CN110906658A - Food non-freezing storage control method and refrigerator - Google Patents
Food non-freezing storage control method and refrigerator Download PDFInfo
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- CN110906658A CN110906658A CN201910960519.7A CN201910960519A CN110906658A CN 110906658 A CN110906658 A CN 110906658A CN 201910960519 A CN201910960519 A CN 201910960519A CN 110906658 A CN110906658 A CN 110906658A
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- 238000007710 freezing Methods 0.000 title claims abstract description 73
- 230000008014 freezing Effects 0.000 title claims abstract description 72
- 238000000034 method Methods 0.000 title claims abstract description 47
- 235000013305 food Nutrition 0.000 title claims abstract description 37
- 238000010438 heat treatment Methods 0.000 claims abstract description 31
- 238000005057 refrigeration Methods 0.000 claims description 74
- 238000001816 cooling Methods 0.000 claims description 11
- 235000013372 meat Nutrition 0.000 abstract description 14
- 230000000630 rising effect Effects 0.000 abstract description 5
- 230000007774 longterm Effects 0.000 abstract description 3
- 230000001276 controlling effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 6
- 238000004781 supercooling Methods 0.000 description 6
- 238000004321 preservation Methods 0.000 description 4
- 241000251468 Actinopterygii Species 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000001105 regulatory effect Effects 0.000 description 3
- 230000001174 ascending effect Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005192 partition Methods 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000003252 repetitive effect Effects 0.000 description 1
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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
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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
-
- 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
- F25D2400/00—General features of, or devices for refrigerators, cold rooms, ice-boxes, or for cooling or freezing apparatus not covered by any other subclass
- F25D2400/36—Visual displays
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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
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- Combustion & Propulsion (AREA)
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- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a method for controlling the storage of food in a refrigerator without freezing and a refrigerator. During temperature rising, the freezing rate can be reduced by means of auxiliary heating of the heater. Prevent the food from freezing and keep the food in a tender frozen state. The invention can keep food from being frozen and stored, and avoids the problem of freezing in long-term low-temperature storage caused by single temperature control. The invention is simple to realize and does not need complex control. The refrigerator provided by the invention can effectively solve the problem that consumers can keep fresh for short-term storage such as meat.
Description
Technical Field
The invention relates to a control method for non-freezing storage of food in a refrigeration system and the refrigeration system, in particular to a control method for non-freezing storage of food in a refrigerator and the refrigerator.
Background
With the improvement of living standard, refrigeration systems (devices) such as refrigerators, freezers and the like are more and more widely applied to the life of people. Taking a common refrigeration system refrigerator as an example, with the rapid development of an air-cooled refrigerator and the strong requirements of consumers on the functional partitions of the refrigerator, the multifunctional functions of the refrigerator are rapidly developed. Generally, the food storage temperature in the refrigerator is 2 kinds as follows:
1. the fixed single temperature control, such as the accurate control of the temperature and humidity of fruits and vegetables in a refrigerating chamber of a refrigerator, the soft freezing of meat, the zero-temperature preservation and the like, can achieve the effect of preserving the correspondingly stored food by utilizing the single fixed temperature.
2. The non-fixed single temperature control adopts the temperature control of alternately operating at high temperature and low temperature, so that the food is stored at a lower temperature level, and the food preservation period is prolonged.
However, the problem of freezing food comes with the constant freezing of meat, which becomes harder and harder, at a single temperature, such as soft freezing at-3 ℃. The control program with alternating high and low temperatures has the risk of freezing when the low temperature stage is too long.
Disclosure of Invention
In view of the above, the present invention provides a method for controlling the storage of food in a refrigeration system (refrigerator) without freezing and a refrigeration system. The invention controls the temperature of the chamber periodically to make the temperature of the chamber in a dynamic lifting state. In the temperature rising process, the temperature is raised in an auxiliary heating mode, so that the food is prevented from being frozen and is in a tender frozen state.
