CN110906409A - Filtering component and oil smoke purifier - Google Patents

Abstract

The invention discloses a filter assembly and an oil fume purification device, wherein the filter assembly comprises: an outer filter assembly comprising an outer filter cartridge having a plurality of outer filter apertures; an inner filter assembly disposed within the outer filter cartridge, the inner filter assembly including an inner filter cartridge extending along a length of the outer filter cartridge, the inner filter cartridge having a plurality of inner filter pores; and a plurality of wind-shielding blades arranged in the outer filter cylinder and extending along the length direction of the outer filter cylinder, and the wind-shielding blades are arranged along the circumferential direction of the outer filter cylinder. The technical scheme of the invention can improve the separation effect on the grease.

Description

Filtering component and oil smoke purifier

Technical Field

The invention relates to the field of kitchen appliances, in particular to a filtering component and an oil fume purifying device.

Background

In order to separate grease in the oil smoke, the filter screen that generally adopts the flat form in present oil smoke purifier filters the oil smoke, generally, in order to promote the grease separation degree, some filter screen models adopt the form increase filter screen surface area of positive awl or back taper to promote the filter effect. However, such flat screens still have poor contact with grease, and therefore do not completely separate grease.

Disclosure of Invention

The invention mainly aims to provide a filter assembly, aiming at improving the separation effect of grease.

To achieve the above object, the present invention provides a filter assembly comprising:

an outer filter assembly comprising an outer filter cartridge having a plurality of outer filter apertures;

an inner filter assembly disposed within the outer filter cartridge, the inner filter assembly including an inner filter cartridge extending along a length of the outer filter cartridge, the inner filter cartridge having a plurality of inner filter pores; and the number of the first and second groups,

a plurality of blades that keep out the wind set up in the outer cartridge filter to follow the length direction of outer cartridge filter extends, and is a plurality of the blades that keep out the wind are followed the circumference of outer cartridge filter is arranged.

According to the invention, the oil fume can be filtered by the outer filter cartridge and then filtered by the inner filter cartridge, and the oil fume is filtered for multiple times, so that the oil fume can be ensured to be fully contacted and condensed with the filter assembly, and the filtering effect of the oil fume is effectively improved. The arrangement of the inner filter cylinder and the outer filter cylinder forms double or more heavy rotary filter screens, and the double or more heavy rotary filter screens can be contacted with oil smoke for many times to condense more oil smoke.

Optionally, the outer filter cartridge and the inner filter cartridge are spaced apart from each other to form an annular gap, and the plurality of wind-blocking blades include a plurality of outer wind-blocking blades disposed in the annular gap; and/or the presence of a gas in the gas,

the plurality of wind-shielding blades further comprises a plurality of inner wind-shielding blades arranged in the inner filter cylinder.

All set up the blade of keeping out the wind through inside and outside cartridge filter, can increase the active area of air current, improve filtering component's motive force for filtering component smoothly rotates more.

Optionally, the outer wind blades are connected with the outer filter assembly; the inner wind-shield blade is connected with the inner filter assembly.

So outer wind blade can regard as outer filter assembly's the part that receives wind, and interior wind blade can regard as interior filter assembly's the part that receives wind, and both carry out independent rotation.

Optionally, both ends of the inner filter assembly in the length direction are respectively rotatably connected with the outer filter assembly.

The inner filtering component and the outer filtering component can independently rotate, the rotating speeds of the inner filtering component and the outer filtering component are different, the filtering condition of the oil smoke is different, and a superimposed filtering effect can be achieved on the oil smoke.

Optionally, the outer filter assembly further includes two outer support discs located in the outer filter cartridge, the two outer support discs are respectively disposed at two ends of the inner filter assembly, and two ends of the outer wind blocking blades are correspondingly connected to the two outer support discs; and/or the presence of a gas in the gas,

the inner filter assembly further comprises two inner supporting disks positioned in the inner filter cartridge, and two ends of the inner wind-shielding blades are correspondingly connected with the two inner supporting disks.

When the outer/inner wind-blocking blades need to be cleaned, the whole outer/inner supporting disc can be taken out, and the individual outer/inner wind-blocking blades do not need to be detached separately for cleaning.

