CN109751814B - Refrigerating and freezing device and control method thereof - Google Patents
Refrigerating and freezing device and control method thereof Download PDFInfo
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- CN109751814B CN109751814B CN201811386862.7A CN201811386862A CN109751814B CN 109751814 B CN109751814 B CN 109751814B CN 201811386862 A CN201811386862 A CN 201811386862A CN 109751814 B CN109751814 B CN 109751814B
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- 230000008014 freezing Effects 0.000 title claims abstract description 42
- 238000007710 freezing Methods 0.000 title claims abstract description 42
- 238000000034 method Methods 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 62
- 238000005057 refrigeration Methods 0.000 claims description 23
- 238000010257 thawing Methods 0.000 claims description 8
- 238000010438 heat treatment Methods 0.000 claims description 5
- 238000010586 diagram Methods 0.000 description 5
- 239000003507 refrigerant Substances 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 230000008022 sublimation Effects 0.000 description 1
- 238000000859 sublimation Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
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Abstract
The present invention relates to a refrigerating and freezing apparatus and a control method thereof. Specifically, the refrigerating and freezing device includes an ice making device, a first cooling chamber, and a first evaporator; the first cooling chamber is communicated with the ice making device through a first air duct assembly; the first evaporator is vertically arranged in the first cooling chamber; the upper part of the first cooling chamber is provided with an air supply outlet, the lower part of the first cooling chamber is provided with a first air return opening and a second air return opening, and the second air return opening is positioned on the upper side of the first air return opening; and the first air duct assembly includes: the air supply duct is communicated with the air supply outlet and the ice making device; the first air return duct is communicated with the first air return opening and the ice making device; the second return air duct is communicated with the second return air inlet and the ice making device; and the air duct opening and closing device is configured to alternatively conduct the first return air duct and the second return air duct or simultaneously conduct the first return air duct and the second return air duct in a controlled manner. The ice making evaporator can prevent the circulation air quantity of the whole ice making from becoming small and the ice making speed from becoming slower and slower due to frost blockage of the ice making evaporator.
Description
Technical Field
The invention relates to the field of refrigeration equipment, in particular to a refrigerating and freezing device and a control method thereof.
Background
A refrigerating and freezing device is an electric appliance in which a refrigeration cycle of compressing, condensing, expanding, and evaporating is repeated using a refrigerant in order to store food at a low temperature. Large refrigeration freezers are becoming commonplace and various types of electric refrigeration freezers have been developed to meet the needs of users. For example, an ice making device may be provided on a door of a refrigerator-freezer. The ice making device, the refrigerating chamber and the freezing chamber all need cold energy to work. In the existing scheme, an ice making device, a refrigerating chamber and a freezing chamber share one evaporator and one air duct structure, so that the structure of the refrigerating and freezing device is complex.
Disclosure of Invention
The inventor of the invention proposes to arrange a separate ice making evaporator for the ice making device in order to improve the working efficiency and the ice making efficiency of the refrigerating and freezing device, when the ice making device needs to make ice or cold water, the ice making evaporator refrigerates, an ice making fan operates, enters an ice making chamber through an air duct to refrigerate the ice making device, and returns to the ice making evaporator through the air duct after heat exchange. Further, the inventors have found that the rate of frost formation on the ice-making evaporator is greater than that of the refrigerating and freezing compartments due to the effects of evaporation of water injected into the ice-making device and sublimation of ice cubes within the ice-making compartment. And because the heat load required by the ice making compartment is smaller, and a large evaporator is not needed, the frost capacity of the evaporator is poorer, so that the ice making evaporator is easy to frost and block, the circulating air volume of the whole ice making process is reduced, and the ice making speed is slower and slower.
In view of the above, a first aspect of the present invention is to provide a novel refrigerating and freezing apparatus capable of ensuring an air volume for an ice making apparatus and preventing a decrease in efficiency of the ice making apparatus as much as possible.
In a second aspect, the present invention provides a control method applied to the above refrigeration and freezing apparatus.