According to the invention, through the periodic control of the temperature, foods such as meat, fish and the like can be stored without freezing. The invention can control the food not to be frozen near the freezing point. The method is characterized in that after the freezing function is started, the freezing function is divided into a heating stage and a cooling stage, wherein the heating stage starts to heat to a certain preset target temperature, and the cooling stage operates to a preset target temperature for a fixed time length to cool. The heater of the soft freezing functional area is started in the temperature rising stage, the freezing speed is reduced, the freezing speed of the food is reduced, the food can be kept without freezing, and the freezing damage of the food caused by freezing ice crystals is reduced.
Specifically, the method comprises the following steps: a refrigeration system food unfreezing storage control method comprises the following steps:
s01: starting heating by a heater of a compartment of the refrigeration system, adjusting the temperature of the compartment of the refrigeration system to operate according to a first preset target temperature T0, detecting the real-time temperature of the compartment, stopping heating by the heater of the compartment of the refrigeration system when the detected real-time temperature T > of the compartment is T0, and executing the next step S02;
s02: and (4) adjusting the compartment of the refrigeration system to operate according to the second preset target temperature T1, and executing the step S01 after the operation time reaches the preset time T1, wherein T0> T1.
Preferably, step S01 is preceded by the step of: S01A: the user selects the freeze-tender function or the user selects the freeze-free storage function.
Preferably, the operation at the first preset target temperature T0 in the step S01 is a heating operation; the operation according to the second preset target temperature T1 in the step S02 is a cooling operation, and the steps S01 and S02 are alternate cycle operations.
Preferably, T0 is more than or equal to 0 ℃, and/or-40 is more than or equal to T1 and less than 0 ℃.
The invention also provides a control method for unfreezing storage of food in a refrigerating system, which comprises the following steps:
f01: adjusting the compartment of the refrigeration system to operate according to a second preset target temperature T1, and executing a next step F02 after the operation time reaches a preset time T1;
f02: the method comprises the steps of starting heating of a heater of a compartment of the refrigeration system, adjusting the temperature of the compartment of the refrigeration system to operate according to a first preset target temperature T0, detecting the real-time temperature of the compartment, stopping heating of the heater of the compartment of the refrigeration system when the detected real-time temperature > of the compartment is T0, and executing step F01, wherein T0> T1.
Preferably, step F01 is preceded by the steps of: F01A: the user selects the freeze-tender function or the user selects the freeze-free storage function.
Preferably, the operation according to the second preset target temperature T1 in the step F01 is a cooling operation; the operation according to the first preset target temperature T0 in the step F02 is a heating operation, and the steps F01 and F02 are alternate cycle operations.
Preferably, T0 is more than or equal to 0 ℃, and/or-40 is more than or equal to T1 and less than 0 ℃.
The invention also provides a control system of the refrigerating system, and the control system is used for executing any control method of the invention.
Preferably, the control system comprises a control unit, a temperature adjusting device, a temperature sensor and a heater, wherein the temperature adjusting device is used for adjusting the temperature of the refrigeration system, the temperature sensor is used for detecting the temperature of a compartment of the refrigeration system, the heater is used for providing heat for the compartment, and the control unit is used for controlling the operation of the refrigeration system.
The invention also provides a refrigerating system, which adopts any one of the control methods; or the refrigeration system is provided with the control system of the invention.
Preferably, the refrigeration system is a refrigerator.
Preferably, the refrigeration system includes a refrigerating compartment, a freezing compartment, and a functional freezer compartment.
Preferably, the refrigeration system is provided with a functional compartment for freezing, the compartment forming the functional compartment for freezing.
The invention can keep food from being frozen and stored, and avoids the problem of freezing in long-term low-temperature storage caused by single temperature control. The invention is simple to realize and does not need complex control. The refrigerator provided by the invention can effectively solve the problem that consumers can keep fresh for short-term storage such as meat.
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 disclosure.
Drawings
The above and other objects, features and advantages of the present disclosure will become more apparent by describing in detail exemplary embodiments thereof with reference to the attached drawings. The drawings described below are merely some embodiments of the present disclosure, and other drawings may be derived from those drawings by those of ordinary skill in the art without inventive effort.
FIG. 1 is a schematic diagram of a method for controlling the storage of food products in a refrigeration system of the present invention without freezing.
Fig. 2 is a second schematic diagram of the method for controlling the storage of food products in a refrigeration system according to the present invention without freezing.
