CN115585525B - Laser air purification device - Google Patents

Abstract

The invention relates to a laser air purification device which comprises an air inlet cavity, an air guide fan, an air outlet cavity, a laser generating module, a laser generating device, a shaping module and a light curtain module, wherein the air guide fan is electrified and started, ambient air enters a disinfection area from the air inlet cavity and then flows out from an air outlet of the air outlet cavity, the laser generating device is connected with an optical path, the laser generating device is electrified and then emits a laser source, the shaping module shapes the light source into a target light spot, the target light spot enters the light curtain module through a laser channel, the laser generating device is electrified and then emits the laser source, the shaping module shapes the light source into the target light spot, the target light spot enters the light curtain module and then forms a laser curtain in the light curtain module, and the light curtain module is connected with the air outlet and is used for generating at least one layer of laser curtain with a covering area of laser beam larger than or equal to the area of the air outlet, so that the air flowing out from the air outlet can be disinfected by laser, and the disinfection effect is comprehensive and thorough.

Description

Laser air purification device

Technical Field

The invention relates to the technical field of air purification, in particular to a laser air purification device.

Background

Dust and droplets in the air can be used as a carrier for transmitting bacteria and viruses, and air purification has gained wide attention in recent years, and the elimination of pollutants in the air, such as the elimination of disease infectious sources of bacteria, viruses, allergens and the like, is a difficult problem to be solved urgently. Traditional air purification technologies such as active carbon, anion generators, HEPA efficient filtration technology and the like are not comprehensive in disinfection areas, and the disinfection effect is not thorough.

CN215295274U discloses an air purifier with a laser device, which is provided with laser lamps at an air inlet and an air outlet for users to more intuitively observe the effect of the purifier and know the air quality of the current environment, but some bacterial viruses cannot be observed by naked eyes even if light is irradiated. And the problems of incomplete and incomplete killing are not solved.

CN114042175a discloses a laser disinfection robot suitable for indoor, and the robot that independently walks carries on laser emitter to disinfect and sterilize the air near the walking path, but still can appear the dead angle, disinfect and kill insufficiently comprehensively.

WO2021204686A1 air disinfection apparatus and a method of using the same, having a disinfection chamber into which an air inlet enters an inner space and flows out from an air outlet, in which a UVC light source device is provided, and in which a reflecting surface is provided in the inner space of the disinfection chamber, a laser beam passing through the inner space of the disinfection chamber in a multiple reflection manner is formed in the inner space, and disinfection is completed by air passing through the inner space, and such an arrangement in the inner space always has a blank area where the laser beam cannot reach, and cannot solve the problems of incomplete and incomplete disinfection.

There is an urgent need to kill the complete and thorough air cleaning device to solve the above problems.

Disclosure of Invention

The invention aims to provide a laser air purifying device which is used for solving the problems.

In order to achieve the above purpose, the invention provides a laser air purification device which comprises an air inlet cavity, an air guide fan, an air outlet cavity and a laser generation module, wherein the air guide fan is positioned between the air inlet cavity and the air outlet cavity, the air inlet cavity is positioned at the air inlet end of the air guide fan, the air outlet cavity is positioned at the air outlet end of the air guide fan, ambient air enters a sterilization area from the air inlet cavity after the air guide fan is electrified and started, the ambient air flows out from the air outlet of the air outlet cavity after the air guide fan is sterilized by the air purification device, the laser generation module comprises a laser control module and a laser generation device which are electrically connected, and a laser generation device, a shaping module and a light curtain module which are connected by an optical path, the laser generation device emits a laser light source after being electrified, and the shaping module shapes the light source into a target light spot, and the target light spot forms a laser curtain in the light curtain module after entering the light curtain module through a laser channel. The laser generating device emits laser light source to reshape the light source into target light spot through the concave lens and the convex lens of the reshaping module, which is not described in detail.

The light curtain module is connected to the air outlet and is used for generating at least one layer of laser curtain with the laser beam coverage area being larger than or equal to the area of the air outlet.

The light curtain module is in a topological shape and is connected to the air outlet, and a reflecting mechanism is arranged on the inner wall of the light curtain module and used for reflecting laser for multiple times to form a laser curtain.

