CN114251893A - Air-cooled refrigerator and sterilization method thereof - Google Patents
Air-cooled refrigerator and sterilization method thereof Download PDFInfo
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- CN114251893A CN114251893A CN202011025001.3A CN202011025001A CN114251893A CN 114251893 A CN114251893 A CN 114251893A CN 202011025001 A CN202011025001 A CN 202011025001A CN 114251893 A CN114251893 A CN 114251893A
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- 230000001954 sterilising effect Effects 0.000 title claims abstract description 256
- 238000004659 sterilization and disinfection Methods 0.000 title claims abstract description 190
- 238000000034 method Methods 0.000 title claims abstract description 60
- 238000001514 detection method Methods 0.000 claims abstract description 16
- 238000005057 refrigeration Methods 0.000 claims description 59
- 238000010438 heat treatment Methods 0.000 claims description 30
- 239000000126 substance Substances 0.000 claims description 9
- 238000004590 computer program Methods 0.000 claims description 3
- 230000036541 health Effects 0.000 abstract description 11
- 230000000694 effects Effects 0.000 abstract description 7
- 230000008569 process Effects 0.000 description 13
- 230000006866 deterioration Effects 0.000 description 11
- 238000001816 cooling Methods 0.000 description 5
- 230000003749 cleanliness Effects 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000004913 activation Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000005265 energy consumption Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000005494 condensation Effects 0.000 description 2
- 238000009833 condensation Methods 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000004332 deodorization Methods 0.000 description 1
- 230000001877 deodorizing effect Effects 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000008030 elimination Effects 0.000 description 1
- 238000003379 elimination reaction Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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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
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25D—REFRIGERATORS; COLD ROOMS; ICE-BOXES; COOLING OR FREEZING APPARATUS NOT OTHERWISE PROVIDED FOR
- F25D17/00—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces
- F25D17/04—Arrangements for circulating cooling fluids; Arrangements for circulating gas, e.g. air, within refrigerated spaces for circulating air, e.g. by convection
- F25D17/042—Air treating means within refrigerated spaces
- F25D17/045—Air flow control arrangements
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- 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
- F25D2317/04—Treating air flowing to refrigeration compartments
- F25D2317/041—Treating air flowing to refrigeration compartments by purification
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- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- Thermal Sciences (AREA)
- General Engineering & Computer Science (AREA)
- Cold Air Circulating Systems And Constructional Details In Refrigerators (AREA)
- Devices That Are Associated With Refrigeration Equipment (AREA)
Abstract
The invention provides an air-cooled refrigerator and a sterilization method thereof. The air-cooled refrigerator comprises a storage chamber, a detection device and a sterilization device, wherein the detection device is used for detecting the running state parameters of the storage chamber. The sterilization method comprises the following steps: after a refrigerating system of the air-cooled refrigerator starts to operate each time, acquiring an indicating signal for indicating the stable operation of a fan of the refrigerating system; acquiring running state parameters of the storage chamber; judging whether the operating state parameters of the storage chamber meet the starting conditions of the sterilization device or not; if yes, the sterilization device is started to operate in a preset mode. The sterilization method can dynamically and reasonably control the sterilization device to start according to the operating state parameters of the storage chamber, improves the utilization efficiency of the sterilization device while ensuring the sterilization effect, and solves the problems that the sterilization module of the refrigerator in the prior art is frequently started due to fixed starting conditions, the health of a user is influenced, and energy is wasted.
Description
Technical Field
The invention relates to the technical field of refrigeration equipment, in particular to an air-cooled refrigerator and a sterilization method thereof.
Background
With the improvement of quality of life and the iterative upgrade of refrigerators, the functions of refrigerators are increasing, and the kinds and the number of articles stored in the refrigerators are also increasing. However, the articles stored in the refrigerator are deteriorated and rotten for a long time, and therefore, it is necessary to introduce a sterilization module into the refrigerator to deodorize and sterilize the refrigerator. Various solutions for sterilizing refrigerators, such as air-cooled refrigerators, have been developed in the prior art. However, in the existing solutions, the starting condition of the sterilization module of the refrigerator is usually fixed, for example, the sterilization module is started after the refrigeration system of the refrigerator is stably operated each time, and the different requirements for starting sterilization due to the difference between the storage condition of the refrigerator and the stored goods are not considered, so that frequent starting of the sterilization module not only increases the risk of affecting the health of the user, but also causes unnecessary energy consumption. Therefore, a solution for more reasonably controlling the start and operation of the sterilization module is needed.
Disclosure of Invention
In view of the above problems, the present invention has been made to provide a sterilization method of an air-cooled refrigerator and an air-cooled refrigerator that overcome or at least partially solve the above problems.
