CN112179017B - Refrigeration equipment with unfreezing function and control method thereof - Google Patents
Refrigeration equipment with unfreezing function and control method thereof Download PDFInfo
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- CN112179017B CN112179017B CN202011064805.4A CN202011064805A CN112179017B CN 112179017 B CN112179017 B CN 112179017B CN 202011064805 A CN202011064805 A CN 202011064805A CN 112179017 B CN112179017 B CN 112179017B
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- changing
- thawing
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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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- A—HUMAN NECESSITIES
- A23—FOODS OR FOODSTUFFS; TREATMENT THEREOF, NOT COVERED BY OTHER CLASSES
- A23L—FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BY SUBCLASSES A21D OR A23B-A23J; THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OF NUTRITIVE QUALITIES, PHYSICAL TREATMENT; PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL
- A23L3/00—Preservation of foods or foodstuffs, in general, e.g. pasteurising, sterilising, specially adapted for foods or foodstuffs
- A23L3/36—Freezing; Subsequent thawing; Cooling
- A23L3/365—Thawing subsequent to freezing
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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
- F25D29/00—Arrangement or mounting of control or safety devices
- F25D29/005—Mounting of control devices
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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
- F25D2600/00—Control issues
- F25D2600/02—Timing
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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
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
Abstract
The invention relates to a refrigeration device with a thawing function and a control method thereof, which control the flow directions of a refrigerant in a freezing chamber, a refrigerating chamber and a temperature-changing chamber according to the temperature information by detecting the temperature information of the temperature-changing chamber, thereby realizing the thawing, freezing or refrigerating of food in the temperature-changing chamber. Compared with the prior art, the variable-temperature chamber has richer functions, can also refrigerate or freeze food, cannot be in an idle state, and improves the utilization rate of each chamber of the refrigeration equipment. Meanwhile, the technical scheme provided by the invention realizes thawing, freezing or refrigerating of the temperature-variable chamber by changing the flow direction of the refrigerant of the refrigeration equipment without additionally arranging a heating device and a phase-change material for heat conduction, so that the equipment modification cost is lower and the energy consumption is lower. Moreover, because the food thawing temperature of difference is different, so according to the temperature in variable temperature chamber, go to changing the flow direction of refrigerant to the temperature in reverse adjustment variable temperature chamber can satisfy the demand of thawing of different food, and user experience is good, the satisfaction is high.
Description
Technical Field
The invention relates to the technical field of intelligent electrical appliances, in particular to refrigeration equipment with a thawing function and a control method thereof.
Background
Nowadays, devices for storing food at low temperature are becoming more and more common, like refrigerators in the home of the user, refrigerated and frozen self-service cabinets placed in small areas, etc.
Frozen foods, however, often cannot be processed or eaten directly and need to be thawed. In the prior art, a microwave oven or natural thawing is usually used, but the natural thawing is slow, so that bacteria are easy to breed; the food taste is damaged by microwave oven thawing, and the electricity is consumed.
In order to realize unfreezing, the prior art discloses a refrigerator unfreezing method, wherein a condenser is adopted in a unfreezing chamber as a heat source of the unfreezing chamber, and heat is conducted by utilizing a phase-change material, but the defects are that: the thawing is slow, and incomplete thawing has the problem; the related art also discloses a thawing device and a refrigerator having the same, but the thawing device is heated by a heating device, consumes energy by electric heating, and the heating device is only arranged at the bottom, so that uniform thawing cannot be performed.
Disclosure of Invention
In view of this, the present invention provides a refrigeration device with a defrosting function and a control method thereof, so as to solve the problems of high defrosting energy consumption and poor defrosting effect of the refrigeration device in the prior art.
According to a first aspect of embodiments of the present invention, there is provided a refrigeration apparatus having a defrosting function, including:
a freezing chamber, a refrigerating chamber and a temperature-changing chamber;
the temperature sensor is used for detecting the temperature information of the temperature-changing chamber;
and the controller is used for controlling the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the temperature information, so that the food in the temperature-changing chamber is unfrozen, frozen or refrigerated.