The light curtain module is a polygonal mechanism, and the corners of the light curtain module are respectively provided with a reflecting mechanism for collecting laser received at the corners and emitting the laser for a plurality of times.

The device further comprises a screw thread pair, the screw thread pair penetrates through a panel bearing the reflecting mechanism to be abutted against the reflecting mechanism, and the pitching angle and/or the left-right tilting angle of the reflecting mechanism can be adjusted by adjusting the length of the screw thread pair penetrating through the panel.

The reflecting mechanism may be a flat mirror or a concave lens.

The light curtain module comprises a beam expander and is used for expanding the target light spot into a light spot which is larger than or equal to the air outlet.

The laser curtains can be arranged in parallel, vertically or at an included angle of 30-90 degrees.

Still include the static pressure case, set up in the skeleton upper strata, air outlet, plastic module and light curtain module set up in the static pressure incasement portion, the static pressure case top is equipped with the opening.

And an air guide groove is formed in the inner wall of the static pressure box.

And silencing cotton is arranged on the inner wall of the static pressure box.

The static pressure tank is characterized in that a movable plate is arranged at the top of the static pressure tank, the movable plate is closed in a standby state, and the air guide fan is started after being started.

The laser generator comprises a frame, and an air inlet cavity, an air guide fan, an air outlet cavity and a laser generating module are all arranged on the frame.

The frame is detachably connected with the framework.

The air inlet cavity, the air outlet cavity and the light curtain module are arranged in layers according to an upper-lower structure.

The frame is provided with an air inlet corresponding to the air inlet cavity and an air outlet corresponding to the air outlet.

The air inlet hole is provided with a first air guide channel, air flows through the first air guide channel to enter the air inlet cavity, the air outlet hole is provided with a second air guide channel, and air is guided to the periphery through the second air guide channel.

After the frame is connected with the framework, the lowest end of the frame is not contacted with the surface bearing the framework.

The skeleton is provided with an electric control area, an air inlet area, an air outlet area and a killing area from bottom to top respectively.

The frame comprises at least two mounting surfaces, each mounting surface being provided with a mounting location mechanically connected to the skeleton.

The assembly bits are reserved fixing lugs and/or guide grooves.

The framework is provided with a connecting code and a connecting convex position corresponding to the assembly position.

At least 2 surfaces of the frame are provided with air inlet holes corresponding to the positions of the air inlet cavities, one side of each air inlet hole is communicated with the outside air, and the other side of each air inlet hole is communicated with the air inlet area

The top of the frame is provided with an air outlet, one side of the air outlet is connected with the killing area, and the other side of the air outlet is connected with the external space.

The bottom of the framework is connected with universal wheels.

The frame front is provided with display panel, and this display panel is connected with automatically controlled district and electricity for show the amount of wind level and control fan.

The frame front is provided with the decorative board connection area, and the decorative board is higher than display panel after connecting.

The wavelength range of the laser source emitted by the laser generating device is 250nm to 280nm

The technical scheme of the invention has the following beneficial effects: the laser air purifying device provided by the invention has the advantages that the light curtain module is connected to the air outlet, and the generated laser beam covers the laser curtain with the area larger than or equal to the area of the air outlet, so that the air flowing out of the air outlet can be killed by the laser, and the killing effect is comprehensive and thorough.

Drawings

FIG. 1 is a schematic diagram of the overall structure of a laser air purification device according to an embodiment of the present invention;

FIG. 2 is a schematic view of a light curtain module according to an embodiment of the present invention;

FIG. 3 is a schematic view of a static pressure tank and components disposed therein according to an embodiment of the present invention;

FIG. 4 is a schematic view of the skeleton and the lower half of the skeleton in one embodiment of the invention.

Wherein, 1: an air inlet cavity; 2: a wind guide machine; 3: an air outlet cavity; 4: a laser generating device; 5: a shaping module; 6: a light curtain module; 61: a laser channel; 62: a reflection mechanism; 63: a thread pair; 64: a first opposing face; 65: a second opposing face; 7: a skeleton; 71: a connection code; 72: connecting the convex positions; 73: a universal wheel; 8: a frame; 81: a fixed ear; 82: a guide slot; 83: an air inlet hole; 9: a static pressure box; 91: a top opening; 10: an electric control area; 20: an air inlet area; 30: an air outlet area; 40: and killing the area.

