Ion generator sterilization control method and refrigerator

Abstract

The invention provides an ion generator sterilization control method and a refrigerator, and relates to the technical field of household appliances, and the ion generator sterilization control method comprises the steps that the temperature of a target chamber of the refrigerator is monitored to obtain the refrigerator temperature, and the refrigerator temperature is transmitted to a control panel; the control panel compares the refrigerator temperature with the normal temperature range of the refrigerator and judges whether the refrigerator temperature is normal or not; if the temperature of the refrigerator is normal, the environment temperature of the refrigerator is monitored, and the environment temperature is obtained and transmitted to the control panel; the control panel determines the refrigeration starting rate of the refrigerator according to the environment temperature; the running state of the refrigerator is judged through temperature monitoring, and the burning explosion risk caused by starting of the ion generator under the refrigerant leakage condition is avoided. And meanwhile, different from the constant control logic of the ion generator in the current product, the starting and running time of the ion generator is automatically matched according to the refrigeration starting rate, so that the sterilization efficiency is improved, and the problems that the refrigeration is not started, the ion generator does not run and the sterilization effect is poor at the low environment temperature can be effectively solved.

Description

Technical Field

[0001] The present application relates to the field of household appliance technology, and in particular to an ion generator sterilization control method and a refrigerator. Background Art

[0002] It is very important to sterilize the refrigerator. On the one hand, it can ensure food safety. Various foods are stored in the refrigerator, such as meat, vegetables, fruits, etc. In daily use, they are easily contaminated by various bacteria, such as Listeria and E. coli. These bacteria will accelerate the deterioration of food. If people eat contaminated food, they may experience symptoms of food poisoning such as vomiting and diarrhea.

[0003] On the other hand, it helps to extend the shelf life of food. Bacteria are one of the main factors for food spoilage. Sterilization can reduce the damage of bacteria to food, allowing food to be stored in the refrigerator for a longer time, thereby reducing food waste.

[0004] At present, the main sterilization technologies in refrigerators include photocatalysis, ion / ozone, deep ultraviolet and other technologies. Among these technologies, only ion / ozone technology can truly achieve full-space air and surface sterilization in refrigerators. Ion / ozone technology produces ions and ozone through high-voltage ionization of air, and kills bacteria through the oxidizing property of ozone and the charged property of ions.

[0005] In a refrigerator environment, since the refrigerant is a flammable and explosive gas, and the high voltage of the ion generator is prone to produce electric sparks, it is very easy for combustion and explosion to occur, causing personal safety and property loss. Summary of the invention

[0006] The embodiment of the present application provides an ion generator sterilization control method and a refrigerator. Through the design of control rules, the application risks of the ion generator are avoided while ensuring the sterilization effect. The problem that the ion generator produces functional components (ozone and negative ions) through high-voltage ionization of air, and high-voltage ionization produces electric sparks, which is very likely to cause combustion and explosion under the condition of refrigerant leakage is solved.

[0007] In a first aspect, an embodiment of the present application provides an ion generator sterilization control method, comprising:

[0008] Monitor the target compartment temperature of the refrigerator, obtain the refrigerator temperature, and transmit it to the control board;

[0009] The control panel compares the refrigerator temperature with the normal temperature range of the refrigerator to determine whether the refrigerator temperature is normal;

[0010] If the refrigerator temperature is normal, monitor the ambient temperature of the refrigerator, obtain the ambient temperature, and transmit it to the control board;

[0011] The control panel determines the refrigerator refrigeration start-up rate according to the ambient temperature.

[0012] By judging the operating status of the refrigerator and then controlling the operation of the ion generator, the risk of explosion caused by refrigerant leakage can be effectively avoided. At the same time, the refrigerator automatically matches the operation of the ion generator according to the refrigeration start-up rate, which can effectively solve the problem of refrigeration not starting, ion generator not running, and poor sterilization effect under low ambient temperature.

[0013] In a feasible implementation, the control panel determines the refrigerator refrigeration start-up rate according to the ambient temperature, specifically including:

[0014] The control panel determines the temperature range of the ambient temperature;

[0015] Each operation time and the accumulated operation time of the ion generator are set according to the temperature range.

