WO2024007574A1 - 一种家用光催化空气净化器 - Google Patents

一种家用光催化空气净化器 Download PDF

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Publication number
WO2024007574A1
WO2024007574A1 PCT/CN2023/073952 CN2023073952W WO2024007574A1 WO 2024007574 A1 WO2024007574 A1 WO 2024007574A1 CN 2023073952 W CN2023073952 W CN 2023073952W WO 2024007574 A1 WO2024007574 A1 WO 2024007574A1
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WO
WIPO (PCT)
Prior art keywords
air guide
air
swing
household
photocatalytic
Prior art date
Application number
PCT/CN2023/073952
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English (en)
French (fr)
Inventor
陈翔宇
陈天福
Original Assignee
陈翔宇
陈天福
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Application filed by 陈翔宇, 陈天福 filed Critical 陈翔宇
Publication of WO2024007574A1 publication Critical patent/WO2024007574A1/zh

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/80—Self-contained air purifiers
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F13/00—Details common to, or for air-conditioning, air-humidification, ventilation or use of air currents for screening
    • F24F13/28—Arrangement or mounting of filters
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/108—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering using dry filter elements
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/10—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering
    • F24F8/15—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means
    • F24F8/158—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by separation, e.g. by filtering by chemical means using active carbon
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/24—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using sterilising media

Definitions

  • the present invention relates to the technical field of air purification equipment, and in particular to a household photocatalytic air purifier.
  • COVID-19 is raging around the world, causing more than 500 million infections and millions of deaths.
  • the culprit of COVID-19 is the new coronavirus.
  • the new coronavirus can spread through the air. Therefore, the market is in urgent need of air purifiers that can kill viruses and bacteria in the air. device.
  • Photocatalytic air purifiers emerged as the times require. Photocatalysis is a nano-photocatalyst that becomes a strong oxidant under the irradiation of ultraviolet rays, which can instantly decompose and kill viruses, bacteria, formaldehyde, etc. in the air that come into contact with it. Although photocatalysis has the effect of killing viruses, it has been discovered decades ago, but there is no perfect household photocatalytic air purifier on the market. The reasons are:
  • Photocatalyst material fixation problem How to firmly fix the photocatalyst material nano titanium dioxide powder on the surface of the object, and the fixed titanium dioxide can also be in direct contact with the air is a difficult problem.
  • the common fixing method is to use glue to stick titanium dioxide powder to the surface of the object.
  • glue because the titanium dioxide powder is extremely fine, what can be firmly adhered is wrapped in glue and cannot come into contact with the air, so it cannot function as a photocatalyst.
  • the titanium dioxide powder that is not wrapped in glue will not stick well and is easily blown away by the flowing air. When the unglued titanium dioxide powder on the surface is blown away, the photocatalytic effect will be reduced or ineffective.
  • the problem of the life of the ultraviolet light source needs to be solved.
  • the photocatalyst titanium dioxide must be activated under ultraviolet irradiation to have the effect of killing viruses and bacteria.
  • the current ultraviolet light source uses quartz glass ultraviolet lamp tubes, which have an effective service life of less than 300 hours and require frequent replacement of the ultraviolet lamp. This results in high cost and trouble, which is unacceptable to the market and cannot be promoted and applied on a large scale.
  • the problem of light blocking needs to be solved.
  • the photocatalyst titanium dioxide must be activated under ultraviolet irradiation. However, the ultraviolet light is direct and the front blocks the back. As a result, only part of the photocatalyst device is exposed to ultraviolet rays and the other part is blocked.
  • the proportion of activated photocatalyst titanium dioxide is not high, and the light-blocked part is not activated and cannot play a photocatalytic role.
  • the purpose of the present invention is to provide a household photocatalytic air purifier to solve the problems of air purifiers in the prior art that are not perfect on the market due to difficulty in solving the problems of photocatalyst fixation, ultraviolet light source life and light blocking.
  • Technical issues of household photocatalytic air purifiers are not perfect on the market due to difficulty in solving the problems of photocatalyst fixation, ultraviolet light source life and light blocking.
  • the present invention provides a household photocatalytic air purifier, which includes a casing.
  • the casing is provided with an air inlet and an air outlet.
  • the air inlet is located at the bottom of the casing, and the air outlet is located at the bottom of the casing.
  • the upper part of the casing is provided with an air guide and an ultraviolet generating device inside the casing.
  • the ultraviolet generating device is an LED ultraviolet light emitting tube.
  • the air guide includes an inner air guide and an outer air guide.
  • the inner air guide is The air duct and the outer air duct are made of ceramics, 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 installed in the outer air duct. between the tube and the inner air guide tube.
  • the outer air guide duct and the inner air guide duct are both configured as a frustum, the top of the outer air guide duct is provided with an opening, and the inner air guide duct is placed upside down inside the outer air guide duct. .
  • the titanium dioxide is sintered on the surface of the inner wall of the outer air guide duct and the surface of the outer wall of the inner air guide duct.
  • the surface of the inner wall of the outer air guide duct and the surface of the outer wall of the inner air guide duct are both provided with corrugated structures.
  • an activated carbon filter is set on the outside of the outer air guide tube, and an air return plate is installed on the top of the activated carbon filter.
