CN111006432B - Energy-saving refrigerator and quick thawing method and system thereof - Google Patents

Energy-saving refrigerator and quick thawing method and system thereof Download PDF

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Publication number
CN111006432B
CN111006432B CN201911153248.0A CN201911153248A CN111006432B CN 111006432 B CN111006432 B CN 111006432B CN 201911153248 A CN201911153248 A CN 201911153248A CN 111006432 B CN111006432 B CN 111006432B
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China
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temperature
chamber
refrigerating
changing
variable
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CN111006432A (en
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刘玉民
蔡金伶
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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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
    • 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
    • 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
    • F25D17/08—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 using 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
    • F25D21/00—Defrosting; Preventing frosting; Removing condensed or defrost water
    • F25D21/06—Removing frost
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D29/00—Arrangement or mounting of control or safety devices
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D2700/00—Means for sensing or measuring; Sensors therefor
    • F25D2700/12—Sensors measuring the inside temperature
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
    • Y02P60/80—Food processing, e.g. use of renewable energies or variable speed drives in handling, conveying or stacking
    • Y02P60/85—Food storage or conservation, e.g. cooling or drying

Abstract

The invention relates to the field of refrigerator equipment, and discloses an energy-saving refrigerator which comprises a refrigerating chamber and a temperature-changing chamber, wherein the temperature-changing chamber is provided with a temperature-changing evaporator and a temperature-changing fan, a circulating air path is formed between the refrigerating chamber and the temperature-changing chamber through an air supply pipe and an air return pipe, an air door is arranged on the air supply pipe, and when the refrigerating chamber needs to be refrigerated or the temperature-changing chamber needs to be heated and unfrozen, the temperature-changing fan and the air door are opened to conduct the circulating air path to form convective heat transfer, so that the refrigerating chamber is supported to refrigerate by using the cold energy of the temperature-changing chamber, and the temperature-changing chamber is supported to heat by using the heat energy of the refrigerating chamber. The invention also discloses a quick thawing method and a quick thawing system using the energy-saving refrigerator. By adopting the invention, the energy sources in the refrigerating chamber and the temperature changing chamber can be reasonably utilized, the frozen food in the temperature changing chamber can be quickly unfrozen and the refrigerating chamber can be refrigerated, meanwhile, the energy consumption of the whole machine can not be increased, and the material cost of the product can be saved.

Description

Energy-saving refrigerator and quick thawing method and system thereof
Technical Field
The invention relates to the field of refrigerator equipment, in particular to an energy-saving refrigerator and a quick thawing method and system thereof.
Background
The refrigerator is a refrigeration device which keeps constant low temperature, brings convenience to food preservation, can prolong the preservation time of food when the temperature of the food reaches the freezing temperature (such as less than or equal to-18 ℃), so that food such as meat, fish and the like which needs to be preserved for a long time is usually placed in a freezing chamber or a temperature-changing chamber (the temperature-changing chamber reaches the freezing temperature), but because the temperature of the freezing chamber is low, the moisture in the food such as meat, fish and the like placed in the freezing or temperature-changing chamber is frozen, can not be used for cooking immediately, and needs to be thawed first. The thawing schemes for general users are as follows:
firstly, before cooking, taking out frozen food, naturally thawing by using the heat of the environment, and wasting a long time for a pain point of a user;
secondly, the food is heated by utilizing heat generated by hot water or microwaves and the like, so that the thawing time can be saved, the food thawing speed is too high due to the fact that the temperature of external heat is too high at a pain point of a user, the cell walls of the food are easy to break, a large amount of blood water is generated, the loss of nutritional ingredients is increased, and a large amount of energy is consumed by heat sources such as hot water and microwaves;
thirdly, food to be defrosted is placed into the refrigerating chamber, the pain point is that the refrigerating chamber needs available space, and the food is carried manually, and the unfreezing needs long time and is troublesome and laborious.
