Ultra-thin photocatalytic air purification device

Abstract

The utility model relates to ultra -thin formula photocatalytic air purification device, including device shell, the device shell inside defines and purifies the air duct, be equipped with the centrifugal fan wheel for driving air flow and be equipped with photocatalytic air purification module for sterilization and deodorization in the air duct, be equipped with the motor of centrifugal fan wheel drive connection on the device shell, just the centrifugal fan wheel, purify the air duct and photocatalytic air purification module along the same plane direction arrangement setting, this structure can make air purification device realize ultra -thin type, reduce the requirement to the installation space, make air purification device easier installation.

Description

Technical Field

[0001] This utility model relates to the field of air purification devices, specifically an ultra-thin photocatalytic air purification device. Background Technology

[0002] Currently, some household appliances require the suppression or removal of odors within their cavities during use. For example, dishwashers may have residual food waste or grease in their drain pipes or interiors. If these residues are not cleaned regularly over a long period, unpleasant odors will develop. Therefore, some dishwashers are equipped with air purifiers connected to the washing chamber. These purifiers circulate air within the washing chamber to eliminate odors. However, existing air purifiers are bulky and take up a lot of space, requiring a large installation space between the dishwasher's cabinet and lining. To maintain the standard dimensions of the dishwasher, the volume of the washing chamber must be reduced. Therefore, there is a need for a highly efficient, compact, and lightweight air purifier to solve these problems and provide consumers with a suitable option. Utility Model Content

[0003] The purpose of this invention is to solve the aforementioned problems and provide a simple and reasonable ultra-thin photocatalytic air purification device.

[0004] An ultra-thin photocatalytic air purification device includes a device housing, within which a purification duct is defined. The purification duct contains a centrifugal impeller for driving airflow and a photocatalytic air purification module for sterilization and deodorization. The device housing is equipped with a motor that is connected to the centrifugal impeller for transmission. The centrifugal impeller, the purification duct, and the photocatalytic air purification module are arranged along the same plane.

[0005] The objective of this utility model can also be achieved by the following technical measures: As a more specific embodiment, the bottom wall of the device housing is provided with an air inlet and an air outlet, and a purification air duct is formed between the air inlet and the air outlet. The centrifugal impeller is placed on the upper side of the air inlet and is coaxially corresponding to the air inlet. The photocatalytic air purification module is placed on the upper side of the air outlet and is coaxially corresponding to the air outlet.

[0006] As a further embodiment, the photocatalytic air purification module includes a catalytic carrier and ultraviolet lamps, with the ultraviolet lamps spaced apart on the windward side of the catalytic carrier.

[0007] As a further embodiment, the inner wall surface of the device housing between the air inlet and the air outlet forms a drainage slope, which is inclined downwards from the middle position between the two towards the air inlet or the air outlet.

[0008] As a further embodiment, the ultraviolet lamp panel is positioned above the air outlet on the catalytic carrier; the ultraviolet lamp panel is provided with a plurality of light-emitting lamp beads that irradiate ultraviolet light toward the catalytic carrier.

[0009] As a further embodiment, the catalyst support includes a porous support and a photocatalyst layer, wherein the porous support is disposed at the airflow cross-sectional area of ​​one location in the purification air duct, and the photocatalyst layer is disposed on the surface of the porous support.

[0010] As a further embodiment, the porous carrier is a photocatalytic foam ceramic plate, which includes a foam ceramic plate and a titanium dioxide surface layer. The surface of the foam ceramic plate is provided with several breathable pores, and the titanium dioxide surface layer is formed by sintering titanium dioxide on the surface of the foam ceramic plate.

[0011] As a further solution, the air inlet and air outlet are connected by a quick-release structure with a perforated vent cover. The vent cover is provided with a guide hood that extends into the air inlet or air outlet, and the catalyst carrier is softly sealed and fixed inside the guide hood.