  • the housing is provided with a luminous tube mounting plate, and the LED ultraviolet luminous tube is installed on the
  • the luminous tube mounting plate is provided with an air guide hole, and an axial flow fan is provided below the luminous tube mounting plate. The axial flow fan is used to blow air into the air through the air guide hole. In the gap between the inner air guide duct and the outer air guide duct.
  • a reflective plate is provided below the axial flow fan.
  • a foam ceramic cylinder is provided in the gap, and the foam ceramic cylinder is sleeved at the bottom or middle of the inner air guide tube.
  • the foam ceramic cylinder has a porous structure, and the LED ultraviolet light-emitting tube Placed outside and inside the foam ceramic cylinder.
  • a swing mechanism is provided below the housing, and an initial filter screen is provided between the swing mechanism and the housing.
  • the swing mechanism is drivingly connected to the housing and is used to drive the housing to swing left and right.
  • the swing mechanism includes a swing motor, a crank, a connecting rod, a swing bar, a swing shaft and a swing plate.
  • the swing motor is fixedly connected to the crank, and the crank is hingedly connected to the connecting rod.
  • the connecting rod is hingedly connected to the swing bar, the swing bar is fixedly connected to the swing shaft, and the swing shaft is fixedly connected to the swing plate.
  • the ultraviolet generating device uses LED ultraviolet light-emitting tubes, which replace quartz glass ultraviolet light tubes.
  • LED ultraviolet light-emitting tubes have the advantages of long life, high reliability, and simple circuits.
  • As a light source that emits ultraviolet rays it irradiates nano-titanium dioxide, which greatly The service life of the ultraviolet light source is extended.
  • LED ultraviolet light-emitting tubes can have various frequencies, various powers and various forms.
  • the outer air guide duct and the inner air guide duct of the present invention are both made of ceramics, and titanium dioxide is sintered on the surfaces of the outer air guide duct and the inner air guide duct, thereby solving the problem of fixing the photocatalyst titanium dioxide.
  • the invention adopts a special set-up structure composed of an outer air guide duct and an inner air guide duct, so that ultraviolet light cannot leak out and air can flow through. Titanium dioxide is sintered on the surface of the outer air guide and the inner air guide, which is white. The ultraviolet light is reflected back and forth in the gap formed by the outer air guide and the inner air guide, forming diffused ultraviolet light. There is no direct light. The light-blocking effect can comprehensively illuminate all surfaces of the object from all angles.
  • a foam ceramic cylinder is placed in the gap formed by the outer air guide duct and the inner air guide duct.
  • titanium dioxide is sintered. Under diffuse ultraviolet irradiation, the titanium dioxide on the porous surface of the foam ceramic is activated, and air passes back and forth in the pores, increasing the number of contacts between the air and the activated titanium dioxide and improving the photocatalytic efficiency.
  • Figure 1 is a schematic structural diagram of a household photocatalytic air purifier according to an embodiment of the present invention
  • FIG 2 is a schematic structural diagram of the swing mechanism of the household photocatalytic air purifier in Figure 1;
  • Figure 3 is a schematic three-dimensional structural diagram of the inner air guide duct of the household photocatalytic air purifier in Figure 1;
  • Figure 4 is a side view of the inner air guide tube in Figure 3;
  • Figure 5 is a top view of the inner air guide tube in Figure 3;
  • Figure 6 is a schematic three-dimensional structural diagram of the outer air guide of the household photocatalytic air purifier in Figure 1;
  • Figure 7 is a side view of the outer air guide tube in Figure 6;
  • FIG. 8 is a top view of the outer air guide tube in FIG. 6 .
  • Inner and outer air guides 311. Opening; 312. Corrugated structure; 32. Inner air guide; 321. Corrugated structure; 33. Gap; 34. Foam ceramic cylinder;
  • Luminous tube mounting plate 61. Air guide hole;
  • Swing mechanism 91. Swing wind motor; 92. Crank; 93. Connecting rod; 94. Swing bar; 95. Swing plate; 96. Swing shaft.
  • plural means two or more;
  • the terms “upper”, “lower”, “left”, “right”, “inner” “, “outside”, “front end”, “rear end”, “head”, “tail”, etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and The simplified description is not intended to indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore should not be construed as a limitation of the present invention.
  • the terms “first,” “second,” “third,” etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a removable connection.
  • Detachable connection, or integral connection it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • connection should be understood in a broad sense.
  • it can be a fixed connection or a removable connection.
  • Detachable connection, or integral connection it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium.
  • FIG. 1 it is a schematic structural diagram of the household photocatalytic air purifier of the present invention, including an upper cover 2 and a shell 1.
  • the upper cover 2 is installed on the top of the shell 1.
  • the shell 1 is provided with an air inlet 11 and an air outlet 12.
  • the air inlet 11 is located at the bottom of the housing 1
  • the air outlet 12 is located at the upper part of the housing 1.
  • the top surface of the upper cover 2 has a temperature display screen 21 to display the temperature; the top surface of the upper cover 2 also has a wind speed control button 22, and the wind speed is controlled by the wind speed control button 22; the top surface of the casing 1 There is also a wind speed control button 23 through which the wind speed is controlled. There is also a wind speed indicator light 24 between the wind speed control button 22 and the wind speed control button 23 to indicate the wind speed.