In order to solve the pain point of the user in the using process, in some existing refrigerator products, a temperature-changing chamber is set to be wide in temperature changing range, when the temperature-adjusting range of the temperature-changing chamber spans 0 ℃, and when the temperature-adjusting range of the temperature-changing chamber is set below 0 ℃ (for example, the temperature-changing chamber is set at minus 20 ℃), the temperature-changing chamber can normally refrigerate through the cold energy of an evaporator, but when the temperature is set to be normal (for example, the temperature is set at 5 ℃), the temperature of a compartment can be kept to be normal only by depending on the heat of a heater. And the adjacent compartments are normally refrigerated, the temperature change chamber needs to be heated by a heater, the temperature change heater consumes electricity, energy is wasted, and meanwhile, the temperature change chamber can transfer heat to the adjacent compartments, so that the heat load of the adjacent compartments is increased, and the energy consumption of the whole machine is further increased.
Disclosure of Invention
The present invention is directed to solving, at least to some extent, one of the technical problems in the art described above. Therefore, the invention aims to provide an energy-saving refrigerator and a quick thawing method and system thereof, which can realize quick thawing of frozen food without increasing the energy consumption of the whole refrigerator.
In order to achieve the purpose, the invention adopts the following technical scheme:
the embodiment of the first aspect of the invention provides an energy-saving refrigerator, which comprises a refrigerating chamber and a temperature-changing chamber, wherein the temperature-changing chamber is provided with a temperature-changing evaporator and a temperature-changing fan, a circulating air path is formed between the refrigerating chamber and the temperature-changing chamber through an air supply pipe and an air return pipe, and the air supply pipe is provided with an air door; when the refrigerating chamber needs to be refrigerated or the temperature-changing chamber needs to be heated and thawed, the temperature-changing fan and the air door are opened, and the circulating air path is conducted to form convective heat transfer, so that the refrigerating chamber is supported to be refrigerated by using the cold energy of the temperature-changing chamber, and the temperature of the temperature-changing chamber is supported to be heated by using the heat of the refrigerating chamber.
As a preferable scheme of the energy-saving refrigerator, the energy-saving refrigerator further comprises a freezing chamber, the freezing chamber is provided with a freezing evaporator and a freezing fan, and the freezing evaporator and the temperature-changing evaporator are connected in parallel or connected in series in a refrigerating system.
As a preferable scheme of the energy-saving refrigerator, a temperature-changing defrosting heater is arranged at the bottom of the temperature-changing evaporator.
As a preferable scheme of the energy-saving refrigerator of the invention, a freezing defrosting heater is arranged at the bottom of the freezing evaporator.
As a preferable scheme of the energy-saving refrigerator, the door body of the energy-saving refrigerator is of a four-door cross-split structure, the refrigerating chamber is arranged at the upper part of the refrigerator, the temperature changing chamber is arranged at the left side of the lower part of the refrigerator, and the freezing chamber is arranged at the right side of the lower part of the refrigerator.
An embodiment of a second aspect of the present invention provides a quick thawing method for an energy-saving refrigerator, which includes the following steps:
responding to a quick thawing instruction input by a user, acquiring the temperature of a variable-temperature gear, the refrigerating starting temperature and the refrigerating shutdown temperature set by the user, and acquiring the temperature of a variable-temperature chamber and the temperature of a refrigerating chamber in real time;
when the temperature of the temperature-changing chamber is less than 0 ℃ and the temperature of the temperature-changing gear is more than 0 ℃, stopping refrigerating the temperature-changing chamber;
after the variable temperature chamber is stopped from being refrigerated, judging whether the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting temperature, if so, opening an air door and a variable temperature fan, and forming a circulating air path between the refrigerating chamber and the variable temperature chamber through an air supply pipe and a return air pipe;
and judging whether the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, if so, closing the air door and stopping refrigerating the refrigerating chamber.
As a preferable embodiment of the quick thawing method for the energy-saving refrigerator of the present invention, after the cooling of the variable temperature chamber is stopped, the method further includes: and when the temperature of the temperature changing chamber is greater than or equal to 0 ℃, or the temperature of the temperature changing gear is less than or equal to 0 ℃, controlling the temperature changing chamber to refrigerate according to a normal refrigeration mode.
As a preferred embodiment of the quick thawing method for the energy-saving refrigerator of the present invention, if it is determined that the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, the damper is closed, and refrigeration of the refrigerating chamber is stopped, specifically: if the temperature of the refrigerating chamber is judged to be less than or equal to the refrigerating shutdown temperature and the temperature of the temperature-changing chamber is judged to be less than the temperature of the temperature-changing gear, after a period of time, if the temperature of the temperature-changing chamber is judged to be still less than the temperature of the temperature-changing gear, the temperature-changing defrosting heater and the temperature-changing fan are started under the condition that the air door is closed.
