Refrigerator

Abstract

The refrigerator comprises a refrigerator body, a door closing detection assembly and a degerming and odor removing device, the degerming and odor removing device comprises a shell, a light source input device, a light source port, a photocatalyst catalysis module and a photocatalyst driving part, and the photocatalyst driving part drives the photocatalyst catalysis module to move; when the first signal is received, the light source input device is connected with a power source, and the photocatalyst driving part drives the photocatalyst catalysis module to move so that the center of the photocatalyst catalysis module can coincide with the vertical projection of the light source output device. The photocatalyst catalysis module generates ion clusters under the light source action of the light source input device so as to purify the corresponding storage space; and when the second signal is received, the power supply connected with the light source input device is connected, and the photocatalyst driving part drives the photocatalyst catalyzing module to be far away from the light source input device, so that the light source of the light source input device can irradiate the storage space through the light source port to sterilize the storage space and / or the food materials.

Description

Technical Field

[0001] The present invention relates to the technical field of household appliances, and in particular to a refrigerator. Background Art

[0002] At present, users have higher and higher requirements for the sterilization and purification of refrigerators. The main sterilization and purification technologies currently used in refrigerators include: ion technology, ultraviolet light, photocatalyst, etc. Among them, ion technology can take into account both sterilization and purification, but its sterilization and purification function depends on the ozone produced. High ozone concentration has sterilization and purification effects, but the advantage of low ozone concentration is that the sterilization and purification effect of ozone concentration below the human safety line or sensory threshold is poor. Ultraviolet light sterilization technology and photocatalyst purification technology are the more commonly used sterilization and purification technologies for refrigerators due to their low cost. Ultraviolet light sterilization technology has a high surface bacteria removal effect, but no purification effect; photocatalyst technology has a purification effect, but no surface bacteria sterilization effect.

[0003] In summary, the sterilization and purification technologies commonly used in refrigerators currently have certain defects in the comprehensive effects of sterilization and purification.

[0004] In view of this, this application is filed. Summary of the invention

[0005] The present application provides a refrigerator in which a sterilization and purification device is provided, by setting a photocatalyst catalytic module to a mobile design and changing the relative position between the photocatalyst catalytic module and a light source input device, thereby solving the problem that ordinary light sterilization technology has no purification effect and ordinary photocatalyst purification has no surface bacteria removal function. Sterilization (surface attached bacteria) and compartment purification can be taken into account at the same time and the cost is relatively low.

[0006] To this end, the present application is intended to provide a refrigerator, comprising:

[0007] A box body, wherein at least one storage space is formed inside the box body;

[0008] A box door, which is used to open or close the box;

[0009] A door closing detection component, which is arranged on the box door or the box body and is used to detect the state of the storage space;

[0010] A sterilization and purification device, which is used to sterilize or purify the storage space in which it is located;

[0011] A controller, the controller is electrically connected to the door closing detection component and the sterilization and purification device;

[0012] The sterilization and purification device includes:

[0013] A shell body is disposed in the storage space, and the shell body includes an air inlet and an air outlet disposed along a length direction thereof;

[0014] A light source input device, which is arranged in the housing and is used to output light sources of different wavelengths;

[0015] A light source opening, which is an opening arranged opposite to the light source input device;

[0016] A photocatalyst catalytic module is movably arranged in the housing. The photocatalyst catalytic module is arranged on a side of the light source input device close to the light source opening. The photocatalyst catalytic module can be moved to shield the light source opening. The photocatalyst catalytic module can react to generate ion groups under the action of the light source.

[0017] A photocatalyst driving component, which is connected to the photocatalyst catalytic module and is used to drive the photocatalyst catalytic module to move along the length direction of the shell to adjust the function of the sterilization and purification device;

[0018] The controller is configured such that, when receiving the first signal, the power photocatalyst driving component connected to the light source input device drives the photocatalyst catalytic module to move so that its center coincides with the vertical projection of the light source output device, and the photocatalyst catalytic module generates an ion group under the action of the light source of the light source input device to purify the corresponding storage space;

[0019] When the second signal is received, the power supply of the light source input device is connected, and the photocatalyst driving component drives the photocatalyst catalytic module away from the light source input device, so that the light source of the light source input device can illuminate the storage space through the light source opening to sterilize the storage space and / or food.

[0020] In some embodiments of the present application, the controller is configured such that, when receiving the third signal, the photocatalyst driving component drives the photocatalyst catalytic module to move, so that the photocatalyst catalytic module can generate an ion group under the action of the light source of the light source input device to purify the corresponding storage space;

[0021] At the same time, part of the light source of the light source input device can illuminate the storage space through the light source opening to sterilize the storage space and / or food.

[0022] In some embodiments of the present application, a sliding space is provided on one side of the housing, and the sliding space is provided along the length direction of the housing;

[0023] The photocatalyst driving component further comprises

[0024] A motor is disposed in the housing;

[0025] The motor rod is arranged at the driving end of the motor and electrically drives the electrode rod to rotate;

[0026] A gear is connected to the motor rod, and the gear can rotate along with the motor rod;

[0027] A rack, the rack is meshed and connected with the gear, and the rack is also connected with the photocatalyst module;

[0028] The controller is configured to control the motor to start, the motor drives the gear to rotate, and the rack drives the photocatalyst catalysis module to move along the length direction of the shell, thereby realizing the position switching of the photocatalyst catalysis module to change the relative position of the photocatalyst catalysis module and the light source input device.

[0029] In some embodiments of the present application, the photocatalyst catalysis module includes:

[0030] A substrate plate, which is movably disposed in the housing and connected to the rack;

[0031] The photocatalyst layer is wrapped around the outer surface of the substrate plate. The air in the storage space enters the shell through the air inlet, flows through the photocatalyst layer, and then flows back to the storage space through the air outlet.

[0032] In some embodiments of the present application, it also includes:

[0033] A built-in fan is provided in the storage space and on one side of the sterilization and purification device to accelerate the airflow in the storage space;

[0034] The controller is configured to turn on the built-in fan when the photocatalyst catalysis module can generate ion groups under the action of the light source of the light source input device.

[0035] In some embodiments of the present application, the controller is configured to cut off the power supply of the light source input device when the door closing detection component detects that the box is in an open state during the period when the photocatalyst catalytic module generates ion groups or when the light source is used for sterilization.