Preferably, the refrigeration apparatus further includes:
a compressor and a condenser which are connected in sequence;
a first switching three-way valve is arranged at an outlet of the condenser;
and the first switching three-way valve is used for controlling the flow direction of the refrigerant from the condenser to the freezing chamber, the refrigerating chamber and/or the temperature changing chamber.
Preferably, the first and second electrodes are formed of a metal,
a temperature-changing flow path capillary tube and a temperature-changing heat exchanger are arranged in the temperature-changing chamber;
a second switching three-way valve is arranged at the outlet of the temperature-changing heat exchanger;
and the second switching three-way valve is used for controlling the flow direction of the refrigerant from the temperature changing chamber to the freezing chamber, the refrigerating chamber and/or the condenser.
Preferably, the first and second electrodes are formed of a metal,
a freezing flow path capillary tube and a freezing evaporator are arranged in the freezing chamber;
a third switching three-way valve is arranged at an outlet of the freezing evaporator;
and the third switching three-way valve is used for controlling the flow direction of the refrigerant from the freezing chamber to the refrigerating chamber, the temperature changing chamber and/or the condenser.
Preferably, the refrigeration apparatus further includes:
the filter and the first electromagnetic valve are connected in sequence;
the first switching three-way valve is arranged on a pipeline communicated with the condenser and the filter.
Preferably, the first and second electrodes are formed of a metal,
a refrigerating flow path capillary tube and a refrigerating evaporator are arranged in the refrigerating chamber;
a first outlet of the first electromagnetic valve is connected with the refrigerating flow path capillary;
the second outlet of the first electromagnetic valve is connected with the temperature-changing flow path capillary;
and the third outlet of the first electromagnetic valve is connected with the freezing flow path capillary.
Preferably, the refrigeration apparatus further includes:
a second electromagnetic valve is arranged on the second side of the electromagnetic valve,
the inlet pipelines of the temperature-changing heat exchanger comprise three pipelines;
one pipeline is connected with the refrigeration evaporator through the third switching three-way valve;
the other pipeline is connected with the temperature-changing flow path capillary through the second electromagnetic valve;
and the last pipeline is connected with the condenser through the first switching three-way valve.
According to a second aspect of the embodiments of the present invention, there is provided a control method of a refrigeration apparatus having a defrosting function, including:
detecting temperature information of the temperature-changing chamber;
and controlling the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the temperature information, thereby realizing the unfreezing, freezing or refrigerating of food in the temperature-changing chamber.
Preferably, the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber includes:
and in the quick thawing mode, the second electromagnetic valve is closed, after the refrigerant is controlled to come out of the condenser, the refrigerant sequentially passes through the first switching three-way valve, the temperature-changing heat exchanger, the second switching three-way valve, the filter and the electromagnetic valve, one path of the refrigerant returns to the compressor through the freezing evaporator, and the other path of the refrigerant returns to the compressor through the refrigerating evaporator, so that the temperature-changing heat exchanger serves as the temperature-changing condenser to quickly release heat, and the temperature of the temperature-changing chamber is increased.
Preferably, the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber further includes:
and in the slow unfreezing mode, the second electromagnetic valve is closed, the refrigerant is controlled to come out of the condenser and sequentially pass through the first switching three-way valve, the filter and the first electromagnetic valve, one path of refrigerant sequentially passes through the freezing evaporator and the temperature-changing heat exchanger and returns to the compressor, and the other path of refrigerant sequentially passes through the refrigerating evaporator and returns to the compressor, so that the temperature-changing heat exchanger serves as the temperature-changing evaporator to reduce heat release and reduce the temperature of the temperature-changing chamber.
Preferably, the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber further includes:
in the cold storage mode, the second electromagnetic valve is opened, after the refrigerant is controlled to come out of the condenser, the refrigerant sequentially passes through the first switching three-way valve, the filter and the first electromagnetic valve, one path of the refrigerant returns to the compressor through the variable temperature heat exchanger, and the other path of the refrigerant returns to the compressor through the cold storage evaporator, so that the variable temperature heat exchanger serves as the variable temperature evaporator to absorb heat, and the temperature of the variable temperature chamber is reduced.
Preferably, the control method further includes:
determining the thawing starting time of food in the temperature changing chamber;
entering a thawing state at the thawing starting time;
and under the unfreezing state, controlling the temperature of the temperature changing chamber according to the unfreezing condition of the food in the temperature changing chamber.