As a preferable scheme of the quick thawing method of the energy-saving refrigerator of the present invention, after the judging whether the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, the method further comprises: if the temperature of the refrigerating chamber is judged to be higher than the refrigerating shutdown temperature and the temperature of the temperature changing chamber reaches the temperature of the temperature changing gear, the air door and the temperature changing fan are continuously opened, the refrigerating of the temperature changing chamber is controlled according to a normal refrigerating mode until the temperature of the refrigerating chamber reaches the refrigerating shutdown temperature, the air door is closed, the refrigerating of the refrigerating chamber is stopped, and the refrigerating of the temperature changing chamber is stopped when the temperature of the temperature changing chamber is lower than the temperature of the temperature changing gear.
An embodiment of a third aspect of the present invention provides a quick thawing system of an energy-saving refrigerator, including:
the system comprises an acquisition module, a cold storage module and a cold storage module, wherein the acquisition module is used for acquiring the temperature of a variable-temperature gear, the cold storage starting temperature and the cold storage stopping temperature set by a user and acquiring the temperature of a variable-temperature chamber and the temperature of a cold storage chamber in real time;
the judgment module is used for judging whether the temperature change chamber meets a first parameter condition required by quick thawing, wherein the first parameter condition is that the temperature of the temperature change chamber is less than 0 ℃ and the temperature of a temperature change gear is greater than 0 ℃; the second parameter condition is used for judging whether the refrigerating chamber meets a second parameter condition required by refrigerating starting, and the second parameter condition is that the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting temperature; the third parameter condition is used for judging whether the refrigerating chamber meets the third parameter condition required by refrigerating shutdown, and the third parameter condition is that the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature;
the control module is used for stopping refrigerating the temperature-changing chamber when judging that the temperature-changing chamber meets a first parameter condition required by quick thawing; the air door and the variable temperature fan are opened when the refrigerating chamber is judged to meet a second parameter condition required by the refrigerating start-up, and a circulating air path is formed between the refrigerating chamber and the variable temperature chamber through the air supply pipe and the air return pipe; and when the third parameter condition required by the refrigeration shutdown is judged to be met by the refrigerating chamber, the air door and the variable temperature fan are closed, and the refrigerating chamber is stopped from refrigerating.
Compared with the prior art, the energy-saving refrigerator and the quick thawing method and system thereof provided by the embodiment of the invention have the beneficial effects that:
the invention uses the shared evaporator (namely the temperature-changing evaporator) of the temperature-changing chamber and the refrigerating chamber, and simultaneously refrigerates two compartments of the temperature-changing chamber and the refrigerating chamber through the circulating air path under the action of wind pressure generated by the fan; when the temperature-changing chamber is set to be at negative temperature (such as minus 20 ℃), the function of the temperature-changing chamber is the same as that of a freezing chamber of a common air-cooled refrigerator, the requirement of the temperature-changing chamber for freezing food can be met, when the temperature-changing chamber is set to be at positive temperature (such as 5 ℃), the refrigeration of the temperature-changing evaporator can be reduced through the switching control of the electromagnetic valve, and meanwhile, the refrigeration requirements of the refrigerating chamber and the temperature-changing chamber under the positive temperature setting are met; when the temperature of the refrigerating chamber is higher than that of the temperature-changing chamber and the temperature-changing chamber needs to be rapidly heated, the cold energy of the temperature-changing chamber can be preferentially consumed, namely, under the condition that the temperature-changing evaporator does not refrigerate, a refrigerating air door is opened, the temperature-changing fan runs, the temperature of the temperature-changing chamber is rapidly raised by utilizing the air circulation of the temperature-changing chamber and the refrigerating chamber, the cold energy of the temperature-changing chamber also supports refrigeration of the refrigerating chamber, and frozen food in the temperature-changing chamber can be rapidly thawed under the condition that an external heat source (such as a heater) is not depended on. Due to the disturbance effect of the variable temperature fan, the temperature of the variable temperature chamber rises quickly, the temperature uniformity is better, and the control precision is higher.
