CN218955251U - Sterilizing and deodorizing assembly and refrigerator - Google Patents

Abstract

The embodiment of the application provides a sterilization and odor removal assembly and a refrigerator, comprising a bracket; a first electrode connected to the bracket; the second electrode is arranged opposite to the first electrode and is connected with the bracket; the surfaces of the first electrode and the second electrode are coated with a photocatalytic coating, and in the electrified state, the first electrode discharges to the second electrode to generate plasma and trigger the catalytic reaction of the photocatalytic coating so as to remove bacteria and peculiar smell in the refrigerator. The plasma that the deodorant subassembly that disinfects that this application provided produced can disinfect and decompose peculiar smell gas molecule, and the ultraviolet light that the plasma sent simultaneously can trigger the catalytic reaction of photocatalysis coating, further disinfects and get rid of peculiar smell to realize good deodorant effect that disinfects.

Description

Sterilizing and deodorizing assembly and refrigerator

Technical Field

The application relates to the technical field of food preservation, in particular to a sterilization and odor removal assembly and a refrigerator.

Background

The refrigerator is a refrigerating device for keeping stable low temperature, and the refrigerator is utilized to keep food materials in a relatively stable low temperature state, so that the preservation time is prolonged. In the family use, the food material of storing in the refrigerator is various, and the food material very easily produces peculiar smell and breeds the bacterium in the storage process, influences consumer's health. In recent years, with the improvement of the living standard and the health consciousness of people, the sterilization and odor removal technology is receiving more and more attention from consumers in refrigerator products.

In the related art, the methods of activated carbon adsorption, ultraviolet lamp irradiation and the like are generally adopted to remove peculiar smell and bacteria in the refrigerator, but the activated carbon is saturated to a certain extent so as to be reversely released, and the activated carbon cannot produce sterilizing and degerming effects; the ultraviolet lamp is used for sterilization in an irradiation mode, but the ultraviolet lamp has the defect of uneven luminous intensity distribution, and ultraviolet rays are easy to leak and have adverse effects on human bodies.

Disclosure of Invention

The embodiment of the application provides a sterilization and odor removal assembly and a refrigerator, which can realize good sterilization and odor removal effects.

The utility model provides a disinfect and remove flavor subassembly sets up in the refrigerator, disinfect and remove flavor subassembly includes:

a bracket;

a first electrode connected to the bracket;

the second electrode is arranged opposite to the first electrode and connected with the bracket, the surfaces of the first electrode and the second electrode are coated with a photocatalytic coating, and in an electrified state, the first electrode discharges to the second electrode to generate plasma and trigger the catalytic reaction of the photocatalytic coating so as to remove bacteria and peculiar smell in the refrigerator.

In some embodiments, the support includes a main body portion and a connection portion, the first electrode is connected with the main body portion, the second electrode is located at a side of the first electrode facing away from the main body portion, one end of the connection portion is connected with the main body portion, and the other end of the connection portion is connected with the second electrode, so that a discharge channel is formed between the first electrode and the second electrode.

In some embodiments, the first electrode is a needle electrode and the second electrode is a plate electrode.

In some embodiments, the second electrode is provided with a plurality of through holes at intervals.

In some embodiments, the first electrode and the second electrode are both needle-shaped electrodes.

In some embodiments, the sterilizing and deodorizing assembly further comprises a direct current high voltage power supply, and the first electrode and the second electrode are respectively connected with the direct current high voltage power supply.

In some embodiments, the sterilization and odor removal component further includes a first carbon brush and a second carbon brush, the first carbon brush and the second carbon brush are respectively connected with the bracket, the first carbon brush and the second carbon brush can generate plasma in an energized state, and the plasma is used for removing bacteria and odor in the refrigerator.

In some embodiments, the bracket includes a first protrusion having a first receiving cavity with an open top and a second protrusion having a second receiving cavity with an open top, the first carbon brush is disposed in the first receiving cavity, and the second carbon brush is disposed in the second receiving cavity.

In some embodiments, the first carbon brush and the second carbon brush are respectively connected to the dc high voltage power source.