[0036] In some embodiments of the present application, the storage space can be configured as a refrigerator, a drawer, or a temperature-changing room.

[0037] In some embodiments of the present application, the light source input device can output 220nm-280nm ultraviolet light and / or 400nm-420nm short-wave blue light.

[0038] In some embodiments of the present application, the shell is mounted on the top of the storage space by snap-fitting or screwing.

[0039] The present application also proposes a refrigerator, comprising:

[0040] A box body, wherein at least one storage space is formed inside the box body;

[0041] A box door, which is used to open or close the box;

[0042] A door closing detection component, which is arranged on the box door or the box body and is used to detect the state of the storage space;

[0043] A sterilization and purification device, which is used to sterilize or purify the storage space in which it is located;

[0044] A controller, the controller is electrically connected to the door closing detection component and the sterilization and purification device;

[0045] The sterilization and purification device includes:

[0046] A shell body is disposed in the storage space, and the shell body has a shell body and an air inlet and an air outlet communicated with the shell body;

[0047] A sliding space, the sliding space is arranged along the length direction of the shell;

[0048] A light source input device, which is arranged in the housing and is used to output light sources of different wavelengths;

[0049] A light source opening, which is an opening arranged opposite to the light source input device;

[0050] A photocatalyst catalytic module is movably arranged in the housing, and the photocatalyst catalytic module can react to generate ion groups under the action of a light source;

[0051] An operating unit connected to the photocatalyst catalysis module and used to drive the photocatalyst catalysis module to block the light source of the light source output device from irradiating the corresponding storage space;

[0052] The controller is configured to connect the power supply of the light source input device after receiving the first signal or the second signal;

[0053] When the operating part drives the photocatalyst catalytic module to move so that its center coincides with the vertical projection of the light source output device, the photocatalyst catalytic module generates ion groups under the action of the light source of the light source input device to purify the corresponding storage space;

[0054] When the operating part drives the photocatalyst module away from the light source input device, the light source of the light source input device can irradiate the storage space through the light source opening to sterilize the storage space and / or food.

[0055] In the above embodiment, the refrigerator includes a cabinet, a cabinet door for opening or closing the cabinet, a door closing detection component for detecting the switch state of the cabinet, a sterilization and purification device for sterilizing or purifying the cabinet, and a controller, and the sterilization and purification device further includes: a shell with an air inlet and an air outlet, a light source input device, a light source port, a photocatalyst catalytic module and a photocatalyst driving component, the photocatalyst driving component drives the photocatalyst catalytic module to move to change the relative position between the photocatalyst catalytic module and the light source input device, and the controller is configured such that when receiving a first signal, the power source photocatalyst driving component connected to the light source input device drives the photocatalyst catalytic module to move so that its center coincides with the vertical projection of the light source output device, and the photocatalyst catalytic module generates an ion group under the action of the light source of the light source input device to purify the corresponding storage space;

[0056] When the second signal is received, the power supply of the light source input device is connected, and the photocatalyst driving component drives the photocatalyst catalytic module away from the light source input device, so that the light source of the light source input device can illuminate the storage space through the light source opening, so that

[0057] Sterilize storage space and / or food.

[0058] The photocatalyst catalytic module is driven to move by the photocatalyst driving component to change the relative position between the photocatalyst catalytic module and the light source input device, and the cleaning type of the sterilization and purification device is adjusted. Sterilization and purification can be taken into account at the same time, and a full range of sterilization and purification functions can be provided for home appliances such as refrigerators. BRIEF DESCRIPTION OF THE DRAWINGS

[0059] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0060] Figure 1 is a schematic structural diagram of a refrigerator provided according to an exemplary embodiment;

[0061] Figure 2 A schematic structural diagram of a sterilization and purification device for a refrigerator according to an exemplary embodiment when the substrate plate is porous ceramic;

[0062] Figure 3 is a schematic structural diagram of a sterilization and purification device for a refrigerator according to an exemplary embodiment when the base plate is cloth;

[0063] Figure 4 is another structural schematic diagram of a refrigerator sterilization and purification device according to an exemplary embodiment when the base plate is cloth;

[0064] Figure 5 An exploded view of a sterilization and purification device for a refrigerator according to an exemplary embodiment when the base plate is cloth;

[0065] Figure 6 An exploded view of a refrigerator sterilization and purification device according to an exemplary embodiment when the substrate plate is porous ceramic;

[0066] Figure 7 It is a structural schematic diagram of the center of the photocatalytic module and the vertical projection of the light source input device overlap according to an exemplary embodiment;

[0067] Figure 8 It is a structural schematic diagram of a photocatalyst catalysis module far away from a light source input device according to an exemplary embodiment;

[0068] Fig. 9 is a schematic structural diagram of another photocatalyst catalysis module proposed according to an exemplary embodiment;

[0069] Fig.10 is another structural schematic diagram of another photocatalyst catalysis module proposed according to an exemplary embodiment;

[0070] Fig.11 Another photocatalyst module explosion according to an exemplary embodiment Figure 1 ;

[0071] Fig.12 Another photocatalyst module explosion according to an exemplary embodiment Figure 2 ;

[0072] Fig.13 It is a structural schematic diagram of another photocatalyst catalysis module proposed according to an exemplary embodiment, in which the center of the photocatalyst catalysis module coincides with the vertical projection of the light source input device;

[0073] Fig.14 It is a structural schematic diagram of another photocatalyst catalysis module provided according to an exemplary embodiment, wherein the photocatalyst catalysis module is far away from the light source input device;

[0074] Fig.15 is a hardware configuration block diagram of a controller according to an exemplary embodiment;

[0075] Fig.16 A hardware configuration block diagram of a refrigerator according to an exemplary embodiment;

[0076] Fig.17 A control logic for sterilization and deodorization of a refrigerator according to an exemplary embodiment;

[0077] Fig.18Another control logic for sterilization and deodorization of a refrigerator according to an exemplary embodiment;

[0078] Fig.19 Based on the odor detection device provided in the refrigerator according to the exemplary embodiment, the control logic of the refrigerator for intelligent odor removal is provided;

[0079] Fig. 20 Another control logic for sterilization and deodorization of a refrigerator according to an exemplary embodiment;