So the oil smoke filters the back through outer big outer filtration pore of crossing, and embedded cartridge filter can use the more close filter screen of mesh to carry out the secondary filter, thereby can avoid the too big filter screen that blocks up the mesh of oil smoke.

The outer filter assembly also comprises two outer connecting discs, the two outer connecting discs are correspondingly abutted against two end faces of the outer filter cartridge, and the outer supporting discs are detachably connected with the adjacent outer connecting discs;

interior filtering component still includes two in-connection dishes, two the in-connection dish corresponds the butt two terminal surfaces of interior cartridge filter, interior supporting disk and adjacent in-connection dish can dismantle the connection.

The outer/inner connecting disc and the outer/inner supporting disc are detachably connected so as to be convenient for dismounting and mounting the outer/inner connecting disc and the outer/inner supporting disc.

Optionally, the outer wind-shield blades have inner and outer edges distributed across their width, the inner edges being curved towards the axis of the inner filter cartridge.

Thereby directing the incoming air flow from the exterior into the interior filter cartridge and causing the air flow to enter the interior filter cartridge.

Optionally, a plurality of inner filter cartridges are arranged in the outer filter cartridge, and the inner filter cartridges are arranged along the length direction of the outer filter cartridge; or,

the inner filter cartridges are sleeved at intervals inside and outside; or,

the inner filter cartridges are arranged at intervals along the circumferential direction of the outer filter cartridges.

By dividing a longer inner filter cartridge into several shorter inner filter cartridges, the rotation of a single inner filter cartridge is facilitated in embodiments where each inner filter cartridge is independently rotated due to its relatively light weight. Through establishing a plurality of interior cartridge filter endotheca, can realize more heavily filtering, effectively promote the filter effect. A plurality of interior filter cartridge is followed the circumference interval of outer filter cartridge arranges, so a plurality of interior filter cartridge combinations form similar great filter cartridge structure, and the filter range is bigger.

The invention also provides an oil fume purification device, which is a range hood or an integrated stove; the oil smoke purifier includes:

the shell is provided with a smoke suction port, a smoke exhaust port and an air duct, and the air duct is provided with an air inlet section connected with the smoke suction port and an air outlet section connected with the smoke exhaust port;

the fan is arranged at the air outlet section; and the number of the first and second groups,

the filter component is rotatably arranged on the air inlet section.

Because filtering component sets up in the air inlet section, so can filter the flue gas before the flue gas enters into the fan, consequently can reduce the probability that the fan is polluted by the oil smoke.

Optionally, the filter assembly extends along the length of the smoking port, the axis of rotation of the filter assembly being along the length thereof.

The oil smoke on the left and right sides of the lower smoke suction port can be filtered by the filtering component.

Optionally, the lampblack purification device is a range hood;

the shell comprises a back plate, a side suction panel and a top suction panel, the back plate extends along the vertical direction, the side suction panel is arranged opposite to the back plate, the top suction panel extends along the front-back direction, and the rear end of the top suction panel is connected with the upper end of the side suction panel;

the smoking mouth has set up the lower smoking mouth of side suction panel with set up the last smoking mouth of top suction panel, filter assembly sets up the side suction panel with between the backplate, and be located the top of lower smoking mouth, filter assembly follows the length direction of lower smoking mouth extends.

The cavity that extends along left right direction that this department formed does benefit to about filtering component and extends, and both match more in the shape, consequently can better adapt to filtering component's setting to guarantee filtering component as far as possible and separate the wind channel for upper and lower two parts, the gaseous process of significantly reducing is not filtered through filtering component and is run to the fan promptly.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

FIG. 1 is a schematic structural diagram of a lampblack purification device of the invention;

FIG. 2 is an exploded view of the fume cleaning device of FIG. 1;

FIG. 3 is a schematic sectional view of the fume purifier shown in FIG. 1 taken along section A-A;

FIG. 4 is an enlarged schematic view at B of FIG. 3;

FIG. 5 is a schematic view of the filter assembly of FIG. 2;

FIG. 6 is a partially exploded schematic view of the filter assembly of FIG. 5;

