CN215863946U - Disinfecting and deodorizing device and household appliance - Google Patents

Abstract

The utility model discloses a sterilizing and deodorizing device and a household appliance, wherein the sterilizing and deodorizing device comprises a cylindrical sterilizing and deodorizing device, a cylinder body outer shell, a fan and a catalyst module which are arranged along the axial direction, and the catalyst module comprises an electrode plate assembly and a catalyst block; the top cover component detachably covers the top end of the cylinder body outer shell and is provided with an air outlet grid; and the bottom cover assembly is detachably covered at the bottom end of the shell body of the barrel body and is provided with an air inlet grille. The product can catalytically decompose odor gases such as trimethylamine, methyl mercaptan, ammonia gas, formaldehyde and the like at normal temperature under the action of a high-voltage electric field, has the effects of odor removal, sterilization and disinfection, can be sterilized under the coexistence condition of human and machine, and is friendly and harmless to human bodies; structurally, a cylindrical structure is adopted, the cylindrical structure comprises a top cover assembly, a barrel body outer shell and a bottom cover assembly which are arranged from top to bottom, and functional components are fixedly arranged in a barrel cavity through an internal support.

Description

Disinfecting and deodorizing device and household appliance

Technical Field

The utility model belongs to the field of household appliances, and particularly relates to a household appliance and a sterilizing and deodorizing device used by the household appliance.

Background

The indoor space environment is complex, various foods, daily necessities, electric appliances, furniture and the like exist, various pungent peculiar smells are derived in life, and the life experience of consumers is influenced. The outdoor environment is seriously polluted, and the taste is spread indoors, which also brings trouble to consumers.

Specifically, when an odor removal device using an activated carbon bag or activated carbon as a purification material is used, the activated carbon is easily saturated and inactivated after adsorbing for a certain time, and needs to be replaced frequently. When an ozone generator is used for generating ozone to realize a deodorization effect or a purification device adopting an ultraviolet lamp and a photocatalyst catalytic decomposition technology is used, the purification device generally occupies a large space, can be installed only by a specific device, easily causes diseases of skin or a respiratory system under the exposure of ozone and ultraviolet rays, particularly has great harm to people due to the over-standard ozone, and is limited by the limitation that the application scene of the technology is difficult to expand.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a sterilizing and deodorizing device and a household appliance, and the sterilizing and deodorizing device has the advantages of good performance, low cost, compact structure, small volume and strong impact resistance.

In order to achieve the above object, the present invention provides a sterilizing deodorizer which is cylindrical and comprises:

the catalyst module comprises an electrode plate assembly used for generating a high-voltage electric field and a catalyst block used for catalytically degrading harmful gases under the high-voltage electric field;

the top cover component detachably covers the top end of the cylinder body outer shell and is provided with an air outlet grid; and

and the bottom cover assembly is detachably covered on the bottom end of the shell body of the barrel body and is provided with an air inlet grille.

In some embodiments, the disinfecting odor cleaner further comprises:

the inner support is detachably mounted in a cylinder cavity of the cylinder body outer shell, and the fan and the catalyst module are mounted at two ends of the inner support respectively.

In some embodiments, the disinfecting odor cleaner further comprises a battery, a high voltage power supply, a main board, and a VOC sensor fixedly mounted on the internal support.

In some embodiments, the bottom end of the inner support is connected to the bottom end of the outer shell of the cartridge body by a plurality of fasteners.

In some embodiments, the fan is snap-fit connected to an end of the inner support in which the catalyst module is embedded.

In some embodiments, the bottom cap assembly comprises:

the base support is connected to the bottom end of the inner support in a screwing manner;

the base covers the outer side of the base support and is connected with the bottom end of the barrel shell;

the bottom end cover is arranged in the middle in a conical disc shape and is detachably and fixedly connected with the base support; and

the air inlet grille is annular and is positioned and sleeved on the outer conical surface of the bottom end cover, and the radial periphery of the air inlet grille abuts against the bottom periphery of the base and props the base upwards in an axial direction.

In some embodiments, the bottom cap assembly further comprises:

and the lamp strip is clamped between the base support and the base made of the semitransparent material.