In conclusion, the temperature-variable chamber can meet the functional use of a refrigerating chamber and a freezing chamber, and meets the diversified requirements of users; when the temperature-changing chamber is set to be at the normal temperature, the heat source of the temperature-changing chamber comes from the self environmental heat load and the heat of the food in the refrigerating chamber, and the external heat sources such as an external heater and the like are not relied on, so that the frozen food in the temperature-changing chamber is quickly thawed, the energy consumption of the whole machine is greatly saved, and the material cost of the product is also saved; when the temperature-variable chamber is switched from negative temperature to positive temperature, the redundant cold energy of the temperature-variable chamber is preferentially used for refrigerating the refrigerating chamber, and the cold source is reasonably utilized; food in the temperature changing chamber is unfrozen through forced convection heat exchange generated by disturbance of the temperature changing fan, so that the heat exchange efficiency is higher, and the unfreezing time is greatly saved; because the refrigeration air is preferentially adopted to circularly heat the food in the temperature changing chamber, the situation that the surface of the food is deteriorated due to overhigh temperature of an external heat source is avoided, the temperature rises steadily, and the loss of food nutrients due to the rupture of food cell walls caused by overhigh temperature rise is avoided; after food in the variable temperature chamber is thawed, the variable temperature evaporator normally works, the temperature of the variable temperature chamber can be always kept in a set range, the phenomenon that the local temperature of the food is too high due to thawing reasons is avoided, food preservation is facilitated, and meanwhile, due to the fact that the humidity is lower when the refrigerating chamber operates stably, inconvenience brought to users due to a large amount of condensed water generated by thawing of the food is avoided.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a front view of an energy saving refrigerator provided by the present invention;
FIG. 2 is a front view of an energy-saving refrigerator according to the present invention in a door-opened state;
FIG. 3 is a rear perspective view of an energy efficient refrigerator provided by the present invention;
FIG. 4 is a flow chart of a quick defrosting method for an energy-saving refrigerator according to the present invention;
fig. 5 and fig. 6 are schematic diagrams illustrating a refrigerant flow direction and energy transfer of the energy-saving refrigerator according to the present invention;
the labels in the figure are: 1. a refrigerating chamber; 2. a temperature-variable chamber; 3. a freezing chamber; 4. a temperature-changing evaporator; 5. a variable temperature fan; 6. a refrigeration evaporator; 7. a freezing fan; 8. an air supply pipe; 9. a return air duct; 10. a damper; 11. a temperature display controller; 12. a temperature-changing defrosting heater; 13. a heater for freezing and defrosting; 14. a hidden handle; 15. turning over the beam; 16. a door shelf; 17. a compressor; 18. drying the filter; 19. an electromagnetic valve; 20. a condenser; 21. and (4) an air return pipe.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1 to 3, the preferred embodiment of the energy-saving refrigerator provided by the present invention includes a refrigerating chamber 1, a temperature-varying chamber 2 and a freezing chamber 3, wherein the temperature-varying chamber 2 is provided with a temperature-varying evaporator 4 and a temperature-varying fan 5, a circulation air path is formed between the refrigerating chamber 1 and the temperature-varying chamber 2 through an air supply pipe 8 and an air return pipe 9, an air door 10 is provided on the air supply pipe 8, when the refrigerating chamber 1 needs to be refrigerated or the temperature-varying chamber 2 needs to be heated and thawed, the temperature-varying fan 5 and the air door 10 are opened, and the circulation air path is conducted to form convection heat transfer, so that the refrigerating chamber 1 is supported to refrigerate by using the cold energy of the temperature-varying chamber 2, and the temperature-varying chamber 2 is supported to be heated by using the heat energy of the refrigerating chamber 1. In this embodiment, the temperature-variable chamber 2 preferably adjusts the temperature in a wide range, and the temperature is adjustable within a range of-20 ℃ to 5 ℃, and functionally, the temperature-variable chamber can be used as a refrigerating chamber 1 and a freezing chamber 3.