Figure 3 is a schematic diagram of the control system for the refrigeration system of the present invention.
Figure 4 is a schematic diagram of the operating principle of the refrigeration system of the present invention.
Fig. 5 is a schematic diagram of the refrigeration system (refrigerator) of the present invention.
Fig. 6 is a schematic view of the functional compartment for freezing tender of the present invention.
Wherein: 1-refrigerating chamber, 2-soft freezing functional chamber, 3-freezing chamber, 21-temperature sensor, 22-compartment and 23-heater.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar parts in the drawings, and thus, a repetitive description thereof will be omitted.
Furthermore, the described features, structures, or characteristics may be combined in any suitable manner in one or more embodiments. In the following description, numerous specific details are provided to give a thorough understanding of embodiments of the disclosure. One skilled in the relevant art will recognize, however, that the subject matter of the present disclosure can be practiced without one or more of the specific details, or with other methods, components, devices, steps, and so forth. In other instances, well-known methods, devices, implementations, or operations have not been shown or described in detail to avoid obscuring aspects of the disclosure.
The block diagrams shown in the figures are functional entities only and do not necessarily correspond to physically separate entities. I.e. these functional entities may be implemented in the form of software, or in one or more hardware modules or integrated circuits, or in different networks and/or processor means and/or microcontroller means.
The flow charts shown in the drawings are merely illustrative and do not necessarily include all of the contents and operations/steps, nor do they necessarily have to be performed in the order described. For example, some operations/steps may be decomposed, and some operations/steps may be combined or partially combined, so that the actual execution sequence may be changed according to the actual situation.
It will be understood that, although the terms first, second, third, etc. may be used herein to describe various structures, these structures should not be limited by these terms. These terms are used to distinguish one structure from another structure. Thus, a first structure discussed below may be termed a second structure without departing from the teachings of the disclosed concept. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
It is to be understood by those skilled in the art that the drawings are merely schematic representations of exemplary embodiments, and that the blocks or processes shown in the drawings are not necessarily required to practice the present disclosure and are, therefore, not intended to limit the scope of the present disclosure.
The following detailed description of embodiments of the invention is provided in conjunction with the accompanying figures 1-6:
as shown in fig. 1, a method for controlling the non-freezing storage of a food in a refrigeration system comprises the following steps:
s01: starting heating by the heater 23 of the compartment 22 of the refrigeration system, adjusting the temperature of the compartment 22 of the refrigeration system to operate according to a first preset target temperature T0, detecting the real-time temperature of the compartment 22, stopping heating by the heater 23 of the compartment 22 of the refrigeration system when the detected real-time temperature T > of the compartment 22 is T0, and executing the next step S02;
s02: and adjusting the compartment 22 of the refrigeration system to operate according to the second preset target temperature T1, and executing the step S01 after the operation time reaches the preset time T1, wherein T0> T1.
Since the present invention is a cycle control and the initial temperature of the compartment 22 is not determined immediately after the start of operation, S01: the heater 23 of the compartment 22 of the refrigeration system starts heating, the operation is controlled to the first preset target temperature T0, after the first preset target temperature T0 is reached, the heating of the heater 23 of the compartment 22 of the refrigeration system is stopped, S02 is executed, the temperature reduction operation is performed, according to the condition of the preset time length, the temperature of the compartment may reach T1 or be slightly higher than T1, and then the operation returns to S01 for circulation. The process thereafter is controlled in ascending and descending cycles between T0 and T1 (slightly above T1) to maintain the stored items in a non-frozen state. That is, during the cycle, S01: the heater 23 of the refrigeration system compartment 22 starts heating, the temperature of the refrigeration system compartment 22 is operated according to a first preset target temperature T0, and as it is circulated from S02, the temperature of the compartment 22 is lower than T0, that is, the temperature of the compartment 22 is raised to T0 in S01, the heater 23 of the compartment 22 stops heating, and then the operation is performed to S02, the temperature is reduced, and according to the condition of a preset duration, the temperature of the compartment 22 may reach T1 or slightly higher than T1, and then the operation is returned to S01 for circulation.