In some embodiments, the cap assembly comprises:

the air outlet grille is annular and is embedded in the top end cylindrical cavity of the fan in an interference fit manner; and

the top cover is arranged in the middle and is detachably and fixedly connected with the air outlet grille.

In some embodiments, the cap comprises:

the lower top cover is provided with a conical peripheral surface, and the air outlet grille is positioned and sleeved on the conical peripheral surface of the lower top cover; and

and the upper top cover is buckled and covered on the lower top cover, and a PCB and a shading plate are arranged in an inner cover cavity between the upper top cover and the lower top cover.

In some embodiments, the catalyst module comprises a first end cap and a second end cap that snap-fit to each other, the electrode sheet assembly and the catalyst block being housed in a snap-cap cavity between the first end cap and the second end cap;

wherein the electrode sheet assembly comprises a positive electrode sheet and a negative electrode sheet which are arranged in parallel at intervals to generate a high-voltage electric field, and the catalyst block comprises a first catalyst block arranged between the positive electrode sheet and the negative electrode sheet and a second catalyst block arranged below the negative electrode sheet.

In some embodiments, the total area of the air inlet of the sterilizing and deodorizing device is 2000-5000 mm²The total area of the air outlet is 2000-4000 mm²And the ratio of the total area of the air inlet to the total area of the air outlet is 0.5-2.

In some embodiments, the catalyst block comprises a honeycomb pore support having a catalyst surface coating.

In addition, the utility model also provides a household appliance which comprises the sterilizing and deodorizing device.

In the odor eliminating and killing device, the catalyst module is adopted, a high-voltage electric field can be generated, and peculiar smell gases such as trimethylamine, methyl mercaptan, ammonia gas, formaldehyde and the like can be catalytically decomposed at normal temperature under the action of the high-voltage electric field through the catalyst block, and a large amount of plasmas generated at high voltage can play a role in efficient sterilization and disinfection, have the effects of odor elimination, sterilization and disinfection, can be sterilized under the coexistence condition of human and machine, and are friendly and harmless to human bodies; structurally, a cylindrical structure is adopted, the cylindrical structure comprises a top cover assembly, a barrel body outer shell and a bottom cover assembly which are arranged from top to bottom, and functional components are fixedly arranged in a barrel cavity through an internal support.

Additional features and advantages of the utility model will be set forth in the detailed description which follows.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model. In the drawings:

FIG. 1 is an exploded view of a sterilization odor eliminator according to an embodiment of the present invention;

FIG. 2 is an exploded view of the installation of functional components such as catalyst modules, fans, high voltage power supplies, batteries, etc. on an internal support;

FIG. 3 is a half sectional view of the assembled sterilizing and deodorizing device;

FIG. 4 is a perspective view of the inner support; and

fig. 5 is an exploded view of a catalyst module.

Description of the reference numerals

1 internal support 2 catalyst block

3 first end cap 4 fastener

5 positive electrode plate 6 negative electrode plate

7 second end cap

10 shell body outer casing 20 air-out grille

30 lower top cover 40 upper top cover

50 base support 60 lamp area

70 base 80 air inlet grille

90 bottom end cap

100 catalyst module 200 high voltage power supply

300 battery 400 fan

500 mainboard 600 VOC sensor

700 PCB 800 light screen

Detailed Description

The following detailed description of specific embodiments of the utility model refers to the accompanying drawings. It should be understood that the specific embodiments described herein are merely illustrative and explanatory of the utility model and are not restrictive thereof.

The following describes the utility model with reference to the accompanying drawings

As shown in fig. 1 to 5, in one embodiment of the present invention, there is disclosed a sterilizing deodorizer comprising:

the cylinder shell 10 is internally provided with a fan 400 and a catalyst module 100 which are arranged along the axial direction, and the catalyst module 100 comprises an electrode plate assembly for generating a high-voltage electric field and a catalyst block 3 for catalytically degrading harmful gases under the high-voltage electric field;

the top cover component detachably covers the top end of the cylinder outer shell 10 and is provided with an air outlet grid 20; and a bottom cover assembly detachably covering the bottom end of the cartridge body outer case 10 and provided with an air inlet grill 80.

