WO2017076167A1

WO2017076167A1 - Self-cleaning apparatus of air filter

Info

Publication number: WO2017076167A1
Application number: PCT/CN2016/102482
Authority: WO
Inventors: 张贯京
Original assignee: 深圳市前海安测信息技术有限公司
Priority date: 2015-11-07
Filing date: 2016-10-19
Publication date: 2017-05-11
Also published as: CN205174591U

Abstract

A self-cleaning apparatus of an air filter. The air filter comprises left and right filtration units (15). The self-cleaning apparatus comprises several clean air inlets (1), an air sterilizer (30), a fan (7), and a dust bin (12). Each filtration unit (15) consists of a filter grid coil (18) and an air filtering belt (14). The air filtering belt (14) runs through the dust bin (12) to roll between the filter grid coils (18). When the pressure within an air compressor (9) is greater than a preset air pressure, the fan (7) introduces external clean air from the clean air inlets (1) into the air sterilizer (30) to be sterilized thereby, and then blows the sterilized clean air through the air filtering belt (14), thus performing self-cleaning for the filtration units (15).

Description

Self-cleaning device for air filter

Technical field

[0001] The present invention relates to the field of air purification equipment, and more particularly to a self-cleaning device for an air filter.

Background technique

[0002] Currently, fine filter grade air filters are widely used in air filtration of indoors, offices, shops, private cars, and buses. However, one of the obvious shortcomings of these air filters is that they lose the cleaning function after using the filter inside the chamber, because the filter is covered with dust and various organic substances, so it needs to be replaced. filter. Organic substances accumulated in the same filter are prone to breed various microorganisms and harmful bacteria. Therefore, the cleanliness of the filter itself will be particularly important, especially during the use of home life, it is particularly necessary to keep the filter itself clean.

[0003] The main object of the present invention is to provide a self-cleaning device for an air filter, which aims to solve the product defect that the existing air filter cannot self-clean the filter itself.

Problem solution

Technical solution

[0004] In order to achieve the above object, the present invention provides a self-cleaning device for an air filter, the air filter comprising two left and right filter units, the self-cleaning device including a clean air input port, an air sterilizer, a fan and a dust box, each filter unit being composed of a filter grid coil and an air filter belt, the air filter belt passing through the dust box and rolling between the filter grid coils of the left and right filter units, when The air pressure in the air compressor is greater than a preset air pressure 吋, the fan sterilizes the clean air from the clean air inlet into the air sterilizer, and disinfects the cleaned air The clean air self-cleans the filter unit by powerfully blowing the dirt particles passing through the air filter belt in the dust box under the low air pressure in the dust box.

[0005] Preferably, the air filter further includes an air compressor and an air mixer, the air mixer includes a filter motor, a mixer spool, a bracket for the support mixer spool, a motor pulley, and Two air mixing chambers on the left and right.

Preferably, the air compressor is provided with a gas pressure sensor for sensing the air pressure in the air compressor and a compressor motor for driving the air compressor.

[0007] Preferably, the bracket is provided with a gear matched with the motor pulley, and the motor pulley drives the mixer spool on the bracket to move the air of the air compressor through a gear on the bracket. Diverting to the left and right air mixing chambers of the air mixer and respectively introducing the left and right filtering units

[0008] Preferably, each of the left and right air mixing chambers is provided with a mounting slot, and each mounting slot is provided with a filtering unit.

[0009] Preferably, the air sterilizer comprises a disinfectant input port, a disinfecting mixer, a disinfectant container, and a liquid sensor, wherein the disinfectant input port is used for a user to add an air disinfectant to the disinfectant container. The liquid sensor is configured to detect a capacity level of the air disinfectant in the disinfectant container.

[0010] Preferably, the air disinfectant in the disinfectant container sterilizes and cleans the clean air in the disinfection mixer, and the volume of the air disinfectant in the disinfectant container is lower than a preset capacity value. The liquid sensor prompts the user to add the air disinfectant from the disinfectant input port to the disinfectant container.

[0011] Preferably, the fan comprises a fan propeller, a fan motor and an electric heater, and the fan communicates with the sterilizing mixer through an inlet of the fan, and communicates with the dust box through an outlet of the fan.

[0012] Preferably, the fan motor rotates to drive the fan propeller to rotate the air in the disinfection mixer into the electronic heater to heat and disinfect the clean air.

