Ion generator sterilization control method and refrigerator

Abstract

The application provides an ion generator sterilization control method and a refrigerator, and relates to the technical field of household appliances. The ion generator sterilization control method comprises the following steps: monitoring the temperature of a target chamber of the refrigerator to obtain a refrigerator temperature and transmitting the refrigerator temperature to a control panel; comparing 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, monitoring the ambient temperature of the refrigerator to obtain an ambient temperature and transmitting the ambient temperature to the control panel; and determining the refrigeration startup probability of the refrigerator according to the ambient temperature. The application determines the operating state of the refrigerator through temperature monitoring, and avoids the risk of combustion and explosion caused by the opening of the ion generator under the condition of refrigerant leakage. At the same time, the application is different from the fixed control logic of the ion generator in the current product, and automatically matches the opening and operating time of the ion generator according to the refrigeration startup probability, so that the sterilization efficiency is improved, and the problems of no refrigeration startup and no operation of the ion generator under low ambient temperature and poor sterilization effect can be effectively solved.

Description

Technical Field

[0001] This application relates to the field of home appliance technology, and in particular to an ion generator sterilization control method and a refrigerator. Background Technology

[0002] Refrigerator sterilization is very important. On one hand, it ensures food safety. Refrigerators store various foods, such as meat, vegetables, and fruits, which are easily contaminated by bacteria like Listeria and E. coli during daily use. These bacteria accelerate food spoilage, and if people consume contaminated food, they may experience food poisoning symptoms such as vomiting and diarrhea.

[0003] On the other hand, it helps extend the shelf life of food. Bacteria are one of the main factors causing food spoilage. By sterilizing, the damage caused by bacteria can be reduced, allowing food to be stored in the refrigerator longer, thereby reducing food waste.

[0004] Currently, the main sterilization technologies used in refrigerators include photocatalysis, ion / ozone, and deep ultraviolet light. Among these technologies, only ion / ozone technology can truly achieve sterilization of the entire refrigerator's air and surfaces. Ion / ozone technology generates ions and ozone by ionizing air with high voltage. The oxidizing properties of ozone and the charged properties of ions kill bacteria.

[0005] In a refrigerator environment, because the refrigerant is a flammable and explosive gas, and the high voltage of the ion generator can easily generate electric sparks, a combustion and explosion situation can easily occur, causing personal injury and property damage. Summary of the Invention

[0006] This application provides an ion generator sterilization control method and a refrigerator. Through the design of control rules, the application risks of ion generators are avoided while ensuring the sterilization effect. It solves the problem that ion generators generate functional components (ozone and negative ions) by ionizing air with high voltage, but the high voltage ionization generates electric sparks, which can easily lead to combustion and explosion under the condition of refrigerant leakage.

[0007] In a first aspect, embodiments of this application provide a method for sterilization control of an ion generator, including:

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

[0009] The control board compares the refrigerator temperature with the refrigerator's normal temperature range to determine whether the refrigerator temperature is normal.

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

[0011] The control board determines the refrigerator's cooling operation rate based on the ambient temperature.

[0012] By judging the running state of the refrigerator, and then controlling the running of the ion generator, the risk of combustion and explosion caused by refrigerant leakage can be effectively avoided. At the same time, the refrigerator automatically matches the running of the ion generator according to the refrigeration start-up rate, which can effectively solve the problem of poor sterilization effect caused by low ring temperature, no refrigeration start-up, and no running of the ion generator

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

[0014] The control panel judges the temperature range in which the ambient temperature is located.

[0015] According to the temperature range, the running time of the ion generator each time and the cumulative running time are set.

[0016] In a feasible implementation manner, when the ambient temperature is in the first temperature range, the refrigerator is in a high refrigeration start-up rate, the control panel controls the running time of the ion generator each time to be t1, and the cumulative running time to be T1.

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

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

[0019] In a feasible implementation manner, when the ambient temperature is in the second temperature range, the refrigerator is in a higher refrigeration start-up rate, the control panel controls the running time of the ion generator each time to be t2, and the cumulative running time to be T2.

