CN219934368U

CN219934368U - Refrigerator with a refrigerator body

Info

Publication number: CN219934368U
Application number: CN202321490981.3U
Authority: CN
Inventors: 栾福磊; 杨春; 付婧
Original assignee: Hisense Refrigerator Co Ltd
Current assignee: Hisense Refrigerator Co Ltd
Priority date: 2023-06-09
Filing date: 2023-06-09
Publication date: 2023-10-31
Anticipated expiration: 2033-06-09

Abstract

The application provides a refrigerator, which comprises a refrigerator body and a cleaning device arranged in the refrigerator body, wherein the cleaning device is used for removing bacteria and/or peculiar smell in the refrigerator body, the cleaning device further comprises a shell provided with an air inlet, an air outlet and an internal air channel, a built-in fan and an ion generating device, the built-in fan is arranged on one side of the internal fan, which is close to the air inlet, the ion generating device is arranged on one side of the built-in air channel, which is close to the air outlet, the ion generating device is used for generating ion groups for removing bacteria and/or peculiar smell in the refrigerator body, the built-in fan is used for accelerating airflow in the refrigerator body and assisting the diffusion of ions, air in the refrigerator body enters the internal air channel through the air inlet, flows through the ion generating device under the action of the built-in fan, flows back to the refrigerator body through the air outlet after contacting with the ion groups generated by the ion generating device, and circulates in this way, and therefore the air in the refrigerator body is sterilized and the refrigerator body is realized.

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 technology includes photocatalysis sterilization, plasma sterilization, anion sterilization, ultraviolet sterilization, sampling sterilization, silver ion bactericidal lamp, but the contact efficiency with the air in the box is limited, and degerming smell-removing efficiency is lower, can influence user's use experience. In view of this, the present application has been proposed.

Disclosure of Invention

The application provides a refrigerator, which is provided with a cleaning device arranged in the refrigerator body and used for removing bacteria and peculiar smell in the refrigerator body, and meanwhile, the cleaning device is internally provided with an ion generating device capable of generating ion groups and a built-in fan used for accelerating the flow speed of air flow, and the ion generating device and the built-in fan are matched to improve the movement of the ion groups, so that the ions are fully contacted with the peculiar smell and bacteria in the refrigerator body, and the efficiency of sterilization and smell removal is improved.

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

a case;

the cleaning device, it locates in the box for get rid of bacterium and/or peculiar smell in the 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 for air flow;

the built-in fan is arranged on one side of the internal air channel, close to the air inlet, and is used for accelerating airflow flow and ion diffusion in the box body;

The ion generating device is arranged in the internal air duct and positioned at one side of the built-in fan close to the air outlet, and is used for generating ion groups for removing bacteria and/or peculiar smell in the box body;

air in the box body enters the internal air channel through the air inlet, flows through the ion generating device under the action of the internal fan, contacts with ion groups generated by the ion generating device, and flows back to the box body through the air outlet.

In some embodiments of the application, the cleaning device further comprises a high voltage power source electrically connected to the ion generating device, the high voltage power source for providing a high voltage to the ion generating device to discharge the ions to form ion packets.

In some embodiments of the present application, the ion generating device further includes an emitter electrode structure, one side of the emitter 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 emitter electrode structure is used for utilizing high voltage provided by the high voltage power supply to make the needle tip structure form a strong oxide ion group through corona discharge.

In some embodiments of the application, the ion generating device 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 and negative electrodes form positive and negative ion groups using a high voltage provided by a high voltage source.

In some embodiments of the application, the ion generating device further comprises a photocatalyst catalytic unit, the photocatalyst catalytic unit further comprising:

the substrate plate is arranged on one side of the built-in fan close to the air outlet, and a plurality of through holes are formed in the substrate plate along the airflow direction;

the photocatalyst layer is wrapped on the outer surface of the substrate plate, and air flow flowing out of the built-in fan flows through the photocatalyst layer and then flows back to the box body through the air outlet;

a first electrode plate;

the second electrode plate is arranged opposite to the first electrode plate and is positioned at two sides of the substrate plate, and the first electrode plate and the second electrode plate are electrically connected with a high-voltage power supply;

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 application, further comprising:

the box door is used for opening or closing the box body;

a controller provided on the door;

the image acquisition device is arranged in the box body and is electrically connected with the controller, and the image acquisition device is used for acquiring images of the food material storage area in the box body and sending the images to the controller.

