CN116734543A

CN116734543A - Refrigerator with a refrigerator body

Info

Publication number: CN116734543A
Application number: CN202310692827.2A
Authority: CN
Inventors: 栾福磊; 杨春; 王海燕; 付婧; 刘峰良
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-09-12

Abstract

The application provides a refrigerator, which comprises a refrigerator body, wherein the refrigerator body comprises a refrigerator body, a main air duct, an image acquisition device arranged in the refrigerator body and used for acquiring images so as to identify the types and the quantity of food materials, and a cleaning device used for sterilizing and deodorizing the inside of the refrigerator body, the cleaning device further comprises a shell with an internal air duct, a high-voltage power supply used for emitting high-voltage so as to enable a sterilizing ion generating unit to discharge ions to form ion groups so as to remove bacteria and peculiar smell in the refrigerator body, a built-in fan arranged in the internal air duct and used for accelerating the airflow in the shell to flow, and a sterilizing ion generating unit, wherein a controller is used for identifying the types of food materials in the refrigerator body according to the images acquired by the image acquisition device; when the food is in the list of perishable food, the sterilizing ion generating unit is started, the built-in fan is started, the working voltage of the high-voltage power supply output voltage value is adjusted to increase the ion number emitted by the sterilizing ion generating unit, and the sterilizing ion generating unit is closed after working for a set working time.

Description

Refrigerator with a refrigerator body

Technical Field

The application relates to the technical field of household appliances, in particular to a refrigerator.

Background

Refrigerators are indispensable appliances in home life, which prevent food from deteriorating by reducing the temperature of a food storage space, however, even in a low temperature environment, the refrigerators propagate harmful microorganisms, which not only reduce the freshness of food, but also bring hidden danger to food safety. Based on this, the refrigerator needs to be sterilized.

Traditional refrigerator degerming technique includes photocatalysis sterilization, plasma sterilization, anion sterilization, ultraviolet sterilization, sampling sterilization, silver ion bactericidal lamp, but, the preservation degree of difficulty of different food materials is different, and rotten speed is also different, and at present, the mode of operation of refrigerator degerming technique is comparatively single, does not have pertinence, can't realize accurate degerming, can cause the extravagant of energy in, and too much strong oxidation ion can also influence the quality of food.

In view of this, the present application has been proposed.

Disclosure of Invention

The application provides a refrigerator, which is characterized in that an image is acquired by an image acquisition device to be used for identifying the types and the quantity of food materials, then a sterilizing ion generation unit and an internal fan are started according to the types of the food materials, and the working states of the sterilizing ion generation unit and the internal fan are adjusted to specifically sterilize.

To this end, the present application is directed to a refrigerator including:

the box body comprises an inner container forming a storage space and a shell connected to the outer side of the inner container, and a main air channel is formed between the inner container and the shell;

the image acquisition device is arranged in the box body and is used for acquiring images so as to identify the types and the quantity of food materials;

The cleaning device, it locates in the box for to the inside deodorization that disinfects of box, cleaning device further includes:

the shell is arranged in the box body and comprises an air inlet, an air outlet and an internal air channel which are communicated;

the built-in fan is arranged in the internal air duct and used for accelerating the airflow in the shell;

the sterilizing ion generating unit is arranged in the internal air duct and is used for removing bacteria and/or peculiar smell of the box body by utilizing ion groups generated by the sterilizing ion generating unit;

the high-voltage power supply is used for emitting high-voltage to discharge the sterilizing ion generating unit to form ion groups;

the refrigerator further comprises a controller configured to identify the type of food materials in the refrigerator body according to the image of the food material storage area acquired by the image acquisition device;

when the food material is in the perishable food material list, the set working time and working voltage of the corresponding sterilizing ion generating unit are determined, the sterilizing ion generating unit is started, the built-in fan is started, the working voltage of the high-voltage power output voltage value is adjusted to increase the ion number generated by the sterilizing ion generating unit, and the sterilizing ion generating unit is closed after working for the set working time.

In some embodiments of the application, further comprising:

The odor detection device is arranged in the main air duct and is used for detecting the odor concentration in the box body;

the cleaning device further comprises a deodorizing ion generating unit which is arranged in the shell and is used for removing peculiar smell in the box body by utilizing ion groups generated by the cleaning device;

the controller is configured to turn on the deodorizing ion generating unit when the odor concentration detected by the odor detecting device reaches a first preset concentration condition;

and when the odor concentration detected by the odor detection device reaches a second preset concentration condition, closing the odor removal ion generation unit.

In some embodiments of the present application, the controller is configured to identify the amount of food in the case based on the image of the food storage area acquired by the image acquisition device, and turn off the odor detection device when the amount of food reaches the energy-saving amount condition;

when the number of the food materials in the box body is identified to be increased, the odor detection device is started.

In some embodiments of the application, a door is further included for opening or closing the case;

the door closing detection assembly is arranged on the box body and used for detecting the opening and closing states of the box body;

the controller is configured to determine whether the state of the housing is a closed state before turning on the sterilizing ion generating unit, and turn on the sterilizing ion generating unit if the state of the housing is the closed state.

In some embodiments of the present application, the sterilizing ion generating unit includes a transmitting electrode structure, one side of the transmitting electrode structure is provided with a needle tip structure, the needle tip structure is provided on one side of the built-in fan close to the air outlet, and the transmitting electrode structure is used for utilizing a high voltage power supply provided by a high voltage power supply to make the needle tip structure form a strong oxide ion group through corona discharge so as to remove planktonic bacteria in the box body;

the controller controls the concentration of the generated strong oxidizing ions by utilizing a discharge control rule according to the corona ion circuit so that the concentration of the strong oxidizing ions is below a set threshold value, and the set threshold value is set according to the perception degree of a user.

In some embodiments of the application, the sterilizing ion generating unit further comprises:

the positive electrode is arranged on one side of the built-in fan close to the air outlet;

the negative electrode is arranged on one side of the built-in fan close to the air outlet, and the negative electrode and the positive electrode are arranged along the length direction of the shell;

the positive electrode and the negative electrode form a positive ion group and a negative ion group by utilizing high-voltage provided by a high-voltage power supply so as to remove attached bacteria in the box body;

the controller controls the high voltage power supplied to the positive and negative electrodes according to the control positive and negative ion circuits to thereby control the concentrations of the generated positive and negative ion groups.

In some embodiments of the present application, the deodorizing ion generating unit includes a photocatalyst catalytic unit disposed in the housing and transversely disposed in the internal air duct, the photocatalyst catalytic unit further including:

a first electrode plate is arranged on the first electrode plate,

the second electrode plate is arranged on one side of the first electrode plate, which is close to the built-in fan;

the substrate plate is arranged between the first electrode plate and the second electrode plate, and is provided with a plurality of through holes along the direction of airflow direction;

a photocatalyst layer which is wrapped on the outer surface of the substrate plate, and through which the airflow flowing out of the internal fan flows;

the high-voltage electric field excitation light catalyst layer generated by the first electrode plate and the second electrode plate is utilized to generate strong oxidation molecules so as to decompose odor molecules in the box body.

In some embodiments of the present application, during operation of the sterilizing ion generating unit and/or the deodorizing ion generating unit, the sterilizing ion generating unit and/or the deodorizing ion generating unit is deactivated and the built-in fan is turned off when the door-closing detection assembly is detected to emit a door-opening signal.

In some embodiments of the present application, before turning on the sterilizing and/or deodorizing ion generating units, it is necessary to determine whether the time during which the sterilizing and/or deodorizing ion generating units are in a stopped state reaches a corresponding set stop time;

If the time in the stop state does not reach the corresponding set stop time, the stop time is started after waiting for the corresponding set stop time.