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

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

[0022] In a feasible implementation manner, when the ambient temperature is in the third temperature range, the refrigerator is in a low refrigeration start-up rate, the control panel controls the running time of the ion generator each time to be t3, and the cumulative running time to be T3.

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

[0024] When the actual detected ambient temperature of the refrigerator is 22℃, the ambient temperature is in the third temperature range, the refrigerator is in a low refrigeration startup probability, and the control panel controls the ion generator to run during the refrigeration startup process, and the running time of the ion generator is t3 each time, and the cumulative running time is T3.

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

[0026] In a feasible implementation, when it is determined whether the temperature of the refrigerator is normal, if the temperature of the refrigerator is not normal, the ion generator is turned off or kept in an off state, the target compartment temperature of the refrigerator is detected again, and it is determined whether the temperature of the refrigerator is normal.

[0027] When it is determined whether the temperature of the refrigerator is normal, if the temperature of the refrigerator is not normal, the ion generator is turned off or kept in an off state, the target compartment temperature of the refrigerator is detected again, and it is determined whether the temperature of the refrigerator is normal.

[0028] When the refrigerator is started for the first time, the temperature of the refrigerator is obtained by monitoring the temperature of the target compartment of the refrigerator through an electronic element such as a temperature sensor, at this time, the ion generator is in an off state, the control panel compares the temperature of the refrigerator with a normal temperature range of the refrigerator, and when the temperature of the refrigerator is not normal, the control panel keeps the ion generator in an off state.

[0029] When the refrigerator is running, when the cumulative running time of the ion generator reaches T1, or T2, or T3, the temperature of the refrigerator is obtained by monitoring the temperature of the target compartment of the refrigerator through an electronic element such as a temperature sensor again, at this time, the ion generator is in a working state, the control panel compares the temperature of the refrigerator with a normal temperature range of the refrigerator, and when the temperature of the refrigerator is not normal, the control panel stops the ion generator from working, and the temperature of the refrigerator is monitored again through the electronic element such as the temperature sensor to determine whether the temperature of the refrigerator is normal.

[0030] In a feasible implementation, when the temperature of the refrigerator is detected to be not normal for N consecutive times, the control panel controls an alarm device to alarm, and N is a first threshold value.

[0031] Each time the control panel determines that the temperature of the refrigerator is not normal, the control panel records the number of times of determination of abnormality, and obtains the latest temperature of the refrigerator again to determine whether the temperature of the refrigerator is normal. When the control panel determines that the temperature of the refrigerator is normal, the recorded number of times of determination of abnormality is cleared; and when the number of times of determination of abnormality recorded by the control panel reaches a preset first threshold value, the control panel controls the alarm device to alarm.

[0032] In a second aspect, the embodiments of the present application provide a refrigerator, comprising a controller, and a first temperature sensor, a second temperature sensor and an ion generator device electrically connected to the controller respectively;

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

[0034] In a feasible implementation, the ion generator device comprises a negative ion generator, a positive and negative ion generator, a plasma generator and an ozone generator.

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

[0036] The ion generator sterilization control method and the refrigerator provided by the embodiments of the present application monitor the temperature of a target chamber of the refrigerator to obtain a refrigerator temperature, and transmit the refrigerator temperature to a control panel; the control panel 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, the control panel monitors the ambient temperature of the refrigerator to obtain an ambient temperature, and transmits the ambient temperature to the control panel; and the control panel determines a refrigeration startup probability of the refrigerator according to the ambient temperature.

[0037] The present application determines the running state of the refrigerator through temperature monitoring, and avoids the risk of combustion and explosion caused by the opening of the ion generator under the condition of refrigerant leakage. At the same time, unlike the fixed control logic of the ion generator in the current products (the control rules are the same under different ambient temperatures), the present application automatically matches the opening and running time of the ion generator according to the refrigeration startup probability, so as to improve the sterilization efficiency and effectively solve the problem of poor sterilization effect caused by the non-operation of the ion generator under the condition of low ambient temperature and non-startup of the refrigerator. BRIEF DESCRIPTION OF DRAWINGS

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

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

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

[0041] MARKED FOR EXPLANATION:

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

[0043] In order for 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 in the following with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only some of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative labor should fall within the scope of protection of the present application.

