CN115164477A - Refrigerator and control method thereof - Google Patents
Refrigerator and control method thereof Download PDFInfo
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- CN115164477A CN115164477A CN202210784356.3A CN202210784356A CN115164477A CN 115164477 A CN115164477 A CN 115164477A CN 202210784356 A CN202210784356 A CN 202210784356A CN 115164477 A CN115164477 A CN 115164477A
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- temperature
- air
- air door
- refrigerating
- refrigerator
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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
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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
- F25D23/00—General constructional features
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D29/00—Arrangement or mounting of control or safety devices
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D2700/00—Means for sensing or measuring; Sensors therefor
- F25D2700/12—Sensors measuring the inside temperature
Abstract
The invention discloses a refrigerator and a control method thereof.A refrigerating air duct structure of the refrigerator is internally provided with two independent air supply cavities, an air inlet of an air duct of a refrigerating chamber is designed by adopting double air doors, the opening of the refrigerating air door is controlled by two sensors at the positions of two side walls of the refrigerator, the opening and the closing of the two refrigerating air doors are respectively controlled by integrating the temperature conditions of the two refrigerating sensors in the refrigerating air supply control, the air supply and refrigeration control of the refrigerating chamber according to needs are realized, the problem of temperature supercooling caused by local passive refrigeration of the traditional refrigerator is fundamentally solved, and the high-quality storage function of foods in the refrigerating chamber is ensured while the energy conservation of the whole refrigerator is realized.
Description
Technical Field
The invention relates to the technical field of refrigerators, in particular to a refrigerator and a control method thereof.
Background
The refrigerating chamber of the traditional single-system air-cooled refrigerator mostly adopts a single air door to supply air from a freezing chamber to cool and refrigerate the refrigerating chamber, the opening of the air door is usually controlled by a single refrigerating temperature control sensor, when the temperature of the position of the sensor is higher than the refrigerating starting temperature, the refrigerating air door is opened to supply air for refrigeration, and when the temperature of the position of the sensor is lower than the refrigerating stopping temperature, the refrigerating air door is closed to stop refrigeration.
Disclosure of Invention
The embodiment of the invention aims to provide a refrigerator and a control method thereof, which can realize refrigeration control of air supply of a refrigerating chamber according to needs, ensure the temperature balance of the refrigerating chamber and realize energy saving of the whole refrigerator.
To achieve the above object, an embodiment of the present invention provides a refrigerator, including:
the refrigerator comprises a box body, a refrigerating chamber, a first refrigerating temperature control sensor and a second refrigerating temperature control sensor, wherein the refrigerating chamber is arranged in the box body, and the first refrigerating temperature control sensor and the second refrigerating temperature control sensor are respectively arranged on two sides of the refrigerating chamber and used for detecting the temperature of the refrigerating chamber;
the refrigerating air supply duct comprises a first air supply path and a second air supply path which are independent, wherein a first air door is arranged on the first air supply path, and a second air door is arranged on the second air supply path;
the controller is used for opening the first air door and the second air door when the refrigerator is powered on and the first temperature collected by the first refrigeration temperature control sensor is detected to be higher than the refrigeration starting temperature; when the first temperature is lower than the refrigeration shutdown temperature, closing the first air door and the second air door; acquire the cold-stored accuse temperature sensor of second detects the second temperature, and calculates the first temperature with the cold-stored temperature difference of second temperature works as when cold-stored temperature difference is greater than or equal to the difference in temperature threshold, gets into air door intelligent control mode.
As an improvement of the above scheme, the intelligent control mode of the damper comprises:
when the first temperature is higher than the refrigerating starting temperature, controlling the first air door to be opened;
when the first temperature is lower than the refrigeration shutdown temperature, controlling the first air door to be closed;
when the second temperature is higher than the refrigerating starting temperature, controlling the second air door to be opened;
and when the second temperature is lower than the refrigeration stop temperature, controlling the second air door to be closed.
As an improvement of the scheme, a first group of air outlets and a second group of air outlets are arranged on two sides of the refrigerating chamber, the first group of air outlets are communicated with the first air supply path, and the second group of air outlets are communicated with the second air supply path; the first group of air outlets and the second group of air outlets respectively comprise a plurality of air outlets.
As an improvement of the above scheme, the refrigerated air supply duct further comprises:
the first driving motor is used for driving the opening angle of the first air door;
then, said controlling said first damper to open comprises:
calculating a first temperature difference between the first temperature and the refrigerating starting temperature, and acquiring a first air door adjusting value corresponding to the first temperature difference in a preset air door adjusting table according to the first temperature difference; the air door adjusting table is provided with a plurality of air door adjusting values corresponding to temperature difference levels, and the temperature difference levels and the air door adjusting values are in a direct proportion relation;
and controlling the first driving motor according to the first air door adjusting value so as to adjust the opening angle of the first air door.
