CN109163490B - Refrigerator and control method and control device thereof - Google Patents

Refrigerator and control method and control device thereof Download PDF

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Publication number
CN109163490B
CN109163490B CN201810864855.7A CN201810864855A CN109163490B CN 109163490 B CN109163490 B CN 109163490B CN 201810864855 A CN201810864855 A CN 201810864855A CN 109163490 B CN109163490 B CN 109163490B
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China
Prior art keywords
temperature
refrigerating
freezing
equal
chamber
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CN201810864855.7A
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CN109163490A (en
Inventor
孙伟
邓冰
李腾昌
符栋华
程德彬
朱嘉伟
陈韬
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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Hisense Ronshen Guangdong Refrigerator Co Ltd
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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D11/00—Self-contained movable devices, e.g. domestic refrigerators
    • F25D11/02—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures
    • F25D11/022—Self-contained movable devices, e.g. domestic refrigerators with cooling compartments at different temperatures with two or more evaporators
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
    • F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
    • F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
    • F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
    • F25D17/06—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection by forced circulation
    • F25D17/067—Evaporator fan units
    • 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
    • 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
    • F25D2317/00—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass
    • F25D2317/06—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation
    • F25D2317/068—Details or arrangements for circulating cooling fluids; Details or arrangements for circulating gas, e.g. air, within refrigerated spaces, not provided for in other groups of this subclass with forced air circulation characterised by the fans
    • F25D2317/0682—Two or more fans

Abstract

The embodiment of the invention discloses a refrigerator and a control method and a control device thereof, relates to the field of household appliances, and can realize independent refrigeration of compartments and guarantee the reliability of refrigerator operation. The refrigerator comprises a refrigeration system, wherein the refrigeration system comprises a compressor, a condenser, a throttle pipe, a refrigeration evaporator and a freezing evaporator which are sequentially communicated according to the flow direction of a refrigerant; the refrigerating system also comprises a refrigerating fan used for sending the cold energy of the refrigerating evaporator into the refrigerating chamber and a freezing fan used for sending the cold energy of the freezing evaporator into the freezing chamber.

Description

Refrigerator and control method and control device thereof
Technical Field
The embodiment of the invention relates to the field of household appliances, in particular to a refrigerator and a control method and a control device thereof.
Background
At present, the air-cooled refrigerator comprises a freezing chamber and a refrigerating chamber, and a refrigerating system of the air-cooled refrigerator mainly comprises the following types: firstly, a single-system refrigerator comprises an evaporator and a fan which are used as cold energy sources, and cold energy is conveyed to each compartment through an air duct system; the double-system refrigerator is provided with independent evaporators and fans in each chamber, and the flow direction of a refrigerant is controlled through an electromagnetic valve to realize independent refrigeration; and thirdly, a multi-system refrigerator and an independent refrigeration principle are the same as those of the dual-system refrigerator.
The single system refrigerator, evaporimeter and fan generally are located freezing indoor, and the walk-in realizes the wind circulation by blast pipe and return air duct, need to explain, the tuber pipe is sealed especially important on this kind of single system refrigerator, in case tuber pipe and the sealed poor of case courage lead to the contact position very easily to leak out, lead to the refrigeration badly, what is more, when the incasement humidity is great, wet steam receives cold wind influence to condense into ice, send back the inside stifled that freezes of tuber pipe can appear, lead to refrigerator refrigerating system paralysis. In addition, after the refrigerator refrigerates for a long time, because each user's service condition is different, the sponge sealing reliability of wind channel also can descend, has relatively great risk when in actual use. Meanwhile, the air returning from the refrigerating chamber needs to the freezing evaporator, so that the odor of the refrigerating chamber is brought to the freezing chamber, and the odor tainting of foods and the like are caused. Therefore, dual systems and multi systems are the options for many high-end refrigerators.
In a dual-system or multi-system refrigerator, a solenoid valve (one inlet and two outlets or one inlet and three outlets) is generally used for controlling a refrigerant to flow to an evaporator of each compartment, and according to refrigeration requirements of each compartment (for example, compartment doors can be opened and closed to different degrees when a user uses the refrigerator, and the compartment refrigeration requirements of the compartment doors which are frequently opened are high), the solenoid valve is frequently switched, the requirement on the reliability of the solenoid valve is high, and the solenoid valve is prone to failure after long-time use.