  • the housing 1 is provided with an air guide and an ultraviolet generating device.
  • the air guide includes an inner air guide 32 and an outer air guide 31. Both the inner air guide 32 and the outer air guide 31 are made of ceramics.
  • the inner air guide 32 is placed inside the outer air guide 31, and titanium dioxide is sintered on the opposite surfaces of the inner air guide 32 and the outer air guide 31.
  • the ultraviolet generating device is an LED ultraviolet light-emitting tube 4, and the LED ultraviolet light-emitting tube 4 is installed in the outer air guide. Between the air duct 31 and the inner air guide 32.
  • the ultraviolet light emitted by the LED ultraviolet light-emitting tube 4 irradiates the nano titanium dioxide photocatalyst on the surface of the outer air guide 31 and the inner air guide 32, making it a strong photocatalyst.
  • the air flows through the outer air guide 31 and the inner air guide 32
  • the surface of the barrel 32 comes into contact with a strong photocatalyst, it can decompose viruses, bacteria, formaldehyde, etc. in the air.
  • LED ultraviolet light-emitting tubes instead of quartz glass ultraviolet lamps as the light source for emitting ultraviolet rays to irradiate nano-titanium dioxide, which greatly extends the service life of the ultraviolet light source.
  • LED ultraviolet light-emitting tubes can have various frequencies, various powers, and various forms.
  • the shape of the outer air guide 31 is smaller at the top and larger at the bottom. There is an opening 311 at the top of the outer air guide 31 to allow air to flow out.
  • the inner air guide 32 is larger at the top and smaller at the bottom and is installed in the center of the outer air guide 31. There is a gap 33 between the outer air guide 31 and the inner air guide 32, allowing air to flow through the gap 33 and then flow out from the top opening 311 of the outer air guide 31.
  • the ultraviolet light diffusion gap 33 is formed by the outer air guide 31 and the inner air guide 32, so that the ultraviolet light changes from direct radiation to diffusion, removes the light blocking effect, and increases the area irradiated by the photocatalyst.
  • the upper and lower parts of the outer air guide 31 and the inner air guide 32 are preferably of a frustum structure, that is, the outer air guide 31 is placed forward and the inner air guide 32 is placed upside down. Inside the air guide 31.
  • the diameter of the opening 311 at the top of the outer air guide 31 is small and the diameter of the upper surface of the inner air guide 32 is large, the direct ultraviolet light is blocked and cannot leak out of the gap 33 between the outer air guide 31 and the inner air guide 32 .
  • the inner surface of the outer air guide 31 and the outer surface of the inner air guide 32 are sintered with titanium dioxide.
  • the titanium dioxide is white.
  • the ultraviolet light is reflected back and forth in the gap 33 between the outer air guide 31 and the inner air guide 32, and finally forms a diffused layer of ultraviolet light.
  • the diffuse light of ultraviolet rays does not have the light-blocking effect of direct light, so that the light in the gap 33 All surfaces can be irradiated by ultraviolet rays, which increases the irradiation area of ultraviolet light and the area of activated titanium dioxide.
  • the surface of the inner wall of the outer air guide 31 and the surface of the outer wall of the inner air guide 32 are both corrugated structures 321, 312, as shown in Figure 3-5, which is a schematic structural diagram of the inner air guide 32, as shown in Figure 6-8 is a schematic structural diagram of the outer air guide 31.
  • the outer surface of the inner air guide 32 has a corrugated structure 321, and the inner surface of the outer air guide 31 has a corrugated structure 312.
  • the corrugated structures 321 and 312 can increase the adhesion area of the nano photocatalyst.
  • the present invention does not limit the specific shape and size of the corrugated structures 321, 312. As long as the area of the inner surface of the outer air guide 31 and the area of the outer surface of the inner air guide 32 can be increased, the invention is protected. within the range.
  • the ultraviolet light diffuses the gap 33 and the corrugated structures 321, 312 on the surfaces of the outer air guide 31 and the inner air guide 32.
  • the air tumbles on the surface of the gap 33 and flows upward, and comes into contact with the activated titanium dioxide photocatalyst on the surface of the gap 33. Viruses, bacteria and organic matter are instantly broken down into carbon dioxide and water. Achieve the effect of purifying the air.
  • an activated carbon filter 5 is set outside the outer air duct 31, as shown in Figure 1.
  • the function of the activated carbon filter 5 is to filter dust in the air.
  • the material of the activated carbon filter 5 can be the activated carbon filter 5, or It can be a filter made of other materials.
  • the filter can have various materials, structures, shapes and densities. As long as it can achieve the purpose of filtering dust, it is within the scope of the present invention.
  • a return air plate 51 is installed on the top of the activated carbon filter 5 , and the return air plate 51 is fixed on the upper part of the activated carbon filter 5 .
  • the return air plate 51 turns the sterilized and disinfected air downward. After filtering out dust in the air through the activated carbon filter 5, it reaches the upper part of the inner cavity of the housing 1, and then is discharged from the upper air outlet 12. The air outlet 12 then The outer shell 1 swings to send clean air to the breathing space of the person and throughout the room.