As an improvement of the above scheme, the refrigerated air supply duct further comprises:
the second driving motor is used for driving the opening angle of the second air door;
then, said controlling said second damper to open comprises:
calculating a second temperature difference between the second temperature and the refrigerating starting temperature, and acquiring a second air door adjusting value corresponding to the second temperature difference in a preset air door adjusting table according to the second temperature difference;
and controlling the second driving motor according to the second air door adjusting value so as to adjust the opening angle of the second air door.
In order to achieve the above object, an embodiment of the present invention further provides a refrigerator control method, where two sides of a refrigerating chamber of the refrigerator are respectively provided with a first refrigerating temperature control sensor and a second refrigerating temperature control sensor for detecting a temperature of the refrigerating chamber, a refrigerating air supply duct of the refrigerator includes two independent first air supply paths and two independent second air supply paths, a first air door is disposed on the first air supply path, and a second air door is disposed on the second air supply path; then, the refrigerator control method includes:
when the refrigerator is powered on, when the first temperature collected by the first refrigeration temperature control sensor is detected to be higher than the refrigeration starting temperature, the first air door and the second air door are opened;
when the first temperature is lower than the refrigeration shutdown temperature, closing the first air door and the second air door;
acquiring a second temperature detected by the second refrigeration temperature control sensor, and calculating a refrigeration temperature difference between the first temperature and the second temperature;
and when the refrigerating temperature difference is greater than or equal to the temperature difference threshold value, entering an intelligent air door control mode.
As an improvement of the above scheme, the intelligent damper control mode includes:
when the first temperature is higher than the refrigerating starting temperature, controlling the first air door to open;
when the first temperature is lower than the refrigeration shutdown temperature, controlling the first air door to be closed;
when the second temperature is higher than the refrigerating starting temperature, the second air door is controlled to be opened;
and when the second temperature is lower than the refrigeration stop temperature, controlling the second air door to be closed.
As an improvement of the scheme, a first group of air outlets and a second group of air outlets are arranged on two sides of the refrigerating chamber, the first group of air outlets are communicated with the first air supply path, and the second group of air outlets are communicated with the second air supply path; the first group of air outlets and the second group of air outlets respectively comprise a plurality of air outlets.
As an improvement of the above scheme, the controlling the first damper to open includes:
calculating a first temperature difference between the first temperature and the refrigerating starting temperature, and acquiring a first air door adjusting value corresponding to the first temperature difference in a preset air door adjusting table according to the first temperature difference; the air door adjusting table is provided with a plurality of air door adjusting values corresponding to temperature difference levels, and the temperature difference levels and the air door adjusting values are in a direct proportion relation;
and controlling the opening angle of the first air door according to the first air door adjusting value.
As an improvement of the above scheme, the controlling of the opening of the second damper includes:
calculating a second temperature difference between the second temperature and the refrigerating starting temperature, and acquiring a second air door adjusting value corresponding to the second temperature difference in a preset air door adjusting table according to the second temperature difference;
and controlling the opening angle of the second air door according to the second air door adjusting value.
Compared with the prior art, the refrigerator and the control method thereof disclosed by the embodiment of the invention have the advantages that the two independent air supply cavities are arranged in the refrigerating air duct structure of the refrigerator, the air inlet of the refrigerating air duct of the refrigerating chamber is designed by adopting double air doors, the opening of the refrigerating air door is controlled by the two sensors on the two side walls of the refrigerator, the opening and the closing of the two refrigerating air doors are respectively controlled by integrating the temperature conditions of the two refrigerating sensors in the refrigerating air supply control, the air supply and refrigeration control of the refrigerating chamber according to needs are realized, the problem of temperature supercooling caused by local passive refrigeration of the traditional refrigerator is fundamentally solved, and the high-quality storage function of foods in the refrigerating chamber is ensured and the energy conservation of the whole refrigerator is realized.
Drawings
Fig. 1 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;
FIG. 2 is a schematic view of the installation position of a first refrigerated temperature controlled sensor provided by an embodiment of the present invention;
FIG. 3 is a schematic diagram of the installation position of a second refrigerated temperature control sensor provided by the embodiment of the invention;
FIG. 4 is a schematic front view of an air duct provided in an embodiment of the present invention;
FIG. 5 is a schematic diagram of the rear side of the air duct according to the embodiment of the present invention;
fig. 6 is a first flowchart of a controller in a refrigerator according to an embodiment of the present invention;
fig. 7 is a second flowchart of the controller of the refrigerator according to the embodiment of the present invention;
fig. 8 is a third flowchart of a controller in a refrigerator according to an embodiment of the present invention;
fig. 9 is a fourth operation flowchart of the controller in the refrigerator according to the embodiment of the present invention;
fig. 10 is a flowchart of a refrigerator control method according to an embodiment of the present invention.
100, a refrigerator; 10. a refrigerating chamber; 11. a first refrigerated temperature control sensor; 12. a second refrigeration temperature control sensor; 20. a freezing fan; 21. a first damper; 22. a second damper; 23. a first set of air outlets; 24. a second group of air outlets; 201. a first air supply path; 202. a second air supply path.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be obtained by a person skilled in the art without inventive step based on the embodiments of the present invention, are within the scope of protection of the present invention.