The invention aims to provide a sterilization method of an air-cooled refrigerator, which can dynamically and reasonably control the start of a sterilization device according to the running state parameters of a storage chamber.
A further object of the present invention is to ensure cleanliness in the storage compartment during the first refrigeration cycle after power-on of the air-cooled refrigerator by controlling the sterilizing device to continue operating in a preset manner until the refrigeration system is turned off after power-on of the air-cooled refrigerator, thereby greatly reducing the risk of deterioration and decay of stored goods due to high temperature at the initial stage of power-on.
Particularly, according to one aspect of the invention, the invention provides a sterilization method of an air-cooled refrigerator, wherein the air-cooled refrigerator comprises a storage chamber, a detection device for detecting the operating state parameters of the storage chamber, and a sterilization device; the sterilization method comprises the following steps:
after a refrigerating system of the air-cooled refrigerator starts to operate each time, acquiring an indicating signal for indicating the stable operation of a fan of the refrigerating system;
acquiring running state parameters of the storage chamber;
judging whether the operating state parameters of the storage chamber meet the starting conditions of the sterilization device or not;
if yes, the sterilization device is started to operate in a preset mode.
Optionally, before acquiring the operating state parameter of the storage compartment, the sterilization method further includes:
judging whether the refrigerating system is operated for the first time after the air-cooled refrigerator is powered on;
if not, executing the step of obtaining the operating state parameters of the storage chamber;
if so, starting the sterilizing device to operate in a preset mode until the refrigerating system is closed.
Optionally, the sterilizing device is controlled to operate in a sterilization mode to release a sterilizing substance, a heating mode to generate heat, or a shutdown mode;
starting the sterilizing device to operate in a preset mode, comprising:
and controlling the sterilizing device to circularly operate in a mode of circularly alternating a shutdown mode, a sterilizing mode and a heating mode according to preset period parameters, wherein the period parameters comprise respective time lengths of the sterilizing device in the shutdown mode, the sterilizing mode and the heating mode in the circulation period of the sterilizing device.
Optionally, the detection means comprises a temperature sensor and a pressure sensor;
the operation state parameters of the storage chamber comprise the temperature of the storage chamber and the weight of stored articles;
the starting conditions of the sterilization device comprise that the temperature of the storage chamber is greater than or equal to a preset temperature threshold value and the weight of the stored articles is greater than or equal to a preset weight threshold value.
Optionally, the detection device further comprises a humidity sensor;
the operating state parameters of the storage chamber also comprise the humidity of the storage chamber;
the starting condition of the sterilization device also comprises that the humidity of the storage chamber is greater than or equal to a preset humidity threshold value.
Optionally, before controlling the sterilization apparatus to cyclically operate in a manner of cyclically alternating the shutdown mode, the sterilization mode and the heating mode, the sterilization method further comprises:
and controlling the sterilizing device to preheat for a specified time in a heating mode.
Optionally, if the refrigeration system is not operated for the first time after the air-cooled refrigerator is powered on, after controlling the sterilization device to cyclically operate in a shutdown mode, a sterilization mode and a heating mode in a cyclically alternating manner, the sterilization method further comprises:
counting the number of cycles of the sterilization device and detecting the operation state of the refrigeration system;
and if the cycle number reaches the target number threshold or the operation state of the refrigerating system is closed, closing the sterilizing device.
Optionally, during the process of starting the sterilization device to operate in the preset mode, the sterilization method further includes:
detecting the opening and closing state of a door body of the storage compartment;
and if the door body of the storage chamber is in an open state, closing the sterilizing device until the door body of the storage chamber is in a closed state, and then starting the sterilizing device to operate in a preset mode.
Optionally, during the process of starting the sterilization device to operate in the preset mode, the sterilization method further includes:
detecting the running state of a fan of a refrigeration system;
and if the running state of the fan is shutdown or failure, closing the sterilizing device.
According to another aspect of the present invention, there is also provided an air-cooled refrigerator comprising:
the box body defines a storage chamber;
the refrigerating system comprises a fan and is used for generating and conveying refrigerating airflow for the storage chamber;
the detection device is used for detecting the running state parameters of the storage chamber;
a sterilizing device for releasing a sterilizing substance; and
a controller comprising a memory and a processor, wherein the memory has stored therein computer program code which, when executed by the processor, causes the controller to perform the method of sterilizing an air-cooled refrigerator according to any of the preceding.
According to the sterilization method of the air-cooled refrigerator, after the indication signal indicating the stable operation of the fan of the refrigeration system is obtained, the operation state parameters of the storage chamber are firstly obtained, and only after the operation state parameters of the storage chamber are judged to be in accordance with the starting conditions of the sterilization device, the sterilization device is started to operate in a preset mode. The sterilization method can dynamically and reasonably control the sterilization device to start according to the operating state parameters of the storage chamber, improves the utilization efficiency of the sterilization device while ensuring the sterilization effect, and solves the problems that the sterilization module of the refrigerator in the prior art is frequently started due to fixed starting conditions, the health of a user is influenced, and energy is wasted.
