WO2024051491A1

WO2024051491A1 - Refrigerator and sterilization control method thereof

Info

Publication number: WO2024051491A1
Application number: PCT/CN2023/114302
Authority: WO
Inventors: 刘峰良; 栾福磊; 李召亮; 杨春; 杨大海; 王磊
Original assignee: 海信冰箱有限公司
Priority date: 2022-09-07
Filing date: 2023-08-22
Publication date: 2024-03-14

Abstract

A refrigerator (100) and a sterilization control method of the refrigerator (100). The refrigerator (100) comprises a refrigerator body (10), a door body (200), a storage device (50), a sterilization device (30), and a controller (40). The storage device (50) comprises a first housing (1010), a first cover plate (1012), and a drawer (1011), the drawer (1011) being configured to accommodate an article. The sterilization device (30) comprises a light source assembly (33) and a distance measurement component (35), the distance measurement component (35) being configured to measure a target distance between the article and the sterilization device (30). The controller (40) is configured to: when the door body (200) is open and the drawer (1011) is closed, turn on the sterilization device (30) for a first preset time and then turn off same; when the door body (200) is closed and the drawer (1011) is closed, turn on the sterilization device (30); when the door body (200) is open and the drawer (1011) is open, turn off the sterilization device (30); and determine an illumination intensity level on the basis of the target distance, and control the sterilization device (30) to perform sterilization at the illumination intensity level.

Description

Refrigerator and its sterilization control method

This application claims the priority of the Chinese patent application with application number 202211087147. The contents are incorporated into this application by reference.

Technical field

The present disclosure relates to the field of refrigeration technology, and in particular to a refrigerator and a sterilization control method thereof.

Background technique

With the development of refrigeration technology, refrigerators have become a commonly used item in people's work and life. Correspondingly, with the improvement of living standards, people are paying more and more attention to bacteria and odors in refrigerators.

Contents of the invention

In one aspect, a refrigerator is provided. The refrigerator includes a box body, a door body, a storage device, a sterilization device and a controller. The box includes a chamber. The door body is located at the opening of the chamber. The storage device includes a first housing, a first cover and a drawer. The first housing is located in the chamber. The first cover plate is installed on the housing. The drawer is disposed inside the housing. The drawer is configured to hold items. The sterilization device is provided on the first cover plate. The sterilization device includes a light source component and a distance measuring component. The light source assembly is configured to emit short-wave blue light to illuminate items in the drawer for sterilization. The distance measuring component is configured to detect a target distance between the item and the sterilization device. The controller is configured to: when the door is open and the drawer is closed, control the sterilization device to open for a first preset time and then close; when the door is closed and the drawer is closed, when the door is open and the drawer is open, control the sterilization device to close; determine the light intensity level according to the target distance, and control the sterilization device to the Light intensity level for sterilization. The state of the door includes opening and closing of the door, and the state of the drawer includes opening and closing of the drawer.

On the other hand, a sterilization control method for a refrigerator is provided. The refrigerator includes a box body, a door body, a storage device, a sterilization device and a controller. The box includes a chamber. The door body is located at the opening of the chamber. The storage device includes a first shell, a first cover and a drawer. The first housing is located in the chamber. The first cover plate is installed on the housing. The drawer is disposed inside the housing. The drawer is configured to hold items. The sterilization device is provided on the first cover plate. The sterilization device includes a light source component and a distance measuring component. The light source assembly is configured to emit short-wave blue light to illuminate items in the drawer for sterilization. The distance measuring component is configured to detect a target distance between the item and the sterilization device. The method includes: when the door is open and the drawer is closed, controlling the sterilization device to open for a first preset time and then close; when the door is closed and the drawer is closed, controlling The sterilization device is turned on; when the door is opened and the drawer is opened, the sterilization device is controlled to be closed; the light intensity level is determined according to the target distance, and the sterilization device is controlled to use the light intensity level according to the target distance. Perform sterilization. The state of the door includes opening and closing of the door, and the state of the drawer includes opening and closing of the drawer.

In another aspect, a sterilization control method for a refrigerator is provided. The refrigerator includes a box body, a door body, a storage device, a sterilization device and a controller. The box includes a chamber. The door body is located at the opening of the chamber. The storage device includes a first housing, a first cover and a drawer. The first housing is located in the chamber. The first cover plate is installed on the housing. The drawer is disposed inside the housing. The drawer includes a storage compartment. The drawer is configured to hold items. The sterilization device is provided on the first cover plate. The sterilization device is provided on the first cover plate. The sterilization device includes a light source component, a diffusion component, a target sensor and a controller. The light source assembly is configured to emit short-wave blue light to illuminate items in the drawer for sterilization. The diffusion assembly includes a diffusion component, a second housing and a second cover. The diffusion component includes a photosensitizer. The diffusion component is configured to diffuse the photosensitizer into the storage chamber when the sterilization device is turned on. The target sensor is configured to detect the current concentration of microorganisms within the storage chamber. The method includes: obtaining the current microbial concentration in the storage room; if the current microbial concentration is greater than a first concentration threshold, controlling the light source component and the diffusion component to turn on respectively; if the current microbial concentration is less than or equal to the first concentration threshold, controlling the diffusion component to close.

Description of the drawings

Figure 1 is a structural diagram of a refrigerator according to some embodiments;

Figure 2 is a structural diagram of a refrigeration system of a refrigerator according to some embodiments;

Figure 3 is a cross-sectional view of a storage device in a refrigerator according to some embodiments;

Figure 4 is another cross-sectional view of a storage device in a refrigerator according to some embodiments;

Figure 5 is a partial enlarged view of circle P in Figure 4;

Figure 6 is another cross-sectional view of a storage device in a refrigerator according to some embodiments;

Figure 7 is an exploded view of a sterilization device according to some embodiments;

Figure 8 is a structural diagram of a first cover plate and a sterilization device according to some embodiments;

Figure 9 is a partial enlarged view of circle A in Figure 8;

Figure 10 is a schematic diagram of a reflective film in a refrigerator according to some embodiments;

Figure 11 is a structural diagram of another refrigerator according to some embodiments;

Figure 12 is a flowchart of steps performed by a controller according to some embodiments;

Figure 13 is another flowchart of steps performed by a controller according to some embodiments;

Figure 14 is another flowchart of steps performed by a controller according to some embodiments;

Figure 15 is a schematic diagram of the lighting area of the storage room in the storage device according to some embodiments;

Figure 16 is a structural diagram of another sterilization device according to some embodiments;

Figure 17 is an exploded view of a sterilization device according to some embodiments;

Figure 18 is an exploded view of a light source assembly according to some embodiments;

Figure 19 is an exploded view of a diffusion assembly according to some embodiments;

Figure 20 is a structural diagram of a second housing according to some embodiments;

Figure 21 is a cross-sectional view of another storage device according to some embodiments;

Figure 22 is another structural diagram of a sterilization device according to some embodiments;

Figure 23 is a schematic diagram of the rotation angle of the light source assembly according to some embodiments;

Figure 24 is yet another flowchart of steps performed by a controller according to some embodiments;

Figure 25 is yet another flowchart of steps performed by a controller according to some embodiments;

Figure 26 is yet another flowchart of steps performed by a controller according to some embodiments;

Figure 27 is yet another flowchart of steps performed by a controller according to some embodiments;

Figure 28 is yet another flowchart of steps performed by a controller according to some embodiments;

Figure 29 is yet another flowchart of steps performed by a controller according to some embodiments;

Figure 30 is yet another flowchart of steps performed by a controller in accordance with some embodiments.

Detailed ways

Some embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present disclosure. Based on the embodiments provided by this disclosure, all other embodiments obtained by those of ordinary skill in the art fall within the scope of protection of this disclosure.

Unless the context otherwise requires, throughout the specification and claims, the term "comprise" and its other forms such as the third person singular "comprises" and the present participle "comprising" are used. Interpreted as open and inclusive, it means "including, but not limited to." In the description of the specification, the terms "one embodiment", "some embodiments", "exemplary embodiments", "example", "specific "example" or "some examples" and the like are intended to indicate that a particular feature, structure, material or characteristic associated with the embodiment or example is included in at least one embodiment or example of the present disclosure. The schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be included in any suitable manner in any one or more embodiments or examples.

Hereinafter, the terms “first” and “second” are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of indicated technical features. Therefore, features defined as "first" and "second" may explicitly or implicitly include one or more of these features. In the description of the embodiments of the present disclosure, unless otherwise specified, "plurality" means two or more.

In describing some embodiments, expressions "coupled" and "connected" and their derivatives may be used. The term "connection" should be understood in a broad sense. For example, "connection" can be a fixed connection, a detachable connection, or an integrated connection; it can be a direct connection or an indirect connection through an intermediate medium. The term "coupled" indicates that two or more components are in direct physical or electrical contact. The term "coupled" or "communicatively coupled" may also refer to two or more components that are not in direct contact with each other but still cooperate or interact with each other. The embodiments disclosed herein are not necessarily limited by the content herein.

"A and/or B" includes the following three combinations: A only, B only, and a combination of A and B. "At least one of A, B, or C" includes the following combinations of A, B, and C: A only, B only, C only, a combination of A and B, a combination of A and C, a combination of B and C, and A, A combination of B and C.

The use of "suitable for" or "configured to" in this document implies open and inclusive language that does not exclude devices that are suitable for or configured to perform additional tasks or steps.

As used herein, "about," "approximately," or "approximately" includes the stated value as well as an average within an acceptable range of deviations from the particular value, as determined by one of ordinary skill in the art. Determined taking into account the measurement in question and the errors associated with the measurement of the specific quantity (i.e., the limitations of the measurement system).

As used herein, "parallel," "perpendicular," and "equal" include the stated situation as well as situations that are approximate to the stated situation within an acceptable deviation range, where Such acceptable deviation ranges are as determined by one of ordinary skill in the art taking into account the measurement in question and the errors associated with the measurement of the particular quantity (ie, the limitations of the measurement system).