[0016] In a feasible implementation, when the ambient temperature is within the first temperature range, the refrigerator is at a high refrigeration start-up rate, and the control panel controls the ion generator to operate for each time for t1, and the accumulated operating time is T1;

[0017] When the cumulative running time T1 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

[0018] When the actual detected ambient temperature of the refrigerator is 35°C, the ambient temperature is in the first temperature range, the refrigerator is in a high refrigeration start-up rate, the control board controls the ion generator to run during the refrigeration start-up process, each ion generator running time is t1, and the cumulative running time is T1.

[0019] In a feasible implementation, when the ambient temperature is in the second temperature range, the refrigerator is at a higher refrigeration start-up rate, and the control panel controls the ion generator to operate for each time for t2, and the accumulated operating time is T2;

[0020] When the cumulative running time T2 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

[0021] When the actual detected ambient temperature of the refrigerator is 30°C, the ambient temperature is in the second temperature range, and the refrigerator is at a higher refrigeration start-up rate. The control board controls the ion generator to run during the refrigeration start-up process. Each ion generator running time is t2, and the cumulative running time is T2.

[0022] In a feasible implementation, when the ambient temperature is in the third temperature range, the refrigerator is in a low refrigeration start-up rate, and the control panel controls the ion generator to run for each time for t3, and the accumulated running time is T3;

[0023] When the cumulative running time T3 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

[0024] When the actual detected ambient temperature of the refrigerator is 22°C, the ambient temperature is in the third temperature range, and the refrigerator is in a low refrigeration start-up rate. The control board controls the ion generator to run during the refrigeration start-up process. Each ion generator running time is t3, and the cumulative running time is T3.

[0025] In a feasible implementation, T1=T2=T3.

[0026] In a feasible implementation, when determining whether the refrigerator temperature is normal, if the refrigerator temperature is abnormal, the ion generator is turned off or remains off, and the refrigerator target compartment temperature is re-detected to determine whether the refrigerator temperature is normal.

[0027] When judging whether the refrigerator temperature is normal, if the refrigerator temperature is abnormal, the ion generator is turned off or remains off, and the refrigerator target compartment temperature is re-detected to judge whether the refrigerator temperature is normal.

[0028] When the refrigerator is running for the first time, the temperature of the target compartment of the refrigerator is monitored by electronic components such as temperature sensors to obtain the refrigerator temperature. At this time, the ion generator is in a closed state, and the control board compares the refrigerator temperature with the normal temperature range of the refrigerator. When the refrigerator temperature is abnormal, the control board keeps the ion generator in a closed state;

[0029] When the refrigerator is in operation, when the cumulative operating time of the ion generator reaches T1, or T2, or T3, the temperature of the target compartment of the refrigerator is monitored again through electronic components such as temperature sensors to obtain the refrigerator temperature. At this time, the ion generator is in working state, and the control board compares the refrigerator temperature with the normal temperature range of the refrigerator. When the refrigerator temperature is abnormal, the control board stops the ion generator from working, and monitors the temperature of the target compartment of the refrigerator again through electronic components such as temperature sensors to determine whether the refrigerator temperature is normal.

[0030] In a feasible implementation, when the abnormal temperature of the refrigerator is detected for N consecutive times, the control panel controls the alarm device to sound an alarm, where N is a first threshold.

[0031] Whenever the control panel determines that the refrigerator temperature is abnormal, the control panel records the number of abnormal determinations, and re-acquires the latest refrigerator temperature to determine whether the refrigerator temperature is normal. When the control panel determines that the refrigerator temperature is normal, the recorded number of abnormal determinations is cleared; when the recorded number of abnormal determinations reaches a preset first threshold, the control panel controls the alarm device to sound an alarm.

[0032] In a second aspect, an embodiment of the present application provides a refrigerator, including a controller and a first temperature sensor, a second temperature sensor and an ion generating device electrically connected to the controller respectively;

[0033] The controller, the first temperature sensor, the second temperature sensor, and the ion generating device are configured to execute the above-mentioned ion generator sterilization control method.

[0034] In a feasible implementation, the ion generating device includes a negative ion generating and releasing device, a positive and negative ion generating and releasing device, a plasma generating and releasing device, and an ozone generating and releasing device.

