Air duct structure of air purifier

Abstract

The utility model discloses an air duct structure of an air purifier, which belongs to the technical field of ventilation equipment and comprises a shell, an air inlet is arranged at the lower end of the shell, and an air outlet is arranged at the upper end of the shell; the fan is arranged on the side, close to the air inlet, in the shell; the filter screen is in an annular column shape, the filter screen is arranged on the side, close to the air outlet, in the shell, and the air outlet is located in the inner side of the filter screen; an inertia dust collection groove is further formed in the shell and located on the outer side of the upper end of the filter screen. Harmful substance large particles in air are deposited in advance before filtration of the filter screen, and the situation that the harmful substance large particles are directly blown to the filter screen to cause blockage or damage to the filter screen is avoided, so that the filtering effect of the filter screen is improved, and the service life of the filter screen is prolonged.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to an air duct structure of an air purifier. Background Art

[0002] In the working environment of manicurists, there are harmful and dangerous factors, such as dust, volatile harmful substances, chemical substances in the air of the working area, and visual fatigue caused by insufficient lighting in the working place. In addition, the special feature of the manicurist's workplace is that it is small in area and mostly located in the aisles of large shopping malls, stores, and office buildings, which makes it difficult to provide air ventilation by the ventilation system equipped in the building. In order to reduce the impact of harmful factors, the harmful factors must be eliminated in whole or in part. These problems can be solved by using personal respiratory protection equipment and placing additional lighting equipment in the workplace. However, using personal respiratory protection equipment during work brings certain inconveniences and cannot guarantee the protection of the manicurist's customers.

[0003] During the process of manicure, such as nail polishing and cutin removal, a large amount of dust and chemical fumes will be generated, and harmful aerosols and particles will be generated during the process of drying nails. The air purifier can purify the air in the environment of manicure and pedicure.

[0004] The existing air purifier sucks the air in the environment into the device through a fan and directly blows the air towards the filter screen. The air is purified by the filter screen. During the work of manicure and pedicure, pollutants with larger particles will be generated. These large-particle pollutants are directly blown towards the filter screen, which is likely to cause blockage or damage to the filter screen, resulting in a deterioration of the filtering effect and a reduction in the service life of the filter screen. Summary of the Utility Model

[0005] The purpose of the utility model is to solve at least one of the technical problems existing in the prior art. For this reason, the utility model provides an air duct structure of an air purifier, which can deposit large-particle pollutants in advance, avoid large-particle pollutants from directly blowing towards the filter screen, extend the service life of the filter screen, and improve the filtering effect.

[0006] The air duct structure of the air purifier according to the embodiment of the utility model includes: a housing, an air inlet is opened at the lower end of the housing, and an air outlet is opened at the upper end of the housing; a fan, the fan is arranged on one side of the housing close to the air inlet; a filter screen, the filter screen is in a circular column shape, the filter screen is arranged on one side of the housing close to the air outlet, and the air outlet is located inside the filter screen; an inertial dust collection groove is further arranged in the housing, and the inertial dust collection groove is located outside the upper end of the filter screen.

[0007] The air duct structure of the air purifier according to the embodiments of the present utility model has at least the following beneficial effects: large particles of harmful substances in the air are deposited in advance before being filtered by the filter screen, preventing large particles of harmful substances from directly blowing onto the filter screen and causing blockage or damage to the filter screen, thereby improving the filtering effect of the filter screen and extending the service life of the filter screen.

[0008] According to some embodiments of the present utility model, the inertial dust collection groove is annular and is provided on the inner wall of the top of the housing.

[0009] According to some embodiments of the present utility model, a flow guide cover is further included. The flow guide cover is arranged inside the filter screen, and the cross-sectional area of the flow guide cover gradually increases from top to bottom.

[0010] According to some embodiments of the present utility model, an air inlet grid is provided on the air inlet.

