CN105698484A - Control method and control device for single-system air-cooling refrigerator, and refrigerator - Google Patents
Control method and control device for single-system air-cooling refrigerator, and refrigerator Download PDFInfo
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- CN105698484A CN105698484A CN201610219286.1A CN201610219286A CN105698484A CN 105698484 A CN105698484 A CN 105698484A CN 201610219286 A CN201610219286 A CN 201610219286A CN 105698484 A CN105698484 A CN 105698484A
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- refrigerator
- temperature
- cold room
- air duct
- main air
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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
- F25D29/003—Arrangement or mounting of control or safety devices for movable 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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
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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
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/14—Sensors measuring the temperature outside the refrigerator or freezer
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- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The embodiment of the invention provides a control method and a control device for a single-system air-cooling refrigerator, and a refrigerator, and relates to the technical field of refrigerators. According to the control method, the control device and the refrigerator, a temperature in a refrigeration chamber can be ensured in case of a low external environment temperature, thus foods in the refrigeration chamber are prevented from freezing damages. The method comprises the following steps: obtaining the external environment temperature of the refrigerator and the temperature of the refrigeration chamber of the refrigerator; if the external environment temperature is less than a first temperature threshold value, the temperature of the refrigeration chamber is less than a second temperature threshold value, and a compressor of the refrigerator is halted, controlling a heating element in a main air duct of the refrigerator to work; obtaining a temperature in the main air duct; and if the temperature in the main air duct is greater than a third temperature threshold value, controlling the refrigerator to enter a low-temperature compensation mode, wherein the low-temperature compensation mode comprises that a fan of the refrigerator runs in a first direction, an air door of the refrigeration chamber is opened, an air return port of the refrigeration chamber is opened, and an air return port of a freezing chamber of the chamber is closed; and the first direction is opposite to the running direction of the fan during refrigeration of the refrigerator. The control method and the control device, which are disclosed by the invention, are used for a refrigerator.
Description
Technical field
The present invention relates to refrigerator art, particularly relate to the control method of a kind of single system wind cooling refrigerator, control device and refrigerator。
Background technology
Along with improving constantly of people's living standard, refrigerator has become as people and lives indispensable household electrical appliance。Refrigerator generally comprises cold room and refrigerating chamber, is separated by central sill foaming layer between the two, and the temperature of cold room is generally kept in 4 DEG C～5 DEG C refrigeration requirements that can reach food, and the temperature of refrigerating chamber generally need to reach the refrigerating effect of-18 DEG C of guarantee food。But when ambient temperature is relatively low, such as, when ambient temperature is lower than 4 DEG C, cold room avoids the need for freezing again, and refrigerating chamber also needs to freeze owing to being not reaching to preset temperature, although now can close the air-supply passage of cold room, no longer cold room be freezed, but the cold air of refrigerating chamber may penetrate in cold room by central sill foaming layer, the temperature causing cold room reduces further, even below 0 DEG C, so may result in the food putting into cold room and is damaged by frost。
Summary of the invention
Embodiments of the invention provide the control method of a kind of single system wind cooling refrigerator, control device and refrigerator, it is possible to when ambient temperature is relatively low, it is ensured that the temperature in cold room, it is prevented that the food in cold room is damaged by frost。
For reaching above-mentioned purpose, embodiments of the invention adopt the following technical scheme that
On the one hand, the control method of a kind of single system wind cooling refrigerator of the embodiment of the present invention, described method includes:
Obtain the ambient temperature of refrigerator and the temperature of the cold room of refrigerator；
If described ambient temperature is less than the first temperature threshold, the temperature of described cold room is less than the second temperature threshold, and during the compressor shutdown of described refrigerator, controls the heating member work in the main air duct of described refrigerator；
Obtain the temperature in described main air duct；
If the temperature in described main air duct is more than three temperature thresholds, control described refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of described refrigerator operates with first direction, the air door of described cold room is opened, the return air inlet of described cold room is opened, and the return air inlet of the refrigerating chamber of described refrigerator is closed；Wherein, when described first direction is with described refrigeration for refrigerator, the rotation direction of blower fan is contrary。