In the description of the present application, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be construed as limiting the present application.
The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, the meaning of "a plurality" is two or more unless otherwise specified.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
Referring to fig. 1, fig. 1 is a schematic structural diagram of a refrigerator provided in an embodiment of the present invention, the refrigerator in this embodiment has an approximately rectangular parallelepiped shape, and the refrigerator includes a box body defining a storage space and a plurality of door bodies disposed at an opening of the box body, where each door body includes a door body shell located outside the box body, a door body liner located inside the box body, an upper end cover, a lower end cover, and a heat insulating layer located between the door body shell, the door body liner, the upper end cover, and the lower end cover; typically, the thermal insulation layer is filled with a foam material. The cabinet is provided with a chamber including a component storage chamber for storing components in the refrigerator, such as a compressor, etc., and a storage space for storing food, etc. The storage space may be partitioned into a plurality of storage compartments, and the storage compartments may be configured as a refrigerating compartment 10, a freezing compartment, a temperature-variable compartment, and the like, depending on the purpose. One or more door bodies are associated with each storage compartment, for example, in fig. 1, the storage compartment in the upper portion is provided with a double door body. The door body can be pivotally arranged at the opening of the box body and can be opened in a drawer mode so as to achieve drawer type storage.
The refrigerator 100 is a single system refrigerator, and a refrigeration system of the refrigerator 100 includes a compressor, a condenser, a condensation preventing pipe, a dry filter, a capillary tube, an evaporator, and a gas-liquid separator. The working process of the refrigeration system comprises a compression process, a condensation process, a throttling process and an evaporation process. Wherein, the compression process is as follows: the power cord of the refrigerator is plugged, and under the condition that the contact of the temperature controller is connected, the compressor starts to work, the low-temperature and low-pressure refrigerant is sucked by the compressor, and is compressed into high-temperature and high-pressure superheated gas in the cylinder of the compressor and then is discharged into the condenser; the condensation process is as follows: the high-temperature and high-pressure refrigerant gas is radiated by the condenser, the temperature is continuously reduced, the refrigerant gas is gradually cooled to be saturated vapor with normal temperature and high pressure, the refrigerant gas is further cooled to be saturated liquid, the temperature is not reduced any more, the temperature at the moment is called as the condensation temperature, and the pressure of the refrigerant in the whole condensation process is almost unchanged; the throttling process is as follows: the condensed refrigerant saturated liquid flows into a capillary tube after being filtered by a drying filter to remove moisture and impurities, throttling and pressure reduction are carried out through the capillary tube, and the refrigerant is changed into normal-temperature low-pressure wet vapor; the evaporation process is as follows: the normal temperature and low pressure wet steam starts to absorb heat to vaporize in the evaporator, so that the temperature of the evaporator and the surrounding temperature of the evaporator are reduced, the refrigerant is changed into low temperature and low pressure gas, the refrigerant from the evaporator returns to the compressor after passing through the gas-liquid separator, the processes are repeated, the heat in the refrigerator is transferred to the air outside the refrigerator, and the aim of refrigeration is fulfilled.
Referring to fig. 2, fig. 2 is a schematic diagram illustrating an installation position of the first refrigerated temperature control sensor 11 according to the embodiment of the present invention; the first refrigeration temperature control sensor 11 is disposed on one side of the refrigeration compartment 10, for example, on a sidewall of the left side of the refrigeration compartment 10. The first refrigeration temperature control sensor 11 is used for detecting the temperature of the refrigerating chamber, and it is worth explaining that the first refrigeration temperature control sensor 11 is arranged in the middle of the side wall of the refrigerating chamber 10.
Referring to fig. 3, fig. 3 is a schematic view of the installation position of a second refrigerated temperature control sensor provided by the embodiment of the present invention; the second refrigeration temperature control sensor 12 is disposed at the other side of the refrigeration compartment 10, for example, on the sidewall of the right side of the refrigeration compartment 10. The second refrigeration temperature control sensor 12 is used for detecting the temperature of the refrigerating chamber, and it should be noted that the second refrigeration temperature control sensor 12 is arranged in the middle of the side wall of the refrigerating chamber 10.
Referring to fig. 4 to 5, fig. 4 is a schematic front view of an air duct provided in an embodiment of the present invention, and fig. 5 is a schematic back view of the air duct provided in the embodiment of the present invention. The refrigerating air supply duct in the refrigerator provided by the embodiment of the invention comprises a first air supply path 201 and a second air supply path 202 which are independent, wherein a first air door 21 is arranged on the first air supply path 201, and a second air door 22 is arranged on the second air supply path 202. A first group of air outlets 23 and a second group of air outlets 24 are arranged on two sides of the refrigerating chamber 10, the first group of air outlets 23 are communicated with the first air supply path 201, and the second group of air outlets 24 are communicated with the second air supply path 202; the first set of air outlets 23 and the second set of air outlets 24 respectively include a plurality of air outlets (for example, air outlets respectively located at upper, middle and lower positions of the refrigerating compartment). The freezing fan 20 makes the air continuously enter the fins of the evaporator for heat exchange, and simultaneously the air which is cooled after the heat of the evaporator is released is sent to the refrigerating chamber 10 and the freezing chamber through a refrigerating air supply duct (passing through a first air door 21 and a second air door 22), so that the air in the refrigerating chamber continuously circularly flows to achieve the purpose of reducing the temperature.