[0012] As a further embodiment, the inner wall surface of the device housing is provided with several inverted blocks, which are arranged along the edge of the ultraviolet lamp plate. The ultraviolet lamp plate is connected to the device housing by the fastening of the several inverted blocks. Furthermore, a limiting protrusion extends from the inner wall surface corresponding to the center of the lamp plate, and the bottom end of the limiting protrusion is limited to the top surface of the catalyst carrier.

[0013] As a further embodiment, the air inlet and air outlet are arranged along the same plane, and the air inlet and air outlet are respectively attached to the left and right end walls of the device housing.

[0014] The beneficial effects of this utility model are as follows: This utility model discloses an ultra-thin photocatalytic air purification device. In this air purification device, the centrifugal impeller, the purification duct, and the photocatalytic air purification module are arranged on the same plane and in a straight line in one direction. This structure can reduce the height of the purification duct while ensuring that the air has sufficient cross-sectional area for air circulation, so that the air purification device can be ultra-thin, reducing the requirements for installation space, making the air purification device easier to install, and expanding its application range. Attached Figure Description

[0015] Figure 1 This is a cross-sectional structural diagram of the air purification device in this utility model.

[0016] Figure 2 This is an exploded view of the air purification device in this utility model.

[0017] Figure 3This is a schematic diagram of the installation structure of the photocatalytic air purification module and the ultraviolet module in this utility model.

[0018] Figure 4 This is a schematic cross-sectional view of the photocatalytic air purification module in this utility model.

[0019] Figure 5 This is a schematic diagram of the breathable cover structure in this utility model. Detailed Implementation

[0020] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0021] See Figures 1 to 5 As shown, the ultra-thin photocatalytic air purification device includes a device housing 1, and a purification air duct 101 is defined inside the device housing 1. The purification air duct 101 is provided with a centrifugal impeller 2 for driving air flow and a photocatalytic air purification module 4 for sterilization and deodorization. The device housing 1 is provided with a motor 3 that is driven and connected to the centrifugal impeller 2. The centrifugal impeller 2, the purification air duct 101 and the photocatalytic air purification module 4 are arranged along the same plane direction.

[0022] In this air purification device, the centrifugal impeller 2, the purification duct 101, and the photocatalytic air purification module 4 are arranged on the same plane and in a straight line in one direction. This structure can reduce the height of the purification duct while ensuring that the air has sufficient cross-sectional area for airflow, making the air purification device ultra-thin, reducing the requirements for installation space, making the air purification device easier to install, and expanding its application range.

[0023] The bottom wall of the outer casing 1 of the device is provided with an air inlet 102 and an air outlet 103, and a purification air duct 101 is formed between the air inlet 102 and the air outlet 103. The centrifugal impeller 2 is placed on the upper side of the air inlet 102 and is coaxially corresponding to the air inlet 102. The photocatalytic air purification module 4 is placed on the upper side of the air outlet 103 and is coaxially corresponding to the air outlet 103. This structure arranges the air inlet of the centrifugal impeller 2 and the air inlet 102 coaxially, which can reduce air turbulence and improve the air intake efficiency of the air inlet 102. In addition, the penetration path of the photocatalytic air purification module 4 and the air outlet 103 are arranged in the same straight line direction, which reduces the obstruction of airflow by the photocatalytic air purification module 4 and improves the air outlet efficiency of the coaxial air outlet 103.

[0024] The photocatalytic air purification module 4 includes a catalyst carrier 5 and an ultraviolet lamp plate 41. The ultraviolet lamp plate 41 is spaced apart on the windward side of the catalyst carrier 5. Specifically, the ultraviolet lamp plate 41 is positioned above the catalyst carrier 5 relative to the air outlet 103. The ultraviolet lamp plate 41 is provided with a plurality of light-emitting beads 42 that irradiate ultraviolet light toward the catalyst carrier 5. A space is reserved between the ultraviolet lamp plate 41 and the catalyst carrier 5 to allow air to enter the catalyst carrier 5. The light-emitting beads 42 emit ultraviolet light with a wavelength of 365nm, which provides energy to the catalyst carrier 5.