In short, how to realize independent cooling of the compartments and ensure the reliability of the refrigerator operation becomes a problem to be solved.
Disclosure of Invention
The embodiment of the invention provides a refrigerator, a control method and a control device thereof, which can realize independent refrigeration of compartments and ensure the reliability of refrigerator operation.
In a first aspect, a refrigerator is provided, which comprises a refrigeration system, wherein the refrigeration system comprises a compressor, a condenser, a throttle pipe, a refrigeration evaporator and a freezing evaporator which are sequentially communicated according to the flow direction of a refrigerant; the refrigerating system also comprises a refrigerating fan used for sending the cold energy of the refrigerating evaporator into the refrigerating chamber and a freezing fan used for sending the cold energy of the freezing evaporator into the freezing chamber.
In the scheme, the refrigerating system of the refrigerator comprises a compressor, a condenser, a throttle pipe, a refrigerating evaporator and a freezing evaporator which are sequentially communicated according to the flow direction of a refrigerant; the refrigeration chamber and the freezing chamber are respectively provided with an evaporator and a fan, and the two evaporators are connected in series according to the flow of the refrigerant, so that when the compressor runs, the refrigerant output by the compressor from the outlet end sequentially flows back to the compressor through the refrigeration evaporator and the freezing evaporator, when the two fans are started, the cold energy of the refrigeration evaporator is sent into the refrigeration chamber, the cold energy of the freezing evaporator is sent into the freezing chamber, the two chambers are respectively refrigerated, the independent refrigeration of the chambers is realized, and the structure that the two evaporators are connected in series is directly realized, the flow direction of the refrigerant is not required to be controlled by an electromagnetic valve, and the running reliability of the refrigerator is improved.
In a second aspect, a control method for a refrigerator is provided, which is applied to the refrigerator; the method comprises the following steps:
when the temperature Tr of the refrigerating chamber is detected to be greater than or equal to the refrigerating starting temperature Trk or the temperature Tf of the freezing chamber is detected to be greater than or equal to the freezing starting temperature Tfk, controlling the compressor to start;
when detecting that the temperature Tr of the refrigerating chamber is less than or equal to the refrigerating stop temperature Trt and detecting that the temperature Tf of the freezing chamber is less than or equal to the freezing stop temperature Tft, controlling the compressor to stop;
after the compressor is started, when the temperature Tr of a refrigerating chamber is detected to be greater than or equal to the refrigerating starting temperature Trk, the refrigerating fan is controlled to be started; when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt, controlling the refrigerating fan to shut down;
and after the compressor is started, controlling the freezing fan to start, and when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft, controlling the freezing fan to shut down.
In a third aspect, a control device for a refrigerator is provided, which is applied to the refrigerator, and comprises:
the detection unit is used for detecting the temperature of the refrigerating chamber and the temperature of the freezing chamber;
the control unit is used for controlling the compressor to start when detecting that the temperature Tr of the refrigerating chamber is greater than or equal to the refrigerating starting temperature Trk or detecting that the temperature Tf of the freezing chamber is greater than or equal to the freezing starting temperature Tfk;
the control unit is used for controlling the compressor to stop when detecting that the temperature Tr of the refrigerating chamber is less than or equal to the refrigerating stop temperature Trt and detecting that the temperature Tf of the freezing chamber is less than or equal to the freezing stop temperature Tft;
the control unit is used for controlling the refrigeration fan to be started when the temperature Tr of the refrigeration chamber is detected to be greater than or equal to the refrigeration starting temperature Trk after the compressor is started; when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt, controlling the refrigerating fan to shut down;
and the control unit is used for controlling the freezing fan to start up after the compressor is started, and controlling the freezing fan to shut down when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft.
It can be understood that, the control method for the refrigerator provided by the second aspect and the control device for the refrigerator provided by the third aspect are used for controlling the refrigerator provided by the first aspect, so that the beneficial effects achieved by the control method for the refrigerator can refer to the beneficial effects of the method of the first aspect and the corresponding schemes in the following detailed description, and are not repeated herein.