In some embodiments of the present application, the case includes a liner forming a storage space and a housing connected to an outer side of the liner, a main air duct being formed between the liner and the housing;

the odor detection device is arranged in the main air duct and is used for detecting the odor concentration in the box body and sending an odor concentration signal to the controller.

In some embodiments of the present application, a door closing detection assembly is provided on the door, and the door closing detection assembly is used for detecting the state of the door and sending a door opening signal or a door closing signal to the controller.

In some embodiments of the present application, the cleaning device further includes a cold catalyst substrate, the cold catalyst substrate is disposed on one side of the housing near the air outlet, a plurality of through holes are disposed on the cold catalyst substrate, the outer surface of the cold catalyst substrate is wrapped with a cold catalyst layer, and the air flow in the housing flows through the cold catalyst layer and then flows back into the housing through the air outlet.

In some embodiments of the application, the distance between the first and second electrode plates and the substrate plate is in the range of 0.1mm to 5mm.

In the above embodiment, the refrigerator provided by the application includes a case, a cleaning device disposed in the case, the cleaning device being used for removing bacteria and/or odor in the case, the cleaning device further including a housing disposed in the case, the housing including an air inlet, an air outlet and an internal air duct for air flow; the interior wind channel is interior including setting up at the built-in fan that is close to the air intake and the ion generating device of setting up the one side that built-in fan is close to the air outlet, built-in fan can be used for accelerating the air current flow in the box, ion generating device can produce the ion group that is used for getting rid of bacterium and/or peculiar smell in the box, in the in-process of carrying out degerming and purifying the flavor, open ion generating device and built-in fan, the air in the box gets into interior wind channel through the air intake, the effect of built-in fan flows through ion generating device, and contact with ion group that ion generating device produced and be absorbed and decomposed, then flow back to the box through the air outlet, and circulate with this, in order to realize the removal to the planktonic fungus of air in the box, food surface, the attached fungus of box inner side wall and peculiar smell in the air, improve the quality of preserving food of refrigerator, improve user's experience.

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;

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 7; 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;

an ion generating device 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 invention, 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 invention 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 7, a storage room is formed in the box body 7, 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 of the present application 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 the storage space, the refrigerator door 2 can be used for enabling the refrigerator body 7 to form a closed space so as to facilitate sterilization and smell removal of the inside of the refrigerator body 7, new bacteria are prevented from being introduced, and air outside the refrigerator body 7 is enabled to pollute the air inside the refrigerator body 7.

The case 7 includes an inner container 12 defining a storage space, a housing 11 coupled to an outer side of the inner container 12 to form an external appearance of the refrigerator, and a heat insulating layer disposed between the inner container 12 and the housing 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 7, a refrigerating system is arranged in the main air duct, and cold air generated by the refrigerating system enters the box body 7 through the main air duct to cool food materials in the box body 7.

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, a cabinet 7 includes a top and a bottom disposed opposite to each other, and a refrigerator of the present application includes a cleaning device 3 disposed in the cabinet 7, and the cleaning device 3 may be disposed at the top of the cabinet 7, 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 an ion generating device 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 channel 35 and the air outlet 33 are communicated so that air in the box 7 enters the internal air channel 35 to react with ion groups generated by the ion generating device 36.

The built-in fan 34 is arranged in the internal air duct 35 and is positioned at one side close to the air inlet 32, and is used for accelerating the airflow in the box body 7, accelerating the diffusion of ions and strong oxidation active substances, improving the contact efficiency of air in the box body 7 and ion groups, accelerating the odor removal and sterilization, and improving the odor removal efficiency.

Ion generating means 36 are mounted in the internal air duct 35 and located in the internal fan 34 near some of the air outlet 33, the ion generating means 36 are used for generating ion groups for removing bacteria in the box 7, in general, the ion types in the ion groups may include strong oxidizing ions, positive ions, negative ions, etc., and the strong oxidizing ions include hydroxyl radicals (OH), ozone (O) by way of example ₃ ) The types of bacteria in the case 7 include planktonic bacteria in the air in the case 7, adhesion bacteria adhering to the inner side wall of the case 7 and food materials, and the like.

The air in the box 7 enters the internal air duct 35 through the air inlet 32, flows through the ion generating device 36 under the action of the internal fan 34, contacts with the ion group generated by the ion generating device, and flows back to the box 7 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 7 along with the air flow, so that the attached bacteria on the inner wall of the box body 7 or the surface of food materials are removed.