Preferably, the determining of the thawing start time of the food in the temperature changing chamber includes:
the user input of the thawing start time is received, or,
and selecting the best matched thawing time sequence according to the thawing completion time and the name of the thawed food input by the user, and pushing back the thawing starting time.
Preferably, the controlling the temperature of the variable temperature chamber includes:
if the food in the temperature changing chamber can be defrosted for a preset time, entering a slow defreezing mode, and reducing the temperature of the temperature changing chamber until defreezing is completed;
if the food in the temperature changing chamber can be thawed on time or the time for completing the thawing in advance does not exceed the preset time, the current temperature of the temperature changing chamber is kept;
and if the food in the temperature changing chamber can not be thawed on time, entering a quick thawing mode, and increasing the temperature of the temperature changing chamber until thawing is completed.
Preferably, the control method further includes:
and after the thawing is finished, controlling the temperature change chamber to be in a cold storage state.
The technical scheme provided by the embodiment of the invention can have the following beneficial effects:
the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber are controlled according to the temperature information by detecting the temperature information of the temperature-changing chamber, so that the food in the temperature-changing chamber is unfrozen, frozen or refrigerated. Compared with the prior art, the technical scheme provided by the invention has the advantages that the function of the temperature-changing chamber is richer, when food does not need to be unfrozen, the temperature-changing chamber can also refrigerate or freeze the food, the temperature-changing chamber cannot be in an idle state, and the utilization rate of each compartment of the refrigeration equipment is improved.
Meanwhile, the technical scheme provided by the invention realizes thawing, freezing or refrigerating of the temperature-variable chamber by changing the flow direction of the refrigerant of the refrigeration equipment without additionally arranging a heating device and a phase-change material for heat conduction, so that the equipment modification cost is lower and the energy consumption is lower.
Moreover, because the food thawing temperature of difference is different, so according to the temperature in variable temperature chamber, go to changing the flow direction of refrigerant to the temperature in reverse adjustment variable temperature chamber can satisfy the demand of thawing of different food, and user experience is good, the satisfaction is high.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the invention, as claimed.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and together with the description, serve to explain the principles of the invention.
FIG. 1 is a functional schematic diagram of a refrigeration unit having a defrost function according to an exemplary embodiment;
FIG. 2 is a flow chart illustrating a method of controlling a refrigeration appliance having a defrost function in accordance with an exemplary embodiment;
FIG. 3 is a defrost flow diagram of a refrigeration appliance in a scheduled defrost mode in accordance with an exemplary embodiment;
fig. 4 is a flow diagram illustrating defrosting of a refrigeration apparatus in an automatic defrost mode according to an exemplary embodiment.
Detailed Description
Reference will now be made in detail to the exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, like numbers in different drawings represent the same or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with the present invention. Rather, they are merely examples of apparatus and methods consistent with certain aspects of the invention, as detailed in the appended claims.
A refrigeration device having a defrost function is shown according to an exemplary embodiment including:
a freezing chamber, a refrigerating chamber and a temperature-changing chamber;
the temperature sensor is used for detecting the temperature information of the temperature-changing chamber;
and the controller is used for controlling the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the temperature information, so that the food in the temperature-changing chamber is unfrozen, frozen or refrigerated.
In addition, the refrigeration apparatus includes: refrigerators, freezers, etc.
It will be appreciated that the temperature-changing chamber generally acts as a freezer compartment for holding food to be thawed. When food needs to be thawed in a specific time, the refrigeration equipment can control the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the detection result of the temperature sensor of the temperature-changing chamber, so as to heat and thaw the food.
It can be understood that, in the technical scheme provided in this embodiment, the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber are controlled according to the temperature information by detecting the temperature information of the temperature-changing chamber, so that the food in the temperature-changing chamber is thawed, frozen or refrigerated. Compared with the prior art, the technical scheme that this embodiment provided, the function of variable-temperature chamber is abundanter, and when food need not unfreeze, variable-temperature chamber can also be cold-stored or frozen food, and variable-temperature chamber can not be in idle state, has improved the utilization ratio of each compartment of refrigeration plant.