In the sterilizing and deodorizing device of the present invention, a cylinder structure is adopted, and the fan 400 and the catalyst module 100 are embedded in the cylinder cavity of the cylinder outer shell 10, so that not only the structure is compact and the product volume is small, but also the cylinder is used as the outer shell to bear the external impact force and the destructiveness. And, adopt the purification ventilation scheme from downside air inlet, upside air-out, the bottom subassembly sets up air-inlet grille 80, and the top cap subassembly sets up air-out grille 20, and ventilation performance is good, and purifying effect is good, moreover the constitution simple structure of killing odor purifier, the cost is lower.

As will be explained in detail below, the sterilization deodorizer of the present invention employs a catalyst module 100 including an electrode sheet assembly for generating a high-voltage electric field and a catalyst block 3 for catalytically degrading harmful gases under the high-voltage electric field. To supply voltage, the odor eliminating and killing device further comprises a high-voltage power supply 200, a battery 300 and a fan 400 for providing airflow power, as shown in fig. 1 and 3.

As shown in fig. 2 and 3, the sterilizing and deodorizing device of the present embodiment may further include an inner frame 1, the inner frame 1 is detachably installed in the chamber of the outer casing 10, and the blower 400 and the catalyst module 100 are respectively installed at both ends of the inner frame 1.

Wherein, through setting up inside support 1, can integrate each functional unit of installation, especially firm reliable location installation fan 400 and catalyst module 100. Specifically, a battery 300 for supplying power to the blower 400 and the catalyst module 100, the high voltage power supply 200, and a main board 500 for electric control and a VOC sensor 600 for air detection, etc. may be integrally embedded in the inner bracket 1 shown in fig. 2. The internal support 1 is configured to have a specific shape according to the functional components to be mounted, and in this embodiment, is configured to have a bottom plate ring edge, so that the bottom end of the internal support 1 and the bottom end of the outer shell 10 of the barrel can be connected by a plurality of fasteners 4 (e.g., a plurality of screws in fig. 2 and 4). Thus, the inner bracket 1 can be firmly connected to the outer shell 10 of the cylinder body, each functional component can better resist external impact, and the product falling performance is better.

In this embodiment, the blower 400 is connected to the end of the inner frame 1 by a snap-fit method, and the catalyst module 100 is embedded in the inner frame 1. However, the present invention is not limited thereto, and the vertical positions of the fan 400 and the catalyst module 100 may be changed, and the fan 400 may draw air or blow air, and is not particularly limited.

Similarly, referring to fig. 2 and 4, the battery 300 and the high voltage power supply 200 are designed in a rectangular shape and are inserted into side portions of the internal bracket 1. The same applies to the main board 500 and the VOC sensor 600, which are inserted into the side portions of the inner bracket 1. Fan 400 detachably buckle is connected in the top of inner support 1, and fan 400's flabellum and the independent dismouting of support can adjust flabellum and support clearance to the corresponding amount of wind of adjusting reduces the noise. The ion catalysis module 100 is embedded in the inner bracket 1, so that the axial installation length can be saved, the structure is more compact, and the product size is smaller.

A bottom cover assembly is detachably mounted to the bottom of the cartridge outer casing 10. In the present embodiment, the bottom cover assembly includes:

a base bracket 50 connected to the bottom end of the inner bracket 1 in a turnbuckle or other fixed connection manner;

a base 70 covering the outside of the base bracket 50 and connected to the bottom end of the outer shell 10;

a bottom end cap 90, which is arranged in the middle in a conical disc shape and is detachably fastened and connected with the base bracket 50;

the air-inlet grille 80 is annular and is positioned and sleeved on the outer conical surface of the bottom end cover 90, and the radial outer periphery of the air-inlet grille 80 abuts against the bottom periphery of the base 70 to prop the base 70 upwards in the axial direction.

Wherein, the base bracket 50, the base 70, the bottom end cover 90 and the air inlet grille 80 are all designed as a revolving body. During assembly, the base bracket 50 may be connected to the inner bracket 1, and then the base 70, the air inlet grille 80 and the bottom end cover 90 are sequentially mounted and clamped to each other, and the bottom end cover 90 and the base bracket 50 are fastened and connected by screws as shown in fig. 1 and 3.

Further, the bottom cover member may further include a light strip 60 for identification and indication, the light strip 60 being sandwiched between the base bracket 50 and the base 70 of translucent material.