[0035] In a feasible implementation, the peak value of the ozone concentration generated by the ion generating device is A, 0.05ppm≤A≤0.15ppm.

[0036] The embodiment of the present application provides an ion generator sterilization control method and a refrigerator, which monitors the temperature of a target compartment of a refrigerator, obtains the refrigerator temperature, and transmits it to a control board; the control board compares the refrigerator temperature with a normal temperature range of the refrigerator to determine whether the refrigerator temperature is normal; if the refrigerator temperature is normal, monitors the ambient temperature of the refrigerator, obtains the ambient temperature, and transmits it to the control board; the control board determines the refrigerator refrigeration start-up rate according to the ambient temperature;

[0037] This application uses temperature monitoring to determine the operating status of the refrigerator and avoid the risk of explosion caused by the opening of the ion generator under the condition of refrigerant leakage. At the same time, it is different from the unchanging control logic of the ion generator in the current products (the control rules are the same under different ambient temperatures). It automatically matches the ion generator opening time according to the refrigeration opening rate to improve the sterilization efficiency. It can effectively solve the problem of poor sterilization effect when the refrigeration is not turned on and the ion generator is not running under low ambient temperature. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 It is a structural schematic diagram of the ion generator sterilization control method and refrigerator provided by the present application;

[0039] Figure 2 It is a structural schematic diagram of the refrigerator provided by the present application;

[0040] Figure 3 It is the structural block diagram of a refrigerator.

[0041] Description of reference numerals:

[0042] 10 - controller; 20 - first temperature sensor; 30 - second temperature sensor; 40 - ion generating device. DETAILED DESCRIPTION

[0043] In order to enable those skilled in the art to better understand the technical solutions in the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in the field without creative work should fall within the scope of protection of the present application.

[0044] There are two main reasons why refrigerators need to be sterilized. One is for health. The environment inside the refrigerator is humid and the temperature is suitable, which is a hotbed for many bacteria such as Salmonella and Shigella. Once these bacteria contaminate food and are ingested by the human body, they may cause diseases such as intestinal infections, abdominal pain, diarrhea and other symptoms. The second is to keep food fresh. Bacteria will decompose the nutrients in food and make the food spoil. For example, it will make meat stink faster and vegetables and fruits soft and rot faster. Sterilization can slow down the rate of food spoilage and better maintain the quality and nutrition of food.

[0045] At present, the main sterilization technologies in refrigerators include photocatalysis, ion / ozone, deep ultraviolet and other technologies. Among these technologies, only ion / ozone technology can truly achieve full-space air and surface sterilization in refrigerators. Ion / ozone technology produces ions and ozone through high-voltage ionization of air, and kills bacteria through the oxidizing property of ozone and the charge of ions. In a refrigerator environment, since the refrigerant is a flammable and explosive gas, and the high voltage of the ion generator is prone to produce electric sparks, it is very easy to cause combustion and explosion, causing personal safety and property losses.

[0046] This application determines whether the refrigerator is in normal condition by monitoring the operating temperature of the refrigerator, controls the start and stop of the ion generator while ensuring the normal operation of the refrigerator, and avoids the operation of the ion generator in a high humidity environment, further reducing the risk of combustion and explosion.

[0047] The ion generator sterilization control method and the specific structure of the refrigerator provided in the present application are described in detail below in conjunction with the accompanying drawings.

[0048] Reference Figure 1 As shown, the embodiment of the present application provides an ion generator sterilization control method, including:

[0049] S1: Monitor the target compartment temperature of the refrigerator and obtain the refrigerator temperature.

[0050] The temperature of the target compartment of the refrigerator can be monitored by electronic components such as temperature sensors, the refrigerator temperature can be obtained, and transmitted to the control board.

[0051] S2: Determine whether the refrigerator temperature is normal.

[0052] The control panel stores the normal temperature range of the refrigerator, which may be 3-15°. The control panel compares the refrigerator temperature with the normal temperature range of the refrigerator to determine whether the refrigerator temperature is normal.

