CN110657468A - Air purification module and smoke ventilator - Google Patents

Abstract

The invention discloses an air purification module, which comprises a purification shell formed with a purification air duct, an ozone generating device and two activated carbon purification units both arranged in the purification air duct, and the purification air duct is formed with a purification air inlet and a purification outlet. The gas port, the ozone generating device is arranged between two activated carbon purification units, one of which is set close to the purification air inlet, and the other activated carbon purification unit is set close to the purification air outlet. The air purification module of the embodiment of the present invention is provided with two activated carbon purification units, so that the structure of the air purification module is simple, and the effect of removing odor and purifying the air is better. The invention also discloses a range hood.

Description

Air cleaning modules and cooker hoods

technical field

The invention relates to the technical field of smoke exhaust, in particular to an air purification module and a range hood.

Background technique

Ozone is a strong oxidant, which can oxidize and decompose some odorous gases. For example, ozone can oxidize and decompose ammonia gas to obtain water and colorless and odorless nitrogen. Therefore, ozone is used in range hoods to remove harmful substances in the fumes. However, in the related art, the ozone generating device in the range hood has a complicated structure and poor odor removal effect.

SUMMARY OF THE INVENTION

The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention provides an ozone generating device, an air purification module and a range hood.

The air purification module of the embodiment of the present invention includes a purification casing formed with a purification air duct, an ozone generating device and two activated carbon purification units both disposed in the purification air duct. The purifying air duct is formed with a purifying air inlet and a purifying air outlet. The ozone generating device is disposed between the two activated carbon purification units, one of the activated carbon purification units is disposed close to the purification air inlet, and the other activated carbon purification unit is disposed close to the purification air outlet.

The air purification module of the embodiment of the present invention is provided with an activated carbon purification unit, so that the structure of the air purification module is simple, and the effect of removing odor and purifying the air is better.

In some embodiments, each of the activated carbon purification units includes an activated carbon module, and the activated carbon module is formed with a plurality of filter holes communicating with the purified air inlet and the purified air outlet, and the plurality of filter holes are in the form of Array arrangement.

In some embodiments, the activated carbon module is cylindrical, the thickness of the activated carbon module is 38-45mm, the diameter is 145-150mm; and/or the cross-sectional area of each filter hole is 20-30mm ² , and The center-to-center distance of two adjacent filter holes is 5-8mm.

In some embodiments, the decontamination housing includes a cylinder, a lower cover member disposed at a lower end of the cylinder, and an upper cover member disposed at an upper end of the cylinder, the lower cover member including a lower cover plate and a lower mounting ring extending from the lower cover plate in a direction away from the cylinder, the lower cover element is formed with a lower grille structure communicating with the purification air duct, and the lower mounting ring surrounds the lower The grille structure is formed with the purification air inlet, the upper cover element includes an upper cover plate and an upper mounting ring extending from the upper cover plate to a direction away from the cylinder, the upper cover plate is formed with The upper grille structure communicated with the purification air duct, the upper installation ring surrounds the upper grille structure and forms the purification air outlet, wherein one of the activated carbon modules is arranged in the upper installation ring, and the other One of the activated carbon modules is disposed in the lower mounting ring.

In certain embodiments, each of the activated carbon purification units includes a fixed ring in which the activated carbon modules are fixed, wherein one of the activated carbon purification units is fixed in the upper mounting ring by the fixed ring , wherein one of the activated carbon purification units is fixed in the lower installation ring through the fixing ring.

In certain embodiments, the ozone generating device includes a frame and multiple turns of coils wound on the frame, the multiple turns of the coils being spaced apart, wherein at least two turns of the coils are used to apply a working voltage The post-ionized air forms ozone.

In some embodiments, the frame includes two pole plates that are opposite and spaced apart and a plurality of connecting posts that connect the two pole plates and are spaced apart, and the multi-turn coil is wound around the plurality of connections. The columns are arranged at intervals along the axial direction of the connecting column.