[0044] There are mainly two reasons for the refrigerator to need to remove bacteria. One is for health. The environment in the refrigerator is humid and the temperature is suitable, which is a breeding ground for many bacteria such as Salmonella and Shigella. After these bacteria contaminate food, once ingested by the human body, they can cause diseases such as intestinal infection, and symptoms such as abdominal pain and diarrhea. The second is for food preservation. Bacteria can decompose the nutritional components in food, causing food to deteriorate. For example, it can make meat smell faster, and vegetables and fruits soften faster. Removing bacteria can slow down the deterioration of food and better maintain the quality and nutrition of food.

[0045] Current main refrigerator bacteria removal technologies include photocatalysis, ion / ozone, deep ultraviolet, etc., and among these technologies, only ion / ozone technology can truly achieve air and surface bacteria removal in the whole space of the refrigerator. Ion / ozone technology generates ions and ozone by ionizing air with high voltage, and achieves bacterial killing through the oxidizing property of ozone and the electrification of ions. In the refrigerator environment, since the refrigerant is a flammable and explosive gas, and the ion generator is prone to produce electric sparks under high voltage, it is extremely easy to cause combustion and explosion, causing personal safety and property loss.

[0046] The present application determines whether the refrigerator state is normal by monitoring the refrigerator operating temperature, controls the start and stop of the ion generator under the premise of ensuring the normal operation of the refrigerator, and further reduces the risk of combustion and explosion by avoiding the operation of the ion generator in a high-humidity environment.

[0047] The specific structure of the ion generator bacteria removal control method and the refrigerator provided by the present application will be described in detail below with reference to the accompanying drawings.

[0048] Referring to Figure 1 The embodiments of the present application provide an ion generator bacteria removal control method, which comprises;

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

[0050] The temperature of the target compartment of the refrigerator can be monitored by a temperature sensor or other electronic components to obtain the temperature of the refrigerator and transmitted to the control panel.

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

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

[0053] For example, when the temperature of the target chamber of the refrigerator is monitored to be 10°, that is, the temperature of the refrigerator is 10°, and the normal temperature range of the refrigerator is 3-15°, it is determined that the temperature of the refrigerator is normal; when the temperature of the target chamber of the refrigerator is monitored to be 20°, that is, the temperature of the refrigerator is 20°, and the normal temperature range of the refrigerator is 3-15°, it is determined that the temperature of the refrigerator is not normal.

[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 an electronic element such as a temperature sensor to obtain the ambient temperature, and transmitted to the control board.

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

[0057] The control board determines the refrigeration start-up rate of the refrigerator according to the ambient temperature, specifically including:

[0058] The control board determines the temperature range in which the ambient temperature is located.

[0059] According to the temperature range, the running time of the ion generator each time and the cumulative running time are set.

[0060] When the ambient temperature is in a first temperature range, the control board controls the running time of the ion generator each time to be t1, and the cumulative running time to be T1.

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

[0062] When the cumulative running time T1 is reached, the temperature of the target chamber of the refrigerator is detected again, and whether the temperature of the refrigerator is normal is determined.

[0063] When the ambient temperature is in a second temperature range, the control board controls the running time of the ion generator each time to be t2, and the cumulative running time to be T2.

[0064] When the ambient temperature is in the second temperature range, the refrigerator is in a higher refrigeration start-up rate, and then the control board controls the ion generator to run during the refrigeration start-up process, the running time of the ion generator each time is 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, and whether the refrigerator temperature is normal is judged.

[0066] When the ambient temperature is in the third temperature range, the control panel controls the running time of the ion generator each time to be t3, and the cumulative running time to be T3.

[0067] When the ambient temperature is in the third temperature range and the refrigerator is in a low refrigeration startup rate, the control panel controls the ion generator to run during the refrigeration startup, the running time of the ion generator each time is 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, and whether the refrigerator temperature is normal is judged.

[0069] In an embodiment, T1=T2=T3, that is, the refrigeration startup rates of different refrigerators are different, and the running time of the ion generator each time is different, and the cumulative running time is the same.