In some implementations of the present example, the cleaning device 3 further includes a high voltage power supply for providing a high voltage to the ion generating device 36 to discharge it into ion packets for use in sterilizing the interior 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 ion generating device 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 a needle tip corona discharge ₃ ) Atomic oxygen (O), ground oxygen (O), nitrogen oxides (NOx) and the like are diffused to the inner wall of the refrigerator and the surface of food to effectively kill and remove 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.

Referring to fig. 6 and 14, 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 on one side of the built-in fan 34 close to 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 power supply. 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 this embodiment, the ion generating device 36 further includes a positive and negative ion generating unit 361, and planktonic bacteria in the air in the refrigerator can be efficiently and quickly 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.

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 embodiment, the ion generating device 36 further includes a photocatalyst catalysis unit 363, where the photocatalyst catalysis unit 363 is disposed on a 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 with a photocatalyst, so as to realize a low-temperature plasma discharge and a photocatalyst/metal oxide catalyst catalysis 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 7 is sucked by 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 the airflow is improved, the surface area of the photocatalyst layer 3634 is increased, the odor removing efficiency is improved, and the air in the box 7 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 7 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 7.

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 which utilizes the DBD discharge to couple the 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 for controlling the ozone at a lower concentration like the common ion generating device 36 to reduce the discharge time and frequency, thereby reducing the odor removal speed.

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 7, for detecting a temperature value of an ambient environment around the refrigerator body 7 during 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.

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 can control the operating state of the ion generating device 36 according to the detected state of the refrigerator to realize the sterilizing and deodorizing functions of the refrigerator body 7.

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 signal processing, DSP), a microprocessor 83, a microcontroller 68, a programmable logic device (programmable logic device, 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 (radio access network, RAN), wireless local area network (wireless local 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 case 7 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 7, 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 the food storage area in the case 7 and send the image to the controller 6. The controller 6 can perform image recognition according to the received image to obtain the number, the kind and the corresponding change of the food materials in the box 7. The image acquisition device 5 is illustratively provided as a camera that acquires images and sends the images to the controller 6.

In some implementations of this embodiment, the image acquisition device 5 may also be mounted on top of the front of the refrigerating compartment 1, in the liner 12, to acquire changes in the food material within the case 7.

In some implementations of the present example, referring to fig. 1, the refrigerator further includes an odor detection device 4, the odor detection device 4 being installed in the main duct, the odor detection device 4 being configured to detect the concentration of the odor in the cabinet 7 and send a signal of the concentration of the odor to the controller 6. It is rational that the odor detecting device 4 is provided as an odor detecting sensor for detecting the odor concentration in the case 7 and transmitting an odor concentration signal to the controller 6 so that the controller 6 controls the corresponding odor removing part to remove the odor.

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.

With reference to fig. 12, control logic for performing intelligent deodorizing and sterilizing functions of the refrigerator is described, on the basis that the refrigerator is provided with the odor detecting device 4 and the image collecting device 5.

The odor detection device 4 detects the odor value in the refrigerating chamber 1 in the box body 7 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, which 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 case 7 is still in the closed state;

in step S1103, if the case 7 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 S1110 is continuously performed;

in step S1103, if the case 7 is not in the closed state, the step S1103 is continued;

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 case 7 is still in the closed state;

in step S1106, if the case 7 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 S1111 is continuously performed;

in step S1106, if the case 7 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 7 is considered to be introduced due to the increase of the outside air or the outside substances when the odor is rising, and the odor concentration is not considered to rise 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 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 7, 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 housing 7 is in a closed state, and can determine whether removal of planktonic bacteria is required accordingly.

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. 13, 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 step S1201, it is determined that the main contamination bacteria newly introduced into the refrigerator are air planktonic bacteria introduced by the door opening of the refrigerator, step S1202 is performed, and it is determined whether the case 7 is in a closed state;

if the case 7 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 application. 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 7 is not in the closed state, the positive and negative ion generating unit 361 is turned off, the built-in fan 34 is turned off, or the case state is continuously determined;

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 case 7 is in a closed state;

if in step S1207, the case 7 is in the closed state, step S1208 is executed to determine whether the strong oxidizing ion 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 7 is not in the closed state, the strong oxidizing ion generating unit 362 is turned off, the built-in fan 34 is turned off, or the case state is continuously determined;

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.