According to a first aspect of the present invention, there is provided a refrigeration and freezing apparatus comprising an ice making device, a first cooling chamber and a first evaporator; the first cooling chamber is communicated with the ice making device through a first air duct assembly; the first evaporator is vertically arranged in the first cooling chamber; wherein the content of the first and second substances,
the upper part of the first cooling chamber is provided with an air supply outlet, the lower part of the first cooling chamber is provided with a first air return opening and a second air return opening, and the second air return opening is positioned at the upper side of the first air return opening; and the first air duct assembly includes:
the air supply duct is communicated with the air supply outlet and the ice making device;
a first air return duct communicating the first air return opening and the ice making device, the first air return opening being configured to flow at least a portion of the air entering the first cooling chamber to a bottom end of the first evaporator;
a second return air duct communicating the second return air inlet with the ice making device, the second return air inlet being configured to allow at least a portion of the air entering the first cooling compartment to flow above a bottom end of the first evaporator; and
and the air duct opening and closing device is configured to alternatively conduct the first return air duct and the second return air duct or simultaneously conduct the first return air duct and the second return air duct under control.
Preferably, the refrigerating and freezing apparatus further comprises: and the temperature sensor is configured to detect the temperature of the first evaporator so as to at least conduct the second return air duct when the ice making device needs cold energy and the temperature of the first evaporator is lower than or equal to a first preset temperature.
Preferably, the refrigerating and freezing apparatus further comprises:
a first storage compartment configured to hold an item; and
a second evaporator configured to controllably provide cooling energy to the first storage compartment.
Preferably, the refrigerating and freezing device further comprises a box body and a door body;
the first storage compartment is arranged in the box body;
the door body is arranged on the box body and is configured to open or close the first storage compartment;
the ice making device is arranged on the inner side of the door body;
the first cooling chamber is arranged at the rear part or one side of the first storage compartment.
Preferably, the box body is also internally provided with a second storage compartment and a second cooling chamber;
the second cooling chamber is arranged at the rear part or one side of the second storage chamber;
the second evaporator is arranged in the second cooling chamber;
the second cooling chamber is communicated with the first storage chamber and the second storage chamber through a second air duct assembly and a third air duct assembly respectively.
Preferably, the refrigerating and freezing apparatus further comprises:
the first fan is arranged in the first cooling chamber;
the second fan is arranged in the second cooling chamber or the second air duct assembly; and
and the third fan is arranged in the second cooling chamber or the third air duct assembly.
Preferably, the refrigerating and freezing apparatus further includes a defrosting heater disposed in the first cooling chamber and configured to defrost the first evaporator.
According to a second aspect of the present invention, there is provided a control method for a refrigeration and freezing apparatus of any one of the above-described refrigerator-freezer apparatuses, comprising:
step A: when the ice making device needs cold energy, the first air return duct is conducted, and the second air return duct is closed;
and B: detecting a temperature of the first evaporator;
and C: judging whether the ice making device continuously needs cold energy or not and judging whether the temperature of the first evaporator is lower than or equal to a first preset temperature or not;
when the ice making device continuously needs cold energy and the temperature of the first evaporator is lower than or equal to the first preset temperature, entering the step D;
the step D: and the second return air duct is communicated.
Preferably, the step D further includes simultaneously shutting off the first return air duct.
Preferably, the method for controlling a refrigerating and freezing apparatus further includes, after the step D:
step E: continuously judging whether the ice making device continuously needs cold energy or not and judging whether the temperature of the first evaporator is lower than or equal to a second preset temperature or not;
when the ice making device continuously needs cold energy and the temperature of the first evaporator is lower than or equal to the second preset temperature, entering step F;
step F: enabling the first air return duct and the second air return duct to be in a turn-off state so as to stop providing cold energy for the ice making device;
step G: defrosting the first evaporator.