In a fourth aspect, a control device for a refrigerator is provided, which is characterized by comprising a communication interface, a processor, a memory and a bus; the memory is used for storing computer execution instructions, the processor is connected with the memory through the bus, and when the terminal equipment runs, the processor executes the computer execution instructions stored in the memory, so that the control device of the refrigerator executes the method of the second aspect.
In a fifth aspect, there is provided a computer storage medium comprising instructions which, when run on a computer, cause the computer to perform the method of the second aspect as described above.
It can be understood that, for the beneficial effects achieved by the control device of the refrigerator provided by the fourth aspect and the computer storage medium provided by the fifth aspect, reference may be made to the above method and the beneficial effects of the corresponding solutions in the following detailed description, and details are not described here again.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a first schematic structural view of a refrigerator according to an embodiment of the present invention;
fig. 2 is a schematic structural view ii of a refrigerator according to an embodiment of the present invention;
fig. 3 is a schematic structural view three of a refrigerator according to an embodiment of the present invention;
fig. 4 is a flowchart of a control method of a refrigerator according to an embodiment of the present invention;
FIG. 5 is a graph illustrating the temperature of a compartment of a refrigerator, the temperature of an evaporator, and the operating power of a compressor according to an embodiment of the present invention;
fig. 6 is a graph illustrating the temperature of a compartment of a refrigerator, the temperature of an evaporator, and the operating power of a compressor according to another embodiment of the present invention;
fig. 7 is a schematic structural diagram of a control device of a refrigerator according to an embodiment of the present invention;
fig. 8 is a schematic structural diagram of a control device of a refrigerator according to another embodiment of the present invention.
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 derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
An embodiment of the present invention provides a refrigerator, as shown in fig. 1 and 2, including: the refrigeration system comprises a compressor 15, a condenser 16, a throttle pipe 17, a refrigeration evaporator 11 and a freezing evaporator 13 which are sequentially communicated according to the flow direction of a refrigerant; and the refrigerator also comprises a refrigerator fan 12 for sending the cold energy of the refrigerator evaporator 11 into the refrigerator compartment and a freezer fan 14 for sending the cold energy of the freezer evaporator 13 into the freezer compartment.
Thus, when the compressor is operated, the refrigerant output from the compressor 15 flows back to the compressor 15 through the condenser 16, the throttle pipe 17, and the refrigerating evaporator 11 and the freezing evaporator 13 in this order; when the refrigerating fan 12 is started, the cold energy of the refrigerating evaporator 11 is sent into the refrigerating chamber to refrigerate the refrigerating chamber, and when the freezing fan 14 is started, the cold energy of the freezing evaporator 13 is sent into the freezing chamber to refrigerate the freezing chamber. The refrigerating evaporator 11 and the freezing evaporator 13 may be fin evaporators. The refrigeration chamber and the freezing chamber are respectively provided with an evaporator and a fan, and the two evaporators are connected in series according to the flow of the refrigerant, so that when the compressor runs, the refrigerant output by the compressor from the outlet end sequentially flows back to the compressor through the refrigeration evaporator and the freezing evaporator, when the two fans are started, the cold energy of the refrigeration evaporator is sent into the refrigeration chamber, the cold energy of the freezing evaporator is sent into the freezing chamber, the two chambers are respectively refrigerated, the independent refrigeration of the chambers is realized, and the structure that the two evaporators are connected in series is directly realized, the flow direction of the refrigerant is not required to be controlled by an electromagnetic valve, and the running reliability of the refrigerator is improved.
In addition, it should be noted that, the refrigerant passes through the refrigeration evaporator first, and the thermal load of the refrigeration chamber is relatively small, so that the rapid refrigeration of the refrigeration can be realized, and the influence on the refrigeration evaporator is small.
Further, the refrigerator further includes a condensation preventing pipe 18 provided on a pipe between an inlet end of the condenser 16 and an outlet end of the compressor 15, and a dry filter 19 provided between the condenser 16 and the throttle pipe 17.
