CN108444202A - A kind of control method and refrigerator for refrigerator sterilization - Google Patents

Abstract

The invention provides a control method for refrigerator sterilization and a refrigerator. At least one ultraviolet germicidal lamp is arranged in a storage room of the refrigerator, wherein the control method includes: detecting whether the door body of the refrigerator is sealed; When the food is placed in the sterilization area of the storage compartment, it is detected; the sterilization start signal is obtained; the type of food in the sterilization area is identified and the weight of the food is measured, and the sterilization level is determined according to the type and weight of the food. The sterilization level is preset with UV The turn-on time and luminous intensity of the germicidal lamp; the start-up of the ultraviolet germicidal lamp is controlled according to the determined turn-on time and luminous intensity of the germicidal level. The invention solves the problem that the sterilizing module of the refrigerator in the prior art is always in the working mode of alternate start and stop, resulting in waste of electric energy.

Description

A control method for refrigerator sterilization and refrigerator

technical field

The invention relates to the field of refrigerators, in particular to a control method for sterilization of refrigerators and a refrigerator.

Background technique

At present, the sterilizing module in the refrigerator often adopts the control method of alternate start and stop to sterilize the food in the refrigerator. In this way, when the food does not need to be sterilized, the sterilizing module in the refrigerator is still in the sterilizing mode, which will undoubtedly greatly waste electric energy.

Contents of the invention

An object of the present invention is to provide a control method for refrigerator sterilization and a refrigerator, so as to solve the problem in the prior art that the sterilization module of the refrigerator is always in the working mode of alternate start and stop, resulting in waste of electric energy.

In particular, the present invention provides a control method for sterilization of a refrigerator, wherein at least one ultraviolet germicidal lamp is arranged in a storage compartment of the refrigerator, wherein the control method includes:

Detecting whether the door body of the refrigerator is sealed;

When the door body of the refrigerator is sealed, it is detected that the food is placed in the sterilization area of the storage compartment;

Obtain a sterilization start signal;

Identifying the type of food in the sterilization area and measuring the weight of the food, and determining the sterilization level according to the type and weight of the food, the sterilization level is preset with the turn-on time and luminous intensity of the ultraviolet germicidal lamp;

The start-up of the ultraviolet germicidal lamp is controlled according to the determined turn-on time and luminous intensity specified by the sterilizing level.

Further, the step of controlling the start-up of the ultraviolet germicidal lamp according to the determined turn-on time and luminous intensity specified by the sterilizing level specifically includes:

When reaching a high level of sterilization, make the ultraviolet germicidal lamp irradiate the food with ultraviolet rays of a first preset intensity within a first preset time period, so as to sterilize the food;

When the moderate sterilization level is reached, the ultraviolet germicidal lamp is used to irradiate the food with ultraviolet rays of a second preset intensity within a second preset time period, so as to sterilize the food;

When the mild sterilization level is reached, the ultraviolet germicidal lamp is used to irradiate the food with ultraviolet rays of a third preset intensity within a third preset time period, so as to sterilize the food.

Further, the step of determining the sterilization level according to the type and weight of the food specifically includes:

If the food is vegetables and its weight is greater than a first preset weight, or if the food is meat and its weight is greater than a second preset weight, then sterilize the food at a high sterilization level;

If the food is vegetables and its weight is greater than the second preset weight and less than or equal to the first preset weight, or if the food is fruit and its weight is greater than the first preset weight, the medium sterilization level is used to treat the Food is sterilized;

If the food is vegetables and its weight is less than or equal to the second preset weight, or if the food is fruit and its weight is less than the first preset weight, the food is sterilized at a mild sterilization level.

Further, the first preset intensity of ultraviolet rays is 90-110uw/cm ² , and the first preset time is 35-45 minutes;

The second predetermined intensity of ultraviolet rays is 70-80uw/cm ² , and the first predetermined time is 25-35 minutes;

The ultraviolet rays of the third preset intensity are 55-65uw/cm ² , and the first preset time is 20-30 minutes.