In some embodiments, in the arrangement direction of the multi-turn coils, the coils to which a low potential is applied and the coils to which a high potential is applied are alternately distributed, wherein the low potential is 0V, the The high potential is 3000-3500V.

In some embodiments, the air purification module includes a power supply device fixed on the outside of the purification housing, the power supply device is used to supply voltage to the multi-turn coil.

The range hood according to the embodiment of the present invention includes the above-mentioned air purification module and a fan, and the fan is used for sucking gas and discharging the gas to the purification air duct.

The range hood of the embodiment of the present invention utilizes the air purification module and sets two activated carbon purification units, so that the structure of the air purification module is simple, and the effect of removing odor and purifying the air is better.

Additional aspects and advantages of the present invention will be set forth, in part, from the following description, and in part will be apparent from the following description, or may be learned by practice of the invention.

Description of drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from the following description of embodiments taken in conjunction with the accompanying drawings, wherein:

1 is a perspective view of a range hood according to an embodiment of the present invention;

2 is a schematic cross-sectional view of the range hood of FIG. 1 along II-II direction;

3 is an exploded schematic view of an air purification module according to an embodiment of the present invention;

4 is a schematic perspective view of an air purification module according to an embodiment of the present invention;

FIG. 5 is a schematic cross-sectional view of the range hood of FIG. 4 along the V-V direction;

6 is a schematic perspective view of an ozone generator according to an embodiment of the present invention;

7-9 are schematic diagrams of circuits for preparing ozone by an ozone generator according to an embodiment of the present invention;

10 is a schematic diagram of the relationship between the sterilization (natural bacteria) efficiency of the air purification module according to the embodiment of the present invention and the ozone generator;

11 is a schematic diagram of the relationship between the ammonia removal rate of the air purification module and the ozone generator according to the embodiment of the present invention;

12 is a schematic diagram of the relationship between the benzene removal rate and the ozone generator of the air purification module according to the embodiment of the present invention;

13 is a schematic diagram of the relationship between the PM2.5 removal rate of the air purification module according to the embodiment of the present invention and the ozone generator;

14-16 are schematic plan views of an ozone generator according to an embodiment of the present invention;

17 is a schematic perspective view of an activated carbon module according to an embodiment of the present invention;

18 is a schematic plan view of an activated carbon module according to an embodiment of the present invention.

Description of main component symbols:

Range hood 1000, air purification module 100, purification shell 10, cylinder 11, purification air duct 12, purification air inlet 122, purification air outlet 124, upper cover element 14, upper cover plate 141, upper grille structure 1412, Upper mounting ring 144, lower cover element 16, lower cover plate 161, lower grid structure 1612, lower mounting ring 164, ozone generator 20, frame 22, connecting plate 222, connecting post 224, coil 24, high voltage transformer 50, switch 60, button 62, switch cover 70, activated carbon purification unit 80, activated carbon module 802, filter hole 8022, fixing ring 804, fan 200, power socket 300, casing 400, air duct 401, air inlet 402, power supply device 500, Length A, width B, spacing C, thickness D, diameter E, cross-sectional area S, center distance F.

Detailed ways

Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals refer to the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary, only used to explain the present invention, and should not be construed as a limitation of the present invention.

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, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation of the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present invention, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific situations.

In the present invention, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity and not in itself indicative of a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Referring to FIG. 1 and FIG. 2 , a range hood 1000 according to an embodiment of the present invention includes an air purification module 100 and a fan 200 .

Referring to FIGS. 3 , 4 and 5 , the air purification module 100 according to the embodiment of the present invention includes a purification housing 10 formed with a purification air duct 12 , an ozone generator 20 and an activated carbon purification unit 80 disposed in the purification air duct. The purification air duct 12 is formed with a purification air inlet 122 and a purification air outlet 124. The ozone generator 20 and the activated carbon purification unit 80 are arranged at intervals along the direction of the purification air inlet 122 to the purification air outlet 124. The activated carbon purification unit 80 includes an activated carbon module. 802, the activated carbon module 802 is formed with a plurality of filter holes 8022 that communicate with the purification air inlet 122 and the purification air outlet 124, and the plurality of filter holes 8022 are arranged in an array. The blower 200 is used for sucking gas and discharging the gas to the purification air duct 12 .