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

[0071] When the actual detected ambient temperature of the refrigerator is 35℃, the ambient temperature is in the first temperature range, the refrigerator is in a high refrigeration startup rate, the control panel controls the ion generator to run during the refrigeration startup, the running time of the ion generator each time is t1, and the cumulative running time is T1.

[0072] When the actual detected ambient temperature of the refrigerator is 30℃, the ambient temperature is in the second temperature range, the refrigerator is in a relatively high refrigeration startup rate, the control panel controls the ion generator to run during the refrigeration startup, the running time of the ion generator each time is t2, and the cumulative running time is T2.

[0073] When the actual detected ambient temperature of the refrigerator is 22℃, the ambient temperature is in the third temperature range, the refrigerator is in a low refrigeration startup rate, the control panel controls the ion generator to run during the refrigeration startup, the running time of the ion generator each time is t3, and the cumulative running time is T3.

[0074] S5: If the refrigerator temperature is not normal, the ion generator is turned off or kept in the off state.

[0075] When judging whether the refrigerator temperature is normal, if the refrigerator temperature is not normal, the ion generator is turned off or kept in the off state, the target compartment temperature of the refrigerator is detected again, and whether the refrigerator temperature is normal is judged.

[0076] When the refrigerator is first operated, the temperature of the target compartment of the refrigerator is monitored by an electronic element such as a temperature sensor, and the refrigerator temperature is obtained. At this time, the ion generator is in a closed state, and the control panel compares the refrigerator temperature with a normal temperature range of the refrigerator. When the refrigerator temperature is abnormal, the control panel keeps the ion generator in the closed state.

[0077] When the refrigerator is operated, 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 by an electronic element such as a temperature sensor, and the refrigerator temperature is obtained. At this time, the ion generator is in a working state, and the control panel compares the refrigerator temperature with a normal temperature range of the refrigerator. When the refrigerator temperature is abnormal, the control panel stops the ion generator from working, and the temperature of the target compartment of the refrigerator is monitored again by an electronic element such as a temperature sensor to determine whether the refrigerator temperature is normal.

[0078] Further, each time the control panel determines that the refrigerator temperature is abnormal, the control panel records the number of times of determining abnormality, 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 times of determining abnormality is cleared. When the number of times of determining abnormality recorded by the control panel reaches a preset first threshold value, the control panel controls the alarm device to alarm.

[0079] For example, the first threshold value is 3, 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°, it is determined that the refrigerator temperature is abnormal, and the control panel records one time of determining abnormality. When the refrigerator temperature obtained by the control panel for the second time is 18°, it is determined that the refrigerator temperature is abnormal, and the control panel records two times of determining abnormality. When the refrigerator temperature obtained by the control panel for the third time is 16°, it is determined that the refrigerator temperature is abnormal, the control panel records three times of determining abnormality, the number of times of determining abnormality recorded by the control panel reaches the preset first threshold value, and the control panel controls the alarm device to alarm. When the refrigerator temperature obtained by the control panel for the third time is 15°, it is determined that the refrigerator temperature is normal, the number of times of determining abnormality recorded by the control panel is cleared, and the control panel acquires the ambient temperature to perform subsequent steps.

[0080] The ion generator sterilization control method provided in the application determines the operating state of the refrigerator through temperature monitoring, and avoids the risk of combustion and explosion caused by the opening of the ion generator under the condition of refrigerant leakage. At the same time, it is different from the fixed control logic of the ion generator in the current product (the control rules are the same under different ambient temperatures), and automatically matches the ion generator opening operating time according to the refrigeration start rate, so as to improve the sterilization efficiency and effectively solve the problem of poor sterilization effect caused by the non-operation of the ion generator under low ambient temperature

[0081] Reference Figure 2 and Figure 3As shown, the application also provides a refrigerator, which comprises a controller 10 and a first temperature sensor 20, a second temperature sensor 30 and an ion generator 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 generator 40 includes but is not limited to a negative ion generator, a positive and negative ion generator, a plasma generator and an ozone generator.

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

[0084] The controller is provided with a safety evaluation program and a sterilization control program.

