CN115574534A - Control method of refrigerating and freezing device and refrigerating and freezing device - Google Patents
Control method of refrigerating and freezing device and refrigerating and freezing device Download PDFInfo
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- CN115574534A CN115574534A CN202110688004.3A CN202110688004A CN115574534A CN 115574534 A CN115574534 A CN 115574534A CN 202110688004 A CN202110688004 A CN 202110688004A CN 115574534 A CN115574534 A CN 115574534A
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- 238000007710 freezing Methods 0.000 title claims abstract description 410
- 230000008014 freezing Effects 0.000 title claims abstract description 410
- 238000000034 method Methods 0.000 title claims abstract description 34
- 238000005057 refrigeration Methods 0.000 claims description 58
- 238000001816 cooling Methods 0.000 claims description 29
- 230000015654 memory Effects 0.000 claims description 9
- 230000001737 promoting effect Effects 0.000 claims description 5
- 239000000463 material Substances 0.000 description 16
- 235000013305 food Nutrition 0.000 description 13
- 230000000694 effects Effects 0.000 description 11
- 238000010586 diagram Methods 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 7
- 238000004321 preservation Methods 0.000 description 5
- 230000003020 moisturizing effect Effects 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000000859 sublimation Methods 0.000 description 2
- 230000008022 sublimation Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 238000009920 food preservation Methods 0.000 description 1
- 235000013611 frozen food Nutrition 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
- 230000035764 nutrition Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
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Classifications
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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
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B39/00—Evaporators; Condensers
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/20—Disposition of valves, e.g. of on-off valves or flow control valves
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/30—Expansion means; Dispositions thereof
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B41/00—Fluid-circulation arrangements
- F25B41/40—Fluid line arrangements
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B47/00—Arrangements for preventing or removing deposits or corrosion, not provided for in another subclass
- F25B47/02—Defrosting cycles
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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
- F25B—REFRIGERATION MACHINES, PLANTS OR SYSTEMS; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS
- F25B49/00—Arrangement or mounting of control or safety devices
- F25B49/02—Arrangement or mounting of control or safety devices for compression type machines, plants or systems
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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
- F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention relates to a control method of a refrigerating and freezing device and the refrigerating and freezing device, wherein the refrigerating and freezing device comprises a box body and a refrigerating system, a freezing chamber and at least one non-freezing chamber are limited in the box body, the refrigerating system comprises a compressor, a condenser, an electromagnetic valve, a freezing capillary tube and a freezing evaporator which are sequentially connected in series to form a loop, two ends of the freezing capillary tube are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises the non-freezing capillary tube and the non-freezing evaporator which are connected in series. The control method of the invention comprises the following steps: when the refrigerating and freezing device is in a state of refrigerating any non-freezing chamber, the running frequency of the compressor is reduced, so that the evaporator temperature of the freezing evaporator is higher than the chamber temperature in the freezing chamber, the moisture in the freezing chamber is kept in the freezing chamber, the moisture at the freezing evaporator enters the freezing chamber, and the humidity of the freezing chamber is further improved.
Description
Technical Field
The present invention relates to a refrigeration and freezing technology, and more particularly, to a control method of a refrigeration and freezing apparatus and a refrigeration and freezing apparatus.
Background
The humidity inside the refrigerating and freezing device can affect the speed of water evaporation of food materials, so that the quality of the food materials is affected. When the humidity is too low, the moisture of the food materials is evaporated quickly, so that the weight loss of the food materials is caused, and the problems of poor food storage effect, short food preservation period and the like are caused. Therefore, it is always an important research subject to moisturize a refrigerating and freezing device. However, most of the conventional refrigerating and freezing apparatuses humidify and moisturize the refrigerating chamber, and little attention is paid to humidification and moisturization of the freezing chamber. In fact, the humidity of freezer is less, and the moisture loss of eating materials such as the meat of long-time storage in the freezer is serious, and it is poor to store the effect, not only can influence the taste of eating the material, but also can cause the loss of eating the material nutrition, influences user experience.
The few solutions in the prior art relating to the humidification of the freezer compartment are to add a very complex humidification device in the cold storage and freezing device. However, the temperature of the freezing chamber is low, the humidifying device is easy to generate frost and is blocked, and the humidifying device occupies the air duct space or the compartment space. Therefore, the existing solutions not only increase the cost and assembly difficulty of the refrigeration and freezing device, but also are very difficult to be applied in practice, so that the problem of low humidity of the freezing chamber cannot be solved practically.