In the embodiment of the invention, the temperature-changing chamber 2 and the refrigerating chamber 1 share the evaporator (namely the temperature-changing evaporator 4), and under the action of wind pressure generated by the fan, two compartments of the temperature-changing chamber 2 and the refrigerating chamber 1 are simultaneously refrigerated through the circulating wind path; when the temperature-changing chamber 2 is set to be at negative temperature (such as minus 20 ℃), the temperature-changing chamber 2 has the same function as the freezing chamber 3 of the common air-cooled refrigerator, and can meet the requirement of the temperature-changing chamber 2 for freezing food, and when the temperature-changing chamber 2 is set to be at positive temperature (such as 5 ℃), the refrigeration of the temperature-changing evaporator 4 can be reduced through the switching control of the electromagnetic valve, and the refrigeration requirements of the refrigerating chamber 1 and the temperature-changing chamber 2 under the positive temperature setting can be met; when the temperature of the refrigerating chamber is higher than that of the temperature-changing chamber and the temperature-changing chamber 2 needs to be rapidly raised, the cold energy of the temperature-changing chamber 2 can be preferentially consumed, namely, under the condition that the temperature-changing evaporator 4 does not refrigerate, the air door 10 is opened, the temperature-changing fan 5 operates, the temperature of the temperature-changing chamber 2 is rapidly raised by utilizing the air circulation of the temperature-changing chamber 2 and the refrigerating chamber 1, the cold energy of the temperature-changing chamber 2 also supports refrigeration of the refrigerating chamber 1, and frozen food in the temperature-changing chamber 2 is rapidly thawed under the condition that an external heat source (such as a heater) is not depended on.
It should be further noted that, due to the disturbance effect of the variable temperature fan 5, the temperature of the variable temperature chamber 2 rises quickly, the temperature uniformity is better, and the control precision is higher.
Illustratively, as shown in fig. 5 and 6, the refrigeration system of the refrigerator includes a compressor 17, a dry filter 18, an electromagnetic valve 19, a condenser 20 and an evaporator, and the refrigerant is sent from the compressor according to the flow direction of the refrigerant medium, sequentially passes through the condenser 20, the dry filter 18, the electromagnetic valve 19 and the evaporator through a pipeline, and then returns to the compressor through an air return pipe 21 to form a circulation loop. The two evaporators of the present embodiment are a temperature-changing evaporator 4 disposed on the temperature-changing chamber 2 and a freezing evaporator 6 disposed on the freezing chamber 2, respectively, and the freezing evaporator 6 and the temperature-changing evaporator 4 are disposed in parallel (as shown in fig. 5) or in series (as shown in fig. 6) in the refrigeration system. Such design for temperature-changing room 2 and freezer 3 all can refrigerate alone, and freezer 3 does not participate in sending back the wind of other compartments, thereby avoids the 3 smell that food gived off of freezer to move to walk into walk-in 1 and temperature-changing room 2, influences the user and uses experience. In addition, the freezing chamber 3 is also provided with a freezing fan 7, so that the cold energy generated by the freezing evaporator 6 is uniformly and rapidly diffused to each corner of the freezing chamber 3 through the disturbance action of the freezing fan 7, the temperature uniformity is better, and the control precision is higher.
Illustratively, the temperature swing evaporator 4 and the freezing evaporator 6 are preferably fin evaporators.
Illustratively, the refrigerating chamber 1 is arranged at the upper part of the refrigerator, the temperature changing chamber 2 is at the lower left side of the refrigerator, and the freezing chamber 3 is at the lower right side of the refrigerator. Therefore, the refrigerating chamber 1 is designed into a large chamber, has large heat load, is beneficial to heating food in the temperature changing chamber 2, and simultaneously, the refrigerating capacity of the temperature changing chamber 2 refrigerates the refrigerating chamber 1 to meet the requirement and optimize energy source configuration.
Illustratively, the door body of the energy-saving refrigerator is of a four-door cross split structure, the door body is a plane steel plate door with a hidden handle 14, and the style is simple. The door body corresponding to the refrigerating chamber 1 is a split door, and the left side door body or the right side door body is provided with the turnover beam 15, so that the door body sealing of the refrigerating large chamber is realized. The four doors are respectively provided with a door shelf 16, so that the storage and the taking of the real objects are convenient.
Illustratively, a temperature display controller 11 is provided at the top of the refrigerating chamber 1 for controlling and displaying the temperatures of the refrigerating chamber 1, the warming chamber 2 and the freezing chamber 3.
Illustratively, a temperature-changing defrosting heater 12 is arranged at the bottom of the temperature-changing evaporator 4, and is used for quickly supplementing heat while preventing the temperature-changing evaporator 4 from frosting, and supporting the temperature of the temperature-changing chamber 2 to quickly rise.