[0085] The safety evaluation program includes: refrigeration of the refrigerator, automatic monitoring of the first temperature sensor on the temperature change in the chamber. After receiving the refrigeration instruction, the controller obtains the refrigerator temperature monitored by the first temperature sensor and evaluates it. If the refrigerator temperature runs abnormally, it is fed back to the control system, and the control system controls the sterilization program not to start. If the refrigerator temperature runs normally, it is fed back to the control system, and the control system controls the sterilization program to start.

[0086] The sterilization control program includes: automatic detection of the second temperature sensor on the ambient temperature and feedback to the control panel, automatic matching of the control panel on the refrigeration start-up rate of the refrigerator under the ambient temperature, and automatic matching of the module operation rules according to the refrigeration start-up rate.

[0087] If the actual detected ambient temperature of the refrigerator is 32-38℃, the ambient temperature is in the first temperature range, the refrigerator is in the high refrigeration start-up rate, and the control panel controls the ion generator to run during the refrigeration start-up process. The running time of the ion generator is t1 each time, and the cumulative running time is T1.

[0088] If the actual detected ambient temperature of the refrigerator is 25-32℃, the ambient temperature is in the second temperature range, the refrigerator is in the high refrigeration start-up rate, and the control panel controls the ion generator to run during the refrigeration start-up process. The running time of the ion generator is t2 each time, and the cumulative running time is T2.

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

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

[0091] Preferably, the peak ozone concentration should be less than 0.1 ppm, i.e. A < 0.1 ppm.

[0092] It should be noted that the numerical values and numerical ranges involved in the embodiments of the present application are approximate values, and there can be a certain range of error due to the manufacturing process, 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, recombine, etc. the embodiments of the present application on the basis of the several embodiments provided by the present application to obtain other embodiments, and these embodiments do not exceed the protection scope of the present application.

[0094] The above specific embodiments further illustrate the purpose, technical solutions and beneficial effects of the embodiments of the present application. It should be understood that the above is only a specific embodiment of the present application and is not intended to limit the protection scope of the embodiments of the present application. Any modification, equivalent replacement, improvement, 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. An ion generator sterilization control method characterized by: Comprising; Monitoring the target compartment temperature of the refrigerator to obtain a refrigerator temperature and transmitting the refrigerator temperature to a control panel; The control panel 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, monitoring the ambient temperature of the refrigerator to obtain an ambient temperature and transmitting the ambient temperature to the control panel; The control panel determines a refrigerator refrigeration startup probability according to the ambient temperature; The control panel determines a refrigerator refrigeration startup probability according to the ambient temperature, specifically comprising; The control panel determines a temperature range in which the ambient temperature is located; According to the temperature range, the running time of the ion generator each time and the cumulative running time are set; When determining whether the refrigerator temperature is normal, if the refrigerator temperature is not normal, the ion generator is turned off or remains in the off state, and the target compartment temperature of the refrigerator is detected again to determine whether the refrigerator temperature is normal.

2. The ion generator sterilization control method according to claim 1, characterized in that: When the ambient temperature is in a first temperature range, the control panel controls the running time of the ion generator each time to be t1, and the cumulative running time to be T1; After 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.

3. The ion generator sterilization control method according to claim 1, characterized in that: When the ambient temperature is in a second temperature range, the control panel controls the running time of the ion generator each time to be t2, and the cumulative running time to be T2; After 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.

4. The ion generator sterilization control method according to claim 1, characterized in that: When the ambient temperature is in a third temperature range, the control panel controls the running time of the ion generator each time to be t3, and the cumulative running time to be T3; After 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.

5. The ion generator sterilization control method according to claim 1, characterized in that: When the refrigerator temperature is detected to be not normal for N consecutive times, the control panel controls an alarm device to alarm, and N is a first threshold value.

6. A refrigerator characterized by comprising: The controller (10) and the first temperature sensor (20), the second temperature sensor (30) and the ion generating device (40) electrically connected with the controller (10) respectively; The controller, the first temperature sensor, the second temperature sensor and the ion generating device are configured to perform the ion generator sterilization control method of any one of claims 1-5.

7. The refrigerator according to claim 6, 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.

8. The refrigerator according to claim 6, characterized in that: The ozone concentration peak value generated by the ion generating device is A, and 0.05 ppm≤A≤0.15 ppm.

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