[0013] Preferably, the dust box comprises a dirty air outlet, a detachment prevention belt roller and a belt slot, and the detachment prevention belt roller is fixed at an edge of the dust box for driving the air filter belt next to the dust The belt slot between the box and the fan rolls to pass the air filter belt through the dust box to carry out the beneficial effects of the invention

Beneficial effect

Compared with the prior art, the utility model adopts the above technical solution, and achieves the following beneficial effects: The air filter adopts two filtering units to filter and purify the air, thereby achieving better air. Gas filtration effect. In addition, when the air filter is used for a period of time, the self-cleaning device of the air filter can automatically clean the filter unit, so that the air filter can be kept clean without replacing the filter unit.

Brief description of the drawing

DRAWINGS

1 is a front structural view of a preferred embodiment of the air filter of the present invention;

2 is an internal structural view of a preferred embodiment of the air filter of the present invention;

3 is a rear structural view of a preferred embodiment of the self-cleaning device of the air filter of the present invention;

4 is an internal structural view of a preferred embodiment of the self-cleaning device of the air filter of the present invention.

[0019] OBJECTS OF THE INVENTION, Functional Features, and Advantages of the Invention The present invention will be further described with reference to the accompanying drawings.

BEST MODE FOR CARRYING OUT THE INVENTION

[0020] In order to further illustrate the technical means and functions of the present invention in order to achieve the above object, the specific embodiments, structures, features and functions of the present invention will be described in detail below with reference to the accompanying drawings and preferred embodiments. It is understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

[0021] As shown in FIG. 1, FIG. 1 is a front structural view of a preferred embodiment of the air filter of the present invention. In the present embodiment, the air filter includes, but is not limited to, a dirty air input port 10, an air compressor 9, an air input pipe 29, an air mixer 6, and two filter units 15 (including a left filter unit 15 and Right filter unit 15). The air compressor 9 is driven by the compressor motor 11 so that external air is blown into the air compressor 9 from the dirty air input port 10, and is guided by the air compressor 9 through the air input pipe 29 to the air mixture. In the sixth. One end of the air input duct 29 is in communication with the air compressor 9, and the other end is connected to the inlet of the air mixer 6. The air mixer 6 splits the dirty air of the air input duct 29 into the filtering unit 15 to filter and purify the dirty air.

[0022] In the present embodiment, the air compressor 9 is provided with a gas pressure sensor for the air pressure in the air compressor 9. When one of the filter units 15 (the left filter unit 15 or the right filter unit 15) becomes dirty, the air passing through the filter unit 15 will be reduced to increase the air pressure in the air compressor 9. When the air compressor 9 detects that the air pressure is greater than the preset air pressure 吋, the self-cleaning device is activated to perform a self-cleaning process on the filter unit 15.

2 is a view showing the internal structure of a preferred embodiment of the air filter of the present invention. As described in connection with Fig. 1, the air filter includes a dirty air input port 10, an air compressor 9, an air input pipe 29, an air mixer 6, and a filter unit 15. In the present embodiment, the air mixer 6 includes a filter motor 8, a mixer spool 19, a bracket 20 for supporting the mixer spool 19, a motor pulley 21, and two air mixing chambers 22 (including left air mixing). Cavity and right air mixing chamber 22).

[0024] The filter motor 8 drives the motor pulley 21 to rotate, and the bracket 20 is provided with a gear matched with the motor pulley 21. When the motor pulley 21 rotates, the motor pulley 21 drives the mixer spool 19 on the bracket 20 to move the air entering the air compressor 9 to the air mixer 6 through a gear on the bracket 20. The left and right air are mixed in the cavity 22, so that the air in the air mixer 6 is introduced into the filter unit 15 (left filter unit 15 or right filter unit 15), respectively. A mounting groove 27 is disposed in the air mixing chamber 22, and each of the mounting slots 27 is separately provided with a filtering unit 15. Each filter unit 15 includes a filter inlet 28, a filter grid coil 18, and an air filter belt 14. The air filter belt 14 is a filter belt for adsorbing dirt particles (dust particles or organic particles) in the air, the air filter belt 14 is covered at one end on the left filter grid coil 18, and the other end is covered on the right filter grid coil. 18 on. The air filter belt 14 is capable of filtering and purifying the air entering the filter inlet 28 and flowing out from the corresponding filter grid coil 18 to achieve the effect of filtering and purifying the dirty air.