Furthermore, the sterilizing device is controlled to continuously operate in a preset mode until the refrigerating system is closed after the air-cooled refrigerator is powered on when the refrigerating system operates for the first time, so that the cleanliness of the inside of the storage chamber in the first refrigerating period after the air-cooled refrigerator is powered on is ensured, and the risk of deterioration and rot of stored articles caused by high temperature in the initial stage of power on is greatly reduced.
The above and other objects, advantages and features of the present invention will become more apparent to those skilled in the art from the following detailed description of specific embodiments thereof, taken in conjunction with the accompanying drawings.
Drawings
Some specific embodiments of the invention will be described in detail hereinafter, by way of illustration and not limitation, with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:
fig. 1 is a schematic structural block diagram of an air-cooled refrigerator according to one embodiment of the present invention;
fig. 2 is a schematic structural block diagram of an air-cooled refrigerator according to another embodiment of the present invention;
fig. 3 is a flowchart illustrating a sterilization method of an air-cooled refrigerator according to an embodiment of the present invention;
fig. 4 is a flowchart illustrating a sterilization method of an air-cooled refrigerator according to another embodiment of the present invention;
fig. 5 is a flowchart illustrating a sterilization method of an air-cooled refrigerator according to still another embodiment of the present invention.
Detailed Description
Generally, the temperature and humidity of a refrigerator directly affect the quality of stored articles (food) and cause the stored articles (food) to be changed in quality so as to generate taste and bacteria, so that the temperature and humidity of the refrigerator are reasonably controlled to slow down the speed of food quality deterioration, but the food can also be changed in quality after being stored for too long time, therefore, some proposals have been made at present, and a deodorizing and sterilizing module is introduced into the refrigerator to deodorize and sterilize in the operation process of the refrigerator so as to ensure the quality of the food. However, frequent opening of the sterilization module may have an effect on the health of the user, and thus it becomes important to properly control the operation of the sterilization module.
Therefore, the embodiment of the invention provides an air-cooled refrigerator and a sterilization method thereof.
Fig. 1 shows a schematic block diagram of an air-cooled refrigerator 10 according to one embodiment of the present invention. The air-cooled refrigerator 10 may generally include a cabinet, a refrigeration system, a detection device 120, a sterilization device 130, and a controller 150. The cabinet defines a storage compartment 110 (which may be a refrigeration compartment, in particular). The refrigeration system includes a fan 140 for generating and delivering a flow of refrigerated air to the storage compartment 110. Of course, the refrigeration system may further include a compressor, an evaporator, etc., which should be known to those skilled in the art and will not be described further. The detection device 120 may be disposed in the storage compartment 110 or any other suitable location for detecting an operating state parameter of the storage compartment 110. The sterilization device 130 is used to release sterilization substances (such as sterilization ions, sterilization gas, etc.), and the sterilization substances can be transmitted by the airflow driven by the fan 140, so as to deodorize and sterilize the storage compartment 110 or the whole interior of the air-cooled refrigerator 10. Preferably, the sterilization device 130 can be disposed adjacent to or in an air flow path (e.g., an air supply duct providing a cooling air flow to the storage compartment 110) downstream of the fan 140, and the air flow delivery can be used to increase the diffusion efficiency of the sterilization substance generated by the sterilization device 130, thereby increasing the odor elimination sterilization efficiency. The controller 150 may be connected to the blower 140, the detecting device 120, and the sterilizing device 130, respectively. The controller 150 may include a memory 151 and a processor 152. The memory 151 stores therein computer program code, which, when executed by the processor 152, causes the controller 150 to execute a sterilization method of the air-cooled refrigerator described below. It should be noted that fig. 1 only schematically illustrates the connection relationship between the components, and does not limit the actual positional relationship between the components. In addition, the cabinet and the refrigeration system are not shown in fig. 1 so as not to obscure and obscure the inventive aspects of the present application, but those skilled in the art will be aware of the structure and arrangement of the cabinet and the refrigeration system.
Specifically, the processor 152 may be an MCU (micro control Unit) which is connected to the sterilization apparatus 130 through four lines of VCC (power supply voltage), GND (ground), CTRL (control) and FD (feedback), and connected to the blower 140 through four lines of VCC, FD, PWM (pulse width modulation) and GND. The detection device 120 communicates with the processor 152 via an I2C (Inter Integrated-Circuit bus).