Further, the outer wall of the refrigerator is provided with an indicator light and/or a buzzer, wherein, after the step of controlling the start-up of the ultraviolet germicidal lamp according to the determined turn-on time and luminous intensity specified by the sterilization level, it also includes:

The indicator light flickers, and/or the buzzer sounds to remind the user that the food has been sterilized.

The present invention also provides a refrigerator, which includes:

The storage compartment has a shelf board movably connected thereto and an ultraviolet germicidal lamp arranged above or below the shelf board; and

A controller, which includes a memory and a processor, wherein the memory stores a computer program, and when the program is executed by the processor, the control method according to any one of claims 1 to 5 can be executed on the shelf. The food on the food plate is sterilized.

Further, the storage compartment includes two ultraviolet germicidal lamps, which are respectively arranged above and below the shelf to sterilize the top and bottom of the food on the shelf;

Wherein, the outer surfaces of the two ultraviolet germicidal lamps are covered with a vacuum heat insulation layer to reduce the heat emitted by the ultraviolet germicidal lamps from affecting the temperature in the storage compartment;

The shelf is a translucent shelf.

Further, the inner side wall of the storage compartment has a plurality of inclined sumps for collecting condensation; and the storage compartment is also provided with an evaporation tank connected to the lowest end of the sump and a heating plate located at the bottom of the storage compartment;

The evaporating tank is configured to extend from the lowermost end of the water collecting tank to the heating plate for introducing the condensed dew flowing into the water collecting tank into the heating plate so as to be heated by the heating plate. The plate evaporates the condensation.

Further, a switch is provided on the outer wall of the refrigerator, so as to control the on or off of the ultraviolet germicidal lamp through the switch.

Further, the outer wall of the refrigerator is provided with an indicator light, which is used to emit light when the storage compartment in the refrigerator is sterilized in a controlled manner, so as to indicate that the sterilization has been completed; and/or

The outer wall of the refrigerator is provided with a display screen for displaying the remaining time of sterilization or the duration of sterilization.

The beneficial effects of the present invention are:

First, the control method first detects whether the refrigerator door is sealed, so as to detect that food is placed in the sterilization area of the storage compartment under the premise of sealing, and then obtains the sterilization start signal, thereby starting to identify the type of food in the sterilization area and measure The weight of the food, and determine the sterilization level according to the type and weight of the food. Since the sterilization level is preset with the opening time and luminous intensity of the ultraviolet germicidal lamp, the ultraviolet germicidal lamp can be controlled according to the opening time and luminous intensity specified by the determined sterilization level. Activate to sterilize food. In this way, the control method first determines the corresponding sterilization level according to the type and weight of the food to be sterilized, so that the ultraviolet germicidal lamp can be controlled to irradiate the food within the specified turn-on time according to different sterilization levels, and during the irradiation process. The specified luminous intensity sterilizes food, so that the luminous intensity and working time of the ultraviolet germicidal lamp can be qualitatively and quantitatively controlled, so as to achieve the purpose of sterilizing food while saving energy, and solve the problem of sterilization of refrigerators in the prior art. The module has been in the working mode of alternate start and stop, which leads to the waste of electric energy.

Furthermore, before starting the sterilizing signal, it is first detected whether the door of the refrigerator is sealed, and only when it is sealed, the sterilizing signal is turned on. In this way, it is possible to prevent ultraviolet rays from leaking due to the unsealed refrigerator door, thereby causing harm to the human body.

Furthermore, food is placed on the translucent shelf board. When the ultraviolet germicidal lamps above and/or below the translucent shelf board irradiate the food separately or simultaneously, since the shelf board has the effect of light transmission, therefore, Ultraviolet rays can penetrate the shelf board to achieve the purpose of not only sterilizing the top or surface of the food, but also sterilizing the bottom of the food, thus solving the problem of the sterilizing effect caused by the narrow range of ultraviolet rays covering food in the prior art bad question.