In some embodiments of the present application, the operation time of the sterilizing ion generating unit may be adjusted according to the kind, number and opening time of the food stuff.

In the above embodiment, the refrigerator includes a case including a liner forming a storage space and a housing connected to an outside of the liner, a main air duct being formed between the liner and the housing, the refrigerator further includes an image pickup device provided in the case, a cleaning device for picking up images for identifying kinds and numbers of food materials, the cleaning device for sterilizing and deodorizing the inside of the case, the cleaning device further including a case having an air inlet, an air outlet and an internal air duct, a built-in fan provided in the internal air duct, a sterilizing ion generating unit, a high voltage power supply, the built-in fan being capable of accelerating an air flow in the case, the sterilizing ion generating unit being capable of generating ion groups for removing bacteria and odor in the case, the high voltage power supply being for emitting a high voltage to discharge the sterilizing ion generating unit to form the ion groups. The controller is configured to identify the type of food material in the box body according to the image of the food material storage area acquired by the image acquisition device; when the food material is in the perishable food material list, the set working time and working voltage of the corresponding sterilizing ion generating unit are determined, the sterilizing ion generating unit is started, the built-in fan is started, the working voltage of the high-voltage power output voltage value is adjusted to increase the ion number emitted by the sterilizing ion generating unit, and the sterilizing ion generating unit is closed after working for the set working time. In order to realize carrying out accurate degerming according to the food kind, avoid perishable food to decay because degerming is not put in place, perhaps perishable food excessively degerming leads to the energy consumption too high.

Drawings

In order to more clearly illustrate the embodiments of the invention or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the invention, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic view of a structure of a refrigerator provided according to an exemplary embodiment;

fig. 2 is a hardware configuration block diagram of a refrigerator provided according to an exemplary embodiment;

fig. 3 is a schematic structural view of a cleaning device of a refrigerator according to an exemplary embodiment;

fig. 4 is an exploded view of a cleaning device of a refrigerator according to an exemplary embodiment;

fig. 5 is a second exploded view of a cleaning device of a refrigerator according to an exemplary embodiment;

FIG. 6 is an enlarged view at A in FIG. 14;

FIG. 7 is an enlarged view at B in FIG. 5;

fig. 8 is a schematic structural view of a photocatalyst catalytic unit according to an exemplary embodiment;

fig. 9 is an exploded view of a photocatalyst catalytic unit according to an exemplary embodiment;

fig. 10 is an exploded view of another photocatalyst catalytic unit according to an exemplary embodiment;

Fig. 11 is a hardware configuration block diagram of a controller proposed according to an exemplary embodiment;

fig. 12 is a control logic of the odor removal of the refrigerator according to an exemplary embodiment;

fig. 13 is a control logic of sterilization of a refrigerator according to an exemplary embodiment;

FIG. 14 is a partial schematic view of a proposed cleaning device according to an exemplary embodiment;

fig. 15 is a control logic for judging whether the door opening time reaches a preset door opening time and whether sterilization of food materials is added in the refrigerator according to the exemplary embodiment;

fig. 16 is control logic for sterilization according to the type of food material according to an exemplary embodiment;

FIG. 17 is control logic for a proposed energy saving mode according to an exemplary embodiment;

in the above figures:

a bus 81; a memory 82; a processor 83; a communication interface 84;

a refrigerating chamber 1; an inner container 12; a housing 11; a case; a door 2; a door liner 22; a door case 21;

a cleaning device 3; a housing 31; an air inlet 32; an air outlet 33; a built-in fan 34;

an internal air duct 35; an odor detection device 4; an image acquisition device 5; a controller 6;

a sterilizing ion generating unit 36; positive and negative ion generating means 361; a strong oxidizing ion generating unit 362;

a photocatalyst catalytic unit 363; a positive electrode 3611; a negative electrode 3612;

A substrate plate 3631; first electrode plate 3632; a second electrode plate 3633; a photocatalyst layer 3634;

a cold catalyst catalytic unit 364; tip structure 3621; an emitter electrode structure 3622;

an ambient temperature detection means 8; a door closing detection assembly 9; an air duct fan 10.

Detailed Description

The present invention will be specifically described below by way of exemplary embodiments. It is to be understood that elements, structures, and features of one embodiment may be beneficially incorporated in other embodiments without further recitation.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., are based on the orientations or positional relationships shown in the drawings, are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

The terms "first", "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any particular number of features being indicated. Thus, a feature defining "a first", "a second" or the like may include one or more such features explicitly or implicitly.

In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted", "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present application will be understood in specific cases by those of ordinary skill in the art.

The application provides a refrigerator, referring to fig. 1, the refrigerator comprises a box body, a storage room is formed in the box body, the storage room at least comprises a refrigerating room 1 and a freezing room, in some embodiments, the storage room can also comprise a vacuum room, a temperature changing room and the like so as to meet different storage requirements of users.

The refrigerator further comprises a refrigerator door 2, wherein the refrigerator door 2 comprises a refrigerator door 2 inner container 22 and a refrigerator door 2 outer shell 21, the refrigerator door 2 is used for opening and closing a storage space, the refrigerator door 2 can be used for enabling the refrigerator body to form a closed space so as to facilitate sterilization and smell removal of the inside of the refrigerator body, new bacteria are prevented from being introduced, and air outside the refrigerator body is enabled to pollute the air inside the refrigerator body.

The case includes a liner 12 defining a storage space, a case 11 connected to an outside of the liner 12 to form an external appearance of the refrigerator, and a heat insulating layer provided between the liner 12 and the case 11 to insulate the storage space.

A main air duct is formed between the liner 12 and the shell 11, and is communicated with the storage compartment in the box body, a refrigerating system is arranged in the main air duct, and cold air generated by the refrigerating system enters the box body through the main air duct so as to cool food materials in the box body.

An air duct fan 10 is arranged in the main air duct and used for accelerating the airflow velocity of the whole main air duct and the box body, accelerating heat exchange and further promoting the sterilization and odor removal efficiency.

In the present application, a refrigerating system for supplying cool air into a storage compartment includes a compressor, a condenser, an expansion valve, and an evaporator. The refrigerant circulates in each part of the refrigeration system to realize the refrigeration effect. The main circulation process of the refrigerant in each part is as follows: 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.

Specifically, the compressor compresses 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 liquid phase, and the heat is released to the surrounding environment through the condensation process, and the expansion valve expands the liquid phase refrigerant in the high temperature and high pressure state in the condenser into 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 may achieve a refrigerating effect by utilizing latent heat of evaporation of a refrigerant or heat exchange of a material to be cooled.

Referring to fig. 1, the cabinet includes a top and a bottom disposed opposite to each other, and the refrigerator of the present application includes a cleaning device 3 disposed in the cabinet, and the cleaning device 3 may be disposed at the top of the cabinet, for example.

The cleaning device 3 according to the present application performs sterilization and deodorization with respect to the refrigerator compartment 1.

Referring to fig. 3 to 5, the cleaning device 3 further includes a housing 31, a built-in fan 34 provided in the housing 31, and a sterilizing ion generating unit 36, wherein the housing 31 serves to form the exterior of the cleaning device 3, and forms an internal air duct 35 inside thereof, and forms an air inlet 32 and an air outlet 33 at both sides of the internal air duct 35, and the internal air duct 35 can serve for air flow and provide an installation space for internal components. The air inlet 32, the internal air duct 35 and the air outlet 33 are communicated so that air in the box body enters the internal air duct 35 to react with ion groups generated by the sterilizing ion generating unit 36.

The built-in fan 34 is disposed in the internal air duct 35 and is located at a side close to the air inlet 32, and is used for accelerating airflow in the box body, accelerating diffusion of ions and strong oxidation active substances, improving contact efficiency of air in the box body and ion groups, accelerating odor removal and sterilization, and improving odor removal efficiency.