It is worth to be noted that, the existing single-system air-cooled refrigerator adopts a single air door arrangement mode, the freezing fan sends cold air into the refrigerating air duct through the single air door, the cold air in the refrigerating air duct is divided into two parts through the baffle after being mixed, two paths are formed and respectively flow to the refrigerating chamber, but the two paths do not exist independently due to the existence of the cold air mixing part, and the cold air can flow into the two paths simultaneously. In the embodiment of the present invention, the cold storage air supply duct is directly divided into two ducts by a baffle, there is no cold air mixing part, and the cold air flowing into the first air supply path 201 and the second air supply path 202 is independent and does not affect each other, for example, when the first damper 21 is closed and the second damper 22 is opened, the cold air only flows into the cold storage compartment through the second air supply path 202, whereas when the second damper 22 is closed and the first damper 21 is opened, the cold air only flows into the cold storage compartment through the first air supply path 201, and when the first damper 21 and the second damper 22 are both opened, the cold air simultaneously flows into the first air supply path 201 and the second air supply path 202.
For example, when a large amount of food materials are suddenly placed on the left side of the refrigerating chamber of the refrigerator, the temperature of the left side (corresponding to the first air door) of the refrigerating chamber is higher than the refrigerating starting-up temperature, and the temperature of the right side (corresponding to the second air door) of the refrigerating chamber is lower than the refrigerating starting-up temperature, the first air door can be opened to realize air supply, and the second air door is kept closed.
The controller of the refrigerator 100 is configured to: when the refrigerator is powered on, when the first temperature collected by the first refrigeration temperature control sensor is detected to be higher than the refrigeration starting temperature, the first air door and the second air door are opened; when the first temperature is lower than the refrigeration shutdown temperature, closing the first air door and the second air door; acquire the cold-stored accuse temperature sensor of second detects the second temperature, and calculates the first temperature with the cold-stored temperature difference of second temperature works as when cold-stored temperature difference is greater than or equal to the difference in temperature threshold, gets into air door intelligent control mode.
For example, referring to fig. 6, fig. 6 is a first flowchart of the operation of the controller in the refrigerator according to the embodiment of the present invention, in which the refrigeration temperature-control sensor a is the first refrigeration temperature-control sensor 11, and the refrigeration temperature-control sensor B is the first refrigeration temperature-control sensorThe second refrigeration temperature control sensor 12 and the air door A are the first air door 21 and the air door B are the second air door 22 and T A Is the first temperature, T B Is a second temperature, T ON Starting temperature, T, for refrigeration OFF The refrigeration shutdown temperature. The controller is configured to perform steps S11 to S16:
s11, controlling the refrigerator primary power-on system according to a common air door control mode, controlling the opening and closing actions of two refrigerating air doors by a refrigerating temperature control sensor A, and then entering the step S12;
s12, temperature T of refrigeration sensor A A Higher than the refrigerating starting point T ON The refrigeration starts, the refrigeration air doors A and B are opened until the temperature T of the refrigeration sensor A A Less than refrigeration shutdown temperature T OFF Stopping refrigerating, closing both air doors, and then entering step S13;
s13, judging that the refrigerator enters a stable running state, and acquiring and monitoring the temperature T of two refrigeration temperature control A and B sensors in real time by the system at the moment A 、T B Then, the process proceeds to step S14;
s14, judging T at preset time intervals (such as 2 min) A And T B Is greater than or equal to a temperature difference threshold (e.g., 2 ℃), it is determined whether | T is satisfied A -T B If the temperature is not less than 2 ℃, the step S16 is executed, otherwise, the step S15 is executed;
s15, if the TA-TB is not satisfied, the temperature is more than or equal to 2 ℃, the air door common control mode is entered, and the double air doors still adopt the T A Controlling the temperature point and returning to the step S12;
and S16, if the requirement that the absolute TA-TB is more than or equal to 2 ℃, entering an intelligent air door control mode.
For example, after step S16 is executed, the "damper intelligent control mode" is entered, and the controller is further configured to execute steps S17 to S20:
s17, after the system judges that the air door intelligent control mode is entered, the temperature of the sensors A and B is continuously acquired, and then the step S18 is entered;
s18, continuously judging the temperature T of the refrigeration temperature control sensors A and B A 、T B Size of (2)Is to determine whether T is satisfied A ＞T B If yes, the process goes to step S20, and if not, the process goes to step S19;
s19, if T is not satisfied A ＜T B And the system judges to enter an air door intelligent control B mode.