In the air purification module 100 according to the embodiment of the present invention, the activated carbon purification unit 80 is provided, so that the structure of the air purification module 100 is simple, and the effect of removing odor and purifying the air is better.

Activated carbon is a very fine carbon particle with a large surface area, so activated carbon can fully contact the air. In addition, there are even finer pores in the carbon particles - capillaries. The capillary has a strong adsorption capacity, and the impurities in the air will be adsorbed when they encounter the capillary, so that the air can be purified. The activated carbon adsorption method is widely used, mature in technology, safe and reliable, and absorbs many types of substances. The activated carbon purification unit 80 is arranged in the air purification module 100, which is simple and convenient, and is conducive to further air evolution and odor removal.

The purification housing 10 of the air purification module 100 is substantially in the shape of a square tube. In this way, while making the range hood 1000 more beautiful in appearance, the structure of the range hood 1000 can be made more compact, which is beneficial to the miniaturization of the range hood 1000 . It can be understood that, in other embodiments, the purification housing 10 may have other shapes such as a cylindrical shape, a polygonal cylindrical shape, and the like. Additionally, the purge housing 10 and fan housing may be made of plastic.

Referring to FIG. 6 , the ozone generating device 20 includes a frame 22 and a multi-turn coil 24 wound on the frame 22. The multi-turn coil 24 is arranged at intervals, wherein a working voltage is applied between at least two turns of the coil 24 to ionize the air to form ozone .

The range hood 1000 , the air purification module 100 and the ozone generator 20 according to the embodiment of the present invention ionize the air to form ozone through the coil 24 , so that the ozone generator 20 has a simple structure and can generate enough ozone to remove odor.

It can be understood that ozone is a strong oxidant, which can destroy the cell wall of decomposing bacteria, thereby diffusing into the cell and oxidizing and decomposing glucose oxidase, which is necessary for bacteria to oxidize glucose, and can also directly interact with bacteria and viruses to destroy bacteria. Metabolic and reproductive processes. In addition, ozone can oxidize various odorous inorganic or organic substances. For example, ozone can decompose odorous gases such as ammonia, benzene, and hydrogen sulfide, thereby deodorizing. In a word, ozone sterilization, disinfection and deodorization has a short time and strong effect, and the ozone generating device 20 is used to ionize the air to form ozone to remove peculiar smell, and a good effect can be obtained.

FIG. 7 , FIG. 8 and FIG. 9 are schematic circuit diagrams of the ozone generating device 20 for preparing ozone. The ozone generating device preparing 20 according to the embodiment of the present invention uses the corona discharge method to prepare ozone. Specifically, in the ozone generating device 20, oxygen molecules are excited by electrons to obtain energy, and collide elastically with each other to aggregate into ozone molecules. The chemical equation of the ozone generator 20 ionizing air to form ozone is:

3O ₂ →2O ₃

Please refer to FIG. 10 and Table 1 below. FIG. 10 is a schematic diagram of the relationship between the sterilization (natural bacteria) efficiency of the air purification module according to the embodiment of the present invention and the ozone generating device 20, wherein the horizontal axis is the power of the ozone generating device 20, and the unit is is Watt (W), the vertical axis is the efficiency of sterilization (natural bacteria), and the unit is percentage (%). Table 1 shows the analysis and detection results of the antibacterial (sterilization) function of natural bacteria of the air purification module 100 according to the embodiment of the present invention. The detection test shows that the sterilization (natural bacteria) efficiency of the ozone generating device 20 reaches 92.4% after 24 hours, and the sterilization effect is good.