The present invention also provides another control method for a refrigeration and freezing apparatus according to any one of the above aspects, including:
step H: when the ice making device makes ice for the first time, the first air return duct is conducted, and the second air return duct is closed;
step I: after the first ice making is finished, detecting the temperature of the first evaporator;
step J: judging whether the temperature of the first evaporator is higher than a third preset temperature or not, and performing second ice making when the temperature of the first evaporator is higher than the third preset temperature;
step K: judging whether the temperature of the first evaporator is lower than or equal to a fourth preset temperature or not; the fourth preset temperature is greater than the third preset temperature; and when the temperature of the first evaporator is lower than or equal to the fourth preset temperature, the second return air duct is conducted.
Preferably, the fourth preset temperature is the temperature of frost blockage at the bottom of the first evaporator; the third preset temperature is the temperature of the first evaporator when the second ice making is completed.
In the refrigeration and freezing device and the control method thereof, because the first air return duct and the second air return duct are arranged, when the bottom end of the first evaporator is frosted, the air flow for making ice bypasses the bottom end of the first evaporator, and the situation that the circulating air quantity of the whole ice making is reduced and the ice making speed is slower and slower due to the frost blockage of the ice making evaporator can be prevented.
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 configuration view of a refrigerating and freezing apparatus according to an embodiment of the present invention, in which arrows indicate the flow direction of air flows;
fig. 2 is a schematic block diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention, in which arrows indicate the flow direction of air flows;
FIG. 3 is a schematic view of the positions of the first return air opening and the second return air opening relative to the first evaporator in the refrigeration and freezing apparatus of FIG. 1;
fig. 4 is a schematic block diagram of a refrigeration and freezing apparatus according to an embodiment of the present invention, in which arrows indicate the flow direction of air flows;
FIG. 5 is a schematic system diagram of the refrigeration chiller of FIG. 4;
FIG. 6 is a schematic structural view of a first evaporator;
fig. 7 is a schematic structural view of the first stand plate.
Detailed Description
Fig. 1 is a schematic configuration diagram of a refrigerating and freezing apparatus according to an embodiment of the present invention. Referring to fig. 2 and 3, an embodiment of the present invention provides a refrigerating and freezing apparatus as ice shown in fig. 1. The refrigerating and freezing device may include an ice making device 21, a first cooling chamber 22, and a first evaporator 30. The first cooling chamber 22 communicates with the ice making device 21 through a first air duct assembly. The first evaporator 30 is vertically disposed within the first cooling chamber 22. The first cooling chamber 22 has a supply air outlet at an upper portion thereof and a first return air opening 23 and a second return air opening 24 at a lower portion thereof. The second return air opening 24 is located at an upper side of the first return air opening 23. And the first air duct assembly may include a supply air duct 25, a first return air duct 26, a second return air duct 27, and an air duct opening and closing device 28.
The air duct 25 communicates the air blowing port with the ice making device 21. The first return air duct 26 communicates the first return air opening 23 and the ice making device 21, and the first return air opening 23 is configured to flow at least part of the gas entering the first cooling chamber 22 toward the bottom end of the first evaporator 30. The second return air duct 27 communicates the second return air opening 24 with the ice making device 21, and the second return air opening 24 is configured to flow at least part of the air entering the first cooling compartment 22 to above the bottom end of the first evaporator 30. The duct switching device 28 is configured to controllably open the first return air duct 26 and the second return air duct 27 alternatively or simultaneously. When the bottom end of the first evaporator 30 is frosted, the second return air duct 27 can make the ice-making air flow bypass the bottom end of the first evaporator 30, and can prevent the whole ice-making circulation air quantity from becoming smaller and the ice-making speed from becoming slower and slower due to the frost blockage of the ice-making evaporator.