S20, if T is satisfied A ＞T B And the system judges to enter an intelligent air door control mode A.
The 'air door intelligent control A mode' and the 'air door intelligent control B mode' meet the following requirements: when the first temperature is higher than the refrigerating starting temperature, controlling the first air door to be opened; when the first temperature is lower than the refrigeration shutdown temperature, controlling the first air door to be closed; when the second temperature is higher than the refrigerating starting temperature, controlling the second air door to be opened; and when the second temperature is lower than the refrigerating shutdown temperature, controlling the second air door to be closed.
For example, the operation flowchart of the "intelligent damper control mode a" may refer to fig. 8, where fig. 8 is a third operation flowchart of the controller in the refrigerator according to the embodiment of the present invention, and the controller is further configured to execute steps S201 to S207:
s201, under the 'air door intelligent control A mode' of the system, the system collects temperature data T fed back by the refrigeration sensor A in real time A Then, the process proceeds to step S202;
s202, when T A Higher than the starting temperature T of starting refrigeration ON (i.e. T) A ＞T ON ) When the air door A is opened, air outlets of the group A of the refrigeration air channels start to discharge air for refrigeration, and then the step S203 is executed;
s203, the system simultaneously collects and feeds back temperature data T fed back by the refrigeration sensor B in real time B Then, the flow proceeds to step S204;
s204, when T B Higher than the starting temperature T of starting refrigeration ON (i.e. T) B ＞T ON ) When the air door B is opened, the air outlets of the air supply ports B of the refrigerating air channels begin to discharge air for refrigeration, and then the step S205 is executed;
s205, the system judges the temperature data T fed back by the refrigeration sensors A and B in real time A And T ON Judging whether the temperatures detected by the sensors all reach the shutdown temperature, namely whether the temperatures respectively meet T A ＜T OFF 、T B ＜T OFF If yes, go to step S206, otherwise go to step S207;
s206, if T is satisfied A ＜T OFF And T B ＜T OFF The air doors A and B are respectively closed to stop refrigeration;
s207, if T is not satisfied A ＜T OFF And T B ＜T OFF Dampers a and B, respectively, continue to operate.
For example, the operation flowchart of the "B mode of intelligent damper control" may be referred to fig. 9, where fig. 9 is a fourth operation flowchart of the controller in the refrigerator according to the embodiment of the present invention, and the controller is further configured to execute steps S191 to S197:
s191, under the system 'air door intelligent control B mode', the system collects the temperature data T fed back by the refrigeration sensor B in real time B Then, the process proceeds to step S192;
s192, when T B Higher than the starting temperature T of starting refrigeration ON (i.e. T) B ＞T ON ) When the air door B is opened, the air outlets of the group B of the refrigeration air ducts start to discharge air for refrigeration, and then the step S193 is executed;
s193, simultaneously acquiring temperature data T fed back by the feedback refrigeration sensor A in real time by the system A Then, the process proceeds to step S194;
s194 when T A Higher than the starting temperature T of starting refrigeration ON (i.e. T) A ＞T ON ) When the air door A is opened, the air outlets of the group A of the refrigerating air channels start to discharge air for refrigeration, and then the step S195 is executed;
s195, the system judges the temperature data T fed back by the refrigeration sensors A and B in real time A And T ON Judging whether the temperatures detected by the sensors all reach the shutdown temperature, namely whether the temperatures respectively meet T A ＜T OFF 、T B ＜T OFF If yes, go to step S196, otherwise go to step S197;
s196, if T is satisfied A ＜T OFF And T B ＜T OFF The air doors A and B are respectively closed to stop refrigeration;
s197, if not T A ＜T OFF And T B ＜T OFF Dampers a and B, respectively, continue to operate.
Further, in the embodiment of the present invention, the refrigerated air supply duct further includes:
the first driving motor is used for driving the opening angle of the first air door;
then, said controlling said first damper to open comprises:
calculating a first temperature difference between the first temperature and the refrigerating starting temperature, and acquiring a first air door adjusting value corresponding to the first temperature difference in a preset air door adjusting table according to the first temperature difference; the air door adjusting table is provided with a plurality of air door adjusting values corresponding to temperature difference levels, and the temperature difference levels and the air door adjusting values are in a direct proportion relation; and controlling the first driving motor according to the first air door adjusting value so as to adjust the opening angle of the first air door.
For example, when the first damper is controlled to be opened (the opening angle of the first damper is adjusted), the first damper may be adjusted according to a first temperature difference between the first temperature and the refrigeration start-up temperature, and a larger difference between the first temperature difference and the refrigeration start-up temperature indicates that the temperature of the refrigeration compartment is higher, and at this time, the opening angle of the first damper is larger. The opening angle of the first air door comprises 0-90 degrees, when the first air door is in 0 degree, the first air door is in a closed state, and when the first air door is in 90 degrees, the first air door is in a fully-opened state. The first air door adjusting value is 0-90 degrees, and a plurality of temperature difference grades and corresponding first air door adjusting values are preset, wherein the temperature difference grades comprise 0 ℃, 0.1 ℃,0.3 ℃), 0.3 ℃, 0.6 ℃, 0.9 ℃, and the like.