[0011] According to some embodiments of the present utility model, an air inlet cover plate is detachably installed on the air inlet, and an air inlet grid is provided on the air inlet cover plate.

[0012] According to some embodiments of the present utility model, a first shock-absorbing washer is provided between the air inlet grid and the air inlet cover plate.

[0013] According to some embodiments of the present utility model, the air inlet grid is formed by splicing a plurality of hexagonal slender air ducts.

[0014] According to some embodiments of the present utility model, a flow guide plate is provided between the air inlet grid and the fan.

[0015] According to some embodiments of the present utility model, a disinfection mechanism is further included. The disinfection mechanism is arranged inside the housing and is used for disinfecting the air inside the housing.

[0016] According to some embodiments of the present utility model, the disinfection mechanism is located below the inertial dust collector.

[0017] The additional aspects and advantages of the present utility model will be partially given in the following description, partially become obvious from the following description, or be understood through the practice of the present utility model. Description of the Drawings

[0018] The present utility model will be further described below in conjunction with the drawings and embodiments:

[0019] Figure 1 is a schematic structural diagram of the air purifier according to the embodiment of the present utility model;

[0020] Figure 2 is Figure 1 a right-side cross-sectional view of

[0021] Figure 3It is a schematic diagram of the air and heat flow directions inside the air purifier according to an embodiment of the present utility model;

[0022] Figure 4 It is Figure 2 a partial enlarged view of position A in

[0023] Figure 5 It is Figure 1 a cross-sectional view of

[0024] Figure 6 It is Figure 5 a partial enlarged view of position B in Description of the drawings:

[0026] Housing 100; air inlet 110; trigger switch 111; air outlet 120; light condensing part 130; bracket 140; inertial dust collection tank 150; guide plate 160;

[0027] Air inlet cover plate 200; air inlet grid 210; slender air duct 211; trigger member 220; first shock-absorbing washer 230;

[0028] Air outlet grid 310;

[0029] Fan 400; second shock-absorbing washer 410;

[0030] Illumination mechanism 500; annular light strip 510; second scattering member 520;

[0031] Filter net 600;

[0032] Disinfection mechanism 700; ultraviolet generator 710; first scattering member 720; ultraviolet light-emitting diode 730;

[0033] Power supply assembly 800; guide cover 810; heat dissipation holes 820. Detailed implementation manners

[0034] This part will describe in detail the specific embodiments of the present utility model. The preferred embodiments of the present utility model are shown in the drawings. The role of the drawings is to supplement the description of the text part of the specification, enabling people to visually and vividly understand each technical feature and the overall technical solution of the present utility model, but it should not be construed as a limitation on the protection scope of the present utility model.

[0035] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as up, down, front, back, left, right, etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the present utility model.

[0036] In the description of the present utility model, the meaning of "a number of" is one or more, the meaning of "a plurality of" is more than two, and understandings such as "greater than", "less than", "exceeding", etc. do not include the corresponding number, while understandings such as "above", "below", "within", etc. include the corresponding number. If there is a description of "first" and "second", it is only for the purpose of distinguishing technical features and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features or implicitly indicating the sequence relationship of the indicated technical features.

[0037] In the description of the present utility model, unless otherwise clearly defined, words such as "arrangement", "installation", "connection", etc. should be understood in a broad sense, and those skilled in the art to which the present utility model pertains can reasonably determine the specific meanings of the above words in the present utility model in combination with the specific content of the technical solution.

[0038] Reference Figures 1 to 6 Describe the air duct structure of the air purifier according to an embodiment of the present utility model.

[0039] As Figures 1 to 6 As shown, the air duct structure of the air purifier according to an embodiment of the present utility model includes: a housing 100, an air inlet 110 is provided at the lower end of the housing 100, and an air outlet 120 is provided at the upper end of the housing 100; a fan 400, the fan 400 is arranged on one side of the housing 100 close to the air inlet 110; a filter net 600, the filter net 600 is in a circular column shape, the filter net 600 is arranged on one side of the housing 100 close to the air outlet 120, and the air outlet 120 is located inside the filter net 600; an inertial dust collection groove 150 is further arranged in the housing 100, and the inertial dust collection groove 150 is located outside the upper end of the filter net 600.