Meanwhile, due to the technical scheme provided by the embodiment, the thawing, freezing or refrigerating of the temperature-variable chamber is realized by changing the flow direction of the refrigerant of the refrigeration equipment, a heating device and phase-change material heat conduction do not need to be additionally arranged, the equipment modification cost is lower, and the energy consumption is smaller.
Moreover, because the food thawing temperature of difference is different, so according to the temperature in variable temperature chamber, go to changing the flow direction of refrigerant to the temperature in reverse adjustment variable temperature chamber can satisfy the demand of thawing of different food, and user experience is good, the satisfaction is high.
Referring to fig. 1, preferably, the refrigeration apparatus further includes:
the compressor 1 and the condenser 2 are connected in sequence;
a first switching three-way valve 11 is arranged at an outlet of the condenser 2;
the first switching three-way valve 11 is used for controlling the flow direction of the refrigerant from the condenser 2 to the freezing chamber, the refrigerating chamber and/or the temperature changing chamber.
Preferably, the first and second electrodes are formed of a metal,
a temperature-changing flow path capillary tube 7 and a temperature-changing heat exchanger 8 are arranged in the temperature-changing chamber;
a second switching three-way valve 12 is arranged at the outlet of the temperature-changing heat exchanger 8;
and the second switching three-way valve 12 is used for controlling the flow direction of the refrigerant from the temperature changing chamber to the freezing chamber, the refrigerating chamber and/or the condenser 2.
Preferably, the first and second electrodes are formed of a metal,
a freezing flow path capillary tube 5 and a freezing evaporator 6 are arranged in the freezing chamber;
a third switching three-way valve 13 is arranged at the outlet of the freezing evaporator 6;
and the third switching three-way valve 13 is used for controlling the flow direction of the refrigerant from the freezing chamber to the refrigerating chamber, the temperature changing chamber and/or the condenser 2.
Preferably, the refrigeration apparatus further includes:
the filter 3 and the first electromagnetic valve 4 are connected in sequence;
the first switching three-way valve 11 is provided on a pipeline through which the condenser 2 and the filter 3 communicate.
Preferably, the first and second electrodes are formed of a metal,
a refrigerating flow path capillary tube 9 and a refrigerating evaporator 10 are arranged in the refrigerating chamber;
a first outlet of the first electromagnetic valve 4 is connected with the refrigeration flow path capillary 9;
a second outlet of the first electromagnetic valve 4 is connected with the temperature-changing flow path capillary 7;
a third outlet of the first solenoid valve 4 is connected to the freezing flow path capillary 5.
Preferably, the refrigeration apparatus further includes:
the second solenoid valve 14 is operated in a second position,
the inlet pipelines of the temperature-changing heat exchanger 8 comprise three pipelines;
one of the pipelines is connected with the refrigeration evaporator 6 through the third switching three-way valve 13;
the other pipeline is connected with the temperature-changing flow path capillary 7 through the second electromagnetic valve 14;
the last line is connected to the condenser 2 via the first three-way switching valve 11.
Fig. 2 shows a flow chart of a control method of a refrigeration device with a defrosting function according to an exemplary embodiment, which control method, with reference to fig. 2, comprises:
step S1, detecting temperature information of the temperature-changing chamber;
and step S2, controlling the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the temperature information, thereby realizing the unfreezing, freezing or refrigerating of the food in the temperature-changing chamber.
It should be noted that the technical solution provided in the present embodiment is applied to the refrigeration apparatus with defrosting function shown in fig. 1.
It can be understood that, in the technical scheme provided in this embodiment, the flow directions of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber are controlled according to the temperature information by detecting the temperature information of the temperature-changing chamber, so that the food in the temperature-changing chamber is thawed, frozen or refrigerated. Compared with the prior art, the technical scheme that this embodiment provided, the function of variable-temperature chamber is abundanter, and when food need not unfreeze, variable-temperature chamber can also be cold-stored or frozen food, and variable-temperature chamber can not be in idle state, has improved the utilization ratio of each compartment of refrigeration plant.