[0053] For example, when the temperature of the target refrigerator compartment is monitored to be 10°, that is, the refrigerator temperature is 10°, and the normal temperature range of the refrigerator is 3-15°, then the refrigerator temperature is determined to be normal; when the temperature of the target refrigerator compartment is monitored to be 20°, that is, the refrigerator temperature is 20°, and the normal temperature range of the refrigerator is 3-15°, then the refrigerator temperature is determined to be abnormal.

[0054] S3: Monitor the ambient temperature of the refrigerator to obtain the ambient temperature.

[0055] When the temperature of the refrigerator is normal, the ambient temperature of the refrigerator can be monitored by electronic components such as temperature sensors, the ambient temperature can be obtained, and transmitted to the control board.

[0056] S4: Determine the refrigerator refrigeration start-up rate according to the ambient temperature.

[0057] The control panel determines the refrigerator refrigeration start rate according to the ambient temperature, specifically including:

[0058] The control panel determines the temperature range of the ambient temperature;

[0059] Each operation time and the accumulated operation time of the ion generator are set according to the temperature range.

[0060] When the ambient temperature is within the first temperature range, the control panel controls the ion generator to run for each time for t1, and the accumulated running time is T1;

[0061] When the ambient temperature is in the first temperature range and the refrigerator is in a high refrigeration start-up rate, the control board controls the ion generator to run during the refrigeration start-up process. Each ion generator running time is t1, and the cumulative running time is T1.

[0062] When the cumulative running time T1 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

[0063] When the ambient temperature is in the second temperature range, the control panel controls the ion generator to run for each time for t2, and the accumulated running time is T2;

[0064] When the ambient temperature is in the second temperature range, the refrigerator is at a higher refrigeration start-up rate, and the control board controls the ion generator to run during the refrigeration start-up process. Each ion generator runs for a time of t2, and the cumulative running time is T2;

[0065] When the cumulative running time T2 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

[0066] When the ambient temperature is in the third temperature range, the control panel controls the ion generator to run for each time for t3, and the accumulated running time is T3;

[0067] When the ambient temperature is in the third temperature range, the refrigerator is at a low refrigeration start-up rate, and the control board controls the ion generator to run during the refrigeration start-up process. Each ion generator runs for a time of t3, and the cumulative running time is T3;

[0068] When the cumulative running time T3 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

[0069] In one embodiment, T1=T2=T3, that is, different refrigerator refrigeration start-up rates result in different operating times of the ion generator each time, while the accumulated operating times are the same.

[0070] Specifically, the second temperature range is 32-38°C, the third temperature range is 25-32°C, and the third temperature range is 0-25°C.

[0071] When the actual detected ambient temperature of the refrigerator is 35°C, the ambient temperature is in the first temperature range, the refrigerator is in a high refrigeration start-up rate, the control board controls the ion generator to run during the refrigeration start-up process, each ion generator running time is t1, and the cumulative running time is T1.

[0072] When the actual detected ambient temperature of the refrigerator is 30°C, the ambient temperature is in the second temperature range, and the refrigerator is at a higher refrigeration start-up rate. The control board controls the ion generator to run during the refrigeration start-up process. Each ion generator running time is t2, and the cumulative running time is T2.

[0073] When the actual detected ambient temperature of the refrigerator is 22°C, the ambient temperature is in the third temperature range, and the refrigerator is in a low refrigeration start-up rate. The control board controls the ion generator to run during the refrigeration start-up process. Each ion generator running time is t3, and the cumulative running time is T3.

[0074] S5: If the refrigerator temperature is abnormal, the ion generator turns off or remains off.

[0075] When judging whether the refrigerator temperature is normal, if the refrigerator temperature is abnormal, the ion generator is turned off or remains off, and the refrigerator target compartment temperature is re-detected to judge whether the refrigerator temperature is normal.