Detailed Description

In order that the above objects, features and advantages of the invention will be readily understood, a more particular description of the invention will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The present invention may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the invention, whereby the invention is not limited to the specific embodiments disclosed below.

In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present invention, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present invention, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that when an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like are used herein for illustrative purposes only and are not meant to be the only embodiment.

In order that the above-recited objects, features and advantages of the present invention will become more readily apparent, a more particular description of the invention will be rendered by reference to the appended drawings and appended detailed description.

As shown in fig. 1, the embodiment provides a laser air purifying device, which comprises an air inlet cavity 1, an air guide fan 2, an air outlet cavity 3 and a laser generating module; the air guide fan 2 is positioned between the air inlet cavity 1 and the air outlet cavity 3; the air inlet cavity 1 is located the air inlet end of air guide machine 2, the air outlet cavity 3 is located the air outlet end of air guide machine 2, air enters from air inlet cavity 1 after the air guide machine 2 starts, flow out from the air outlet of air outlet cavity 3, the laser produces the module and includes laser control module (not shown in the figure) and laser generating device 4 that the electricity is connected, and laser generating device 4, plastic module 5 and the light curtain module 6 that the light path is connected, laser generating device 4 launches the laser light source after the circular telegram, plastic module 5 becomes the target facula with the light source shaping, after the target facula gets into the light curtain module 6 through laser passageway 61, form the laser curtain in the light curtain module 6, the light curtain module 6 is connected in the air outlet for produce the laser curtain that at least one deck laser beam coverage area is greater than or equal to the air outlet area. As shown in fig. 1, after the air guide fan 2 is started, air enters the purifying device from the air inlet end positioned at the lower side of the purifying device in the embodiment, flows into the light curtain module 6 from the air outlet positioned at the upper side of the purifying device in the embodiment after passing through the fan, and after being sterilized by the light curtain module 6, the sterilized air is discharged from the top of the purifying device in the embodiment. In the laser air purifying device of the embodiment, the light curtain module 6 is connected to the air outlet (located at the outer side of the air path), and the generated laser beam covers the laser curtain with the area larger than or equal to the area of the air outlet, so that air flowing out of the air outlet can be killed by laser, and the disposable killing rate can reach 99.9%, and the killing is complete and thorough.

In one embodiment, the light curtain module 6 is a topological shape, which means that the measurement properties such as the length, the size, the area, the volume and the like of the shape are not considered, i.e. the topological shape can be understood as any shape. For example, but not limited to, topological shapes include quadrilaterals, pentagons, squares, rectangles, circles, hexagons, decagons, and the like. That is, the shape of the inner surface of the light curtain module 6 may be, for example, but not limited to, a circle, a rectangle, a square, etc., and the number of the reflection mechanisms 62 connected to the inner wall of the light curtain module 6 is plural, and when the number of the reflection mechanisms 62 is an odd number, the reflection mechanisms 62 are distributed at different positions on the inner surface of the light curtain module according to the required degree of the density of the laser curtain; when the number of the plurality of reflecting mechanisms 62 is even, the plurality of reflecting mechanisms 62 are correspondingly and uniformly distributed on the inner surface of the light curtain module 6 every two; the reflecting mechanism 62 further includes a reflecting mirror that completely covers the inner surface of the light curtain module 6. For example, when the inner surface of the light curtain module 6 is circular, the reflecting mechanism 62 completely covers the inner surface.

As shown in fig. 2, in one embodiment, the light curtain module 6 has a quadrilateral structure, and is connected to the air outlet, and the reflecting mechanism 62 is disposed on any two opposite sides, and the reflecting mechanism 62 is used for reflecting the laser light for multiple times to form a laser curtain. The four sides of the quadrilateral structure are arranged on the inner side of the air outlet, and the size of the coverage area of the laser curtain can be easily adjusted by arranging the side length of the quadrilateral structure and the length of the reflecting mechanism. The coverage area of the laser beam is larger than or equal to the area of the air outlet, so that all air flowing through the light curtain module is killed by the laser, and the thoroughness and the comprehensiveness of the killing are ensured.

In one embodiment, the laser beam reflected by the reflecting mechanism 62 is reflected multiple times in the X direction to form a laser curtain perpendicular to the air-out direction. The air passes through the laser curtain to eliminate virus, bacteria and other harmful matters contained in the air, so as to achieve the aim of purifying the air.