[0025] When the catalyst carrier 5 and the ultraviolet lamp plate 41 are installed: several inverted blocks 10 are provided on the inner wall surface of the device housing 1. The inverted blocks 10 are arranged along the edge of the ultraviolet lamp plate 41. The ultraviolet lamp plate 41 is connected to the device housing 1 by the snapping of the inverted blocks 10. A limiting protrusion 11 extends from the inner wall surface corresponding to the center of the lamp plate 41. The ultraviolet lamp plate 61 avoids the limiting protrusion 11. The bottom end of the limiting protrusion 11 is limited to the top surface of the catalyst carrier 5, which plays a limiting role, so that the catalyst carrier 5 and the ultraviolet lamp plate 41 can be spaced apart, leaving a gap for air flow and ultraviolet light irradiation.

[0026] The inner wall surface of the device housing 1 between the air inlet 102 and the air outlet 103 forms a drainage slope 104. The drainage slope 104 is inclined downward from the middle position between the two towards the air inlet 102 or the air outlet 103. The drainage slope 104 of this structure helps to discharge water inside the device housing 1 through the air inlet 102 or the air outlet 103, and avoids water remaining inside the device housing 1.

[0027] The catalyst carrier 5 includes a porous carrier 51 and a photocatalyst layer 52. The porous carrier 51 is disposed at one location of the airflow cross-sectional area of ​​the purification air duct 101, and the photocatalyst layer 52 is disposed on the surface of the porous carrier 51.

[0028] Specifically: the porous carrier 51 is a photocatalytic foam ceramic plate, which includes a foam ceramic plate and a titanium dioxide surface layer. The surface of the foam ceramic plate is provided with several air-permeable pores, and the titanium dioxide surface layer is formed by sintering titanium dioxide on the surface of the foam ceramic plate.

[0029] The photocatalytic foam ceramic plate and ultraviolet lamp plate of the aforementioned photocatalytic air purification module 4 are existing products. Their specific performance, process and materials can be found in two patent documents filed by our company: CN214051153U (announcement date August 27, 2021, title: Photocatalytic Unit and Air Purifier) ​​and CN 110871061B (July 26, 2022, title: A Photocatalytic Unit and Its Photocatalytic Method).

[0030] The air inlet 102 and air outlet 103 are connected by a quick-release structure with a perforated vent cover 6. The vent cover 6 is provided with an air guide 61 extending into the air inlet 102 or air outlet 103. The catalyst carrier 5 is softly sealed and fixed inside the air guide 61. The vent cover 6 has a protective function, which can prevent food residue from entering the purification air duct 101. The air guide 61 can keep the inner wall of the purification air duct 101 smooth, which helps to increase the speed of air flow and reduce turbulence caused by air collision.

[0031] In addition, the bottom of the air guide cover 61 is provided with a drain outlet 612. When the water on the drainage slope 104 flows into the edge of the vent cover 6, the water on the vent cover 6 flows through the drain outlet 612 to the middle of the vent cover 6, and finally is discharged from the vent cover 6 through the ventilation holes on the vent cover 6.

[0032] The quick-release structure includes several limiting fasteners 611 circumferentially arranged on the outer wall of the air guide cover 61. The inner side of the air inlet 102 and the air outlet 103 is provided with L-shaped fastening protrusions 105 that are circumferentially engaged with the limiting fasteners 611. The limiting fasteners 611 and the L-shaped fastening protrusions 105 are rotated and engaged to realize the quick installation and removal of the vent cover 6.

[0033] The air inlet 102 and the air outlet 103 are arranged along the same plane, and the air inlet 102 and the air outlet 103 are respectively attached to the left end wall and the right end wall of the device housing 1. This structure keeps the bottom surface of the device housing 1 flat, making it easy for the air purifier to be assembled and connected to the lining of the household appliance. It ensures that the air purifier can fit tightly with the lining after installation, reducing the height of the protrusion. The air inlet 102 and the air outlet 103 are set close to the outermost edge, which can extend the length of the purification air duct 101 on the compact device housing 1.

