again.After the first Defrost heater h1 is stopped operation, the time stopped needed for the second Defrost heater can be with the One time t1 is identical.However, first time t1 can also be set to another according to the structural response of refrigerator in various conditions Time.
In addition, as shown in figure 13, by operation mode from defrosting operation be switched to common cooling down operation after, the first air blast Machine f1 can be to operate, until have passed through the second time t2 less than the air quantity of basic air quantity.
In more detail, controller C can from operation mode from defrosting operation be switched to common cooling down operation it is specific when Between gradually increase the first air blower f1 air quantity it is horizontal.After it have passed through the second time t2, controller C can control the first drum Wind turbine f1 is with basic air quantity levels operation.
In this case, the first air blower f1 can be before the second time t2 expires with less than basic air quantity level Air quantity levels operation so that the heat generated from refrigeration evaporator 4 or warm air can be prevented to be introduced in during the operation that defrosts In refrigerating chamber.
In addition, in operation mode after defrosting operation is switched to common cooling down operation, controller C can be in the third time T3 stops the second air blower f2 before expiring.
In more detail, the difference between the internal temperature of the temperature and freezing chamber that are detected by evaporator temperature sensor expires Sufficient predetermined value is for example, the predetermined time needed for 2 DEG C can be set as third time t3 by controller C, and controller C can be Stop the second air blower f2 during third time t3.
In this case, since controller C stops the second air blower f2 during the scheduled time, it is possible to prevent by The heat or warm air that refrigerating evaporator 5 generates are introduced into during the operation that defrosts in refrigerating evaporator.
Such as removed from Figure 13 in operation second as it can be seen that in operation mode after common cooling down operation is switched to defrosting operation Before white heater 2, controller C can stop the second air blower f2 before first time t1 expires.
In addition, the operating time of the second air blower f2 can be shorter than first time t1.
In this case, in operation mode after common cooling down operation is switched to defrosting operation, the second air blower f2 First time t1 is continued by driving.As a result, after defrosting operation starts, steamed in the second Defrost heater h2 heating frozens Before sending out device 5, will refrigerating evaporator can be transmitted to by 5 air after cooling of refrigerating evaporator, to prevent cooling efficiency Deterioration.
In addition, can be during the operation that defrosts when the first Defrost heater h1 is operated according to the refrigerator 100 of the present embodiment When control the first air blower f1 and rotated with negative direction, and can defrost operate during when the second Defrost heater h2 be operated When control the second air blower f2 and rotated with negative direction.
Above-mentioned reverse rotation can have is sent to refrigerating chamber or freezing with when the surrounding air of corresponding evaporator 4,5 The opposite direction of rotation in another direction of rotation for being generated when evaporator.In this case, the environment of corresponding evaporator 4,5 Air may not be introduced into freezing chamber or refrigerating chamber.
Therefore, above-mentioned refrigerator can more efficiently prevent from the corresponding evaporator heated by corresponding Defrost heater h1, h2 4,5 amount of heat is introduced in refrigerating chamber or freezing chamber.
According to above-mentioned refrigerator 100, refrigerating evaporator 5 is arranged in the lower section of refrigeration evaporator 4 so that from by the first defrosting The heat or warm air that the refrigeration evaporator 4 of heater h1 heating generates can be sent to by the flowing of refrigerant downward The refrigerating evaporator 5 just set up.
In addition, refrigerating evaporator 5 can defrost within the time more shorter than the relevant technologies, so as to prevent in freezing chamber The raising of portion's temperature, and the heat generated by refrigeration evaporator 4 can be prevented to be introduced in refrigerating chamber.In addition, defrosting During operation, the disclosure can prevent the heat generated by refrigerating evaporator 5 to be introduced in freezing chamber, and can prevent cold But the deterioration of efficiency.
The scope of the present disclosure or spirit are without being limited thereto, and the disclosure can be changed in various ways.
For example, operation mode to be switched to from defrosting operation before the second time t2 after cooling down operation expires, control Device C processed can be such that the air quantity level of the first air blower f1 gradually increases.However, being switched to commonly from defrosting operation in operation mode After cooling down operation, controller C can also stop the first air blower before expiring for second.