The embodiment of the application also provides a refrigerator, which comprises the sterilizing and deodorizing component according to any embodiment

The sterilizing and deodorizing component and the refrigerator provided by the embodiment of the application comprise a bracket, and a first electrode and a second electrode which are connected with the bracket, wherein the second electrode is arranged opposite to the first electrode, photocatalytic coatings are coated on the surfaces of the first electrode and the second electrode, and in an electrified state, the first electrode discharges to the second electrode to generate plasma; the plasma has strong oxidizing property and light-emitting property, on one hand, the plasma can sterilize and decompose odor molecules, and on the other hand, ultraviolet light emitted by the plasma can trigger the catalytic reaction of the photocatalytic coating to further sterilize and remove odor, so that a good sterilizing and odor-removing effect is realized.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings that are required to be used in the description of the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from these drawings without inventive effort for a person skilled in the art.

For a more complete understanding of the present application and the advantages thereof, reference is now made to the following descriptions taken in conjunction with the accompanying drawings, in which like reference numerals represent like parts throughout the following description.

Fig. 1 is a schematic diagram of a first structure of a sterilizing and deodorizing module according to an embodiment of the present application.

Fig. 2 is an enlarged schematic view of the portion a shown in fig. 1.

Fig. 3 is a schematic diagram of a second structure of the sterilizing and deodorizing module according to the embodiment of the present application.

Reference numerals illustrate:

10. a bracket; 11. a main body portion; 12. a connection part; 13. a first projection; 14. a second projection; 20. a first electrode; 30. a second electrode; 31. a through hole; 40. a direct current high voltage power supply; 41. a wire; 50. a first carbon brush; 51. a carbon fiber; 60. a second carbon brush; 100. a sterilizing and deodorizing component; 131. a first accommodation chamber; 141. and a second accommodation chamber.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It will be apparent that the described embodiments are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by a person skilled in the art without any inventive effort, are intended to be within the scope of the present application based on the embodiments herein.

The sterilizing and deodorizing component provided by the embodiment of the application has good sterilizing and deodorizing effects, and can be applied to household appliances such as refrigerators, freezers, air purifiers and the like. For ease of understanding, the embodiments of the present application will be described with reference to the application of the sterilizing and deodorizing module to a refrigerator.

For example, referring to fig. 1, fig. 1 is a schematic structural diagram of a sterilizing and deodorizing component according to an embodiment of the present application. The sterilizing and deodorizing module 100 according to the embodiment of the present application includes a support 10, and a first electrode 20 and a second electrode 30 connected to the support 10. Wherein the first electrode 20 is disposed opposite to the second electrode 30, surfaces of the first electrode 20 and the second electrode 30 are coated with a photocatalytic coating, and in an energized state, the first electrode 20 discharges to the second electrode 30 to generate plasma. The plasma has strong oxidizing property and light-emitting property, on one hand, the plasma can sterilize and decompose odor molecules, and on the other hand, ultraviolet light emitted by the plasma can trigger the catalytic reaction of the photocatalytic coating to further sterilize and remove odor, so that a good sterilizing and odor-removing effect is realized.

Wherein the bracket 10 serves as a mounting base for mounting the first electrode 20 and the second electrode 30, and the sterilizing and deodorizing assembly 100 can be fixed inside the refrigerator using the bracket 10. The first electrode 20 and the second electrode 30 are connected to the support 10, and may be fixed connection structures or movable connection structures. Preferably, the first electrode 20 and the second electrode 30 are movably connected with the bracket 10, so as to facilitate adjustment and disassembly of the first electrode 20 and the second electrode 30.

As shown in fig. 1, the bracket 10 includes a main body 11 and a connecting portion 12, and the main body 11 and the connecting portion 12 may be integrally formed, for example, by injection molding. In other embodiments, the main body 11 and the connecting portion 12 may be separate structures, for example, the main body 11 and the connecting portion 12 may be connected by fasteners such as screws, bolts, or by a snap-fit connection.

Wherein the first electrode 20 is connected to the main body 11, and the second electrode 30 is located at a side of the first electrode 20 facing away from the main body 11. Preferably, the first electrode 20 and the second electrode 30 are disposed in parallel with each other at a spacing to form a discharge path between the first electrode 20 and the second electrode 30. Specifically, the first electrode 20 is disposed on the surface of the main body 11, one end of the connection portion 12 is connected to the main body 11, and the other end of the connection portion 12 is connected to the second electrode 30, that is, the connection portion 12 is located between the main body 11 and the second electrode 30, and the connection portion 12 can support and fix the second electrode 30, so that a certain gap is reserved between the second electrode 30 and the first electrode 20, thereby forming a discharge channel.