A sterilizing ion generating unit 36 is installed in the internal air duct 35 and located in some of the built-in fans 34 near the air outlet 33, the sterilizing ion generating unit 36 is used for generating ion groups for removing bacteria in the box body, and generally, ion types in the ion groups can include strong oxidizing ions, positive ions, negative ions and the like, and the strong oxidizing ions include hydroxyl radicals (OH), ozone (O) ₃ ) The bacterial types in the tank include plankton in the air in the tank, adhesion bacteria attached to the inner wall of the tank and food materials, and the like.

The air in the box body enters the internal air duct 35 through the air inlet 32, flows through the sterilizing ion generating unit 36 under the action of the internal fan 34, contacts with ion groups generated by the sterilizing ion generating unit, and flows back to the box body through the air outlet 33. In the process of contacting air with the ion group, ions can adsorb and decompose peculiar smell molecules and planktonic bacteria in the air, and meanwhile, the ions can flow into the box body along with the air flow to remove attached bacteria on the inner wall of the box body or the surface of food.

In some implementations of the present embodiment, the cleaning device 3 further includes a high voltage power supply for supplying a high voltage to the sterilizing ion generating unit 36 to discharge it to form ion groups for use in sterilizing the inside of the refrigerator. In the present embodiment, the generation of ion concentration can be controlled by controlling the discharge rule of the high-voltage power supply.

In some implementations of the present example, the sterilizing ion generating unit 36 includes a strong oxidizing ion generating unit 362, the strong oxidizing ion generating unit 362 generating a large amount of strong oxidizing active species including hydroxyl radicals (OH), ozone (O) and ions using needle tip corona discharge ₃ ) Atomic oxygen (O), ground oxygen (O), nitrogen oxides (NOx), etc., are diffused to the inner wall of the refrigerator and the surface of food to effectively kill and remove the attached bacteria. At the same time ozone (O) can be controlled by applying discharge control rules ₃ ) Controlling the ozone concentration below a user perception threshold. Illustratively, the discharge control rule is a relationship between the applied voltage and the ozone concentration.

The strong oxidizing ion generating unit comprises a corresponding corona ion circuit, the corona ion circuit is electrically connected with the high-voltage power supply, and in some embodiments, the controller controls the concentration of the generated strong oxidizing ions according to the corona ion circuit by utilizing a discharge control rule so that the concentration of the strong oxidizing ions is below a set threshold value, and the set threshold value is set according to the perception degree of a user. The sterilization is performed under the condition that a user does not feel, the user experience can be effectively improved, and meanwhile, the situation that the preservation condition of food materials in the box body is influenced by the too high concentration of strong oxidizing ions can be avoided.

Referring to fig. 6, the strong oxidation ion generating unit 362 includes an emitter electrode structure, one side of the emitter electrolyte plate is provided with a needle tip structure 3621, the needle tip structure 3621 is provided at one side of the built-in fan 34 near the air outlet 33, and the emitter electrode structure is used for corona-discharging the needle tip structure 3621 to form a strong oxidation ion group by using a high voltage provided by a high voltage source. Specifically, the tip structures 3621 are provided in plural.

Specifically, the strong oxidizing ion generating unit 362 includes an emitter electrode structure 3622 and a tip structure 3621, the emitter electrode structure 3622 further including a counter electrode and a holder, wherein the holder is detachably fixed in the internal air duct 35. The opposite electrode comprises a high-voltage electrode and a collecting electrode, wherein the high-voltage electrode is connected with high voltage, and the collecting electrode is connected with low voltage or grounded. The high-voltage electrode and the collecting electrode are fixed on the bracket at intervals.

The side of the high-voltage electrode facing the collecting electrode is convexly provided with a needle tip structure 3621, and in the opposite electrode of the strong oxidation ion generating unit 362, the needle tip structure 3621 is used for discharging, for example, the high-voltage electrode is connected with negative high voltage, a large amount of negative ions are generated by discharging at the needle tip structure 3621, and the generated negative ions are contacted with bacteria and dust in the air, so that the sterilizing and purifying effects are achieved. Specifically, the relative voltage of the opposite electrode to the ground or the opposite electrode to the high-voltage electrode of the needle tip structure 3621 is 0, and the direct current negative high voltage range of the two needle tip electrodes is-2.5 to-5 kV.

In some implementations of the present embodiment, the sterilizing ion generating unit 36 further includes a positive and negative ion generating unit 361, and planktonic bacteria in the air in the refrigerator can be efficiently and rapidly removed by the positive and negative ion generating unit 361.

Referring to fig. 7, the positive and negative ion generating unit 361 further includes a positive electrode 3611 and a negative electrode 3612 provided at a side of the built-in fan 34 near the air outlet 33, the positive electrode 3611 and the negative electrode 3612 being arranged along a length direction of the case 31, the positive electrode 3611 and the negative electrode 3612 forming a positive ion group and a negative ion group using a high voltage supplied from a high voltage power source.

The positive and negative ion generating unit further comprises a positive and negative ion circuit electrically connected with the high voltage power supply, and in some embodiments, the controller controls the high voltage power supply to the positive electrode and the negative electrode according to the positive and negative ion circuit, so as to control the concentration of the generated positive ion group and negative ion group, so that the sterilization intensity can be adjusted, and sterilization can be performed according to the requirement.

In some embodiments, the positive and negative ion generating units 361 use carbon brushes as discharge electrodes, however, other electrodes, such as needle-shaped discharge electrodes, are applicable to the technical solution of the present application. The direct current negative high voltage range of the negative high voltage carbon brush electrode is as follows: -2 to-9 kV, wherein the direct current positive high voltage range of the positive high voltage carbon brush electrode is as follows: the positions of the positive high voltage electrode and the negative high voltage electrode are not limited to 2-9kV, and the positions of the positive high voltage electrode and the negative high voltage electrode can be interchanged in the drawing.

In some implementations of this example, the cleaning device further includes a photocatalyst catalytic unit disposed within the housing for removing the odor from the tank using its own ion clusters,

in some implementations of this embodiment, referring to fig. 1, the refrigerator further includes an odor detection device 4, where the odor detection device 4 is installed in the main air duct, and the odor detection device 4 is used to detect the concentration of the odor in the refrigerator body, so as to serve as a basis for driving the photocatalyst catalytic unit generating unit to work.

In some implementations of this embodiment, when the odor concentration detected by the odor detection device reaches the first preset concentration condition, it is determined that the odor concentration in the case is higher at this time, and removal is required, and the photocatalyst catalytic unit is turned on at this time; when the odor concentration detected by the odor detection device reaches a second preset concentration condition, judging that the odor concentration in the box body is in a normal range at the moment, and closing the photocatalyst catalytic unit.

In some embodiments, the photocatalyst catalyzing unit 363 is disposed on one side of the built-in fan 34 near the air outlet 33, and in the present application, a DBD (dielectric barrier) discharge is used to couple the photocatalyst, so as to realize a low-temperature plasma discharge and a photocatalyst/metal oxide catalyst catalyzing function, thereby realizing a fast and efficient deodorizing effect.

In the technical proposal of the application, the photocatalyst catalysis unit 363 has the main functions of deodorizing, and the high-voltage electro-field excitation photocatalyst is used for generating electrons and holes, and the electrons migrate from valence band to conduction band and then react with O ₂ The reaction takes place, the reaction formula is:

the valence band cavity reacts with H2O in the air, and the reaction formula is:

h ⁺ +H ₂ O→.OH

OH has strong oxidizing property, air in the box body is sucked through the built-in fan 34, and peculiar smell molecules in the air are oxidized and decomposed at the photo-catalytic unit 363, so that the effects of strong efficiency and quick smell removal are achieved.