Usually, during the long-term storage of various foods in the refrigerator, bacteria tend to breed inside the refrigerator, and the proliferation of microorganisms such as bacteria causes odor inside the refrigerator. Microorganisms such as bacteria in the refrigerator mainly exist in the air inside the refrigerator and on the surfaces of items. The surface of the item includes the surface of the refrigerator material and the surface of the ingredients in the refrigerator. Microorganisms such as bacteria in the air inside the refrigerator can be sterilized through plasma sterilization, or the refrigerator can be sterilized through passive sterilization. For example, use antibacterial materials to make inner liner, door handles or door seals. For example, the antibacterial materials include nanosilica-loaded silver antibacterial agents, nanosilver-loaded titanium dioxide antibacterial agents, and the like. However, sterilization can only be achieved when microorganisms such as bacteria come into contact with components made of antimicrobial materials. When microorganisms such as bacteria do not come into contact with components made of antibacterial materials, sterilization cannot be achieved, so solutions using antibacterial materials can only perform local sterilization.

In some solutions, ultraviolet sterilization technology can be used to sterilize microorganisms such as bacteria on the surface of items. By irradiating ultraviolet light, the cell walls, deoxynucleotides and other structures of bacteria and other microorganisms can be destroyed to achieve sterilization. For example, an ultraviolet sterilization system is established through ultraviolet light sources, light-transmitting materials, reflective materials, filter devices, etc., to achieve the elimination of bacteria and other microorganisms. However, ultraviolet rays are harmful to the human body, food and refrigerator internal materials, and the cost of ultraviolet sterilization technology is relatively high. In addition, since ultraviolet rays cannot penetrate packaging materials (such as fresh-keeping bags, crisper boxes, glass, etc.), when the food in the refrigerator has packaging materials, the sterilization efficiency of ultraviolet rays is low.

In order to solve the above problems, some embodiments of the present disclosure provide a refrigerator 100.

Figure 1 is a structural diagram of a refrigerator according to some embodiments.

As shown in FIG. 1 , the refrigerator 100 includes a cabinet 10 . The box 10 serves as a supporting structure of the refrigerator 100, and includes one or more chambers 101. One or more chambers 101 may include a refrigerator, freezer, or temperature chamber. For example, as shown in FIG. 1 , one or more chambers 101 include a refrigerator compartment 1001 and a freezer compartment 1002 . The refrigerating compartment 1001 and the freezing compartment 1002 are arranged along the height direction of the box 10 (eg, the up-and-down direction in FIG. 1 ), and the refrigerating compartment 1001 is located on the upper side of the freezing compartment 1002 .

In some embodiments, as shown in FIG. 1 , the refrigerator 100 further includes one or more door bodies 200 configured to open or close the corresponding chamber 101 .

For example, in the case where the one or more chambers 101 include the refrigerating chamber 1001 and the freezing chamber 1002, the one or more door bodies 200 include a first sub-door body 2001 and a second sub-door body 2002. The first sub-door 2001 is provided at the opening of the refrigerating chamber 1001 and can pivot to open or close the refrigerating chamber 1001. The second sub-door 2002 is provided at the opening of the freezing chamber 1002 and can be pivoted to open or close. Freezer 1002.

In some embodiments, one chamber 101 may be provided with multiple doors 200 . For example, as shown in FIG. 1 , two first sub-doors 2001 are provided at the opening of the refrigerator compartment 1001 . The two first sub-doors 2001 respectively rotate toward or away from each other to close or open the refrigerator compartment 1001 .

In some embodiments, as shown in FIG. 1 , the door body 200 includes a fourth shell 201, an inner bladder 202, a first side panel 203, a second side panel 204, and a thermal insulation layer. The fourth housing 201 is located outside the box 10 . The inner bladder 202 is located inside the box 10 . The first side plate 203 is provided on one side (eg, the upper side) of the fourth shell 201 and the inner bladder 202, and the second side plate is disposed on the other side (the lower side) of the fourth shell 201 and the inner bladder 202. The fourth shell 201, the inner bladder 202, the first side plate 203 and the second side plate 204 are connected to each other to form the door body 200. The thermal insulation layer is provided in the space surrounded by the fourth shell 201, the inner bladder 202, the first side plate 203 and the second side plate 204. For example, the thermal insulation layer is filled with foam material.

Figure 2 is a structural diagram of a refrigeration system of a refrigerator according to some embodiments.

In some embodiments, as shown in FIG. 2 , the refrigerator 100 further includes a refrigeration system 20 , and the refrigeration system 20 is provided in the box 10 . The refrigeration system 20 is configured to provide cooling energy to the chamber 101 to maintain the chamber 101 at a preset temperature.

In some embodiments, as shown in Figure 2, the refrigeration system includes a compressor 210, a condenser 220, and an evaporator 260. The inlet of the compressor 210 is connected to the outlet of the evaporator 260 , and the outlet of the compressor 210 is connected to the inlet of the condenser 220 . The compressor 210 is configured to compress the refrigerant such that the low-pressure refrigerant is compressed to form a high-pressure refrigerant.

In some embodiments, as shown in FIG. 2 , the refrigeration system 20 further includes a filter 240 and a pressure reducer 250 . The inlet of the filter 240 is connected with the outlet of the condenser 220 , and the outlet of the filter 240 is connected with the inlet of the evaporator 260 . The filter 240 has a drying function and a filtering function. The pressure reducer 250 is provided between the outlet of the filter 240 and the inlet of the evaporator 260 .

In some embodiments, as shown in FIG. 2 , the refrigeration system 20 further includes a gas-liquid separator 270 . The gas-liquid separator 270 is disposed between the inlet of the compressor 210 and the outlet of the evaporator 260. The gas-liquid separator 270 is used to separate gaseous refrigerant and liquid refrigerant to avoid incomplete evaporation of the liquid refrigerant in the evaporator 260. , and the generated overhumid gas enters the compressor 210, thereby damaging the compressor 210.

In some embodiments, as shown in FIG. 2 , the refrigeration system further includes an anti-condensation pipe 230 located between the condenser 220 and the filter 240 . The anti-condensation pipe 230 can be provided at the inner frame of the door body 200 . And it is configured to increase the temperature of the door body 200 to prevent the water vapor outside the box 10 from condensing into water droplets when it encounters cold at the door body 200 .

In some embodiments, refrigeration system 20 also includes a fan. The fan is configured to allow air to enter the evaporator 260 and deliver the heat-exchanged air to the corresponding chamber 101 .

The working process of the refrigeration system 20 includes a compression process, a condensation process, a throttling process and an evaporation process.

The compression process includes: when the refrigerator 100 is powered on, the compressor 210 starts to work. The low-temperature, low-pressure refrigerant is sucked into the compressor 210, compressed into a high-temperature, high-pressure superheated gaseous refrigerant in the cylinder of the compressor 210, and then discharged to the condenser 220.

The condensation process includes: the high-temperature, high-pressure superheated gaseous refrigerant dissipates heat in the condenser 220 and is cooled into a saturated liquid. The pressure of the refrigerant remains roughly unchanged during the condensation process.

The throttling process includes: the saturated liquid filters out moisture and impurities through the filter 240 and then flows into the pressure reducer 250. The pressure reducer 250 performs throttling and pressure reduction, and the refrigerant becomes a low-pressure gas-liquid mixed two-phase refrigerant. (moist steam).

The evaporation process includes: low-pressure wet vapor absorbs heat and vaporizes in the evaporator 260 to lower the temperature of the evaporator 260 and its surrounding environment, and turn the refrigerant into a low-pressure gas. The refrigerant discharged from the evaporator 260 passes through the gas-liquid separator 270 and then returns to the compressor 210 .

It can be understood that by repeatedly performing the above process, the refrigeration system 20 can transfer the heat inside the refrigerator 100 to the outside of the refrigerator 100 to achieve refrigeration.

Figure 3 is a cross-sectional view of a storage device in a refrigerator according to some embodiments.

In some embodiments, as shown in FIG. 3 , the refrigerator 100 further includes one or more storage devices 50 . The storage device 50 includes a first housing 1010 . The first housing 1010 is fixedly connected to the box 10 and is located in the chamber 101 . Furthermore, a side of the housing 1010 close to the door 200 is opened to form an opening.

In some embodiments, as shown in FIG. 3 , the storage device 50 further includes a first cover 1012 and a drawer 1011 . The first cover 1012 covers the first housing 1010 . The drawer 1011 is provided in the first housing 1010. Drawer 1011 is configured to accommodate ingredients 300 .

Figure 4 is another cross-sectional view of a storage device in a refrigerator according to some embodiments. Figure 5 is a partial enlarged view of circle P in Figure 4.

As shown in Figures 4 and 5, the drawer 1011 includes a body 10111 and a handle 10112. Drawer 1011 includes storage compartment 10113. The handle 10112 is provided on the side of the body 10111 close to the door body 200 (the front side in Figure 5). By pulling or pushing the handle 10112, the drawer 1011 can be pulled out or pushed in from the opening of the first housing 1010.

In some embodiments, the drawer 1011 may be a bucket structure. For example, a side (top) of the drawer 1011 close to the first cover 1012 is open. Alternatively, the drawer 1011 may also have a cover structure, and the first cover 1012 may be provided on the top of the drawer 1011 .

Of course, in other embodiments, the storage device 50 may also include a shelf, the shelf is connected to the box 10 , and the food material 300 may be placed on the shelf.

Figure 6 is yet another cross-sectional view of a storage device in a refrigerator according to some embodiments.

In some embodiments, as shown in FIG. 6 , the storage device 50 further includes an air outlet 1020 . The air outlet 1020 is provided on the housing 1010, and the air outlet 1020 is configured to dissipate heat from the sterilization device 30 (as shown in FIG. 3), so as to improve the working life and sterilization effect of the sterilization device 30.