Those skilled in the art will be more aware of the above and other objects, advantages and features of the present invention according to the following detailed description of specific embodiments of the present invention in conjunction with the accompanying drawings.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Fig. 1 is a schematic flowchart of a control method for refrigerator sterilization according to an embodiment of the present invention;

Fig. 2 is a schematic flowchart of a control method for refrigerator sterilization according to another embodiment of the present invention;

Fig. 3 is a schematic structural diagram of a refrigerator according to an embodiment of the present invention;

Fig. 4 is a schematic structural block diagram for a refrigerator according to an embodiment of the present invention;

Fig. 5 is a schematic connection structure diagram of the refrigerator liner and the storage compartment shown in Fig. 3;

Fig. 6 is a schematic structural diagram of a sump in the storage compartment shown in Fig. 3;

Fig. 7 is a schematic structural view of the inner side wall of the storage compartment with the water collection tank shown in Fig. 6 .

Detailed ways

Fig. 1 is a schematic flowchart of a control method for refrigerator sterilization according to an embodiment of the present invention, to solve the problem of waste of electric energy caused by the sterilization module of the refrigerator in the prior art always in the working mode of alternate start and stop question. At least one ultraviolet germicidal lamp is installed in the storage room of the refrigerator, and the control method may include:

S101. Detecting whether the door body of the refrigerator is sealed;

S102. When the door of the refrigerator is sealed, it is detected that the food is placed in the sterilization area of the storage compartment;

S103. Obtain a sterilization start signal;

S104. Identify the type of food in the sterilization area and measure the weight of the food, and determine the sterilization level according to the type and weight of the food. The sterilization level is preset with the turn-on time and luminous intensity of the ultraviolet germicidal lamp;

S105. Control the start-up of the ultraviolet germicidal lamp according to the determined turn-on time and luminous intensity of the sterilizing level.

The control method of this embodiment first detects whether the refrigerator door is sealed, so as to detect that food is placed in the sterilization area of the storage compartment under the premise of sealing, and then obtains the sterilization start signal, thereby starting to identify the type of food in the sterilization area and measure The weight of the food, and determine the sterilization level according to the type and weight of the food. Since the sterilization level is preset with the opening time and luminous intensity of the ultraviolet germicidal lamp, the ultraviolet germicidal lamp can be controlled according to the opening time and luminous intensity specified by the determined sterilization level. Activate to sterilize food. In this way, the control method first determines the corresponding sterilization level according to the type and weight of the food to be sterilized, so that the ultraviolet germicidal lamp can be controlled to irradiate the food within the specified turn-on time according to different sterilization levels, and during the irradiation process. The specified luminous intensity sterilizes food, so that the luminous intensity and working time of the ultraviolet germicidal lamp can be qualitatively and quantitatively controlled, so as to achieve the purpose of sterilizing food while saving energy, and solve the problem of sterilization of refrigerators in the prior art. The module has been in the working mode of alternate start and stop, which leads to the waste of electric energy.

In addition, before starting the sterilizing signal, first check whether the door of the refrigerator is sealed, and only turn on the sterilizing signal when it is sealed, so as to prevent ultraviolet rays from leaking due to the unsealed refrigerator door, thereby causing harm to the human body.

In the above embodiment, as shown in Figure 2, the step of controlling the start-up of the ultraviolet germicidal lamp according to the determined turn-on time and luminous intensity specified by the sterilization level may specifically include:

S501. When a high level of sterilization is reached, make the ultraviolet germicidal lamp irradiate the food with ultraviolet rays of a first preset intensity within a first preset time period, so as to sterilize the food.

S502. When reaching a moderate sterilization level, make the ultraviolet germicidal lamp irradiate the food with ultraviolet rays of a second preset intensity within a second preset time period, so as to sterilize the food.

S503. When the mild sterilization level is reached, make the ultraviolet germicidal lamp irradiate the food with ultraviolet rays of a third preset intensity within a third preset time period, so as to sterilize the food.