Referring to fig. 8, the photocatalyst catalyzing unit 363 includes a substrate plate 3631, a photocatalyst layer 3634 wrapped on an outer surface of the substrate plate 3631, and first and second electrode plates 3632 and 3633 disposed opposite to each other and located at both sides of the substrate plate 3631, the first and second electrode plates 3632 and 3633 being electrically connected to a high voltage power source. The substrate plate 3631 is disposed at one side of the built-in fan 34 near the air outlet 33, and a plurality of through holes are formed in the substrate plate 3631 along the direction of airflow direction, so that the passing rate of airflow is improved, the surface area of the photocatalyst layer 3634 is increased, the odor removing efficiency is improved, and air in the box flows out from the air outlet 33 of the built-in fan 34 under the action of the built-in fan 34, flows through the photocatalyst layer 3634 and flows back to the box through the air outlet 33.

The photocatalyst catalyzing unit 363 uses the high voltage electric field generated by the first electrode plate 3632 and the second electrode plate 3633 to excite the photocatalyst layer 3634 to generate strong oxidation molecules so as to decompose the odor molecules in the case.

In some embodiments, the substrate plate 3631 is configured as a porous ceramic, and the photocatalyst is coated or impregnated on the surface of the porous ceramic to achieve a low temperature plasma discharge synergistic photocatalyst/metal oxide catalyst catalytic function. The photocatalyst may be TiO ₂ Cu and Mn oxide are doped.

In some embodiments, referring to fig. 9, the first electrode plate 3632 and the second electrode plate 3633 are disposed on the plate-wire mesh electrode, which can effectively excite the photocatalyst occasionally and can also effectively reduce wind resistance. It should be noted that the two plate-wire electrodes may be interchanged.

Referring to fig. 10, in the present application, the first electrode plate 3632 and the second electrode plate 3633 may be further provided as plate-plate mesh-shaped counter electrodes.

In some embodiments of the present application, which are not shown, the first electrode plate 3632 and the second electrode plate 3633 may be provided on the plate-line-shaped counter electrode, and a plate electrode or a line electrode may be provided above and below the base plate 3631.

In some embodiments of the present application, which are not shown, the first electrode plate 3632 and the second electrode plate 3633 may be provided on the plate-shaped counter electrode, and a plate electrode or a wire electrode may be provided above and below the base plate 3631.

The discharge parameters in this embodiment are: the two electrode voltages are 2 positive and negative high voltages of the same frequency and same amplitude and opposite phase of the cosine pulse, and the peak value range of the cosine positive high voltage is as follows: 1.5-2.8 kv, corresponding cosine negative high-voltage peak value range: -1.5 to-2.8 kv. The distance between the two electrodes corresponding to the above voltage was 20mm.

The electrode voltage may be a cosine pulse negative high voltage (cosine negative high voltage peak value range: 2.5 to-4.5 kv) or a cosine pulse positive high voltage (cosine positive high voltage peak value range: 2.5 to 4.5 kv), and the relative voltage of the counter electrode to the high voltage electrode is "0" in this case. The distance between the two electrodes corresponding to the above voltage was 20mm.

In some implementations of some embodiments, referring to fig. 8, the distance between the first electrode plate 3632 and the substrate plate 3631 is 0.1mm-5mm, and likewise, the distance between the second electrode plate 3633 and the substrate plate 3631 is 0.1mm-5mm.

Based on the distance between the two electrodes, the DBD discharge voltage is relatively low, so that the photocatalyst can be efficiently excited, ozone is not generated, or the ozone generation amount is low and is lower than the user perception threshold, therefore, the photocatalyst catalysis unit 363 using the DBD discharge coupling photocatalyst can continuously operate, the odor removal speed is accelerated, the odor removal efficiency is improved, and the operation control program is not required to be set to reduce the discharge time and frequency in order to control the ozone at a lower concentration like the common sterilizing ion generating unit 36, so that the odor removal speed is reduced.

In the related art, ultraviolet light is generally adopted to excite photocatalyst or photoelectric catalytic luminescence catalyst, but ultraviolet light is utilized to excite photocatalyst which can only excite the surface of the irradiated carrier, the photoelectric conversion efficiency of ultraviolet light is also lower, the problem of low energy utilization rate exists, and the problem of electron and hole recombination is delayed by arranging an external bias electric field in the photoelectric catalysis, so that the catalysis efficiency is improved, but the problems of low energy utilization rate and high cost exist. Compared with the implementation mode, the application has the advantages of high energy utilization rate, low cost and faster odor removal speed by utilizing the dielectric barrier discharge to couple the photocatalyst. In some embodiments, the refrigerator further comprises an ambient temperature detection device 8, which is disposed outside the refrigerator body and is used for detecting a temperature value of the ambient environment around the refrigerator body during the operation of the refrigerator. In the embodiment of the application, whether the sterilization and odor removal actions are started during defrosting are judged in an auxiliary mode according to the temperature in the environment.

In some implementations of this embodiment, referring to fig. 3, the refrigerator further includes a cold catalyst catalysis unit 364, where the cold catalyst catalysis unit 364 is disposed on a side of the internal air duct 35 near the air outlet 33, and specifically, the cold catalyst catalysis unit 364 is disposed on a side of the photocatalyst catalysis unit 363 near the air outlet 33, for further adsorbing and decomposing odor molecules in the air, and degrading ozone generated by the high-voltage discharge of the strong oxidizing ion generating unit 362.

The cold catalyst catalysis unit 364 comprises a cold catalyst substrate, a plurality of through holes are formed in the cold catalyst substrate, a cold catalyst layer is wrapped on the outer surface of the cold catalyst substrate, air flow in the shell 31 flows through the cold catalyst layer and then flows back into the box body through the air outlet 33, specifically, air flow in the shell 31 after being reacted by strong oxidation ions, positive ions and negative ions passes through the cold catalyst layer, and the air flow is further cleaned, so that the cleaning effect is ensured. The cold catalyst substrate is illustratively a porous ceramic, the surface of which is coated with a cold catalyst.

In some embodiments of the present embodiment, which are not shown in the drawings, the refrigerator further includes an ethylene removing unit for removing ethylene in the refrigerator body, and in this way, ethylene is an endogenous ripening physiological active factor released by the respiratory jump type fruits and vegetables when the fruits and vegetables are ripened after picking, and the reduction of the ethylene content in the storage environment can effectively prolong the fresh keeping of the fruits and vegetables.

Referring to fig. 11, the refrigerator in the embodiment of the present application further includes a controller 6, and the controller 6 acquires various operation parameters of the refrigerator through various control programs stored in a memory, and thereby controls the operations of the various parts of the refrigerator and responds to the operations of a user. The controller 6 may control the operation state of the sterilizing ion generating unit 36 according to the detected state of the refrigerator to implement the sterilizing and deodorizing functions of the refrigerator body.

The controller 6 controls the overall operation of the refrigerator, for example, in response to a received sterilization and smell removal instruction issued by a user, the controller 6 may perform an operation related to an object selected by the sterilization and smell removal instruction.

In some embodiments, the controller 6 includes at least one of a central processing unit (Central Processing Unit, CPU), a video processor, an audio processor, a graphics processor (Graphics Processing Unit, GPU), RAMRandom Access Memory, RAM), ROM (Read-Only Memory, ROM), first to nth interfaces for input/output, a communication Bus (Bus), and the like.

In the illustrated embodiment of the present application, the controller 6 refers to a device that can generate an operation control signal, instructing the refrigerator to execute a control instruction, based on the instruction operation code and the timing signal.

The embodiment of the present application further provides a schematic hardware structure of the controller 6, as shown in fig. 11, where the controller 6 includes a processor 83, and optionally, 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 by a bus 81.