Although the controller C of above-described embodiment is characterized in that, in defrosting mode the first Defrost heater h1 and/ Or second Defrost heater h2 operating time during, the first air blower f1 and/or the second air blower f2 are rotated in mutually opposite directions, First air blower f1 and/or the second air blower f2 can be stopped operation, without rotate in the opposite direction.
In addition, although above-mentioned refrigerator includes the refrigeration evaporator 4 and refrigerating evaporator 5 of arranged in series, refrigeration evaporation Device 4 and refrigerating evaporator 5 can also be arranged in parallel.
According to above structure, during the operation that defrosts, after controller C is operated first the first Defrost heater h1, control Device C processed operates the second Defrost heater h2 after a predetermined time so that cold from being heated by the first Defrost heater h1 Refrigerating evaporator 5 can be transmitted to by the flowing of refrigerant by hiding the heat that evaporator 4 generates.Therefore, the second defrosting heating The operating time of device h2 can be shorter than the operating time of the relevant technologies so that can prevent the internal temperature of freezing chamber from increasing.
In addition, if the temperature measured by evaporator temperature sensor 10 reach predetermined temperature (that is, defrosting cranking temperature, Such as -10 DEG C), then controller C can execute the precooling of refrigerating evaporator 5, then operate heater.
In more detail, if the temperature measured by evaporator temperature sensor 10 reaches defrosting cranking temperature (such as -10 DEG C), then controller C executes precooling in the case where not stopping heater and compressor.Later, if passed by evaporator temperature The temperature that sensor 10 detects reach predetermined temperature (that is, heating cranking temperature, such as -12 DEG C), then controller C operation heating Device.
Above structure can prevent internal temperature of refrigerator to be excessively increased during the operation that defrosts.In addition, above structure can be with It is appropriately modified according to the architectural characteristic of defrosting cranking temperature or the refrigerator for being arranged to perform heating, and whether is that refrigeration is steamed Hair device 4 rather than refrigerating evaporator 5 can be pre-cooled it is unimportant.
Above with reference to the structure and characteristic for disclosing the disclosure described in attached drawing.
According to the disclosure, refrigerator includes catching portion, and the warm air generated is operated by catching in the catching portion by defrosting, Allow to prevent that the warm air generated by defrosting operation is introduced by air duct in the inner space of refrigerator.
In addition, the defrosting operating time can be reduced according to the refrigerator of the disclosure, and the interior of refrigerator can be effectively prevented Portion's temperature increases, so as to prevent the internal temperature of freezing chamber from increasing.In addition, refrigerator can prevent from warming up during the operation that defrosts Air is introduced into the inner space of refrigerator, can reduce the temperature difference of internal temperature of refrigerator, and can prevent from depositing in refrigerator The food of storage goes bad due to temperature change.
Although disclosing above-described embodiment of the disclosure for illustration purposes only herein, the range or spirit of embodiment It is without being limited thereto, and it would be recognized by those skilled in the art that various modifications, addition and replacement are feasible, without being detached from institute The scope of the present disclosure and spirit disclosed in attached claim.For example, even if aforementioned process and method may with above-mentioned difference Order execute, and/or the aforementioned components of such as system, structure, device or circuit may be with different from above-mentioned difference Form and mode combinations or connection, or substituted or switched with other component or equivalent, it can also realize the abundant of the disclosure Effect.
As from the above description it will be apparent that according to an embodiment of the present disclosure for being defrosted using heater execution The refrigerator of journey can reduce the time needed for defrosting operation, and at the same time it can be effectively prevented the raising of internal temperature of refrigerator, And the defrosting of refrigerating evaporator can be executed.As a result, refrigerator can prevent the internal temperature of freezing chamber from increasing.
In addition, refrigerator can prevent warm air to be introduced into refrigerator during the operation that defrosts, and refrigerator can be reduced Internal temperature differential, so as to prevent the food being stored in (one or more) storeroom from rotting or becoming according to temperature change It is bad.
While there has been shown and described that some embodiments of the present disclosure, it will be appreciated by those skilled in the art that can With the principle and spirit for making a change these embodiments without departing from the disclosure, the scope of the present disclosure is by claim and they Equivalent limit.