Disclosure of Invention
It is an object of a first aspect of the present invention to overcome at least one of the disadvantages of the prior art and to provide a control method which can effectively avoid low humidity in the freezer compartment by using the original structure of the refrigeration freezer.
It is a further object of the first aspect of the invention to increase the humidification rate of the freezer compartment.
A second aspect of the present invention is to provide a refrigerating and freezing apparatus which can effectively prevent a low humidity in a freezing chamber by using its original structure.
According to a first aspect of the invention, the invention provides a control method of a refrigerating and freezing device, the refrigerating and freezing device comprises a box body and a refrigerating system, a freezing chamber and at least one non-freezing chamber are defined in the box body, the refrigerating system comprises a compressor, a condenser, an electromagnetic valve, a freezing capillary tube and a freezing evaporator which are sequentially connected in series to form a loop, two ends of the freezing capillary tube are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises a non-freezing capillary tube and a non-freezing evaporator which are connected in series; the control method comprises the following steps:
when the refrigeration and freezing device is in a state of refrigerating any non-freezing chamber, the running frequency of the compressor is reduced, so that the evaporator temperature of the freezing evaporator is higher than the chamber temperature in the freezing chamber, the moisture in the freezing chamber is kept in the freezing chamber, the moisture at the freezing evaporator enters the freezing chamber, and the humidity of the freezing chamber is further improved.
Optionally, the refrigeration and freezing device further comprises a freezing fan for causing the cooling air flow generated by the freezing evaporator to flow to the freezing chamber when the freezing chamber is refrigerated; the control method further comprises the following steps:
when the refrigerating and freezing device is in a state that any non-freezing compartment is refrigerated, the freezing fan is controlled to continuously run until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment.
Optionally, when the refrigeration and freezing device is in any non-freezing compartment refrigeration state, the rotating speed of the freezing fan is less than the set rotating speed of the freezing fan when the refrigeration and freezing device is in a freezing compartment refrigeration state.
Optionally, when the refrigeration freezer is in any non-freezer compartment cooling state, the operating frequency of the compressor is between the minimum operating frequency of the compressor and the set operating frequency of the compressor when the refrigeration freezer is in the freezer compartment cooling state.
Optionally, when the refrigeration and freezing device is in a state of refrigerating any non-freezing chamber, the operating frequency of the compressor is 3-17 Hz lower than the set operating frequency.
Optionally, when the refrigeration and freezing device is in a state of refrigerating any non-freezing chamber, the operating frequency of the compressor is 8-12 hertz lower than the set operating frequency.
Optionally, the control method further includes:
when the temperature in the non-freezing chamber in the refrigerating state reaches the set temperature of the non-freezing chamber, if the temperature in the freezing chamber is higher than the set temperature of the freezing chamber, the electromagnetic valve is controlled to be switched to the refrigerating state of the freezing chamber, and the operating frequency of the compressor is increased.
Optionally, the at least one non-freezing compartment comprises a refrigerated compartment, the at least one non-freezing branch comprises a refrigerated branch, the non-freezing capillary tube comprises a refrigerated capillary tube, and the non-freezing evaporator comprises a refrigerated evaporator; and/or
The at least one non-freezing chamber comprises a variable-temperature chamber, the at least one non-freezing branch comprises a variable-temperature branch, the non-freezing capillary comprises a variable-temperature capillary, and the non-freezing evaporator comprises a variable-temperature evaporator.
According to a second aspect of the present invention, there is also provided a refrigeration and freezing apparatus comprising:
the refrigerator comprises a box body, a refrigerating chamber and at least one non-refrigerating chamber are defined in the box body;
the refrigeration system comprises a compressor, a condenser, an electromagnetic valve, a freezing capillary tube and a freezing evaporator which are sequentially connected in series to form a loop, wherein two ends of the freezing capillary tube are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises a non-freezing capillary tube and a non-freezing evaporator which are connected in series; and
a control apparatus comprising a processor and a memory, the memory having stored therein a machine executable program, and the machine executable program when executed by the processor being for implementing the control method of any of the above aspects.