It is worth noting that the control method in this embodiment automatically determines the sterilization level based on the principle of high efficiency and energy saving, so that the irradiation intensity of the ultraviolet germicidal lamp (that is, the ultraviolet germicidal dose) and the time of sterilization can be controlled according to different sterilization levels, wherein, The irradiation dose (J/m2) can be the product of the irradiation time (s) and the irradiation intensity (W/m2). Among them, the first preset intensity of ultraviolet rays can be 90-110uw/cm ² or about 100uw/cm ² , the first preset time can be 35-45 minutes, or about 40 minutes; the second preset The intensity of ultraviolet rays can be 70-80uw/cm ² or about 75uw/cm ² ; the first preset time can be 25-35 minutes or about 230 minutes; the third preset intensity of ultraviolet rays can be 55- 65uw/cm ² , or about 60uw/cm ² , the first preset time can be 20-30 minutes, or about 25 minutes. In this way, according to the type and weight of the food to be sterilized, the corresponding sterilization level is determined, and the irradiation intensity and sterilization time of the control ultraviolet germicidal lamp are determined through different sterilization levels, so that according to different food types and different food quantities (weight) ), sterilize the food in the storage compartment with the optimal sterilization mode (sterilization level), so as to achieve the purpose of sterilizing the food while saving energy, and solve the problem that the sterilization module of the refrigerator in the prior art has always been in the The problem of waste of electric energy in the working mode of alternate start and stop.

In the above further embodiment, the step of determining the sterilization level according to the type and weight of the food may specifically include:

If the food is vegetables and its weight is greater than the first preset weight, or the food is meat and its weight is greater than the second preset weight, the food can be sterilized at a high sterilization level;

If the food is vegetables and its weight is greater than the second preset weight and less than or equal to the first preset weight, or the food is fruit and its weight is greater than the first preset weight, the food can be sterilized at a moderate sterilization level;

If the food is vegetables and its weight is less than or equal to the second preset weight, or if the food is fruit and its weight is less than the first preset weight, the food can be sterilized at a mild sterilization level.

Wherein, the first preset weight may be 1.5-2.5 kg, or about 2 kg. The second preset weight can be 0.5-1.5kg, or about 1kg.

The identification of food types can be realized by infrared identification technology. That is, an infrared sensing device 20 composed of an infrared transmitter, a processor and a receiver, as shown in FIG. 3 . Infrared rays are emitted by the infrared transmitter, and reflected light waves are formed after irradiating the food. The processor analyzes the frequency and intensity of the light waves received by the receiver, and compares them with the database to lock the type of food material corresponding to the frequency and intensity of the light waves. In this embodiment, food can be mainly divided into three types: fruits, vegetables, and meat. It can also be further refined to divide food into fruits, vegetables, meat, beans, snacks, aquatic foods and so on. The weight or quantity of food can be determined by the built-in balance 21 in the storage room.

In a further embodiment, the outer wall of the refrigerator may be provided with an indicator light and/or a buzzer (not shown in FIG. 3 ), wherein the ultraviolet germicidal lamp is controlled according to the opening time and luminous intensity specified according to the determined sterilization level. The start-up step can also include:

The indicator light flickers, or the buzzer sounds, or the indicator light flickers and the buzzer sounds at the same time, so as to remind the user whether the above-mentioned food sterilization process has been completed.

In any one of the above embodiments, the control method may further include setting the time for turning on the sterilization signal, and automatically turning on the sterilization signal when a preset time is reached after the door body is closed. Therefore, the food put into the storage compartment can be automatically sterilized after the door body is closed. It is not necessary to start the sterilizing signal manually.