The sterilization device 30 in some embodiments of the present disclosure is described in detail below.

In some embodiments, as shown in FIG. 3 , the refrigerator 100 further includes a sterilization device 30 configured to emit short-wave blue light to sterilize the food ingredients 300 stored in the storage device 50 . The sterilization device 30 can be detachably disposed on the first cover 1012 to vertically illuminate the storage chamber 10113. For example, the sterilization device 30 is connected to the first cover 1012 through buckles or screws. Alternatively, the sterilization device 30 may be detachably disposed above the shelf. For example, the sterilization device 30 is detachably disposed on the corresponding box 10 above the shelf. Of course, the sterilization device 30 can also be an integral structure with the first cover 1012, the first housing 1010 or the box 10, which is not limited in this disclosure.

The following is an exemplary description taking the sterilization device 30 being disposed on the first cover 1012 as an example.

Figure 7 is an exploded view of a sterilization device according to some embodiments. Figure 8 is a structural diagram of the first cover plate and the sterilization device according to some embodiments. Figure 9 is a partial enlarged view of circle A in Figure 8.

In some embodiments, as shown in FIGS. 7 to 9 , the sterilization device 30 includes a first substrate 37 and a light source assembly 33 . The light source component 33 is disposed on the first substrate 37, and the light source component 33 is configured to emit short-wave blue light. As shown in FIG. 3 , the illumination angle B of the light source assembly 33 is any value in the target angle range, so that the light emitted by the light source assembly 33 can directly illuminate the surface of the food material 300 located in the storage chamber 10113 . The target angle range may be 30° to 120°. For example, the irradiation angle B is 30°, 65°, 90°, 105°, or 120°. Within this target angle range, it can basically be satisfied that the light emitted by the light source assembly 33 irradiates the surface of the food material 300 located in the storage chamber 10113 .

In some embodiments, as shown in FIGS. 7 to 9 , the sterilization device 30 further includes a distance measuring component 35 . The distance measuring component 35 is provided on the first substrate 37 , and is configured to detect the target distance H between the food material 300 in the storage chamber 10113 and the sterilization device 30 . Here, the target distance H is the minimum distance between the food material 300 and the sterilization device 30 . The ranging component 35 may be an ultrasonic ranging sensor, a laser ranging sensor or an infrared ranging sensor.

In some embodiments, when the distance measuring component 35 is an ultrasonic distance measuring sensor, the refrigerator 100 may further include a timer. The transmitting end of the ranging component 35 emits an acoustic signal, and the acoustic signal returns to the receiving end of the ranging component 35 after encountering the obstruction of the food material 300 . The timer starts timing when the sound wave signal is emitted and stops timing after receiving the reflected sound wave signal. According to the timing time t of the timer and the propagation speed v of the sound wave signal in the air, it can be calculated by formula (1) Target distance H.
H＝v×t/2 (1)

In some embodiments, as shown in FIGS. 7 to 9 , the sterilization device 30 further includes a radiator 36 . The heat sink 36 is located on a side of the first base plate 37 close to the first cover plate 1012 (eg, the upper side in FIG. 7 ), and the first base plate 37 and the heat sink 36 are fixed on the first cover plate 1012 . For example, the sterilization device 30 further includes a connection hole 38 . The first base plate 37 and the heat sink 36 are cooperatively fixed on the first cover plate 1012 through the connection holes 38 and bolts. The radiator 36 can be made of aluminum to improve the heat dissipation effect of the sterilization device 30, and the aluminum radiator can extend the working life of the sterilization device 30.

In some embodiments, as shown in FIGS. 7 to 9 , the sterilization device 30 further includes a lampshade 31 and a first connecting piece 34 . The lampshade 31 is located on the side of the first base plate 37 away from the first cover 1012 (eg, the lower side in FIG. 7 ), and is fixedly installed on the outside of the first base plate 37 through the first connector 34 (eg, buckle). , to cover the light source assembly 33 and the distance measuring component 35 .

In some embodiments, as shown in FIGS. 7 to 9 , the sterilization device 30 further includes a seal 32 . The sealing member 32 (such as a sealing strip) is provided in the lampshade 31 to isolate water vapor and prevent water vapor from entering the sterilization device 30 and corroding the light source assembly 33 .

Figure 10 is a schematic diagram of a reflective film in a refrigerator according to some embodiments.

In some embodiments, as shown in FIG. 10 , the storage device 50 further includes a reflective film 1013 . The reflective film 1013 is provided on the inner surface of the drawer 1011. The reflective film 1013 can be made of plastic material, and the reflective film 1013 contains reflective materials. The reflective film 1013 is configured to reflect the light emitted by the light source assembly 33 . For example, the light emitted by the light source assembly 33 is illuminated on the reflective film 1013, and the light is reflected and refracted to form reflected light 1014 and refracted light. In this way, the light emitted by the light source assembly 33 can evenly cover the inside of the drawer 1011, preventing the storage room 10113 from being completely covered when the light is vertically irradiated, improving the uniformity of the light, increasing the coverage area of the light, and improving the sterilization effect of the light.

In some examples, the interior surface of drawer 1011 is slightly convex. In this way, when the light emitted by the light source assembly 33 irradiates the reflective film 1013, the micro-convex surface can diffuse the light, thereby improving the light sterilization effect. For example, the middles of the inner surfaces (eg, four side surfaces and one lower surface) of the drawer 1011 respectively protrude in a direction away from the first housing 1010 to form the slightly convex surfaces.

In some embodiments, as shown in FIG. 1 , the refrigerator 100 further includes a first sensing component 205 , and the first sensing component 205 is disposed at the connection between the door body 200 and the box body 10 . The first sensing component 205 includes a first magnet, a first sensor 2051 and a hinge box 2052. The first magnet is provided in the hinge box 2052. The first sensor 2051 is provided on the upper part of the door body 200 and corresponds to the first magnet. The first sensor 2051 is configured to detect the first magnetic field intensity near the first sensor 2051 .

For example, when the first magnetic field intensity is less than the first set value (eg, 10Gs), it indicates that the distance between the first sensor 2051 and the first magnet is large. At this time, the switch in the first sensor 2051 The output level flips, the first sensor 2051 stops operating, and the door 200 opens. When the first magnetic field intensity is greater than or equal to the first set value (eg, 10Gs), it indicates that the distance between the first sensor 2051 and the first magnet is small. At this time, the switch in the first sensor 2051 The output level flips, the first sensor 2051 operates, and the door 200 closes.

As shown in FIG. 5 , the refrigerator 100 further includes a second sensing component 206 , and the second sensing component 206 is provided at the connection between the drawer 1011 and the first housing 1010 . The second sensing component 206 includes a second magnet 2061 and a second sensor 2062 . The second magnet 2061 is provided on the first shell Body 1010. The second sensor 2062 is provided on the handle 10112. The second magnet 2061 corresponds to the second sensor 2062. The second sensor 2062 is configured to detect the second magnetic field strength in the vicinity of the second sensor 2062 .

For example, when the second magnetic field intensity is less than the second set value (eg, 10Gs), it indicates that the distance between the second sensor 2062 and the second magnet 2061 is large. At this time, the output of the switch in the second sensor 2062 The level flips, the second sensor 2062 stops operating, and the drawer 1011 opens. When the second magnetic field intensity is greater than or equal to the second set value (eg, 10Gs), it indicates that the distance between the second sensor 2062 and the second magnet 2061 is small. At this time, the output of the switch in the second sensor 2062 The level flips, second sensor 2062 operates, and drawer 1011 closes.

Here, the first magnet and the second magnet 2061 may be permanent magnets. The first sensor 2051 and the second sensor 2062 may be Hall sensors. The state of the door 200 refers to the open and closed state of the door 200; the state of the drawer 1011 refers to the open and closed state of the drawer.

It should be noted that the first sensing component 205 and the second sensing component 206 can also be located at other positions of the refrigerator 100 . In addition, other sensors may also be used to detect the state of the door 200 and the state of the drawer 1011, and the first set value and the second set value may also be 0 or other values. This disclosure does not limit this.

Figure 11 is a structural diagram of another refrigerator according to some embodiments.

In some embodiments, as shown in FIG. 11 , the refrigerator 100 further includes a controller 40 . The controller 40 is installed in the box 10 . The refrigeration system 20 and the sterilization device 30 are electrically connected to the controller 40 respectively. For example, the sterilization device 30 further includes a connection line, which is electrically connected to the controller 40 through the gap of the first cover 1012 . The controller 40 is configured to control the sterilization device 30 to perform the sterilization work.

The controller 40 includes a central processing unit, a microprocessor (Microprocessor), and an Application Specific Integrated Circuit (ASIC), and may be configured to perform processing when the processor executes a non-transitory computer-readable memory coupled to the controller 40 program in the medium, the corresponding operations described in the controller 40 are performed.

In some embodiments, the controller 40 is also configured to: control the sterilization device 30 to open or close according to the status of the door 200 and the drawer 1011, and determine the corresponding light intensity level according to the target distance H to control the sterilization device 30 Sterilize according to the determined light intensity level.

For example, the first sensor 2051 and the second sensor 2061 are electrically connected to the controller 40. The controller 40 can determine whether the door 200 is open and whether the drawer 1011 is open based on the signals transmitted by the first sensor 2051 and the second sensor 2061. The ranging component 35 is electrically connected to the controller 40. The ranging component 35 detects the target distance H and sends parameters such as the target distance H to the controller 40. The controller 40 determines the corresponding light intensity level according to the target distance H, thereby controlling the sterilization. The device 30 performs sterilization according to the corresponding light intensity level.