Optionally, the refrigeration freezer further comprises:
and the freezing fan is used for promoting the cooling air flow generated by the freezing evaporator to flow to the freezing compartment when the freezing compartment is refrigerated, and is configured to keep a continuous operation state when the refrigerating and freezing device is in any non-freezing compartment refrigerating state until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment.
The refrigerating and freezing device of the invention increases the evaporator temperature of the freezing evaporator by reducing the running frequency of the compressor during the refrigeration of the non-freezing chamber, so that the evaporator temperature of the freezing evaporator is higher than the chamber temperature in the freezing chamber under the condition of meeting the refrigeration requirement of the non-freezing chamber. At this time, the external water vapor entering the freezing chamber through the door seal and the moisture in the freezing chamber (for example, the moisture volatilized by the food materials) can be condensed in the freezing chamber with lower temperature instead of being condensed at the freezing evaporator, so that the moisture content in the freezing chamber can be effectively increased, the humidity in the freezing chamber can be increased, and the food material storage effect can be prevented from being influenced by the lower humidity in the freezing chamber.
Moreover, the invention realizes the humidification and moisture preservation effect of the freezing chamber by controlling the running frequency of the compressor on the basis of the original structure of the refrigerating and freezing device without adding any auxiliary structure, thereby not affecting the original structure and the storage capacity of the refrigerating and freezing device and being convenient for practical application.
Further, the refrigerating and freezing device further comprises a freezing fan for promoting the flow of the cooling air generated by the freezing evaporator to the freezing chamber when the freezing chamber is refrigerated. In the prior art, when a non-freezing chamber is refrigerated, a freezing fan is usually stopped. The freezing fan is set to continuously run during the refrigeration period of the non-freezing chamber, and at the moment, part of water vapor formed by frosting and sublimating the surface of the freezing evaporator enters the freezing chamber with lower temperature under the promoting action of the freezing fan, so that the moisture increasing speed in the freezing chamber is further increased, and the humidifying speed of the freezing chamber is increased.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural view of a refrigerating and freezing apparatus according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a refrigeration system of a refrigeration freezer apparatus according to one embodiment of the present invention;
fig. 3 is a schematic flow chart of a method of controlling a refrigeration chiller according to an embodiment of the present invention;
fig. 4 is a schematic flow chart of a method of controlling a refrigeration chiller according to another embodiment of the present invention;
fig. 5 is a schematic block diagram of a refrigeration system according to another embodiment of the present invention;
fig. 6 is a schematic block diagram of a refrigeration system according to still another embodiment of the present invention;
fig. 7 is a schematic block diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention.
Detailed Description
The present invention first provides a control method of a refrigerating and freezing apparatus, fig. 1 is a schematic configuration diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention, and fig. 2 is a schematic configuration diagram of a refrigeration system of a refrigerating and freezing apparatus according to an embodiment of the present invention.
Referring to fig. 1 and 2, a refrigeration and freezing apparatus 1 includes a cabinet 10 and a refrigeration system 20, the cabinet 10 defining a freezing compartment 11 and at least one non-freezing compartment therein. It is understood that the freezing compartment 11 is a compartment for freezing and the non-freezing compartment is a compartment for non-freezing, e.g. the non-freezing compartment may be a compartment for cold storage or temperature change. Normally, the temperature in the non-freezing compartment is higher than the temperature in the freezing compartment 11.
The refrigerating system 20 comprises a compressor 21, a condenser 22, an electromagnetic valve 23, a freezing capillary 24 and a freezing evaporator 25 which are sequentially connected in series to form a loop, wherein two ends of the freezing capillary 24 are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises a non-freezing capillary and a non-freezing evaporator which are connected in series. In the present invention, the series and parallel are referred to as physical series and parallel of refrigerant flow paths, respectively, rather than series and parallel of circuit configurations.
When the refrigeration and freezing apparatus 1 is in a state in which the non-freezing compartment is refrigerated, the solenoid valve 23 is set in a state in which the condenser 22 and the non-freezing branch corresponding to the non-freezing compartment are communicated, and at this time, the refrigerant flowing out of the compressor 21 passes through the condenser 22, the solenoid valve 23, the non-freezing evaporator and the non-freezing capillary tube of the non-freezing branch, and the freezing evaporator 25 in this order, and finally returns to the compressor 21. When the refrigerating and freezing apparatus 1 is in a state in which the freezing compartment is cooled, the solenoid valve 23 is set in a state in which the condenser 22 and the freezing capillary tube 24 are communicated with each other, and at this time, the refrigerant flowing out of the compressor 21 passes through the condenser 22, the solenoid valve 23, the freezing capillary tube 24, and the freezing evaporator 25 in this order, and finally returns to the compressor 21.