Meanwhile, due to the technical scheme provided by the embodiment, the thawing, freezing or refrigerating of the temperature-variable chamber is realized by changing the flow direction of the refrigerant of the refrigeration equipment, a heating device and phase-change material heat conduction do not need to be additionally arranged, the equipment modification cost is lower, and the energy consumption is smaller.
Moreover, because the food thawing temperature of difference is different, so according to the temperature in variable temperature chamber, go to changing the flow direction of refrigerant to the temperature in reverse adjustment variable temperature chamber can satisfy the demand of thawing of different food, and user experience is good, the satisfaction is high.
Preferably, the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber includes:
in the fast thawing mode, the second electromagnetic valve 14 is closed, after the refrigerant is controlled to come out of the condenser 2 and sequentially pass through the first switching three-way valve 11, the temperature-changing heat exchanger 8, the second switching three-way valve 12, the filter 3 and the electromagnetic valve 4, one path of refrigerant returns to the compressor 1 through the freezing evaporator 6, and the other path of refrigerant returns to the compressor 1 through the refrigerating evaporator 10, so that the temperature-changing heat exchanger 8 serves as a temperature-changing condenser to quickly release heat, and the temperature of the temperature-changing chamber is increased.
Preferably, the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber further includes:
in the slow-speed unfreezing mode, the second electromagnetic valve 14 is closed, after the refrigerant is controlled to come out of the condenser 2 and sequentially passes through the first switching three-way valve 11, the filter 3 and the first electromagnetic valve 4, one path of refrigerant sequentially passes through the freezing evaporator 6 and the temperature-changing heat exchanger 8 and returns to the compressor 1, and the other path of refrigerant sequentially passes through the refrigeration evaporator 10 and returns to the compressor 1, so that the temperature-changing heat exchanger 8 serves as the temperature-changing evaporator to reduce heat release and reduce the temperature of the temperature-changing chamber.
Preferably, the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber further includes:
in the cold storage mode, the second electromagnetic valve 14 is opened, after the refrigerant is controlled to come out from the condenser 2, the refrigerant sequentially passes through the first switching three-way valve 11, the filter 3 and the first electromagnetic valve 4, one path of the refrigerant returns to the compressor 1 through the temperature-changing heat exchanger 8, and the other path of the refrigerant returns to the compressor 1 through the cold storage evaporator 10, so that the temperature-changing heat exchanger 8 serves as the temperature-changing evaporator to absorb heat, and the temperature of the temperature-changing chamber is reduced.
It can be understood that the technical scheme that this embodiment provided, through the effect of alternating temperature heat exchanger, to warming up or refrigeration in the alternating temperature room, make the scope of unfreezing temperature wider, more comprehensive, can satisfy even freezing other foods of cold-stored in the alternating temperature room, the function is abundant, the compatibility is strong, user experience is good, the satisfaction is high.
Preferably, the control method further includes:
determining the thawing starting time of food in the temperature changing chamber;
entering a thawing state at the thawing starting time;
and under the unfreezing state, controlling the temperature of the temperature changing chamber according to the unfreezing condition of the food in the temperature changing chamber.
Preferably, the determining of the thawing start time of the food in the temperature changing chamber includes:
the user input of the thawing start time is received, or,
and selecting the best matched thawing time sequence according to the thawing completion time and the name of the thawed food input by the user, and pushing back the thawing starting time.
Preferably, the controlling the temperature of the variable temperature chamber includes:
if the food in the temperature changing chamber can be defrosted for a preset time, entering a slow defreezing mode, and reducing the temperature of the temperature changing chamber until defreezing is completed;
if the food in the temperature changing chamber can be thawed on time or the time for completing the thawing in advance does not exceed the preset time, the current temperature of the temperature changing chamber is kept;
and if the food in the temperature changing chamber can not be thawed on time, entering a quick thawing mode, and increasing the temperature of the temperature changing chamber until thawing is completed.
Preferably, the control method further includes:
and after the thawing is finished, controlling the temperature change chamber to be in a cold storage state.
It can be understood that after the thawing is finished, the temperature-changing chamber is controlled to be in a cold storage state, so that the food after thawing can be kept fresh, and the food can be prevented from being rotten and going bad after being thawed for a long time.