On the other hand, the embodiment of the present invention provides the control device of a kind of single system wind cooling refrigerator, including:
First acquiring unit, is used for obtaining the temperature of the cold room of the ambient temperature of refrigerator and refrigerator；
First control unit, if for described ambient temperature less than the first temperature threshold, the temperature of described cold room is less than the second temperature threshold, and during the compressor shutdown of described refrigerator, controls the heating member work in the main air duct of described refrigerator；
Second acquisition unit, for obtaining the temperature in described main air duct；
Second control unit, if during for the temperature in described main air duct more than three temperature thresholds, control described refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of described refrigerator operates with first direction, the air door of described cold room is opened, the return air inlet of described cold room is opened, and the return air inlet of the refrigerating chamber of described refrigerator is closed；Wherein, when described first direction is with described refrigeration for refrigerator, the rotation direction of blower fan is contrary。
Another further aspect, the embodiment of the present invention provides a kind of single system wind cooling refrigerator, including any one described control device above-mentioned。
The embodiment of the present invention provides the control method of a kind of single system wind cooling refrigerator, controls device and refrigerator, and described method includes: first obtain the ambient temperature of refrigerator and the temperature of the cold room of refrigerator；If ambient temperature is less than the first temperature threshold, the temperature of cold room is less than the second temperature threshold, and during the compressor shutdown of refrigerator, controls the heating member work in the main air duct of refrigerator；Then the temperature in main air duct is obtained；If the temperature in main air duct is more than three temperature thresholds, controlling refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, and the air door of cold room is opened, the return air inlet of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Wherein, when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary。Compared to prior art; in the embodiment of the present invention when the temperature of ambient temperature and the cold room of refrigerator is all relatively low; when the compressor shutdown of refrigerator; control the air that the work of the heating member in the main air duct of refrigerator is heated in main air duct; when the temperature in main air duct is more than three temperature thresholds; the blower fan controlling refrigerator reverses, and the air door of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Namely open the air-supply passage of cold room, close the air-supply passage of refrigerating chamber, hot blast in main air duct is sent in cold room, improve the temperature of cold room, it is achieved in that when ambient temperature is relatively low, it is ensured that the temperature in cold room, it is prevented that the purpose that the food in cold room is damaged by frost。
Accompanying drawing explanation
In order to be illustrated more clearly that the embodiment of the present invention or technical scheme of the prior art, the accompanying drawing used required in embodiment or description of the prior art will be briefly described below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the premise not paying creative work, it is also possible to obtain other accompanying drawing according to these accompanying drawings。
The control method flow chart of a kind of single system wind cooling refrigerator that Fig. 1 provides for the embodiment of the present invention；
The control method flow chart of a kind of single system wind cooling refrigerator that Fig. 2 provides for another embodiment of the present invention；
Wind circulation route schematic diagram during the refrigeration for refrigerator that Fig. 3 provides for prior art；
The low temp compensating pattern that Fig. 4 provides for the embodiment of the present invention open after wind circulation route schematic diagram；
Fig. 5 is the enlarged drawing of a-quadrant in Fig. 4；
The control method flow chart of a kind of single system wind cooling refrigerator that Fig. 6 provides for further embodiment of this invention；
The control device block diagram of a kind of single system wind cooling refrigerator that Fig. 7 provides for the embodiment of the present invention。
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described, it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments。Based on the embodiment in the present invention, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of protection of the invention。
The embodiment of the present invention provides the control method of a kind of single system wind cooling refrigerator, as it is shown in figure 1, described method includes:
Step 101, obtain the temperature of the cold room of the ambient temperature of refrigerator and refrigerator。
The embodiment of the present invention does not limit for the sequencing obtaining the temperature of the cold room of the ambient temperature of refrigerator and refrigerator。In actual applications, the ambient temperature of refrigerator and the temperature of the cold room of refrigerator are gathered typically via temperature sensor。
If step 102 ambient temperature is less than the first temperature threshold, the temperature of cold room is less than the second temperature threshold, and during the compressor shutdown of refrigerator, controls the heating member work in the main air duct of refrigerator。