Referring to fig. 2, the refrigerator is a two-door or multi-door refrigerator, and the refrigerating chamber and the freezing chamber are internally provided with a separate evaporator and a fan, and the outlet end of the refrigerating evaporator is connected with the inlet end of the freezing evaporator. The refrigerant enters the refrigeration evaporator 11 and then enters the freezing evaporator 13; the refrigerating fan 12 and the freezing fan 14 are used for independently controlling the compartment to refrigerate. As shown in fig. 3, the refrigerating chamber and the freezing chamber have independent air supply and return systems which are independent from each other; the running process of the fan is a refrigerating process, the cold energy of the evaporator is brought to each chamber, and meanwhile, the cold energy enters the evaporator through the air return inlet to exchange heat, and the process is circulated. Specifically, the refrigeration principle of the refrigerator is as follows: the refrigerant is compressed into high-temperature high-pressure gas in a compressor 15, condensed into high-pressure liquid refrigerant through an anti-condensation pipe 16 and a condenser 17, dried through a drying filter 18, throttled and depressurized through a throttling pipe 19 (for example, a capillary throttling pipe), and then enters a refrigerating evaporator 11 of a refrigerating chamber and a freezing evaporator 13 of a freezing chamber to be evaporated, because the low-pressure liquid refrigerant needs to absorb heat in the evaporation process, the refrigeration fan 12 and the freezing fan 14 are started to carry out forced convection to bring the heat load of the refrigeration chamber and the freezing chamber to the evaporator for evaporation and heat exchange, so as to realize chamber refrigeration, for example, the refrigerating fan 12 sucks the high-temperature air flow in the refrigerating compartment into the passage where the refrigerating evaporator 11 is located through the refrigerating return air inlet, when the high-temperature air flow passes through the refrigeration evaporator 12, the heat exchange is carried out to form low-temperature air flow, and the low-temperature air flow flows back to the refrigeration chamber through the refrigeration air supply outlet to refrigerate the refrigeration chamber; the freezing fan 14 sucks the high-temperature air flow in the freezing chamber into a channel where the freezing evaporator 13 is located through a freezing air return opening, so that the high-temperature air flow is subjected to heat exchange to form low-temperature air flow when passing through the freezing evaporator 14, and the low-temperature air flow returns to the freezing chamber through a freezing air supply opening to refrigerate the freezing chamber; finally, the refrigerant is evaporated and then returns to the compressor to be compressed into high-temperature and high-pressure gas, and thus, the circulating refrigeration is carried out.
Based on the above refrigerator, an embodiment of the present invention provides a method for controlling a refrigerator, as shown in fig. 4, including the following steps:
101. and controlling the compressor to start when detecting that the temperature Tr of the refrigerating chamber is greater than or equal to the refrigerating starting temperature Trk or detecting that the temperature Tf of the freezing chamber is greater than or equal to the freezing starting temperature Tfk.
102. And when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating stop temperature Trt and the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing stop temperature Tft, controlling the compressor to stop.
103. After the compressor is started, when the temperature Tr of the refrigerating chamber is detected to be greater than or equal to the refrigerating starting temperature Trk, the refrigerating fan is controlled to be started; and when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt, controlling the refrigerating fan to shut down.
104. And after the compressor is started, controlling the freezing fan to start, and when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft, controlling the freezing fan to shut down.
Note that the refrigerating start-up temperature Trk is greater than the refrigerating stop temperature Trt, and the freezing start-up temperature Tfk is greater than the freezing stop temperature Tft. Each compartment of the refrigerator may be provided with a temperature sensor for detecting a temperature Tr of the refrigerating compartment and a temperature Tf of the freezing compartment. The above 101, 102, 103, and 104 do not limit the sequence, and it is understood that 103 and 104 can be performed simultaneously or one of them can be performed first.
In addition, in the shutdown state of the compressor, the refrigeration capacity of the refrigeration evaporator is fully utilized. The method further comprises the following steps: in the compressor shutdown state, when the temperature Tr of the refrigerating chamber is detected to be greater than or equal to the refrigerating shutdown temperature Trt and the temperature Tvr of the refrigerating evaporator is detected to be less than or equal to a first preset temperature, the refrigerating fan is controlled to be started, and the first preset temperature is less than or equal to zero degree. In the shutdown state of the compressor, when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt or the temperature Tvr of the refrigerating evaporator is detected to be greater than a second preset temperature, the refrigerating fan is controlled to be shut down, and the first preset temperature is greater than zero degree. Wherein the temperature Tvr of the refrigerated evaporator can be collected using a temperature sensor disposed on the refrigerated evaporator.