Fig. 3 shows a defrosting flowchart of a refrigeration apparatus in a scheduled defrosting mode according to an exemplary embodiment, referring to fig. 3, the defrosting method includes:
under the reserved unfreezing mode, selecting an optimal matched unfreezing time sequence according to unfreezing completion time and unfrozen food names input by a user, and calculating unfreezing starting time;
judging whether the thawing starting time is reached, if so, entering a thawing state; otherwise, keeping the temperature of the current temperature-changing chamber unchanged;
if the temperature of the temperature-variable chamber is not changed, the temperature of the temperature-variable chamber is maintained; otherwise, calculating the needed thawing time according to the thawing condition and the temperature change of the stored food;
judging whether the stored food can be thawed on time according to the calculated thawing time required and the thawing completion time input by the user;
if the stored food can be defrosted in advance, and the advance time length exceeds a preset time length (for example, 35 minutes), entering a slow unfreezing mode (the temperature is slowly reduced, and the unfreezing speed is slowed) until the unfreezing is finished;
if the stored food can be thawed on time, or the thawing is finished in advance, but the advanced time length does not exceed the preset time length, the temperature of the current temperature-changing chamber is kept unchanged;
and if the stored food cannot be thawed on time, entering a quick thawing mode (temperature is increased, thawing speed is increased) until thawing is finished.
It will be appreciated that different foods have different storage temperatures, like meat which is much lower than vegetables, but the meat needs to be thawed if it is to be cooked. The technical scheme that this embodiment provided, according to the food name of thawing completion time and thawing of user's input, select the thawing time sequence of best collocation to calculate the thawing start time, can thaw various frozen food better, simultaneously, through intelligent control, can avoid food standing time overlength or the short after thawing, the problem of unfreezing incompletely or breeding the bacterium takes place.
Fig. 4 shows a defrosting flowchart of a refrigeration device in an automatic defrosting mode according to an exemplary embodiment, referring to fig. 4, the defrosting method comprising:
in the automatic unfreezing mode, unfreezing completion time, unfreezing start time and unfreezing temperature input by a user are received;
judging whether the thawing starting time is reached, if so, entering a thawing state; otherwise, keeping the temperature of the current temperature-changing chamber unchanged;
if the temperature of the temperature-variable chamber is not changed, the temperature of the temperature-variable chamber is maintained; otherwise, calculating the needed thawing time according to the thawing condition and the temperature change of the stored food;
judging whether the stored food can be thawed on time according to the calculated thawing time required and the thawing completion time input by the user;
if the stored food can be defrosted in advance, and the advance time length exceeds a preset time length (for example, 35 minutes), entering a slow unfreezing mode (the temperature is slowly reduced, and the unfreezing speed is slowed) until the unfreezing is finished;
if the stored food can be thawed on time, or the thawing is finished in advance, but the advanced time length does not exceed the preset time length, the temperature of the current temperature-changing chamber is kept unchanged;
and if the stored food cannot be thawed on time, entering a quick thawing mode (temperature is increased, thawing speed is increased) until thawing is finished.
It will be appreciated that different foods have different storage temperatures, like meat which is much lower than vegetables, but the meat needs to be thawed if it is to be cooked. The technical scheme that this embodiment provided, the unfreezing finish time, the start time of unfreezing and the back temperature of unfreezing of receiving user's input can unfreeze various frozen food better, simultaneously, through intelligent control, can avoid the food holding time overlength or the short excessively after unfreezing, and the problem of unfreezing incompletely or breeding the bacterium takes place.
It is understood that the same or similar parts in the above embodiments may be mutually referred to, and the same or similar parts in other embodiments may be referred to for the content which is not described in detail in some embodiments.