  • a light-emitting tube installation plate 6 is provided in the housing 1.
  • the LED ultraviolet light-emitting tube 4 is installed on the light-emitting tube installation plate 6.
  • the light-emitting tube installation plate 6 is provided with a guide.
  • An axial flow fan 71 is provided below the air hole 61 and the luminous tube mounting plate 6 .
  • the present invention blows upward through the axial flow fan 71, so that the air to be purified flows through the outer air guide 31 and There is a gap 33 between the inner air guide tubes 32.
  • a reflective plate 72 is provided below the axial flow fan 71, and a nano photocatalyst is provided on the reflective plate 72.
  • the nano photocatalyst not only reflects the ultraviolet rays leaked from above, but also has a certain effect of cleaning the air.
  • a foam ceramic cylinder 34 is provided in the gap 33.
  • the foam ceramic cylinder 34 is set at the bottom or middle of the inner air guide 32, and the LED ultraviolet light-emitting diode 4 is placed outside and outside the foam ceramic cylinder 34. internal.
  • the foam ceramic cylinder 34 has a porous structure with titanium dioxide sintered on its surface. Under the irradiation of diffuse ultraviolet light, the titanium dioxide on the surface of the porous ceramic foam is activated, and air can flow back and forth between the pores of the foam ceramic, increasing the The number of times the air comes into contact with activated titanium dioxide enhances the air purification effect.
  • a swing mechanism 9 is provided below the housing 1, and an initial filter 73 is provided between the swing mechanism 9 and the housing 1.
  • the initial filter 73 serves the purpose of preliminary air filtering, and the swing mechanism 9 is drivingly connected to the housing 1. Swing the drive housing 1 left and right.
  • the swing mechanism 9 of the present invention can drive the housing 1 with the air outlet 12 to swing back and forth at a certain angle.
  • the height of the human breathing space is 1m-1.5m above the ground.
  • the swing mechanism can blow the purified air directly into the human breathing space. Improved utilization of purified air.
  • Other brands of air purifiers on the market do not have air swing devices, and the purified air is blown upward. The purified air cannot directly reach the people's breathing space, and the utilization rate of the purified air is low.
  • the swing motor 91 is fixedly connected to the crank 92, the crank 92 is hingedly connected to the connecting rod 93, the connecting rod 93 is hingedly connected to the swing bar 94, and the swinging bar 94 is fixedly connected to the swing shaft 96.
  • the swing shaft 96 is fixedly connected to the swing plate 95.
  • the swing plate 95 is equipped with various parts such as the shell 1, causing the shell 1 to swing back and forth at a certain angle with the swing axis 96 as the center.
  • the shell 1 has an air outlet 12, and the purified air is directly blown from the air outlet 12 to People's breathing space improves the utilization rate of purified air.
  • the crank connecting rod assembly includes a swing motor 91, a crank 92, a connecting rod 93 and a swing rod 94. Since the crank The connection relationship and specific structure between the crank 92 and the connecting rod 93 are relatively common in the prior art. The specific action process of the crank 92 connecting rod 93 mechanism will not be described in detail in the present invention.
  • control circuit board 13 inside the casing 1, a switching power supply 14 inside the base 8, a remote control circuit on the control circuit board 13, and a mobile phone APP 15 for remote control, which can remotely control the switch of the swing air purifier.
  • the swing motor 91 starts and drives the crank 92 to rotate.
  • the crank 92 drives the connecting rod 93 to move.
  • the connecting rod 93 drives the swing bar 94 to swing.
  • the swing bar 94 drives the swing shaft 96 to swing.
  • the swing shaft 96 drives the swing plate 95 to swing.
  • the plate 95 is equipped with parts such as the shell 1, and the shell 1 has an air outlet 12. The wind blows out from the air outlet 12 and blows the purified air to people's breathing space.
  • There is an air inlet hole on the swing plate 95 that is, the air enters the housing 1 through the air inlet hole;
  • the axial flow fan 71 blows the air from bottom to top.
  • the air passes through the gap formed by the outer air guide 31 and the inner air guide 32, and finally flows out from the top opening 311 of the outer air guide 31.
  • the air interacts with the outside.
  • the nano photocatalysts on the surfaces of the air guide 31 and the inner air guide 32 are in contact with each other.
  • the photocatalysts on the outer air guide 31 and the inner air guide 32 are irradiated by the ultraviolet rays emitted by the LED ultraviolet light emitting tube 4, which activates the photocatalyst and generates powerful instantaneous decomposition ability. , instantly decompose viruses, bacteria and harmful gases in the air.