3 and 4, the present embodiment also provides a refrigerator 100, which may include a storage compartment 1, the storage compartment 1 has a shelf 2 movably connected therewith and a shelf arranged on the shelf. 2 above or below the ultraviolet germicidal lamp 3; and a controller 4 including a memory and a processor, wherein the memory can store a computer program, and when the program is executed by the processor, the control method according to any one of the above-mentioned embodiments can be executed. The food on the shelf board 2 is sterilized. The storage compartment 1 is fixedly connected with the inner container structure of the refrigerator 100 (as shown in FIG. 5 ). In this way, the refrigerator of this embodiment can first determine the corresponding sterilization level according to the type and weight of the food to be sterilized, and then control the ultraviolet germicidal lamp 3 to irradiate the food within the prescribed turn-on time according to the different sterilization levels, and during the irradiation During the process, the food is sterilized with a specified luminous intensity, so that the luminous intensity and working time of the ultraviolet germicidal lamp can be qualitatively and quantitatively controlled, so as to achieve the purpose of sterilizing food while saving energy. Therefore, the existing technology can be solved. The sterilization module of the refrigerator in the refrigerator has been in the working mode of alternating start and stop, which leads to the waste of electric energy.

In the above-mentioned embodiment, it will be described with reference to FIG. 3 and FIG. 5 that two ultraviolet germicidal lamps 3 may be included in the storage compartment 1, which are respectively arranged above and below the shelf board 2, so as to The top and bottom of the food are sterilized. In this embodiment, the number of ultraviolet germicidal lamps 3 can be set according to actual needs, such as setting one, two, three, four, five, etc. of ultraviolet germicidal lamps 3 . In the case of multiple ultraviolet germicidal lamps, they are generally installed above and below the shelf 2 to sterilize the food placed on the shelf from multiple angles, thereby further improving the sterilization efficiency. Wherein, the outer surface of one or two etc. ultraviolet germicidal lamps can be covered with a vacuum heat insulation layer, so as to reduce the influence of the heat emitted by the ultraviolet germicidal lamps on the indoor temperature of the storage room. Wherein, the setting position of the ultraviolet germicidal lamp 3 can also be set at other positions in the storage compartment 1, as long as it is convenient to sterilize the food.

In addition, the shelf 2 can be a light-transmitting shelf. Put the food on the transparent shelf board, when the ultraviolet germicidal lamps above and/or below the transparent shelf board irradiate the food separately or simultaneously, since the shelf board has the function of light transmission, the ultraviolet rays can Penetrate the shelf board to achieve the purpose of not only sterilizing the top or surface of the food, but also sterilizing the bottom of the food, thus solving the problem of poor sterilization effect caused by the narrow range of ultraviolet rays covering food in the prior art question.

In the above further embodiment, the outer wall of the refrigerator may be provided with an indicator light (not shown in FIG. 3 ), which is used to emit light when the storage compartment 1 in the refrigerator is sterilized in a controlled manner, to indicate that the sterilization has been completed. . The outer wall of the refrigerator can also be provided with a display screen (not shown in FIG. 3 ) for displaying the remaining time of sterilization or the duration of sterilization.

6 and 7, in any of the above-mentioned embodiments, the inner side wall 10 of the storage compartment 1 may have a plurality of inclined sumps 11 for collecting condensation; and the storage compartment 1 is also An evaporation tank 14 connected to the lowest end of the sump 11 and a heating plate 15 arranged at the bottom of the storage compartment 1 may be provided. Wherein, the evaporating tank 14 can be configured to extend from the lowest end of the sump 11 to the heating plate 15, and is used to introduce the condensation that flows into the sump 11 into the heating plate 15, so that the heating plate 15 can Condensation evaporates.