Table 1

See Figure 11, Figure 12 and Table 2. 11 is a schematic diagram of the relationship between the ammonia removal rate of the air purification module and the ozone generator 20 according to the embodiment of the present invention, wherein the horizontal axis is the power of the ozone generator 20, in watts (W), and the vertical axis is the ammonia removal rate, The unit is percentage (%). 12 is a schematic diagram showing the relationship between the benzene removal rate of the air purification module and the ozone generator according to the embodiment of the present invention, wherein the horizontal axis is the power of the ozone generator 20, in watts (W), and the vertical axis is the benzene removal rate, in units as a percentage (%). Table 2 shows the analysis and detection results of ammonia and benzene of the air purification module 100 according to the embodiment of the present invention. The detection test shows that after 24 hours, the removal rate of ammonia by the air purification module 100 reaches 88.7%, and the removal rate of benzene reaches 97.6%, and the effect is good.

Table 2

Table 3 shows the analysis and detection results of the antibacterial (sterilization) function of Staphylococcus albus 8799 of the air purification module 100 according to the embodiment of the present invention. The detection test shows that after 1 hour, the antibacterial (sterilization) rate of the air purification module 100 against Staphylococcus albus 8799 is about 95%, and the effect is good.

table 3

Please refer to FIG. 13 and Table 4. FIG. 13 is a schematic diagram showing the relationship between the PM2.5 removal rate of the air purification module and the ozone generator 20 according to the embodiment of the present invention.

Among them, the horizontal axis is the power of the ozone generator 20, the unit is watt (W), and the vertical axis is the PM2.5 removal rate, the unit is percentage (%). Table 4 shows the analysis and detection results of PM2.5 by the air purification module 100 according to the embodiment of the present invention. The detection test shows that the PM2.5 removal rate of the ozone generating device 20 reaches 96.3% within 4 hours, and the effect is good.

Table 4

Table 5 shows the analysis and detection results of the air purification module 100 according to the embodiment of the present invention with respect to the amount of PM2.5 clean air. The detection test shows that the clean air volume for PM2.5 of the ozone generating device 20 reaches 15.5 m ³ /h, that is to say, the ozone generating device 20 not only has a good removal rate, but also has a large amount of clean air.

table 5

As can be seen from the above graph, the air purification module 100 according to the embodiment of the present invention has a removal rate of 92.4% for natural bacteria, 96.3% for PM2.5, 88.7% for ammonia, and 92.4% for benzene. The removal rate was 97.6%, and the removal rate for Staphylococcus albicans was about 95%. That is to say, the detection test shows that the air purification module 100 according to the embodiment of the present invention can achieve a removal rate of over 88% for various removal objects, and can achieve a removal rate of about 95% for most of the removal objects, and the effect is good.

In some embodiments, the frame 22 includes two connecting plates 222 and a plurality of connecting posts 224, and the two connecting plates 222 are opposite and spaced apart. A plurality of connecting posts 224 are connected to the two connecting plates 222 and are arranged at intervals. The multi-turn coils 24 are wound on the plurality of connection posts 224 and are arranged at intervals along the axial direction of the connection posts 224 .

In one example, as shown in FIG. 6 , there are four connection posts 224 ; in another example, there are six connection posts 224 ; in yet another example, there are eight connection posts 224 . The number of connecting posts 224 is not limited here.

In some embodiments, both connection plates 222 are insulators. In this way, the two connection plates 222 can shield the electric field generated by the coil, prevent the leakage of the electric field, and improve the safety of the ozone generating device 20 . Specifically, the connection plate 222 may be made of insulating materials such as acrylic. The two connecting plates 222 may be symmetrically distributed with respect to the central axis of the air purification module 100 .

Referring to FIG. 6 , in some embodiments, the cross section of each connecting plate 222 is rectangular, the length A of the connecting plate 222 is 145-150 mm, and the width B is 150-160 mm.

It can be understood that since the purification housing 10 is in the shape of a square cylinder, the connecting plate 222 with a rectangular cross-section can be adapted to the purification housing 10 , thereby making the air purification module 100 more compact, which is beneficial to the miniaturization of the air purification module 100 .

In addition, the length A of the connecting plate 222 can be any value in the range of 145-150 mm, and the width B of the connecting plate 222 can be any value in the range of 150-160 mm.