In some embodiments of the present disclosure, the sterilization device 30 is installed above the drawer 1011. In this way, the short-wave blue light emitted by the sterilization device 30 can illuminate the entire storage room 10113 to sterilize the food materials 300, thereby improving the sterilization efficiency and avoiding damage. The ingredients 300 and the materials in the refrigerator 100 can avoid harming human health. The controller 40 adjusts the light intensity level according to the target distance H detected by the ranging component 35, thereby achieving good sterilization performance. In addition, the sterilization device 30 is easy to disassemble and assemble, and the sterilization device 30 can be directly installed on the cover plate without changing the structure of the storage device 50, and the cost is low.

The steps performed by the controller 40 will be described in detail below with reference to FIGS. 12 to 14 .

Figure 12 is a flowchart of steps performed by a controller in accordance with some embodiments.

In some embodiments, as shown in FIG. 12 , the controller 40 is configured to perform steps 11 to 14 .

In step 11, the status of the door 200 and the status of the drawer 1011 are obtained.

In step 12, when the door 200 is open and the drawer 1011 is closed, the sterilization device 30 is controlled to be turned on for a first preset time and then turned off.

For example, the first preset time is any value within 30s to 60s. For example, the first preset time is 30s, 45s or 60s. When the door 200 is opened and the drawer 1011 is closed, the controller 40 turns off the sterilizing device 30 when the opening time of the sterilizing device 30 is less than 30 seconds. The opening time of the sterilizing device 30 is too short and the sterilizing effect is low.

In step 13, when the door 200 is closed and the drawer 1011 is closed, the sterilization device 30 is controlled to be opened.

In step 14, when the door 200 is open and the drawer 1011 is open, the sterilization device 30 is controlled to close.

In some embodiments, the controller 40 is further configured to: when the sterilization device 30 is turned on, control the sterilization device 30 to perform sterilization in the first mode or the second mode. In the first mode, the controller 40 controls the light source component 33 to illuminate intermittently; in the second mode, the controller 40 controls the light source component 33 to continue to illuminate for a second preset time and then stop.

The first mode is used to meet the sterilization and preservation needs during the storage of daily items. The second mode is used to quickly sterilize newly placed items or items that have deteriorated, so as to meet the needs of users who want to eat items in a short time. It should be noted that in the second mode After the mode operation is completed, the controller 40 controls the sterilization device 30 to switch to the first mode to meet the sterilization and preservation needs of items in daily use.

It should be noted that a control panel can be provided on the drawer 1011 or the door 200 . A target button is provided on the control panel. After pressing the target button, the sterilization device 30 can be controlled to enter the second mode.

In some embodiments, the second preset time may be any value within the range of 1h to 2h. For example, the second preset time is 1h, 1.5h or 2h. When the sterilization device 30 enters the second mode for less than 1 hour, the sterilization effect of the sterilization device 30 is low; when the sterilization device 30 enters the second mode for more than 2 hours, there are fewer bacteria and other microorganisms on the surface of the food 300, and the second mode continues. Sterilization efficiency is low.

It should be noted that when the door 200 is opened and the drawer 1011 is closed, the controller 40 can control the sterilization device 30 to enter the second mode, and the continuous irradiation time of the light source assembly 33 is not limited by the second preset time. For example, the controller 40 controls the light source assembly 33 to continuously illuminate the first preset time.

In some embodiments, the controller 40 is further configured to determine the light intensity level according to the target distance H when the sterilization device 30 is turned on.

Figure 13 is another flowchart of steps performed by a controller in accordance with some embodiments.

When the sterilization device 30 is turned on, the controller 40 needs to determine the light intensity level. In this case, as shown in FIG. 13 , step 12 includes steps 121 to 123 , and step 13 includes steps 131 to 133 .

In step 121, it is determined that the door 200 is closed and the drawer 1011 is closed.

In step 122, the target distance H is obtained, and the light intensity level is determined based on the target distance H.

In step 123, the sterilization device 30 is controlled to be turned on at a determined light intensity level for a first preset time and then turned off.

In step 131, it is determined that the door 200 is opened and the drawer 1011 is closed.

In step 132, the target distance H is obtained, and the light intensity level is determined based on the target distance H.

In step 133, the sterilization device 30 is controlled to turn on at the determined light intensity level.

Figure 14 is another flowchart of steps performed by a controller in accordance with some embodiments.

In some embodiments, as shown in FIG. 14 , before steps 122 and 132 , the controller 40 is further configured to perform steps 17 and 18 .

In step 17, the light intensity range is determined based on the preset distance range and target formula.

The preset distance range is the range in which the preset target distance H is located, and the illumination intensity range is the range in which the illumination intensity E corresponding to the preset distance range is located.

The target formula is:
E＝aH ⁴ -bH ³ +cH ² +dH+e (2)

a, b, c, d, and e are constants respectively. The unit of target distance H is cm, and the unit of light intensity E is mW.

It should be noted that the energy of light radiation is inversely proportional to the target distance H. When the distance between the food 300 and the light source assembly 33 is large, the energy of light radiation is small, and the light radiation needs to be increased to achieve sterilization; when the distance between the food 300 and the light source assembly 33 is When the distance is small, the energy of optical radiation is large, and the optical radiation needs to be reduced to save energy consumption.

In some embodiments, a=0.001, b=0.039, c=0.505, d=2.539, e=2.21.

In step 18, one or more preset distance intervals are determined according to the preset distance range and the light intensity range, and the light intensity level corresponding to the preset distance interval is determined.

After calculating the corresponding light intensity range according to the target formula (2), the controller 40 sets the preset distance interval and the corresponding light intensity range according to the preset distance range and the light intensity range. Light intensity level.

For example, when the preset distance range is 0 to 20 cm, the controller 40 determines the corresponding light intensity range according to the target formula (2). In this case, if 5cm is used as the upper or lower limit of a preset distance interval, the controller 40 can set a preset distance interval from 0 to 5cm, and set the light intensity range corresponding to the preset distance interval (such as , 0<E≤23mW) is determined as the first level of light intensity level. By analogy, other preset distance intervals and light intensity levels are determined.

In some embodiments, the controller 40 is further configured to: when the sterilization device 30 is in the first mode, if the target distance H is greater than 0 and less than or equal to the first threshold H1 (0<H≤H1), determine The light intensity level is the first-level light intensity level; if the target distance H is greater than the first threshold H1 and less than or equal to the second threshold H2 (H1<H≤H2), the light intensity level is determined to be the second-level light intensity level; if the target distance H is greater than the second threshold H2 and less than or equal to the third threshold H3 (H2<H≤H3), the light intensity level is determined to be the third level light intensity level; if the target distance H is greater than the third threshold H3 and less than or equal to the fourth The threshold H4 (H3＜H≤H4) determines the light intensity level to be the fourth light intensity level.

In some embodiments, the controller 40 is further configured to: when the sterilization device 30 is in the second mode, if the target distance H is large If the target distance H is greater than the first threshold H1 and less than or equal to the second threshold H2 (H1 <H≤H2), determine the light intensity level to be the second level light intensity level; if the target distance H is greater than the second threshold H2, and less than or equal to the third threshold H3 (H2<H≤H3), determine the light intensity level to be the third level Light intensity level; if the target distance H is greater than the third threshold H3 and less than or equal to the fourth threshold H4 (H3<H≤H4), the light intensity level is determined to be the fourth light intensity level.

It should be noted that the light intensity level can also be divided into one, two, three or more light intensity levels, and this disclosure does not limit this.

In some embodiments, the light source assembly 33 includes a plurality of Lighting Emitting Diodes (LEDs) 3027 (as shown in Figure 18). The light emitting diode 3027 can emit short wave blue light. The wavelength of the short-wave blue light can be any value within the target wavelength range. For example, the target wavelength range is 400nm to 480nm, or the target wavelength range is 400nm to 420nm. The wavelength of the short-wave blue light can be 400nm, 410nm, 420nm, 440nm, 460nm, or 480nm, etc.

For example, the light coverage angle emitted by the light emitting diode 3027 is any value within 30° to 120°, and the irradiance of the light source assembly 33 is any value within 0.01 mW/cm2 ~ 10 mW/cm2. For example, the light coverage angle is 30°, 45°, 60°, 90° or 120°, and the irradiance of the light source assembly 33 is 0.01mW/cm2, 1mW/cm2, 5mW/cm2, 8mW/cm2 or 10mW/cm2. When the irradiance of the light source assembly 33 is less than 0.01mW/cm2, the short-wave blue light radiation emitted by the light-emitting diode 3027 is too small, and the sterilization effect is low; when the irradiance of the light source assembly 33 is greater than 10mW/cm2, the short-wave blue light emitted by the light-emitting diode 3027 The radiation of short-wave blue light is too large and wastes energy.

It should be noted that the principle of ultraviolet sterilization is: direct ultraviolet rays irradiate microorganisms, causing the deoxyribonucleic acid (DNA) replication and transcription of microorganisms to be interrupted, thereby causing the death of microorganisms. The sterilization principle of short-wave blue light is different from that of ultraviolet rays. The sterilization principle of short-wave blue light is as follows: after the porphyrins in microbial cells are irradiated by blue light with a wavelength in the target wavelength range, the porphyrin compounds undergo electronic transitions and generate hydroxyl radicals, hydrogen peroxide, Or active substances such as singlet oxygen, which act on the cell wall or cell membrane of microorganisms, causing irreversible oxidative damage to microorganisms.

In addition, compared with ions, ozone, ultraviolet rays, catalysts, etc., short-wave blue light has better penetrating performance and can effectively penetrate common packaging materials to sterilize the food 300 inside the storage room 10113 to achieve freshness preservation.