It should be noted that since the inner side wall 10 of the storage compartment 1 has a special inclined water collection tank 11, when the ultraviolet germicidal lamp 3 is working normally, the inner side wall 10 of the storage compartment 1 will gather condensation. The design of the sump 11, the condensation on the inner wall will be collected in the sump 11, and the lowest end of the sump 11 is connected to the port of the evaporation tank, and the condensation in the sump will be introduced into the evaporation tank due to gravity . The shape of the sump 11 can be set according to actual needs, and it can be convenient to collect condensation. The quantity of the sump 11 can also be set according to actual needs. When the inner wall 10 of the storage compartment 1 is provided with a plurality of water collection tanks 11, each water collection tank can be arranged in parallel, or can be set according to requirements, but the port at the lowest end of each water collection tank can pass through the circulation groove 12 connected, and the circulation tank 12 communicates with the evaporation tank 14 so that the circulation tank 12 can introduce the condensate flowing into it into the evaporation tank 14 . Of course, the circulation tank 12 can also be an evaporation tank 14, but the evaporation tank 14 provided on the bottom surface of the storage compartment 1 can be configured to extend to the lowest port of each water collection tank. Wherein, the bottom surface of the storage compartment 1 can be provided with a heating plate 15, and the evaporation tank 14 or part of the evaporation tank located on the bottom surface of the storage room can be arranged on the heating plate 15 (that is, the evaporation tank and the heating plate are two separate parts) , also can directly be integrated with evaporating groove on heating plate 15 (that is, evaporating groove can be the groove that is provided with on heating plate).

Wherein, the evaporating tank 14 can be a heat-conducting stainless steel plate, that is, an evaporating tank can be arranged on the stainless steel heating plate, which can absorb the heat generated by the ultraviolet germicidal lamp and the heat of the ultraviolet rays in the storage room, and the temperature is higher. When the sterilization is completed and the front cover 13 is opened, the condensation in the evaporation tank 14 is heated by the heating plate and evaporated, which not only takes away the heat generated by the ultraviolet germicidal lamp, but also makes the inner side of the storage room The condensation on the wall is reduced, and a certain amount of humidity can also be added to the storage compartment.

Among them, the evaporation tank can actually be a fine texture. The inner side wall 10 of the storage compartment 1 can be provided with a plurality of smooth inclined water collection grooves 11, which are used together with the evaporation groove to collect and drain the condensation into the evaporation groove, and finally make the condensation heated and evaporated.

In a specific embodiment, the refrigerator of this embodiment may include a storage compartment 1 and a controller 4 . A front cover 13 may also be included. One or more ultraviolet germicidal lamps 3 can be provided above or below the shelf board 2 in the storage room 1, and the outer wall of the refrigerator or the outer surface of the door can be provided with a sterilization time display screen and an indicator light. A manual switch can also be provided on the outer wall of the refrigerator or on the outer surface of the door. When it is necessary to sterilize food, just open the front cover of the sterilization chamber, put the food on the transparent shelf, and close the front cover. At this time, you can manually open the working button, or you can reach the preset level after the door is closed. When the time expires, the sterilization signal will be turned on automatically. Then, the food in the storage compartment is automatically scanned and sterilized according to the control method described in any one of the above embodiments. At this time, the front cover 13 is always in the closed state. At this time, the indicator light arranged on the outer wall of the refrigerator or the outer surface of the door turns red, indicating that the storage compartment is in the process of being sterilized. A timer can be arranged in the refrigerator, and the timer starts timing at this time, and the remaining sterilization time is displayed on the display screen. After the sterilization is completed, the controller 4 can automatically cut off the power supply of the ultraviolet germicidal lamp. At this time, the indicator light can be changed to green or other colors different from red, indicating that the sterilization is completed. At this point, the front cover can be opened to take out the food. During the working process of the above-mentioned ultraviolet germicidal lamp, other modules of the refrigerator can be used normally, and the refrigerator door can also be opened and closed normally. module.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (10)

1. a kind of control method for refrigerator sterilization, the storing of the refrigerator is indoor to be provided at least one ultraviolet-sterilization Lamp, wherein the control method includes：

Whether the door body for detecting the refrigerator seals；

When the door body of the refrigerator is sealing, detection food is placed on the sterilization region of storing compartment；

Obtain sterilization enabling signal；

It identifies the type of the food in the sterilization region and measures the weight of the food, and according to the food species and weight Determine that germicidal levels, the germicidal levels are preset with opening time and the luminous intensity of the ultraviolet germicidal；

The ultraviolet germicidal is controlled according to opening time as defined in the germicidal levels determined and luminous intensity to start.