Wherein, described first temperature threshold and described second temperature threshold are the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。Consider the temperature variations of cold room in refrigeration for refrigerator process, it is considered that when the temperature of cold room is less than 0 DEG C, cold room is accomplished by carrying out temperature-compensating to prevent the food in cold room to be damaged by frost, thus the second temperature threshold is typically chosen as 0 DEG C～-1 DEG C。
Example, first temperature threshold is 10 DEG C, second temperature threshold is 0 DEG C, when getting ambient temperature T1 less than 10 DEG C, then think that ambient temperature is relatively low, when getting the temperature T2 of cold room less than 0 DEG C, then show that the temperature of now cold room is too low, it is necessary to improve temperature and prevent the food in cold room to be damaged by frost；When the compressor of refrigerator is in stopped status, then it represents that refrigerator is not now freezing, at this moment can control the heating member work in the main air duct of refrigerator, heat the air in main air duct。
It should be noted that described heating member can be the heater strip that wind cooling refrigerator arranges on an evaporator to defrost, it is also possible to being the heating member being exclusively provided in main air duct, this is not limited by the embodiment of the present invention。It is also preferred that the left when adopt wind cooling refrigerator vaporizer on heater strip as heating member time, it is possible to heating member need not be additionally set, thus the parts decreased in refrigerator quantity is set, save the cost of refrigerator。
Step 103, the temperature obtained in main air duct。
After heating member in the main air duct utilizing refrigerator heated the air in main air duct, it is possible to use temperature sensor gathers the temperature in main air duct, in order to judge whether the temperature in main air duct has had raising。
If the temperature in step 104 main air duct is more than three temperature thresholds, controlling refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, and the air door of cold room is opened, the return air inlet of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Wherein, when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary。
Wherein, described 3rd temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。It should be noted that described 3rd temperature threshold is more than described second temperature threshold。Example, the 3rd temperature threshold is 5 DEG C, when the temperature T3 got in main air duct is more than 5 DEG C, then it is assumed that the air in main air duct is heated, now can carry out the temperature-compensating of cold room, thus control refrigerator and enter low temp compensating pattern。
Described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, and when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary, and namely the blower fan of refrigerator reverses；The air door of cold room is opened, and the return air inlet of cold room is opened, and namely the air-supply passage of cold room is opened；The return air inlet of the refrigerating chamber of refrigerator is closed, and namely the air-supply passage of refrigerating chamber is closed。
As shown in Figure 3 and Figure 4, wind circulation route schematic diagram when Fig. 3 is that in prior art, refrigerator 30 freezes, Fig. 4 is the wind circulation route schematic diagram in the embodiment of the present invention after the unlatching of low temp compensating pattern。When in prior art, refrigerator 30 freezes, blower fan rotates forward, steam in refrigerating chamber 32 and cold room 31 is drawn in main air duct respectively through the return air inlet bottom the return air inlet bottom refrigerating chamber 32 and cold room 31 by blower fan, these steam become cold air after the evaporator heat exchange being positioned at main air duct, are respectively fed in refrigerating chamber 32 and cold room 31 then through by the air outlet of refrigerating chamber 32 air outlet and cold room 31。And in embodiments of the present invention, owing to only cold room 31 need to be carried out temperature-compensating, so that open the air-supply passage of cold room 31, close the air-supply passage of refrigerating chamber 32, blower fan is utilized to reverse, the steam produced in main air duct is sent in cold room 31 via the return air inlet bottom cold room 31, owing to hot-air density is little, thus enter into the hot-air in cold room 31 and can move upward, the temperature making whole cold room 31 rises, the temperature-compensating to cold room 31 is realized, it is prevented that the food in cold room 31 is damaged by frost with this。
It should be noted that, if in a step 102, just control refrigerator after controlling the heating member work in the main air duct of refrigerator immediately and enter low temp compensating pattern, then can cause that the also not heated cold wind in the main air duct of refrigerator blows to cold room, so may reduce the temperature of cold room, the degree that the food in aggravation cold room is damaged by frost further。Thus, in a step 102, after controlling the heating member work in the main air duct of refrigerator, also need to perform step 103, obtain the temperature in the main air duct of refrigerator, when the temperature in the main air duct of refrigerator is more than three temperature thresholds, namely think that the air in main air duct is heated, at this moment can control refrigerator and enter low temp compensating pattern, deliver in cold room by air heated in air channel, to improve the temperature in cold room。
