Air purification device

Abstract

The utility model relates to an air purification device which comprises a shell and an upper cover, and the shell and the upper cover are enclosed to form a mounting cavity; a photocatalysis module, a fan and an ultraviolet disinfection module are arranged in the mounting cavity; the photocatalysis module comprises an aluminum substrate; filter screen holes are formed in the aluminum substrate; the outer surface of the aluminum substrate and the inner side walls of all the filter screen holes are uniformly coated with nano titanium dioxide catalytic films; the air purification device is ingenious in structural design, the photocatalytic module is fixed to the air outlet in the upper cover through the fan, the resistance generated when airflow passes through the photocatalytic module can be reduced through airflow generated by the fan, and therefore energy consumption is reduced, and the overall efficiency of the air purification device is improved; the photocatalytic net can be formed by combining the aluminum substrate and the nano titanium dioxide catalytic film, the structure is simple, the size is small, the cost is low, the light absorption capacity of nano titanium dioxide is enhanced, the photocatalytic efficiency is improved, and the air purification efficiency is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of air purification, and more specifically, to an air purification device. Background Art

[0002] An air purifier is a device used to improve indoor air quality. It can effectively remove pollutants in the air, such as dust, pollen, bacteria, odors, etc.

[0003] A household photocatalytic air purifier as disclosed in the invention application with patent application number CN202210793477.4 is disclosed on the market; it includes a shell, and the shell is provided with an air inlet and an air outlet mesh, the air inlet is located at the bottom of the shell, and the air outlet mesh is located at the upper part of the shell, and an air duct and an ultraviolet generating device are provided in the shell, and the ultraviolet generating device is an LED ultraviolet light-emitting tube, and the air duct includes an inner air duct and an outer air duct, and the inner air duct and the outer air duct are both made of ceramic, and titanium dioxide is sintered on the surface, the inner air duct is sleeved in the outer air duct, and the LED ultraviolet light-emitting tube is arranged between the outer air duct and the inner air duct; the photocatalytic module in this structure is composed of a ceramic air duct and titanium dioxide, and the air duct is composed of two inner and outer air ducts, which is not only structurally complex but also costly. Utility Model Content

[0004] The technical problem to be solved by the present invention is to provide an air purification device in view of the above-mentioned defects of the prior art.

[0005] The technical solution adopted by the utility model to solve its technical problems is: an air purification device, which includes a shell and an upper cover, the shell and the upper cover enclosed to form an installation cavity; the upper cover is provided with an air outlet mesh; the lower end of the shell is provided with an air inlet; the air outlet mesh and the air inlet are both connected to the installation cavity; in the installation cavity, a photocatalytic module, a fan blowing air toward the air outlet mesh and a disinfection area are sequentially arranged from top to bottom between the air outlet mesh and the air inlet; an ultraviolet disinfection module is fixedly installed in the disinfection area; the fan fixes the photocatalytic module to the air outlet mesh on the upper cover; the photocatalytic module includes an aluminum substrate; the aluminum substrate is provided with honeycomb filter mesh holes; the outer surface of the aluminum substrate and the inner side walls of all the filter mesh holes are evenly coated with a nano-titanium dioxide catalytic film;

[0006] The air purification device described in the utility model, wherein the ultraviolet disinfection module includes at least two circuit boards arranged above and below the fan; a plurality of evenly distributed ultraviolet lamp beads are provided on the circuit boards; the fan is within the irradiation range of the uppermost ultraviolet disinfection module; all the circuit boards are provided with through holes; the through holes of two adjacent circuit boards are staggered with each other;

[0007] The air purification device of the present invention, wherein the fan includes a mounting frame detachably connected to the upper cover; a rotor and fan blades circumferentially arranged along the outer surface of the rotor are provided in a central channel of the mounting frame; all the fan blades are inclined in the same direction; a channel for ultraviolet rays to pass through is left between two adjacent fan blades; a gap for ultraviolet rays to pass through is left between the fan blades and the inner side wall of the mounting frame; and all the filter mesh holes are within the coverage of the central channel of the mounting frame;

[0008] The air purification device described in the utility model, wherein the surface of the fan blade facing the ultraviolet disinfection module is evenly coated with a first reflective layer, and the surface of the fan blade facing the photocatalytic template is evenly coated with a second reflective layer; the first reflective layer is used to reflect the ultraviolet light of the ultraviolet disinfection module to the second reflective layer of the next fan blade; the second reflective layer reflects the received ultraviolet light to the photocatalytic module;

[0009] The air purification device of the present invention, wherein a groove accommodating the photocatalytic module and corresponding to the mounting cavity is provided on a surface of the upper cover on one side of the air outlet;

[0010] The air purification device of the present invention, wherein a plasma decomposition module for ionizing and sterilizing harmful gases and particulate matter in the air in the installation cavity is further provided between the air inlet and the disinfection area;

[0011] The air purification device of the present invention, wherein the installation cavity is further provided with a negative ion generator for generating negative ions to purify the air in the installation cavity;

[0012] In the air purification device of the present invention, a controller is further provided on the housing; the photocatalytic module, the fan, the ultraviolet disinfection module and the negative ion generator are all electrically connected to and controlled by the controller.