Furthermore, in an embodiment of the present invention, the refrigerated air supply duct further includes:
the second driving motor is used for driving the opening angle of the second air door;
then, said controlling said second damper to open comprises:
calculating a second temperature difference between the second temperature and the refrigerating starting temperature, and acquiring a second air door adjusting value corresponding to the second temperature difference in a preset air door adjusting table according to the second temperature difference; and controlling the second driving motor according to the second air door adjusting value so as to adjust the opening angle of the second air door.
For example, when the second damper is controlled to be opened (the opening angle of the second damper is adjusted), the second damper may be adjusted according to a second temperature difference between the second temperature and the refrigeration starting temperature, and a larger difference between the second temperature difference indicates that the temperature of the refrigeration compartment is higher, and at this time, the opening angle of the second damper is larger. The opening angle of the second air door comprises 0-90 degrees, when the second air door is in 0 degree, the second air door is in a closed state, and when the second air door is in 90 degrees, the second air door is in a fully-opened state. The second air door adjusting value is 0-90 degrees.
Compared with the prior art, the single-system air-cooled refrigerator provided by the embodiment of the invention is different from the traditional refrigerator in the industry in that a single temperature sensor is adopted to control the opening and closing of the air supply air doors of the refrigerating air channel, two temperature sensors are arranged on the left side and the right side of the refrigerator body, two independent air supply cavities are arranged in the refrigerating air channel structure of the refrigerator, the air inlet of the air channel of the refrigerating air channel adopts a double-air-door design, the opening of the refrigerating air door is controlled by the two sensors on the two side walls of the refrigerator, the opening and closing of the two refrigerating air doors are respectively controlled by integrating the temperature conditions of the two refrigerating sensors in the refrigerating air supply control, the air supply and refrigeration control of the refrigerating air channel according to needs are realized, the problem of temperature supercooling caused by local passive refrigeration of the traditional refrigerator is fundamentally solved, the high-quality storage function of foods in the refrigerating air supply is ensured, and the energy conservation of the whole refrigerator is realized at the same time.
Referring to fig. 10, fig. 10 is a flowchart of a refrigerator control method according to an embodiment of the present invention, where the refrigerator controller method according to the embodiment of the present invention is implemented by a controller in a refrigerator, a first refrigeration temperature control sensor and a second refrigeration temperature control sensor for detecting a temperature of a refrigeration chamber are respectively disposed at two sides of a refrigeration chamber of the refrigerator, a refrigeration air supply duct of the refrigerator includes two independent first air supply paths and two independent second air supply paths, a first air door is disposed on the first air supply path, and a second air door is disposed on the second air supply path; then, the refrigerator control method includes:
s1, when a refrigerator is powered on, and when a first temperature acquired by a first refrigeration temperature control sensor is detected to be higher than a refrigeration starting temperature, a first air door and a second air door are opened;
s2, when the first temperature is lower than the refrigeration shutdown temperature, closing the first air door and the second air door;
s3, acquiring a second temperature detected by the second refrigeration temperature control sensor, and calculating a refrigeration temperature difference between the first temperature and the second temperature;
and S4, when the refrigerating temperature difference is larger than or equal to the temperature difference threshold value, entering an intelligent air door control mode.
The refrigerating air supply duct in the refrigerator provided by the embodiment of the invention comprises a first air supply path and a second air supply path which are independent, wherein a first air door is arranged on the first air supply path, and a second air door is arranged on the second air supply path. A first group of air outlets and a second group of air outlets are arranged on two sides of the refrigerating chamber, the first group of air outlets are communicated with the first air supply path, and the second group of air outlets are communicated with the second air supply path; the first group of air outlets and the second group of air outlets respectively comprise a plurality of air outlets.
It is worth to be noted that, the existing single-system air-cooled refrigerator adopts a single air door arrangement mode, the freezing fan sends cold air into the refrigerating air duct through the single air door, the cold air in the refrigerating air duct is divided into two parts through the baffle after being mixed, two paths are formed and respectively flow to the refrigerating chamber, but the two paths do not exist independently due to the existence of the cold air mixing part, and the cold air can flow into the two paths simultaneously. In the embodiment of the invention, the cold storage air supply duct is directly divided into two parts by the baffle plate, a cold air mixing part does not exist, and cold air flowing into the first air supply path and the second air supply path is independent and does not influence each other, for example, when the first air door is closed and the second air door is opened, the cold air only flows into the cold storage chamber through the second air supply path, otherwise, when the second air door is closed and the first air door is opened, the cold air only flows into the cold storage chamber through the first air supply path, and when the first air door and the second air door are both opened, the cold air simultaneously flows into the first air supply path and the second air supply path.