The processor 83 may be a central processor 83 (central processing unit, CPU), a general purpose processor 83 network processor 83 (network processor, NP), a digital signal processor 83 (digital signalprocessing, DSP), a microprocessor 83, a microcontroller 68, a programmable logic device (programmable logicdevice, PLD), or any combination thereof. The processor 83 may also be any other means having processing functions, such as a circuit, a device or a software module. The processor 83 may also include a plurality of CPUs, and the processor 83 may be one single-core (single-CPU) processor 83 or may be a multi-core (multi-CPU) processor 83. The processor 83 herein may refer to one or more devices, circuits, or processing cores for processing data (e.g., computer program instructions).

The memory 82 may be a read-only memory 82 (ROM) or other type of static storage device that may store static information and instructions, a random access memory 82 (random access memory, RAM) or other type of dynamic storage device that may store information and instructions, or an electrically erasable programmable read-only memory 82 (electrically erasable programmable read-only memory), a compact disc read-only memory (CD-ROM) or other optical disk storage, optical disk storage (including compact discs, laser discs, optical discs, digital versatile discs, blu-ray discs, etc.), magnetic disk storage media or other magnetic storage devices, or any other medium that can be used to carry or store desired program code in the form of instructions or data structures and that can be accessed by a computer, as embodiments of the application are not limited in this regard. The memory 82 may be separate or integrated with the processor 83. Wherein the memory 82 may contain computer program code. The processor 83 is configured to execute computer program codes stored in the memory 82, thereby implementing the control method of the multi-split refrigerator 100 system provided by the embodiment of the application.

The communication interface 84 may be used to communicate with other devices or communication networks (e.g., ethernet, radio access network (radioaccess network, RAN), wireless local area network (wireless Iocal area networks, WLAN), etc. the communication interface 84 may be a module, circuit, transceiver, or any means capable of enabling communication.

The bus 81 may be a peripheral component interconnect standard (peripheral component interconnect, PCI) bus 81 or an extended industry standard architecture (extended industry standard architecture, EISA) bus 81 or the like. The bus 81 may be divided into an address bus 81, a data bus 81, a control bus 81, and the like. For ease of illustration, only one thick line is shown in fig. 11, but not only one bus 81 or one type of bus 81.

In some implementations of the present embodiment, the controller 6 is mounted on the door 2, and of course, the controller 6 may be mounted on the cabinet for layout.

In some implementations of the present embodiment, referring to fig. 1, the refrigerator further includes an image capturing device 5, the image capturing device 5 is installed inside the case, the image capturing device 5 is electrically connected to the controller 6, and the image capturing device 5 is configured to capture an image of a food storage area in the case and send the image to the controller 6. The controller 6 can judge whether the food storage area increases or decreases the food and the number and kind of the food according to the received image, so as to perform the sterilization and smell removal operation of the refrigerator. The image acquisition device 5 is illustratively provided as a camera that acquires images and sends the images to the controller 6.

It should be noted that, the controller 6 may perform image recognition according to the image collected by the image collecting device 5, obtain the number and change of the food materials after selecting the object, and compare the recognized object with the food material database stored in the interior to obtain the type of the food materials, where the internal image recognition technical scheme is not the key point of the technical scheme of the present application, and is not repeated.

In some implementations of the present embodiment, the image capturing device 5 may also be mounted on top of the front of the refrigerator compartment 1, in the liner 12, to capture changes in food material within the case.

In some implementations of the present example, referring to fig. 1, the refrigerator includes an odor detection device 4 for detecting the concentration of odor in the refrigerator and transmitting an odor concentration signal to a controller 6. Illustratively, the odor detecting device 4 is configured as an odor detecting sensor for detecting the odor concentration in the tank and sending an odor concentration signal to the controller 6, so that the controller 6 controls the corresponding odor removing component to remove the odor.

In some implementations of this embodiment, the controller is configured to determine that the concentration of the odor in the case is high when the concentration of the odor detected by the odor detecting device reaches a first preset concentration condition, and to perform removal when the photocatalyst catalyzing unit is turned on; when the odor concentration detected by the odor detection device reaches a second preset concentration condition, judging that the odor concentration in the box body is in a normal range, and closing the photocatalyst catalytic unit.

Referring to fig. 2, the controller 6 is electrically connected to the door closing detection unit 99, the odor detection device 4, the image collection device 5, the positive and negative ion generation unit 361, the strong oxidation ion generation unit 362, the photocatalyst catalysis unit 363, the ambient temperature detection device 8, the built-in fan 34 and the air duct fan 10, and receives the detected ambient temperature, the odor concentration and the image, the door opening and closing signals to control the operations of the positive and negative ion generation unit 361, the strong oxidation ion generation unit 362, the photocatalyst catalysis unit 363, the built-in fan 34 and the air duct fan 10.

In some implementations of this embodiment, in order to perform precise sterilization for the type of food material, the controller is configured to identify the type of food material in the case according to the image of the food material storage area collected by the image collecting device, determine a corresponding set operating time and set operating voltage of the sterilizing ion generating unit when the food material is on the perishable food material list, turn on the sterilizing ion generating unit, turn on the built-in fan, adjust the voltage output by the high voltage power supply to the set operating voltage to increase the number of ions emitted by the sterilizing ion generating unit, and turn off the sterilizing ion generating unit after the set operating time.

The list of perishable food materials includes food materials that are not easy to preserve and perishable, such as strawberries and cherries. It is known that the food materials in the perishable food material list are selected based on the characteristics of the food materials themselves.

Through the steps, sterilization can be performed according to the characteristics of the food materials, so that excessive sterilization is avoided, and the strong oxidizing ions in the box body are excessive to oxidize the food materials, which is not beneficial to the preservation of the food materials; meanwhile, the energy consumption is reduced, quantitative sterilization is realized, and the experience of a user can be improved.

With reference to fig. 16, control logic for sterilization according to the type of food material will be described.

The image acquisition device acquires an image and sends the image to the controller (step S1601);

the controller identifies the type of food material (step S1602); judging whether the food material is in the perishable food material list (step S1603);

in step S1603, if the food is in the perishable food list, step S1604 is performed, the built-in fan is turned on, the sterilizing ion generating unit is turned on, the corresponding output voltage of the high voltage power supply is adjusted to the set operating voltage, so as to increase the number of ions generated by the sterilizing ion generating unit, and the sterilizing ion generating unit is turned off after operating for the set operating time.

In step S1603, if the food material is not in the perishable food material list, no additional ion groups are needed, and the operation is normal. Step S1605 is executed to turn on the sterilizing ion generating unit, turn on the built-in fan, adjust the corresponding output voltage of the high voltage power supply to the normal operating voltage, and turn off the sterilizing ion generating unit after the normal setting time.

The set operating voltage is greater than the normal operating voltage, and the set operating time is greater than the normal set time.

In step S1603, the sterilizing ion generating unit may be kept in normal operation, and the built-in fan may be disabled. So as to perform sterilization in the box body.

In some implementations of this embodiment, the controller is configured to identify the number of food materials in the case based on the image of the food material storage area acquired by the image acquisition device, determine that the number of food materials stored in the refrigerator is smaller at the time when the number of food materials reaches the energy-saving number condition, turn on the energy-saving mode, and turn off the odor detection device. The energy saving quantity condition is set to be that the quantity of the food materials is smaller than a set value.

In some implementations of this embodiment, the controller is further configured to turn on the odor detection device when an increase in the number of food items within the enclosure is identified. Or when the number of the food materials in the identification box body is increased to exceed the energy-saving number condition, the odor detection device is started.

Referring to fig. 17, control logic of the refrigerator energy saving mode is explained.