Wherein the adjustment of the temperature of the compartment 22 of the refrigeration system is performed according to a first preset target temperature T0: for example, when the refrigerator is set to operate according to the preset temperature, the control system is preset with a control mode, such as how to control the on/off of the compressor, or the rotating speed of the variable frequency compressor. Alternatively, the size of the air inlet of the compartment 22 may be adjusted, for example, the variable temperature compartment 22 often has an air inlet and an air return, and the temperature can be controlled by opening and closing the air inlet or adjusting the size of the air inlet through an air door.
The preset duration t is set in a manner of preventing the risk of freezing in a low-temperature stage. Which is related to the kind of food and the second preset target temperature T1, may be obtained empirically or experimentally, such as when storing a particular item, the preset time period T may be set to within 3 minutes if it is found experimentally that there is no risk of freezing when the preset time period is less than 3 minutes.
Preferably, step S01 is preceded by the step of: S01A: the user selects the soft freeze function or the unfrozen store function.
When the user selects the freezing function or the non-freezing storage function, the temperature of the compartment 22 of the refrigeration system is adjusted to operate according to a first preset target temperature T0, the real-time temperature of the compartment 22 is detected, the temperature is detected by the temperature sensor 21 or the temperature sensing bulb, and when the detected real-time temperature > of the compartment 22 is T0, the next step S02 is executed.
Preferably, the operation at the first preset target temperature T0 in the step S01 is a heating operation; the operation according to the second preset target temperature T1 in the step S02 is a cooling operation, and the steps S01 and S02 are alternate cycle operations.
Preferably, T0 is more than or equal to 0 ℃, and/or-40 is more than or equal to T1 and less than 0 ℃.
The first preset target temperature T0 and the second preset target temperature T1 may be set by those skilled in the art according to actual situations, such as according to the type of food to be stored and the storage requirements. The T0 and T1 values can also be determined experimentally, such as storing meat, fish, etc., by testing different T0 and T1 values and by the effect of storage. When meat is stored, T0 can be set to be 0-3 ℃, T1 can be set to be-5-2 ℃, the time duration can be set to be 2-5 minutes, specifically, the time duration can be specifically set according to the requirements of users on tenderness and freezing, and of course, the time duration can also be set in the control unit, and when meat is stored, T0, T1 and T values are preset by the control unit. Fish and the like are set to values different from or the same as those of meat.
The invention also provides a control method for unfreezing storage of food in a refrigerating system, which is characterized by comprising the following steps: the method comprises the following steps: f01: adjusting the compartment 22 of the refrigeration system to operate according to a second preset target temperature T1, and executing a next step F02 after the operation time reaches a preset time T1;
f02: the heater 23 of the compartment 22 of the refrigeration system starts heating, the temperature of the compartment 22 of the refrigeration system is adjusted to operate according to the first preset target temperature T0, the real-time temperature of the compartment 22 is detected, when the detected real-time temperature T > of the compartment 22 is T0, the heater 23 of the compartment 22 of the refrigeration system stops heating, and step F01 is executed, wherein T0> T1.
The invention is a cycle control, when the operation is started, because the initial temperature of the compartment 22 is not determined, F01 control is operated to a second preset target temperature T1, after the operation time T1, F02 is executed, the heater 23 starts heating, when the temperature of the compartment reaches T0, the heater 23 stops heating, and then returns to F01, and the process thereafter, namely the rising and falling cycle control between T0-T1 (slightly higher than T1), namely the rising and falling cycle control between T0-T1, thereby keeping the stored articles in a non-freezing state. That is, during the cycle, F01: the refrigeration system compartment 22 is operated at a second preset target temperature T1, and since the refrigeration system compartment 22 is circulated from F02, the temperature of the compartment 22 is greater than T1, that is, in S01, the temperature of the compartment 22 is decreased to T1 or slightly higher than T1, depending on the preset duration, the refrigeration system compartment 22 enters F02, the heater 23 of the compartment 22 starts to heat, the temperature is increased, and when the temperature of the compartment 22 reaches T0, the heater 23 of the compartment 22 stops heating, and then the refrigeration system compartment 22 returns to F01 circulation operation.