For example, when a large amount of food materials are suddenly placed on the left side of the refrigerating chamber of the refrigerator, the temperature of the left side (corresponding to the first air door) of the refrigerating chamber is higher than the refrigerating starting-up temperature, and the temperature of the right side (corresponding to the second air door) of the refrigerating chamber is lower than the refrigerating starting-up temperature, the first air door can be opened to realize air supply, and the second air door is kept closed.
Specifically, the intelligent control mode of the damper comprises the following steps: when the first temperature is higher than the refrigerating starting temperature, controlling the first air door to be opened; when the first temperature is lower than the refrigeration shutdown temperature, controlling the first air door to be closed; when the second temperature is higher than the refrigerating starting temperature, controlling the second air door to be opened; and when the second temperature is lower than the refrigerating shutdown temperature, controlling the second air door to be closed.
Specifically, the working logic of the damper control can refer to the control process in the above embodiment of the refrigerator, and is not described herein again.
Specifically, the controlling the first damper to open includes:
calculating a first temperature difference between the first temperature and the refrigerating starting temperature, and acquiring a first air door adjusting value corresponding to the first temperature difference in a preset air door adjusting table according to the first temperature difference; the air door adjusting table is provided with a plurality of air door adjusting values corresponding to temperature difference levels, and the temperature difference levels and the air door adjusting values are in a direct proportion relation; and controlling the opening angle of the first air door according to the first air door adjusting value.
For example, when the first damper is controlled to be started (the opening angle of the first damper is adjusted), the first damper may be adjusted according to a first temperature difference between the first temperature and the refrigeration starting temperature, and the larger the difference of the first temperature difference is, the higher the temperature of the refrigeration compartment is, the larger the angle at which the first damper needs to be opened is. The opening angle of the first air door comprises 0-90 degrees, when the first air door is at 0 degree, the first air door is in a closed state, and when the first air door is at 90 degrees, the first air door is in a fully-opened state. The first air door adjusting value is 0-90 degrees, and a plurality of temperature difference grades and corresponding first air door adjusting values are preset, wherein the temperature difference grades comprise 0 ℃, 0.1 ℃,0.3 ℃), 0.3 ℃, 0.6 ℃, 0.9 ℃ and the like.
Specifically, the controlling the second damper to open includes:
calculating a second temperature difference between the second temperature and the refrigerating starting temperature, and acquiring a second air door adjusting value corresponding to the second temperature difference in a preset air door adjusting table according to the second temperature difference; and controlling the opening angle of the second air door according to the second air door adjusting value.
For example, when the second damper is controlled to be started (the opening angle of the second damper is adjusted), the second damper may be adjusted according to a second temperature difference between the second temperature and the refrigeration starting temperature, and the larger the difference of the second temperature difference is, the higher the temperature of the refrigeration compartment is, the larger the angle at which the second damper needs to be opened is. The opening angle of the second air door comprises 0-90 degrees, when the second air door is in 0 degree, the second air door is in a closed state, and when the second air door is in 90 degrees, the second air door is in a fully-opened state. The second air door adjusting value is 0-90 degrees.
Compared with the prior art, the single-system air-cooled refrigerator provided by the embodiment of the invention is different from the traditional refrigerator in the industry in that a single temperature sensor is adopted to control the opening and closing of the air supply air doors of the refrigerating air channel, two temperature sensors are arranged on the left side and the right side of the refrigerator body, two independent air supply cavities are arranged in the refrigerating air channel structure of the refrigerator, the air inlet of the air channel of the refrigerating air channel adopts a double-air-door design, the opening of the refrigerating air door is controlled by the two sensors on the two side walls of the refrigerator, the opening and closing of the two refrigerating air doors are respectively controlled by integrating the temperature conditions of the two refrigerating sensors in the refrigerating air supply control, the air supply and refrigeration control of the refrigerating air channel according to needs are realized, the problem of temperature supercooling caused by local passive refrigeration of the traditional refrigerator is fundamentally solved, the high-quality storage function of foods in the refrigerating air supply is ensured, and the energy conservation of the whole refrigerator is realized at the same time.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes and modifications may be made without departing from the spirit and scope of the invention.
Claims (10)
1. A refrigerator, characterized by comprising:
the refrigerator comprises a box body, a refrigerating chamber, a first refrigerating temperature control sensor and a second refrigerating temperature control sensor, wherein the refrigerating chamber is arranged in the box body, and the first refrigerating temperature control sensor and the second refrigerating temperature control sensor are respectively arranged on two sides of the refrigerating chamber and used for detecting the temperature of the refrigerating chamber;
the refrigeration air supply duct comprises a first air supply path and a second air supply path which are independent, wherein a first air door is arranged on the first air supply path, and a second air door is arranged on the second air supply path;
the controller is used for opening the first air door and the second air door when the refrigerator is powered on and the first temperature collected by the first refrigeration temperature control sensor is detected to be higher than the refrigeration starting temperature; when the first temperature is lower than the refrigeration shutdown temperature, closing the first air door and the second air door; acquire the cold-stored accuse temperature sensor of second detects the second temperature, and calculates the first temperature with the cold-stored temperature difference of second temperature, works as when cold-stored temperature difference is greater than or equal to the difference in temperature threshold, gets into air door intelligent control mode.