In one embodiment, by providing a plurality of vertically stacked light curtain modules 6, a plurality of laser curtains perpendicular to the air outlet direction may be formed. Exemplary: for example, 2-4 light curtain modules 6 generate 2-4 layers of laser curtains perpendicular to the air outlet direction, and the light curtain modules can only correspond to one laser generating device 4 and a corresponding number of shaping modules 5, and laser emitted by the laser generating device 4 is respectively transmitted to the shaping modules 5 through beam splitters. The laser curtains are arranged in parallel or vertically or in an included angle of 30-90 degrees. Exemplary: such as the reflective mechanism 62 of the first layer of light curtain module 6 being disposed at a first opposing face 64, the reflective mechanism 62 of the second layer of light curtain module 6 being disposed at a second opposing face 65, and so on. After the air passes through the multilayer laser curtains, the disinfection effect is more comprehensive and thorough. It will be appreciated that at least one of the layers of the laser curtain may also be at an angle of 30-90 degrees to the direction of the air outlet, not necessarily perpendicular to the direction of the air outlet.

In one embodiment, the laser light reflected by the reflecting mechanism 62 is reflected multiple times along the Z direction to form a plurality of laser curtains perpendicular to the air outlet direction, and the number of layers of the laser curtains depends on the length of the reflecting mechanism 62 in the Z direction, and each reflection can be regarded as a layer of laser curtain. After the air passes through the multilayer laser curtains, the effect of disinfection and sterilization is better, and the purpose of thoroughly and comprehensively purifying the air is achieved.

In one embodiment, the light curtain module 6 includes a reflecting mirror and a beam expander, after the target light spot shaped by the shaping module 5 enters the light curtain module through the laser channel 61, the target light spot is received by the reflecting mirror and reflected to the beam expander, the beam expander expands the target light spot into a light spot greater than or equal to the air outlet, the angle between the laser curtain and the air outlet direction can be adjusted to form 30-90 degrees by adjusting the angles of the reflecting mirror and the beam expander, alternatively, the laser curtain is perpendicular to the air outlet direction or forms an angle greater than 30 degrees and less than 90 degrees with the air outlet direction, and compared with the perpendicular condition, the sterilizing area of the air passing through the laser is larger, the time is longer, and the sterilizing effect is better. After receiving the light spot incident by the shaping module, the light curtain module 6 enlarges the light spot to be larger than or equal to the light spot of the air outlet through the beam expander, and covers the whole air outlet, so that the air blown out from the air outlet is killed by laser, and harmful substances such as viruses and bacteria contained in the air are killed, thereby achieving the purpose of purifying the air. As described above, a plurality of laser curtains 6 may be provided to achieve a better air cleaning effect.

In one embodiment, the light curtain module 6 has a polygonal structure, and reflection mechanisms (not shown in the figure) are respectively arranged at corners of the light curtain module 6, so as to collect laser light received at corners and perform multiple emission. The reflecting mechanism in the corner can be arranged at a certain angle and is used for adjusting the angle of the reflected light. The light curtain module 6 is of a quadrilateral structure, and reflection mechanisms are respectively arranged at four corners of the light curtain module and used for collecting laser received at corners and emitting for multiple times.

In one embodiment, the reflecting mechanism 62 may be a flat mirror or a concave lens, it is understood that a flat mirror or a concave lens is only an example, and other forms or materials that can perform the reflecting function or the scattering function may be equivalent to a flat mirror or a concave lens. The plane mirrors reflect light, and the plane mirrors arranged on opposite surfaces mutually reflect to form a laser curtain. The concave lens can disperse received light to a plurality of directions again, and the concave lens that opposite face set up scatter and reflect each other, can form the laser curtain that light is denser, makes the energy of laser obtain better utilization, and air-purifying's effect is more optimized. The reflecting mechanism arranged on the opposite surface can be two plane mirrors, a plane mirror, a concave lens or two concave lenses.