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 7 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 box 7, so that ethylene is an endogenous ripening physiological active factor released by the respiratory jump type fruits and vegetables during post-harvest ripening, and the reduction of ethylene content in the storage environment can effectively prolong the preservation of fruits and vegetables.

In the above embodiment, a refrigerator is provided, the refrigerator includes a case 7 and a cleaning device 3 disposed in the case 7, the cleaning device 3 is used for removing bacteria and/or odor in the case 7, the cleaning device 3 further includes a housing 31 having an air inlet 32, an air outlet 33 and an internal air duct 35, a built-in fan 34 disposed in the internal air duct 35 and an ion generating device 36, the built-in fan 34 is disposed on one side of the internal fan near the air inlet 32, the ion generating device 36 is disposed on one side of the built-in air duct near the air outlet 33, the ion generating device 36 is used for generating ion groups for removing bacteria and/or odor in the case 7, the built-in fan 34 is used for accelerating airflow in the case 7 and diffusion of auxiliary ions, air in the case 7 enters the internal air duct 35 through the air inlet 32, flows through the ion generating device 36 under the action of the built-in fan 34, and flows back into the case 7 through the air outlet 33 after contacting with ion groups generated by the ion generating device 36, and circulates in this way, thereby achieving the sterilization and odor removal of air in the case 7. By providing the built-in fan 34 in the cleaning device 3, on the one hand, the circulation of the air flow in the case 7 can be accelerated to improve the odor removal efficiency, and on the other hand, the diffusion of ions and strong oxidation active substances can be accelerated to accelerate the odor removal and sterilization speed of the cleaning device 3.

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 case;

a cleaning device provided in the tank for removing bacteria and/or odor in the tank, the cleaning device further comprising:

the built-in fan is arranged on one side of the internal air duct, which is close to the air inlet, and is used for accelerating airflow flow and ion diffusion in the box body;

the air in the box body enters the internal air duct through the air inlet, flows through the ion generating device under the action of the built-in fan, contacts with ion groups generated by the ion generating device, and flows back to the box body through the air outlet.

2. The refrigerator of claim 1, wherein the cleaning device further comprises a high voltage power source electrically connected to the ion generating device, the high voltage power source for providing a high voltage to the ion generating device to discharge the ion generating device to form ion groups.

3. The refrigerator of claim 2, wherein the ion generating device further comprises a transmitting electrode structure, one side of the transmitting electrode structure is provided with a needle tip structure, the needle tip structure is arranged on one side of the built-in fan close to the air outlet, and the transmitting electrode structure is used for utilizing high voltage provided by the high voltage power supply to enable the needle tip structure to form a strong oxide ion group through corona discharge.

4. The refrigerator of claim 2, wherein the ion generating device further comprises:

the positive electrode and the negative electrode form a positive ion group and a negative ion group by using a high voltage provided by the high voltage power supply.

5. The refrigerator of claim 2, wherein the ion generating device further comprises a photocatalyst catalytic unit, the photocatalyst catalytic unit further comprising:

a first electrode plate;

the second electrode plate is arranged opposite to the first electrode plate and is positioned on two sides of the substrate plate, and the first electrode plate is electrically connected with the high-voltage power supply.

6. The refrigerator of any one of claims 1-5, further comprising:

the box door is used for opening or closing the box body;

the controller is arranged on the box door;

the image acquisition device is arranged inside the box body and is electrically connected with the controller, and the image acquisition device is used for acquiring images of the food storage area in the box body and sending the images to the controller.

7. The refrigerator of claim 6, wherein the cabinet includes a liner forming a storage space and a housing connected to an outer side of the liner, a main air duct being formed between the liner and the housing;

8. The refrigerator of claim 6, further comprising a door closing detection assembly provided on the door, the door closing detection assembly detecting a state of the door and transmitting a door opening signal or a door closing signal to the controller.

9. The refrigerator of any one of claims 1 to 5, wherein the cleaning device further comprises a cold catalyst substrate, the cold catalyst substrate is arranged on one side of the shell close to the air outlet, a plurality of through holes are formed in the cold catalyst substrate, the cold catalyst layer is wrapped on the outer surface of the cold catalyst substrate, and air flow in the shell flows through the cold catalyst layer and then flows back into the box body through the air outlet.

10. The refrigerator of claim 5, wherein a distance between the first and second electrode plates and the base material plate ranges from 0.1mm to 5mm.