The control system presets a control mode, such as how to control the start and stop of the compressor, or the rotating speed of the variable frequency compressor, and the like, when the temperature of the compartment 22 of the refrigeration system is adjusted to operate according to the second preset target temperature T1, such as a refrigerator and the like, and the refrigerator and the like are set to operate according to the preset temperature. Alternatively, the size of the air inlet of the compartment 22 may be adjusted, for example, the variable temperature compartment 22 often has an air inlet and an air return, and the temperature can be controlled by opening and closing the air inlet or adjusting the size of the air inlet through an air door.
Preferably, step F01 is preceded by the steps of: F01A: the user selects the soft freeze function or the unfrozen store function.
Preferably, the operation according to the second preset target temperature T1 in the step F01 is a cooling operation; the operation according to the first preset target temperature T0 in the step F02 is a heating operation, and the steps F01 and F02 are alternate cycle operations.
Preferably, T0 is more than or equal to 0 ℃, and/or-40 is more than or equal to T1 and less than 0 ℃.
The first preset target temperature T0 and the second preset target temperature T1 may be set by those skilled in the art according to actual situations, such as according to the type of food to be stored and the storage requirements. The T0 and T1 values can also be determined experimentally, such as storing meat, fish, etc., by testing different T0 and T1 values and by the effect of storage. When meat is stored, T0 can be set to be 0-3 ℃, T1 can be set to be-5-2 ℃, the time duration can be set to be 2-5 minutes, specifically, the time duration can be specifically set according to the requirements of users on tenderness and freezing, and of course, the time duration can also be set in the control unit, and when meat is stored, T0, T1 and T values are preset by the control unit. Fish and the like are set to values different from or the same as those of meat.
The invention also provides a control system of the refrigerating system, which comprises a control unit, a temperature adjusting device, a temperature sensor 21, a display unit, a heater 23, wherein the control unit is in control connection with the temperature adjusting device, the temperature sensor 21, the display unit, the heater 23 and the compressor, and the control system is used for executing any control method of the invention.
Preferably, the control system comprises a control unit, a temperature regulating device, a temperature sensor 21 and a heater, wherein the temperature regulating device is used for regulating the temperature of the refrigeration system, the temperature sensor 21 is used for detecting the temperature of a compartment 22 of the refrigeration system, the heater 23 is used for providing heat for the compartment 22, and the control unit is used for controlling the operation of the refrigeration system.
The invention also provides a refrigerating system, which adopts the control method; or the refrigeration system is provided with the control system of any one of the invention.
Preferably, the refrigeration system is a refrigerator.
Preferably, the refrigeration system is provided with a functional compartment for freezing, the compartment forming the functional compartment for freezing.
Preferably, the present invention further includes, in step S01 or F02: when the detected current temperature T of the compartment 22>When T0, the method operates as follows: when the temperature reaches a first starting temperature point TON1When the freezing temperature is higher than the set temperature, the air door of the supercooling preservation chamber (the freezing function chamber) is opened; when the supercooling keeping chamber temperature reaches the first stopping temperature point TOFF1When the temperature is higher than the preset temperature, the air door of the supercooling keeping chamber is closed; t isON1＝T0+TB1/2,TOFF1＝TON1–TB2/2；TB1And TB2For a known parameter, TB1Finger compressorThe floating temperature of a starting point of the instant freezing chamber in the starting process; t isB2Indicating the start-stop temperature difference of the instant freezing chamber, wherein T1 is a preset temperature value; 0 < TB1,TB2Less than or equal to 2 ℃. After a period of time ty, step S02 or F02 is performed.
In step S02 or F01, the method further includes: when the temperature of the overcooling preservation chamber (the soft freezing functional chamber) reaches a second starting temperature point TON2When the temperature is higher than the preset temperature, the air door of the supercooling preservation chamber is opened; when the supercooling keeping chamber temperature reaches the second stopping temperature point TOFF2When the temperature is higher than the preset temperature, the air door of the supercooling keeping chamber is closed; t isON2＝T1+TB1/2,TOFF2＝TON2–TB2/2；TB1And TB2For a known parameter, TB1Indicating the floating temperature of a starting point of an instant freezing chamber in the starting process of the compressor; t isB2Indicating the start-stop temperature difference of the instant freezing chamber, wherein T1 is a preset temperature value; 0 < TB1,TB2≤2℃。
The principles and processes of the present invention are further described below: as shown in fig. 1-3, a control method for preserving food in a refrigeration system without freezing and a refrigerator, the control system comprises: the temperature control device comprises a control unit, a display, a temperature sensor 21 and a temperature adjusting device, wherein the control unit is in control connection with the compressor, the display, the temperature sensor 21 and the temperature adjusting device. The display is provided with a function selecting button for freezing or not freezing food.