[0040] The inertial dust collection groove 150 is annular, and the inertial dust collection groove 150 is arranged on the inner wall of the top of the housing 100. It further includes a flow guiding cover 810, the flow guiding cover 810 is arranged inside the filter net 600, and the cross-sectional area of the flow guiding cover 810 gradually increases from top to bottom. An air inlet grid 210 is provided on the air inlet 110. An air inlet cover plate 200 is detachably installed on the air inlet 110, and an air inlet grid 210 is provided on the air inlet cover plate 200. A first damping washer 230 is arranged between the air inlet grid 210 and the air inlet cover plate 200. The air inlet grid 210 is formed by splicing a plurality of hexagonal slender air ducts 211. A flow guiding plate 160 is arranged between the air inlet grid 210 and the fan 400. It further includes a disinfection mechanism 700, the disinfection mechanism 700 is arranged in the housing 100, and the disinfection mechanism 700 is used for disinfecting the air inside the housing 100. The disinfection mechanism 700 is located below the inertial dust collector.

[0041] As Figures 1 to 6As shown in the figure, the housing 100 is generally cylindrical. The air inlet 110 is arranged at the lower end of the housing 100 along the axis of the housing 100, and the air outlet 120 is arranged at the upper end of the housing 100 along the axis of the housing 100. The fan 400 is arranged on one side of the housing 100 close to the air inlet 110, and the filter net 600 is arranged on one side of the housing 100 close to the air outlet 120. Both the fan 400 and the filter net 600 are arranged along the axis of the housing 100. When the fan 400 operates, the air in the manicure and pedicure working environment is inhaled into the housing 100 from the air inlet 110. After the air enters the housing 100, under the action of the fan 400, it flows in a direction away from the axis of the housing 100, so that the air flows to the outside of the fan 400 and flows upward along the inner wall of the housing 100. After the air flows upward to the outside of the filter net 600, it passes through the filter net 600 from the outside to the inside. The filter net 600 purifies the air, and the purified air flows out from the air outlet 120 at the upper end of the housing 100.

[0042] As Figures 2 to 6 shown in the figure, the disinfection mechanism 700 is arranged in the housing 100. The disinfection mechanism 700 includes an ultraviolet generator 710. The ultraviolet generator 710 is annular and arranged on the bottom surface inside the housing 100. A plurality of ultraviolet light-emitting diodes 730 are evenly distributed along the circumferential direction on the upper end surface of the ultraviolet generator 710, and a first scattering member 720 is irradiated on the ultraviolet generator 710. Thus, the ultraviolet light emitted by the ultraviolet light-emitting diodes 730 passes through the transparent first scattering member 720 and then irradiates the area where the air flows in the housing 100, thereby killing the germs in the air in the housing 100. The transparent first scattering member 720 protects the ultraviolet light-emitting diodes 730 on the one hand and does not block the ultraviolet light emitted by the ultraviolet light-emitting diodes 730 on the other hand.

[0043] In the above technical solution, in addition to using the ultraviolet irradiation method for disinfection and sterilization, the disinfection mechanism 700 can also adopt other common disinfection and sterilization methods, such as heat disinfection, other radiation disinfection, etc. In addition, the installation position and shape of the ultraviolet generator 710 can also be adjusted according to the layout of the internal air duct of the housing 100.