Correspondingly, the embodiment of the invention also provides a sterilization method of the air-cooled refrigerator, which is applied to the air-cooled refrigerator 10 of the invention and can be executed by the controller 150. Fig. 3 is a flowchart illustrating a sterilization method of an air-cooled refrigerator according to an embodiment of the present invention. Referring to fig. 3, the sterilization method may include at least the following steps S302 to S308.
Step S302, after the refrigeration system of the air-cooled refrigerator 10 starts to operate each time, an indication signal indicating that the fan 140 of the refrigeration system operates stably is obtained.
In this step, the indication signal may be determined by detecting an operation state parameter (such as voltage or rotational speed) of the fan 140, and when the operation state parameter of the fan 140 reaches a set range, it is determined that the fan 140 is stably operated. For example, when the rotation speed of the fan 140 is detected to reach the set rotation speed range (e.g., 990-. When the fan 140 is in a stable operation state, the sterilizing substances can be rapidly and effectively uniformly diffused, the sterilizing effect is guaranteed, and health risks caused by overhigh local concentration are avoided.
Step S304, obtaining the operating state parameters of the storage compartment 110.
Step S306, determining whether the operating condition of the sterilization device 130 is satisfied according to the operating state parameters of the storage chamber 110. If yes, go to step S308.
In step S308, the sterilization device 130 is started to operate in a predetermined manner. The operation of the sterilization device 130 in this step is not particularly limited, as long as the sterilization device 130 can perform the necessary sterilization function to deodorize and sterilize the inside of the air-cooled refrigerator 10.
In this embodiment, the sterilization device 130 can be dynamically and reasonably controlled to be started according to the operating state parameters of the storage chamber 110, so that the sterilization effect is ensured, the utilization efficiency of the sterilization device 130 is improved, and the problems that the sterilization module of the refrigerator is frequently started due to the fixed starting conditions, the health of a user is affected and energy waste is caused in the prior art are solved.
In one embodiment, the sterilizing device 130 may be configured to operate in a sterilizing mode, a heating mode, or a shutdown mode in a controlled manner. In the sterilization mode, the sterilization device 130 is activated to generate a sterilization substance for deodorization and sterilization. The sterilizing device 130 generates heat to remove condensation in the heating mode. The sterilizing device 130 stops operating in the stop mode. Accordingly, step S308 may be further implemented as: the sterilizing device 130 is controlled to cyclically operate in a shutdown mode, a sterilization mode and a heating mode cyclically alternating. The mode of cyclically alternating the shutdown mode, the sterilization mode and the heating mode enables the sterilization device 130 to pause for a short time after the sterilization mode and the heating mode are operated, so as to accumulate energy for the next operation, ensure the normal operation of the sterilization device 130 and delay the service life of the sterilization device.
Further, the sterilization apparatus 130 may be controlled to cyclically operate in the shutdown mode, the sterilization mode and the heating mode according to preset cycle parameters in step S308. The cycle parameter herein includes respective periods of time during which the sterilizing apparatus 130 is operated in the stop mode, the sterilization mode and the heating mode in the cycle of the sterilizing apparatus 130. For example, if the preset shutdown mode duration is T1 seconds, the sterilization mode duration is T2 seconds, and the heating mode duration is T3 seconds, the sterilization apparatus 130 is activated and then is suspended for T1 seconds in the shutdown mode, then operates for T2 seconds in the sterilization mode, then operates for T3 seconds in the heating mode, then performs the shutdown mode for T1 seconds, and so on. The preset time period T1 of the shutdown mode, the time period T2 of the sterilization mode and the time period T3 of the heating mode may be set according to the actual situation and application requirement of the sterilization device 130 and the air-cooled refrigerator 10, and the present invention is not limited thereto.
In one embodiment, referring to fig. 4, before performing step S304, the method for sterilizing an air-cooled refrigerator according to the present invention may further include the steps of:
step S303, determine whether the refrigeration system is operated for the first time after the air-cooled refrigerator 10 is powered on. That is, it is determined whether the refrigeration system is in the first refrigeration cycle after the air-cooled refrigerator 10 is powered on. If not, the step S304 is continued. If yes, go to step S310.
Specifically, the first start time and the first shutdown time of the refrigeration system may be recorded at each power-on (including the first power-on and the power-off and then the power-on) of the air-cooled refrigerator 10, and a flag indicating that the refrigeration system has completed the first cooling operation may be generated according to the recorded first start time and the recorded first shutdown time of the refrigeration system. The flag bit is cleared after the refrigerator is powered off. Thus, in step S303, it is determined whether the refrigeration system is operated for the first time after the air-cooled refrigerator 10 is powered on by determining whether the flag currently exists. If the flag does not exist at present, it is determined that the refrigeration system is operated for the first time after the air-cooled refrigerator 10 is powered on. If the flag bit exists at present, it is determined that the refrigeration system is not operated for the first time after the air-cooled refrigerator 10 is powered on.
