CN110940146A - Storage method with food non-freezing function and refrigerator - Google Patents
Storage method with food non-freezing function and refrigerator Download PDFInfo
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- CN110940146A CN110940146A CN201910959956.7A CN201910959956A CN110940146A CN 110940146 A CN110940146 A CN 110940146A CN 201910959956 A CN201910959956 A CN 201910959956A CN 110940146 A CN110940146 A CN 110940146A
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- 238000000034 method Methods 0.000 title claims abstract description 74
- 235000013305 food Nutrition 0.000 title claims abstract description 61
- 238000007710 freezing Methods 0.000 title claims abstract description 55
- 230000008014 freezing Effects 0.000 title claims abstract description 55
- 238000001816 cooling Methods 0.000 claims abstract description 26
- 230000000630 rising effect Effects 0.000 claims abstract description 19
- 230000008569 process Effects 0.000 claims abstract description 15
- 238000010792 warming Methods 0.000 claims abstract description 8
- 230000009467 reduction Effects 0.000 claims abstract description 7
- 238000010438 heat treatment Methods 0.000 claims description 79
- 230000004044 response Effects 0.000 claims description 4
- 230000000737 periodic effect Effects 0.000 abstract description 3
- 238000005057 refrigeration Methods 0.000 description 7
- 235000013372 meat Nutrition 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 235000013611 frozen food Nutrition 0.000 description 2
- 238000010257 thawing Methods 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 235000012055 fruits and vegetables Nutrition 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 238000000638 solvent extraction Methods 0.000 description 1
- 230000007704 transition 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
- F25D2600/00—Control issues
- F25D2600/02—Timing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2600/00—Control issues
- F25D2600/06—Controlling according to a predetermined profile
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- Combustion & Propulsion (AREA)
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- General Engineering & Computer Science (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides a storage method with a function of preventing food from freezing, wherein a periodic temperature reduction and temperature rise program is arranged in a storage period: s1: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and executing a heating program when the temperature of the storage area is reduced to be equal to the first preset target temperature T0; s2: temperature rising procedure: when the temperature of the storage area is equal to the first preset target temperature T0, the storage area is heated, and a multi-stage warming process is performed on the storage area with a second preset target temperature gradient. In addition, a refrigerator having a function of not freezing food is also disclosed.
Description
Technical Field
The invention relates to the field of refrigerators, in particular to a storage method with a food unfreezing function and a refrigerator.
Background
With the rapid development of air-cooled refrigerators and the strong demands of consumers on the functional partitioning of refrigerators, the multifunction of the refrigerators is 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 storage method and a refrigerator with a function of preventing food from freezing, so as to solve the above problems, specifically:
the invention provides a storage method with a function of preventing food from freezing, wherein a periodic temperature reduction and temperature increase program is arranged in a storage period:
s1: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and executing a heating program when the temperature of the storage area is reduced to be equal to the first preset target temperature T0;
s2: temperature rising procedure: heating the storage area when the temperature of the storage area is equal to a first preset target temperature T0, and performing a multi-stage warming process on the storage area with a second preset target temperature gradient,
the multi-stage heating process sets a preset total heating time t, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing the cooling program in the step S1 until the running time is Tn according to the preset temperature Tn;
wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
Preferably, the first preset target temperature is less than or equal to the freezing point temperature, and the second preset target temperature gradient is greater than the freezing point temperature.
Preferably, the first preset target temperature is: t0 is more than or equal to minus 10 ℃ and less than or equal to 0 ℃.
Preferably, the second preset target temperature gradient ranges from 0 ℃ to Tn ≦ 5 ℃.
Preferably, the n preset time periods in the warming program satisfy: t1 < t 2.
Preferably, the temperature raising program comprises 5 preset time periods, t1 is 1h, t2 is 2h, t3 is 3h, t4 is 4h, t5 is 5h,
the corresponding T1 values were 1 deg.C, T2 2 deg.C, T3 3 deg.C, T4 4 deg.C and T5 5 deg.C.
Preferably, the total duration of each of the preset time periods satisfies t < 24 h.