[0080] In the above figures:

[0081] Bus 81; memory 82; processor 83; communication interface 84; controller 6;

[0082] Refrigerating chamber 1; inner liner 12; outer shell 11; door 2; door inner liner 22; door outer shell 21;

[0083] Sterilization and purification device 3; housing 31; air inlet 32; air outlet 33; refrigeration drawer 5;

[0084] Photocatalyst module 34; light source input device 35; light source port 36;

[0085] Photocatalyst drive component 37; door closing detection component 9; air duct fan 10; built-in fan 7;

[0086] Motor 371; motor rod 372; gear 373; rack 374; odor detection device 4;

[0087] Sliding space 38 ; frame 341 ; base plate 342 ; operating portion 344 . DETAILED DESCRIPTION

[0088] The present invention is described in detail below by way of exemplary embodiments. However, it should be understood that elements, structures, and features in one embodiment may also be beneficially combined in other embodiments without further description.

[0089] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0090] The terms "first", "second" are used only for descriptive purposes and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Thus, the features defined as "first", "second" may explicitly or implicitly include one or more of the features.

[0091] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a direct connection, or an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0092] The present application provides a refrigerator, referring to Figure 1 The refrigerator includes a box body, and at least one storage space is formed inside the box body. The storage space includes at least a refrigerating chamber 11, a freezing chamber, and a drawer, wherein the drawer can be set as a refrigerating drawer 5, a fresh-keeping drawer, a temperature-changing drawer, etc.

[0093] In some embodiments, the storage space may also include a vacuum chamber and a variable temperature chamber, etc., to meet different storage needs of users.

[0094] The refrigerator of the present application also includes a door 2, which includes a door liner 22 and a door shell 21. The door 2 is used to open and close the storage space. The door 2 can be used to form a closed space for the cabinet to facilitate the sterilization and deodorization work inside the cabinet, prevent the introduction of new bacteria, and cause the air outside the cabinet to pollute the air inside the cabinet.

[0095] The cabinet includes an inner liner 12 defining a storage space, an outer shell 11 connected to the outer side of the inner liner 12 to form the appearance of a refrigerator, and an insulating layer provided between the inner liner 12 and the outer shell 11 to insulate the storage space.

[0096] A main air duct is formed between the inner tank 12 and the outer shell 11, and the main air duct is connected to the storage space inside the box. A refrigeration system is arranged in the main air duct. Cold air generated by the refrigeration system enters the box through the main air duct to cool the food in the box.

[0097] An air duct fan 10 is arranged in the main air duct to accelerate the air flow rate of the entire main air duct and the box, speed up heat exchange and further promote the efficiency of sterilization and deodorization.

[0098] In the present application, a refrigeration system for supplying cold air to a storage space includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigerant circulates in the various components of the refrigeration system to achieve a refrigeration effect. The main flow process of the refrigerant in each component is: the refrigerant enters the condenser after passing through the compressor, enters the expansion valve after passing through the condenser, enters the evaporator after passing through the expansion valve, and flows back to the compressor after passing through the evaporator.

[0099] Specifically, the compressor compresses the refrigerant gas at high temperature and high pressure and discharges the compressed refrigerant gas. The discharged refrigerant gas flows into the condenser. The condenser condenses the compressed refrigerant into a liquid phase, and the heat is released to the surrounding environment through the condensation process. The expansion valve expands the liquid phase refrigerant in the high temperature and high pressure state in the condenser into a low pressure liquid phase refrigerant. The evaporator evaporates the refrigerant expanded in the expansion valve and returns the refrigerant gas in a low temperature and low pressure state to the compressor. The evaporator can achieve a refrigeration effect by utilizing the latent heat of evaporation of the refrigerant or heat exchange with the material to be cooled.

[0100] Reference Figure 1 The sterilization and purification device 3 included in the refrigerator in the present application is arranged in the refrigeration drawer 5. Exemplarily, the sterilization and purification device 3 can be arranged on the top of the refrigeration drawer 5. It can be understood that the sterilization and purification device 3 can also be placed on the bottom, rear wall or side wall of the refrigeration drawer 5.

[0101] It can be known that the sterilization and purification device 3 can also be installed in a fresh-keeping drawer or a variable temperature room to sterilize and remove odors from the fresh-keeping drawer or the variable temperature room.

[0102] It should be noted that the following description is made by taking the sterilization and purification device 3 for sterilizing and purifying the refrigeration drawer 5 as an example. Of course, the sterilization and purification device 3 can be arranged in other storage spaces of the refrigerator.

[0103] Reference Figure 2-6 The sterilization and purification device 3 further includes a housing 31 installed in the refrigerated drawer 5 and the sterilization and purification device 3 arranged in the housing 31, wherein the housing 31 is used to form the appearance of the sterilization and purification device 3, and an internal air duct is formed therein, and an air inlet 32 ​​and an air outlet 33 are formed on both sides of the internal air duct, and the internal air duct can be used for air flow and provide installation space for internal components. The air inlet 32, the internal air duct and the air outlet 33 are connected so that the air in the box enters the internal air duct and reacts with the ion group generated by the sterilization and purification device 3.

[0104] In some implementations of this embodiment, the sterilization and purification device 3 includes a light source input device 35 and a photocatalyst catalytic module 34, both of which are arranged in the housing 31. The light source input device 35 can output light sources of different wavelengths, and the photocatalyst catalytic module 34 can use the light source to generate ion groups to remove bacteria and odors in the box.

[0105] Exemplarily, the light source input device 35 is configured as an LED lamp column, and lamp beads of different colors and wavelengths can be configured to improve the efficiency of sterilization and generation of ion groups.

[0106] In this embodiment, the light source input device 35 can output 220nm-280nm ultraviolet light and / or 400nm-420nm short-wave blue light. The light source input device 35 can include a variety of LED lamp beads.

[0107] The above structure can only achieve the single use of photocatalyst to remove odor, but cannot achieve the problem of sterilization. In this application, the above sterilization and purification device 3 is further adjusted.

[0108] In some embodiments, the positions of the light source input device 35 and the photocatalyst catalytic module 34 are arranged to be staggered along the length direction of the housing 31 so as to satisfy the moving space of the photocatalyst catalytic module 34 .