It should be noted that the terms "first," "second," and the like in the description of the present invention are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. Further, in the description of the present invention, the meaning of "a plurality" means at least two unless otherwise specified.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
The storage medium mentioned above may be a read-only memory, a magnetic or optical disk, etc.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (12)
1. A refrigerating apparatus with a defrosting function, characterized by comprising:
a freezing chamber, a refrigerating chamber and a temperature-changing chamber;
the temperature sensor is used for detecting the temperature information of the temperature-changing chamber;
the controller is used for controlling the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the temperature information, so that the food in the temperature-changing chamber is unfrozen, frozen or refrigerated;
the compressor (1) and the condenser (2) are connected in sequence;
a first switching three-way valve (11) is arranged at an outlet of the condenser (2);
the first switching three-way valve (11) is used for controlling the flow direction of a refrigerant from the condenser (2) to the freezing chamber, the refrigerating chamber and/or the temperature changing chamber;
a temperature-changing flow path capillary tube (7) and a temperature-changing heat exchanger (8) are arranged in the temperature-changing chamber;
a second switching three-way valve (12) is arranged at the outlet of the temperature-changing heat exchanger (8);
and the second switching three-way valve (12) is used for controlling the flow direction of the refrigerant from the temperature changing chamber to the freezing chamber, the refrigerating chamber and/or the condenser (2).
2. The refrigeration appliance according to claim 1,
a freezing flow path capillary tube (5) and a freezing evaporator (6) are arranged in the freezing chamber;
a third switching three-way valve (13) is arranged at an outlet of the freezing evaporator (6);
and the third switching three-way valve (13) is used for controlling the flow direction of the refrigerant from the freezing chamber to the refrigerating chamber, the temperature changing chamber and/or the condenser (2).
3. The refrigeration appliance of claim 2, further comprising:
the filter (3) and the first electromagnetic valve (4) are connected in sequence;
and the first switching three-way valve (11) is arranged on a pipeline communicated with the condenser (2) and the filter (3).
4. The refrigeration appliance according to claim 3,
a refrigerating flow path capillary tube (9) and a refrigerating evaporator (10) are arranged in the refrigerating chamber;
a first outlet of the first electromagnetic valve (4) is connected with the refrigeration flow path capillary (9);
a second outlet of the first electromagnetic valve (4) is connected with the temperature-changing flow path capillary tube (7);
and a third outlet of the first electromagnetic valve (4) is connected with the freezing flow path capillary tube (5).
5. The refrigeration appliance of claim 4, further comprising:
a second electromagnetic valve (14),
the inlet pipelines of the temperature-changing heat exchanger (8) comprise three pipelines;
one pipeline is connected with the refrigeration evaporator (6) through the third switching three-way valve (13);
the other pipeline is connected with the variable temperature flow path capillary (7) through the second electromagnetic valve (14);
the last pipeline is connected with the condenser (2) through the first switching three-way valve (11).
6. A control method of a refrigeration apparatus having a defrosting function, characterized by comprising:
detecting temperature information of the temperature-changing chamber;
controlling the flow direction of a refrigerant in the freezing chamber, the refrigerating chamber and the temperature-changing chamber according to the temperature information, thereby realizing the unfreezing, freezing or refrigerating of food in the temperature-changing chamber;
the flow direction of the control refrigerant in the freezing chamber, the refrigerating chamber and the temperature changing chamber comprises:
under the mode of rapid thawing, close second solenoid valve (14), control refrigerant comes out from condenser (2) back, in proper order through first switching three-way valve (11), alternating heat exchanger (8), second switching three-way valve (12), filter (3), solenoid valve (4), get back to compressor (1) through freezing evaporimeter (6) all the way, and another way gets back to compressor (1) through cold-stored evaporimeter (10), so that alternating heat exchanger (8) act as the alternating heat condenser and release heat fast, improve the temperature in alternating heat room.
7. The control method according to claim 6, wherein the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber, and the temperature changing chamber further comprises:
in the slow-speed unfreezing mode, the second electromagnetic valve (14) is closed, after the refrigerant is controlled to come out of the condenser (2) and sequentially pass through the first switching three-way valve (11), the filter (3) and the first electromagnetic valve (4), one path of refrigerant sequentially passes through the freezing evaporator (6) and the variable temperature heat exchanger (8) and returns to the compressor (1), and the other path of refrigerant sequentially passes through the refrigeration evaporator (10) and returns to the compressor (1), so that the variable temperature heat exchanger (8) serves as the variable temperature evaporator to reduce heat release and reduce the temperature of the variable temperature chamber.