The invention discloses a storage method with a function of preventing food from freezing, and the storage method is provided with a periodic temperature rise and temperature fall program during the storage period:
s1: temperature rising procedure: heating the storage area, and carrying out a multi-stage heating process on the storage area by using a second preset target temperature gradient;
the multi-stage heating process sets a preset total heating time t, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; ...; executing a cooling program after the operation time is Tn according to the preset temperature Tn;
s2: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and when the temperature of the storage area drops to be equal to the first preset target temperature T0, performing step S1;
wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
Preferably, the first preset target temperature is less than or equal to the freezing point temperature, and the second preset target temperature gradient is greater than the freezing point temperature.
Preferably, the first preset target temperature is: t0 is more than or equal to minus 10 ℃ and less than or equal to 0 ℃.
Preferably, the second preset target temperature gradient ranges from 0 ℃ to Tn ≦ 5 ℃.
Preferably, the n preset time periods in the warming program satisfy: t1 < t 2.
Preferably, the temperature raising program comprises 5 preset time periods, t1 is 1h, t2 is 2h, t3 is 3h, t4 is 4h, t5 is 5h,
the corresponding T1 values were 1 deg.C, T2 2 deg.C, T3 3 deg.C, T4 4 deg.C and T5 5 deg.C.
Preferably, the total duration of each of the preset time periods satisfies t < 24 h.
In a third aspect of the present invention, a refrigerator having a function of preventing freezing of food is disclosed, the refrigerator including
A storage compartment for providing a storage area for food items;
the storage area heater is used for responding to a heating instruction of the control unit and heating the storage area;
the control unit is further used for realizing the storage method.
Preferably, the refrigerator further comprises
The refrigerating system is used for supplying cold to the storage area according to the control of the temperature adjusting device;
the timer is used for recording the working time of each preset temperature in the temperature-raising program;
and the temperature sensor is used for measuring the temperature of the storage area.
The fourth aspect of the invention discloses a refrigerator with a function of preventing food from freezing, which comprises
A storage compartment for providing a storage area for food items;
the storage area heater is used for responding to a heating instruction of the control unit and heating the storage area;
a temperature adjusting unit for adjusting the temperature of the storage area of the refrigerator in response to an instruction of the control unit;
the control unit is also used for periodically sending a first temperature control instruction for executing a cooling program and a second temperature control instruction for executing a heating program to the temperature adjusting unit; or, the control unit is further configured to periodically send a second temperature control instruction for executing a temperature raising program and a first temperature control instruction for executing a temperature lowering program to the temperature adjustment unit;
wherein the cooling procedure is as follows: carrying out a cooling process on the storage area at a first preset target temperature T0; and the temperature rising program comprises the following steps: when the temperature of the storage area is equal to a first preset target temperature T0, performing a multi-stage heating process on the storage area by using a second preset target temperature gradient, wherein the multi-stage heating process sets a preset total heating time T, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing the cooling program in the step S1 until the running time is Tn according to the preset temperature Tn; wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
Preferably, the refrigerator further comprises
The refrigerating system is used for supplying cold to the storage area according to the control of the temperature adjusting device;
the timer is used for recording the working time of each preset temperature in the temperature-raising program;
and the temperature sensor is used for measuring the temperature of the storage area.
The beneficial effects of the invention include: 1. the food can be kept from being frozen for storage, and the problem that the food can be frozen in long-term low-temperature storage due to single temperature control is avoided. 2. The realization is simpler, and complex control is not needed. 3. The refrigerator can effectively solve the problem that a consumer can keep the meat fresh in a short-term storage mode. In addition, a storage area heater is arranged to cooperate with temperature rise, the heater starts to work in the temperature rise stage and the freezing functional area, so that the freezing speed of water is reduced, frozen food possibly exists is unfrozen, and the transition period between gradient temperatures is shortened.