[0109] In some embodiments, reference Figure 2-4 The sterilization and purification module also includes a light source opening 36, which is an open opening arranged opposite to the light source input device 35. The light source of the light source input device 35 can irradiate the storage space through the light source opening 36 to sterilize the storage space.

[0110] Of course, it is known that the light source of the light source input device 35 also shines toward the storage space through the air inlet 32 ​​and the air outlet 33 .

[0111] In some implementations of this embodiment, reference Figure 2 The sterilization and purification device 3 also includes a photocatalyst driving component 37, which is connected to the photocatalyst catalytic module 34 and is used to drive the photocatalyst catalytic module 34 to move along the length direction of the shell 31 to adjust the function of the sterilization and purification device 3, specifically, to control the sterilization and purification module to perform sterilization or purification.

[0112] The photocatalyst catalytic module 34 is movably installed on a side of the light source input device 35 close to the light source opening 36 . The photocatalyst catalytic module 34 can be moved to shield the light source opening 36 . The photocatalyst catalytic module 34 can also react to generate ion groups under the action of the light source.

[0113] In the present application, the selection or switching of the refrigerator mode can be based on the electrical signal output by the user, and of course it can also be started based on some parameters. Fig.16 The refrigerator also includes an odor detection device 4, which is installed in the main air duct. The odor detection device 4 is used to detect the odor concentration in the box to serve as a basis for driving the photocatalytic module 34 to generate a unit to work.

[0114] In some implementations of the present embodiment, when the odor concentration detected by the odor detection device 4 reaches the first set range condition, it is determined that the odor concentration in the box is high and needs to be removed. At this time, the light source input device 35 is turned on to allow the photocatalyst module 34 to generate ions; when the odor concentration detected by the odor detection device 4 reaches the end of working conditions, it is determined that the odor concentration in the box is within the normal range, and the power input end of the light source input device 35 is turned off.

[0115] In some embodiments, the photocatalyst catalytic module 34 utilizes light-irradiated discharge coupled with a photocatalyst to achieve low-temperature plasma discharge and coordinated photocatalyst / metal oxide catalyst catalytic functions to achieve a fast and efficient deodorization effect.

[0116] In the technical solution of the present application, the main function of the photocatalytic module 34 is to remove odor. The light source excites the photocatalyst to generate electrons and holes. After the electrons migrate from the valence band to the conduction band, they react with O2. The reaction formula is:

[0117]

[0118] The valence band holes react with H2O in the air, and the reaction equation is:

[0119] h + +H2O→.OH

[0120] . Both .OH are highly oxidizing. The air in the box is sucked in by the built-in fan 734 or the air flow circulates in the box. The odor molecules in the air are oxidized and decomposed in the photocatalytic module 34, which plays a strong and rapid odor removal role.

[0121] Reference Figure 5-6 , 11-12, the photocatalyst catalytic module 34 includes a substrate plate 342 and a photocatalyst layer (not shown in the figure) wrapped on the outer surface of the substrate plate 342, and the substrate plate 342 and the photocatalyst layer can be installed on the frame 341 to facilitate the installation and disassembly of the photocatalyst catalytic module 34.

[0122] In some embodiments, the built-in fan 7 is disposed in the shell 31, and the substrate plate 342 is disposed on a side of the built-in fan 7 close to the air outlet 33. A plurality of through holes are opened on the substrate plate 342 along the direction of the airflow or perpendicular to the direction of the airflow, thereby increasing the airflow passing rate and the surface area of ​​the photocatalyst layer, thereby improving the odor removal efficiency. Under the action of the built-in fan 7, the air in the box flows out from the air outlet 33 of the built-in fan 7, and then flows through the photocatalyst layer and then flows back to the box through the air outlet 33.

[0123] The photocatalyst catalysis module 34 utilizes the light source output by the light source input device 35 to excite the photocatalyst layer to generate strong oxidizing molecules to decompose the odor molecules in the box.

[0124] In some embodiments, reference Figure 6 The substrate plate 342 is set as a porous ceramic block, and the photocatalyst is coated or impregnated on the surface of the porous ceramic to achieve the catalytic function of low-temperature plasma discharge and photocatalyst / metal oxide catalyst. It should be noted that the photocatalyst here can be TiO2 doped with Cu or Mn oxide.

[0125] In some embodiments, reference Figure 5 , the photocatalyst catalytic module 34 is set as a cloth and its surface is coated with a photocatalyst. The photocatalyst semiconductor oxide composite coating contains one or more components of titanium oxide, zinc oxide, aluminum oxide, silicon oxide, and may also contain one or more active components of manganese oxide, copper oxide, cerium oxide, lanthanum oxide, zirconium oxide, silver oxide, cobalt oxide, nickel oxide, iron oxide or precious metals platinum, palladium, rhodium.

[0126] The photocatalyst driving component 37 includes a motor 371, a motor rod 372, a gear 373 and a rack 374, wherein the motor 371 can be installed on a motor 371 frame (not shown in the figure), the motor rod 372 is installed at the driving end of the motor 371, the gear 373 is installed at the end of the motor rod 372 away from the motor 371, the gear 373 and the rack 374 are meshed and connected, and the rack 374 is connected to the frame 341.

[0127] When the motor 371 is started, the electrode drives the gear 373 to rotate through the electrode rod, and the gear 373 drives the photocatalyst catalysis module 34 to move relative to the length direction of the shell 31 through the frame 341, thereby realizing the position switching of the photocatalyst catalysis module 34 to change the relative position relationship between the photocatalyst catalysis module 34 and the light source input device 35.

[0128] Specifically, refer to Figure 6 As shown, the motor 371 can be set as a dual-axis motor 371, which is equipped with two motor rods 372, two gears 373 and two racks 374. The motor 371 can drive the corresponding gear 373 to rotate via the motor rod 372, and the gear 373 and the rack 374 are engaged to drive the rack 374 and the photocatalyst catalytic module 34 to move left and right.

[0129] It is known that the photocatalyst driving component 37 can also be configured as other components that can drive the photocatalyst catalytic module 34 to move, for example, a driving component such as a lead screw.

[0130] Reference Figure 7The photocatalyst driving component 37 can drive the photocatalyst catalytic module 34 to move so that its center coincides with the vertical projection of the light source output device. The photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the corresponding storage space.