Abstract

本发明提供了一种家用光催化空气净化器，涉及空气净化设备技术领域，该空气净化器包括外壳，进风口位于外壳的底部，出风口位于外壳的上部，外壳内设有导风筒和紫外线发生装置，紫外线发生装置为LED紫外线发光管，导风筒包括内导风筒和外导风筒，内导风筒和外导风筒均由陶瓷制成，且表面烧结二氧化钛，内导风筒套设于外导风筒内，LED紫外线发光管设于外导风筒和内导风筒之间。本发明的LED紫外线发光管具有寿命长、可靠性高以及电路简单等优点；本发明的外导风筒和内导风筒均由陶瓷制成，解决了光触媒二氧化钛的固定问题；本发明采用外导风筒和内导风筒组成的特殊套设结构，使得空气能从中流过，而紫外线光不能漏出。

Description

一种家用光催化空气净化器 技术领域
本发明涉及空气净化设备技术领域，尤其是涉及一种家用光催化空气净化器。
背景技术
新冠肺炎在全球的肆虐，导致5亿多人感染，几百万人死亡，新冠肺炎的罪魁祸首是新冠病毒，新冠病毒能通过空气传播，故市场急需能杀灭空气中病毒和细菌的空气净化器。
然而，市场上现有的空气净化器几乎都是过滤网式空气净化器，过滤网式空气净化器用于过滤空气中灰尘，由于病毒的直径只有PM2.5灰尘的1/25，现有的过滤网式空气净化器对病毒无效。
光催化空气净化器应运而生，光催化就是纳米光触媒在紫外线的照射下，成为强氧化剂，能够瞬间分解和杀死与之接触的，空气中的病毒，细菌，甲醛等。虽然光催化具有杀死病毒的作用，在几十年前就已经发现，但市场上还没有出现完善的家用光催化空气净化器，其原因是：
(1)光触媒材料固定问题，如何将光触媒材料纳米二氧化钛粉，牢固地固定在物体表面，而且，固定后的二氧化钛还能够与空气直接接触，是一个难题。普通的固定方法是，用胶水将二氧化钛粉粘在物体的表面，但由于二氧化钛粉极细，能粘牢的就是被胶水包裹的，无法与空气接触，起不到光触媒的作用。而没有被胶水包裹的二氧化钛粉就粘不牢，容易被流动的空气吹走，当表面的没粘牢的二氧化钛粉被吹走后，光催化效应就下降或无效。
(2)需要解决紫外线光源的寿命的难题，光触媒二氧化钛，必须在紫外线照射下，才能被激活，才有杀死病毒和细菌的功效。目前的紫外线光源，采用石英玻璃紫外线灯管，有效使用寿命不到300个小时，需频繁地更换紫外线灯， 导致成本高，麻烦多，市场不能接受，无法大规模推广和应用。
(3)需要解决挡光问题，光触媒二氧化钛，必须在紫外线照射下，才能被激活，然而，紫外线光是直射的，前面挡住了后面，导致光触媒器件只有一部分被紫外线照射，另一部分被遮挡。被激活的光触媒二氧化钛比例不高，被挡光部分没有激活，不能起到光催化的作用。要解决挡光问题，提高被照射的光触媒二氧化钛比例，提高光催化的效率。
发明内容
有鉴于此，本发明的目的在于提供一种家用光催化空气净化器，以解决现有技术中的空气净化器由于难以解决光触媒固定、紫外线光源的寿命和挡光问题，导致市面上没有出现完善的家用光催化空气净化器的技术问题。
为了实现上述目的，本发明提供了一种家用光催化空气净化器，包括外壳，所述外壳上设有进风口和出风口，所述进风口位于所述外壳的底部，所述出风口位于所述外壳的上部，所述外壳内设有导风筒和紫外线发生装置，所述紫外线发生装置为LED紫外线发光管，所述导风筒包括内导风筒和外导风筒，所述内导风筒和所述外导风筒均由陶瓷制成，且表面烧结二氧化钛，所述内导风筒套设于所述外导风筒内，所述LED紫外线发光管设于所述外导风筒和所述内导风筒之间。
优选地，所述外导风筒和所述内导风筒均设为锥台结构，所述外导风筒的顶部设有开口，所述内导风筒倒置于所述外导风筒内。
优选地，所述二氧化钛烧结于所述外导风筒内壁的表面和所述内导风筒外壁的表面。
优选地，所述外导风筒内壁的表面和所述内导风筒外壁的表面均设为波纹结构。
优选地，所述外导风筒的外部套设活性炭过滤网，所述活性炭过滤网的顶端安装回风板。
优选地，所述外壳内设有发光管安装板，所述LED紫外线发光管安装于所 述发光管安装板上，所述发光管安装板上设有导风孔，所述发光管安装板的下方设有轴流风扇，所述轴流风扇用于将空气通过导风孔吹入所述内导风筒和所述外导风筒之间的间隙内。
优选地，所述轴流风扇的下方设有反光板。
优选地，所述间隙内设有泡沫陶瓷圆筒，所述泡沫陶瓷圆筒套设于所述内导风筒的底部或中部，所述泡沫陶瓷圆筒为多孔结构，所述LED紫外线发光管置于所述泡沫陶瓷圆筒的外部和内部。
优选地，所述外壳的下方设有摆动机构，所述摆动机构与所述外壳之间设有初始滤网，所述摆动机构与所述外壳驱动连接，用于驱动所述外壳左右摆动。
优选地，所述摆动机构包括摆风电机、曲柄、连杆、摆杆、摆动轴和摆动板，所述摆风电机与所述曲柄固定连接，所述曲柄与所述连杆铰链连接，所述连杆与所述摆杆铰链连接，所述摆杆与所述摆动轴固定连接，所述摆动轴与所述摆动板固定连接，当所述摆风电机带动所述曲柄转动时，在所述曲柄和所述连杆的作用下，所述摆杆以一定的角度摆动。