In the present embodiment, the surfaces of the first electrode 20 and the second electrode 30 are both coated with a photocatalytic coating. Illustratively, the photocatalytic coating may be a titanium dioxide coating. For example, titanium dioxide powder is dispersed in transparent sol of n-butanol-ethanol titanate, and then the transparent sol is coated on the surfaces of the first electrode 20 and the second electrode 30 by a spin coating method to obtain a titanium dioxide wet gel film, and then the wet gel film is dried by heat treatment to obtain the first electrode 20 and the second electrode 30 coated with the titanium dioxide film.

It should be noted that, in the embodiment of the present application, the photocatalytic coating is disposed on the first electrode 20 and the second electrode 30, that is, the photocatalytic module is integrated with the first electrode 20 and the second electrode 30, so that no additional photocatalytic module is required, and the space layout inside the refrigerator can be saved; and the photocatalytic coating formed on the first electrode 20 and the second electrode 30 can increase the effective contact area of the catalyst and the plasma, improve the catalytic capability thereof, and is beneficial to sterilization and odor degradation.

It will be appreciated that the first electrode 20 and the second electrode 30 may generate corona discharge in a high voltage state to generate plasma by ionizing air. On the one hand, the plasma has very high chemical activity and comprises a plurality of high-activity substances such as anions, positive ions, electrons, excited atoms, free radical molecules and the like, and shock waves and electron beams formed by neutralizing the active substances, the anions and the positive ions can directly destroy cell walls of microorganisms to sterilize, and meanwhile, odor substances can also be directly decomposed into new harmless substances to realize the effects of sterilizing and deodorizing.

On the other hand, the plasma also has a light emitting property, electrons in the plasma collide with other particles during high-speed movement, and energy thereof is released in the form of light, such as visible light, ultraviolet light, and the like. The high energy electrons and ultraviolet light may directly act on the photocatalytic coating applied to the first electrode 20 and the second electrode 30, triggering a catalytic reaction of the photocatalytic coating. For example, electrons on the surface of the catalyst particles (such as titanium dioxide) of the photocatalytic coating are excited under the action of ultraviolet light, and escape from the original orbitals to form free electrons, and positive holes are formed on the surface of the catalyst particles. The free electrons and holes act with oxygen molecules and water molecules adsorbed on the surfaces of the catalyst particles to generate active oxygen and hydroxyl free radicals, and the active oxygen and the hydroxyl free radicals have strong oxidative decomposition capability and can sterilize and decompose odor gas molecules, so that the effects of sterilizing and removing odor are realized. In addition, the external electric field of the plasma can promote the separation of free electrons and holes on the surface of the catalyst particles, reduce the recombination efficiency and further improve the sterilization and odor removal effects.

With continued reference to fig. 1, in the embodiment of the present application, the first electrode 20 is a needle-shaped electrode, the second electrode 30 is a plate-shaped electrode, and the needle tip of the needle-shaped electrode faces the second electrode 30, so that the first electrode 20 and the second electrode 30 form a needle-plate type discharge structure. In the energized state, the first electrode 20 may discharge to the second electrode 30, and an arc generated during the discharge may ionize air to generate plasma. The gas in the refrigerator flows through the sterilizing and purifying component, and the plasma promotes the decomposition and electrolysis of the odor gas molecules so as to eliminate the odor; simultaneously, ultraviolet light emitted by the plasma irradiates the photocatalytic coating to generate electrons and holes, so that the molecular decomposition of the peculiar smell gas is promoted, and the peculiar smell is further eliminated; and positive ions, negative ions and ultraviolet light in the plasma can also play a role in sterilization, so that a good sterilization and odor removal effect is realized.

In some embodiments, the first electrode 20 is a needle electrode and the second electrode 30 is a plate electrode. The discharge needles of the first electrode 20 may be tungsten needles, gold-plated stainless steel needles, or silver needles, and may have a length of 3 to 15 mm, for example, but the embodiment is not limited thereto, and the corresponding discharge needles and the dimensions of the discharge needles may be selected according to actual settings.

The number of the discharge needles of the first electrode 20 is plural, and the plural discharge needles are arranged at intervals. The number of the discharge needles may be 3 to 40, and the specific number of the discharge needles may be determined according to the actual size of the first electrode 20 and the second electrode 30, which is not particularly limited herein. Illustratively, the plurality of discharge needles are arranged in at least one row at equal intervals on the main body 11, and this uniform arrangement can facilitate uniform discharge of the discharge needles toward the second electrode 30, improve uniformity of ion field formation, and make the purifying effect more excellent.