[0131] Reference Figure 8 The photocatalyst driving component 37 can drive the photocatalyst catalytic module 34 away from the light source input device 35, so that the light source of the light source input device 35 can illuminate the storage space through the light source opening 36 to sterilize the storage space and / or food.

[0132] In some implementations of this embodiment, the refrigerator also includes a built-in fan 7, which can be arranged in the storage space and located on one side of the sterilization and purification device 3, for accelerating the airflow in the storage space, accelerating the diffusion of ions and strong oxidizing active substances, improving the contact efficiency between the air and the ion group in the box, accelerating odor removal and sterilization, and improving odor removal efficiency.

[0133] The air in the box enters the housing 31 through the air inlet 32, flows through the sterilization and purification device 3 under the action of the built-in fan 7, and flows back to the box through the air outlet 33 after contacting the ion group generated by the device. In the process of contact between the air and the ion group, the ions can absorb and decompose the odor molecules and bacteria in the air, and at the same time, the ions will flow into the box with the air flow to remove the bacteria in the box.

[0134] In some implementations of this embodiment, a built-in fan 7 may also be disposed in the housing 31 to accelerate the diffusion of the generated ion groups into the storage space, thereby achieving the purpose of improving the purification efficiency.

[0135] In some implementations of this embodiment, when the photocatalytic module 34 generates ion groups under the action of the light source of the light source input device 35 , the built-in fan 7 is turned on.

[0136] Reference Fig.15 The refrigerator in the embodiment of the present application further includes a controller 6. The controller 6 obtains various operating parameters of the refrigerator through various control programs stored in the memory, and controls the operation of various parts of the refrigerator and responds to user operations. The controller 6 can control the working state of the sterilization and purification device 336 according to the detected state of the refrigerator to achieve the sterilization and deodorization function of the box.

[0137] The controller 6 controls the overall operation of the refrigerator. For example, in response to receiving a sterilization and deodorization instruction issued by a user, the controller 6 can perform operations related to the object selected by the sterilization and deodorization instruction.

[0138] In some embodiments, the controller 6 includes at least one of a central processing unit (CPU), a video processor, an audio processor, a graphics processing unit (GPU), a RAM Random Access Memory (RAM), a ROM (Read-Only Memory, ROM), a first interface to an nth interface for input / output, a communication bus (Bus), etc.

[0139] In the embodiment shown in the present application, the controller 6 refers to a device that can generate an operation control signal according to an instruction operation code and a timing signal to instruct the refrigerator to execute a control instruction.

[0140] The present application embodiment also provides a hardware structure diagram of a controller 6, such as Fig.15 As shown, the controller 6 includes a processor 83, and optionally, also includes a memory 82 and a communication interface 84 connected to the processor 83. The processor 83, the memory 82 and the communication interface 84 are connected via a bus 81.

[0141] The processor 83 may be a central processing unit 83 (CPU), a general processor 83, a network processor 83 (NP), a digital signal processor 83 (DSP), a microprocessor 83, a microcontroller 6, a programmable logic device (PLD), or any combination thereof. The processor 83 may also be any other device having a processing function, such as a circuit, a device, or a software module. The processor 83 may also include multiple CPUs, and the processor 83 may be a single-CPU processor 83 or a multi-CPU processor 83. The processor 83 here may refer to one or more devices, circuits, or processing cores for processing data (such as computer program instructions).

[0142] The memory 82 may be a read-only memory 82 (ROM) or other types of static storage devices that can store static information and instructions, a random access memory 82 (RAM) or other types of dynamic storage devices that can store information and instructions, or an electrically erasable programmable read-only memory 82 (EEPROM), a compact disc read-only memory (CD-ROM) or other optical disc storage, optical disc storage (including compressed optical disc, laser disc, optical disc, digital versatile disc, Blu-ray disc, etc.), a magnetic disk storage medium or other magnetic storage device, or any other medium that can be used to carry or store the desired program code in the form of an instruction or data structure and can be accessed by a computer, and the embodiment of the present application does not impose any restrictions on this. The memory 82 may exist independently or be integrated with the processor 83. Among them, the memory 82 may contain a computer program code. The processor 83 is used to execute the computer program code stored in the memory 82, thereby realizing the control method of the multi-connected refrigerator 100 system provided in the embodiment of the present application.

[0143] The communication interface 84 can be used to communicate with other devices or communication networks (such as Ethernet, radio access network (RAN), wireless local area networks (WLAN), etc. The communication interface 84 can be a module, a circuit, a transceiver or any device that can achieve communication.

[0144] The bus 81 may be a peripheral component interconnect (PCI) bus 81 or an extended industry standard architecture (EISA) bus 81, etc. The bus 81 may be divided into an address bus 81, a data bus 81, a control bus 81, etc. For ease of representation, Fig.11 Although only one thick line is used in the figure, it does not mean that there is only one bus 81 or only one type of bus 81.

[0145] In some implementations of this embodiment, the controller 6 is installed on the door of the box. Of course, for the sake of layout, the controller 6 can also be installed on the box body.

[0146] In some implementations of this embodiment, reference Figure 1The refrigerator further includes a door closing detection component 9, which is installed on the door or the box body, and is used to detect the state of the door and send a door opening signal or a door closing signal to the controller 6. Exemplarily, the door closing detection component 9 is set as a door closing detection sensor, which is used to detect whether the box body is in a closed state, and whether it is necessary to remove the floating bacteria.

[0147] In some implementations of this embodiment, reference Figure 1 The refrigerator includes an odor detection device 4 for detecting the odor concentration in the box and sending an odor concentration signal to the controller 6. Exemplarily, the odor detection device 4 is configured as an odor detection sensor, which is configured to detect the odor concentration in the box and send an odor concentration signal to the controller 6, so that the controller 6 controls the corresponding odor removal component to remove the odor.

[0148] In some implementations of the present embodiment, the controller 6 is configured to, when the odor concentration detected by the odor detection device 4 reaches a first set range condition, determine that the odor concentration in the box is high and needs to be removed, and turn on the photocatalyst catalysis module 34; when the odor concentration detected by the odor detection device 4 reaches a second preset concentration condition, determine that the odor concentration in the box is within a normal range, and turn off the photocatalyst catalysis module 34.