本发明提供的家用光催化空气净化器，具有以下技术效果：
紫外线发生装置采用LED紫外线发光管，用LED紫外线发光管代替石英玻璃紫外线灯管，LED紫外线发光管具有寿命长、可靠性高以及电路简单等优点，作为发射紫外线的光源，照射纳米二氧化钛，极大地延长了紫外线光源的使用寿命，同时LED紫外线发光管可以有各种频率、各种功率和各种形式。
本发明的外导风筒和内导风筒均由陶瓷制成，并且二氧化钛烧结在外导风筒和内导风筒的表面，解决了光触媒二氧化钛的固定问题。
本发明采用外导风筒和内导风筒组成的特殊套设结构，使紫外线光不能漏出，而空气可以流过。外导风筒和内导风筒表面烧结有二氧化钛，是白色的，紫外线光在外导风筒和内导风筒形成的间隙内来回反射，形成漫射，漫射的紫外线光，没有了直射光的挡光效应，能从各个角度，全面地照射物体的所有的表面。
本发明的在外导风筒和内导风筒形成的间隙内，放置泡沫陶瓷圆筒，其多 孔的表面，烧结了二氧化钛。在漫射的紫外线照射下，泡沫陶瓷多孔表面的二氧化钛被激活，空气在孔中来回穿过，增加了空气与激活了的二氧化钛的接触次数，提高了光催化的效率。
附图说明
为了更清楚地说明本发明实施例或现有技术中的技术方案，下面将对实施例或现有技术描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是本发明一实施例家用光催化空气净化器的结构示意图；
图2是图1中家用光催化空气净化器的摆动机构的结构示意图；
图3是图1中家用光催化空气净化器的内导风筒的立体结构示意图；
图4是图3中内导风筒的侧视图；
图5是图3中内导风筒的俯视图；
图6是图1中家用光催化空气净化器的外导风筒的立体结构示意图；
图7是图6中外导风筒的侧视图；
图8是图6中外导风筒的俯视图。
其中，图1-图8：
1、外壳；11、进风口；12、出风口；13、控制电路板；14、开关电源；15、手机APP；
2、上盖；21、温度显示屏；22、风速控制按键；23、摆风控制按钮；24、风速指示灯；
31、内，外导风筒；311、开口；312、波纹结构；32、内导风筒；321、波纹结构；33、间隙；34、泡沫陶瓷圆筒；
4、LED紫外线发光管；
5、活性炭过滤网；51、回风板；
6、发光管安装板；61、导风孔；
71、轴流风扇；72、反光板；73、初始滤网；
8、底座；
9、摆动机构；91、摆风电机；92、曲柄；93、连杆；94、摆杆；95、摆动板；96、摆动轴。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚，下面将对本发明的技术方案进行详细的描述。显然，所描述的实施例仅仅是本发明一部分实施例，而不是全部的实施例。基于本发明中的实施例，本领域普通技术人员在没有做出创造性劳动的前提下所得到的所有其它实施方式，都属于本发明所保护的范围。
在本发明的描述中，需要说明的是，除非另有说明，“多个”的含义是两个或两个以上；术语“上”、“下”、“左”、“右”、“内”、“外”、“前端”、“后端”、“头部”、“尾部”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本发明和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本发明的限制。此外，术语“第一”、“第二”、“第三”等仅用于描述目的，而不能理解为指示或暗示相对重要性。
在本发明的描述中，还需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接；可以是直接相连，也可以通过中间媒介间接相连。对于本领域的普通技术人员而言，可视具体情况理解上述术语在本发明中的具体含义。
如图1所示，为本发明的家用光催化空气净化器的结构示意图，包括上盖2和外壳1，上盖2安装在外壳1的顶端，外壳1上设有进风口11和出风口12，进风口11位于外壳1的底部，出风口12位于外壳1的上部。
如图1所示，上盖2的顶面具有温度显示屏21，以显示温度；上盖2的顶面还具有风速控制按键22，通过风速控制按键22以控制风速；外壳1的顶面 还设有摆风控制按钮23，通过摆风控制按钮23以控制摆风；风速控制按键22和摆风控制按钮23之间还有个风速指示灯24，以指示风速的大小。
外壳1内设有导风筒和紫外线发生装置，如图1所示，导风筒包括内导风筒32和外导风筒31，内导风筒32和外导风筒31均由陶瓷制成，内导风筒32套在外导风筒31内部，内导风筒32和外导风筒31相对的表面烧结二氧化钛，紫外线发生装置为LED紫外线发光管4，LED紫外线发光管4安装在外导风筒31和内导风筒32之间。