The applicant has realised that the freezer compartment 11 is not an absolutely closed compartment. Air carrying moisture from the outside can enter the freezing chamber 11 through the door seal of the freezing chamber 11; the food material inside the freezing compartment 11 that is not frozen will volatilize certain moisture; after the food material in the freezing chamber 11 is frozen, a small amount of water on the surface of the food material is sublimated; the frost formed on the surface of the freezing evaporator 25 is also sublimated a little. That is, the refrigerating and freezing device 1 originally has a plurality of types of moisture sources that can be used for moisturizing or humidifying the freezing compartment 11. If this moisture can be effectively used to humidify or humidify the freezing compartment 11, it is not necessary to provide any other humidifying device at all.
The applicant has further realised that with an air-cooled refrigeration and freezing apparatus 1 there is very little condensation within the storage compartment, which occurs substantially at the evaporator. This is because the temperature of the evaporator is generally lower than the temperature of the storage compartment. That is, moisture will generally collect and condense at cooler locations. Then, if the compartment temperature in the freezing compartment 11 is lower than the evaporator temperature at the freezing evaporator 25, moisture accumulates in the freezing compartment 11, and it is possible to effectively moisturize the freezing compartment 11 or increase the humidity in the freezing compartment.
To this end, the invention proposes, in particular, a method for controlling a refrigeration and freezing apparatus, the method comprising:
when the refrigeration and freezing device 1 is in any non-freezing compartment refrigeration state, the operation frequency of the compressor 21 is reduced, so that the evaporator temperature of the freezing evaporator 25 is higher than the compartment temperature in the freezing compartment 11, the moisture in the freezing compartment 11 is kept in the freezing compartment 11, the moisture at the freezing evaporator 25 enters the freezing compartment 11, and the humidity of the freezing compartment 11 is further improved.
The refrigerating and freezing apparatus 1 of the present invention raises the evaporator temperature of the freezing evaporator 25 by lowering the operating frequency of the compressor 21 during non-freezing compartment cooling, and makes the evaporator temperature of the freezing evaporator 25 higher than the compartment temperature in the freezing compartment 11 in the case of satisfying the non-freezing compartment cooling demand. At this time, the external moisture and the moisture in the freezing compartment 11 (for example, the moisture volatilized from the food material, the moisture sublimated from the surface of the frozen food material, etc.) entering the freezing compartment 11 through the door seal are condensed in the freezing compartment 11 with a lower temperature instead of being condensed at the freezing evaporator 25, so that the moisture content in the freezing compartment 11 can be effectively increased, the humidity in the freezing compartment 11 can be increased, and the food material preservation effect can be prevented from being influenced by the lower humidity in the freezing compartment 11.
Moreover, the invention realizes the humidification and moisture preservation effect of the freezing chamber 11 by controlling the running frequency of the compressor 21 on the basis of the original structure of the refrigerating and freezing device 1, and does not need to add any auxiliary structure, thereby not influencing the original structure and the storage capacity of the refrigerating and freezing device 1 and being convenient for practical application. The scheme for realizing humidification and moisture preservation of the freezing compartment 11 is completely different from the scheme adopted in the prior art, the design idea is novel, the effect is obvious, and the practical application prospect is good.
Fig. 3 is a schematic flow chart of a control method of a refrigerating and freezing apparatus according to an embodiment of the present invention, and referring to fig. 3, the control method of the present invention includes:
step S10, acquiring the current state of the refrigerating and freezing device 1;
step S20, judging whether the refrigerating and freezing device 1 is in a non-freezing chamber refrigerating state; if yes, go to step S30, if no, return to step S10; and
in step S30, the operating frequency of the compressor 21 is reduced so that the evaporator temperature of the freezing evaporator 25 is higher than the compartment temperature in the freezing compartment 11.