[0149] In some implementations of this embodiment, the controller 6 is configured to, when receiving the first signal, connect the power supply of the light source input device 35, the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 to move so that its center coincides with the vertical projection of the light source output device, and the photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the corresponding storage space;

[0150] When the second signal is received, the power supply of the light source input device 35 is connected, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 away from the light source input device 35, so that the light source of the light source input device 35 can illuminate the storage space through the light source opening 36 to sterilize the storage space and / or food.

[0151] In some embodiments, a circuit is provided between the light source input device 35 and a power source to control whether the light source input device 35 is powered.

[0152] Reference Fig.17 , explaining the control logic of sterilization and deodorization of the refrigerator in this application.

[0153] Determine whether a first signal is received (step S1701);

[0154] In step S1701, if the first signal is received, step S1702 is executed to determine whether the box is in a closed state;

[0155] In step S1702, if the box is in a closed state, step S1704 is executed to connect the power supply of the light source input device 35, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 to move so that its center coincides with the vertical projection of the light source output device; at this time, the photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the storage space;

[0156] In step S1702, if the box is not in the closed state, step S1705 is executed to give an alarm or take no action;

[0157] In step S1701, if the first signal is not received, step S1703 is executed to determine whether the second signal is received;

[0158] In step S1703, if the second signal is received, step S1706 is executed to determine whether the box is in a closed state;

[0159] In step S1706, if the box is in a closed state, step S1708 is executed to connect the power supply of the light source input device 35, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 away from the light source input device 35; at this time, the light source of the light source input device 35 can illuminate the storage space through the light source opening 36, and the storage space and / or food can be sterilized;

[0160] In step S1706, if the box is not in the closed state, step S1709 is executed to give an alarm or take no action;

[0161] In step S1703, if the second signal is not received, step S1707 is executed without taking any action.

[0162] In some implementations of this embodiment, the sterilization and deodorization device 3 can be installed in a compartment of the refrigerator compartment 1, such as a fresh-keeping drawer. The sterilization mode sterilizes the drawer and the surface of the food, and a built-in fan 7 can be installed at the air inlet 32 ​​or the air outlet 33 on one side of the sterilization and deodorization device 3 to improve the purification effect by enhancing air circulation when performing the purification function.

[0163] The sterilization and deodorization device 3 can also be installed in the main refrigeration compartment of the refrigerator. The sterilization mode sterilizes the refrigeration compartment 1 and the surface of the food, and enhances the purification effect by increasing the air circulation in the refrigeration compartment 1 due to the operation of the duct fan 10 when the air-cooled refrigerator is refrigerated. In order to further improve the purification effect, a fan can be independently installed at the air outlet on one side of the sterilization and deodorization device 3.

[0164] In some implementations of this embodiment, the controller 6 is further configured to, when receiving the third signal, drive the photocatalyst driving component 37 to move the photocatalyst catalytic module 34, so that the photocatalyst catalytic module 34 can generate ion groups under the light source of the light source input device 35 to purify the corresponding storage space;

[0165] At the same time, part of the light source of the light source input device 35 can illuminate the storage space through the light source opening 36 to sterilize the storage space and / or food.

[0166] Reference Fig.18 , explaining another control logic of refrigerator sterilization and deodorization in this application.

[0167] Determine whether a first signal is received (step S1801);

[0168] In step S1801, if the first signal is received, step S1802 is executed to determine whether the box is in a closed state;

[0169] In step S1802, if the box is in the closed state, step S1804 is executed to connect the power supply of the light source input device 35, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 to move so that its center coincides with the vertical projection of the light source output device; at this time, the photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the storage space;

[0170] In step S1802, if the box is not in the closed state, step S1805 is executed to give an alarm or take no action;

[0171] In step S1801, if the first signal is not received, step S1803 is executed to determine whether the second signal is received;

[0172] In step S1803, if the second signal is received, step S1806 is executed to determine whether the box is in a closed state;

[0173] In step S1806, if the box is in a closed state, step S1808 is executed to connect the power supply of the light source input device 35, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 away from the light source input device 35; at this time, the light source of the light source input device 35 can illuminate the storage space through the light source opening 36, and the storage space and / or food can be sterilized;

[0174] In step S1806, if the box is not in the closed state, step S1809 is executed to give an alarm or take no action;

[0175] In step S1803, if the second signal is not received, step S1807 is executed to determine whether the third signal is received;

[0176] In step S1807, if the third signal is received, step S1812 is executed to determine whether the box is in a closed state;

[0177] In step S1812, if the box is in a closed state, step S1810 is executed, the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 to move, and part of the light source of the light source input device 35 can illuminate the storage space through the light source opening 36;

[0178] In step S1812, if the box is in a closed state, step S1813 is executed to give an alarm or take no action;

[0179] In step S1807, if the third signal is not received, step S1811 is executed without taking any action.

[0180] In some implementations of this embodiment, the controller 6 is configured to cut off the power supply of the light source input device 35 when the door closing detection component 9 detects that the box is in an open state during the period when the photocatalyst catalytic module 34 generates ion groups or when the light source is used for sterilization, so as to prevent the light source in the sterilization band from escaping and causing safety impact on users.

[0181] Reference Fig.16 The controller 6 is electrically connected to the door closing detection component 9, the odor detection device 4, the light source input device 35, the motor 371, the built-in fan 7 and the duct fan 10, and receives the detected odor concentration and the door opening and closing signals to control the operation of the light source input device 35 and the motor 371, the built-in fan 7 and the duct fan 10.

[0182] In some implementations of this embodiment, when the refrigerator is in the deodorizing mode, the working state of the photocatalytic module 34 can be controlled according to the odor concentration in the refrigerator.

[0183] During the operation of the photocatalyst module 34, the airflow in the box passes through the surface of the photocatalyst module 34 under the action of the built-in fan 7 to remove odor molecules in the airflow. In this process, the airflow passes through the through holes, and the through holes of the substrate plate 342 can increase the contact area between the airflow and the photocatalyst layer.

[0184] Reference Fig.19 , which explains the control logic of the refrigerator for intelligent odor purification based on the refrigerator being equipped with an odor detection device 4.