The image acquisition device acquires an image and sends the image to the controller (step S1701);

the controller identifies the number of food materials (step S1702); judging whether the quantity of the food materials reaches the energy-saving quantity condition (step S1703);

in step S1703, if the number of food materials reaches the energy-saving number condition, step S1704 is executed, the refrigerator enters an energy-saving mode, and the odor detection device is turned off;

in step S1703, if the number of food materials does not reach the energy-saving number condition, step S1705 is executed, and the refrigerator is operated normally, and the odor detection device is kept operating.

In some implementations of this embodiment, the operating state of the photocatalyst catalytic unit is controlled according to the odor concentration within the refrigerator when the refrigerator is in the non-energy saving mode. Specifically, the controller 6 is configured to turn on the built-in fan 34 and turn on the photocatalyst unit 363 when the odor concentration detected by the odor detecting device 4 reaches the first preset concentration condition, and the air flow in the case passes through the surface of the photocatalyst unit 363 under the action of the built-in fan 34 to remove the odor molecules in the air flow. In this process, the air flow passes through the through holes, and the contact area between the air flow and the photocatalyst layer 3634 can be increased by the through holes of the substrate plate 3631.

Referring to fig. 12, the control logic of the refrigerator for intelligent deodorization is described on the basis that the refrigerator is provided with the odor detecting device 4 and the image capturing device 5 in the non-energy saving mode.

The odor detection device 4 detects the odor value in the refrigerating chamber 1 in the box body in real time (step S1101), and in the application, the odor value is divided into a first gear, a second gear and a third gear from high to low, and the first gear, the second gear and the third gear correspond to the high to three levels of odor smell perception of a user respectively;

judging whether the peculiar smell value meets the first gear or not (step S1102);

in step S1102, if the odor value satisfies the first gear, step S1103 is executed to determine whether the box is still in a closed state;

in step S1103, if the case is in the closed state, step S1104 is executed to turn on the photocatalyst catalysis unit 363, turn on the internal fan 34 and control the internal fan 34 to run at the first rotational speed, so as to quickly and efficiently remove the odor; here, the built-in fan 34 includes at least two operation rates of a first rotation speed and a second rotation speed, and the first rotation speed is greater than the second rotation speed.

After executing step S1104, executing step S1110 to determine whether the odor value satisfies the second gear;

in step S1110, if the odor value satisfies the second gear, step S1107 is executed;

In step S1110, if the odor value does not satisfy the second gear, step S1104 is continuously executed;

in step S1103, if the case is not in the closed state, the step S1103 is continuously executed;

in step S1102, if the odor value does not satisfy the first gear, step S1105 is executed to determine whether the odor value satisfies the second gear;

in step S1105, if the odor value satisfies the second gear, step S1106 is executed to determine whether the box is still in a closed state;

in step S1106, if the case is in the closed state, step S1107 is executed to turn on the photocatalyst unit 363, turn on the built-in fan 34 and control the built-in fan 34 to run at the second rotation speed;

after executing step S1107, executing step S1111, and determining whether the odor value satisfies the third gear;

in step S1111, if the odor value satisfies the third gear, step S1109 is performed;

in step S1111, if the odor value does not satisfy the third gear, step S1107 is continuously performed;

in step S1106, if the box is in an unoccluded state, step S1106 is performed;

in step S1105, if the odor value does not satisfy the second gear, step S1108 is executed to determine whether the odor value satisfies the third gear;

In step S1108, if the odor value satisfies the third gear, step S1109 is performed to turn off the photocatalyst unit 363 and turn off the built-in fan 34.

In the above steps, the odor in the case is increased and introduced by the outside air or the outside substances, and the odor concentration is not increased in the door-closed state. And stopping the odor removing work if the door is suddenly opened in the odor removing process.

In the above deodorizing process, if the door 2 of the refrigerator is opened, the photocatalyst unit 363 is immediately turned off and the fan is turned off. Through the control method, the linkage of the odor sensor and the odor removing component can be realized, intelligent odor removing according to needs is realized, the odor removing speed is high, the efficiency is high, and the user perception, the user interaction and the energy conservation are taken into account.

In some implementations of this embodiment, before turning on the photocatalyst unit 363, it is necessary to determine whether the time of the photocatalyst unit 363 in the shutdown state reaches the set shutdown time, and if the time of the photocatalyst unit 363 in the shutdown state does not reach the set shutdown time, the photocatalyst unit 363 is turned on after waiting for the set shutdown time.

In some implementations of the present embodiment, referring to fig. 1, the refrigerator further includes a door closing detection assembly 9, the door closing detection assembly 9 being mounted on the door 2 or the cabinet, the door closing detection assembly 9 being configured to detect a state of the door 2 and transmit a door opening signal or a door closing signal to the controller 6. The door closing detecting assembly 9 is provided as a door closing detecting sensor for detecting whether the tank is in a closed state, and can determine whether removal of planktonic bacteria is required accordingly.

In some implementations of this embodiment, the controller is configured to determine whether the state of the case is a closed state before turning on the sterilizing ion generating unit and the photocatalyst catalyzing unit, so as to ensure a closed state required for sterilizing and deodorizing the case, and if the state of the case is the closed state, turn on the sterilizing ion generating unit or the photocatalyst catalyzing unit according to a set program.

On the basis of the technical scheme, the positive and negative ion generating units and the strong oxidation ion generating units can be turned on in a targeted mode, specifically, the positive and negative ion generating units and/or the strong oxidation ion generating units can be turned on according to main bacterial types in the box body, when the bacterial types are planktonic bacteria, the positive and negative ion generating units are turned on, and when the bacterial types are adherent bacteria, the strong oxidation ion generating units are turned on.

Specifically, the main bacteria introduced in the door opening process can be judged according to the image acquisition device 5, and the positive and negative ion generation unit 361 or the strong oxidation ion generation unit 362 are opened in a targeted manner, so that the accurate sterilization is realized, and meanwhile, the energy consumption of the refrigerator is reduced.

In some implementations of this embodiment, before turning on the positive and negative ion generating units 361, it is necessary to determine whether the time in which the positive and negative ion generating units 361 are in the stopped state reaches the set stopped time, and if the time in the stopped state does not reach the set stopped time, the positive and negative ion generating units 361 are turned on after waiting for the set stopped time.

Similarly, before turning on the strong oxidizing ion generating unit 362, it is necessary to determine whether the time in which the strong oxidizing ion generating unit 362 is in the stopped state reaches the set stopped time, and if the time in the stopped state does not reach the set stopped time, the strong oxidizing ion generating unit 362 is turned on after waiting for the set stopped time.

The sterilization function in the application can determine whether the main pollution bacteria newly introduced into the refrigerator are surface adhesion bacteria or planktonic bacteria in the air in the refrigerator through the image acquisition device 5 and the door closing detection assembly 9, and can perform targeted sterilization.

Referring to fig. 12, the sterilization logic of the refrigerator in the present application is explained.

Detecting whether new food is put into the refrigerator or not in real time through the image acquisition device 5 when the refrigerator is opened (step S1201);

if no new food is put into the refrigerator in the step S1201, it is determined that the main contamination bacteria newly introduced into the refrigerator are air plankton bacteria introduced by the door opening of the refrigerator, step S1202 is executed, and it is determined whether the refrigerator body is in a closed state;

if the case is in the closed state in step S1202, step S1203 is executed to determine whether the positive and negative ion generating unit 361 reaches the first preset duration;

in step S1203, if the positive and negative ion generating unit 361 reaches the first preset duration, step S1204 is executed to turn on the positive and negative ion generating unit 361 and turn on the built-in fan 34;

It should be noted that the first preset duration may be preset, may be 30 minutes, may be 60 minutes, or may be other time, which is not limited in this aspect of the present invention. The ion circuit of the positive and negative ion generating unit 361 can be prevented from being repeatedly started in a short time by setting the first preset time period, and energy waste is avoided.