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 illustrates a method for storing dry goods by a cooling and heating procedure according to an embodiment of the present invention;
FIG. 2 illustrates a temperature-raising/lowering procedure dry-active storage method according to an embodiment of the present invention;
fig. 3 is an electrical configuration diagram of a refrigerator according to an embodiment of the present invention;
fig. 4 is a refrigerating system of a refrigerator according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. 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.
The terminology used in the embodiments of the invention is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used in the examples of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms as well, and "a" and "an" generally include at least two, but do not exclude at least one, unless the context clearly dictates otherwise.
It should be understood that the term "and/or" as used herein is merely one type of association that describes an associated object, meaning that three relationships may exist, e.g., a and/or B may mean: a exists alone, A and B exist simultaneously, and B exists alone. In addition, the character "/" herein generally indicates that the former and latter related objects are in an "or" relationship.
It is also noted that the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a good or system that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such good or system. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other like elements in a commodity or system that includes the element.
The invention discloses a storage method with a function of preventing food from freezing, which can be switched to use according to user selection by matching with the conventional storage method. The method can perform non-freezing fresh-keeping storage on the food placed in the soft freezing functional area, so that a user does not need to wait for the food to be processed after being thawed after taking out the food. The tender freezing in the invention refers to the storage with the function of not freezing food, and simultaneously, the freshness of the food is ensured.
For the storage area capable of storing food in a frozen state, the invention improves the prior art of single-temperature storage, and the improved design idea is as follows: the method comprises the following steps that after a tender freezing function is started, a heating stage and a cooling stage are divided, the heating stage is operated for different durations according to a plurality of preset temperatures, a storage area is heated while heating is carried out, and the heating is matched with a multi-stage, multi-temperature and different-duration heating process; the cooling stage operates according to a certain preset temperature. The heater of the tender freezing functional area starts to work in the temperature rising stage, and the freezing speed of water is reduced.
When the food is heated to reach the preset gradient temperature in the temperature rising process, the reasonable selection suitable for practical application can be made on the sequential execution relation of the temperature rising stage and the temperature lowering stage, and the temperature rising and the temperature lowering can be realized periodically. The cycle referred to in the present invention is one cycle in which the temperature raising program and the temperature lowering program are completed, or one cycle in which the temperature lowering program and the temperature raising program are completed, and the total time length of each cycle may be slightly different. In addition, the design of the heater realizes further optimization, so that the food which is possibly frozen can quickly reach a unfreezing state.
In view of the above design considerations of the present invention, in the storage method with a function of preventing food from freezing according to the present invention, the storage method may specifically include: periodically cooling and then heating the storage area, wherein the storage area is cooled at a first preset target temperature; and when the temperature of the storage area is equal to the first preset target temperature, heating the storage area, and sequentially heating the storage area by preset temperature-raising gradient temperatures respectively corresponding to the preset time periods according to the preset time periods. And the storage area is kept fresh for a plurality of periods.
To further illustrate the storage method of first lowering the temperature and then raising the temperature, the present invention provides the following embodiments.
Example 1
As shown in fig. 1, a storage method having a function of not freezing food is provided in the present embodiment. The method is that in the storage period, the temperature reduction and temperature increase programs are executed to the storage area periodically. S1: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and executing a heating program when the temperature of the storage area is reduced to be equal to the first preset target temperature T0; s2: temperature rising procedure: heating the storage area when the temperature of the storage area is equal to a first preset target temperature T0, and performing a multi-stage warming process on the storage area with a second preset target temperature gradient,
the multi-stage heating process sets a preset total heating time t, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing the cooling program in the step S1 until the running time is Tn according to the preset temperature Tn; wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+. Due to the difference of n, there are n preset time periods during execution, and the ellipses in this embodiment are used to explain that the temperature change process omitted until n is executed from n equal to 2 until n (Tn is the last preset time period, and Tn refers to the last preset temperature in the second preset target temperature gradient).