2. control method according to claim 1, wherein according to the opening time as defined in the germicidal levels determined The step of ultraviolet germicidal starts is controlled with luminous intensity, is specifically included：

When reaching height germicidal levels, make purple of the ultraviolet germicidal with the first preset strength in the first preset time period The food is irradiated in outside line, to be sterilized to the food；

When reaching moderate germicidal levels, make purple of the ultraviolet germicidal with the second preset strength in the second preset time period The food is irradiated in outside line, to be sterilized to the food；

When reaching slight germicidal levels, make purple of the ultraviolet germicidal with third preset strength in third preset time period The food is irradiated in outside line, to be sterilized to the food.

3. control method according to claim 2, wherein determine germicidal levels according to the type of the food and weight Step specifically includes：

If the food is vegetables and its weight is more than the first preset weight or the food is meat and its weight is more than second Preset weight then sterilizes the food with height germicidal levels；

If the food is vegetables and its weight is more than the second preset weight and is less than or equal to the first preset weight or the food Object is fruit and its weight is more than the first preset weight, then is sterilized to the food with moderate germicidal levels；

If the food is vegetables and its weight is less than or equal to the second preset weight or the food is fruit and its weight is small In the first preset weight, then the food is sterilized with slight germicidal levels.

4. control method according to claim 2, wherein

The ultraviolet light of first preset strength is 90-110uw/cm², first preset time is 35-45 minutes；

The ultraviolet light of second preset strength is 70-80uw/cm², first preset time is 25-35 minutes；

The ultraviolet light of the third preset strength is 55-65uw/cm², first preset time is 20-30 minutes.

5. according to claim 2-4 any one of them control methods, the outer wall of the refrigerator is equipped with indicator light and/or buzzing Device, wherein control the ultraviolet germicidal according to opening time as defined in the germicidal levels determined and luminous intensity and open Further include after dynamic step：

The indicator light flicker and/or the buzzer send out the sound, to remind user complete to the sterilization of the food At.

6. a kind of refrigerator comprising：

Storing compartment, it is internal have with the board putting things that it is flexibly connected and above or below the board putting things ultraviolet kill Bacterium lamp；With

Controller comprising memory and processor, wherein the memory is stored with computer program, and the program is described Processor is able to carry out control method according to any one of claim 1 to 5 to the food on the board putting things when executing Object is sterilized.

7. refrigerator according to claim 6, wherein the indoor storing includes two ultraviolet germicidals, is respectively arranged on Above and below the board putting things, with to being sterilized at the top and bottom of the food on the board putting things；

Wherein, the outer surface of two ultraviolet germicidals is covered with vacuum heat-insulating layer, is sent out with reducing the ultraviolet germicidal Heat influence the indoor temperature of the storing；

The board putting things is light transmission board putting things.

8. the refrigerator described according to claim 6 or 7, wherein：

The madial wall of the storing compartment has multiple tilting catch basins for assembling condensation；And the storing compartment is also set There are the evaporator tank being connected with the minimum end of the catch basin and the heating plate set on storing compartment bottom；

The evaporator tank is configured to extend to from the heating plate from the minimum end of the catch basin, is used for the catch basin It flows into the condensation in it to imported at the heating plate, to be evaporated the condensation by the heating plate.

9. the refrigerator described according to claim 6 or 7, wherein

Switch is equipped at the outer wall of the refrigerator, to control being turned on and off for the ultraviolet germicidal by the switch.

10. the refrigerator described according to claim 6 or 7, wherein

The outer wall of the refrigerator is equipped with indicator light, shines when controllably completing sterilization for the storing compartment in the refrigerator, It has been completed with characterization sterilization；And/or

The outer wall of the refrigerator is equipped with display screen, the remaining time for showing sterilization or sterilization duration.