Also, a cap assembly is detachably mounted to the top of the outer casing 10 of the cartridge. In this embodiment, the top cover assembly includes:

the air outlet grille 20 is annular and is embedded in the top end cylindrical cavity of the fan 400 in an interference fit manner;

the top cap, set up in the middle and with air-out grid 20 detachably fastening connection.

In this embodiment, in order to prevent the bottom cap assembly from falling down under its own weight, the bottom cap assembly is connected to the inner frame 1 through the base frame 50, and is further fixedly connected to the outer casing 10 by a plurality of screws. The top cap subassembly is installed on the top of stack shell body 10, can obtain the support of stack shell body 10, through the interference fit between the top bobbin cavity of air-out grid 20 and fan 400 to and further the top of fix with screw at stack shell body 10, can realize the equipment fastness. On the basis, the centrally arranged top cover is covered and is tightly connected with the air outlet grille 20 through screws as shown in fig. 1 and fig. 3.

As an example, as shown in fig. 3, the top cover may include:

the lower top cover 30 is provided with a conical peripheral surface, and the air outlet grille 20 is positioned and sleeved on the conical peripheral surface of the lower top cover 30; and

and an upper top cover 40 fastened on the lower top cover 30, wherein a PCB 700 and a light shielding plate 800 are installed in an inner cover cavity between the upper top cover 40 and the lower top cover 30.

That is, the top cover is formed in a hollow structure, and necessary functional components such as the PCB 700 and the light shielding plate 800 may be mounted in the hollow structure. Meanwhile, the top cover is designed into a split cover opening and closing structure of the upper top cover and the lower top cover, so that the connection between the top cover and the air outlet grille 20 is realized by mounting screws, functional parts are mounted, and the appearance is more attractive.

It should be noted that, in the present embodiment, both the air outlet and the air inlet adopt a grid structure, and the annular arc-shaped grid is designed, so that the air inlet mode may be a lower air inlet mode or a side air inlet mode, and the air outlet mode may be a side air outlet mode or an upper air outlet mode. Similarly, the outer shape of the sterilization and odor purification device of the present embodiment is cylindrical, but the present invention is not limited thereto.

In the embodiment, the total area of the air inlet of the disinfecting and deodorizing device is 2000-5000 mm²The total area of the air outlet is 2000-4000 mm²The ratio of the total area of the air inlet to the total area of the air outlet is 0.5-2, and the optimal ratio is close to 1, so that a good air inlet and outlet circulation effect and an air purification and disinfection effect can be obtained. As shown in fig. 1 and fig. 3, a vertical airflow duct is formed in the odor eliminating and killing device of the present embodiment, the fan 400 can drive the airflow to flow through the catalyst module 100, and the odor molecules in the airflow undergo a chemical reaction under the action of the high-voltage electric field and the catalyst to form harmless and odorless gas. And a large amount of plasma can be released through the tip of the electrode plate and can be released to the external space for sterilization and disinfection.

As shown in fig. 5, in the present embodiment, the catalyst module 100 includes a first end cap 3 and a second end cap 7 that are fastened to each other, and the electrode sheet assembly and the catalyst block 2 are accommodated in a cover cavity between the first end cap 3 and the second end cap 7; the electrode plate assembly comprises a positive electrode plate 5 and a negative electrode plate 6 which are arranged in parallel at intervals to generate a high-voltage electric field, and the catalyst block 2 can be directly arranged between the positive electrode plate and the negative electrode plate. However, in the present embodiment, the catalyst block 2 is two catalyst blocks arranged at intervals, that is, the catalyst block 2 includes a first catalyst block arranged between the positive electrode sheet 5 and the negative electrode sheet 6 and a second catalyst block arranged below the negative electrode sheet 6.

At least one of the positive electrode plate 5 and the negative electrode plate 6 adopts a needle-shaped electrode plate, so that an electric field can be effectively formed with the counter electrode, the air duct space is not occupied, and the air duct resistance influence is reduced; the needle-shaped electrode slice can discharge air to generate a large amount of positive and negative ions to kill bacteria in the air. In particular, for realizing compact structure, the first end cap 3, the positive electrode plate 5, the first catalyst block, the negative electrode plate 6, the second catalyst block and the second end cap 7 are arranged in an up-down stacked manner, the first end cap 3 and the second end cap 7 are in frame structures and are covered up and down to limit an end cap cavity, the electrode plate assembly and the catalyst block 2 are fixed in the end cap cavity, the end cap cavity forms a through air passage, and the catalyst module 100 is used for sterilizing and disinfecting air passing through the through air passage. This design of catalyst module 100 may compromise ventilation, odor elimination performance, and low wind resistance requirements.