Illustratively, the bottom of the freezing evaporator 6 is provided with a freezing defrosting heater 13 for preventing the freezing evaporator 6 from frosting.
As shown in fig. 4, based on the energy-saving refrigerator, an embodiment of the present invention further provides a quick thawing method for an energy-saving refrigerator, which includes the following steps:
responding to a quick thawing instruction input by a user, acquiring the temperature of a variable-temperature gear, the refrigerating starting temperature and the refrigerating shutdown temperature set by the user, and acquiring the temperature of a variable-temperature chamber and the temperature of a refrigerating chamber in real time; wherein, the temperature of the temperature changing chamber and the temperature of the refrigerating chamber are detected by temperature sensors;
when the temperature of the temperature-changing chamber is less than 0 ℃ and the temperature of the temperature-changing gear is more than 0 ℃, the temperature-changing chamber 2 is stopped to be refrigerated;
after the refrigeration of the temperature-changing chamber is stopped, judging whether the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting-up temperature or not, if the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting-up temperature, opening an air door 10 and a temperature-changing fan 5, and forming a circulating air path between the refrigerating chamber 1 and the temperature-changing chamber 2 through an air supply pipe 8 and an air return pipe 9, so that the refrigerating chamber 1 is supported to refrigerate by using the cold energy of the temperature-changing chamber 2, and the temperature of the temperature-changing chamber 2 is supported to heat by using the heat energy of the refrigerating chamber 1;
and judging whether the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, if so, closing the air door 10 and stopping refrigerating the refrigerating chamber 1.
Illustratively, after the cooling of the temperature-changing chamber 2 is stopped, the method further comprises the following steps: and when the temperature of the temperature changing chamber is greater than or equal to 0 ℃ or the temperature of the temperature changing gear is less than or equal to 0 ℃, controlling the temperature changing chamber 2 to refrigerate according to a normal refrigeration mode.
For example, if it is determined that the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, the damper 10 is closed, and the refrigeration of the refrigerating chamber 1 is stopped, specifically: if the temperature of the refrigerating chamber is judged to be less than or equal to the refrigerating shutdown temperature and the temperature of the temperature-changing chamber is judged to be less than the temperature of the temperature-changing gear (namely the temperature-changing chamber still has a temperature-changing requirement), the temperature of the temperature-changing chamber is supported by preferentially utilizing the environmental heat load of the temperature-changing chamber 2, and after a period of time, if the temperature of the temperature-changing chamber is judged to be less than the temperature of the temperature-changing gear, the temperature-changing defrosting heater 12 and the temperature-changing fan 5 are started under the condition that the air door 10 is closed, and the temperature of the temperature-changing chamber 2 is supported.
Illustratively, after the judging whether the refrigerating chamber temperature is less than or equal to the refrigerating shutdown temperature, the method further comprises: if the temperature of the refrigerating chamber is judged to be higher than the refrigerating shutdown temperature and the temperature of the temperature-changing chamber reaches the temperature of the temperature-changing gear (namely the cold quantity of the temperature-changing chamber is not enough to support the refrigerating chamber to be cooled to the refrigerating shutdown temperature), the air door 10 and the temperature-changing fan 5 are continuously opened, the temperature-changing chamber is controlled to refrigerate in a normal refrigeration mode until the temperature of the refrigerating chamber reaches the refrigerating shutdown temperature, the air door 10 is closed, refrigeration of the refrigerating chamber 1 is stopped, and refrigeration of the temperature-changing chamber 2 is stopped when the temperature of the temperature-changing chamber is lower than the temperature of the temperature-changing gear.