Step S310, the sterilization device 130 is started to operate in the preset manner until the refrigeration system is turned off. Since the refrigerator is usually transited from a high temperature state (much higher than the storage temperature of the storage compartment) to a low temperature state in the first refrigeration cycle after the refrigerator is powered on, the risk of deterioration and rot of the stored goods is greatly increased, and therefore, the sterilization device 130 is continuously operated in a preset manner in the first refrigeration cycle until the refrigeration system is turned off. The operation of the sterilization device 130 in this step is preset in the same manner as that in step S308, and will not be described herein again.
In the embodiment, after the air-cooled refrigerator 10 is powered on, the sterilizing device 130 is controlled to continuously operate in a preset mode until the refrigerating system is turned off after the refrigerating system operates for the first time, so that the cleanliness of the storage chamber 110 in the first refrigerating cycle after the air-cooled refrigerator 10 is powered on is ensured, and the risk of deterioration and rot of stored articles due to high temperature at the initial stage of power on is greatly reduced.
The solution of the present invention can dynamically start the sterilizing device 130 according to the operation state parameters of the storage compartment 110 of the air-cooled refrigerator 10. The operation state parameter of the storage compartment 110 refers to a parameter representing the storage condition of the articles in the storage compartment 110, and the deterioration speed of the articles is different under different storage conditions, so that the requirement for sterilization is different. In one embodiment, referring to fig. 2, the detection device 120 of the air-cooled refrigerator 10 may include a temperature sensor 121 and a pressure sensor 122. The temperature sensor 121 may be disposed in the storage compartment 110, for example, and detects the temperature of the storage compartment 110. The pressure sensor 122 may be disposed at a position such as a rack or a lower portion of the rack of the storage compartment 110, and calculates the weight of the stored articles in the storage compartment 110 according to the sensed pressure.
Accordingly, in the sterilization method of the air-cooled refrigerator, the operation state parameters of the storage compartment 110 acquired in step S304 may include the temperature of the storage compartment 110 and the weight of the stored articles. Which are obtained by the aforementioned temperature sensor 121 and pressure sensor 122, respectively. Furthermore, the activation condition of the sterilization device 130 in step S306 may include that the temperature of the storage compartment 110 is greater than or equal to a preset temperature threshold and the weight of the stored articles is greater than or equal to a preset weight threshold. Since the higher the temperature is, the higher the deterioration and decay speed of the articles is, and in addition, the more the stored articles are, the more the heat and moisture emitted from the articles are, the higher the deterioration and decay speed and probability of the articles are, and when the amount of the stored articles is very small or even not, frequent sterilization is not needed, so that the sterilization device 130 is started to sterilize when the temperature of the storage compartment 110 and the weight of the stored articles reach respective preset threshold values, thereby effectively improving the utilization efficiency of the sterilization device 130 and reducing unnecessary energy consumption.
Further, in one embodiment, and with continued reference to fig. 2, the detection device 120 of the air-cooled refrigerator 10 may further include a humidity sensor 123. The humidity sensor 123 may be disposed in the storage compartment 110, for example, and is configured to detect the humidity of the storage compartment 110. In a specific embodiment, the humidity sensor 123 may be integrated with the temperature sensor 121, and the temperature and humidity can be detected by the same temperature and humidity sensor.
Accordingly, in the sterilization method of the air-cooled refrigerator, the operation state parameter of the storage compartment 110 acquired in step S304 may further include humidity of the storage compartment 110. Furthermore, the starting condition of the sterilization device 130 in step S306 may further include that the humidity of the storage compartment 110 is greater than or equal to a preset humidity threshold. That is, in this case, it is necessary to simultaneously satisfy that the temperature of the storage compartment 110 is greater than or equal to the preset temperature threshold, the weight of the stored articles in the storage compartment 110 is greater than or equal to the preset weight threshold, and the humidity of the storage compartment 110 is greater than or equal to the preset humidity threshold, so as to activate the sterilization device 130 for sterilization. Since humidity is also an important factor affecting the deterioration of the articles, the higher the humidity is, the faster the deterioration of the articles is, and therefore, by increasing the judgment on whether the humidity of the storage compartment 110 meets the starting condition of the sterilizing device 130, the starting judgment of the sterilizing device 130 is more accurate and reasonable.
The preset temperature threshold, the preset weight threshold and the preset humidity threshold may be set according to the actual situation and the application requirement of the sterilization device 130 and the air-cooled refrigerator 10, which is not specifically limited in the present invention.
In one embodiment, before controlling the sterilization apparatus 130 to cyclically operate in the shutdown mode, the sterilization mode and the heating mode in a cyclically alternating manner in step S310 or step S308, the sterilization apparatus 130 may be further controlled to preheat in the heating mode for a specified time. Thereafter, step S310 or step S308 is performed. That is, after the sterilization apparatus 130 is activated, preheating is first performed to remove at least part of condensation, thereby improving the reliability of the subsequent sterilization apparatus 130 in the cycle operation.