[0044] In some specific embodiments of the present invention, the operation of the disinfection mechanism 700 is interlocked with the operation of the fan 400, that is, when the user switches the air purifier to the air purification mode, the fan 400 operates and the disinfection mechanism 700 automatically stops operating. The fan 400 inhales the air in the environment into the device and filters it through the filter net 600 for purification. After the air purification mode runs to completion, the user switches the air purifier to the disinfection mode. The disinfection mechanism 700 operates and the fan 400 stops operating. The disinfection mechanism 700 kills the germs remaining in the device by ultraviolet light irradiation.

[0045] In the above technical solution, the power supply component 800 is a power adapter connected to an external power supply. The power supply component 800 does not need to supply power to the lighting mechanism 500 and the disinfection mechanism 700 simultaneously. When entering the air purification mode, the external power supply directly supplies power to the fan 400. When powered by a 220V external power supply, the fan 400 has strong wind pressure, and the power supply component 800 supplies power to the lighting mechanism 500 alone; when entering the disinfection mode, the power supply component 800 supplies power to the disinfection mechanism 700 alone. This reduces the cost of the power supply component 800 and improves the power and purification effect of the fan 400.

[0046] During the process of manicure and pedicure, a large amount of dust and harmful substances will be generated. After being purified by the air purifier, these dust and harmful substances will remain inside the device. The disinfection mechanism 700 automatically disinfects and sterilizes the internal space of the device after the air purification work is completed, which can replace the user to disassemble the device for manual disinfection. On the one hand, it reduces the operation burden of the user, and on the other hand, it avoids the user coming into contact with harmful substances, thus ensuring the safety of the user.

[0047] In some other specific embodiments of the present invention, the disinfection mechanism 700, the lighting mechanism 500 and the fan 400 can operate simultaneously. The external power supply directly supplies power to the fan 400, and the power supply component 800 supplies power to the disinfection mechanism 700 and the lighting mechanism 500 simultaneously. At this time, the fan 400 operates to suck air from the air inlet 110 into the device. The disinfection mechanism 700 irradiates and disinfects the air sucked into the device, and the air is then filtered by the filter net 600 and discharged from the air outlet 120. Thus, through the dual effects of the disinfection mechanism 700 and the filter net, the purification effect of the air purifier is further improved.

[0048] As Figures 1 to 6 shown, a bracket 140 is provided inside the housing 100. The fan 400 is arranged at the lower end of the bracket 140. The fan 400 is connected to the bracket 140 through a second shock-absorbing washer 410. The power supply component 800 and the filter net 600 are arranged at the upper end of the bracket 140.

[0049] Currently, air purification equipment used in nail salons usually sets the power adapter outside the air purification equipment to reduce the impact of heat generation and vibration of the power adapter on the air purification equipment. However, this will cause the fan to be powered by the power adapter, and the power supply voltage of the power adapter is relatively low, resulting in problems such as low wind pressure generated by the fan 400.

[0050] The power supply assembly 800 of this air purifier is integrally arranged inside the housing 100. After the external power supply is connected to the power supply assembly 800, the power supply assembly 800 supplies power to the lighting mechanism 500 and the disinfection mechanism 700. At the same time, the external power supply is directly electrically connected to the fan 400. Thus, the fan can be driven by a higher voltage and has a stronger power. In addition, a flow guide cover 810 is covered on the power supply assembly 800. The flow guide cover 810 is generally in a conical shape with a narrower upper part and a wider lower part. The flow guide cover 810 plays a role in guiding the air inside the housing 100, guiding the air after passing through the filter net 600 towards the air outlet 120, thereby reducing the overall vibration and noise of the air purifier. On the other hand, the flow guide cover 810 plays a protective role for the power supply assembly 800, preventing foreign objects from damaging the power supply assembly 800, and also preventing users from touching the power supply assembly 800 when disassembling the device to replace the filter net 600, ensuring the safety of users. The power supply assembly 800 inside the flow guide cover 810 dissipates heat through the heat dissipation holes 820. The hot air inside the flow guide cover 810 rises along the inner wall of the flow guide cover 810. At this time, the airflow driven by the fan 400 is along the outer wall of the flow guide cover 810 after passing through the filter net 600. Therefore, the airflow driven by the fan 400 will take away part of the heat of the hot air inside the flow guide cover 810, thereby accelerating the heat dissipation of the power supply.