2. The refrigerator of claim 1 wherein said damper intelligent control mode comprises:
when the first temperature is higher than the refrigerating starting temperature, controlling the first air door to be opened;
when the first temperature is lower than the refrigeration shutdown temperature, controlling the first air door to be closed;
when the second temperature is higher than the refrigerating starting temperature, the second air door is controlled to be opened;
and when the second temperature is lower than the refrigerating shutdown temperature, controlling the second air door to be closed.
3. The refrigerator of claim 1, wherein a first set of air outlets and a second set of air outlets are formed at both sides of the refrigerating compartment, the first set of air outlets being communicated with the first air supply path, the second set of air outlets being communicated with the second air supply path; the first group of air outlets and the second group of air outlets respectively comprise a plurality of air outlets.
4. The refrigerator of claim 2, wherein said refrigerated supply air duct further comprises:
the first driving motor is used for driving the opening angle of the first air door;
then, said controlling said first damper to open comprises:
calculating a first temperature difference between the first temperature and the refrigerating starting temperature, and acquiring a first air door adjusting value corresponding to the first temperature difference in a preset air door adjusting table according to the first temperature difference; the air door adjusting table is provided with a plurality of air door adjusting values corresponding to temperature difference levels, and the temperature difference levels and the air door adjusting values are in a direct proportion relation;
and controlling the first driving motor according to the first air door adjusting value so as to adjust the opening angle of the first air door.
5. The refrigerator of claim 2 wherein said refrigerated supply air duct further comprises:
the second driving motor is used for driving the opening angle of the second air door;
then, said controlling said second damper to open comprises:
calculating a second temperature difference between the second temperature and the refrigerating starting temperature, and acquiring a second air door adjusting value corresponding to the second temperature difference in a preset air door adjusting table according to the second temperature difference;
and controlling the second driving motor according to the second air door adjusting value so as to adjust the opening angle of the second air door.
6. A refrigerator control method is characterized in that a first refrigeration temperature control sensor and a second refrigeration temperature control sensor for detecting the temperature of a refrigerating chamber are respectively arranged on two sides of the refrigerating chamber of a refrigerator, a refrigeration air supply duct of the refrigerator comprises a first air supply path and a second air supply path which are independent, a first air door is arranged on the first air supply path, and a second air door is arranged on the second air supply path; then, the refrigerator control method includes:
when the refrigerator is powered on, when the first temperature collected by the first refrigeration temperature control sensor is detected to be higher than the refrigeration starting temperature, the first air door and the second air door are opened;
when the first temperature is lower than the refrigeration shutdown temperature, closing the first air door and the second air door;
acquiring a second temperature detected by the second refrigeration temperature control sensor, and calculating a refrigeration temperature difference between the first temperature and the second temperature;
and when the refrigerating temperature difference is greater than or equal to the temperature difference threshold value, entering an intelligent air door control mode.
7. The refrigerator control method of claim 6, wherein the damper smart control mode comprises:
when the first temperature is higher than the refrigerating starting temperature, controlling the first air door to be opened;
when the first temperature is lower than the refrigeration shutdown temperature, controlling the first air door to be closed;
when the second temperature is higher than the refrigerating starting temperature, controlling the second air door to be opened;
and when the second temperature is lower than the refrigerating shutdown temperature, controlling the second air door to be closed.
8. The method as claimed in claim 6, wherein a first set of air outlets and a second set of air outlets are provided at both sides of the refrigerating compartment, the first set of air outlets are communicated with the first air supply path, and the second set of air outlets are communicated with the second air supply path; the first group of air outlets and the second group of air outlets respectively comprise a plurality of air outlets.
9. The method as claimed in claim 7, wherein said controlling said first damper to open comprises:
calculating a first temperature difference between the first temperature and the refrigerating starting temperature, and acquiring a first air door adjusting value corresponding to the first temperature difference in a preset air door adjusting table according to the first temperature difference; the air door adjusting table is provided with a plurality of air door adjusting values corresponding to temperature difference levels, and the temperature difference levels and the air door adjusting values are in a direct proportion relation;
and controlling the opening angle of the first air door according to the first air door adjusting value.
10. The refrigerator of claim 7 wherein said controlling said second damper to open comprises:
calculating a second temperature difference between the second temperature and the refrigerating starting temperature, and acquiring a second air door adjusting value corresponding to the second temperature difference in a preset air door adjusting table according to the second temperature difference;
and controlling the opening angle of the second air door according to the second air door adjusting value.
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| CN202210784356.3A CN115164477A (en) | 2022-07-05 | 2022-07-05 | Refrigerator and control method thereof |
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| CN202210784356.3A CN115164477A (en) | 2022-07-05 | 2022-07-05 | Refrigerator and control method thereof |
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