It should be noted that the light emitted by the light-emitting diode 3027 can effectively penetrate packaging materials such as fresh-keeping bags, fresh-keeping boxes, and glass. In this way, when the food 300 has packaging materials, since ultraviolet rays cannot penetrate the packaging materials, sterilization using the light-emitting diodes 3027 is more efficient than ultraviolet sterilization. Therefore, when the food 300 is stored in the storage room 10113, the light source assembly 33 can sterilize and preserve the outer surface of the food 300 and packaging materials; when there is no food 300 in the storage room 10113, the light source assembly 33 can also irradiate the food. The inner surface of the storage chamber 10113 is sterilized to keep the refrigerator 100 healthy and clean.

In some embodiments, multiple light-emitting diodes 3027 are connected in parallel and correspond to different areas in the storage room 10113 respectively. At this time, the controller 40 is also configured to adjust the illumination intensity of the light-emitting diodes 3027 in the corresponding areas according to the target distance H corresponding to the different areas.

Figure 15 is a schematic diagram of a lighting area of a storage compartment in a storage device according to some embodiments.

As shown in Figure 15, the storage room 10113 includes a plurality of sub-areas. The plurality of sub-regions include a first region 1016, a second region 1017, a third region 1018, and a fourth region 1019. The controller 40 controls the light-emitting diodes in the four regions respectively according to the target distance H in the four regions. 3027. Adjust the light intensity E in different areas to sterilize the ingredients 300 at different heights in the drawer 1011.

It should be noted that when the storage room 10113 includes different areas, the sterilization device 30 may include multiple ranging components 35 in order to detect the target distance H corresponding to the different areas. For example, in the case where the storage room 10113 is divided into four different areas, the sterilization device 30 may be provided with four distance measuring components 35 to detect the target distance H in the four areas.

The foregoing description mainly takes the sterilization device 30 including the light source component 33 and the distance measuring component 35 as an example. Of course, in some embodiments, the sterilization device 30 may also include other components to achieve efficient sterilization effects and improve the freshness preservation ability of the refrigerator.

Figure 16 is a structural diagram of another sterilization device according to some embodiments. Figure 17 is an exploded view of a sterilization device according to some embodiments. Figure 18 is an exploded view of a light source assembly in accordance with some embodiments.

In some embodiments, as shown in FIGS. 16 to 18 , the sterilization device 30 includes a third housing 301 .

The third housing 301 is provided on the side (eg, the lower side) of the first cover 1012 close to the drawer 1011 . The third housing 301 can be made of aluminum to improve the heat dissipation effect of the sterilization device 30 .

The sterilization device 30 also includes a support assembly 3026 and a second base plate 39 . The support assembly 3026 is connected to the third housing 301. The second base plate 39 is disposed on a side (lower side) of the support assembly 3026 away from the first cover 1012 and located outside the third housing 301 . For example, the support component 3026 is connected to the second base plate 39 through buckles.

The sterilization device 30 also includes a light source assembly 33 . The light source component 33 is disposed on the second substrate 39, and the light source component 33 is configured to emit short-wave blue light. The wavelength of the short-wave blue light can be found above and will not be described here.

As shown in FIG. 18 , the sterilization device 30 also includes a lampshade 31 , which is installed on the second substrate 39 and covers the light source assembly 33 . For example, the lampshade 31 is snap-connected to the second base plate 39 .

In some embodiments, as shown in Figures 17 and 18, the sterilization device 30 further includes a third sensor (target sensor) 3024. The third sensor 3024 is provided on the second substrate 39 and located in the lampshade 31 . The third sensor 3024 is configured to detect the concentration of microorganisms within the storage chamber 10113 . The third sensor 3024 may continuously detect the concentration of microorganisms, or detect the concentration of microorganisms periodically. For example, the third sensor 3021 starts working once every preset time period. For example, the preset time period is any value within 2h to 6h. For example, the preset time period is 2h, 3h, 4h, 5h or 6h, etc. When the third sensor 3021 is turned on for less than 2 hours, the third sensor 3021 detects the concentration of microorganisms too frequently, and the difference between multiple detection data is small. When the third sensor 3021 is turned on for more than 6 hours, the third sensor 3021 cannot detect the concentration of microorganisms in time, and the food material 300 is prone to deterioration. The third sensor 3024 may be electrically connected to the controller 40 to send the detected microorganism concentration to the controller 40 .

It should be noted that the third sensor 3024 may also include a spectral sensor or a biosensor, or may be other sensors with a function of detecting microbial concentration, which is not limited in this disclosure.

In some embodiments, as shown in FIGS. 16 and 17 , the sterilization device 30 further includes a diffusion assembly 302 .

Figure 19 is an exploded view of a diffusion assembly in accordance with some embodiments. Figure 20 is a structural diagram of the second housing according to some embodiments.

As shown in FIGS. 19 and 20 , the diffusion assembly 302 includes a second housing 3022 and a second cover 3023 . The second cover 3023 may be integrated with the storage chamber 10113. The second housing 3022 is connected to the second cover 3023 through a second connecting member (such as a buckle). The diffusion assembly 302 also includes a diffusion component 3021. The diffusion member 3021 includes a photosensitizer. The diffusion component 3021 is provided in the second housing 3022, and the second housing 3022 is provided with a ventilation hole 30221. The ventilation hole 30221 can be opened or closed, thereby controlling the opening or closing of the diffusion component 302.

For example, as shown in FIG. 20 , the diffusion assembly 302 further includes a first motor 3028 and a rotating plate 30222. The rotating plate 30222 covers the ventilation hole 30221 to close the ventilation hole 30221. The rotating shaft of the first motor 3028 is connected to the rotating plate 30222, and the first motor 3028 is configured to drive the rotating plate 30222 to rotate to open the ventilation hole 30221. When the diffusion component 3021 needs to release the photosensitizer, the first motor 3028 drives the rotating plate 30222 to rotate to open the ventilation hole 30221. In this way, the photosensitizer released by the diffusion component 3021 can be diffused into the storage chamber 10113. The photosensitizer covers the surface of the food material 300 to improve the sterilization efficiency of the sterilization device 30 . When the diffusion component 3021 is not required to release the photosensitizer, the first motor 3028 drives the rotating plate 30222 to rotate to close the ventilation hole 30221.

In some embodiments, the diffusion component 3021 further includes non-woven fabric, and the non-woven fabric can wrap the photosensitizer.

After adding a certain amount of photosensitizer, the output of active substances can be increased, and the sterilization efficiency of the sterilization device 30 can be increased by about half. Therefore, by adding a photosensitizer (such as a porphyrin compound), the irradiation time and quantity of the light source components 33 can be reduced, cost and energy consumption can be reduced. For example, the photosensitizer includes one or more of curcumin, chlorophyll, and riboflavin.

It should be noted that the diffusion assembly 302 can be detachably installed on the first cover 1012 for easy replacement. For example, the diffusion assembly 302 is installed on the first cover 1012 through buckles or sliding rails. In addition, the diffusion component 3021 can be solid, colloid, bulk solid powder, etc., and the diffusion component 3021 has good volatility.

In some embodiments, as shown in FIGS. 16 and 17 , the sterilization device 30 further includes a fan assembly 3025 , and the fan assembly 3025 is configured to perform an air supply operation when the sterilization device 30 is turned on. When the diffusion assembly 302 and the fan assembly 3025 are turned on, the photosensitizer released by the diffusion assembly 302 will diffuse to all corners of the chamber 101 along with the wind direction of the fan assembly 3025. In this way, the coverage area of the photosensitizer can be increased and the sterilization efficiency of the sterilization device 30 can be improved. Effect.

In some embodiments, fan assembly 3025 includes a fan. For example, the fan is fixed (eg, bolted) to the first cover 1012 .

In some embodiments, fan assembly 3025 also includes a sponge. For example, the sponge is adhered to the outside of the fan to protect the fan.

Figure 21 is a cross-sectional view of another storage device according to some embodiments. Figure 22 is another structural diagram of a sterilization device according to some embodiments.

In some embodiments, the support assembly 3026 can rotate to adjust the illumination angle of the light source assembly 33 . In some embodiments, as shown in FIG. 21 , the support assembly 3026 includes a fastener 3030 . As shown in FIG. 22 , the fixing member 3030 is fixed on the third housing 301 . For example, the fixing part 3030 is installed on the bottom of the third housing 301 with screws or buckles, or the fixing part 3030 and the third housing 301 are integrated. The support assembly 3026 also includes a second motor 3029, a rotor 3031 and a rotation shaft 3033. The second motor 3029 is disposed on the side of the fixing member 3030 away from the light source assembly 33 , and the rotating shaft 3033 is disposed on the side of the second motor 3029 close to the second substrate 39 . The sub 3031 is provided at one end of the second rotation shaft 3033 close to the second base plate 39 . The rotation shaft 3033 is configured to drive the rotor 3031 to rotate. Rotor 3031 may be spherical. The support assembly 3026 also includes a rotating member 3032. The rotating member 3032 is connected to the rotor 3031, and the second base plate 39 is fixedly mounted on the rotating member 3032. When the second motor 3029 is working, the rotating shaft 3033 drives the rotor 3031 to rotate, and the rotor 3031 drives the rotating member 3032 to rotate in the horizontal or vertical direction, thereby changing the illumination angle of the light source assembly 33 on the second substrate 39 .

For example, when the light source assembly 33 is turned on, the controller 40 can control the second motor 3029 to drive the light source assembly 33 to rotate within the target angle range. The target angle range can be set in advance.

In some examples, the light source assembly 33 may be rotated in the horizontal direction by any value within the first angle range. For example, the first angle range is 0° to 360°. For example, the rotation angle of the light source assembly 33 along the horizontal direction is 0°, 90°, 180°, 270° or 360°. The light source assembly 33 can be rotated along the vertical direction by any value within the second angle range. For example, the second angle range is 0° to 90°. For example, the rotation angle of the light source assembly 33 in the vertical direction is 0°, 30°, 45°, 60° or 90°.