[0185] Determine whether the odor concentration detected by the odor detection device reaches a preset range (step S1901);

[0186] In step S1901, if the odor detection device detects that the odor concentration reaches a preset range, step S1902 is executed to determine whether the box is in a closed state;

[0187] In step S1902, if the box is in a closed state, step S1904 is executed to connect the power supply of the light source input device 35, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 to move so that its center coincides with the vertical projection of the light source output device; at this time, the photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the storage space;

[0188] In step S1902, if the box is not in the closed state, step S1905 is executed to give an alarm or take no action;

[0189] In step S1901, if the odor detection device detects that the odor concentration does not reach the preset range, step S1903 is executed, the power supply of the light source input device 35 is connected, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 away from the light source input device 35; at this time, the light source of the light source input device 35 can illuminate the storage space through the light source opening 36, and the storage space and / or food can be sterilized, or step S1906 is executed without taking any action.

[0190] In the above steps, the working mode can also be controlled according to the odor concentration. It can be known that the different working states of the built-in fan 7, the duct fan 10 and the sterilization and purification device 3 can be controlled step by step by dividing the odor concentration. The different working states include the opening state and speed of the built-in fan 7 and the duct fan 10, and the parameter setting of the sterilization and purification device 3 that affects the amount of ion generation.

[0191] Through the above control method, the odor sensor and the odor purification component can be linked to achieve intelligent on-demand odor purification with fast speed and high efficiency, while taking into account user perception, user interaction and energy saving.

[0192] In some implementations of this embodiment, the shell 31 is mounted on the top of the storage space by snap-fitting or screwing.

[0193] In the above embodiment, the refrigerator includes a cabinet, a cabinet door for opening or closing the cabinet, a door closing detection component 9 for detecting the switch state of the cabinet, a sterilization and purification device 3 for sterilizing or purifying the cabinet, and a controller 6.

[0194] The sterilization and purification device 3 further comprises: a housing 31 having an air inlet 32 ​​and an air outlet 33 , a light source input device 35 , a light source opening 36 , a photocatalyst catalytic module 34 and a photocatalyst driving component 37 .

[0195] The photocatalyst driving component 37 drives the photocatalyst module 34 to move, so as to change the relative position between the photocatalyst module 34 and the light source input device 35 .

[0196] The controller 6 is configured such that, when receiving the first signal, the power source photocatalyst driving component 37 connected to the light source input device 35 drives the photocatalyst catalytic module 34 to move so that its center coincides with the vertical projection of the light source output device, and the photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the corresponding storage space;

[0197] When the second signal is received, the power supply of the light source input device 35 is connected, and the photocatalyst driving component 37 drives the photocatalyst catalytic module 34 away from the light source input device 35, so that the light source of the light source input device 35 can illuminate the storage space through the light source opening 36 to sterilize the storage space and / or food.

[0198] The photocatalyst catalytic module 34 is driven to move by the photocatalyst driving component 37 to change the relative position between the photocatalyst catalytic module 34 and the light source input device 35, and adjust the cleaning type of the sterilization and purification device 3. Sterilization and purification can be taken into account at the same time, and a full range of sterilization and purification functions can be provided for household appliances such as refrigerators.

[0199] In some implementations of this embodiment, in order to better coordinate the movement of the photocatalytic module 34, refer to Figure 9-12 A sliding space 38 is provided within the operating range of the photocatalyst module 34 , and the sliding space 38 is provided along the length direction of the housing 31 .

[0200] Exemplarily, the sliding space 38 may be configured as an elongated through hole, and the specific shape of the elongated through hole may be configured according to the connection position between the frame 341 and the photocatalyst driving component 37 and the component located in the sliding space 38 .

[0201] It is known that the frame 341 may need to be made of insulating material.

[0202] In some embodiments of the present application, compared with other embodiments, in this embodiment, reference is made to Fig.10 The sterilization and deodorization device also includes a frame 341, which can drive the photocatalyst catalysis module 34 thereon to move, so as to change the positional relationship between the photocatalyst catalysis module 34 and the light source input device 35 to achieve functional adjustment.

[0203] In some implementations of this embodiment, the sliding space 38 is configured as a through hole that penetrates the inside and outside of the shell 31, and the sliding space 38 is configured to include a long through hole arranged from left to right.

[0204] Since the through hole is set in the horizontal direction, the problem of position fixation in the vertical direction does not need to be considered in this application. When the sliding space 38 is a through hole from top to bottom, a certain structure needs to be set to fix the position of the component.

[0205] In some implementations of this embodiment, the controller 6 is configured to connect the power supply of the light source input device 35 upon receiving the first signal or the second signal;

[0206] Reference Fig.14 When the operation part 344 drives the photocatalytic module 34 to move so that its center coincides with the vertical projection of the light source output device, the photocatalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the corresponding storage space;

[0207] Reference Fig.13 When the operating part 344 drives the photocatalyst module 34 away from the light source input device 35, the light source of the light source input device 35 can illuminate the storage space through the light source opening 36 to sterilize the storage space and / or food.

[0208] Reference Fig. 20 , illustrating the control logic of sterilization of the refrigerator in the embodiment of the present application.

[0209] Determine whether a first signal is received (step S2001);

[0210] In step S2001, if the first signal is received, step S2002 is executed to determine whether the box is in a closed state;

[0211] In step S2002, if the box is in the closed state, step S2004 is executed to connect the power supply of the light source input device 35, and drive the photocatalyst catalytic module 34 to move through the operating part 344 so that its center coincides with the vertical projection of the light source output device; at this time, the photocatalyst catalytic module 34 generates an ion group under the action of the light source of the light source input device 35 to purify the storage space;

[0212] In step S2002, if the box is not in the closed state, step S2005 is executed to give an alarm or take no action;

[0213] In step S2001, if the first signal is not received, step S2003 is executed to determine whether the second signal is received;

[0214] In step S2003, if the second signal is received, step S2006 is executed to determine whether the box is in a closed state;

[0215] In step S2006, if the box is in the closed state, step S2008 is executed to connect the power supply of the light source input device 35, and drive the photocatalyst catalytic module 34 away from the light source input device 35 through the operating part 344; at this time, the light source of the light source input device 35 can illuminate the storage space through the light source opening 36, and the storage space and / or food can be sterilized;

[0216] In step S2006, if the box is not in the closed state, step S2009 is executed to give an alarm or take no action;

[0217] In step S2003, if the second signal is not received, step S2007 is executed without taking any action.