As shown in fig. 4, the refrigeration system includes a refrigeration circuit composed of a compressor, a condenser, a condensation-preventing pipe, a drying filter, a freezing evaporator, a gas return pipe, and the like, and the gas return heat exchange section is formed as a capillary tube for better heat exchange.
As shown in fig. 1, when the user selects the freezing and storing function, the following steps are performed:
S01A, selecting the function of freezing or not freezing by the user;
s01: the control unit controls the heater 23 of the soft freezing functional area (compartment) to start working, the temperature adjusting device adjusts the refrigerating system compartment 22 to operate according to a first preset target temperature (first preset temperature) T0, the temperature sensor 21 immediately detects the real-time temperature (current temperature) of the soft freezing functional area (compartment), and when the real-time temperature is detected to be greater than or equal to T0, the heater 23 stops working and the step S02 is executed;
s02: the temperature adjusting device adjusts the refrigeration system (compressor) to start to operate (cool) according to a second preset target temperature (second preset temperature) T1, and after the operation (cooling) duration reaches a preset duration T1, the step S01 is started, wherein T0> T1, and the control is performed periodically.
Wherein T0 is more than or equal to 0 ℃, and T1 is more than or equal to-40 ℃ and less than 0 ℃.
Wherein the heater 23 may be located at the bottom of the functional zone (compartment) for freezing.
As shown in fig. 2, when the user selects the freezing function or the non-freezing storage function, the following steps are performed:
F01A; the user selects the soft freezing function or the unfreezing storage function;
f01: the temperature adjusting device adjusts the refrigerating system (compressor) compartment 22 to start to operate (cool) according to the second preset target temperature T1, and after the operation (cooling) duration reaches the preset duration T1, the step F02 is started to be executed after the operation (cooling) duration is ended;
f02: the control unit controls the heater 23 of the soft freezing functional area (compartment) to start working, the temperature adjusting device adjusts the refrigerating system compartment 22 to operate according to the preset temperature T0, the temperature sensor 21 detects the real-time temperature of the soft freezing functional area (compartment) immediately, when the real-time temperature is detected to be larger than or equal to T0, the heater 23 stops working, F01 is executed, wherein T0 is larger than T1, and the control is carried out periodically.
Wherein T0 is more than or equal to 0 ℃, and T1 is more than or equal to-40 ℃ and less than 0 ℃.
As shown in fig. 5 and 6, the structure of the refrigerating system is schematically shown, including a refrigerating chamber 1, a freezing chamber 3 and a freezing function chamber 2. The functional chamber 2 includes a compartment 22 and a temperature sensor 21.
The invention relates to a method for controlling the storage of foods in a refrigerator without freezing and a refrigerator, which leads the temperature of a compartment 22 to be in a dynamic lifting state by periodically controlling the temperature rise and the temperature fall of the compartment 22 and leads the auxiliary heating of a heater 23 in the temperature rise process. Prevent the food from freezing and keep the food in a tender frozen state.
Has the advantages that:
the invention has at least the following beneficial effects:
1. the invention can keep food from being frozen and stored, and avoids the problem of freezing in long-term low-temperature storage caused by single temperature control.
2. The invention is simple to realize and does not need complex control.
3. The refrigerator provided by the invention can effectively solve the problem that consumers can keep meat and the like fresh in a short-term storage mode.
4. The invention can reduce the freezing speed by the auxiliary heating mode of the heater 23 when the temperature is raised.
Exemplary embodiments of the present disclosure are specifically illustrated and described above. It is to be understood that the present disclosure is not limited to the precise arrangements, instrumentalities, or instrumentalities described herein; on the contrary, the disclosure is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims.