It should be noted that the above description takes the electric control of the rotation of the light source assembly 33 as an example. Of course, the rotation of the light source assembly 33 can also be controlled manually, and this disclosure is not limiting.

By controlling the rotation of the light source assembly 33, the third sensor 3024 identifies the microbial content and sterilizes and preserves freshness through light irradiation. Since the light source assembly 33 can rotate, and the illumination angle B of the light source assembly 33 is 30° to 120°, the light emitted by the light source assembly 33 can cover the food 300 in the storage room 10113.

Figure 23 is a schematic diagram of a rotation angle of a light source assembly according to some embodiments.

For example, as shown in Figure 23, the light source assembly 33 can be rotated at least three positions to achieve sterilization through light irradiation. For example, when the light source component 33 rotates to the first position M1, the light source component 33 illuminates vertically; when the light source component 33 rotates to the second position M2, the light source component 33 tilts toward the first side (such as the R side in Figure 23). irradiation. When the light source component 33 rotates to the third position M3, the light source component 33 obliquely illuminates the second side (eg, the S side in FIG. 23). It should be noted that the light source assembly 33 can also be rotated to other positions, which is not limited in this disclosure.

In some embodiments, in the case where the sterilization device 30 includes the third sensor 3024 and the diffusion assembly 302, for example, when it is necessary to sterilize the food 300 stored in the refrigerator 100, the controller is configured through the control panel on the refrigerator 100. 40 issues a sterilization instruction. After the controller 40 receives the sterilization instruction, the controller 40 is configured to respond to the sterilization instruction, control the light source assembly 33 to turn on or off, and adjust the illumination parameters of the light source assembly 33 during the turning on process; control the diffusion assembly 302 is turned on or off to adjust the opening duration of the diffusion component 302.

Figure 24 is yet another flowchart of steps performed by a controller according to some embodiments.

For the above-mentioned sterilization device 30 including the third sensor 3024 and the diffusion assembly 302, in some embodiments, as shown in FIG. 24, the controller 40 is configured to perform steps 41 to 44.

In step 41, the current microorganism concentration in the storage chamber 10113 is obtained.

In step 42, it is determined whether the current microorganism concentration is greater than the first concentration threshold. If "Yes", perform step 43; if "No", perform step 44.

In step 43, the light source component 33 and the diffusion component 302 are controlled to be turned on.

In step 44, the diffusion assembly 302 is controlled to close.

The first concentration threshold is set in advance. The first concentration threshold is used to characterize the current concentration of microorganisms in the storage chamber 10113. If the current microbial concentration is greater than the first concentration threshold, it indicates that the microbial concentration value in the storage room 10113 is relatively high. Not only does it need to turn on the light source assembly 33 to emit visible short-wave blue light, it will affect the storage room 10113 and the food materials 300 inside. For disinfection, it is also necessary to open the diffusion component 302 to diffuse the photosensitizer so that the surface of the storage room 10113 and the food materials 300 inside is covered with the photosensitizer, thereby improving the visible short-wave blue light's ability to remove the storage room 10113 and the food materials 300 inside. Bacterial effect. If the current microorganism concentration is less than or equal to the first concentration threshold, there is no need to turn on the diffusion component 302. Therefore, the controller 40 can control the diffusion component 302 to turn off, and determine whether to turn on the light source component 33 or turn off the light source component 33 according to the current microorganism concentration.

Figure 25 is yet another flowchart of steps performed by a controller in accordance with some embodiments.

In some embodiments, as shown in FIG. 25 , after step 43 , the controller 40 is further configured to perform step 45 .

In step 45, under the condition that the diffusion assembly 302 is controlled to be turned on, the fan assembly 3025 is controlled to be turned on.

When the diffusion assembly 302 is turned on, the fan assembly 3025 is controlled to turn on to perform a preset air supply operation, so that the photosensitizer released by the diffusion assembly 302 can be transported to every corner of the storage room 10113 with the fan assembly 3025, improving the storage room. The photosensitizer covers the surface of 10113 and the food material 300 inside, thereby improving the sterilization effect.

Figure 26 is yet another flowchart of steps performed by a controller according to some embodiments.

In some embodiments, as shown in Figure 26, step 43 includes step 431 and step 432.

In step 431, a target opening duration corresponding to the current microorganism concentration is determined based on the preset corresponding relationship between the microorganism concentration and the opening duration of the diffusion component 302.

In step 432, the diffusion component 302 is controlled to turn on for a target turn-on duration.

The corresponding relationship between the microorganism concentration and the opening time of the diffusion component 302 is set in advance. For example, a table representing the corresponding relationship between the concentration of microorganisms and the opening duration of the diffusion component 302 is stored in the corresponding memory, so that the controller 40 can obtain it by looking up the table. Moreover, there is a positive correlation between the concentration of microorganisms and the opening time of the diffusion component 302 . In this way, when the microbial concentration is greater than the first concentration threshold, the higher the microbial concentration in the storage chamber 10113, the longer the opening time of the diffusion component 302; the lower the microbial concentration in the storage chamber 10113, the corresponding The activation time of the diffusion component 302 is shorter.

For example, when the concentration of microorganisms is greater than the first concentration threshold, after the controller 40 controls the activation of the light source assembly 33 and the diffusion assembly 302, the controller 40 determines the target opening duration of the diffusion assembly 302 based on the microorganism concentration value, and controls the diffusion assembly 302 is turned on, and after reaching the target turn-on duration, the controller 40 controls the diffusion component 302 to turn off.

Figure 27 is yet another flowchart of steps performed by a controller in accordance with some embodiments.

In some embodiments, as shown in Figure 27, after step 41 and before step 42, the controller is further configured to perform steps 47 to 49.

In step 47, it is determined whether the current microorganism concentration is greater than the second concentration threshold. If "Yes", perform step 48; if "No", perform step 49.

In step 48, the light source assembly 33 is controlled to be turned on.

In step 49, the light source assembly 33 is controlled to be turned off.

The second concentration threshold is set in advance, and the second concentration threshold is less than or equal to the first concentration threshold. If the current microbial concentration is greater than the second concentration threshold, it indicates that the microbial concentration value is high, and the light source assembly 33 needs to be turned on to sterilize the storage room 10113 and the food materials 300 inside; if the current microbial concentration is less than or equal to the The second concentration threshold value indicates that the microorganism concentration value is low and there is no need to perform sterilization operation, and the controller controls the light source assembly 33 to turn off.

In some embodiments of the present disclosure, if the current microorganism concentration value is low, for example, the current microorganism concentration is less than or equal to the second concentration threshold, then the sterilization device 30 does not need to perform a sterilization operation, and the controller 40 controls the light source assembly 33 and diffusion. The components 302 are respectively closed. If the current microorganism concentration value is higher, for example, when the current microorganism concentration is greater than the second concentration threshold, the controller 40 controls the light source component 33 to turn on for sterilization, and controls the diffusion component 302 to close. If the current microorganism concentration If the concentration value is higher, for example, the current microorganism concentration is greater than the first concentration threshold, the controller 40 controls the light source component 33 and the diffusion component 302 to be opened respectively to improve the sterilization effect of the sterilization device 30 .

Figure 28 is yet another flowchart of steps performed by a controller in accordance with some embodiments.

In some embodiments, as shown in Figure 28, step 48 includes step 481 and step 482.

In step 481, the target illumination parameter corresponding to the current microorganism concentration is determined according to the preset correspondence relationship between the microorganism concentration and the illumination parameter of the light source assembly 33.

The target illumination parameters include target illumination intensity and target illumination duration.

In step 482, the light source component 33 is controlled to start and run for a target illumination duration according to the target illumination intensity.

The corresponding relationship between the concentration of microorganisms and the illumination parameters of the light source assembly 33 is set in advance. For example, a table representing the corresponding relationship between the concentration of microorganisms and the illumination parameters of the light source assembly 33 is stored in the corresponding memory, so that the controller 40 can obtain it by looking up the table. The illumination parameters include illumination intensity and illumination duration. The correspondence between the microorganism concentration and the illumination parameters of the light source assembly 33 includes the correspondence between the microorganism concentration and the illumination intensity of the light source assembly 33 , and the correspondence between the microorganism concentration and the illumination duration of the light source assembly 33 . .

In the above two corresponding relationships, the concentration of microorganisms is positively correlated with the illumination intensity and illumination duration of the light source assembly 33 respectively. In this way, when the microorganism concentration is greater than the second concentration threshold, the higher the microorganism concentration in the storage chamber 10113, the greater the illumination intensity of the corresponding light source assembly 33, and the longer the illumination duration; the microorganisms in the storage chamber 10113 The lower the concentration, the smaller the illumination intensity of the corresponding light source component 33 and the shorter the illumination duration.

For example, when the concentration of microorganisms is greater than the second concentration threshold, the controller 40 controls the light source assembly 33 to turn on, the controller 40 determines the target illumination intensity and the target illumination duration of the light source assembly 33 according to the microorganism concentration value, and controls the light source assembly 33 It is turned on to emit short-wave blue light with the target illumination intensity. After reaching the target illumination duration, the light source component 33 is controlled to turn off.

It should be noted that when the light source assembly 33 includes multiple light-emitting diodes 3027, the number of turned-on light-emitting diodes 3027 has a positive correlation with the illumination intensity.

Figure 29 is yet another flowchart of steps performed by a controller according to some embodiments.

In this case, as shown in Figure 29, step 482 includes step 4820.

In step 4820, the number of light-emitting diodes 3027 corresponding to the target illumination intensity is controlled to turn on the target illumination duration.

It can be understood that the corresponding relationship between the microorganism concentration and the illumination intensity of the light source assembly 33 is the corresponding relationship between the microorganism concentration and the number of turned-on light-emitting diodes 3027 . For example, when the current concentration of microorganisms is greater than the second concentration threshold, the controller 40 determines that the light source assembly 33 is activated. The controller 40 determines the number of turned-on light-emitting diodes 3027 in the light source assembly 33 based on the current concentration of microorganisms, thereby emitting light in accordance with the above-mentioned second concentration threshold. Shortwave blue light at target light intensity.