[0051] Thus, after the power supply assembly 800 is built-in, the fan 400 obtains stronger power due to being directly connected to the external power supply, thereby providing a stronger air duct to bring better purification effect and higher purification efficiency. The power supply assembly 800 includes a power adapter, and the lighting mechanism 500 and the disinfection mechanism 700 are powered by converting the external power supply through the power adapter. For the vibration and heat generation problems brought about by the built-in power supply assembly 800 inside the housing 100, by setting a second damping washer 410 between the fan 400 and the bracket 140, the influence of the vibration brought about by the stronger air pressure is reduced; by setting the flow guide cover 810, using the air flow during the operation of the air purifier, the heat dissipation of the power supply assembly 800 is promoted, and at the same time, the flow guide cover 810 also plays a protective role for users and the power supply assembly 800.

[0052] As Figures 1 to 6 shown, the inertial dust collection groove 150 is annular and is arranged on the inner wall of the top of the housing 100. The filter net 600 is in a circular columnar shape, and the inertial dust collection groove 150 is wound around the outside of the upper end of the filter net 600. After the fan 400 sucks air from the air inlet 110 into the housing 100, the air blows out along the fan 400 and then flows spirally upward along the inner wall of the housing 100. When the air flows upward to the inertial dust collection groove 150, the larger harmful substance particles in the air collide into the inertial dust collection groove 150 under the action of inertia, so that the larger harmful substance particles are deposited in the inertial dust collection groove 150. After depositing the larger harmful substance particles, the air passes through the filter net 600 from the outside to the inside, so that the smaller harmful substance particles are filtered by the filter net 600.

[0053] Thus, large particles of harmful substances in the air are pre-deposited before the filtration of the filter net 600, preventing large particles of harmful substances from directly blowing onto the filter net 600 and causing blockage or damage to the filter net 600, thereby improving the filtering effect of the filter net 600 and extending the service life of the filter net 600.

[0054] The disinfection mechanism 700 is located below the inertial dust collection tank 150, facilitating the disinfection and sterilization of the deposited harmful substances. In addition, if the user needs to manually clean the inside of the air purifier, only the housing 100 needs to be disassembled and the inertial dust collection tank 150 can be cleaned, which is simple and convenient to operate.

[0055] As Figures 2 to 6 shown, an air inlet cover 200 is provided on the air inlet 110. The air inlet cover 200 is detachably installed on the air inlet 110, and an air inlet grid 210 is provided on the air inlet cover 200. A trigger switch 111 is provided on the air inlet 110, and a trigger member 220 is provided on the air inlet cover 200. When the air inlet cover 200 is detached from the air inlet 110, the trigger member 220 is separated from the trigger switch 111, and the fan 400 stops operating. Thus, the user can clean or repair the inside of the air purifier by detaching the air inlet cover 200. When the user removes the air inlet cover 200, the separation of the trigger member 220 and the trigger switch 111 will cause the fan 400 to stop working, avoiding injury to the user caused by the rotation of the fan 400. The air inlet cover 200 can be installed on the air inlet 110 by common detachable installation methods such as magnetic attraction, facilitating the user to disassemble and assemble. The trigger member 220 is a magnet, and the trigger switch 111 is a magnetic induction switch. It can be imagined that the trigger member 220 and the trigger switch 111 can also be in other common switch forms. A first shock-absorbing washer 230 is provided between the air inlet grid 210 and the air inlet cover 200. By providing the first shock-absorbing washer 230, the vibration of the air inlet grid 210 when air flows through the air inlet grid 210 is reduced, and the impact on the overall device is minimized.