[0013] The beneficial effects of the utility model are as follows:

[0014] 1. The air purification device has an ingenious structural design. By placing the photocatalytic module, air fan and disinfection area in sequence, each functional area is clearly defined, and the air entering the purification device undergoes disinfection and purification processes in sequence.

[0015] 2. Fixing the photocatalytic module to the air outlet on the upper cover by using a fan can not only use the airflow generated by the fan to force air through the photocatalytic module, making the resistance of the airflow through the photocatalytic module smaller, thereby reducing energy consumption and improving the overall efficiency of the air purification device, but also the fan helps to quickly disperse the heat generated by the photocatalytic module while blowing air, thereby reducing the temperature of the device and improving the working stability of the device;

[0016] 3. The combination of an aluminum substrate and a nano-titanium dioxide catalytic film can form a photocatalytic network with a simple structure, compact size and low cost. The aluminum substrate can provide a stable foundation for titanium dioxide due to its own properties, extending the service life of the photocatalytic network. The aluminum substrate can also enhance the light absorption capacity of nano-titanium dioxide, especially in the ultraviolet light region, which helps to improve the photocatalytic efficiency and further improve the efficiency of air purification. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the present invention will be further described below with reference to the accompanying drawings and embodiments. The drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work:

[0018] Figure 1 This is a structural diagram of an air purification device according to a preferred embodiment of the present utility model;

[0019] Figure 2 yes Figure 1 A schematic diagram of the internal structure of an air purification device;

[0020] Figure 3 yes Figure 1 A three-dimensional exploded view of an air purification device;

[0021] Figure 4 yes Figure 1 Schematic diagram of the structure of the photocatalytic module 30. DETAILED DESCRIPTION

[0022] The terms "first," "second," "third," and "fourth," etc., in the specification, claims, and accompanying drawings of the present invention are used to distinguish between different items, not to describe a specific order. Furthermore, the terms "including," "having," and any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, product, or apparatus comprising a series of steps or elements is not limited to the listed steps or elements, but may optionally include steps or elements not listed, or may optionally include other steps or elements inherent to the process, method, product, or apparatus.

[0023] References herein to "embodiments" mean that a particular feature, structure, or characteristic described in connection with the embodiments may be included in at least one embodiment of the present invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor does it constitute a separate or alternative embodiment that is mutually exclusive of other embodiments. It is understood, both explicitly and implicitly, by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0024] "Multiple" refers to two or more. "And / or" describes the relationship between associated objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. The character " / " generally indicates that the associated objects are in an "or" relationship.

[0025] Moreover, the terms "up, down, front, back, left, right, upper end, lower end, longitudinal" and the like indicating directions are all based on the posture and position of the device or apparatus described in this solution during normal use.

[0026] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the following will be a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work shall fall within the scope of protection of the present invention.

[0027] An air purification device according to a preferred embodiment of the present invention is as follows Figure 1-4 As shown, the device comprises a shell 10 and an upper cover 20. In one embodiment, the shell 10 can be composed of two half shells; the shell 10 and the upper cover 20 enclose a mounting cavity 01; an air outlet mesh port 21 is provided on the upper cover 20; the air outlet mesh port of the upper cover can not only prevent the user from contacting the internal fan and other electronic components, thereby improving the safety of use, but also can guide the purified air to flow out from the upper end of the purification device; an air inlet 11 is provided at the lower end of the shell 10; the air outlet mesh port 21 and the air inlet 11 are both connected to the mounting cavity 01; in one embodiment, a filter is also provided at the air inlet to prevent other substances and impurities from entering. into the installation cavity; in the installation cavity 01, a photocatalytic module 30, a fan 40 blowing air toward the air outlet 21 and a disinfection area are arranged in sequence from top to bottom between the air outlet mesh 21 and the air inlet 11; an ultraviolet disinfection module 50 is fixedly installed in the disinfection area; the fan 40 fixes the photocatalytic module 30 to the air outlet of the upper cover 20; the photocatalytic module 30 includes an aluminum substrate 31; a honeycomb filter mesh 32 is provided on the aluminum substrate 31; a nano-titanium dioxide catalytic film (not shown) is evenly coated on the outer surface of the aluminum substrate 31 and the inner side walls of all the filter mesh holes 32.