Specifically, referring to the operation parameter curve of the refrigerator provided in fig. 5, which includes the temperature of the refrigerating compartment, the temperature of the freezing compartment, the temperature of the refrigerating evaporator, the temperature of the freezing evaporator, and the effective power of the compressor, the control method is specifically described as follows: the temperature Tr of the refrigerating chamber reaches a refrigerating starting temperature Trk (Tr is more than or equal to Trk), or the temperature Tf of the freezing chamber reaches a freezing starting temperature Tfk (Tf is more than or equal to Tfk), at the moment (t1 moment), the refrigerator needs to refrigerate, the compressor is controlled to be started, the temperatures of the refrigerating evaporator and the freezing evaporator are reduced, and meanwhile, the refrigerating fan and the freezing fan are started. It should be noted that, under the influence of the start-up of the refrigeration fan, the temperature of the refrigeration evaporator is relatively high (compared with the stop of the refrigeration fan), but because the evaporation temperature of the refrigeration evaporator is lower than the temperature of the refrigeration chamber, the refrigeration chamber can be refrigerated, after the refrigeration chamber completes the refrigeration (namely Tr is less than or equal to Trt), the refrigeration fan is stopped (time t 2), because the system needs to be rebalanced after the refrigeration fan is stopped, the refrigeration evaporation temperature is rapidly reduced at this time, the temperature of the refrigeration chamber can be rapidly pulled to a stop point (time t 3) (namely Tf is less than or equal to Tft), and when the temperatures of the refrigeration chamber and the refrigeration chamber reach the stop point, the compressor is stopped; after the compressor is shut down, the temperatures of the refrigerating evaporator and the freezing evaporator rise, and the refrigerating evaporation temperature is lower during the shutdown, so that as long as the temperature of the refrigerating compartment is higher than a shutdown point (Tr is greater than Trt), and the temperature of the refrigerating evaporator (which can be acquired by a temperature sensor arranged on the refrigerating evaporator) Trv is less than or equal to 0 ℃, the refrigerating fan is controlled to be started, the residual cold of the refrigerating evaporator can be taken out to refrigerate the refrigerating compartment, and meanwhile, as the return air temperature of the refrigerating compartment is high, the temperature of the refrigerating evaporator can rise to be more than 0 ℃ along with the increase of the shutdown time and the starting time of the fan (such as the time t4-t5 in the figure 5), so that; and in the shutdown state of the compressor, controlling the refrigeration fan to shut down when the temperature Tr of the refrigeration compartment is less than or equal to the refrigeration shutdown temperature Trt or the temperature Tvr of the refrigeration evaporator is greater than 0 ℃. And after the temperature of the refrigerating chamber rises to the refrigerating starting temperature (Tr is more than or equal to Trk) or the temperature of the freezing chamber rises to the freezing starting temperature (Tf is more than or equal to Tfk), the compressor starts refrigerating again, and the process is circulated. In summary, the refrigeration fan is controlled as follows: when the compressor is started, Tr is more than or equal to Trk, the refrigerating fan is started, Tr is less than or equal to Trt, and the refrigerating fan is stopped; when the compressor is stopped, Trt is greater than Trt and Tvr is less than or equal to 0 ℃, the refrigeration fan is started, Tr is less than or equal to Trt or Tvr is greater than or equal to 2 ℃ (in order to prevent the evaporator from being overheated, the temperature of the refrigeration chamber rises too fast when the fan is operated), and the refrigeration fan is stopped.