Judging whether the operation duration of the positive and negative ion generating unit 361 reaches a second preset duration (step S1205);

in step S1205, if the operation duration of the positive and negative ion generating unit 361 reaches the second preset duration, the method is executed in step S1206, and the positive and negative ion generating unit 361 is turned off, and the built-in fan 34 is turned off;

in step S1205, if the operation duration of the positive and negative ion generating unit 361 does not reach the second preset duration, step S1205 is executed;

it should be noted that the second preset duration may be preset, may be 5 minutes, may be 10 minutes, or may be other time, which is not limited in this aspect of the present invention. The ion circuit of the positive and negative ion generating unit 361 can be prevented from continuously running for a long time by setting the second preset time length, and energy waste is avoided.

In step S1203, if the positive and negative ion generating unit 361 does not reach the first preset duration, step S1203 is executed;

Whether the refrigerating chamber 1 of the refrigerator is opened or not is monitored in real time during the operation of the ion circuits of the positive and negative ion generating units 361, and if the opening signal is detected, the ion circuits of the positive and negative ion generating units 361 are immediately turned off and the operation of the built-in fan 34 is stopped.

In step S1202, if the case is not in the closed state, step S1206 is performed to turn off the positive and negative ion generating unit 361 and turn off the built-in fan 34;

if in step S1201, a new food material is put into the refrigerator, it is determined that the main contaminant bacteria newly introduced into the refrigerator are attached bacteria introduced by opening the door of the refrigerator, step S1207 is performed, and it is determined whether the refrigerator body is in a closed state;

if the box is in the closed state in step S1207, step S1208 is executed to determine whether the strong oxidizing ions generating unit 362 reaches the third preset duration;

in step S1208, if the strong oxidizing ion generating unit 362 reaches the third preset duration, step S1209 is executed to turn on the strong oxidizing ion generating unit 362 and turn on the built-in fan 34;

it should be noted that the third preset duration may be preset, may be 30 minutes, may be 60 minutes, or may be other time, which is not limited in this aspect of the present invention. The ion circuit of the strong oxidizing ion generating unit 362 can be prevented from being repeatedly started in a short time by setting the third preset time period, and energy waste is prevented from being caused.

Judging whether the operation duration of the positive and negative ion generating unit 361 reaches a fourth preset duration (step S1210);

it should be noted that the fourth preset duration may be preset, may be 5 minutes, may be 10 minutes, or may be other time, which is not limited in this aspect of the present invention. The ion circuit of the strong oxidation ion generating unit 362 can be prevented from continuously operating for a long time by setting the fourth preset time period, so that energy waste is avoided and ozone exceeding is avoided.

In step S1210, if the operation duration of the strong oxidizing ion generating unit 362 reaches the fourth preset duration, the process is performed in step S1211, and the positive and negative ion generating unit 361 is turned off, and the built-in fan 34 is turned off;

in step S1210, if the operation duration of the strong oxidizing ion generating unit 362 does not reach the fourth preset duration, step S1210 is performed;

in step S1208, if the strong oxidizing ions generating unit 362 does not reach the third preset duration, step S1208 is performed;

in step S1207, if the case is not in the closed state, step S1212 is performed to turn off the positive and negative ion generating unit 361 and turn off the built-in fan 34;

whether or not the refrigerating chamber 1 of the refrigerator is opened is monitored in real time during the operation of the ion circuit of the strong oxidizing ion generating unit 362, and if the opening signal is detected, the ion circuit of the strong oxidizing ion generating unit 362 is immediately turned off and the operation of the built-in fan 34 is stopped.

It should be noted that, above-mentioned whether judge whether increase new food in the box at first, then detect the door closing signal and immediately carry out the pertinence degerming again, this kind of mode is although need carry out periodic collection, has improved the demand to the hardware, but has opened the node of degerming in advance, has accelerated the process of degerming.

It can be known that the reason why the door closing signal is detected first and then the image acquisition is performed is that: firstly, judging that the refrigerator is in a closed environment, namely judging that new bacteria are not introduced at the moment so as to ensure the sterilization efficiency. Then, the image is acquired, so that the working frequency of the image acquisition device 5 is reduced, and real-time detection is not needed.

In some implementations of this embodiment, the controller is configured to turn on the internal fan 34 to accelerate the gas flow rate in the housing while turning on the strong oxidizing ion generating unit 362 or the positive and negative ion generating unit 361 when the controller receives the strong sterilization signal, turn off the internal fan 34 after a period of operation, and turn off the strong oxidizing ion generating unit 362 or the positive and negative ion generating unit 361 in operation. It will be appreciated that in some modes, it may be set to turn on the built-in fan 34 when the strong oxidizing ion generating unit 362 and the positive and negative ion generating unit 361 are operated, so as to accelerate the sterilization efficiency.

In some implementations of this embodiment, after receiving the door opening signal sent by the door closing detection component 9, the calculation is started, and after receiving the door closing signal sent by the door closing detection component 9, the positive and negative ion generating unit 371 is turned on to remove planktonic bacteria in the box when the door opening time of the refrigerator reaches the preset door opening time.

The set working voltages include working voltages of the strong oxidizing ion unit and/or working voltages of the positive and negative ion generating units, and the set working times include working voltages of the strong oxidizing ion unit and/or working times of the positive and negative ion generating units; the set operating voltage includes the operating voltage of the strong oxidizing ion unit, and the set operating time includes the operating voltage of the strong oxidizing ion unit.

Referring to fig. 15, the sterilization control logic for simultaneously judging whether the door opening time reaches the preset door opening time and whether food materials are added in the case will be described.

Detecting a door opening signal sent by the door closing detection assembly 9 (step S1413); detecting whether new food is put into the refrigerator or not in real time through the image acquisition device 5 when the refrigerator is opened (step S1401);

starting to calculate a door opening time of the refrigerator (step S1412);

If no new food is put into the refrigerator in step S1401, it is determined that the main contaminant bacteria newly introduced into the refrigerator are air-borne bacteria introduced by the opening of the refrigerator,

executing step S1402, to determine whether the case is in a closed state;

if the case is in the closed state in step S1402, step S1403 is executed to determine whether the positive and negative ion generating unit 361 reaches the first preset duration;

in step S1403, if the positive and negative ion generating unit 361 reaches the first preset duration, step S1404 is executed, the positive and negative ion generating unit 361 is turned on, and the built-in fan 34 is turned on;

Judging whether the operation duration of the positive and negative ion generating unit 361 reaches a second preset duration (step S1405);

in step S1405, if the operation duration of the positive and negative ion generating unit 361 reaches the second preset duration, the step S1406 is executed, and the positive and negative ion generating unit 361 is turned off, and the built-in fan 34 is turned off;

In step S1405, if the operation duration of the positive and negative ion generating unit 361 does not reach the second preset duration, step S1405 is executed;

In step S1403, if the positive and negative ion generating unit 361 does not reach the first preset duration, step S1403 is performed;

In step S1402, if the case is not in the closed state, step S1402 is performed, or the positive and negative ion generating unit 361 is turned off, and the built-in fan 34 is turned off;

if in step S1401, a new food is put into the refrigerator, it is determined that the main contaminant bacteria newly introduced into the refrigerator are attached bacteria introduced by the refrigerator opening;

identifying the type of food material (step S1417); judging whether or not the food material is in the perishable food material list (step S1418);