[0218] In the above steps, the position of the photocatalyst catalytic module 34 is changed by the manual wave operation unit 344. When the photocatalyst catalytic module 34 is moved to the side away from the light source input device 35, ultraviolet light or low-wave blue light is mainly used for sterilization; when the photocatalyst catalytic module 34 moves to the point where its center coincides with the vertical projection of the light source input device 35, the photocatalyst catalytic module 34 is mainly used to generate ion groups for purification.

[0219] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art who is familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A refrigerator, characterized in that: include: A box body, wherein at least one storage space is formed inside the box body; A box door, used to open or close the box; A door closing detection component, which is arranged on the box door or the box body and is used to detect the state of the storage space; A sterilization and purification device, which is used to sterilize or purify the storage space in which it is located; A controller, the controller being electrically connected to the door closing detection component and the sterilization and purification device; The sterilization and purification device comprises: A shell, which is arranged in the storage space, and the shell includes an air inlet and an air outlet arranged along the length direction thereof; A light source input device, which is disposed in the housing and is used to output light sources of different wavelengths; A light source opening, which is an opening arranged opposite to the light source input device; A photocatalyst catalytic module is movably arranged in the housing, and is arranged on a side of the light source input device close to the light source opening. The photocatalyst catalytic module can be moved to block the light source opening, and the photocatalyst catalytic module can react to generate ion groups under the action of the light source; A photocatalyst driving component connected to the photocatalyst catalytic module and used to drive the photocatalyst catalytic module to move along the length direction of the shell to adjust the function of the sterilization and purification device; The controller is configured to, when receiving the first signal, connect the power source of the light source input device to the photocatalyst driving component to drive the photocatalyst catalytic module to move so that its center coincides with the vertical projection of the light source output device, and the photocatalyst catalytic module generates an ion group under the action of the light source of the light source input device to purify the corresponding storage space; When the second signal is received, the power supply of the light source input device is connected, and the photocatalyst driving component drives the photocatalyst catalytic module away from the light source input device, so that the light source of the light source input device can illuminate the storage space through the light source opening to sterilize the storage space and / or food.

2. The refrigerator according to claim 1, characterized in that: The controller is configured such that, when receiving the third signal, the photocatalyst driving component drives the photocatalyst catalytic module to move, so that the photocatalyst catalytic module can generate ion groups under the action of the light source of the light source input device to purify the corresponding storage space; At the same time, part of the light source of the light source input device can illuminate the storage space through the light source opening to sterilize the storage space and / or food.

3. The refrigerator according to claim 1 or 2, characterized in that: The photocatalyst driving component further comprises A motor, which is arranged in the housing; A motor rod, which is arranged at the driving end of the motor, and the motor drives the electrode rod to rotate; A gear connected to the motor rod, wherein the gear can rotate along with the motor rod; A rack, the rack is meshed and connected with the gear, and the rack is also connected with the photocatalyst catalysis module; The controller is configured to control the motor to start, the motor drives the gear to rotate, and the rack drives the photocatalyst catalysis module to move along the length direction of the shell, thereby realizing the position switching of the photocatalyst catalysis module to change the relative position of the photocatalyst catalysis module and the light source input device.

4. The refrigerator according to claim 3, characterized in that: The photocatalyst catalysis module comprises: A substrate plate, the substrate plate is movably disposed in the housing and connected to the rack; The photocatalyst layer is wrapped around the outer surface of the substrate plate. The air in the storage space enters the housing through the air inlet, flows through the photocatalyst layer, and then flows back to the storage space through the air outlet.

5. The refrigerator according to any one of claims 1, 2 and 4, characterized in that: Also includes: A built-in fan, which is arranged in the storage space and located on one side of the sterilization and purification device, and is used to accelerate the air flow in the storage space; The controller is configured to turn on the built-in fan when the photocatalyst catalysis module can generate ion groups under the action of the light source of the light source input device.

6. The refrigerator according to claim 1 or 2, characterized in that: The controller is configured to cut off the power supply of the light source input device when the door closing detection component detects that the box is in an open state during the period when the photocatalyst catalysis module generates ion groups or when the light source is used for sterilization.

7. The refrigerator according to claim 1 or 2, characterized in that: The storage space can be configured as a refrigerated room, a drawer or a temperature-changing room.

8. The refrigerator according to claim 1, characterized in that: The light source input device can output 220nm-280nm ultraviolet light and / or 400nm-420nm short-wave blue light.

9. The refrigerator according to any one of claims 1, 2 and 3, characterized in that: The shell is mounted on the top of the storage space by means of snap-fitting or screw fixing.

10. A refrigerator, characterized in that: include: A box body, having at least one storage space formed therein; A box door, used to open or close the box; A door closing detection component, which is arranged on the box door or the box body and is used to detect the state of the storage space; A sterilization and purification device, which is used to sterilize or purify the storage space in which it is located; A controller, the controller being electrically connected to the door closing detection component and the sterilization and purification device; The sterilization and purification device comprises: A shell body, which is arranged in the storage space, and the shell body has a shell body and an air inlet and an air outlet communicated with the shell body; A sliding space, wherein the sliding space is arranged along the length direction of the shell; A light source input device, which is disposed in the housing and is used to output light sources of different wavelengths; A light source opening, which is an opening arranged opposite to the light source input device; A photocatalyst catalytic module is movably disposed in the housing, and the photocatalyst catalytic module can react to generate ion groups under the action of the light source; An operating unit connected to the photocatalyst catalysis module and used to drive the photocatalyst catalysis module to determine whether to block the light source of the light source output device from irradiating the corresponding storage space; The controller is configured to connect the power supply of the light source input device after receiving the first signal or the second signal; When the operating part drives the photocatalyst catalytic module to move so that its center coincides with the vertical projection of the light source output device, the photocatalyst catalytic module generates an ion group under the action of the light source of the light source input device to purify the corresponding storage space; When the operating part drives the photocatalyst module away from the light source input device, the light source of the light source input device can illuminate the storage space through the light source opening to sterilize the storage space and / or food.

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