During the entire non-freezing compartment cooling period, the compressor 21 is always operated at the reduced operating frequency to always humidify or humidify the freezing compartment 11.
In some embodiments, the refrigeration freezer 1 further comprises a freezer fan 30 for causing a flow of cooling air generated by the freezer evaporator 25 to flow to the freezer compartment 11 when the freezer compartment 11 is refrigerated. In these embodiments, the control method of the present invention further includes:
when the refrigeration and freezing device 1 is in a state of refrigerating any non-freezing compartment, the freezing fan 30 is controlled to continuously operate until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment.
In the prior art, the freezing fan 30 is normally stopped when the non-freezing compartment is cooled. In the invention, the freezing fan 30 is set to continuously operate during the non-freezing compartment refrigeration period, and at the moment, part of water vapor formed by frosting and sublimating on the surface of the freezing evaporator 25 enters the freezing compartment 11 with lower temperature at a higher speed under the promoting action of the freezing fan 30, so that the speed of increasing the water in the freezing compartment 11 is increased, and the humidification rate of the freezing compartment 11 is increased.
Fig. 4 is a schematic flow chart of a control method of a refrigerating and freezing apparatus according to another embodiment of the present invention, and referring to fig. 4, the control method of the present invention includes:
step S10, acquiring the current state of the refrigerating and freezing device 1;
step S20, judging whether the refrigerating and freezing device 1 is in a non-freezing chamber refrigerating state; if yes, go to step S30; and
a step S30 of reducing the operating frequency of the compressor 21 so that the evaporator temperature of the freezing evaporator 25 is higher than the compartment temperature in the freezing compartment 11; and
and step S40, controlling the refrigerating fan 30 to continuously run until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment. The continuous operation here means that the freezing fan 30 is kept in operation throughout the non-freezing compartment cooling period.
Specifically, in the embodiment shown in fig. 4, the freezing fan 30 is started after the operating frequency of the compressor 21 is reduced. It will be appreciated that in some alternative embodiments, the start-up of the refrigeration fan 30 may also be performed simultaneously with the reduction of the operating frequency of the compressor 21.
Since the purpose of the operation of the freezing fan 30 during non-freezing compartment cooling is to promote the moisture formed by sublimation of part of the frost on the freezing evaporator 25 to enter the freezing compartment 11 relatively quickly, rather than to convey the airflow to the freezing compartment 11, the rotational speed of the freezing fan 30 does not need to be large.
To this end, in some embodiments, when the refrigeration and freezing apparatus 1 is in any non-freezing compartment cooling state, the rotational speed of the freezing fan 30 is less than the set rotational speed of the freezing fan 30 when the refrigeration and freezing apparatus 1 is in the freezing compartment cooling state. Therefore, the water vapor formed by sublimation of part of the frost on the freezing evaporator 25 can be quickly sent into the freezing chamber 11, and the phenomenon that the temperature in the freezing chamber 11 is increased more due to the fact that more air flows with relatively higher temperature enter the freezing chamber 11 can be avoided.
Since the refrigeration requirement of the non-freezing compartment needs to be met during the cooling of the non-freezing compartment, and the evaporator temperature of the freezing evaporator 25 cannot be too high, the temperature of the freezing compartment 11 is affected. Therefore, the operating frequency of the compressor 21 cannot be too low.
To this end, in some embodiments, when the refrigerator-freezer 1 is in either non-freezer compartment cooling state, the operating frequency of the compressor 21 is between the lowest operating frequency of the compressor 21 and the set operating frequency of the compressor 21 when the refrigerator-freezer 1 is in the freezer compartment cooling state. Therefore, the refrigeration requirement of the non-freezing chamber can be met, the temperature in the freezing chamber 11 is prevented from being excessively increased due to the overhigh evaporator temperature of the freezing evaporator 25, the evaporator temperature of the freezing evaporator 25 can be higher than the chamber temperature in the freezing chamber 11, and the purpose of moisturizing or humidifying the freezing chamber 11 is achieved.
In some embodiments, the operating frequency of the compressor 21 is 3 to 17 hz lower than the set operating frequency when the refrigeration and freezing apparatus 1 is in any non-freezing compartment cooling state. That is, as long as the operating frequency of the compressor 21 is appropriately lowered so that the evaporator temperature of the freezing evaporator 25 is slightly higher than the temperature in the freezing compartment 11, the cooling efficiency and the cooling effect of the non-freezing compartment are maximally secured, and the temperature in the freezing compartment 11 is prevented from rising too much as possible.