So; compared to prior art; in the embodiment of the present invention when the temperature of ambient temperature and the cold room of refrigerator is all relatively low; when the compressor shutdown of refrigerator; controlling the air that the work of the heating member in the main air duct of refrigerator is heated in main air duct, when the temperature in main air duct is more than three temperature thresholds, the blower fan controlling refrigerator reverses; the air door of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Namely open the air-supply passage of cold room, close the air-supply passage of refrigerating chamber, hot blast in main air duct is sent in cold room, improve the temperature of cold room, it is achieved in that when ambient temperature is relatively low, it is ensured that the temperature in cold room, it is prevented that the purpose that the food in cold room is damaged by frost。
Further, as in figure 2 it is shown, after controlling refrigerator and entering low temp compensating pattern, described method also includes:
Step 105, obtain cold room temperature。
If the temperature of step 106 cold room is more than or equal to four temperature thresholds, controlling refrigerator and exit low temp compensating pattern, wherein, the 4th temperature threshold is more than the second temperature threshold。
Described 4th temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。
After controlling refrigerator and entering low temp compensating pattern, owing to the hot blast in main air duct has been delivered in cold room by blower fan so that the temperature of cold room raises。And the too high cold storage effect that can destroy of the temperature of cold room, thus can after controlling refrigerator and entering low temp compensating pattern, the temperature of a cold room is obtained at interval of Preset Time, when the temperature of cold room is more than or equal to four temperature thresholds, control refrigerator and exit low temp compensating pattern, namely blower fan stops reversing, and heating member quits work。Which prevent temperature of refrigerating chamber too high and destroy cold storage effect。
Optionally, after controlling refrigerator and entering low temp compensating pattern, described method also includes: obtain the temperature in main air duct；If the temperature in main air duct is more than or equal to five temperature thresholds, controlling refrigerator and exit low temp compensating pattern, wherein, the 5th temperature threshold is more than the 3rd temperature threshold。
Described 5th temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。
Owing to low temp compensating is to deliver in cold room by the hot blast in main air duct, improve the temperature in cold room, if thus the temperature in main air duct more than or equal to five temperature thresholds time, namely when the temperature in main air duct is higher, it is believed that the temperature in cold room has also been increased to suitable degree, thus now can control refrigerator and exit low temp compensating pattern, stop continuing cold room is carried out temperature-compensating, it is prevented that destroy cold storage effect owing to temperature of refrigerating chamber is too high。
Further, with reference to shown in Fig. 5, Fig. 5 is the enlarged drawing of a-quadrant in Fig. 4, and refrigerator 30 includes weatherseal, and weatherseal is arranged on return air inlet 321 place of refrigerating chamber 32；The return air inlet 321 of refrigerating chamber 32 can be closed by described weatherseal。In low temp compensating pattern, in order to prevent the steam in main air duct from entering in refrigerating chamber 32, it is necessary to utilize weatherseal to be closed by the return air inlet 321 of refrigerating chamber 32。In actual applications, weatherseal can be air curtain or air door etc., and this is not limited by the embodiment of the present invention, it is contemplated that the return air inlet 321 of the refrigerating chamber 32 of general refrigerator is relatively big, and air door arranges more difficult, thus it is also preferred that the left adopt air curtain as weatherseal。
Another embodiment of the present invention provides the control method of a kind of single system wind cooling refrigerator, and as shown in Figure 6, described method includes:
Step 601, obtain refrigerator ambient temperature。
Step 602, judge that whether ambient temperature is less than the first temperature threshold, if ambient temperature is less than the first temperature threshold, then perform step 603；Otherwise perform step 613。
Wherein, described first temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。Example, the first temperature threshold is 10 DEG C, when getting ambient temperature T1 less than 10 DEG C, then it is assumed that ambient temperature is relatively low, it is possible to there will be the problem that the too low food caused in cold room of temperature of refrigerating chamber is damaged by frost。
Step 603, obtain the temperature of cold room of refrigerator。
Step 604, judge that whether the temperature of cold room is less than the second temperature threshold, if the temperature of cold room is less than the second temperature threshold, then perform step 605；Otherwise perform step 613。
Wherein, described second temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。Example, the second temperature threshold is 0 DEG C, when getting the temperature T2 of cold room less than 0 DEG C, then it is assumed that now the temperature of cold room is too low, it is necessary to improves temperature and prevents the food in cold room to be damaged by frost。
Step 605, judge whether the compressor of refrigerator shuts down, if the compressor shutdown of refrigerator, then perform step 606；Otherwise perform step 613。