In one example, the length A of the connecting plate 222 is 145 mm, and the width B is 150 mm; in another example, the length A of the connecting plate 222 is 150 mm, and the width B is 160 mm; in another example, the length of the connecting plate 222 is 160 mm. A is 147mm and width B is 155mm.

In some embodiments, the plurality of connection posts 224 enclose a rectangular space, and the multi-turn coils 24 are evenly spaced along the axial direction of the connection posts 224 . It can be understood that, since the purification shell 10 is in the shape of a square cylinder and the cross section of the connecting plate 222 is rectangular, the cuboid space enclosed by the connecting column 224 can be adapted to the purification shell 10 and the connecting plate 222, thereby making the air purification module 100 more compact, which is beneficial to Miniaturization of the air purification module 100 . In addition, the multi-turn coils 24 are evenly spaced along the axial direction of the connecting column 224, which is beneficial to the appearance and regularity of the product.

Referring to FIG. 14 , in some embodiments, a working voltage is applied between any adjacent two-turn coils 24 , and the distance C between the adjacent two-turn coils is 10-15 mm. That is to say, the distance C between two adjacent turns of coils can take any value between 10-15mm.

In one example, the distance C between two adjacent turns of coils is 10mm; in another example, the distance C between two adjacent turns of coils is 15mm; in yet another example, the distance between two adjacent turns of coils The spacing C between the coils is 12.5 mm.

In one embodiment, in the arrangement direction of the multi-turn coils 24 , the coils 24 to which the low potential is applied and the coils 24 to which the high potential is applied are alternately distributed. Among them, the low potential is 0V, and the high potential is 3000-3500V. For example, in the direction in which the multi-turn coils 24 are arranged, the first turn of the coil 24 has a low potential (eg, 0V), the second turn of the coil 24 has a high potential (eg, 3000V), the third turn of the coil 24 has a low potential... Arranged in order.

Referring to FIG. 15, in another embodiment, the first turn 24 has a low potential (eg, 0V), the second turn 24 has a low potential (eg, 0V), and the third turn 24 has a high potential (eg, 3000V). , the fourth turn 24 has a high potential (eg 3000V), the fifth turn 24 has a low potential (eg 0V), the sixth turn 24 has a low potential (eg 0V) .

Please note that the above attributes such as “first”, “second” and “third” represent the relative positional relationship between the coils 24 to which the potential is applied, rather than the sequence of the coils in all the coils 24 . For example, in one example, the coil 24 has 18 turns in total, the first coil 24 has a low potential (eg 0V), the second coil 24 has a high potential (eg 3000V), and the third turn 24 has a low potential (eg 0V) ). The first turn of the coil 24 in this example is relative to the second turn of the coil 24 and the third turn of the coil 24, which can be the first turn of the 18-turn coil, or the second turn of the 18-turn coil , and also the third turn of the 18-turn coil. In addition, the attributes "first", "second", "third" and so on do not mean that the coils 24 to which the potential is applied are adjacent, and the coils 24 that are not applied to the potential may be spaced therebetween. Furthermore, as shown in FIG. 16, the application of the electric potential of the multi-turn coil 24 may also be irregular.

In some embodiments, the number of turns of the coil 24 is 15-20 turns. That is, the number of turns of the coil 24 can take any value between 15-20 turns. In one example, the number of turns of the coil 24 is 15 turns; in another example, the number of turns of the coil 24 is 20 turns; in yet another example, the number of turns of the coil 24 is 17 turns.

In certain embodiments, the operating voltage is 3000-3500V. As mentioned above, in the case of discharge, oxygen can form ozone, and when the working voltage is 3000-3500V, the efficiency of ozone generation can be higher. In one example, the operating voltage is 3000V; in another example, the operating voltage is 3500V; in yet another example, the operating voltage is 3200V.

17 and 18, in some embodiments, the activated carbon module 802 is cylindrical, the thickness D of the activated carbon module 802 is 38-45mm, and the diameter E is 145-150mm; and/or the cross-sectional area of each filter hole 8022 S is 20-30 mm ² , and the center-to-center distance F of two adjacent filter holes 8022 is 5-8 mm.