[0028] In this embodiment, the aluminum substrate, due to its inherent corrosion resistance and mechanical strength, provides a stable substrate for the titanium dioxide, extending the service life of the photocatalytic network. The aluminum substrate also has excellent thermal conductivity, which helps disperse heat during the photocatalytic process, preventing local overheating and improving photocatalytic efficiency. The use of an aluminum substrate in this utility model also enhances the light absorption capacity of the nano-titanium dioxide, especially in the ultraviolet region, helping to improve photocatalytic efficiency and further enhance air purification efficiency. The nano-titanium dioxide catalytic film can effectively decompose harmful substances in the air, such as organic matter, bacteria, and viruses, improving air purification effectiveness.

[0029] The air purification device has an ingenious structural design. By arranging the photocatalytic module, air fan and disinfection area in sequence, each functional area is clearly defined, so that the air entering the purification device undergoes the disinfection and purification process in sequence. The photocatalytic module is fixed to the air outlet on the upper cover by a fan, which not only can use the airflow generated by the fan to force the air to pass through the photocatalytic module, but also reduce the resistance of the airflow when passing through the photocatalytic module, thereby reducing energy consumption and improving the overall efficiency of the air purification device. At the same time, the fan helps to quickly disperse the heat generated by the photocatalytic module, reduce the temperature of the equipment, and improve the working stability of the equipment. The air purification device can more effectively combine ultraviolet disinfection and photocatalytic technology, thereby improving the overall air purification performance and providing users with a healthier and fresher air environment.

[0030] Optionally, the ultraviolet disinfection module 50 includes at least two circuit boards 51 arranged up and down below the fan 40; a plurality of evenly distributed ultraviolet lamp beads 52 are provided on the circuit board 51; the plurality of circuit boards arranged up and down increase the irradiation area of ​​the ultraviolet disinfection module, helping to cover more space and improve the air purification effect. The uniform array of the plurality of ultraviolet lamp beads can ensure that the ultraviolet irradiation in the disinfection area is more uniform, thereby improving the disinfection efficiency and more effectively killing bacteria, viruses and other microorganisms in the air. The fan 40 is within the irradiation range of the top ultraviolet disinfection module 50, which can promote air flow and make it easier for microorganisms in the air to be exposed to ultraviolet rays, thereby improving the disinfection effect. Through holes 53 are provided on all circuit boards 51; the through holes 53 of two adjacent circuit boards 51 are staggered with each other, so that the air can be fully purified when passing through the through holes.

[0031] Furthermore, the fan 40 includes a mounting frame 41 detachably connected to the upper cover 20; a rotor 42 and fan blades 43 circumferentially arranged along the outer surface of the rotor 42 are provided in the central channel of the mounting frame 41; all fan blades 43 are inclined in the same direction; a channel for ultraviolet rays to pass through is left between two adjacent fan blades 43; a gap is left between the fan blades 43 and the inner wall of the mounting frame 41 for ultraviolet rays to pass through, and all filter mesh holes 32 are within the coverage range of the central channel of the mounting frame 41; this fan structure can not only ensure that ultraviolet rays can pass through the channels and gaps to react with the photocatalytic module, but also optimize air flow.

[0032] Furthermore, the surface of the fan blade 43 facing the ultraviolet disinfection module 50 is evenly coated with a first reflective layer, and the surface of the fan blade 43 facing the photocatalytic template is evenly coated with a second reflective layer; the first reflective layer is used to reflect the ultraviolet light of the ultraviolet disinfection module 50 to the second reflective layer of the next fan blade 43; the second reflective layer reflects the received ultraviolet light to the photocatalytic module, which can effectively transmit the ultraviolet light to the photocatalytic module, reduce the loss of ultraviolet light, increase the utilization rate of ultraviolet light, and further improve the purification efficiency of the photocatalytic module.

[0033] Furthermore, a groove 22 for accommodating the photocatalytic module 30 and identical to the mounting cavity 01 is provided on one side surface of the upper cover 20 located at the air outlet 21 , resulting in a compact structure.