In this embodiment, the temperature of the food put into the storage area can be adjusted according to the requirement of the food, so the setting range of the first preset target temperature may be: t0 is more than or equal to minus 10 ℃ and less than or equal to 0 ℃. Correspondingly, the range of the second preset target temperature gradient is more than 0 ℃ and less than or equal to 5 ℃ in the temperature rising stage. Since the storage area can store a plurality of types of food, the freezing points of the food are different, and therefore, in a more specific preferred embodiment, the first preset target temperature is set to be in a range from-3 ℃ to 0 ℃, and correspondingly, the upper and lower limits of the second preset target temperature gradient can be set to be in a range greater than 0 ℃ and less than or equal to 5 ℃.
Or setting the first preset target temperature to be less than or equal to the freezing point temperature and setting the minimum value in the second preset target temperature gradient to be greater than the freezing point temperature according to the freezing point of a certain specific food.
In order to achieve a stepped warming and to prevent the food from freezing or to accelerate its thawing, it is preferred that n preset time periods in the warming program satisfy: t1 < t 2. The duration of the corresponding gradient of the temperature rise is designed to be gradually increased, so that the refrigeration power of the refrigerator can be reduced, and the energy is saved. In addition, in the embodiment, the total duration of each preset time period further satisfies t < 24 h.
In an alternative example, the temperature raising program may be divided into 5 preset time periods when the time period division is performed, wherein t1 is 1h, t2 is 2h, t3 is 3h, t4 is 4h, and t5 is 5 h. The corresponding temperatures in the warming gradient are reasonably set for 5 preset time periods, with corresponding T1 of 1 ℃, T2 of 2 ℃, T3 of 3 ℃, T4 of 4 ℃ and T5 of 5 ℃.
For the above design idea of the present invention, different from the storage method in embodiment 1, in another storage method with a function of not freezing food according to the present invention, the storage method may specifically include: the storage area is periodically heated and then cooled, wherein when the storage area is heated, the heater is started to heat the storage area, and the storage area is sequentially heated at preset temperature gradient temperatures respectively corresponding to the preset time periods according to the preset time periods; and when the temperature is reduced, the storage area is cooled to a first preset temperature by using the first preset target temperature. And the storage area is kept fresh for a plurality of periods.
To further illustrate the storage method of first lowering the temperature and then raising the temperature, the present invention provides the following embodiments.
Example 2
As shown in fig. 2, another storage method with a function of not freezing food is provided in the present embodiment. The method comprises the following steps of periodically carrying out temperature rising and temperature lowering procedures on a storage area during storage:
s1: temperature rising procedure: heating the storage area, and carrying out a multi-stage heating process on the storage area by using a second preset target temperature gradient;
the multi-stage heating process sets a preset total heating time t, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing a cooling program until the running time is Tn according to the preset temperature Tn;
s2: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and when the temperature of the storage area drops to be equal to the first preset target temperature T0, performing step S1;
wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+. (the ellipses in this example are also for convenience of description, with no other special meaning)
For the method, the temperature of the food put into the storage area can be adjusted according to the requirement of the food, so the setting range of the first preset target temperature can be as follows: t0 is more than or equal to minus 10 ℃ and less than or equal to 0 ℃. Correspondingly, the range of the second preset target temperature gradient is more than 0 ℃ and less than or equal to 5 ℃ in the temperature rising stage. Since the storage area can store a plurality of types of food, the freezing points of the food are different, and therefore, in a more specific preferred embodiment, the first preset target temperature is set to be in a range from-3 ℃ to 0 ℃, and correspondingly, the upper and lower limits of the second preset target temperature gradient can be set to be in a range greater than 0 ℃ and less than or equal to 5 ℃.
Or setting the first preset target temperature to be less than or equal to the freezing point temperature according to a certain specific food, and setting the minimum value in the second preset target temperature gradient to be greater than the freezing point temperature.
Similarly to example 1, on the one hand to achieve a step warming and to prevent the food from being frozen or to accelerate its thawing, it is preferred that n preset time periods in the warming program satisfy: t1 < t 2. The duration of the corresponding gradient of the temperature rise is designed to be gradually increased, so that the refrigeration power of the refrigerator can be reduced, and the energy is saved. In addition, in the embodiment, the total duration of each preset time period further satisfies t < 24 h. For example, the temperature raising program may be divided into 5 preset time periods when time division is performed thereon, where t1 is 1h, t2 is 2h, t3 is 3h, t4 is 4h, and t5 is 5 h. The corresponding temperatures in the warming gradient are reasonably set for 5 preset time periods, with corresponding T1 of 1 ℃, T2 of 2 ℃, T3 of 3 ℃, T4 of 4 ℃ and T5 of 5 ℃.