It should be noted that the catalyst block 3 may be a honeycomb pore carrier having a large contact area, and the honeycomb pore carrier may have a catalyst surface coating. The odor-removing effect can be improved by the effective reaction of the catalyst and the VOC molecules. The catalyst can be a honeycomb catalyst of noble metal and various metal oxides, can catalytically decompose odor gases such as trimethylamine, methyl mercaptan, ammonia gas, formaldehyde and the like under the action of a high-voltage electric field at normal temperature, and can generate a large amount of plasmas to achieve efficient sterilization and disinfection effects. Compared with activated carbon, the catalyst module 100 of the sterilization odor purifier can continuously catalyze and degrade harmful gases, has longer service life, and does not have potential risks such as secondary release and the like; compared with the existing granular, rod-shaped or powder materials, the sterilizing and odor eliminating device can achieve both performance and wind resistance. Compared with a pure ozone or ultraviolet lamp sterilization device, the sterilization and odor removal device can sterilize under the coexistence of human and machine, is friendly and harmless to human bodies, and has the effects of removing odor, sterilizing and disinfecting.

In this embodiment, the catalyst surface coating comprises a first active component, a second active component and a third active component, wherein the first active component is a molecular sieve and/or a modified alumina, the second active component is a transition metal oxide, and the third active component is nano-platinum and/or nano-palladium.

As an example, specifically, the content weight ratio of the carrier, the first active ingredient, the second active ingredient, and the third active ingredient may be 1: 0.05-0.3: 0.01-0.05: 0.0005 to 0.002, preferably 1: 0.1-0.3: 0.01-0.03: 0.001-0.0015. The cell structure of the honeycomb cell carrier is not limited, and it is only required that the number of the cells per unit cross-section is 50-400 mesh, preferably 100-400 mesh, and exemplarily, the cell structure of the carrier may be a square, triangle, hexagon or other irregular structure.

In addition, the utility model also discloses a household appliance which comprises the sterilizing and deodorizing device. Such a household appliance may be a refrigerator, a wine cabinet or the like. The sterilizing and deodorizing device has the advantages of compact and small structure, small occupied space, strong sterilizing and disinfecting continuity, good effect, convenient disassembly and assembly, and firmness and durability.

When the sterilizing and deodorizing device is assembled, referring to fig. 1 and fig. 3, the soft package battery 300, the high-voltage power supply 200, the mainboard 500 and the VOC sensor 600 are sequentially fixed on the inner support 1, the fan 400 is fixed on the inner support 1 through a buckling position, the air outlet grille 20 is arranged on the fan 400, the air outlet grille 20 is in interference fit with the outer frame of the fan 400, and finally four screws are arranged and fixed at the top end of the cylinder body outer shell 10; assembling a base support 50, fixing the base support 50 on the inner support 1 through a turnbuckle, pasting a circle of lamp strip 60 on the base support 50, enabling light of the lamp strip 60 to penetrate to the outside through a base 70, enabling the base 70 to be made of a semi-permeable material, sequentially installing the base 70, an air inlet grille 80 and a bottom end cover 90, and finally, drilling a screw to fix the whole bottom cover assembly; and assembling a top cover assembly, assembling the lower top cover 30, screwing the lower top cover 30 and the air outlet grille 20, and then sequentially assembling the PCB 700, the shading plate 800 and the upper top cover 40 to complete the assembly of the whole prototype.

When the disinfection and purification control device is used in household products, a plurality of disinfection and purification control modes can be realized through the electric control board 500, the display board 600 and the like. Specifically, the catalyst module 100 generates positive and negative ions to perform space sterilization and deodorization, and the product may include a power-on/off machine, a long-acting sterilization mode, a deep sterilization mode, an electric quantity display function, and the like. These functions and parameter settings can be specifically set according to specific user requirements and will not be discussed herein.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the utility model and to simplify the description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and are therefore not to be considered limiting of the utility model.