For example, during non-freezer compartment refrigeration, the operating frequency of the compressor 21 may be 3, 5, 7, 9, 11, 13, 15, or 17 hertz lower than the operating frequency of the compressor 21 during freezer compartment refrigeration.
Preferably, when the refrigeration and freezing device 1 is in any non-freezing compartment cooling state, the operating frequency of the compressor 21 is 8 to 12 hz lower than the set operating frequency of the compressor 21. This makes the refrigerating efficiency and refrigerating effect of the non-freezing compartment and the moisturizing and humidifying effect of the freezing compartment 11 better.
In some embodiments, the control method of the present invention further comprises:
when the temperature in the non-freezing compartment in the cooling state reaches the set temperature of the non-freezing compartment, and if the temperature in the freezing compartment 11 is higher than the set temperature of the freezing compartment 11, the control solenoid valve 23 is switched to the cooling state of the freezing compartment 11, and the operating frequency of the compressor 21 is increased so that the freezing compartment 11 reaches the set temperature quickly.
Specifically, during the cooling of the freezing compartment 11, the operating frequency of the compressor 21 may be increased to the above-described set operating frequency.
In some embodiments, the at least one non-freezing compartment may comprise the refrigerated compartment 12, the at least one non-freezing branch may comprise the refrigerated branch 201, the non-freezing capillary may comprise the refrigerated capillary 26, and the non-freezing evaporator may comprise the refrigerated evaporator 27. During the cooling of the refrigerating compartment 12, the freezing compartment 11 is moisturized or humidified by reducing the operating frequency of the compressor 21.
Fig. 5 is a schematic block diagram of a refrigeration system according to another embodiment of the present invention. In other embodiments, the at least one non-freezing compartment may include a temperature-changing compartment 13, the at least one non-freezing branch may include a temperature-changing branch 202, the non-freezing capillary may include a temperature-changing capillary 28, and the non-freezing evaporator may include a temperature-changing evaporator 29. During the cooling of the temperature-changing compartment 13, the freezing compartment 11 is moisturized or humidified by reducing the operating frequency of the compressor 21.
Fig. 6 is a schematic structural block diagram of a refrigeration system according to still another embodiment of the present invention. In still other embodiments, the number of non-freezing compartments may be two, namely the refrigerating compartment 12 and the temperature-changing compartment 13. The number of the non-freezing branches is two, and the non-freezing branches are respectively a refrigerating branch 201 and a temperature changing branch 202. The number of non-freezing capillaries is two, namely a refrigerating capillary 26 and a temperature changing capillary 28. The number of the non-freezing evaporators is two, namely a refrigerating evaporator 27 and a temperature-changing evaporator 29. During the cooling of either the cold storage compartment 12 or the variable temperature compartment 13, the freezing compartment 11 is moisturized or humidified by reducing the operating frequency of the compressor 21.
The invention also provides a refrigerating and freezing device, and fig. 7 is a schematic structural block diagram of the refrigerating and freezing device according to one embodiment of the invention. Referring to fig. 1, 2 and 7, the refrigerating and freezing apparatus 1 of the present invention includes a cabinet 10, a refrigeration system 20 and a control apparatus 40.
The cabinet 10 defines a freezing compartment 11 and at least one non-freezing compartment therein.
The refrigerating system 20 comprises a compressor 21, a condenser 22, an electromagnetic valve 23, a freezing capillary 24 and a freezing evaporator 25 which are sequentially connected in series to form a loop, wherein two ends of the freezing capillary 24 are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises a non-freezing capillary and a non-freezing evaporator which are connected in series.
The control device 40 comprises a processor 41 and a memory 42, the memory 42 having a machine executable program 43 stored therein, and the machine executable program 43 being executable by the processor 41 for implementing the control method described in any of the above embodiments.
The refrigeration and freezing device 1 can effectively improve the moisture content in the freezing chamber 11, improve the humidity in the freezing chamber 11 and avoid the influence of the lower humidity in the freezing chamber 11 on the food material preservation effect.