In one embodiment, the screw thread pair 63 passes through a panel carrying the reflecting mechanisms 62 to be abutted against the reflecting mechanisms 62, and four corners of each reflecting mechanism 62 are respectively provided with one screw thread pair. The reflecting mechanism 62 is connected with a panel carrying the reflecting mechanism 62 through a spring, the expansion and the deformation of the spring can be regulated by regulating the length of the screw thread pair 63 penetrating through the panel, so that the pitching angle and/or the left-right inclination angle of the reflecting mechanism 62 can be regulated, and the degree of the density of the laser curtain can be regulated by different angles of the reflecting mechanism 62. Specifically, as shown in fig. 2, the pitch angle of the reflection mechanism 62 is adjusted by adjusting the screw thread pairs 63 arranged up and down, the length of the screw thread pair 63 in the upper row passing through the panel is shorter than the length of the screw thread pair 63 in the lower row passing through the panel, the screw thread pair 62 in the lower row pushes the lower side of the reflection mechanism 62 away from the panel, the position of the upper side of the reflection mechanism 62 is kept unchanged under the action of the spring, the reflection mechanism 62 is adjusted to be directed upward, and the pitch and the left-right inclination angles of the reflection mechanism 62 are adjusted similarly. Preferably, the pitch angle and the left-right inclination angle of the reflecting mechanism 62 are adjusted within the range of 0.2-20 degrees, preferably the pitch angle and the left-right inclination angle of the reflecting mechanism 62 are adjusted within the range of 1-10 degrees, the pitch angle and the left-right inclination angle of the reflecting mechanism 62 are adjusted to adjust the incidence angle of a target light spot, deflection adjustment of the reflecting mechanism 62 in the three-dimensional direction can be realized by adjusting the reflecting mechanism 62 at different positions of four corners, so that the density of light rays reflected by the reflecting mechanism 62 is adjusted, and finally, the density of a laser curtain is adjusted, and the higher the density of the laser curtain is, the better the killing effect is. The angle adjusting function can be realized by arranging 2-6 screw thread pairs according to the size of the reflecting mechanism 62.

The incidence angle of the target light spot on the light curtain module 6 is adjusted, and the included angle between the laser curtain and the air outlet direction can be adjusted to be 30-90 degrees. Specifically, if the target light spot horizontally enters the light curtain module 6, the light curtain formed by reflection between the reflection mechanisms 62 is perpendicular to the air outlet direction; if the incidence angle of the target light spot entering the light curtain module 6 is 30 degrees with the horizontal direction, the laser curtain forms an included angle of 30 degrees with the air outlet direction.

As shown in fig. 3, in one embodiment, the laser air purifying device of the present invention further includes a static pressure tank 9, and the air outlet (located at the bottom connection of the light curtain module), the shaping module 5 and the light curtain module 6 are all disposed inside the static pressure tank 9. The hydrostatic tank 9 has a top opening 91, the top opening 91 being smaller than the top panel. The static pressure box 9 surrounds the air outlet, the shaping module 5 and the light curtain module 6 inside, and after air enters the static pressure box 9 from the air outlet, the air can only flow out from the top opening, and the air passes through the sterilization of the light curtain module 6; on the other hand, because the top opening 91 is smaller than the top panel, air can continuously circulate in the static pressure box 9, the flowing time of the air in the static pressure box 9 is prolonged, the flowing air absorbs laser light scattered in the box body for multiple times, the air can be disinfected and sterilized for the second time, the utilization rate of the laser light is improved, the air purifying effect is enhanced, and the air after being disinfected by the laser light is finally discharged out of the static pressure box 9 from the top opening 91; meanwhile, scattered laser is absorbed in the static pressure box, and the laser cannot be exposed to cause light pollution. It can be appreciated that the laser air purifying device of the embodiment does not need to specially control the flow rate of air, so as to achieve the purposes of complete sterilization and complete sterilization. The scattered laser light for performing the second disinfection and sterilization on the air mentioned in this embodiment refers to the laser light scattered outside the light curtain module by the light curtain module 6, for example, the concave lens mentioned in the previous embodiment can reflect the received laser light to the reflection mechanism of the opposite surface, and also can direct the laser light to multiple directions, so as to form the scattered laser light in the space of the static pressure box 9; the mirror can be placed at the appointed position of the light curtain module 6 or the static pressure box 9 or the reflective film is arranged in the static pressure box 9, so that the laser is filled in the whole static pressure box 9, and the air entering the static pressure box 9 passes through the light curtain module 6 for the first time and is scattered for the second time to be killed, and the effect of killing is enhanced.