Furthermore, the terms "first", "second" and "first" 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 defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; may be mechanically coupled, may be electrically coupled or may be in communication with each other; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the utility model. In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction.

Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.

Claims (13)

1. A sterilizing odor cleaner, characterized in that said sterilizing odor cleaner is cylindrical and comprises:

the catalyst module (100) comprises an electrode plate assembly used for generating a high-voltage electric field and a catalyst block (2) used for catalytically degrading harmful gases under the high-voltage electric field;

the top cover component detachably covers the top end of the barrel shell (10) and is provided with an air outlet grille (20); and

and the bottom cover component is detachably covered at the bottom end of the barrel shell (10) and is provided with an air inlet grille (80).

2. A sterilizer as claimed in claim 1, wherein the sterilizer further comprises:

the inner support (1) is detachably mounted in a cylinder cavity of the cylinder body outer shell (10), and the fan (400) and the catalyst module (100) are mounted at two ends of the inner support (1) respectively.

3. A sterilizer as claimed in claim 2, further comprising a battery (300), a high voltage power supply (200), a main board (500) and a VOC sensor (600) fixedly mounted on the internal support (1).

4. A sterilizer as claimed in claim 2, characterised in that the lower end of the inner support (1) is connected to the lower end of the outer shell (10) by a plurality of fasteners (4).

5. A sterilizer as claimed in claim 2, characterised in that the fan (400) is snap-connected to the end of the internal support (1) and the catalyst module (100) is embedded in the internal support (1).

6. The sterilizing odor cleaner of claim 2, wherein said bottom cover assembly comprises:

the base support (50) is connected to the bottom end of the inner support (1) in a screwing manner;

the base (70) covers the outer side of the base support (50) and is connected with the bottom end of the cylinder body outer shell (10);

the bottom end cover (90) is arranged in the middle in a conical disc shape and is detachably and fixedly connected with the base support (50); and

the air inlet grille (80) is annular and is positioned and sleeved on the outer conical surface of the bottom end cover (90), and the radial periphery of the air inlet grille (80) abuts against the bottom periphery of the base (70) and props the base (70) upwards in the axial direction.

7. The sterilizing odor cleaner of claim 6, wherein said bottom cap assembly further comprises:

a light strip (60) interposed between said base support (50) and said base (70) of translucent material.

8. A sterilizer as claimed in claim 2, wherein the cap assembly comprises:

the air outlet grille (20) is annular and is embedded in a top end cylindrical cavity of the fan (400) in an interference fit manner; and

the top cover is arranged in the middle and detachably and fixedly connected with the air outlet grille (20).

9. A sterilizer as claimed in claim 8, wherein the lid comprises:

the lower top cover (30) is provided with a conical peripheral surface, and the air outlet grille (20) is positioned and sleeved on the conical peripheral surface of the lower top cover (30); and

and the upper top cover (40) is buckled and covered on the lower top cover (30), and a PCB (700) and a light screen (800) are arranged in an inner cover cavity between the upper top cover (40) and the lower top cover (30).

10. A sterilizer as claimed in claim 1, characterised in that the catalyst module (100) comprises first and second end caps (3, 7) which snap-fit into one another, the electrode sheet assembly and the catalyst block (2) being received in a snap-fit internal cavity between the first and second end caps (3, 7);

wherein the electrode sheet assembly comprises a positive electrode sheet (5) and a negative electrode sheet (6) which are arranged in parallel at intervals to generate a high-voltage electric field, and the catalyst block (2) comprises a first catalyst block arranged between the positive electrode sheet (5) and the negative electrode sheet (6) and a second catalyst block arranged below the negative electrode sheet (6).

11. The odor eliminating and removing device as claimed in claim 1, wherein the total area of the air inlet of the odor eliminating and removing device is 2000-5000 mm²The total area of the air outlet is 2000-4000 mm²And the ratio of the total area of the air inlet to the total area of the air outlet is 0.5-2.

12. A sterilizer as claimed in any one of claims 1 to 11, characterised in that the catalyst block (2) comprises a honeycomb pore carrier having a catalyst surface coating.

13. A domestic appliance comprising a sterilizer as claimed in any one of claims 1 to 12.

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