In addition, the embodiment of the invention also provides a quick thawing system of the energy-saving refrigerator, which comprises:
the system comprises an acquisition module, a cold storage module and a cold storage module, wherein the acquisition module is used for acquiring the temperature of a variable-temperature gear, the cold storage starting temperature and the cold storage stopping temperature set by a user and acquiring the temperature of a variable-temperature chamber and the temperature of a cold storage chamber in real time;
the judging module is used for judging whether the temperature changing chamber 2 meets a first parameter condition required by quick thawing, wherein the first parameter condition is that the temperature of the temperature changing chamber is less than 0 ℃, and the temperature of a temperature changing gear is greater than 0 ℃; the second parameter condition is used for judging whether the refrigerating chamber 1 meets the second parameter condition required by refrigerating starting, and the second parameter condition is that the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting temperature; and a third parameter condition for judging whether the refrigerating chamber 1 meets the requirement of refrigerating shutdown, wherein the third parameter condition is that the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature;
the control module is used for stopping refrigerating the temperature changing chamber 2 when judging that the temperature changing chamber 2 meets a first parameter condition required by quick thawing; the refrigerating system is used for opening the air door 10 and the variable temperature fan 5 when judging that the refrigerating chamber 1 meets a second parameter condition required by refrigerating and starting, and forming a circulating air path between the refrigerating chamber 1 and the variable temperature chamber 2 through the air supply pipe 8 and the air return pipe 9, so that the refrigerating chamber 1 is supported to refrigerate by using the cold energy of the variable temperature chamber 2, and the temperature of the variable temperature chamber 2 is supported to heat by using the heat of the refrigerating chamber 1; and when the refrigerating chamber 1 is judged to meet a third parameter condition required by refrigerating shutdown, the air door 10 and the variable temperature fan 5 are closed, and refrigerating of the refrigerating chamber 1 is stopped.
In summary, compared with the prior art, the energy-saving refrigerator and the quick thawing method and system thereof provided by the embodiment of the invention have the following advantages:
(1) the temperature-variable chamber can meet the functional use of a refrigerating chamber and a freezing chamber, and meets the diversified requirements of users;
(2) when the temperature-variable chamber is set to be at the normal temperature, the heat source of the temperature-variable chamber comes from the self environmental heat load and the heat of the food in the refrigerating chamber, and the external heat sources such as an external heater and the like are not relied on, so that the frozen food in the temperature-variable chamber is quickly thawed, the energy consumption of the whole machine is greatly saved, and the material cost of the product is also saved;
(3) when the temperature-variable chamber is switched from negative temperature to positive temperature, the redundant cold energy of the temperature-variable chamber is preferentially used for refrigerating the refrigerating chamber, and the cold source is reasonably utilized;
(4) food in the temperature changing chamber is unfrozen through forced convection heat exchange generated by disturbance of the temperature changing fan, so that the heat exchange efficiency is higher, and the unfreezing time is greatly saved;
(5) because the refrigeration air is preferentially adopted to circularly heat the food in the temperature changing chamber, the situation that the surface of the food is deteriorated due to overhigh temperature of an external heat source is avoided, the temperature rises steadily, and the loss of food nutrients due to the rupture of food cell walls caused by overhigh temperature rise is avoided;
(6) after food in the variable temperature chamber is thawed, the variable temperature evaporator normally works, the temperature of the variable temperature chamber can be always kept in a set range, the phenomenon that the local temperature of the food is too high due to thawing reasons is avoided, food preservation is facilitated, and meanwhile, due to the fact that the humidity is lower when the refrigerating chamber operates stably, inconvenience brought to users due to a large amount of condensed water generated by thawing of the food is avoided.
The above description is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and substitutions can be made without departing from the technical principle of the present invention, and these modifications and substitutions should also be regarded as the protection scope of the present invention.

Claims (3)

1. A quick thawing method of an energy-saving refrigerator comprises a refrigerating chamber and a temperature-changing chamber, wherein the temperature-changing chamber is provided with a temperature-changing evaporator and a temperature-changing fan, a circulating air path is formed between the refrigerating chamber and the temperature-changing chamber through an air supply pipe and an air return pipe, and the air supply pipe is provided with an air door; the quick thawing method of the energy-saving refrigerator is characterized by comprising the following steps of:
responding to a quick thawing instruction input by a user, acquiring the temperature of a variable-temperature gear, the refrigerating starting temperature and the refrigerating shutdown temperature set by the user, and acquiring the temperature of a variable-temperature chamber and the temperature of a refrigerating chamber in real time;
when the temperature of the temperature-changing chamber is less than 0 ℃ and the temperature of the temperature-changing gear is more than 0 ℃, stopping refrigerating the temperature-changing chamber;
after the variable temperature chamber is stopped from being refrigerated, judging whether the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting temperature, if so, opening an air door and a variable temperature fan, and forming a circulating air path between the refrigerating chamber and the variable temperature chamber through an air supply pipe and a return air pipe;
judging whether the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, if so, closing the air door, stopping refrigerating the refrigerating chamber, and if the temperature of the temperature-changing chamber is less than the temperature of the temperature-changing gear, after a period of time, and if the temperature of the temperature-changing chamber is still less than the temperature of the temperature-changing gear, opening the temperature-changing defrosting heater and the temperature-changing fan under the condition that the air door is closed; if the temperature of the refrigerating chamber is judged to be higher than the refrigerating shutdown temperature and the temperature of the temperature changing chamber reaches the temperature of the temperature changing gear, the air door and the temperature changing fan are continuously opened, the refrigerating of the temperature changing chamber is controlled according to a normal refrigerating mode until the temperature of the refrigerating chamber reaches the refrigerating shutdown temperature, the air door is closed, the refrigerating of the refrigerating chamber is stopped, and the refrigerating of the temperature changing chamber is stopped when the temperature of the temperature changing chamber is lower than the temperature of the temperature changing gear.