In some embodiments of the present invention, the refrigeration chiller further comprises a temperature sensor 41 configured to detect the temperature of the first evaporator 30 to turn on at least the second return air duct 27 when the refrigeration capacity is required by the ice making device 21 and the temperature of the first evaporator 30 is less than or equal to a first predetermined temperature. Further, the first return air duct 26 may be closed while the second return air duct 27 is open, or the first return air duct 26 may not be closed, and it is preferable to selectively close the first return air duct 26. The duct opening and closing device 28 may be two dampers that control the first return air duct 26 and the second return air duct 27, respectively. In alternative embodiments, the first return air duct 26 and the second return air duct 27 may be turned on or off according to the time when the first evaporator 30 is operated.
In some embodiments of the present invention, as shown in fig. 4, the refrigerating and freezing apparatus further includes a first storage compartment 61 and a second evaporator 62. The first storage compartment 61 is configured to receive an item. The second evaporator 62 is configured to provide cooling energy to the first storage compartment 61 in a controlled manner. Specifically, the refrigerating and freezing device comprises a box body and a door body. The box body is internally provided with a first storage compartment 61. The door is mounted to the cabinet and configured to open or close the first storage compartment 61. The ice making device 21 is provided inside the door body. The first cooling chamber 22 is disposed at a rear portion or one side of the first storage compartment 61.
Further, a second storage compartment 63 and a second cooling chamber are arranged in the box body. The second cooling chamber is provided at a rear portion or one side of the second storage compartment 63. The second evaporator 62 is disposed in the second cooling chamber. The second cooling chamber is communicated with the first storage chamber 61 and the second storage chamber 63 through a second air duct assembly and a third air duct assembly respectively.
To facilitate the air supply, the refrigerating and freezing apparatus further includes a first fan 51, a second fan 52, and a third fan. The first fan 51 is provided in the first cooling chamber 22 to promote circulation of air flow between the first cooling chamber 22 and the ice making device 21. The second fan 52 is disposed in the second cooling chamber or the second air duct assembly to promote the circulation of air flow between the second cooling chamber and the first storage compartment 61. The third fan is disposed in the second cooling chamber or the third air duct assembly to promote the circulation of the air flow between the second cooling chamber and the second storage chamber 63. The first storage compartment 61 is preferably a refrigerator compartment and the second storage compartment 63 is preferably a freezer compartment.
In some embodiments of the present invention, the refrigerating and freezing apparatus further includes a defrosting heating wire 42 disposed in the first cooling chamber 22 and configured to defrost the first evaporator 30. The defrosting heating wire 42 may be disposed at a lower side of the first evaporator 30.
In some embodiments of the invention, as shown in fig. 5, fig. 5 is a schematic system diagram of the refrigeration freezer shown in fig. 4. The refrigeration system of the refrigerating and freezing apparatus may include a compressor 71, a condenser 72, a solenoid valve 73, a first throttle device 74, the first evaporator 30, a second throttle device 75, and the second evaporator 62. The solenoid valve 73 allows the refrigerant to sequentially flow through the first throttling device 74, the first evaporator 30, and the second evaporator 62. Alternatively, the solenoid valve may allow the refrigerant to sequentially flow through the second throttling device 75 and the second evaporator 62.
In some embodiments of the present invention, as shown in fig. 6, the first evaporator 30 may be a finned evaporator including fin portions and heat exchange tube portions. The heat exchange tube portion has a plurality of parallel arranged straight tube sections 31. The fin portion is attached to the heat exchange tube portion. The fin portion has a plurality of sub-fin portions 32 provided in this order along the longitudinal direction of the straight tube section 31; and each straight tube section 31 has a first end and a second end; the heights of the bottom ends of the plurality of sub-fin portions 32 are sequentially lowered in a direction of the straight tube section 31 from the first end toward the second end.
The first air return opening 23, the second air return opening 24, and the air supply opening are provided in the lower portion of the side wall of the first cooling chamber 22 that faces the first end of the fin evaporator straight tube section 31. When the finned evaporator is installed, the height of the lowermost row of straight tube sections 31 of the heat exchange tube parts is not lower than the height of the upper edge of the first air return opening 23.