The second electrode 30 is located at a side of the first electrode 20 away from the main body 11, the second electrode 30 is arranged in parallel with the first electrode 20 at intervals, and the tip of the first electrode 20 faces the second electrode 30, so that the first electrode 20 can perform tip discharge to the second electrode 30. The material of the second electrode 30 may be one or more of stainless steel, copper, and aluminum alloy. The thickness of the second electrode 30 may be 0.2 mm to 2 mm. Preferably, the second electrode 30 is a stainless steel plate having a thickness of 1 mm. The material and thickness of the second electrode 30 are not particularly limited, and may be selected according to practical situations.

As shown in fig. 1, the second electrode 30 is provided with a plurality of through holes 31 at intervals. By providing the through holes 31, the ion wind can be made to flow smoothly through the through holes 31 on the second electrode 30 effectively, and the sterilizing and purifying effect of the sterilizing and deodorizing assembly 100 can be improved. Specifically, the through holes 31 may be circular holes, triangular, rectangular, or other irregularly shaped holes. Preferably, the through hole 31 is circular in shape and has a pore diameter of 2 mm.

In other embodiments, both the first electrode 20 and the second electrode 30 are needle-like electrodes. Illustratively, each of the first electrode 20 and the second electrode 30 includes a plurality of discharge needles, and the number of discharge needles of the first electrode 20 and the number of discharge needles of the second electrode 30 may be the same or different. By providing both the first electrode 20 and the second electrode 30 as needle electrodes, the passage of the ion wind is facilitated, and the plasma generated by the first electrode 20 and the second electrode 30 performs sterilization and decomposition of the odor.

Referring to fig. 3, fig. 3 is a schematic diagram of a second structure of the sterilizing and deodorizing device according to the embodiment of the present application. The sterilization and odor removal device provided in the embodiment of the present application further includes a dc high-voltage power supply 40, and the first electrode 20 and the second electrode 30 are respectively connected to the dc high-voltage power supply 40. The first electrode 20 and the second electrode 30 are illustratively connected to a dc high voltage power source 40 via leads 41, respectively. Preferably, the dc high voltage power supply 40 is a dc negative high voltage power supply, the first electrode 20 is connected to a negative high voltage end of the dc negative high voltage power supply, and the second electrode 30 is connected to a positive electrode (ground end) of the dc negative high voltage power supply, so that corona discharge can be generated between the first electrode 20 and the second electrode 30, and plasma is generated to sterilize and decompose odor molecules.

With continued reference to fig. 1 and 2, fig. 2 is an enlarged schematic view of the portion a shown in fig. 1. The sterilization and odor elimination assembly 100 provided in the embodiment of the present application further includes a first carbon brush 50 and a second carbon brush 60. The first carbon brush 50 and the second carbon brush 60 are respectively connected with the bracket 10, and the first carbon brush 50 and the second carbon brush 60 can generate plasma in an energized state, and the plasma is used for removing bacteria and odor in the refrigerator.

Illustratively, the bracket 10 includes a first projection 13 and a second projection 14, the first projection 13 and the second projection 14 being respectively connected to the main body 11, for example, the first projection 13 and the second projection 14 are integrally formed with the main body 11. Wherein the first protruding portion 13, the second protruding portion 14 and the first electrode 20 are located on the same side of the main body 11.

As shown in fig. 1, the first protruding portion 13 has a first accommodation chamber 131 with an open top, the second protruding portion 14 has a second accommodation chamber 141 with an open top, the first carbon brush 50 is disposed in the first accommodation chamber 131, the second carbon brush 60 is disposed in the second accommodation chamber 141, and the first carbon brush 50 and the second carbon brush 60 are connected to the dc high voltage power source 40, respectively.

The dc high-voltage power supply 40 is a dc negative high-voltage power supply, the first carbon brush 50 and the second carbon brush 60 are respectively connected to a negative high-voltage end of the dc negative high-voltage power supply, that is, the first carbon brush 50 and the second carbon brush 60 are connected in parallel to the negative high-voltage end of the dc negative high-voltage power supply, and in the energized state, the first carbon brush 50 and the second carbon brush 60 can discharge to the air to generate plasma, so as to be matched with the first electrode 20 and the second electrode 30 to increase the concentration of the plasma generated by the sterilizing and deodorizing component 100, and to circulate along with the air in the refrigerator to each storage space, thereby achieving a good sterilizing and deodorizing effect.