In step S1418, if the food is in the perishable food list, step S1419 is performed to determine a set operating time and a set operating voltage of the corresponding sterilizing ion generating unit;

in step S1418, if the food is not in the perishable food list, executing step S1420 to determine a normal operation time and a normal operation voltage of the corresponding sterilizing ion generating unit;

step S1407 is executed to determine whether the case is in a closed state;

if the case is in the closed state in step S1407, step S1408 is executed to determine whether the strong oxidizing ion generating unit 362 reaches the third preset duration; step S1414 is executed to judge whether the door opening time of the refrigerator reaches the preset door opening time;

in step S1414, if the door opening time of the refrigerator reaches the preset door opening time; step S1415 is performed to turn on the positive and negative ion generating unit 361 and turn on the built-in fan 34;

in step S1414, if the door opening time of the refrigerator does not reach the preset door opening time, step S1416 is executed to keep the positive and negative ion generating unit 361 closed;

in step S1408, if the strong oxidizing ion generating unit 362 reaches the third preset duration, step S1409 is executed to turn on the strong oxidizing ion generating unit 362, adjust the corresponding output voltage of the high voltage power supply to the set operating voltage to increase the number of ions emitted by the strong oxidizing ion generating unit, and turn on the built-in fan 34;

Judging whether the operation duration of the positive and negative ion generating unit 361 reaches the set operation time (step S1410);

the set working time is preset, may be 5 minutes, may be 10 minutes, or may be other time, which is not limited in the present invention. The requirement of specific food materials can be met through setting the working time, and meanwhile, the ion circuit of the strong oxidation ion generating unit 362 is prevented from continuously running for a long time, so that energy waste is avoided and ozone exceeding is avoided.

In step S1410, if the operation duration of the strong oxidizing ion generating unit 362 reaches the set operation time, the process is performed in step S1411, and the positive and negative ion generating unit 361 is turned off, and the built-in fan 34 is turned off;

in step S1410, if the operation duration of the strong oxidizing ions generating unit 362 does not reach the set operation time, step S1410 is performed;

In step S1408, if the strong oxidizing ion generating unit 362 does not reach the third preset duration, step S1408 is performed;

in step S1407, if the casing is not in the closed state, step S1407 is performed.

In the above steps, if no new food is introduced into the case, but the opening time reaches the preset opening time, the working speed of the built-in fan 34 may be increased to speed up the air flow rate and/or the voltage of the ion circuit of the strong oxidation ion generating unit 362 may be increased to increase the ion concentration, so as to achieve faster sterilization and improve the sterilization efficiency.

In some implementations of this example, the operating time of the positive and negative ion generating units 361 and the strong oxidizing ion generating units 362 is related to the type, number, and opening time of the case.

Specifically, the operating time of the strong oxidizing ion generating unit 362 and/or the positive and negative ion generating unit 361 is related to the door opening time or the number and kind of food materials. The longer the door opening time, the longer the strong oxidizing ion generating unit 362 operates within a certain range; the more the number of food materials newly added, the longer the operation time of the positive and negative ion generating unit 361.

Regarding the kind of the food material, when the food material belongs to a perishable food material, the operating time of the positive and negative ion generating units 361 and the strong oxidizing ion generating units 362 increases. Exemplary, food materials that may be perishable include strawberries, cherries.

It will be appreciated that the above-described influencing factors may be superimposed to influence the operating time of the ion generating unit.

The foregoing is merely illustrative of the present invention, and the present invention is not limited thereto, and any person skilled in the art will readily recognize that variations or substitutions are within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A refrigerator, comprising:

a cleaning device provided in the case for sterilizing the inside of the case, the cleaning device further comprising:

the sterilizing ion generating unit is arranged in the internal air duct and is used for removing bacteria of the box body by utilizing ion groups generated by the sterilizing ion generating unit;

The high-voltage power supply is used for emitting high-voltage so as to discharge the sterilizing ion generating unit to form ion groups;

the refrigerator further comprises a controller, wherein the controller is configured to identify the type of food materials in the refrigerator according to the image of the food material storage area acquired by the image acquisition device;

when the food is in the perishable food list, the set working time and the set working voltage of the sterilizing ion generating unit are determined, the sterilizing ion generating unit is started, the built-in fan is started, the corresponding output voltage of the high-voltage power supply is adjusted to the set working voltage so as to increase the ion number generated by the sterilizing ion generating unit, and the sterilizing ion generating unit is closed after working for the set working time.

2. The refrigerator of claim 1, further comprising:

the cleaning device further comprises a photocatalyst catalytic unit which is arranged in the shell and is used for removing peculiar smell in the box body by utilizing ion groups generated by the cleaning device;

the controller is configured to judge that the concentration of the peculiar smell in the box body is too high at the moment when the concentration of the peculiar smell detected by the smell detection device reaches a first preset concentration condition, and start the photocatalyst catalytic unit;

When the odor concentration detected by the odor detection device reaches a second preset concentration condition, judging that the odor concentration in the box body is in a normal range, and closing the photocatalyst catalytic unit.

3. The refrigerator according to claim 2, wherein the controller is configured to identify the amount of food materials in the refrigerator body based on the image of the food material storage area acquired by the image acquisition device, and to turn off the odor detection device when the amount of food materials reaches an energy saving amount condition.

4. The refrigerator of any one of claims 1 to 3, further comprising a door for opening or closing the cabinet;

the controller is configured to determine whether the state of the case is a closed state before turning on the sterilizing ion generating unit, and turn on the sterilizing ion generating unit if the state of the case is a closed state.

5. The refrigerator according to claim 1, wherein the sterilizing ion generating unit includes a transmitting electrode structure, one side of the transmitting electrode structure is provided with a needle tip structure, the needle tip structure is provided at one side of the built-in fan close to the air outlet, and the transmitting electrode structure is used for forming strong oxide ion groups by corona discharge of the needle tip structure by using a high-voltage power supply provided by the high-voltage power supply so as to remove planktonic bacteria in the refrigerator;

The controller controls the concentration of the generated strong oxidizing ions by utilizing a discharge control rule according to the corona ion circuit so as to enable the concentration of the strong oxidizing ions to be below a set threshold value, and the set threshold value is set according to the perception degree of a user.

6. The refrigerator according to claim 1 or 5, wherein the sterilizing ion generating unit further comprises:

the positive electrode and the negative electrode form a positive ion group and a negative ion group by utilizing high-voltage provided by the high-voltage power supply so as to remove attached bacteria in the box body;

the controller controls the high voltage power supply to the positive electrode and the negative electrode according to the control positive and negative ion circuits to control the concentration of the generated positive ion group and negative ion group.

7. The refrigerator of claim 2, wherein the photocatalyst catalytic unit is disposed in the housing and is disposed transversely in the internal air duct, the photocatalyst catalytic unit further comprising:

A first electrode plate is arranged on the first electrode plate,

the substrate plate is arranged between the first electrode plate and the second electrode plate, and a plurality of through holes are formed in the substrate plate along the direction of airflow direction;

a photocatalyst layer which is wrapped on the outer surface of the substrate plate, and through which the air flow flowing out of the internal fan flows;

and exciting the photocatalyst layer to generate strong oxidation molecules by utilizing high-voltage electric fields generated by the first electrode plate and the second electrode plate so as to decompose odor molecules in the box body.

8. The refrigerator according to claim 2, wherein the sterilizing ion generating unit and/or the photocatalyst catalyzing unit stops working when detecting that the door closing detecting assembly sends a door opening signal during the operation of the sterilizing ion generating unit and/or the photocatalyst catalyzing unit, and the built-in fan is turned off.

9. The refrigerator according to claim 2, wherein before turning on the sterilizing ion generating unit and/or the photocatalyst catalyzing unit, it is required to determine whether or not a time in which the sterilizing ion generating unit and/or the photocatalyst catalyzing unit is in a stopped state reaches a corresponding set stop time;

10. The refrigerator of claim 4, wherein an operating time of the sterilizing ion generating unit is adjustable according to the kind, number and opening time of the cabinet.