It should be noted that, the above is described in terms of Tr being less than or equal to Trt after the refrigeration compartment completes refrigeration first, and the refrigeration fan is shut down first, if the temperature of the refrigeration compartment reaches the shutdown temperature first, as shown in fig. 6, after the temperature of the refrigeration compartment reaches the refrigeration shutdown temperature (at time t 2), the refrigeration fan is shut down, and at this time, the refrigeration compartment needs refrigeration, if the refrigeration fan is shut down and the overall heat load of the refrigerator is reduced (at time t2-t3, the effective power of the compressor is reduced), the refrigeration fan of the refrigeration compartment cannot bring the heat load of the refrigeration compartment to the refrigeration evaporator for forced heat exchange, so the evaporation temperature of the freezing compartment is pulled very low, as shown in fig. 6, the effective power of the compressor is greatly reduced, which causes the refrigeration efficiency of the refrigerator to be low, and in order to avoid the above problems, after the compressor is started (at time t1-t 3), when it is detected that the temperature Tf of, and after the refrigeration fan is shut down, the refrigeration fan is controlled to be shut down. Namely, in the time interval of t1-t3, the freezing fan is controlled to be in a normally open state, and even if the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft, the freezing fan is still shut down after the refrigeration fan is shut down (namely the time t3 after the refrigeration of the refrigeration chamber is finished), so that the refrigeration efficiency of the refrigerator is improved.
Referring to fig. 7, there is provided a control apparatus for a refrigerator, which is applied to the refrigerator provided in the above embodiment, and includes:
a detection unit 71 for detecting the temperature of the refrigerating compartment and the temperature of the freezing compartment;
the control unit 72 is used for controlling the compressor to start when detecting that the temperature Tr of the refrigerating chamber is greater than or equal to the refrigerating starting temperature Trk or detecting that the temperature Tf of the freezing chamber is greater than or equal to the freezing starting temperature Tfk;
the control unit 72 is used for controlling the compressor to stop when detecting that the temperature Tr of the refrigerating chamber is less than or equal to the refrigerating stop temperature Trt and detecting that the temperature Tf of the freezing chamber is less than or equal to the freezing stop temperature Tft;
the control unit 72 is configured to control the refrigeration fan to start up when detecting that the temperature Tr of the refrigeration compartment is greater than or equal to the refrigeration start-up temperature Trk after the compressor is started; when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt, controlling the refrigerating fan to shut down;
and the control unit 72 is used for controlling the freezing fan to start up after the compressor is started, and controlling the freezing fan to shut down when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft.
Optionally, the control unit 72 is configured to, after the compressor is started, control the freezing fan to shut down when detecting that the temperature Tf of the freezing compartment is less than or equal to a freezing shutdown temperature Tft and after the refrigerating fan is shut down.
Optionally, the control unit 72 is configured to, in a shutdown state of the compressor, control the refrigeration fan to start when it is detected that the temperature Tr of the refrigeration compartment is greater than the refrigeration shutdown temperature Trt and the temperature Tvr of the refrigeration evaporator is less than or equal to a first preset temperature, where the first preset temperature is less than or equal to zero degrees.
Optionally, the control unit 72 is configured to, in a shutdown state of the compressor, control the refrigeration fan to shut down when detecting that the temperature Tr of the refrigeration compartment is less than or equal to the refrigeration shutdown temperature Trt or detecting that the temperature Tvr of the refrigeration evaporator is greater than a second preset temperature, where the first preset temperature is greater than zero degree.
All relevant contents of each step related to the above method embodiment may be referred to the functional description of the corresponding functional module, and the function thereof is not described herein again.
In case of adopting the integrated module, the control apparatus of the refrigerator includes: the device comprises a storage unit, a processing unit and an interface unit. The processing unit is used for controlling and managing the actions of the control device of the refrigerator, for example, the processing unit is used for supporting the control device of the refrigerator to execute the process 101 and 104 in fig. 4. The interface unit is used for supporting the interaction of the control device of the refrigerator and other devices, such as the interaction with the sensor, the temperature in the room, the temperature of the evaporator, the ambient humidity and the like, and the storage unit is used for storing program codes and data of the control device of the refrigerator.
For example, the processing unit is a processor, the storage unit is a memory, and the interface unit is a communication interface. The control device of the refrigerator shown in fig. 8 includes a communication interface 801, a processor 802, a memory 803, and a bus 804, and the communication interface 801 and the processor 802 are connected to the memory 803 through the bus 804.
The processor 802 may be a general-purpose Central Processing Unit (CPU), a microprocessor, an Application-Specific Integrated Circuit (ASIC), or one or more Integrated circuits configured to control the execution of programs in accordance with the teachings of the present disclosure.