In addition, if the refrigeration system is not operated for the first time after the air-cooled refrigerator 10 is powered on, the sterilization module may be turned off when the set sterilization stop condition is satisfied in the process of controlling the sterilization device 130 to cyclically operate in the shutdown mode, the sterilization mode, and the heating mode in a cyclically alternating manner in step S308.
One sterilization stop condition may be: the number of cycles of the sterilizer 130 is counted, and if the number of cycles of the sterilizer 130 reaches the target number threshold, the sterilizer 130 is turned off, the counted number of cycles is cleared, and the sterilizer 130 is waited to be turned on next time. Since the sterilizing device 130 is activated to generate the sterilizing material once per one cycle period, the number of cycles of the sterilizing device 130 should be equal to the number of activation times. And when the cycle number reaches the target number threshold, the sterilization target of the current refrigeration cycle is finished.
Another sterilization stop condition may be: the operation state of the refrigeration system of the air-cooled refrigerator 10 is detected, and if the operation state of the refrigeration system is off, the sterilization device 130 is turned off. Since the fan 140 is also stopped when the refrigeration system is turned off, the sterilizing device 130 is turned off following the stop of the fan 140.
The above two sterilization stop conditions may be used simultaneously, for example, after the number of cycles of the sterilization device 130 reaches the target number threshold, the refrigeration system is still running (i.e., the fan 140 is still running), and the sterilization device 130 is stopped by the number of times of activation; and if the number of cycles does not reach the target number threshold value and the cooling target is completed and the cooling system is shut down (i.e., the fan 140 is stopped), the sterilizing device 130 is turned off according to a signal that the cooling system is turned off (specifically, a signal that the fan 140 is turned off).
The aforementioned target number threshold may be preset or may be generated after dynamic modification. Preferably, the target frequency threshold is a target frequency threshold obtained by correcting a preset initial frequency threshold according to the weight of the stored articles in the storage compartment 110, so that the target frequency threshold increases as the weight of the stored articles in the storage compartment 110 increases. By adopting the target frequency threshold value dynamically corrected according to the weight of the stored articles in the storage compartment 110, the sufficient sterilization time can be further ensured, thereby ensuring the sterilization effect.
It will be understood by those skilled in the art that the sterilizing material generated by the sterilizing device may have an effect on the health of the human body if it escapes from the refrigerator or acts on the human body. Therefore, to avoid the sterilization process from affecting human health, in one embodiment, the opening and closing state of the door body of the storage compartment 110 is monitored during the process of starting the sterilization device 130 to operate in a preset manner in step S310 or step S308, and the operation and the closing of the sterilization device 130 are controlled according to the opening and closing state of the door body of the storage compartment 110. Specifically, the opening and closing state of the door body of the storage compartment 110 can be detected in real time; if the door body of the storage compartment 110 is in the open state, the sterilization device 130 is closed until the door body of the storage compartment 110 is in the closed state, and then the sterilization device 130 is started to operate in the preset mode. The operation and the closing of the sterilizing device 130 are controlled by the opening and closing state of the door body of the associated storage compartment 110, so that the sterilizing material caused by the fact that the sterilizing device 130 still works when the door body is opened is prevented from directly acting on the close human body and escaping from the refrigerator, and the influence on the human health is effectively avoided.
Accordingly, referring to fig. 2, the air-cooled refrigerator 10 may further include a door switch 160. The door switch 160 is disposed at a door of the storage compartment 110, connected to the controller 150 (specifically, the processor 152 of the controller 150), and configured to detect an open/close state of the door of the storage compartment 110. The door switch 160 may be, for example, a hall switch, a photoelectric switch, etc., and the present invention is not limited thereto.
In addition, as mentioned above, the sterilizing material generated by the sterilizing device 130 is spread by the airflow generated by the fan 140, so that, in order to ensure the sterilizing efficiency and effectiveness, the operation state of the fan 140 of the refrigeration system of the air-cooled refrigerator 10 can be monitored during the operation of the sterilizing device 130 in the preset manner in step S310 or step S308, and the operation and the shutdown of the sterilizing device 130 can be controlled according to the operation state of the fan 140. Specifically, the operating state of the fan 140 of the refrigeration system can be detected in real time; if the operation state of the blower 140 is off or failed, the sterilizing device 130 is turned off until the sterilizing device 130 is turned on next time. For example, if the rotational speed of the fan 140 is detected to be less than the set rotational speed threshold, the fan 140 may be considered to be malfunctioning. Further, after detecting the fan 140 failure, a failure flag may be transmitted back to the controller 150, and the controller 150 controls the corresponding execution unit to alarm.