具体过程为：LED紫外线发光管4发射的紫外线照射外导风筒31和内导风筒32表面的纳米二氧化钛光触媒，使成为强的光催化剂，当空气流过外导风筒31和内导风筒32的表面，与强的光催化剂接触时，能分解空气中的病毒，细菌和甲醛等。
另外，本发明采用LED紫外线发光管代替石英玻璃紫外线灯管，作为发射紫外线的光源，照射纳米二氧化钛，极大地延长了紫外线光源的使用寿命。LED紫外线发光管可以有各种频率，各种功率，各种形式。
具体的，外导风筒31的形状上小下大，外导风筒31的顶端有一开口311，可让空气流出，内导风筒32上大下小，安装于外导风筒31的中心；外导风筒31和内导风筒32之间具有间隙33，可让空气从这个间隙33中流过，再从外导风筒31的顶端开口311流出。
本发明通过外导风筒31和内导风筒32形成紫外线光漫射间隙33，使紫外线光由直射变成漫射，去除挡光效应，增大光触媒被照射的面积。
需要说明的是，外导风筒31的上小下大和内导风筒32的上大下小均优选为锥台结构，即外导风筒31正向放置，内导风筒32倒置于外导风筒31内。
由于外导风筒31顶端的开口311直径小，而内导风筒32上面的直径大，导致直射的紫外线光被挡住，不能漏出外导风筒31和内导风筒32的间隙33。
外导风筒31的内表面和内导风筒32的外表面烧结二氧化钛，二氧化钛为白色，紫外线光在外导风筒31和内导风筒32的间隙33内来回反射，最后形成紫外线光的漫射，紫外线的漫射光，没有了直射光的挡光效应，使间隙33内的 所有表面，都能得到紫外线的照射，提高了紫外线光的照射面积，提高了被激活的二氧化钛的面积。
进一步的，外导风筒31内壁的表面和内导风筒32外壁的表面均设为波纹结构321,312，如图3-5所示，为内导风筒32的结构示意图，如图6-8所示，为外导风筒31的结构示意图，内导风筒32的外表面具有波纹结构321，外导风筒31的内表面具有波纹结构312，波纹结构321,312能够增加纳米光触媒的附着面积。
需要说明的是，本发明对于波纹结构321,312的具体形状和尺寸不作限定，只要能够增加外导风筒31的内表面的面积和内导风筒32的外表面的面积，均在本发明的保护范围之内。
紫外线光漫射间隙33，以及外导风筒31和内导风筒32表面的波纹结构321,312，空气在间隙33表面一面翻滚，一面向上流动，与间隙33表面被激活的二氧化钛光触媒接触，空气中的病毒，细菌和有机物质，被瞬间分解成二氧化碳和水。达到净化空气的效果。
具体的，外导风筒31的外部套设活性炭过滤网5，如图1所示，活性炭过滤网5的作用是过滤空气中的灰尘，活性炭过滤网5的材料可以是活性炭过滤网5，也可以是其它材料的过滤网，过滤网可以有各种材料、结构、外形和密度，只要能够达到过滤灰尘的目的，均在本发明的保护范围之内。
另外，活性炭过滤网5的顶端安装回风板51，回风板51固定在活性炭过滤网5上部。
回风板51将经过杀菌和消毒的空气，向下拐弯，经过活性炭过滤网5过滤掉空气中灰尘后，到达外壳1的内腔的上部，再从上方的出风口12排出，出风口12随外壳1摆动，将洁净的空气送到人的呼吸空间和房间各处。
具体的，为了固定LED紫外线发光管，如图1所示，外壳1内设有发光管安装板6，LED紫外线发光管4安装于发光管安装板6上，发光管安装板6上设有导风孔61，发光管安装板6的下方设有轴流风扇71。
本发明通过轴流风扇71向上鼓风，使需要净化的空气流过外导风筒31和 内导风筒32之间间隙33。
进一步的，轴流风扇71的下方设有反光板72，反光板72上具有纳米光触媒，纳米光触媒既反射从上面漏出的紫外线，又有一定的洁净空气的作用。
更具体的，间隙33内设有泡沫陶瓷圆筒34，泡沫陶瓷圆筒34套设于内导风筒32的底部或中部，LED紫外线发光二级管4置于泡沫陶瓷圆筒34的外部和内部。
泡沫陶瓷圆筒34为多孔结构，其表面烧结有二氧化钛，多孔的泡沫陶瓷在漫射紫外线光的照射下，表面的二氧化钛被激活，而空气又可以在泡沫陶瓷的孔隙之间来回流动，增加了空气与激活的二氧化钛的接触次数，增强了空气净化的效果。
具体的，外壳1的下方设有摆动机构9，摆动机构9与外壳1之间设有初始滤网73，初始滤网73起到初步过滤空气的目的，摆动机构9与外壳1驱动连接，用于驱动外壳1左右摆动。
本发明的摆动机构9能够带动具有出风口12的外壳1作一定角度的往复摆动，人的呼吸空间高度为离地面1m-1.5m，摆风机构可使净化空气直接吹到人的呼吸空间，提高了净化空气的利用率。市场上的其他品牌的空气净化器，无摆风装置，净化空气向上吹出，净化空气不能直接到达人的呼吸空间，净化空气的利用率较低。