Specifically, the processor 41 may be a Central Processing Unit (CPU), a digital processing unit, or the like. The processor 41 transceives data through the communication interface. The memory 44 is used to store programs executed by the processor 41. The memory 44 is any medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, or a combination of memories. The machine-executable program 43 may be downloaded from a computer-readable storage medium to a corresponding computing/processing device or via a network (e.g., the internet, a local area network, a wide area network, and/or a wireless network) to a computer or external storage device.
In some embodiments, the refrigeration freezer 1 further comprises a freezer fan 30. The freezing fan 30 is used for causing the cooling air flow generated by the freezing evaporator 25 to flow to the freezing compartment 11 when the freezing compartment 11 is refrigerated, and is configured to maintain a continuous operation state when the refrigeration freezing device 1 is in any state of refrigerating the non-freezing compartment until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment. Therefore, moisture at the freezing evaporator 25 can be promoted to enter the freezing chamber 11 more quickly by the freezing fan 30, and the humidifying efficiency of the freezing chamber 11 is improved.
Specifically, the freezing fan 30 is electrically connected to the control device 40 to operate under the control of the control device 40.
It will be understood by those skilled in the art that the refrigerating and freezing apparatus 1 of the present invention includes not only refrigerators but also freezers, freezers or other refrigerating and freezing apparatuses having at least a freezing function.
Thus, it should be appreciated by those skilled in the art that while various exemplary embodiments of the invention have been shown and described in detail herein, many other variations or modifications which are consistent with the principles of this invention may be determined or derived directly from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A control method of a refrigerating and freezing device comprises a box body and a refrigerating system, wherein a freezing chamber and at least one non-freezing chamber are defined in the box body, the refrigerating system comprises a compressor, a condenser, an electromagnetic valve, a freezing capillary tube and a freezing evaporator which are sequentially connected in series to form a loop, two ends of the freezing capillary tube are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises a non-freezing capillary tube and a non-freezing evaporator which are connected in series; the control method comprises the following steps:
when the refrigeration and freezing device is in a state of refrigerating any non-freezing chamber, the running frequency of the compressor is reduced, so that the evaporator temperature of the freezing evaporator is higher than the chamber temperature in the freezing chamber, the moisture in the freezing chamber is kept in the freezing chamber, the moisture at the freezing evaporator enters the freezing chamber, and the humidity of the freezing chamber is further improved.
2. The control method of claim 1, the refrigeration freezer further comprising a freezer fan for causing a flow of cooling air generated by the freezer evaporator to the freezer compartment while the freezer compartment is refrigerating; the control method further comprises the following steps:
when the refrigerating and freezing device is in a state that any non-freezing compartment is refrigerated, the freezing fan is controlled to continuously run until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment.
3. The control method according to claim 2, wherein
When the refrigerating and freezing device is in any non-freezing chamber refrigerating state, the rotating speed of the freezing fan is smaller than the set rotating speed of the freezing fan when the refrigerating and freezing device is in a freezing chamber refrigerating state.
4. The control method according to claim 1, wherein
When the refrigerating and freezing device is in any non-freezing chamber refrigerating state, the operating frequency of the compressor is between the lowest operating frequency of the compressor and the set operating frequency of the compressor when the refrigerating and freezing device is in a freezing chamber refrigerating state.
5. The control method according to claim 4, wherein
When the refrigerating and freezing device is in a state of refrigerating any non-freezing chamber, the operating frequency of the compressor is 3-17 Hz lower than the set operating frequency.
6. The control method according to claim 5, wherein
When the refrigerating and freezing device is in a state of refrigerating any non-freezing compartment, the operating frequency of the compressor is 8-12 Hz lower than the set operating frequency.
7. The control method according to claim 1, further comprising:
when the temperature in the non-freezing chamber in the refrigerating state reaches the set temperature of the non-freezing chamber, if the temperature in the freezing chamber is higher than the set temperature of the freezing chamber, the electromagnetic valve is controlled to be switched to the refrigerating state of the freezing chamber, and the operating frequency of the compressor is increased.
8. The control method according to claim 1, wherein
The at least one non-freezing compartment comprises a refrigerated compartment, the at least one non-freezing branch comprises a refrigerated branch, the non-freezing capillary tube comprises a refrigerated capillary tube, and the non-freezing evaporator comprises a refrigerated evaporator; and/or
The at least one non-freezing chamber comprises a variable-temperature chamber, the at least one non-freezing branch comprises a variable-temperature branch, the non-freezing capillary comprises a variable-temperature capillary, and the non-freezing evaporator comprises a variable-temperature evaporator.