In some embodiments, the controller 40 is further configured to: if it is determined that the microorganism concentration is in the first concentration range, control the light source component 33 and the diffusion component 302 to turn off respectively; if it is determined that the microorganism concentration is in the second concentration range, control the light source component 33 to The length of time the first light intensity illuminates the first target.

If it is determined that the microorganism concentration is in the third concentration range, the light source component 33 is controlled to illuminate the second target duration with the second light intensity, and the diffusion component 302 is controlled to turn on the third target duration; if it is determined that the microorganism concentration is in the fourth concentration range, the light source component 33 is controlled to The third light intensity illuminates the fourth target duration, and the diffusion component 302 is controlled to turn on the fifth target duration. The turning on time of the light source assembly 33 in each sterilization cycle is the same as the time when the diffusion component 3021 releases the photosensitizer. For example, the second target duration is the same as the third target duration, and the fourth target duration is the same as the fifth target duration.

It should be noted that the corresponding light intensity can be achieved by controlling the number of light-emitting diodes 3027 turned on. The first illumination intensity is less than or equal to the second illumination intensity, and the second illumination intensity is less than or equal to the third illumination intensity. For example, the first illumination intensity corresponds to the first number of light-emitting diodes 3027, the second illumination intensity corresponds to the second number of light-emitting diodes 3027, and the third illumination intensity corresponds to the third number of light-emitting diodes 3027.

For example, the first number is any value between 1 and 2. For example, the first number is 1 or 2. The first target duration is any value within the first time period (1min to 10min). For example, the first target duration is 1 min, 3 min, 5 min, 8 min or 10 min.

For example, the second number is any value between 2 and 4. For example, the second number is 2, 3 or 4. The second target duration and the third target duration are any values within the second time period (10min to 60min) respectively. For example, the second target duration is 10min, 20min, 30min, 40min or 60min.

For example, the third number is any value between 4 and 6. For example, the third number is 4, 5 or 6. The fourth target duration and the fifth target duration are any values within the third time period (60min to 120min) respectively. For example, the fifth target duration is 60min, 80min, 90min, 100min or 120min.

Here, the microorganism concentration corresponding to the first concentration range is greater than 0 and less than or equal to the second concentration threshold. The microorganism concentration corresponding to the second concentration range is greater than the second concentration threshold and less than or equal to the first concentration threshold. The microorganism concentration corresponding to the third concentration range is greater than the first concentration threshold and less than or equal to the first concentration threshold. is equal to the third concentration threshold, and the microorganism concentration corresponding to the fourth concentration range is greater than the third concentration threshold.

Furthermore, the third concentration threshold is greater than the first concentration threshold, and the first concentration threshold is greater than the second concentration threshold. For example, the first concentration threshold is 1×10 ⁵ CFU/g, the second concentration threshold is 1×10 ⁴ CFU/g, and the third concentration threshold is 1×10 ⁶ CFU/g.

It should be noted that after each sterilization cycle ends, the controller 40 controls the third sensor 3024 to re-identify the current microorganism concentration.

The above description mainly takes the concentration ranges of four microorganisms as an example. Of course, the concentration ranges of microorganisms can also be divided more finely, and the on/off status of the light source component 33, the illumination parameters of the light source component 33, and the diffusion component 302 can be set accordingly. This disclosure does not limit the switch state and the opening time.

In some embodiments, the refrigerator 100 further includes a prompt device. For example, the prompting device includes a plurality of LED indicator lights, and the LED indicator lights indicate the freshness levels of different ingredients 300 by lighting up lights of different colors. For example, the light color corresponding to the first-level freshness is green, the light color corresponding to the second-level freshness is blue, the light color corresponding to the third-level freshness is orange, and the light color corresponding to the fourth-level freshness is red.

For example, if the current microbial concentration is within the first concentration range, the freshness level of the food material 300 is set to the first-level freshness. If the current microbial concentration is within the second concentration range, the freshness level of the food material 300 is set to For the second-level freshness, if the current microbial concentration is within the third concentration range, the freshness level of the food material 300 is set to the third-level freshness. If the current microbial concentration is within the fourth concentration range, the freshness level of the food material 300 is set. The freshness level is the fourth level of freshness.

It should be noted that the higher the freshness level of the food material 300 is, the worse the freshness of the food material 300 is.

The prompt device also includes a buzzer. If the current microorganism concentration is at the first level of freshness, the second level of freshness or the third level of freshness, the buzzer will not sound a buzzer alarm respectively. If the current level of microbial concentration is at the fourth level of freshness, the buzzer will not sound the alarm. , the food material 300 is not fresh, the buzzer sounds a buzzer, indicating that microorganisms exceed the standard. The buzzer sounds several times and then turns off, turning into an indicator light alarm. At this time, the indicator light flashes, and then stops after flashing several times. Change to always-on display. The indicator light can also display the sterilization process. For example, during the sterilization process, the indicator light flashes in a running water manner. After each sterilization process is completed, the indicator lights all remain on.

In some embodiments, as shown in FIG. 30 , the controller 40 is further configured to perform steps 51 and 52 .

In step 51, the freshness level of the food material 300 stored in the storage chamber 10113 is determined based on the current microbial concentration.

In step 52, the prompt device is controlled to push corresponding prompt information according to the freshness level of the food material 300.

The step numbers in some embodiments of the present disclosure are only for convenience in describing some embodiments of the present disclosure and cannot be understood as limiting the order of the steps. The execution order of the steps can be specifically determined according to actual needs and is not limited to the order of steps in some embodiments of the present disclosure.

Some embodiments of the present disclosure also provide a sterilization control method for a refrigerator. The structure of the refrigerator is similar to the above-mentioned refrigerator 100 . For example, the refrigerator includes a door, a storage device, a controller, a sterilization device, etc. The sterilization device includes a light source component 33, a distance measuring component 35, and the like.

The method includes: obtaining the status of the door 200 and the status of the drawer 1011; when the door 200 is opened and the drawer 1011 is closed, controlling the sterilization device 30 to open for a first preset time and then close; when the door 200 is closed, the drawer 1011 When closed, the sterilizing device 30 is controlled to open; when the door 200 is opened and the drawer 1011 is opened, the sterilizing device 30 is controlled to close.

In some embodiments, when the door 200 is opened and the drawer 1011 is closed, controlling the sterilization device 30 to open after the first preset time includes: determining that the door 200 is closed and the drawer 1011 is closed; obtaining the target distance H, and According to the target distance H, the light intensity level is determined; the sterilization device 30 is controlled to turn on for a first preset time at the determined light intensity level and then turn off. When the door 200 is closed and the drawer 1011 is closed, controlling the opening of the sterilization device 30 includes: determining that the door 200 is open and the drawer 1011 is closed; obtaining the target distance H, and determining the light intensity level according to the target distance H; and controlling sterilization. The device 30 is switched on at a certain light intensity level.

In some embodiments, before obtaining the target distance H and determining the light intensity level based on the target distance H, the method further includes: determining the light intensity range based on the preset distance range and the target formula; The distance range and the light intensity range determine one or more preset distance intervals and the light intensity level corresponding to the preset distance intervals.

Some embodiments of the present disclosure also provide a sterilization control method for a refrigerator. The structure of the refrigerator is similar to the above-mentioned refrigerator 100 . For example, the refrigerator includes a door, a storage device, a controller, a sterilization device, etc. The sterilization device includes a light source component 33, a diffusion component 302, a third sensor 3024, a fan component 3025, etc.

The method includes: obtaining the current concentration of microorganisms in the storage room 10113; if the current concentration of microorganisms is greater than the first concentration threshold, controlling the light source component 33 and the diffusion component 302 to turn on respectively; if the current concentration of microorganisms is less than or equal to the first concentration threshold, controlling the diffusion Component 302 is closed.

In some embodiments, after controlling the light source assembly 33 and the diffusion assembly 302 to respectively turn on, the method further includes: controlling the fan assembly 3025 to turn on when the diffusion assembly 302 is controlled to turn on.

In some embodiments, the method further includes: if the current microorganism concentration is greater than the first concentration threshold, determining a target opening duration corresponding to the current microorganism concentration according to the preset correspondence relationship between the microorganism concentration and the opening duration of the diffusion component 302; control The diffusion component 302 is turned on for a target duration.

In some embodiments, after obtaining the current microorganism concentration in the storage chamber 10113 and before determining the relationship between the current microorganism concentration and the first concentration threshold, the method further includes: if the current microorganism concentration is greater than the second concentration threshold, control The light source component 33 is turned on; if the current microorganism concentration is less than or equal to the second concentration threshold, the light source component 33 is controlled to be turned off.

In some embodiments, if the current microorganism concentration is greater than the second concentration threshold, the method further includes: determining the target illumination parameter corresponding to the current microorganism concentration according to the preset correspondence relationship between the microorganism concentration and the illumination parameter of the light source assembly 33; controlling The light source assembly 33 is started and runs for the target illumination duration according to the target illumination intensity.

In some embodiments, controlling the light source assembly 33 to start and run the target illumination duration according to the target illumination intensity includes: controlling a number of light-emitting diodes 3027 corresponding to the target illumination intensity to turn on the target illumination duration.

In some embodiments, the method further includes: determining the freshness level of the food material 300 stored in the storage room 10113 based on the current microbial concentration; and controlling the prompt device to push corresponding prompt information based on the freshness level of the food material 300 .

Those skilled in the art will understand that the scope of the present disclosure is not limited to the specific embodiments described above, and certain elements of the embodiments may be modified and replaced without departing from the spirit of the application. The scope of the application is limited by the appended claims.