Further, the plurality of sub-fin portions 32 are equal in length to be evenly distributed in the heat exchange tube portion in the longitudinal direction of the straight tube section 31. In at least some of the sub-fin portions 32, the arrangement density of the lower-end-portion fins of each sub-fin portion 32 is smaller than the arrangement density of the upper-end-portion-fin upper-side fins of the sub-fin portion 32. The return air resistance is obviously reduced. Preferably, the lower end portion fins of the sub-fin portions 32 having lower bottom ends may be arranged at a lower density.
In some specific embodiments of the invention, the plurality of sub-fin portions 32 may include a first sub-fin portion, a second sub-fin portion and a third sub-fin portion, and the heights of the bottom ends are sequentially reduced. The bottom ends of the third sub-fin portions may be mounted to the straight tube sections 31 of the lowermost row. The bottom ends of the second sub-fin portions may be mounted to the second row of straight tube sections 31 from below upward. The bottom end of the first sub-fin portion may be mounted to the third row of straight tube sections 31 from below upward. Further, all the fins attached to the third row of straight tube sections 31 from below to above are equal in density and have the first density. All the fins mounted on the second row of straight tube sections 31 from below to above are equal in density and have the second density. All the fins mounted on the straight tube sections 31 in the first row from bottom to top are equal in density and have the third density. Further, the third density may be equal to the second density, and may be half of the first density. That is, of all the fins of the second sub-fin portion and the third sub-fin portion, for every adjacent two fins, the lower end of one fin is mounted to the third row of straight tube sections 31 from below to above, and the other fin is formed to continue extending to the lower side.
The defrosting heating wire 42 is installed to the fin evaporator through the first and second bracket plates 33 and 34. As shown in fig. 7, the first bracket plate 33 is vertically disposed, and the upper end of the first bracket plate 33 is fitted to the first end of the one or more straight tube sections 31 at the lower end of the heat exchange tube part; the first bracket plate 33 is provided with a vent hole 36 to prevent the blockage of the return air. The second brace plate 34 is vertically disposed, and the second brace plate 34 is mounted to the second ends of the plurality of straight tube sections 31 of the heat exchange tube portion. The defrosting heating wire 42 is installed at the lower end of the first hanger plate 33 and the lower end of the second hanger plate 34. The temperature sensor 41 is provided at the second end of the uppermost one of the straight tube sections 31. Specifically, the fin portions are provided at respective positions thereof with notches in which the temperature sensors 41 are located.
The embodiment of the invention also provides a control method for the refrigeration and freezing device in any one of the embodiments. The control method of the refrigeration and freezing device can comprise the following steps:
step A: when the ice making device 21 requires cooling energy, the first return air duct 26 is opened and the second return air duct 27 is closed. And simultaneously operates the first evaporator 30 and the first fan 51.
And B: the temperature of the first evaporator 30 is detected.
And C: it is judged whether the ice making device 21 continues to require the cooling capacity and whether the temperature of the first evaporator 30 is lower than or equal to the first preset temperature. The first preset temperature may be a temperature of frost plug at the bottom of the first evaporator 30.
When the ice making device 21 continues to require cooling energy and the temperature of the first evaporator 30 is lower than or equal to the first preset temperature, step D is entered.
Step D: and the second return air duct 27 is conducted. Preferably, step D further includes simultaneously shutting off the first return air duct 26.
In some preferred embodiments of the present invention, the method for controlling a refrigeration and freezing apparatus further includes, after step D:
step E: it is continuously determined whether the ice making device 21 continuously requires the cooling capacity and whether the temperature of the first evaporator 30 is lower than or equal to the second preset temperature. The second preset temperature may be a temperature of the first evaporator 30 at the completion of the second ice-making.
When the ice making device 21 continues to require cooling energy and the temperature of the first evaporator 30 is lower than or equal to the second preset temperature, step F is entered.
Step F: the first return air duct 26 and the second return air duct 27 are both turned off to stop the supply of cold to the ice making device 21. The first evaporator 30 and the first fan 51 stop operating.
Step G: the first evaporator 30 is defrosted. The first evaporator 30 may be defrosted and returned to step a.