[0025] When the air filter is activated to perform air purification, dirty air enters the air compressor 9 driven by the motor 11 through the dirty air input pipe 10, and then flows to the left and right by the air mixer 6. The air flow between the filter units 15 is branched, and each filter unit 15 is composed of a filter grid coil 18 and an air filter belt 14, which covers the corresponding area of the filter grid coil 1 according to the difference in thickness of the air filter belt 14 8. By the air filter belt 14 covering the thickness of the filter grid coil 18, the operation of the filter motor 8, or the special shape of the air mixer 6, the nonlinearity of the air flow can be made to flow into the left and right filter unit 15 near the linear characteristic. .

[0026] When the air filter belt 14 rolls and covers the left filter grid coil 18, the air mixer 6 splits the dirty air in the air input duct 29 to the left filter unit 15 for filtering and purification. . Dang The air filter belt 14 is rolled and covered on the right filter grid coil 18, and the air mixer 6 diverts the dirty air in the air input duct 29 to the right filter unit 15 for filtration and purification.

Referring to FIG. 3, FIG. 3 is a rear structural view of a preferred embodiment of the self-cleaning device of the air filter of the present invention. As shown in Fig. 1, the self-cleaning device includes a clean air inlet 1, an air sterilizer 30, a fan 7 and a dust box 12. The fan 7 integrally connects the air sterilizer 30 and the dust box 12 to constitute the self-cleaning device. In the present embodiment, the air passing through the filter unit 15 is reduced as compared with the clean filter unit 15, so that the air pressure in the air compressor 9 is increased. When the air pressure sensor in the air compressor 9 detects that the air pressure in the air compressor 9 is greater than the preset air pressure 吋, the fan 7 automatically starts to activate the self-cleaning process of the self-cleaning device to the filtering unit 15. .

Referring to FIG. 4, FIG. 4 is an internal structural view of a preferred embodiment of the self-cleaning device of the air filter of the present invention. As shown in Fig. 3, the self-cleaning device includes an air clean air inlet 1, an air sterilizer 30, a fan 7, and a dust box 12.

[0029] The air sterilizer 30 includes a disinfectant input port 2, a sterilizing mixer 3, a sterilizing solution container 4, and a liquid sensor 5. The clean air inlet 1 blows external air into the sterilizing mixer 3, and the sterilizing liquid input port 2 is used for a user to add an air sterilizing liquid (for example, medical alcohol or other sterilizing liquid) to the disinfecting liquid. In the container 4. When the air passes through the sterilizing mixer 3, the air sterilizing liquid contained in the sterilizing liquid container 4 sterilizes the air passing through the sterilizing mixer 3. The liquid sensor 5 is used for detecting the capacity level of the air disinfectant in the disinfectant container 4, when the capacity value of the air disinfectant in the disinfectant container 4 is lower than a preset capacity value (for example, less than the disinfectant container 4) A quarter of the total capacity 吋, the liquid sensor 5 prompts the user to add an air disinfectant from the disinfectant input port 2 to ensure the sterilization function of the air.

[0030] The fan 7 includes a fan propeller 23, a fan motor 24, and an electric heater 25. The fan 7 communicates with the sterilizing mixer 3 through a fan inlet and communicates with the dust box 12 through a fan outlet. The fan motor 24 rotates to drive the fan propeller 23 to rotate, and the air in the sterilizing mixer 3 is blown into the electric heater 25 to heat-sterilize the air. The dust box 12 is used to store large particles of dust filtered in the air filter belt 14, while maintaining a low air pressure to strongly blow the particles in the air filter belt 14 with the gas in the air filter belt 14.

[0031] The dust box 12 includes a dirty air outlet 13, a detachment prevention belt roller 17, and a belt slit 26. The anti-off A belt roller 17 is fixed to the edge of the dust box 12 for driving the air filter belt 14 to roll next to the belt slot 26 between the dust box 12 and the fan 7, thereby passing the air filter belt 14 through the dust. The dirt particles are cleaned in the tank 12.