The Memory 803 may be a Read-Only Memory (ROM) or other type of static storage device that can store static information and instructions, a Random Access Memory (RAM) or other type of dynamic storage device that can store information and instructions, an Electrically Erasable Programmable Read-Only Memory (EEPROM), a Compact Disc Read-Only Memory (CD-ROM) or other optical Disc storage, optical Disc storage (including Compact Disc, laser Disc, optical Disc, digital versatile Disc, blu-ray Disc, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, but is not limited to these. The memory may be self-contained and coupled to the processor via a bus. The memory may also be integral to the processor.
The memory 803 is used for storing application program codes for executing the scheme of the application, and the execution of the application program codes is controlled by the processor 802. The communication interface 801 is used to obtain the contents of other devices, such as the temperature in the room, the temperature of the evaporator, and the ambient humidity, etc. through interaction with the sensor. The processor 802 is configured to execute application program code stored in the memory 803 to implement the methods described in the embodiments of the present application.
Further, a computing storage medium (or media) is also provided, comprising instructions which, when executed, perform the operations of the method in the above embodiments, and which, when executed on a computer, cause the computer to perform the above method embodiments.
Additionally, a computer program product is also provided, comprising the above-described computing storage medium (or media).
It should be understood that, in various embodiments of the present invention, the sequence numbers of the above-mentioned processes do not mean the execution sequence, and the execution sequence of each process should be determined by its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present invention.
Those of ordinary skill in the art will appreciate that the various illustrative elements and algorithm steps described in connection with the embodiments disclosed herein may be implemented as electronic hardware or combinations of computer software and electronic hardware. Whether such functionality is implemented as hardware or software depends upon the particular application and design constraints imposed on the implementation. Skilled artisans may implement the described functionality in varying ways for each particular application, but such implementation decisions should not be interpreted as causing a departure from the scope of the present invention.
It is clear to those skilled in the art that, for convenience and brevity of description, the specific working processes of the above-described systems, apparatuses and units may refer to the corresponding processes in the foregoing method embodiments, and are not described herein again.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus, and method may be implemented in other ways. For example, the above-described device embodiments are merely illustrative, and for example, the division of the units is only one logical functional division, and other divisions may be realized in practice, for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection through some interfaces, devices or units, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
The functions, if implemented in the form of software functional units and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present invention may be embodied in the form of a software product, which is stored in a storage medium and includes instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present invention. And the aforementioned storage medium includes: a U disk, a removable hard disk, a read-only memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims (6)

1. The control method of the refrigerator is characterized by being applied to the refrigerator, wherein the refrigerator comprises a refrigerating system, and the refrigerating system comprises a compressor, a condenser, a throttle pipe, a refrigerating evaporator and a freezing evaporator which are sequentially communicated according to the flow direction of a refrigerant; the refrigeration system also comprises a refrigeration fan used for sending the cold energy of the refrigeration evaporator into a refrigeration chamber and a freezing fan used for sending the cold energy of the freezing evaporator into a freezing chamber;
the refrigerator also comprises an anti-condensation pipe arranged on a pipeline between the inlet end of the condenser and the outlet end of the compressor, and a dry filter arranged between the condenser and the throttle pipe;
the control method comprises the following steps: when the temperature Tr of the refrigerating chamber is detected to be greater than or equal to the refrigerating starting temperature Trk or the temperature Tf of the freezing chamber is detected to be greater than or equal to the freezing starting temperature Tfk, controlling the compressor to start;
when detecting that the temperature Tr of the refrigerating chamber is less than or equal to the refrigerating stop temperature Trt and detecting that the temperature Tf of the freezing chamber is less than or equal to the freezing stop temperature Tft, controlling the compressor to stop;
after the compressor is started, when the temperature Tr of a refrigerating chamber is detected to be greater than or equal to the refrigerating starting temperature Trk, the refrigerating fan is controlled to be started; when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt, controlling the refrigerating fan to shut down;
after the compressor is started, controlling the refrigerating fan to start; when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft, controlling the freezing fan to shut down;
the method further comprises the following steps: after the compressor is started, when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft, and the refrigerating fan is controlled to be shut down after being shut down.