[0034] The above describes the preferred embodiments of this utility model, illustrating and describing its basic principles, main features, and advantages. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of protection of this utility model as defined by the appended claims and their equivalents.

Claims

1. An ultra-thin photocatalytic air purification device, characterized in that: The device includes a housing (1), which defines a purification air duct (101). The purification air duct (101) is equipped with a centrifugal impeller (2) for driving air flow and a photocatalytic air purification module (4) for sterilization and deodorization. The housing (1) is equipped with a motor (3) that is connected to the centrifugal impeller (2) for transmission. The centrifugal impeller (2), the purification air duct (101) and the photocatalytic air purification module (4) are arranged along the same plane.

2. The ultra-thin photocatalytic air purification device according to claim 1, characterized in that: The bottom wall of the outer casing (1) of the device is provided with an air inlet (102) and an air outlet (103), and a purification air duct (101) is formed between the air inlet (102) and the air outlet (103). The centrifugal impeller (2) is placed on the upper side of the air inlet (102) and is coaxially corresponding to the air inlet (102). The photocatalytic air purification module (4) is placed on the upper side of the air outlet (103) and is coaxially corresponding to the air outlet (103).

3. The ultra-thin photocatalytic air purification device according to claim 2, characterized in that: The photocatalytic air purification module (4) includes a catalytic carrier (5) and an ultraviolet lamp plate (41), with the ultraviolet lamp plate (41) spaced apart on the windward side of the catalytic carrier (5).

4. The ultra-thin photocatalytic air purification device according to claim 2, characterized in that: The inner wall surface of the device housing (1) between the air inlet (102) and the air outlet (103) forms a drainage slope (104), which is inclined downward from the middle position of the two towards the air inlet (102) or the air outlet (103).

5. The ultra-thin photocatalytic air purification device according to claim 3, characterized in that: The ultraviolet lamp plate (41) is positioned on the upper side of the catalyst carrier (5) relative to the air outlet (103); the ultraviolet lamp plate (41) is provided with a plurality of light-emitting lamp beads (42) that irradiate ultraviolet light toward the catalyst carrier (5).

6. The ultra-thin photocatalytic air purification device according to claim 3, characterized in that: The catalyst carrier (5) includes a porous carrier (51) and a photocatalyst layer (52). The porous carrier (51) is disposed at the air flow cross-sectional area of ​​one position in the purification air duct (101), and the photocatalyst layer (52) is disposed on the surface of the porous carrier (51).

7. The ultra-thin photocatalytic air purification device according to claim 6, characterized in that: The porous carrier (51) is a photocatalytic foam ceramic plate, which includes a foam ceramic plate and a titanium dioxide surface layer. The surface of the foam ceramic plate is provided with several air-permeable pores, and the titanium dioxide surface layer is formed by sintering titanium dioxide on the surface of the foam ceramic plate.

8. The ultra-thin photocatalytic air purification device according to claim 3, characterized in that: The air inlet (102) and air outlet (103) are connected by a quick-release structure with a perforated vent cover (6). The vent cover (6) is provided with a guide hood (61) extending into the air inlet (102) or air outlet (103). The catalyst carrier (5) is softly sealed and fixed inside the guide hood (61).

9. The ultra-thin photocatalytic air purification device according to claim 3, characterized in that: The inner wall of the device housing (1) is provided with several inverted blocks (10), which are arranged along the edge of the ultraviolet lamp plate (41). The ultraviolet lamp plate (41) is connected to the device housing (1) by the fastening of the several inverted blocks (10). A limiting protrusion (11) extends from the inner wall corresponding to the center of the lamp plate (41), and the bottom end of the limiting protrusion (11) is limited to the top surface of the catalyst carrier (5).

10. The ultra-thin photocatalytic air purification device according to claim 2, characterized in that: The air inlet (102) and air outlet (103) are arranged along the same plane direction, and the air inlet (102) and air outlet (103) are respectively attached to the left end wall and the right end wall of the device housing (1).

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