Further, in step C, when the ice making device 21 continues to require cooling energy and the temperature of the first evaporator 30 is higher than the first preset temperature, step C is performed in a loop. In step C, when the ice making device 21 stops requiring cooling energy and the temperature of the first evaporator 30 is higher than the first preset temperature, the process may return to step a. In step C, when the ice making device 21 stops requiring cooling energy and the temperature of the first evaporator 30 is lower than or equal to the first preset temperature, step G may be entered.
An embodiment of the present invention further provides another control method for a refrigeration and freezing apparatus in any one of the above embodiments, including:
step H: when the ice making device 21 makes ice for the first time, the first return air duct 26 is opened and the second return air duct 27 is closed.
Step I: after the first ice making is finished, the temperature of the first evaporator 30 is detected.
Step J: it is judged whether the temperature of the first evaporator 30 is higher than a third preset temperature, and when the temperature of the first evaporator 30 is higher than the third preset temperature, the second ice making is performed.
Step K: it is judged whether the temperature of the first evaporator 30 is lower than or equal to the fourth preset temperature. The fourth preset temperature is greater than the third preset temperature. And when the temperature of the first evaporator 30 is lower than or equal to the fourth preset temperature, the second return air duct 27 is conducted. Preferably, the first return air duct 26 is turned off at the same time.
Preferably, the fourth preset temperature is the temperature of frost plug at the bottom of the first evaporator 30. The third preset temperature is the temperature of the first evaporator 30 when the second ice making is completed. The third predetermined temperature and the fourth predetermined temperature may be determined from a plurality of tests. The fourth preset temperature is normally set higher than the temperature of first evaporator 30 detected after the end of the first ice making.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived 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 refrigerating and freezing device comprises an ice making device, a first cooling chamber and a first evaporator; the first cooling chamber is communicated with the ice making device through a first air duct assembly; the first evaporator is vertically arranged in the first cooling chamber; the upper part of the first cooling chamber is provided with an air supply outlet; the cooling system is characterized in that a first air return opening and a second air return opening are formed in the lower portion of the first cooling chamber, and the second air return opening is located on the upper side of the first air return opening; and the first air duct assembly includes:
the air supply duct is communicated with the air supply outlet and the ice making device;
a first air return duct communicating the first air return opening and the ice making device, the first air return opening being configured to flow at least a portion of the air entering the first cooling chamber to a bottom end of the first evaporator;
a second return air duct communicating the second return air inlet with the ice making device, the second return air inlet being configured to allow at least a portion of the air entering the first cooling compartment to flow above a bottom end of the first evaporator; and
and the air duct opening and closing device is configured to alternatively conduct the first return air duct and the second return air duct or simultaneously conduct the first return air duct and the second return air duct under control.
2. A refrigerator-freezer as claimed in claim 1, further comprising:
and the temperature sensor is configured to detect the temperature of the first evaporator so as to at least conduct the second return air duct when the ice making device needs cold energy and the temperature of the first evaporator is lower than or equal to a first preset temperature.
3. A refrigerator-freezer as claimed in claim 1, further comprising:
a first storage compartment configured to hold an item; and
a second evaporator configured to controllably provide cooling energy to the first storage compartment.
4. A refrigerating and freezing apparatus as claimed in claim 3, further comprising a cabinet and a door;
the first storage compartment is arranged in the box body;
the door body is arranged on the box body and is configured to open or close the first storage compartment;
the ice making device is arranged on the inner side of the door body;
the first cooling chamber is arranged at the rear part or one side of the first storage compartment.
5. A refrigerator-freezer according to claim 4,
the box body is also internally provided with a second storage compartment and a second cooling chamber;
the second cooling chamber is arranged at the rear part or one side of the second storage chamber;
the second evaporator is arranged in the second cooling chamber;
the second cooling chamber is communicated with the first storage chamber and the second storage chamber through a second air duct assembly and a third air duct assembly respectively.