[0076] When the refrigerator is running for the first time, the temperature of the target compartment of the refrigerator is monitored by electronic components such as temperature sensors to obtain the refrigerator temperature. At this time, the ion generator is in a closed state, and the control board compares the refrigerator temperature with the normal temperature range of the refrigerator. When the refrigerator temperature is abnormal, the control board keeps the ion generator in a closed state;

[0077] When the refrigerator is in operation, when the cumulative operating time of the ion generator reaches T1, or T2, or T3, the temperature of the target compartment of the refrigerator is monitored again through electronic components such as temperature sensors to obtain the refrigerator temperature. At this time, the ion generator is in working state, and the control board compares the refrigerator temperature with the normal temperature range of the refrigerator. When the refrigerator temperature is abnormal, the control board stops the ion generator from working, and monitors the temperature of the target compartment of the refrigerator again through electronic components such as temperature sensors to determine whether the refrigerator temperature is normal.

[0078] Furthermore, whenever the control panel determines that the refrigerator temperature is abnormal, the control panel records the number of abnormal determinations, and reacquires the latest refrigerator temperature to determine whether the refrigerator temperature is normal. When the control panel determines that the refrigerator temperature is normal, the recorded number of abnormal determinations is cleared; when the recorded number of abnormal determinations reaches a preset first threshold, the control panel controls the alarm device to sound an alarm.

[0079] For example, the first threshold value is 3 times, and the normal temperature range of the refrigerator is 3-15°. When the refrigerator temperature obtained by the control panel for the first time is 20°, the refrigerator temperature is determined to be abnormal, and the control panel records one abnormal determination; when the refrigerator temperature obtained by the control panel for the second time is 18°, the refrigerator temperature is determined to be abnormal, and the control panel records two abnormal determinations; when the refrigerator temperature obtained by the control panel for the third time is 16°, the refrigerator temperature is determined to be abnormal, and the control panel records three abnormal determinations. When the number of abnormal determinations recorded by the control panel reaches the preset first threshold, the control panel controls the alarm device to alarm; when the refrigerator temperature obtained by the control panel for the third time is 15°, the refrigerator temperature is determined to be normal, and the number of abnormal determinations recorded by the control panel is reset to zero, and the control panel obtains the ambient temperature and executes subsequent steps.

[0080] The ion generator sterilization control method provided in this application determines the operating status of the refrigerator through temperature monitoring, and avoids the risk of explosion caused by the opening of the ion generator under the condition of refrigerant leakage. At the same time, it is different from the unchanging control logic of the ion generator in the current products (the control rules are the same under different ambient temperatures). It automatically matches the ion generator opening time according to the refrigeration start-up rate to improve the sterilization efficiency, and effectively solves the problem that the refrigeration does not start at low ambient temperature, the ion generator does not run, and the sterilization effect is poor.

[0081] Reference Figure 2 and Figure 3As shown, the present application also provides a refrigerator, the refrigerator comprising a controller 10 and a first temperature sensor 20, a second temperature sensor 30 and an ion generating device 40 electrically connected to the controller 10 respectively;

[0082] The first temperature sensor 20 and the second temperature sensor 30 are both conventional temperature sensors, and the ion generating device 40 includes but is not limited to a negative ion generating and releasing device, a positive and negative ion generating and releasing device, a plasma generating and releasing device, and an ozone generating and releasing device.

[0083] The controller, the first temperature sensor, the second temperature sensor, and the ion generating device are configured as the above-mentioned ion generator sterilization control method.

[0084] The controller is equipped with safety assessment procedures and sterilization control procedures;

[0085] The safety assessment procedure includes: the refrigerator is refrigerated, and the first temperature sensor automatically monitors the temperature change in the room. After the target room receives the refrigeration instruction, the controller obtains the refrigerator temperature monitored by the first temperature sensor and evaluates it. If the refrigerator temperature is abnormal, it is fed back to the control system, and the control system controls the sterilization program not to start. If the refrigerator temperature is normal, it is fed back to the control system, and the control system controls the sterilization program to start.

[0086] The sterilization control program includes: the second temperature sensor automatically detects the ambient temperature and feeds back to the control board, the control board automatically matches the refrigerator refrigeration start-up rate under the ambient temperature, and automatically matches the module operation rules according to the refrigeration start-up rate;

[0087] If the actual detected ambient temperature of the refrigerator is between 32-38°C, the ambient temperature is in the first temperature range, the refrigerator is in a high refrigeration start-up rate, the control board controls the ion generator to run during the refrigeration start-up process, each ion generator running time is t1, and the cumulative running time is T1;

[0088] If the actual detected ambient temperature of the refrigerator is between 25-32°C, the ambient temperature is in the second temperature range, and the refrigerator is at a higher refrigeration start-up rate, then the control board controls the ion generator to run during the refrigeration start-up process, and each ion generator runs for a time of t2, and the cumulative running time is T2;

[0089] If the actual detected ambient temperature of the refrigerator is between 0-25°C, the ambient temperature is in the third temperature range, and the refrigerator is at a low refrigeration start-up rate. The control board controls the ion generator to run during the refrigeration start-up process. Each ion generator running time is t3, and the cumulative running time is T3.