[0056] As Figure 6 shown, the air inlet grid 210 is formed by splicing a plurality of hexagonal slender air ducts 211. That is, the air inlet grid 210 is a mesh structure of an aluminum honeycomb. The aluminum honeycomb structure makes the air inlet grid 210 have both lightness and strength. The air inlet grid 210 is composed of a plurality of slender air ducts 211 arranged in the up and down direction, which can straighten the airflow passing through the air inlet grid 210, eliminate the influence of turbulence, and increase the density of the airflow. The setting of the air inlet grid 210 can prevent foreign objects from entering the housing 100 and causing harm to the fan 400 and the user. A guide plate 160 is directly provided between the air inlet grid 210 and the fan 400, and the guide plate 160 guides the air flowing in from the air inlet grid 210 to the fan 400.

[0057] AsFigures 2 to 6 As shown, the lighting mechanism 500 includes an annular light strip 510, and the annular light strip 510 is arranged downward at the lower end of the housing 100. A second scattering member 520 is covered at the lower end of the annular light strip 510, and the second scattering member 520 is a transparent member. A light condensing portion 130 formed by the downward protrusion of the housing 100 is arranged around the outside of the lighting mechanism 500. The light condensing portion 130 can make the light emitted by the lighting mechanism 500 face the direction set by the user, avoid the user directly looking at the light source during the use of this air purifier, and relieve the eye fatigue of the user.

[0058] The embodiments of the present utility model have been described in detail above with reference to the accompanying drawings. However, the present utility model is not limited to the above embodiments, and various changes can be made without departing from the gist of the present utility model within the scope of knowledge possessed by those of ordinary skill in the art.

Claims

1. The air duct structure of an air purifier, characterized in that, it includes: a housing (100), an air inlet (110) is provided at the lower end of the housing (100), and an air outlet (120) is provided at the upper end of the housing (100); a fan (400), the fan (400) is arranged on one side of the housing (100) close to the air inlet (110); a filter net (600), the filter net (600) is in a circular column shape, the filter net (600) is arranged on one side of the housing (100) close to the air outlet (120), and the air outlet (120) is located inside the filter net (600); an inertial dust collection groove (150) is further arranged in the housing (100), and the inertial dust collection groove (150) is located outside the upper end of the filter net (600).

2. The air duct structure of the air purifier according to claim 1, characterized in that, the inertial dust collection groove (150) is in a ring shape, and the inertial dust collection groove (150) is arranged on the inner wall of the top of the housing (100).

3. The air duct structure of the air purifier according to claim 1, characterized in that, it further includes a flow guide cover (810), the flow guide cover (810) is arranged inside the filter net (600), and the cross-sectional area of the flow guide cover (810) gradually increases from top to bottom.

4. The air duct structure of the air purifier according to claim 1, characterized in that, an air inlet grid (210) is arranged on the air inlet (110).

5. The air duct structure of the air purifier according to claim 1, characterized in that, an air inlet cover plate (200) is detachably installed on the air inlet (110), and an air inlet grid (210) is arranged on the air inlet cover plate (200).

6. The air duct structure of the air purifier according to claim 5, characterized in that, a first damping washer (230) is arranged between the air inlet grid (210) and the air inlet cover plate (200).

7. The air duct structure of the air purifier according to claim 4 or 5, characterized in that, the air inlet grid (210) is formed by splicing a plurality of hexagonal slender air ducts (211).

8. The air duct structure of the air purifier according to claim 4 or 5, characterized in that, a flow guide plate (160) is arranged between the air inlet grid (210) and the fan (400).

9. The air duct structure of the air purifier according to claim 1, characterized in that, it further includes a disinfection mechanism (700), the disinfection mechanism (700) is arranged in the housing (100), and the disinfection mechanism (700) is used for disinfecting the air inside the housing (100).

10. The air duct structure of the air purifier according to claim 9, characterized in that, the disinfection mechanism (700) is located below the inertial dust collector.

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