Please note, "The thickness D of the activated carbon module 802 is 38-45mm, and the diameter E is 145-150mm; and/or the cross-sectional area S of each filter hole 8022 is 20-30mm ² , and the center distance between two adjacent filter holes 8022 is F is 5-8mm." including three cases:

In the first case, the thickness D of the activated carbon module 802 is 38-45mm, and the diameter E is 145-150mm;

In the second case, the cross-sectional area S of each filter hole 8022 is 20-30mm ² , and the center distance F of two adjacent filter holes 8022 is 5-8mm;

The third case is that the thickness D of the activated carbon module 802 is 38-45mm, the diameter E is 145-150mm, and the cross-sectional area S of each filter hole 8022 is 20-30mm ² , and the center of the two adjacent filter holes 8022 The distance from F is 5-8mm.

In one example, the activated carbon module 802 has a thickness D of 38 mm and a diameter E of 145 mm; in another example, the activated carbon module 802 has a thickness D of 45 mm and a diameter E of 150 mm; in yet another example, the activated carbon module 802 has a thickness D of 41 mm , the diameter E is 147mm.

In one example, the cross-sectional area S of each filter hole 8022 is 20mm ² , and the center-to-center distance F of two adjacent filter holes 8022 is 5mm; in another example, the cross-sectional area S of each filter hole 8022 is 30mm ² , the center distance F of two adjacent filter holes 8022 is 8mm; in another example, the cross-sectional area S of each filter hole 8022 is 25mm ² , and the center distance F of two adjacent filter holes 8022 is 6.5mm .

In certain embodiments, the purification enclosure 10 includes a barrel 11 , an upper cover member 14 disposed at an upper end of the barrel 11 , and a lower cover member 16 disposed at a lower end of the barrel 11 . The upper cover element 14 is used for connecting components in the cooker hood 1000 downstream of the air cleaning module 100 , and the lower cover element 16 is used for connecting components in the cooker hood 1000 upstream of the air cleaning module 100 .

Note that "upstream" and "downstream" here relate to the flow direction of the air in the cooker hood 1000 . Generally speaking, the air in the range hood 1000 generally flows from bottom to top. Therefore, the upstream components are located below the air purification module 100 in space, and the downstream components are located above the air purification module 100 in space.

Please refer to FIGS. 2 and 3 , the upper cover element 14 includes an upper cover plate 141 and an upper mounting ring 144 extending from the upper cover plate 141 in a direction away from the cylinder 11 . The upper grill structure 1412 and the upper mounting ring 144 surround the upper grill structure 1412 and are formed with a purification air outlet 124 , and the activated carbon purification unit 80 is arranged in the upper mounting ring 144 . The lower cover element 16 includes a lower cover plate 161 and a lower installation ring 164 extending from the lower cover plate 161 to a direction away from the cylinder 11 , the lower cover plate 161 is formed with a lower grid structure 1612 , and the lower installation ring 164 surrounds the lower grid structure 1612 and formed with a purge air outlet 124.

The upper mounting ring 144 is used to connect the air cleaning module 100 with components downstream of the air cleaning module 100 . The lower grille structure 1612 is used to filter the excessively large oil fume particles, so as to prevent the excessive oil fume particles from entering the air purification module 100 and affecting the service life of the air purification module 100 .

Even, the lower grille structure 1612 can cooperate with the fan 200 to divide some oil fume particles into smaller sizes, thereby improving the purification efficiency of the air purification module 100 . The lower mounting ring 164 is used to connect the air cleaning module 100 with components upstream of the air cleaning module 100 .

Specifically, the upper cover element 14 is used for connecting components such as the exhaust pipe of the range hood 1000 , and the lower cover element 16 is used for connecting the air purification module 100 and the body of the range hood 1000 .

Furthermore, the activated carbon purification unit 80 includes a fixed ring 804 , the activated carbon module 802 is fixed in the fixed ring 804 , and the activated carbon purification unit 80 is fixed in the upper installation ring 144 through the fixed ring 804 . In this way, fixing of the activated carbon purification unit 80 is realized.