When the compressor of refrigerator is in stopped status, then it represents that refrigerator is not now freezing, at this moment can control the heating member work in the main air duct of refrigerator, heat the air in main air duct。
Step 606, control refrigerator main air duct in heating member work。
Described heating member can be the heater strip that wind cooling refrigerator arranges on an evaporator to defrost, it is also possible to being the heating member being exclusively provided in main air duct, this is not limited by the embodiment of the present invention。It is also preferred that the left when adopt wind cooling refrigerator vaporizer on heater strip as heating member time, it is possible to heating member need not be additionally set, thus the parts decreased in refrigerator quantity is set, save the cost of refrigerator。
Step 607, the temperature obtained in main air duct。
Owing to vaporizer is positioned at main air duct, thus can directly obtain the temperature of vaporizer as the temperature in main air duct。
Whether step 608, the temperature judged in main air duct be more than the 3rd temperature threshold, if the temperature in main air duct is more than the 3rd temperature threshold, then performs step 609；Otherwise perform step 607。
Wherein, described 3rd temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。Example, the 3rd temperature threshold is 5 DEG C, when getting the temperature of vaporizer more than 5 DEG C, then it is assumed that the air in main air duct is heated, now can carry out the temperature-compensating of cold room, thus control refrigerator and enter low temp compensating pattern。
Step 609, control refrigerator enter low temp compensating pattern, and described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, and the air door of cold room is opened, and the return air inlet of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Wherein, when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary。
Concrete, described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, and when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary, and namely the blower fan of refrigerator reverses；The air door of cold room is opened, and the return air inlet of cold room is opened, and namely the air-supply passage of cold room is opened；The return air inlet of the refrigerating chamber of refrigerator is closed, and namely the air-supply passage of refrigerating chamber is closed。Blower fan is utilized to reverse, the steam produced in main air duct is sent in cold room via the return air inlet bottom cold room, owing to hot-air density is little, thus enter into the hot-air in cold room and can move upward, the temperature making whole cold room rises, the temperature-compensating to cold room is realized, it is prevented that the food in cold room is damaged by frost with this。
Step 610, obtain cold room temperature。
Step 611, judging that whether the temperature of cold room is more than or equal to the 4th temperature threshold, wherein, described 4th temperature threshold is more than described second temperature threshold；If the temperature of cold room is more than or equal to the 4th temperature threshold, then perform step 612；Otherwise perform step 610。
Described 4th temperature threshold is the value pre-set, and those skilled in the art can be set according to practical situation, and this is not limited by the embodiment of the present invention。
After controlling refrigerator and entering low temp compensating pattern, owing to the hot blast in main air duct has been delivered in cold room by blower fan so that the temperature of cold room raises。And the too high cold storage effect that can destroy of the temperature of cold room, thus can after controlling refrigerator and entering low temp compensating pattern, the temperature of a cold room is obtained at interval of Preset Time, when the temperature of cold room is more than or equal to four temperature thresholds, control refrigerator and exit low temp compensating pattern, namely blower fan stops reversing, and heating member quits work。Which prevent temperature of refrigerating chamber too high and destroy cold storage effect。
Step 612, control refrigerator exit low temp compensating pattern。
Control refrigerator exits low temp compensating pattern and is specially control blower fan stopping reverse, controls heating member and quits work。
Step 613, control refrigerator do not enter low temp compensating pattern。
The control method of the single system wind cooling refrigerator that the embodiment of the present invention provides, described method includes: first obtain the ambient temperature of refrigerator and the temperature of the cold room of refrigerator；If ambient temperature is less than the first temperature threshold, the temperature of cold room is less than the second temperature threshold, and during the compressor shutdown of refrigerator, controls the heating member work in the main air duct of refrigerator；Then the temperature in main air duct is obtained；If the temperature in main air duct is more than three temperature thresholds, controlling refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, and the air door of cold room is opened, the return air inlet of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Wherein, when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary。Compared to prior art; in the embodiment of the present invention when the temperature of ambient temperature and the cold room of refrigerator is all relatively low; when the compressor shutdown of refrigerator; control the air that the work of the heating member in the main air duct of refrigerator is heated in main air duct; when the temperature in main air duct is more than three temperature thresholds; the blower fan controlling refrigerator reverses, and the air door of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Namely open the air-supply passage of cold room, close the air-supply passage of refrigerating chamber, hot blast in main air duct is sent in cold room, improve the temperature of cold room, it is achieved in that when ambient temperature is relatively low, it is ensured that the temperature in cold room, it is prevented that the purpose that the food in cold room is damaged by frost。