2. The quick thawing method for an energy-saving refrigerator as claimed in claim 1, further comprising, after said stopping of cooling said variable temperature compartment:
and when the temperature of the temperature changing chamber is greater than or equal to 0 ℃, or the temperature of the temperature changing gear is less than or equal to 0 ℃, controlling the temperature changing chamber to refrigerate according to a normal refrigeration mode.
3. A system for a quick thawing method of an energy saving refrigerator according to claim 1 or 2, comprising:
the system comprises an acquisition module, a cold storage module and a cold storage module, wherein the acquisition module is used for acquiring the temperature of a variable-temperature gear, the cold storage starting temperature and the cold storage stopping temperature set by a user and acquiring the temperature of a variable-temperature chamber and the temperature of a cold storage chamber in real time;
the judgment module is used for judging whether the temperature change chamber meets a first parameter condition required by quick thawing, wherein the first parameter condition is that the temperature of the temperature change chamber is less than 0 ℃ and the temperature of a temperature change gear is greater than 0 ℃; the second parameter condition is used for judging whether the refrigerating chamber meets a second parameter condition required by refrigerating starting, and the second parameter condition is that the temperature of the refrigerating chamber is greater than or equal to the refrigerating starting temperature; and a third parameter condition for judging whether the refrigerating chamber meets the requirements of refrigerating shutdown, wherein the third parameter condition comprises the following 3 types: one of the third parameter conditions is that the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, the second parameter condition is that the temperature of the refrigerating chamber is less than or equal to the refrigerating shutdown temperature, the temperature of the temperature-changing chamber is less than the temperature of the temperature-changing gear, and the third parameter condition is that the temperature of the refrigerating chamber is greater than the refrigerating shutdown temperature and the temperature of the temperature-changing chamber reaches the temperature of the temperature-changing gear;
the control module is used for stopping refrigerating the temperature-changing chamber when judging that the temperature-changing chamber meets a first parameter condition required by quick thawing; the air door and the variable temperature fan are opened when the refrigerating chamber is judged to meet a second parameter condition required by the refrigerating start-up, and a circulating air path is formed between the refrigerating chamber and the variable temperature chamber through the air supply pipe and the air return pipe; the air door is closed to stop refrigerating the refrigerating chamber when the refrigerating chamber is judged to meet one of third parameter conditions required by refrigerating shutdown; the air door is closed when the refrigerating chamber is judged to meet the second parameter condition required by the refrigerating shutdown, the refrigerating chamber is stopped from being refrigerated, and after a period of time, if the temperature of the temperature-changing chamber is judged to be still lower than the temperature of the temperature-changing gear, the temperature-changing defrosting heater and the temperature-changing fan are started under the condition that the air door is closed; and when the third parameter condition required by the refrigeration shutdown is judged to be met by the refrigerating chamber, the air door and the variable temperature fan are continuously opened, the variable temperature chamber is controlled to refrigerate in a normal refrigeration mode until the temperature of the refrigerating chamber reaches the refrigeration shutdown temperature, the air door is closed, the refrigerating chamber is stopped from refrigerating, and the variable temperature chamber is stopped from refrigerating when the temperature of the variable temperature chamber is lower than the temperature of a variable temperature gear.
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CN112179017B (en) * 2020-09-30 2021-06-29 珠海格力电器股份有限公司 Refrigeration equipment with unfreezing function and control method thereof
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