In the above, various implementation manners of each step of the embodiments shown in fig. 3 and fig. 4 are introduced, and the implementation process of the sterilization method for the air-cooled refrigerator according to the present invention will be described in detail through specific embodiments.
Fig. 5 is a flow chart illustrating a sterilization method of an air-cooled refrigerator according to an embodiment of the present invention. The method is applied to the air-cooled refrigerator 10 described above. Referring to fig. 5, the sterilization method may include at least the following steps S502 to S514.
Step S502, after the refrigeration system of the air-cooled refrigerator 10 starts to operate each time, an indication signal indicating that the fan 140 of the refrigeration system operates stably is obtained.
In this step, the indication signal is determined by detecting the rotation speed of the fan 140, and when the rotation speed of the fan 140 reaches 990-1500rpm, it is determined that the fan 140 is stably operated.
Step S504 is to determine whether the refrigeration system is operated for the first time after the air-cooled refrigerator 10 is powered on. If yes, go to step S506. If not, go to step S508.
In this step, it is determined whether the refrigeration system is operated for the first time after the air-cooled refrigerator 10 is powered on by judging whether a flag bit indicating that the refrigeration system has completed the first refrigeration operation already exists at present. The generation and determination of the flag bits is not repeated as described above.
Step S506, the sterilization device 130 is controlled to preheat in the heating mode for a specified time, and then is cyclically operated in the shutdown mode, the sterilization mode and the heating mode cyclically alternating according to preset cycle parameters until the refrigeration system is turned off. Thereafter, the process returns to step S502 to wait for the next start of the refrigeration system.
In step S508, the temperature, humidity, and weight of the storage compartment 110 are obtained.
Step S510, determining whether the temperature, humidity and weight of the storage compartment 110 satisfy the start condition of the sterilizer 130. If yes, go to step S512. If not, the process returns to step S502 to wait for the next start of the refrigeration system.
In this embodiment, the start condition of the sterilization device 130 is that the temperature of the storage compartment 110 is greater than or equal to a preset temperature threshold, the humidity is greater than or equal to a preset humidity threshold, and the weight of the stored articles is greater than or equal to a preset weight threshold.
Step S512, the sterilization device 130 is controlled to preheat in the heating mode for a specified time, and then is cyclically operated in the shutdown mode, the sterilization mode and the heating mode cyclically alternating according to preset cycle parameters.
Step S514, during the circulation operation, counting the circulation times of the sterilization device 130 and detecting the operation state of the refrigeration system, and if the circulation times reaches the target time threshold or the operation state of the refrigeration system is off, turning off the sterilization device 130. Thereafter, the process returns to step S502 to wait for the next start of the refrigeration system.
In this embodiment, the preset temperature threshold, the preset weight threshold, the preset humidity threshold, and the target frequency threshold may be set according to the actual conditions and the application requirements of the sterilization device 130 and the air-cooled refrigerator 10. The cycle parameters preset in step S506 and step S512 are not repeated as described above.
In addition, in the circulating operation process of step S512, the opening and closing state of the door body of the storage compartment 110 is detected in real time. If the door body of the storage compartment 110 is in the open state, the sterilizing device 130 is closed until the door body of the storage compartment 110 is in the closed state, and then the sterilizing device 130 is continuously controlled to circularly operate in a shutdown mode, a sterilizing mode and a heating mode according to preset periodic parameters. Meanwhile, in the circulation operation process of step S512, the operation state of the fan 140 of the refrigeration system is also detected in real time. If the operation state of the fan 140 is shutdown or failure, the sterilization device 130 is turned off, and the process returns to step S502 to wait for the next start of the refrigeration system.
The embodiment realizes dynamic and reasonable control of the start of the sterilizing device 130, improves the utilization efficiency of the sterilizing device 130 while ensuring the sterilizing effect, reduces the influence on the health of users, and avoids unnecessary energy consumption.
According to any one or a combination of multiple optional embodiments, the embodiment of the present invention can achieve the following advantages:
according to the sterilization method of the air-cooled refrigerator, after the indication signal indicating the stable operation of the fan of the refrigeration system is obtained, the operation state parameters of the storage chamber are firstly obtained, and only after the operation state parameters of the storage chamber are judged to be in accordance with the starting conditions of the sterilization device, the sterilization device is started to operate in a preset mode. The sterilization method can dynamically and reasonably control the sterilization device to start according to the operating state parameters of the storage chamber, improves the utilization efficiency of the sterilization device while ensuring the sterilization effect, and solves the problems that the sterilization module of the refrigerator in the prior art is frequently started due to fixed starting conditions, the health of a user is influenced, and energy is wasted.