Claims (15)

1. a kind of refrigerator, including：
Storeroom；
Evaporator is configured as cooling down the storeroom；With
Air duct, the flow of cold air generated by the evaporator by the air duct,
Air blower is configured as the cold air generated by the evaporator being blown into the storage by the air duct Room；With
Catching portion is configured as keeping the warm air to be routed away from institute while operating generation warm air by defrosting State air duct.
2. refrigerator according to claim 1, further comprises：
Be configured as controlling the movement of the cold air opens/closes air door.
3. refrigerator according to claim 1, further comprises：
Multiple ejection sections are configured as the cold air being assigned in the storeroom；With
Lattice is formed in the both sides of the multiple ejection section,
Wherein, the air duct is arranged between the lattice, and the catching portion is the sky outside the lattice Between.
4. refrigerator according to claim 2, further comprises：
Opened portion and guide portion, the opened portion and the guide portion are formed to make in the both sides for opening/closing air door Refrigerant when air door is closed is opened/closed described in proper to be introduced in the catching portion.
5. refrigerator according to claim 4, wherein the guide portion is with predetermined length along each in the lattice A direction extends so that the guide portion extends beyond the bottom of the lattice with the predetermined length.
6. refrigerator according to claim 5, wherein the predetermined length range is from 10mm to 100mm.
7. refrigerator according to claim 1, wherein the catching portion includes coolant or hot storage material.
8. refrigerator according to claim 2, further comprises：
Controller is configured to open/close air door and opened portion described in control,
Wherein, the controller opens/closes air door during the defrosting operates described in closing, and is operated in the defrosting Air door is opened/closed described in being opened after completing.
9. refrigerator according to claim 8, wherein
After defrosting operation is completed, when the difference between the internal temperature of storeroom and the internal temperature of evaporator meets predetermined value When, or if having passed through the predetermined time, open/close air door described in controller opening and drive the air blower.
10. refrigerator according to claim 8, wherein
It is described open/close air door open while, controller close opened portion to prevent refrigerant to be introduced in the receipts It catches in portion.
11. refrigerator according to claim 1, further comprises：
At least one Defrost heater, by being disposed in the upper part of the evaporator and the lower part portion of the evaporator Point one of place and remove the frost being formed on the evaporator.
12. refrigerator according to claim 11, wherein at least one defrosting central member includes being located at low portion Defrost heater and the Defrost heater at upper part, and
During the operation that defrosts, the Defrost heater at the low portion of the evaporator has than being located at the evaporator Upper part at the higher output level of Defrost heater.
13. refrigerator according to claim 11, wherein at least one defrosting central member includes being located at low portion Defrost heater and the Defrost heater at upper part, and
Air blower at the upper part positioned at the evaporator Defrost heater operation when with positioned at the evaporator Low portion at Defrost heater operation when side rotate in the opposite direction.
14. a kind of refrigerator, including：
Storeroom；
Evaporator is configured as cooling down the storeroom；
Compressor is configured to compress the refrigerant evaporated by the evaporator；
Flow channel switching valve, be configured as switching the refrigerant to the evaporator flow channel；
Defrost heater is configured as removing the frost formed on the evaporator；
Temperature sensor is configured as measuring the temperature of the evaporator；With
Controller is configured as controlling the output level of the Defrost heater with stepwise manner, and based on measured Temperature opens or closes the flow channel switching valve.
15. refrigerator according to claim 14, wherein
When the Defrost heater is less than the first temperature by driving temperature measured later, described in the controller opening Flow channel switching valve and make the Defrost heater output level maximize or with stepwise manner increase described in remove The output level of white heater；With
When the temperature measured reaches the first temperature or when the change rate per unit time of the temperature measured is less than predetermined become When rate value, the controller closes the flow channel switching valve and reduces the defeated of the Defrost heater with stepwise manner Go out level.
CN201680073477.XA 2015-12-17 2016-12-14 Refrigerator with a door Active CN108369052B (en)

Applications Claiming Priority (11)

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JP2015-246469 2015-12-17
JP2015246469 2015-12-17
JP2015-255166 2015-12-25
JP2015255166 2015-12-25
JP2016-076994 2016-04-07
JP2016076994 2016-04-07
JP2016-099295 2016-05-18
JP2016099295A JP2017190936A (en) 2015-12-17 2016-05-18 refrigerator
KR10-2016-0095021 2016-07-26
KR1020160095021A KR102641371B1 (en) 2015-12-17 2016-07-26 Refrigerator
PCT/KR2016/014651 WO2017105079A1 (en) 2015-12-17 2016-12-14 Refrigerator

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EP3338041A1 (en) 2018-06-27
CN108369052B (en) 2020-11-10

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