In one embodiment, the area of the top opening 91 is no greater than 1/2 of the area of the top panel.

In one embodiment, the area S of the top opening 91 is less than or equal to (Q/V). Times.2, where S represents the area of the air outlet; q represents the air inlet quantity entering the air duct from the air inlet end; v denotes the wind velocity blown out of the top opening 91, which can be measured by a measuring tool. Calculation of intake Q: if the wind guide machine is a large wind guide machine, the wind speed can be accurately measured by an anemometer, and Q=V ₀ F，V ₀ The wind speed of the air inlet end is represented, and F represents the sectional area of the air duct; according to different types of the air guide fan, the air inlet quantity Q can be calculated according to the following calculation formula: q= (fan power x 3600 x fan efficiency x mechanical transmission efficiency x 1000)/wind pressure, fan efficiency may be 0.719 to 0.8; the mechanical transmission efficiency is 0.95 for the V-belt transmission and 0.98 for the coupling transmission; the wind pressure may be measured by a measuring tool. Through a wind guiding machineThe method for calculating the air intake of the air duct and related parameters of the air duct can also be calculated in some prior art, and will not be repeated here. More preferably, the area S of the top opening 91 is < Q/V. The wind speed V is kept between 3 and 20m/s, and is preferably 4+/-0.5 m/s, 6+/-0.5 m/s, 8+/-0.5 m/s, 11+/-0.5 m/s, 12+/-0.5 m/s, 13+/-0.5 m/s, 14+/-0.5 m/s and 15+/-0.5 m/s according to the size of a free space (the space for placing the laser air purifying device in the embodiment), the purpose of ensuring the rapid air outlet speed is to ensure the rapid circulation of air in the free space, and the aim of rapidly killing the air by the laser air purifying device in the embodiment is achieved. The air purification device can finish the purification of all air in a 30m0 space within 5-30 minutes, and has high disinfection rate and good effect.

In one embodiment, the inner wall of the static pressure tank 9 is provided with an air guide groove. The air guide grooves are in a spiral concave groove structure along the inner wall of the static pressure box 9 or in a spiral convex structure on the inner wall of the static pressure box 9, each concave groove or 2 grooves between the protrusions are air guide grooves, the air guide grooves can guide the air flow direction in the static pressure box 9, the flowing time of the air in the static pressure box 9 is prolonged, the air in the air is sterilized by laser scattered in the box body for many times in the circulating flowing process, the second sterilization of the air is completed, and finally the air is discharged from the top opening 91, so that the sterilizing effect is enhanced.

In one embodiment, the inner wall of the static pressure tank 9 is provided with silencing cotton, and the silencing cotton absorbs the sound of the air flow in the tank body, so that the noise of the laser air purifying device is reduced.

In one embodiment, a movable plate is arranged at the top of the static pressure box 9, the movable plate is closed in a standby state, the air guide fan is started after being started, and the movable plate plays a role in dust prevention when being closed.

As shown in fig. 4, in one embodiment, the laser air purifying device of the present invention further includes a skeleton 7 and a frame 8, where the air inlet chamber 1, the air guide fan 2, the air outlet chamber 3, the laser generating module and the static pressure box 9 are all disposed on the skeleton 7. The frame 8 and the framework 7 are detachably connected. The air inlet cavity 1, the air outlet cavity 3 and the light curtain module 6 are arranged in a layered mode according to an upper-lower structure, and therefore fault overhaul and equipment maintenance are facilitated.

The frame 8 is provided with an air inlet 83 corresponding to the air inlet cavity 1 and an air outlet corresponding to the air outlet. The air after laser sterilization is discharged to the free space through the air outlet and the air outlet hole in sequence.

In one embodiment, the top opening 91 of the static pressure box 9 corresponds to the position of the air outlet hole on the frame 8, and the air after laser sterilization is discharged to the free space through the air outlet, the top opening 91 and the air outlet hole in sequence.