In some embodiments, the air purification module 100 includes a high voltage transformer 50 for converting the rms value of 220V, a standard voltage most commonly used by residents, into a high voltage for the air purification module 100 to use. For example, the high-voltage transformer 50 can achieve the purpose of boosting voltage by changing the turns ratio of the inductor coil.

In certain embodiments, the air cleaning module 100 includes a power supply unit 500 secured to the outside of the cleaning housing 10 for supplying voltage to the multi-turn coil 24 .

In some embodiments, the power supply device 500 includes a switch 60 and a switch box cover 70 from which the button 62 of the switch 60 is exposed. The user can control the opening and closing of the air purification module 100 through the button 62 of the switch 60 . The switch box cover 70 encapsulates most of the switch 60 and only exposes the button 62 , which is beneficial to the neatness and appearance of the air purification module 100 .

In some embodiments, the switch 60 can adjust the power of the air purification module 100. The user can select a lower power when the oil fume is small, and select a higher power when the oil fume is large, so that the user can easily control the air Purification module 100.

In some embodiments, the main switch of the cooker hood 1000 and the switch 60 of the air purification module 100 are arranged together, which is convenient for the user to use.

In some embodiments, the main switch of the range hood 1000 can adjust the power of the range hood 1000. The user can select a lower power when the range hood is small, and select a higher power when the range hood is high, and so on. The range hood 1000 can be conveniently controlled by the user.

In some embodiments, the power supply device 500 includes a power socket 300 for connecting the range hood 1000 to a household circuit, thereby energizing the range hood 1000 .

Generally, the fan 200 is arranged in the air duct 401 of the housing 400 of the range hood 1000, and is closer to the cooktop than the air purification module 100. The cooker hood 1000 is provided with an air inlet 402, and the cooker hood 1000 is installed on the cooktop. Above, when the user cooks on the stove, the range hood 1000 can be turned on to make the fan 200 run. During the operation of the fan 200, the oil fume generated during the cooking process can be sucked into the air duct 401 of the range hood 1000 through the air inlet 402, and then the oil fume is discharged to the air purification duct 12 of the air purification module 100, so that the air purification module 100 to purify and discharge the purified air. In addition, the fan 200 can also divide the oil fume particles into smaller sizes, so that the oil fume particles can be more easily handled in the air purification module 100 .

In order to improve the life of the range hood 1000 , a filter screen may be provided at the air inlet 402 . The filter screen can filter the oil fume with larger particles, so as to prevent the oil fume with larger particles from directly entering the range hood 1000 and affecting the normal operation of the range hood 1000 .

In some embodiments, the number of activated carbon purification units 80 is two, the two activated carbon purification units 80 are both arranged in the purification air duct 12, the ozone generating device 20 is arranged between the two activated carbon purification units 80, one of which is activated carbon The purification unit 80 is disposed close to the purification air inlet 122 , and another activated carbon purification unit 80 is disposed close to the purification air outlet 124 .

One of the activated carbon modules 802 is disposed in the upper mounting ring 144 , and the other activated carbon module 802 is disposed in the lower mounting ring 164 .

Further, each activated carbon purification unit 80 includes a fixed ring 804, and the activated carbon module 802 is fixed in the fixed ring 804, one of the activated carbon purification units 80 is fixed in the upper installation ring 144 by the fixed ring 804, and one of the activated carbon purification units 80 is fixed by the fixed ring 804. Ring 804 is secured in lower mounting ring 164 .

To sum up, the embodiment of the present invention provides an air purification module 100, which includes a purification housing 10 formed with a purification air duct 12, an ozone generator 20 and two activated carbon purification units 80 both disposed in the purification air duct 12, The purification air duct 12 is formed with a purification air inlet 122 and a purification air outlet 124. The ozone generating device 20 is arranged between two activated carbon purification units 80, wherein one activated carbon purification unit 80 is arranged close to the purification air inlet 122, and the other activated carbon purification unit The unit 80 is positioned adjacent to the purge air outlet 124 .