[0032] When the air pressure sensor in the air compressor 9 detects that the air pressure in the air compressor 9 is greater than the preset air pressure 吋, the fan 7 automatically starts to activate the self-cleaning process of the filter unit 15. Thereafter, the fan 7 blows a certain amount of clean air from the clean air inlet 1 into the sterilizing mixer 3, and the air sterilizing liquid contained in the venom container 4 sterilizes the air blasted into the sterilizing mixer 3. disinfection. The propeller 23 in the fan 7 squirts the air in the sterilizing mixer 3 into the electronic heater 25 as the fan motor 24 rotates to heat-sterilize the sterilized air. Since the dust box 12 always maintains a low air pressure, the gas in the fan 7 is strongly blown through the dirt particles on the air filter belt 14 of the dust box 12, and the dirty air is directly removed from the dirty air outlet 13 to reach Self-cleaning effect on the filter unit 15.

The above is only a preferred embodiment of the present invention, and thus does not limit the scope of the patent of the present invention, and the equivalent structure or equivalent function transformation made by using the specification and the contents of the drawing of the present invention, or directly or indirectly In other related technical fields, the same is included in the scope of patent protection of the present invention.

Industrial applicability

Compared with the prior art, the utility model adopts the above technical solutions, and achieves the following beneficial effects: The air filter uses two filtering units to filter and purify the air, thereby achieving better air filtration. effect. In addition, when the air filter is used for a period of time, the air filter self-cleaning device can automatically clean the filter unit, so that the air filter can be kept clean without replacing the filter unit.

Claims

Claim

[Claim 1] A self-cleaning device for an air filter, wherein the air filter includes two left and right filter units, and the self-cleaning device includes a clean air input port, an air sterilizer, a fan, and a dust box. Each filter unit is composed of a filter grid coil and an air filter belt, and the air filter belt passes through the dust box and rolls between the filter grid coils of the left and right filter units, when the air compressor is inside The air pressure is greater than a preset air pressure 吋, the fan blasts external clean air from the clean air inlet into the air sterilizer to sterilize the clean air, and cleans the cleaned air The filter unit is self-cleaned by strong blowing through the dirt particles on the air filter belt in the dust box under the action of low air pressure in the dust box.

[Claim 2] The self-cleaning device of the air filter according to claim 1, wherein the air filter further comprises an air compressor and an air mixer, the air mixer including a filter motor and a mixer A bobbin, a bracket for supporting the mixer spool, a motor pulley, and two left and right air mixing chambers.

[Claim 3] The self-cleaning device of the air filter according to claim 2, wherein the air compressor is provided with a gas pressure sensor for sensing the air pressure in the air compressor, and A compressor motor for driving the air compressor.

[Claim 4] The self-cleaning device of the air filter according to claim 2, wherein the bracket is provided with a gear matched with the motor pulley, and the motor pulley passes through the bracket The gear drives the mixer spool movement on the bracket to divert the air of the air compressor to the left and right air mixing chambers of the air mixer and to the left and right filter units, respectively.

[Claim 5] The self-cleaning device for an air filter according to claim 2, wherein one of the left and right air mixing chambers is provided with a mounting groove, and each of the mounting slots is provided with a filtering unit.

[Claim 6] The self-cleaning device for an air filter according to any one of claims 1 to 5, characterized in that

The air sterilizer includes a disinfectant input port, a disinfecting mixer, a disinfectant container, and a liquid sensor, wherein the disinfectant input port is used for a user to add an air disinfectant to the consumer In the venom container, the liquid sensor is used to detect the capacity level of the air disinfectant in the disinfectant container.

[Claim 7] The self-cleaning device of the air filter according to claim 6, wherein the air disinfectant in the disinfectant container sterilizes and cleans the clean air in the sterilizing mixer. The capacity value of the air disinfectant in the disinfectant container is lower than a preset capacity value 吋, and the liquid sensor prompts the user to add the air disinfectant from the disinfectant input port to the disinfectant container.

[Claim 8] The self-cleaning device of the air filter according to claim 6, wherein the fan includes a fan propeller, a fan motor, and an electric heater, and the fan is mixed with the disinfection through an inlet of the fan Communicating, communicating with the dust box through an outlet of the fan

[Claim 9] The self-cleaning device of the air filter according to claim 8, wherein the fan motor rotates to rotate the fan propeller to blast the air in the sterilizing mixer The clean air is heated and sterilized in the electric heater.

[Claim 10] The self-cleaning device for an air filter according to any one of claims 1 to 5, wherein the dust box includes a dirty air outlet, a detachment prevention belt roller, and a belt slot, and the prevention a stripping roller is fixed on the edge of the dust box for driving the air filter belt to roll along the belt slot between the dust box and the fan, so that the air filter belt passes through the dust box to clean the dirt particles .