In one embodiment, the air inlet 83 is provided with a first air guiding channel, and air flows through the first air guiding channel to enter the air inlet cavity 1, wherein the first air guiding channel is arranged at an inclined angle, and the angle can make an angle of 15-165 degrees with the vertical plane; the air outlet is provided with a second air guide channel, air is guided to the periphery through the second air guide channel, the second air guide channel is of a tubular structure with an inclined angle, air after laser sterilization can be discharged according to the inclined angle of a pipeline, the pipeline can be inclined towards a plurality of directions and also can be inclined towards the same direction, the angle formed by the air outlet and a horizontal plane is larger than 15 degrees, under the combined action of the first air guide channel and the second air guide channel, the air enters from the bottom of the laser air purification device, flows obliquely upwards after sterilization, forms a circulation body in a free space, and enables all air in the space to circulate, so that the air after sterilization can quickly flow into the whole space. Achieving the purposes of complete killing and thorough killing.

The bottom of the framework 7 is connected with universal wheels 73, and after the framework 8 is connected with the framework 7, the lowest end of the framework 8 is not contacted with the bearing surface. The purification apparatus of the present invention can be easily moved to a desired position by the universal wheel 73.

The skeleton 7 is provided with an electric control area 10, an air inlet area 20, an air outlet area 30 and a killing area 40 from bottom to top. Each of the areas is provided with an electronic device such as a circuit board and the like, and the electric control area 10 is provided with the electronic device. When the device fails, the partition is convenient to detect the failure point and is convenient to maintain.

In one embodiment, the frame 8 comprises at least two mounting surfaces, each provided with a mounting location mechanically connected to the skeleton 7. The fitting bits are reserved fixing lugs 81 or guide slots 82. The frame 7 is provided with a connecting code 71 and a connecting lug 72 corresponding to the assembly position. The connecting lug 72 is adapted to the guide groove, and after the connecting lug is adapted to the guide groove, the frame 8 and the framework 7 are connected into a whole, and further: after the connecting code 71 and the fixing lug 81 are connected through the screws, the connection between the framework 7 and the framework 8 is reinforced, so that the relative displacement can not be generated after the connection, and the portable assembly structure is convenient for assembly and disassembly of the device and saves manpower.

In one embodiment, the frame 8 is provided with air inlet holes on at least 2 sides corresponding to the position of the air inlet cavity 1, and one side of the air inlet holes is communicated with the outside air, and the other side of the air inlet holes is communicated with the air inlet area 20. The top of the frame 8 is provided with an air outlet, one side of the air outlet is connected with the killing area 40, and the other side of the air outlet is connected with the external space.

The front of the frame 8 is provided with a display panel which is electrically connected with the electric control area 10 and is used for man-machine interaction, displaying air volume level, fault alarm, fan control and the like. The frame front is provided with the decorative board connecting region, and the decorative board is higher than display panel after connecting.

In one embodiment, the wavelength range of the laser light source emitted by the laser generating device 4 of the laser air purifying device is 250nm to 280nm. The laser light source of the wave band has higher energy, can better kill viruses and bacteria in the air, and the killed viruses or bacteria can not be revived.

It should be noted that it will be apparent to those skilled in the art that the present invention is not limited to the details of the above-described exemplary embodiments, but may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein.

The principles and embodiments of the present invention have been described in detail with reference to specific examples, which are provided to facilitate understanding of the method and core ideas of the present invention; also, it is within the scope of the present invention to be modified by those of ordinary skill in the art in light of the present teachings. In view of the foregoing, this description should not be construed as limiting the invention.

Claims (23)

1. A laser air purification device which is characterized in that: comprises an air inlet cavity, a wind guide fan, an air outlet cavity and a laser generating module; the air guide fan is positioned between the air inlet cavity and the air outlet cavity; the laser generating module comprises a laser generating device, a shaping module and a light curtain module which are connected through a light path, wherein the laser generating device is electrified and emits a laser source, the shaping module shapes the light source into a target light spot, the target light spot enters the light curtain module through a laser channel and then forms a laser curtain in the light curtain module, and the light curtain module is connected to the air outlet and is used for generating at least one layer of laser curtain with the coverage area of laser beams being larger than or equal to that of the air outlet;

the light curtain module is of a polygonal structure and is connected with the air outlet, and a reflecting mechanism is arranged on the inner wall of the light curtain module and used for reflecting laser for multiple times to form a laser curtain; the corner of the light curtain module is also provided with the reflecting mechanisms respectively, and the reflecting mechanisms are used for collecting laser received at corners and emitting the laser for a plurality of times;