[0034] Furthermore, a plasma decomposition module 60 is provided between the air inlet 11 and the disinfection zone to ionize and sterilize harmful gases and particulate matter in the air of the installation cavity 01. The reasonable layout of the photocatalytic module, the disinfection zone and the plasma decomposition module ensures the comprehensiveness and efficiency of the air purification process. In this embodiment, the plasma decomposition module 60 is a common prior art in this field. It ionizes harmful gases and particulate matter in the air, turning them into small particles that are easy to capture, thereby achieving the purpose of air purification. The role of plasma in the purifier mainly includes two aspects. On the one hand, it turns harmful gases and particulate matter in the air into small particles that are easy to capture through ionization. On the other hand, it produces a large amount of oxygen ions and negative ions. Oxygen ions and negative ions can also react with bacteria, viruses and other microorganisms in the air, causing the bacteria, viruses and other microorganisms in the air to die or inactivate, thereby achieving the effect of air purification.

[0035] Furthermore, a negative ion generator 70 is provided in the installation cavity 01 for generating negative ions to purify the air in the installation cavity 01. It is worth noting that the negative ion generator 70 is a prior art in this field, and its purification principle and specific structure are not described in detail.

[0036] Furthermore, a controller 80 is provided on the shell 10; the photocatalytic module 30, the fan 40, the ultraviolet disinfection module 50 and the negative ion generator 70 are all electrically connected to and controlled by the controller 80; it is worth noting that the controller 80, as well as the electrical connection relationship and control principle between the controller 80 and each component are conventional technical means in this field and there is no need for improvement, so they will not be elaborated here.

[0037] It should be understood that those skilled in the art can make improvements or changes based on the above description, and all such improvements and changes should fall within the scope of protection of the claims attached to this utility model.

Claims

1. An air purification device, characterized in that: It includes a shell and an upper cover, and the shell and the upper cover are combined to form an installation cavity; the upper cover is provided with an air outlet mesh; the lower end of the shell is provided with an air inlet; the air outlet mesh and the air inlet are both connected to the installation cavity; the installation cavity is located between the air outlet mesh and the air inlet and is provided with a photocatalytic module, a fan blowing air toward the air outlet mesh and a disinfection area from top to bottom; an ultraviolet disinfection module is fixedly installed in the disinfection area; the fan fixes the photocatalytic module to the air outlet mesh on the upper cover; the photocatalytic module includes an aluminum substrate; the aluminum substrate is provided with a honeycomb filter mesh; the outer surface of the aluminum substrate and the inner side walls of all the filter mesh holes are evenly coated with a nano-titanium dioxide catalytic film.

2. The air purification device according to claim 1, characterized in that The ultraviolet disinfection module includes at least two circuit boards arranged above and below the fan; a plurality of evenly distributed ultraviolet lamp beads are provided on the circuit boards; the fan is within the irradiation range of the uppermost ultraviolet disinfection module; all the circuit boards are provided with through holes; and the through holes of two adjacent circuit boards are staggered with each other.

3. The air purification device according to claim 2, characterized in that The fan includes a mounting frame detachably connected to the upper cover; a rotor and fan blades circumferentially arranged along the outer surface of the rotor are provided in the central channel of the mounting frame; all the fan blades are inclined in the same direction; a channel for ultraviolet rays to pass through is left between two adjacent fan blades; a gap for ultraviolet rays to pass through is left between the fan blades and the inner side wall of the mounting frame, and all the filter mesh holes are within the coverage range of the central channel of the mounting frame.

4. The air purification device according to claim 3, characterized in that The surface of the fan blade facing the ultraviolet disinfection module is evenly coated with a first reflective layer, and the surface of the fan blade facing the photocatalytic template is evenly coated with a second reflective layer; the first reflective layer is used to reflect the ultraviolet light of the ultraviolet disinfection module to the second reflective layer of the next fan blade; the second reflective layer reflects the received ultraviolet light to the photocatalytic module.

5. The air purification device according to claim 1, characterized in that A groove is provided on one side of the upper cover located at the air outlet to accommodate the photocatalytic module and is the same as the installation cavity.

6. The air purification device according to any one of claims 1 to 5, characterized in that: A plasma decomposition module for ionizing and sterilizing harmful gases and particulate matter in the air in the installation cavity is also provided between the air inlet and the disinfection area.

7. The air purification device according to claim 6, characterized in that A negative ion generator is also provided in the installation cavity for generating negative ions to purify the air in the installation cavity.

8. The air purification device according to claim 7, characterized in that: The housing is also provided with a controller; the photocatalytic module, the fan, the ultraviolet disinfection module and the negative ion generator are all electrically connected to and controlled by the controller.

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