9. A refrigeration chiller comprising:
the refrigerator comprises a box body, a refrigerating chamber and at least one non-refrigerating chamber are defined in the box body;
the refrigeration system comprises a compressor, a condenser, an electromagnetic valve, a freezing capillary tube and a freezing evaporator which are sequentially connected in series to form a loop, wherein two ends of the freezing capillary tube are connected in parallel with at least one non-freezing branch for respectively providing cold energy for the at least one non-freezing chamber, and each non-freezing branch comprises a non-freezing capillary tube and a non-freezing evaporator which are connected in series; and
control apparatus comprising a processor and a memory, the memory having stored therein a machine executable program, and the machine executable program when executed by the processor being for implementing a control method according to any one of claims 1 to 8.
10. The refrigeration freezer of claim 9, further comprising:
and the freezing fan is used for promoting the cooling air flow generated by the freezing evaporator to flow to the freezing compartment when the freezing compartment is refrigerated, and is configured to keep a continuous operation state when the refrigerating and freezing device is in any non-freezing compartment refrigerating state until the temperature in the non-freezing compartment in the refrigerating state reaches the set temperature of the non-freezing compartment.
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688004.3A CN115574534A (en) | 2021-06-21 | 2021-06-21 | Control method of refrigerating and freezing device and refrigerating and freezing device |
| PCT/CN2022/093876 WO2022267776A1 (en) | 2021-06-21 | 2022-05-19 | Control method for refrigerating and freezing apparatus, and refrigerating and freezing apparatus |
| EP22827274.6A EP4361544A1 (en) | 2021-06-21 | 2022-05-19 | Control method for refrigerating and freezing apparatus, and refrigerating and freezing apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110688004.3A CN115574534A (en) | 2021-06-21 | 2021-06-21 | Control method of refrigerating and freezing device and refrigerating and freezing device |
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| Publication Number | Publication Date |
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| CN115574534A true CN115574534A (en) | 2023-01-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110688004.3A Pending CN115574534A (en) | 2021-06-21 | 2021-06-21 | Control method of refrigerating and freezing device and refrigerating and freezing device |
Country Status (3)
| Country | Link |
|---|---|
| EP (1) | EP4361544A1 (en) |
| CN (1) | CN115574534A (en) |
| WO (1) | WO2022267776A1 (en) |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001272147A (en) * | 2000-01-17 | 2001-10-05 | Hoshizaki Electric Co Ltd | Refrigerator |
| KR100661836B1 (en) * | 2005-08-24 | 2006-12-28 | 삼성전자주식회사 | A refrigerator and method to add a moisture |
| JP2008057904A (en) * | 2006-09-01 | 2008-03-13 | Hitachi Appliances Inc | Refrigerator |
| CN103673483B (en) * | 2013-11-22 | 2015-11-18 | 澳柯玛股份有限公司 | A kind of wet-film humidifying system of wind cooling refrigerator |
| CN105972905A (en) * | 2016-05-17 | 2016-09-28 | 合肥美菱股份有限公司 | Control method of humidifying module of air-cooling refrigerator |
| CN106871539B (en) * | 2017-02-13 | 2019-07-26 | 合肥华凌股份有限公司 | Freeze preservation device, freeze preservation method and refrigeration equipment |
| CN207113361U (en) * | 2017-08-16 | 2018-03-16 | 合肥华凌股份有限公司 | Refrigerator |
| CN207113362U (en) * | 2017-08-16 | 2018-03-16 | 合肥华凌股份有限公司 | Refrigerator |
| CN207515321U (en) * | 2017-11-08 | 2018-06-19 | 合肥华凌股份有限公司 | Refrigerator |
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2021
- 2021-06-21 CN CN202110688004.3A patent/CN115574534A/en active Pending
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2022
- 2022-05-19 EP EP22827274.6A patent/EP4361544A1/en active Pending
- 2022-05-19 WO PCT/CN2022/093876 patent/WO2022267776A1/en active Application Filing
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| WO2022267776A1 (en) | 2022-12-29 |
| EP4361544A1 (en) | 2024-05-01 |
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