the laser air purification device further comprises thread pairs, four corners of each reflection mechanism are respectively provided with one thread pair, the thread pairs penetrate through a panel bearing the reflection mechanism to be abutted against the reflection mechanism, and the pitching angle and/or the left-right tilting angle of the reflection mechanism can be adjusted by adjusting the length of the thread pairs penetrating through the panel;

the laser air purification device further comprises a static pressure box, wherein the air outlet, the shaping module and the light curtain module are arranged in the static pressure box, and an opening is formed in the top of the static pressure box; the opening is less than 1/2 of the top panel of the static pressure tank.

2. A laser air purification apparatus as claimed in claim 1, wherein: the reflecting mechanism may be a flat mirror or a concave lens.

3. A laser air purification apparatus as claimed in claim 1, wherein: the light curtain module comprises a beam expander and is used for expanding the target light spot into a light spot which is larger than or equal to the air outlet.

4. A laser air purification apparatus as claimed in claim 1, wherein: the laser curtains are arranged in parallel, vertically or at an included angle of 30-90 degrees.

5. The laser air purification device according to claim 1, wherein the inner wall of the static pressure box is provided with an air guide groove.

6. The laser air purification device according to claim 1, wherein the inner wall of the static pressure tank is provided with noise-reducing cotton.

7. A laser air purification apparatus as claimed in claim 1, wherein: the static pressure tank is characterized in that a movable plate is arranged at the top of the static pressure tank, the movable plate is closed in a standby state, and the air guide fan is started after being started.

8. A laser air purification apparatus as claimed in claim 1, wherein: the laser generator comprises a frame, and an air inlet cavity, an air guide fan, an air outlet cavity and a laser generating module are all arranged on the frame.

9. The laser air purification device of claim 8, wherein: the frame is detachably connected with the framework.

10. The laser air cleaner of claim 8, wherein the air inlet chamber, the air outlet chamber, and the light curtain module are layered in an up-down configuration.

11. A laser air purification apparatus as claimed in claim 9, wherein: the frame is provided with an air inlet corresponding to the air inlet cavity and an air outlet corresponding to the air outlet.

12. A laser air cleaning device as defined in claim 11, wherein: the air inlet hole is provided with a first air guide channel, air flows through the first air guide channel to enter the air inlet cavity, the air outlet hole is provided with a second air guide channel, and air is guided to the periphery through the second air guide channel.

13. A laser air purification apparatus as claimed in claim 9, wherein: after the frame is connected with the framework, the lowest end of the frame is not contacted with the bearing surface.

14. The laser air purification device of claim 8, wherein: the skeleton is provided with an electric control area, an air inlet area, an air outlet area and a killing area from bottom to top respectively.

15. A laser air purification apparatus as claimed in claim 9, wherein: the frame comprises at least two mounting surfaces, each mounting surface being provided with a mounting location mechanically connected to the skeleton.

16. A laser air cleaning device as defined in claim 15, wherein: the assembly bits are reserved fixing lugs and/or guide grooves.

17. A laser air cleaning device as defined in claim 16, wherein: the framework is provided with a connecting code and a connecting convex position corresponding to the assembly position.

18. A laser air cleaning device as defined in claim 11, wherein: at least 2 surfaces of the frame are provided with air inlet holes corresponding to the positions of the air inlet cavities, one side of each air inlet hole is communicated with outside air, and the other side of each air inlet hole is communicated with the air inlet area.

19. A laser air cleaning device as defined in claim 14, wherein: the top of the frame is provided with an air outlet, one side of the air outlet is connected with the killing area, and the other side of the air outlet is connected with the external space.

20. The laser air purification device of claim 8, wherein: the bottom of the framework is connected with universal wheels.

21. A laser air cleaning device as defined in claim 14, wherein: the front of the frame is provided with a display panel which is electrically connected with the electric control area and is used for displaying the air volume level and controlling the fan.

22. A laser air purification apparatus as claimed in claim 9, wherein: the frame front is provided with the decorative board connection area, and the decorative board is higher than display panel after connecting.

23. A laser air cleaning device as claimed in any one of claims 1 to 22, wherein: the wavelength range of the laser light source emitted by the laser generating device is 250nm to 280nm.

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