8. The control method according to claim 6, wherein the controlling of the flow direction of the refrigerant in the freezing chamber, the refrigerating chamber, and the temperature changing chamber further comprises:
in the cold storage mode, the second electromagnetic valve (14) is opened, after a control refrigerant comes out from the condenser (2) and sequentially passes through the first switching three-way valve (11), the filter (3) and the first electromagnetic valve (4), one path of the control refrigerant returns to the compressor (1) through the variable temperature heat exchanger (8), and the other path of the control refrigerant returns to the compressor (1) through the cold storage evaporator (10), so that the variable temperature heat exchanger (8) serves as a variable temperature evaporator to absorb heat, and the temperature of the variable temperature chamber is reduced.
9. The control method according to claim 6, characterized by further comprising:
determining the thawing starting time of food in the temperature changing chamber;
entering a thawing state at the thawing starting time;
and under the unfreezing state, controlling the temperature of the temperature changing chamber according to the unfreezing condition of the food in the temperature changing chamber.
10. The control method of claim 9, wherein said determining a thaw start time of food within the temperature change chamber comprises:
the user input of the thawing start time is received, or,
and selecting the best matched thawing time sequence according to the thawing completion time and the name of the thawed food input by the user, and pushing back the thawing starting time.
11. The control method according to claim 9, wherein the controlling the temperature of the variable temperature chamber includes:
if the food in the temperature changing chamber can be defrosted for a preset time, entering a slow defreezing mode, and reducing the temperature of the temperature changing chamber until defreezing is completed;
if the food in the temperature changing chamber can be thawed on time or the time for completing the thawing in advance does not exceed the preset time, the current temperature of the temperature changing chamber is kept;
and if the food in the temperature changing chamber can not be thawed on time, entering a quick thawing mode, and increasing the temperature of the temperature changing chamber until thawing is completed.
12. The control method according to claim 11, characterized by further comprising:
and after the thawing is finished, controlling the temperature change chamber to be in a cold storage state.
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| CN202011064805.4A CN112179017B (en) | 2020-09-30 | 2020-09-30 | Refrigeration equipment with unfreezing function and control method thereof |
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| CN114165979B (en) * | 2021-09-30 | 2023-11-21 | 海信家电集团股份有限公司 | Refrigerator and operation control method for defrosting function of refrigerator |
| CN114909852A (en) * | 2022-04-27 | 2022-08-16 | Tcl家用电器（合肥）有限公司 | Refrigerator and control method of refrigerator |
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| US5896753A (en) * | 1996-10-18 | 1999-04-27 | Lg Electronics Inc. | Freezing cycle apparatus having quick freezing and thawing functions |
| JP2005180874A (en) * | 2003-12-22 | 2005-07-07 | Toshiba Corp | Refrigerator |
| CN104279826A (en) * | 2014-08-20 | 2015-01-14 | 北京工业大学 | Heat storage unfreezing and heat preservation system for household refrigerator |
| CN106016949B (en) * | 2016-05-23 | 2018-05-29 | 青岛海尔股份有限公司 | The defreezing method and refrigerator of refrigerator storage object |
| CN205939879U (en) * | 2016-07-11 | 2017-02-08 | 九阳股份有限公司 | Refrigerator and refrigerating system thereof |
| CN106595181A (en) * | 2016-12-21 | 2017-04-26 | 合肥美的电冰箱有限公司 | Refrigerator refrigerating system, refrigerator and thawing method |
| CN107289712A (en) * | 2017-07-25 | 2017-10-24 | 南京创维家用电器有限公司 | A kind of wind cooling refrigerator and its refrigeration system, refrigeration control method |
| CN110411142B (en) * | 2019-08-20 | 2023-10-03 | 珠海格力电器股份有限公司 | Food fresh-keeping thawing method and device, food storage device and refrigerator |
| CN110887301A (en) * | 2019-11-18 | 2020-03-17 | 海信（山东）冰箱有限公司 | Refrigerating equipment |
| CN111006432B (en) * | 2019-11-20 | 2021-11-26 | 海信容声(广东)冰箱有限公司 | Energy-saving refrigerator and quick thawing method and system thereof |
| CN111238095B (en) * | 2020-03-12 | 2023-04-07 | 长虹美菱股份有限公司 | Refrigerating system for realizing variable-temperature chamber deep cooling and control method thereof |
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