2. The method of claim 1, wherein in the compressor off state, when it is detected that the temperature Tr of the refrigerating compartment is greater than the refrigerating off temperature Trt and the temperature Tvr of the refrigerating evaporator is equal to or less than a first preset temperature, the refrigerating fan is controlled to be turned on, and the first preset temperature is equal to or less than zero degrees.
3. The method of claim 1, wherein in the compressor off state, when the temperature Tr of the refrigerating compartment is detected to be equal to or less than the refrigerating off temperature Trt or the temperature Tvr of the refrigerating evaporator is detected to be greater than a second preset temperature, the refrigerating fan is controlled to be turned off, and the second preset temperature is greater than zero degree.
4. The control device of the refrigerator is characterized by being applied to the refrigerator, wherein the refrigerator comprises a refrigerating system, and the refrigerating system comprises a compressor, a condenser, a throttle pipe, a refrigerating evaporator and a freezing evaporator which are sequentially communicated according to the flow direction of a refrigerant; the refrigeration system also comprises a refrigeration fan used for sending the cold energy of the refrigeration evaporator into a refrigeration chamber and a freezing fan used for sending the cold energy of the freezing evaporator into a freezing chamber;
the refrigerator also comprises an anti-condensation pipe arranged on a pipeline between the inlet end of the condenser and the outlet end of the compressor, and a dry filter arranged between the condenser and the throttle pipe;
the control device includes:
the detection unit is used for detecting the temperature of the refrigerating chamber and the temperature of the freezing chamber;
the control unit is used for controlling the compressor to start when detecting that the temperature Tr of the refrigerating chamber is greater than or equal to the refrigerating starting temperature Trk or detecting that the temperature Tf of the freezing chamber is greater than or equal to the freezing starting temperature Tfk;
the control unit is used for controlling the compressor to stop when detecting that the temperature Tr of the refrigerating chamber is less than or equal to the refrigerating stop temperature Trt and detecting that the temperature Tf of the freezing chamber is less than or equal to the freezing stop temperature Tft;
the control unit is used for controlling the refrigeration fan to be started when the temperature Tr of the refrigeration chamber is detected to be greater than or equal to the refrigeration starting temperature Trk after the compressor is started; when the temperature Tr of the refrigerating chamber is detected to be less than or equal to the refrigerating shutdown temperature Trt, controlling the refrigerating fan to shut down;
the control unit is used for controlling the freezing fan to start up after the compressor is started, and controlling the freezing fan to shut down when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft;
and the control unit is used for controlling the freezing fan to shut down after the compressor is started and the refrigerating fan is shut down when the temperature Tf of the freezing chamber is detected to be less than or equal to the freezing shutdown temperature Tft.
5. The control apparatus of a refrigerator according to claim 4, wherein the control unit is configured to control the refrigerating fan to be turned on when it is detected that the temperature Tr of the refrigerating compartment is greater than the refrigerating stop temperature Trt and the temperature Tvr of the refrigerating evaporator is equal to or less than a first preset temperature in the compressor stop state, the first preset temperature being equal to or less than zero degrees.
6. The control apparatus of a refrigerator according to claim 4, wherein the control unit is configured to control the refrigerating fan to be turned off when detecting that the temperature Tr of the refrigerating compartment is equal to or less than the refrigerating stop temperature Trt or detecting that the temperature Tvr of the refrigerating evaporator is greater than a second preset temperature in the compressor stop state, the second preset temperature being greater than zero degrees.
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CN110360778B (en) * 2019-07-14 2021-07-06 南京创维家用电器有限公司 Low-temperature starting control method for mechanical air door air-cooled refrigerator
CN111023672B (en) * 2019-12-30 2021-11-09 长虹美菱股份有限公司 Air-cooled refrigerator and control method thereof
CN111765687A (en) * 2020-05-19 2020-10-13 中国电器科学研究院股份有限公司 Quick cooling method for mechanical direct cooling refrigerator
CN113865197A (en) * 2021-09-22 2021-12-31 长虹美菱股份有限公司 Tea bar machine and refrigeration system control method based on same

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