Claims (13)
1. A refrigeration system food unfreezing storage control method is characterized by comprising the following steps: the method comprises the following steps:
s01: starting heating by a heater (23) of a compartment (22) of the refrigeration system, adjusting the temperature of the compartment (22) of the refrigeration system to operate according to a first preset target temperature T0, detecting the real-time temperature of the compartment (22), stopping heating by the heater (23) of the compartment (22) of the refrigeration system when the detected real-time temperature T > of the compartment (22) is T0, and executing the next step S02;
s02: and (3) adjusting the compartment (22) of the refrigeration system to operate according to the second preset target temperature T1, and executing the step S01 after the operation time reaches the preset time T1, wherein T0> T1.
2. The control method according to claim 1, characterized in that: step S01 is preceded by the step of: S01A: the user selects the freeze-tender function or the user selects the freeze-free storage function.
3. The control method according to any one of claims 1 and 2, characterized in that: the operation according to the first preset target temperature T0 in the step S01 is a heating operation; the operation according to the second preset target temperature T1 in the step S02 is a cooling operation, and the steps S01 and S02 are alternate cycle operations.
4. The control method according to any one of claims 1 and 2, characterized in that: t0 is more than or equal to 0 ℃, and/or T1 is more than or equal to-40 and less than 0 ℃.
5. A refrigeration system food unfreezing storage control method is characterized by comprising the following steps: the method comprises the following steps:
f01: adjusting the operation of the compartment (22) of the refrigeration system according to a second preset target temperature T1, and executing a next step F02 after the operation time reaches a preset time T1;
f02: the method comprises the steps of starting heating by a heater (23) of a compartment (22) of the refrigeration system, adjusting the temperature of the compartment (22) of the refrigeration system to operate according to a first preset target temperature T0, detecting the real-time temperature of the compartment (22), stopping heating by the heater (23) of the compartment (22) of the refrigeration system when the detected real-time temperature T > of the compartment (22) is T0, and executing step F01, wherein T0> T1.
6. The control method according to claim 5, characterized in that: step F01 is preceded by the step of: F01A: the user selects the freeze-tender function or the user selects the freeze-free storage function.
7. The control method according to any one of claims 5 and 6, characterized in that: the operation according to the second preset target temperature T1 in the step F01 is cooling operation; the operation according to the first preset target temperature T0 in the step F02 is a heating operation, and the steps F01 and F02 are alternate cycle operations.
8. The control method according to any one of claims 5 and 6, characterized in that: t0 is more than or equal to 0 ℃, and/or T1 is more than or equal to-40 and less than 0 ℃.
9. A control system for a refrigeration system, characterized by: a control system for performing the control method of any one of claims 1 to 8.
10. The control system of claim 9, wherein: the control system comprises a control unit, a temperature adjusting device, a temperature sensor (21) and a heater (23), wherein the temperature adjusting device is used for adjusting the temperature of the refrigerating system, the temperature sensor (21) is used for detecting the temperature of a compartment (22) of the refrigerating system, the heater (23) is used for providing heat for the compartment (22), and the control unit is used for controlling the operation of the refrigerating system.
11. A refrigeration system, characterized by: the refrigeration system adopts the control method of any one of claims 1 to 8; or the refrigeration system has a control system as claimed in any of claims 9, 10.
12. The refrigeration system of claim 11, wherein: the refrigeration system is a refrigerator.
13. The refrigeration system according to any one of claims 11 and 12, wherein: refrigerating system is provided with one and is tender freezing function room (2), compartment (22) form tender function room (2) of freezing.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910960519.7A CN110906658A (en) | 2019-10-10 | 2019-10-10 | Food non-freezing storage control method and refrigerator |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910960519.7A CN110906658A (en) | 2019-10-10 | 2019-10-10 | Food non-freezing storage control method and refrigerator |
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| CN110906658A true CN110906658A (en) | 2020-03-24 |
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| CN201910960519.7A Withdrawn CN110906658A (en) | 2019-10-10 | 2019-10-10 | Food non-freezing storage control method and refrigerator |
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