As shown in fig. 3, each group of carbon brushes may include about 24000 carbon fibers having conductive properties, which are the same as the discharge principle of the discharge needle. When the carbon brush is connected with the DC high voltage power supply 40, the carbon fiber can discharge to the air, namely form corona discharge, and the tip accessory gas is ionized to form plasma during the corona discharge.

It should be noted that the number of carbon brushes included in the sterilizing and deodorizing module 100 is not limited to two groups as shown in the drawings, and may include multiple groups, such as three groups, four groups, and the like. The number of carbon brushes is not specifically limited, and may be set according to actual conditions.

The embodiment of the application also provides a refrigerator, which comprises the sterilizing and deodorizing assembly 100 according to any one of the embodiments, wherein the bracket 10 of the sterilizing and deodorizing assembly 100 can be fixed in the air duct without occupying the internal space of the refrigerator. The refrigerator provided by the embodiment of the application has a good sterilizing and deodorizing effect, and is beneficial to the health of consumers.

The sterilizing and deodorizing component 100 and the refrigerator provided by the embodiment of the application comprise a bracket 10, and a first electrode 20 and a second electrode 30 which are connected with the bracket 10, wherein the second electrode 30 is arranged opposite to the first electrode 20, the surfaces of the first electrode 20 and the second electrode 30 are coated with photocatalytic coatings, and in an electrified state, the first electrode 20 discharges to the second electrode 30 to generate plasma; the plasma has strong oxidizing property and light-emitting property, on one hand, the plasma can sterilize and decompose odor molecules, and on the other hand, ultraviolet light emitted by the plasma can trigger the catalytic reaction of the photocatalytic coating to further sterilize and remove odor, so that a good sterilizing and odor-removing effect is realized.

In the description of the present application, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more features.

The sterilization and odor removal assembly and the refrigerator provided by the embodiment of the application are described in detail, and specific examples are applied to the principle and the implementation of the application, and the description of the above embodiments is only used for helping to understand the method and the core idea of the application; meanwhile, as those skilled in the art will vary in the specific embodiments and application scope according to the ideas of the present application, the contents of the present specification should not be construed as limiting the present application in summary.

Claims (10)

1. A sterilizing and deodorizing assembly provided in a refrigerator, comprising:

a bracket;

a first electrode connected to the bracket;

the second electrode is arranged opposite to the first electrode and connected with the bracket, the surfaces of the first electrode and the second electrode are coated with a photocatalytic coating, and in an electrified state, the first electrode discharges to the second electrode to generate plasma and trigger the catalytic reaction of the photocatalytic coating so as to remove bacteria and peculiar smell in the refrigerator.

2. The sterilizing and deodorizing assembly according to claim 1, wherein the holder comprises a main body portion and a connection portion, the first electrode is connected to the main body portion, the second electrode is located at a side of the first electrode facing away from the main body portion, one end of the connection portion is connected to the main body portion, and the other end of the connection portion is connected to the second electrode, so that a discharge channel is formed between the first electrode and the second electrode.

3. A bactericidal odor removal assembly as set forth in claim 2 wherein said first electrode is a needle electrode and said second electrode is a plate electrode.

4. A bactericidal odor removal assembly as set forth in claim 3 wherein said second electrode is provided with a plurality of through holes spaced apart.

5. A bactericidal odor removal assembly as set forth in claim 2 wherein said first electrode and said second electrode are needle electrodes.

6. A bactericidal odor removal assembly as defined in any of claims 1-5, further comprising a dc high voltage power supply, said first and second electrodes being respectively connected to said dc high voltage power supply.

7. The sterilizing and deodorizing assembly according to claim 6, further comprising a first carbon brush and a second carbon brush, wherein the first carbon brush and the second carbon brush are respectively connected with the bracket, and the first carbon brush and the second carbon brush can generate plasma in an energized state, and the plasma is used for removing bacteria and odor in the refrigerator.

8. The sterilizing and deodorizing assembly according to claim 7, wherein the bracket includes a first protrusion having a first receiving cavity with an open top and a second protrusion having a second receiving cavity with an open top, the first carbon brush being disposed in the first receiving cavity and the second carbon brush being disposed in the second receiving cavity.

9. The sterilization and odor elimination assembly according to claim 7 wherein said first carbon brush and said second carbon brush are respectively connected to said dc high voltage power source.

10. A refrigerator comprising the sterilizing and deodorizing assembly according to any one of claims 1 to 9.

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