Further embodiment of this invention provides the control device 70 of a kind of single system wind cooling refrigerator, as it is shown in fig. 7, comprises:
First acquiring unit 701, is used for obtaining the temperature of the cold room of the ambient temperature of refrigerator and refrigerator；
First control unit 702, if for ambient temperature less than the first temperature threshold, the temperature of cold room is less than the second temperature threshold, and during the compressor shutdown of refrigerator, controls the heating member work in the main air duct of refrigerator；
Second acquisition unit 703, for obtaining the temperature in main air duct；
Second control unit 704, if during for the temperature in main air duct more than three temperature thresholds, control refrigerator and enter low temp compensating pattern, low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, the air door of cold room is opened, the return air inlet of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Wherein, when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary。
Further, after controlling refrigerator and entering low temp compensating pattern, the first acquiring unit 701 is additionally operable to obtain the temperature of cold room；
If the first control unit 702 is additionally operable to the temperature of cold room more than or equal to four temperature thresholds, controlling refrigerator and exit low temp compensating pattern, wherein, the 4th temperature threshold is more than the second temperature threshold。
Optionally, after controlling refrigerator and entering low temp compensating pattern, second acquisition unit 703 is additionally operable to obtain the temperature in main air duct；
If the second control unit 704 is additionally operable to the temperature in main air duct more than or equal to five temperature thresholds, controlling refrigerator and exit low temp compensating pattern, wherein, the 5th temperature threshold is more than the 3rd temperature threshold。
Further, refrigerator includes weatherseal, and weatherseal is arranged on the return air inlet place of refrigerating chamber；The return air inlet of refrigerating chamber can be closed by weatherseal。
It is also preferred that the left described weatherseal is air curtain。
Further, heating member arranges heater strip on an evaporator when being defroster。
Optionally, described second temperature threshold is 0 DEG C～-1 DEG C。
The control device of the single system wind cooling refrigerator that the embodiment of the present invention provides, described device includes: obtain the ambient temperature of refrigerator and the temperature of the cold room of refrigerator first with the first acquiring unit；If ambient temperature is less than the first temperature threshold, the temperature of cold room is less than the second temperature threshold, and during the compressor shutdown of refrigerator, utilizes the first control unit to control the heating member work in the main air duct of refrigerator；Then second acquisition unit is utilized to obtain the temperature in main air duct；If the temperature in main air duct is more than three temperature thresholds, utilize the second control unit to control refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of refrigerator operates with first direction, the air door of cold room is opened, the return air inlet of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Wherein, when described first direction is with refrigeration for refrigerator, the rotation direction of blower fan is contrary。Compared to prior art; in the embodiment of the present invention when the temperature of ambient temperature and the cold room of refrigerator is all relatively low; when the compressor shutdown of refrigerator; control the air that the work of the heating member in the main air duct of refrigerator is heated in main air duct; when the temperature in main air duct is more than three temperature thresholds; the blower fan controlling refrigerator reverses, and the air door of cold room is opened, and the return air inlet of the refrigerating chamber of refrigerator is closed；Namely open the air-supply passage of cold room, close the air-supply passage of refrigerating chamber, hot blast in main air duct is sent in cold room, improve the temperature of cold room, it is achieved in that when ambient temperature is relatively low, it is ensured that the temperature in cold room, it is prevented that the purpose that the food in cold room is damaged by frost。
Yet another embodiment of the invention provides a kind of single system wind cooling refrigerator, including any one described control device above-mentioned。
The above; being only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, any those familiar with the art is in the technical scope that the invention discloses; change can be readily occurred in or replace, all should be encompassed within protection scope of the present invention。Therefore, protection scope of the present invention should be as the criterion with described scope of the claims。
Claims (11)
1. the control method of a single system wind cooling refrigerator, it is characterised in that described method includes:
Obtain the ambient temperature of refrigerator and the temperature of the cold room of refrigerator；
If described ambient temperature is less than the first temperature threshold, the temperature of described cold room is less than the second temperature threshold, and during the compressor shutdown of described refrigerator, controls the heating member work in the main air duct of described refrigerator；