The air purification module 100 according to the embodiment of the present invention is provided with two activated carbon purification units 80, so that the structure of the air purification module 100 is simple, and the effect of removing odor and purifying the air is better. It can be understood that the activated carbon purification unit 80 disposed near the purification air inlet 122 purifies the air in advance when the air enters the air purification module 100 , which is beneficial to reduce the subsequent purification pressure of the air purification module 100 . The activated carbon purification unit 80 disposed near the purification air outlet 124 continues to purify the air when the air is discharged from the air purification module 100 , which is beneficial to further purify the air discharged from the air purification module 100 .

In the description of this specification, reference to the terms "one embodiment," "some embodiments," "exemplary embodiment," "example," "specific example," or "some examples", etc. A particular feature, structure, material, or characteristic described in this embodiment or example is included in at least one embodiment or example of the present invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

Although embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, The scope of the invention is defined by the claims and their equivalents.

Claims (10)

1. An air purification module, comprising:

a purification housing formed with a purification air duct formed with a purification air inlet and a purification air outlet;

all set up purify ozone generating device and two active carbon purification unit in the wind channel, ozone generating device sets up between two active carbon purification unit, one of them active carbon purification unit is close to purify the air inlet setting, another active carbon purification unit is close to purify the air outlet setting.

2. The air purification module of claim 1, wherein each of the activated carbon purification units comprises an activated carbon module formed with a plurality of filter holes communicating the purification air inlet and the purification air outlet, the plurality of filter holes being arranged in an array.

3. The air purification module of claim 2, wherein the activated carbon module is cylindrical, and has a thickness of 38-45mm and a diameter of 145-150 mm; and/or

The cross section area of each filter hole is 20-30mm²And the center distance between two adjacent filtering holes is 5-8 mm.

4. The air purification module of claim 2, wherein the purification housing comprises:

a barrel;

the lower cover element is arranged at the lower end of the cylinder and comprises a lower cover plate and a lower mounting ring extending from the lower cover plate to the direction far away from the cylinder, a lower grid structure communicated with the purification air channel is formed on the lower cover element, and the lower mounting ring surrounds the lower grid structure and is provided with the purification air inlet; and

the setting is in the upper cover component of the upper end of barrel, upper cover component includes the upper cover plate and certainly the upper cover plate is to keeping away from the last collar that the direction of barrel extends, the upper cover plate be formed with purify the last grid structure of wind channel intercommunication, go up the collar and surround go up the grid structure and be formed with purify the gas outlet, one of them the active carbon module setting is in going up the collar, another one the active carbon module setting is in the collar down.

5. The air purification module of claim 4, wherein each of the activated carbon purification units comprises a fixing ring in which the activated carbon module is fixed, wherein one of the activated carbon purification units is fixed in the upper mounting ring by the fixing ring, and wherein one of the activated carbon purification units is fixed in the lower mounting ring by the fixing ring.

6. The air purification module of claim 1, wherein the ozone generating device comprises:

a frame; and

the multi-turn ozone generator comprises a plurality of turns of coils wound on the frame, wherein the plurality of turns of coils are arranged at intervals, and at least two turns of coils are used for ionizing air to form ozone after working voltage is applied.

7. The air purification module of claim 6, wherein the frame comprises:

two polar plates which are arranged oppositely and at intervals; and

the connecting columns are connected with the two polar plates and are arranged at intervals, and the multiple turns of coils are wound on the connecting columns and are arranged at intervals along the axial direction of the connecting columns.

8. The air purification module of claim 6, wherein in the arrangement direction of the multi-turn coils, the coils applied with low potential and the coils applied with high potential are alternately distributed, wherein the low potential is 0V, and the high potential is 3000-3500V.

9. The air purification module of claim 6, comprising a power supply device secured outside the purification housing for providing a voltage to the multi-turn coil.

10. A range hood, comprising:

the air purification module of any one of claims 1-9; and

a fan for drawing gas and discharging the gas to the purge air duct.

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