Based on the storage method, the invention also discloses a refrigerator.
Example 3
The refrigerator in the present embodiment includes a storage compartment, a storage area heater, and a control unit. The storage chamber is used for storing food. The storage area heater heats the storage area in response to a heating instruction of the control unit. The control unit in the refrigerator can implement the storage method in embodiment 1 and/or embodiment 2.
The refrigerator also includes a refrigeration system, a timer, and a temperature sensor. The refrigerating system can supply cold to the storage area according to the control of the temperature adjusting device; the timer records the working time of each preset temperature in the temperature-raising program; the temperature sensor measures the temperature of the storage area.
As shown in fig. 4, the refrigeration system of the refrigerator includes a compressor, a condenser, a condensation preventing pipe, a dry filter, a freezing evaporator, and a return air pipe assembly. In this embodiment, the refrigerator is not limited to have only the single storage mode, but may also have a normal storage mode.
Example 4
As shown in fig. 3, the present embodiment specifically discloses a refrigerator having a function of preventing food from freezing, which includes a temperature adjusting unit, a storage compartment, a storage zone heater, and a control unit. The storage area heater is used for responding to a heating instruction of the control unit and heating the storage area; the control unit controls the temperature adjusting unit to store the stored food at variable temperature. The temperature adjusting unit is used for adjusting the temperature of the storage area of the refrigerator in response to the instruction of the control unit. The control unit is used for periodically sending a first temperature control instruction for executing a temperature reduction program and a second temperature control instruction for executing a temperature increase program to the temperature adjusting unit; or the control unit is used for periodically sending a second temperature control instruction for executing a temperature-increasing program and a first temperature control instruction for executing a temperature-decreasing program to the temperature adjusting unit.
In this embodiment, the cooling procedure: the temperature of the storage area is lowered by a first preset target temperature T0. And the temperature rising program comprises the following steps: when the temperature of the storage area is equal to a first preset target temperature T0, performing a multi-stage heating process on the storage area by using a second preset target temperature gradient, wherein the multi-stage heating process sets a preset total heating time T, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing the cooling procedure of step S1 until the operation time is Tn according to the preset temperature Tn. Wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
In this embodiment, the refrigerator further includes a refrigeration system, a timer, and a temperature sensor. The refrigerating system can supply cold to the storage area according to the control of the temperature adjusting device; the timer records the working time of each preset temperature in the temperature-raising program; the temperature sensor measures the temperature of the storage area. The refrigerator in this embodiment is not limited to have only the single storage mode, and may also have a normal storage mode.
As shown in fig. 4, the refrigeration system of the refrigerator includes a compressor, a condenser, a condensation preventing pipe, a dry filter, a freezing evaporator, and a return air pipe assembly.
When the refrigerator is used for storing food, the control unit in the refrigerator can realize the control method by selecting the function of tendering and freezing, and the food is stored according to the corresponding cycle of temperature reduction and temperature rise or the cycle of temperature rise and temperature reduction. Or further optimizing the storage function of the freezing region of the refrigerator, integrating the two storage modes together, and manually selecting to perform cooling or heating firstly. For food with relatively low temperature or frozen food is placed in the functional area for unfreezing, a heater and a temperature rise stage are required to be utilized, and a mode of firstly raising the temperature and then lowering the temperature is selected; for the high temperature and the high temperature which is in the emergency of refrigeration, a mode of firstly cooling and then heating can be selected.