[0090] In some embodiments, the peak ozone concentration generated by the ion generator is A, 0.05ppm≤A≤0.15ppm;

[0091] Preferably, the peak value of ozone concentration should be less than 0.1 ppm, that is, A<0.1 ppm.

[0092] It should be noted here that the numerical values ​​and numerical ranges involved in the embodiments of the present application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0093] It is easy to understand that those skilled in the art can combine, split, reorganize, etc. the embodiments of the present application to obtain other embodiments based on the several embodiments provided in the present application, and these embodiments do not exceed the protection scope of the present application.

[0094] The above specific implementation methods further explain in detail the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above are only specific implementation methods of the embodiments of the present application and are not used to limit the protection scope of the embodiments of the present application. Any modifications, equivalent substitutions, improvements, etc. made on the basis of the technical solutions of the embodiments of the present application should be included in the protection scope of the embodiments of the present application.

Claims

1. A sterilization control method for an ion generator, characterized in that: include; Monitor the target compartment temperature of the refrigerator, obtain the refrigerator temperature, and transmit it to the control board; The control panel compares the refrigerator temperature with the normal temperature range of the refrigerator to determine whether the refrigerator temperature is normal; If the refrigerator temperature is normal, monitor the ambient temperature of the refrigerator, obtain the ambient temperature, and transmit it to the control board; The control panel determines the refrigerator refrigeration start-up rate according to the ambient temperature.

2. The ion generator sterilization control method according to claim 1, characterized in that: The control panel determines the refrigerator refrigeration start-up rate according to the ambient temperature, specifically including: The control panel determines the temperature range of the ambient temperature; Each operation time and the accumulated operation time of the ion generator are set according to the temperature range.

3. The ion generator sterilization control method according to claim 2, characterized in that: When the ambient temperature is within the first temperature range, the control panel controls the ion generator to run for each time for t1, and the accumulated running time is T1; When the cumulative running time T1 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

4. The ion generator sterilization control method according to claim 2, characterized in that: When the ambient temperature is in the second temperature range, the control panel controls the ion generator to run for each time for t2, and the accumulated running time is T2; When the cumulative running time T2 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

5. The ion generator sterilization control method according to claim 2, characterized in that: When the ambient temperature is in the third temperature range, the control panel controls the ion generator to run for each time for t3, and the accumulated running time is T3; When the cumulative running time T3 is reached, the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

6. The ion generator sterilization control method according to any one of claims 1 to 5, characterized in that: When judging whether the refrigerator temperature is normal, if the refrigerator temperature is abnormal, the ion generator is turned off or remains off, and the refrigerator target compartment temperature is re-detected to judge whether the refrigerator temperature is normal.

7. The ion generator sterilization control method according to claim 1, characterized in that: When the abnormal temperature of the refrigerator is detected for N consecutive times, the control panel controls the alarm device to alarm, and N is a first threshold.

8. A refrigerator, characterized in that: It comprises a controller (10), and a first temperature sensor (20), a second temperature sensor (30) and an ion generating device (40) which are electrically connected to the controller (10) respectively; The controller, the first temperature sensor, the second temperature sensor, and the ion generating device are configured to execute the ion generator sterilization control method according to any one of claims 1 to 7.

9. The refrigerator according to claim 8, characterized in that: The ion generating device comprises a negative ion generating and releasing device, a positive and negative ion generating and releasing device, a plasma generating and releasing device and an ozone generating and releasing device.

10. The refrigerator according to claim 8, characterized in that: The peak value of ozone concentration generated by the ion generator is A, 0.05ppm≤A≤0.15ppm.

Images