6. A refrigerator-freezer as claimed in claim 1, further comprising:
and the defrosting heating wire is arranged in the first cooling chamber and is configured to defrost the first evaporator.
7. A control method for a refrigeration freezer of any one of claims 1 to 6, comprising:
step A: when the ice making device needs cold energy, the first air return duct is conducted, and the second air return duct is closed;
and B: detecting a temperature of the first evaporator;
and C: judging whether the ice making device continuously needs cold energy or not and judging whether the temperature of the first evaporator is lower than or equal to a first preset temperature or not;
when the ice making device continuously needs cold energy and the temperature of the first evaporator is lower than or equal to the first preset temperature, entering the step D;
the step D: and the second return air duct is communicated.
8. A control method for a refrigerating and freezing apparatus according to claim 7,
step D further comprises simultaneously shutting off the first return air duct.
9. A control method for a refrigeration and freezing apparatus according to claim 7 or 8, further comprising, after the step D:
step E: continuously judging whether the ice making device continuously needs cold energy or not and judging whether the temperature of the first evaporator is lower than or equal to a second preset temperature or not;
when the ice making device continuously needs cold energy and the temperature of the first evaporator is lower than or equal to the second preset temperature, entering step F;
step F: enabling the first air return duct and the second air return duct to be in a turn-off state so as to stop providing cold energy for the ice making device;
step G: defrosting the first evaporator.
10. A control method for a refrigeration freezer of any one of claims 1 to 6, comprising:
step H: when the ice making device makes ice for the first time, the first air return duct is conducted, and the second air return duct is closed;
step I: after the first ice making is finished, detecting the temperature of the first evaporator;
step J: judging whether the temperature of the first evaporator is higher than a third preset temperature or not, and performing second ice making when the temperature of the first evaporator is higher than the third preset temperature;
step K: judging whether the temperature of the first evaporator is lower than or equal to a fourth preset temperature or not; the fourth preset temperature is greater than the third preset temperature; and when the temperature of the first evaporator is lower than or equal to the fourth preset temperature, the second return air duct is conducted.
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| CN201811386862.7A CN109751814B (en) | 2018-11-20 | 2018-11-20 | Refrigerating and freezing device and control method thereof |
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| CN201811386862.7A CN109751814B (en) | 2018-11-20 | 2018-11-20 | Refrigerating and freezing device and control method thereof |
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| CN109751814B true CN109751814B (en) | 2020-12-15 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2376385A1 (en) * | 1977-01-03 | 1978-07-28 | Gen Electric | HOUSEHOLD REFRIGERATOR WITH AIR CIRCULATION |
| CN102213524A (en) * | 2011-05-31 | 2011-10-12 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN204944006U (en) * | 2015-07-31 | 2016-01-06 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN106288594A (en) * | 2015-05-29 | 2017-01-04 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN106885420A (en) * | 2017-03-24 | 2017-06-23 | 青岛海尔股份有限公司 | Refrigerator |
-
2018
- 2018-11-20 CN CN201811386862.7A patent/CN109751814B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2376385A1 (en) * | 1977-01-03 | 1978-07-28 | Gen Electric | HOUSEHOLD REFRIGERATOR WITH AIR CIRCULATION |
| CN102213524A (en) * | 2011-05-31 | 2011-10-12 | 合肥美的荣事达电冰箱有限公司 | Refrigerator |
| CN106288594A (en) * | 2015-05-29 | 2017-01-04 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN204944006U (en) * | 2015-07-31 | 2016-01-06 | 青岛海尔智能技术研发有限公司 | Refrigerator |
| CN106885420A (en) * | 2017-03-24 | 2017-06-23 | 青岛海尔股份有限公司 | Refrigerator |
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| CN109751814A (en) | 2019-05-14 |
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Address after: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee after: Haier Smart Home Co., Ltd. Address before: 266101 Haier Industrial Park, 1 Haier Road, Laoshan District, Shandong, Qingdao Patentee before: Qingdao Haier Joint Stock Co.,Ltd. |