Furthermore, the sterilizing device is controlled to continuously operate in a preset mode until the refrigerating system is closed after the air-cooled refrigerator is powered on when the refrigerating system operates for the first time, so that the cleanliness of the inside of the storage chamber in the first refrigerating period after the air-cooled refrigerator is powered on is ensured, and the risk of deterioration and rot of stored articles caused by high temperature in the initial stage of power on is greatly reduced.
Thus, it should be appreciated by those skilled in the art that while a number of exemplary embodiments of the invention have been illustrated and described in detail herein, many other variations or modifications consistent with the principles of the invention may be directly determined or derived from the disclosure of the present invention without departing from the spirit and scope of the invention. Accordingly, the scope of the invention should be understood and interpreted to cover all such other variations or modifications.
Claims (10)
1. A sterilization method of an air-cooled refrigerator comprises a storage chamber, a detection device and a sterilization device, wherein the detection device is used for detecting the operating state parameters of the storage chamber; the sterilization method comprises the following steps:
after a refrigeration system of the air-cooled refrigerator starts to operate each time, acquiring an indication signal for indicating the stable operation of a fan of the refrigeration system;
acquiring running state parameters of the storage chamber;
judging whether the operating state parameters of the storage chamber meet the starting conditions of the sterilization device or not;
if yes, the sterilization device is started to operate in a preset mode.
2. The sterilization method according to claim 1, wherein before acquiring the operating state parameters of the storage chamber, the method further comprises:
judging whether the refrigeration system is operated for the first time after the air-cooled refrigerator is powered on;
if not, executing the step of acquiring the running state parameters of the storage chamber;
if so, starting the sterilization device to operate in a preset mode until the refrigeration system is closed.
3. The sterilization method according to claim 1 or 2, wherein the sterilization apparatus is controlled to operate in a sterilization mode to release a sterilization substance, a heating mode to generate heat, or a shutdown mode;
the starting of the sterilization device is operated in a preset mode, and the starting of the sterilization device comprises the following steps:
and controlling the sterilization device to circularly operate according to preset cycle parameters in a mode that the shutdown mode, the sterilization mode and the heating mode are circularly alternated, wherein the cycle parameters comprise respective time lengths of the sterilization device in the shutdown mode, the sterilization mode and the heating mode in the circulation cycle of the sterilization device.
4. The sterilization method according to claim 1, wherein the detection means includes a temperature sensor and a pressure sensor;
the running state parameters of the storage chamber comprise the temperature of the storage chamber and the weight of stored articles;
the starting conditions of the sterilization device comprise that the temperature of the storage chamber is greater than or equal to a preset temperature threshold value and the weight of the stored articles is greater than or equal to a preset weight threshold value.
5. The sterilization method according to claim 4, wherein the detection means further comprises a humidity sensor;
the operating state parameters of the storage chamber also comprise the humidity of the storage chamber;
the starting condition of the sterilization device further comprises that the humidity of the storage chamber is greater than or equal to a preset humidity threshold value.
6. The sterilization method according to claim 3, wherein before controlling the sterilization apparatus to cyclically operate in the shutdown mode, the sterilization mode, and the heating mode cyclically alternate, further comprising:
and controlling the sterilizing device to preheat for a designated time in the heating mode.
7. The sterilization method according to claim 3, wherein if the refrigeration system is not operated for the first time after the air-cooled refrigerator is powered on, after controlling the sterilization apparatus to cyclically operate in the shutdown mode, the sterilization mode and the heating mode in a cyclically alternating manner, further comprising:
counting the number of cycles of the sterilizing device and detecting the operating state of the refrigerating system;
and if the cycle number reaches a target number threshold or the operation state of the refrigeration system is closed, closing the sterilization device.
8. The sterilization method according to claim 1 or 2, wherein in starting the sterilization apparatus to operate in a preset manner, further comprising:
detecting the opening and closing state of a door body of the storage compartment;
and if the door body of the storage chamber is in an open state, closing the sterilization device until the door body of the storage chamber is in a closed state, and then starting the sterilization device to operate in the preset mode.
9. The sterilization method according to claim 1 or 2, wherein in starting the sterilization apparatus to operate in a preset manner, further comprising:
detecting the running state of a fan of the refrigeration system;
and if the running state of the fan is shutdown or failure, closing the sterilizing device.
10. An air-cooled refrigerator comprising:
the box body defines a storage chamber;
the refrigerating system comprises a fan and is used for generating and conveying refrigerating airflow for the storage compartment;
the detection device is used for detecting the running state parameters of the storage chamber;
a sterilizing device for releasing a sterilizing substance; and
a controller comprising a memory and a processor, wherein the memory has stored therein computer program code which, when executed by the processor, causes the controller to perform the method of sterilizing an air-cooled refrigerator according to any one of claims 1-9.
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