Obtain the temperature in described main air duct；
If the temperature in described main air duct is more than three temperature thresholds, control described refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of described refrigerator operates with first direction, the air door of described cold room is opened, the return air inlet of described cold room is opened, and the return air inlet of the refrigerating chamber of described refrigerator is closed；Wherein, when described first direction is with described refrigeration for refrigerator, the rotation direction of blower fan is contrary。
2. control method according to claim 1, it is characterised in that after the described refrigerator of described control enters low temp compensating pattern, described method also includes:
Obtain the temperature of described cold room；
If the temperature of described cold room is more than or equal to four temperature thresholds, controlling described refrigerator and exit described low temp compensating pattern, wherein, described 4th temperature threshold is more than described second temperature threshold。
3. control method according to claim 1, it is characterised in that after the described refrigerator of described control enters low temp compensating pattern, described method also includes:
Obtain the temperature in described main air duct；
If the temperature in described main air duct is more than or equal to five temperature thresholds, controlling described refrigerator and exit described low temp compensating pattern, wherein, described 5th temperature threshold is more than described 3rd temperature threshold。
4. control method according to claim 1, it is characterised in that described refrigerator includes weatherseal, described weatherseal is arranged on the return air inlet place of described refrigerating chamber；The return air inlet of described refrigerating chamber can be closed by described weatherseal。
5. the control device of a single system wind cooling refrigerator, it is characterised in that including:
First acquiring unit, is used for obtaining the temperature of the cold room of the ambient temperature of refrigerator and refrigerator；
First control unit, if for described ambient temperature less than the first temperature threshold, the temperature of described cold room is less than the second temperature threshold, and during the compressor shutdown of described refrigerator, controls the heating member work in the main air duct of described refrigerator；
Second acquisition unit, for obtaining the temperature in described main air duct；
Second control unit, if during for the temperature in described main air duct more than three temperature thresholds, control described refrigerator and enter low temp compensating pattern, described low temp compensating pattern includes: the blower fan of described refrigerator operates with first direction, the air door of described cold room is opened, the return air inlet of described cold room is opened, and the return air inlet of the refrigerating chamber of described refrigerator is closed；Wherein, when described first direction is with described refrigeration for refrigerator, the rotation direction of blower fan is contrary。
6. control device according to claim 5, it is characterised in that after controlling described refrigerator and entering low temp compensating pattern, described first acquiring unit is additionally operable to obtain the temperature of described cold room；
If described first control unit is additionally operable to the temperature of described cold room more than or equal to four temperature thresholds, controlling described refrigerator and exit described low temp compensating pattern, wherein, described 4th temperature threshold is more than described second temperature threshold。
7. control device according to claim 5, it is characterised in that after the described refrigerator of described control enters low temp compensating pattern, described second acquisition unit is additionally operable to obtain the temperature in described main air duct；
If described second control unit is additionally operable to the temperature in described main air duct more than or equal to five temperature thresholds, controlling described refrigerator and exit described low temp compensating pattern, wherein, described 5th temperature threshold is more than described 3rd temperature threshold。
8. control device according to claim 5, it is characterised in that described refrigerator includes weatherseal, described weatherseal is arranged on the return air inlet place of described refrigerating chamber；The return air inlet of described refrigerating chamber can be closed by described weatherseal。
9. control device according to claim 8, it is characterised in that described weatherseal is air curtain。
10. control device according to claim 5, it is characterised in that heater strip on an evaporator is set when described heating member is described defroster。
11. a single system wind cooling refrigerator, it is characterised in that include the control device described in any one in claim 5 to 10。
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| CN111493593A (en) * | 2020-04-27 | 2020-08-07 | 海信容声(广东)冷柜有限公司 | Refrigerated display cabinet and control method thereof |
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Address after: 266736, No. 8, Hisense Avenue, South Village, Pingdu City, Shandong, Qingdao Applicant after: Hisense (Shandong) refrigerator Co., Ltd. Address before: 266100 Zhuzhou Road, Laoshan District, Shandong, No. 151, No. Applicant before: Hisense (Shandong) refrigerator Co., Ltd. |
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