Claims

A refrigerator including:

Box, including chamber;

A door body located at the opening of the chamber;

Storage device, the storage device includes:

A first housing located in the chamber;

A first cover plate is provided on the housing; and

A drawer is provided in the housing, the drawer is configured to accommodate food ingredients;

A sterilization device is provided on the first cover plate, and the sterilization device includes:

a light source assembly configured to emit short-wave blue light to illuminate the food materials in the drawer for sterilization; and

a distance measuring component configured to detect a target distance between the food material and the sterilization device; and

Controller, configured as:

When the door is opened and the drawer is closed, the sterilization device is controlled to be turned on for a first preset time and then closed;

When the door is closed and the drawer is closed, control the sterilization device to open;

When the door is open and the drawer is open, control the sterilization device to close; and

Determine the light intensity level according to the target distance, and control the sterilization device to perform sterilization at the light intensity level;

Wherein, the state of the door includes opening and closing of the door, and the state of the drawer includes opening and closing of the drawer.
The refrigerator according to claim 1, further comprising:

A first sensing component is provided at the connection between the door and the box, and is configured to detect the state of the door; and

The second sensing component is provided at the connection between the drawer and the first housing, and is configured to detect the status of the drawer.
The refrigerator according to claim 1 or 2, wherein before determining the light intensity level according to the target distance, the controller is further configured to:

Determine the light intensity range based on the preset distance range and target formula;

Determine at least one preset distance interval and the light intensity level corresponding to the preset distance interval according to the preset distance range and the light intensity range,

Wherein, the target formula is related to the target distance.
The refrigerator according to any one of claims 1 to 3, wherein the controller is further configured to:

When the sterilization device is turned on, control the sterilization device to perform sterilization in the first mode or the second mode;

Wherein, in the first mode, the controller controls the light source component to irradiate intermittently; in the second mode, the controller controls the light source component to continue irradiating for a second preset time and then stops.
The refrigerator of claim 4, wherein the controller is further configured to:

When the sterilization device is in the first mode, if the target distance is greater than 0 and less than or equal to the first threshold, the light intensity level is determined to be the first level light intensity level; if the target distance is greater than the If the first threshold value is greater than or equal to the second threshold value, the light intensity level is determined to be the secondary light intensity level; if the target distance is greater than the second threshold value and less than or equal to the third threshold value, the light intensity level is determined to be the second threshold value. The level is a third-level light intensity level; if the target distance is greater than the third threshold and less than or equal to the fourth threshold, it is determined that the light intensity level is a fourth-level light intensity level;

When the sterilization device is in the second mode, if the target distance is greater than 0 and less than or equal to the first threshold, the light intensity level is determined to be the first level light intensity level; if the target distance is greater than If the first threshold is less than or equal to the second threshold, it is determined that the light intensity level is a secondary light intensity level; if the target distance is greater than the second threshold and less than or equal to the third threshold, it is determined that the The light intensity level is a third-level light intensity level; if the target distance is greater than the third threshold and less than or equal to the fourth threshold, it is determined that the light intensity level is a fourth-level light intensity level.
The refrigerator according to any one of claims 1 to 5, wherein the drawer includes a storage compartment, the storage compartment includes a plurality of sub-regions, the light source assembly includes a plurality of light-emitting diodes, the plurality of light-emitting diodes are connected to The multiple sub-areas are set correspondingly, and the controller is also configured to:

According to the target distance corresponding to different sub-regions, the illumination intensity of the corresponding light-emitting diodes is adjusted respectively.
The refrigerator according to any one of claims 1 to 6, wherein an inner surface of the drawer protrudes in a direction away from the first housing to form a slightly convex surface, and the slightly convex surface is configured to diverge. The light emitted by the light source component.
The refrigerator according to claim 1, wherein the drawer includes a storage chamber, and the sterilization device further includes:

Diffusion components, which include:

a diffusion component, the diffusion component including a photosensitizer;

the second housing; and

a second cover plate, the second cover plate is connected to the second housing;

Wherein, the diffusion component is configured to diffuse the photosensitizer into the storage room when the sterilization device is turned on.
The refrigerator according to claim 8, wherein the sterilization device further includes: a target sensor configured to detect the current concentration of microorganisms in the storage chamber;

The controller configuration is:

Obtain the current microbial concentration in the storage room;

If the current microorganism concentration is greater than the first concentration threshold, control the light source component and the diffusion component to turn on;

If the current microorganism concentration is less than or equal to the first concentration threshold, the diffusion component is controlled to be closed.
The refrigerator of claim 9, wherein, after determining that the current microorganism concentration is greater than the first concentration threshold, the controller is further configured to:

According to the corresponding relationship between the preset microorganism concentration and the opening time of the diffusion component, determine the target opening time corresponding to the current microorganism concentration;

Control the diffusion component to turn on the target for a duration.
The refrigerator according to claim 9 or 10, wherein, after obtaining the current microorganism concentration in the storage room and before determining a relationship between the current microorganism concentration and the first concentration threshold, the The controller described above is also configured to:

If the current microorganism concentration is greater than the second concentration threshold, control the light source component to turn on;

If the current microorganism concentration is less than or equal to the second concentration threshold, control the light source component to turn off;

Wherein, the second concentration threshold is less than or equal to the first concentration threshold.
The refrigerator of claim 11, wherein after determining that the current microorganism concentration is greater than a second concentration threshold, the controller is further configured to:

Determine the target lighting parameters corresponding to the current microorganism concentration according to the corresponding relationship between the preset microorganism concentration and the lighting parameters of the light source assembly, wherein the target lighting parameters include target lighting intensity and target lighting duration;

The light source assembly is controlled to run the target illumination duration at the target illumination intensity.
The refrigerator according to claim 12, wherein the light source assembly includes a plurality of light-emitting diodes, and the target corresponding to the current microorganism concentration is determined according to the corresponding relationship between the preset microorganism concentration and the illumination parameters of the light source assembly. After lighting parameters, the controller is also configured to:

Control a number of the light-emitting diodes corresponding to the target illumination intensity to turn on the target illumination duration.
The refrigerator of claim 13, wherein the controller is further configured to:

If it is determined that the current microorganism concentration is in the first concentration range, control the light source component and the diffusion component to turn off respectively;

If it is determined that the current microorganism concentration is in the second concentration range, control the light source component to illuminate the first target with the first light intensity for a duration;

If it is determined that the current microorganism concentration is in the third concentration range, control the light source component to illuminate the second target duration with the second light intensity, and control the diffusion component to turn on the third target duration;

If it is determined that the current microorganism concentration is in the fourth concentration range, control the light source component to illuminate the fourth target duration with a third light intensity, and control the diffusion component to turn on the fifth target duration;

Wherein, the first illumination intensity is less than or equal to the second illumination intensity, and the second illumination intensity is less than or equal to the third illumination intensity.
The refrigerator according to any one of claims 8 to 14, wherein the sterilization device further includes a fan assembly, and the controller is further configured to:

When the diffusion assembly is turned on, the fan assembly is controlled to turn on.
The refrigerator according to any one of claims 8 to 15, wherein the refrigerator further includes a prompt device, and the controller is further configured to:

Determine the freshness level of items stored in the storage room based on the current microbial concentration;

According to the freshness level of the item, the prompt device is controlled to push corresponding prompt information.
The refrigerator according to any one of claims 1 to 16, wherein the storage device further includes a reflective film, the reflective film Disposed on the inner surface of the drawer, the reflective film is configured to reflect the light emitted by the light source assembly.
The refrigerator according to any one of claims 1 to 17, wherein the illumination angle of the light source assembly is any value from 30° to 120°, and the wavelength of the short-wave blue light is any one from 400 nm to 480 nm. value, the irradiance of the light source is any value from 0.01mW/ cm2 to 10mW/ cm2 .
A sterilization control method for a refrigerator, wherein the refrigerator includes:

Box, including chamber;

A door body located at the opening of the chamber;

Storage device, the storage device includes:

A first housing located in the chamber;

A first cover plate is provided on the housing; and

a drawer disposed within the housing, the drawer being configured to accommodate items;

A sterilization device is provided on the first cover plate, and the sterilization device includes:

a light source assembly configured to emit short-wave blue light to illuminate items in the drawer for sterilization; and

a distance measuring component configured to detect a target distance between the item and the sterilization device; and

controller;

The methods include:

When the door is opened and the drawer is closed, the sterilization device is controlled to be turned on for a first preset time and then closed;

When the door is closed and the drawer is closed, control the sterilization device to open;

When the door is open and the drawer is open, control the sterilization device to close; and

Determine the light intensity level according to the target distance, and control the sterilization device to perform sterilization at the light intensity level;

Wherein, the state of the door includes opening and closing of the door, and the state of the drawer includes opening and closing of the drawer.
A sterilization control method for a refrigerator, wherein the refrigerator includes:

Box, including chamber;

A door body located at the opening of the chamber;

Storage device, the storage device includes:

A first housing located in the chamber;

A first cover plate is provided on the housing; and

a drawer disposed within the housing, the drawer including a storage compartment, the drawer being configured to accommodate items;

A sterilization device is provided on the first cover plate, and the sterilization device includes:

a light source assembly configured to emit short-wave blue light to illuminate items in the drawer for sterilization; and

Diffusion component, the diffusion component includes a diffusion component, a second housing and a second cover, the diffusion component includes a photosensitizer, the diffusion component is configured to, when the sterilization device is turned on, the Diffusion of photosensitizer into the storage chamber; and

a target sensor configured to detect a current concentration of microorganisms within the storage chamber; and

controller;

The methods include:

Obtain the current microbial concentration in the storage room;

If the current microorganism concentration is greater than the first concentration threshold, control the light source component and the diffusion component to turn on respectively;

If the current microorganism concentration is less than or equal to the first concentration threshold, the diffusion component is controlled to be closed.