进一步的，如图1和图2所示，摆风电机91与曲柄92固定连接，曲柄92与连杆93铰链链接，连杆93与摆杆94铰链连接，摆杆94与摆动轴96固定连接，摆动轴96与摆动板95固定连接。当摆风电机91带动曲柄92转动时，在曲柄92和连杆93的作用下，摆杆94以一定的角度摆动。摆杆94与摆动轴96固定连接，摆动轴96与摆动板95固定连接。摆动板95上装有外壳1等各种零件，导致外壳1等以摆动轴96为中心，以一定角度来回摆动，外壳1上有出风孔12，净化后的空气从出风孔12直接吹到人们的呼吸空间，提高了净化空气的利用率。
曲柄连杆组件包括摆风电机91，曲柄92，连杆93和摆杆94，由于曲柄 92和连杆93之间的连接关系和具体结构在现有技术中较为常见，本发明对于对曲柄92连杆93机构的具体动作过程不作过多赘述。
更具体的，在外壳1的内部，有控制电路板13，在底座8内部有开关电源14，控制电路板13上有遥控电路，手机APP15遥控，可遥控摆风式空气净化器开关。
具体过程为：
(1)摆风电机91启动，带动曲柄92旋转，曲柄92带动连杆93动作，连杆93带动摆杆94摆动，摆杆94带动摆动轴96摆动，摆动轴96带动摆动板95摆动，摆动板95上装有外壳1等零件，外壳1上有出风孔12，风从出风孔12吹出，将净化后的空气吹向人们的呼吸空间。摆动板95上有进风孔，即空气通过进风孔进入外壳1内；
(2)轴流风扇71将空气从下向上吹，空气从外导风筒31和内导风筒32形成的缝隙中穿出，最后在外导风筒31的顶端开口311处流出，空气与外导风筒31和内导风筒32表面的纳米光触媒接触，外导风筒31和内导风筒32上的光触媒被LED紫外线发光管4发出的紫外线照射，激活光触媒，产生强大的瞬间分解能力，将空气中的病毒，细菌和有害气体瞬间分解。
以上所述，仅为本发明的具体实施方式，但本发明的保护范围并不局限于此，任何熟悉本技术领域的技术人员在本发明揭露的技术范围内，可轻易想到变化或替换，都应涵盖在本发明的保护范围之内。因此，本发明的保护范围应以所述权利要求的保护范围为准。

Claims (10)

  1. 一种家用光催化空气净化器，包括外壳，所述外壳上设有进风口和出风口，所述进风口位于所述外壳的底部，所述出风口位于所述外壳的上部，所述外壳内设有导风筒和紫外线发生装置，其特征在于，所述紫外线发生装置为LED紫外线发光管，所述导风筒包括内导风筒和外导风筒，所述内导风筒和所述外导风筒均由陶瓷制成，且表面烧结二氧化钛，所述内导风筒套设于所述外导风筒内，所述LED紫外线发光管设于所述外导风筒和所述内导风筒之间。
  2. 根据权利要求1所述的家用光催化空气净化器，其特征在于，所述外导风筒和所述内导风筒均设为锥台结构，所述外导风筒的顶部设有开口，所述内导风筒倒置于所述外导风筒内。
  3. 根据权利要求2所述的家用光催化空气净化器，其特征在于，所述二氧化钛烧结于所述外导风筒内壁的表面和所述内导风筒外壁的表面。
  4. 根据权利要求3所述的家用光催化空气净化器，其特征在于，所述外导风筒内壁的表面和所述内导风筒外壁的表面均设为波纹结构。
  5. 根据权利要求2所述的家用光催化空气净化器，其特征在于，所述外导风筒的外部套设活性炭过滤网，所述活性炭过滤网的顶端安装回风板。
  6. 根据权利要求1所述的家用光催化空气净化器，其特征只在于，所述外壳内设有发光管安装板，所述LED紫外线发光管安装于所述发光管安装板上，所述发光管安装板上设有导风孔，所述发光管安装板的下方设有轴流风扇，所述轴流风扇用于将空气通过导风孔吹入所述内导风筒和所述外导风筒之间的间隙内。
  7. 根据权利要求6所述的家用光催化空气净化器，其特征只在于，所述轴流风扇的下方设有反光板。
  8. 根据权利要求6所述的家用光催化空气净化器，其特征在于，所述间隙内设有泡沫陶瓷圆筒，所述泡沫陶瓷圆筒套设于所述内导风筒的底部或中部， 所述泡沫陶瓷圆筒为多孔结构，所述LED紫外线发光管置于所述泡沫陶瓷圆筒的外部和内部。
  9. 根据权利要求1-8任一所述的家用光催化空气净化器，其特征在于，所述外壳的下方设有摆动机构，所述摆动机构与所述外壳之间设有初始滤网，所述摆动机构与所述外壳驱动连接，用于驱动所述外壳左右摆动。
  10. 根据权利要求9所述的家用光催化空气净化器，其特征在于，所述摆动机构包括摆风电机、曲柄、连杆、摆杆、摆动轴和摆动板，所述摆风电机与所述曲柄固定连接，所述曲柄与所述连杆铰链连接，所述连杆与所述摆杆铰链连接，所述摆杆与所述摆动轴固定连接，所述摆动轴与所述摆动板固定连接，当所述摆风电机带动所述曲柄转动时，在所述曲柄和所述连杆的作用下，所述摆杆以一定的角度摆动。
PCT/CN2023/073952 2022-07-07 2023-01-31 一种家用光催化空气净化器 WO2024007574A1 (zh)

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