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 (10)
1. A storage method with a function of preventing food from freezing is characterized in that a periodical temperature reduction and temperature increase program is arranged during the storage period:
s1: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and executing a heating program when the temperature of the storage area is reduced to be equal to the first preset target temperature T0;
s2: temperature rising procedure: heating the storage area when the temperature of the storage area is equal to a first preset target temperature T0, and performing a multi-stage warming process on the storage area with a second preset target temperature gradient,
the multi-stage heating process sets a preset total heating time t, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing the cooling program in the step S1 until the running time is Tn according to the preset temperature Tn;
wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
2. A storage method with a function of preventing food from freezing is characterized in that a periodical temperature rising and reducing program is arranged during the storage period:
s1: temperature rising procedure: heating the storage area, and carrying out a multi-stage heating process on the storage area by using a second preset target temperature gradient;
the multi-stage heating process sets a preset total heating time t, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; .., executing a cooling program until the running time is Tn according to the preset temperature Tn;
s2: and (3) cooling procedure: performing a cooling process on the storage area at a first preset target temperature T0, and when the temperature of the storage area drops to be equal to the first preset target temperature T0, performing step S1;
wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
3. The storage method with the function of preventing the food from freezing as claimed in claim 1 or 2, wherein the first preset target temperature is equal to or less than the freezing point temperature, and the second preset target temperature gradient is greater than the freezing point temperature.
4. The storage method with the function of preventing the food from freezing according to claim 1 or 2, wherein the first preset target temperature is: t0 is more than or equal to minus 10 ℃ and less than or equal to 0 ℃.
5. The storage method with the function of preventing the food from freezing as claimed in claim 4, wherein the range of the second preset target temperature gradient is 0 ℃ < Tn ≦ 5 ℃.
6. The storage method with the function of preventing the food from freezing as claimed in any one of claims 3 to 5, wherein n preset time periods in the temperature rising program satisfy:
t1＜t2＜...＜tn。
7. the storage method with the function of preventing the food from freezing as claimed in claim 6, wherein the total duration of each of the preset time periods satisfies t < 24 h.
8. A refrigerator with food unfreezing function is characterized by comprising
A storage compartment for providing a storage area for food items;
the storage area heater is used for responding to a heating instruction of the control unit and heating the storage area;
the control unit is further used for realizing the storage method of any one of claims 1 to 7.
9. A refrigerator with food unfreezing function is characterized by comprising
A storage compartment for providing a storage area for food items;
the storage area heater is used for responding to a heating instruction of the control unit and heating the storage area;
a temperature adjusting unit for adjusting the temperature of the storage area of the refrigerator in response to an instruction of the control unit;
the control unit is also used for periodically sending a first temperature control instruction for executing a cooling program and a second temperature control instruction for executing a heating program to the temperature adjusting unit; or, the control unit is further configured to periodically send a second temperature control instruction for executing a temperature raising program and a first temperature control instruction for executing a temperature lowering program to the temperature adjustment unit;
wherein the cooling procedure is as follows: carrying out a cooling process on the storage area at a first preset target temperature T0; and the temperature rising program comprises the following steps: when the temperature of the storage area is equal to a first preset target temperature T0, performing a multi-stage heating process on the storage area by using a second preset target temperature gradient, wherein the multi-stage heating process sets a preset total heating time T, the preset total heating time is divided into n preset time periods, each preset time period corresponds to a preset temperature in the second preset target temperature gradient, and when the storage area is subjected to multi-stage heating: firstly, heating according to a preset temperature T1, wherein the running time is T1; after the operation is finished, the operation time is T2 according to the preset temperature T2; ...; until the running time is Tn according to the preset temperature Tn, implementing the cooling program in the step S1 after the operation is finished; wherein T0 < T1; t1 < T2 < Tn, n is a positive integer greater than 1; t > 0h t1+ t2+.
10. The refrigerator having the non-freezing function of food according to claim 8 or 9, further comprising
The refrigerating system is used for supplying cold to the storage area according to the control of the temperature adjusting device;
the timer is used for recording the working time of each preset temperature in the temperature-raising program;
and the temperature sensor is used for measuring the temperature of the storage area.
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| CN201910959956.7A CN110940146A (en) | 2019-10-10 | 2019-10-10 | Storage method with food non-freezing function and refrigerator |
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