FIG. 7 is an exploded view of the outer filter assembly of FIG. 5;

FIG. 8 is a schematic structural view of the outer wind-shielding blade of FIG. 7;

fig. 9 is a schematic structural view of the outer support plate of fig. 7;

FIG. 10 is a schematic view of the construction of the inner filter assembly of FIG. 5;

FIG. 11 is an exploded view of the inner filter assembly of FIG. 10;

FIG. 12 is a schematic structural view of the inner wind shield blade of FIG. 11;

FIG. 13 is a schematic view of the inner support disk of FIG. 11;

FIG. 14 is a schematic view of the inner flange of FIG. 11;

FIG. 15-A is a schematic view of one embodiment of the inner and outer filter cartridges of the filter assembly of the present invention;

FIG. 15-B is a schematic view of another embodiment of the arrangement of the inner and outer filter cartridges of the filter assembly of the present invention;

fig. 15-C is a schematic view of another embodiment of the arrangement of the inner and outer filter cartridges of the filter assembly of the present invention.

The reference numbers illustrate:

the implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that, if directional indications (such as up, down, left, right, front, and back … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative positional relationship between the components, the movement situation, and the like in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description of "first", "second", etc. in an embodiment of the present invention, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the meaning of "and/or" appearing throughout is to include three juxtapositions, exemplified by "A and/or B," including either the A or B arrangement, or both A and B satisfied arrangement. In addition, technical solutions between various embodiments may be combined with each other, but must be realized by a person skilled in the art, and when the technical solutions are contradictory or cannot be realized, such a combination should not be considered to exist, and is not within the protection scope of the present invention.

The invention provides a filter assembly.

In an embodiment of the present invention, referring to fig. 3 to 5 in combination, the filter assembly 10 includes:

an outer filter assembly including an outer filter cartridge 11, the outer filter cartridge 11 having a plurality of outer filter holes 111;

an inner filter assembly disposed inside the outer filter cartridge 11, the inner filter assembly including an inner filter cartridge 15 extending along a length of the outer filter cartridge 11, the inner filter cartridge 15 having a plurality of inner filter holes 151; and the number of the first and second groups,

and a plurality of wind-shielding blades (21 and/or 22) arranged in the outer filter cartridge 11 and extending along the length direction of the outer filter cartridge 11, wherein the plurality of wind-shielding blades (21 and/or 22) are arranged along the circumferential direction of the outer filter cartridge 11.

In this embodiment, the outer filter cartridge 11 and the inner filter cartridge 15 are both substantially in the shape of a circular cylinder, and are sleeved with each other. A wind-deflector (21 and/or 22) may be provided between the outer filter cartridge 11 and the inner filter cartridge 15, or the wind-deflector (21 and/or 22) may be provided inside the inner filter cartridge 15. Specifically, the wind shielding blade (21 and/or 22) may be connected to the peripheral wall of the outer filter cartridge 11, or an end face of the outer filter cartridge 11 may be provided with an end cap to which the wind shielding blade (21 and/or 22) is connected. In addition, in other embodiments, a wind-deflecting blade (21 and/or 22) may be connected to the inner filter cartridge 15. The wind-deflecting blade (21 and/or 22) is formed in a substantially elongated plate-like structure having a small thickness to have a light weight, thereby facilitating the rotation. The wind deflector blades (21 and/or 22) act as a force member for the air flow which acts directly on the wind deflector blades (21 and/or 22) and thus pushes the entire filter assembly 10 into rotation.

In the invention, the wind-shielding blade (21 and/or 22) is arranged to provide a stressed acting surface for the airflow, so that the airflow flowing in through the outer filtering hole 111 on the outer filtering cylinder 11 acts on the wind-shielding blade (21 and/or 22), and after the airflow is blocked by the surface of the wind-shielding blade (21 and/or 22), the airflow pushes the wind-shielding blade (21 and/or 22) to rotate, thereby driving the whole filtering assembly 10 to rotate. The air flow then flows along the surface of the wind-shielding blade (21 and/or 22) and flows out of the outer filter cartridge 11 through the outer filter holes 111. During the process that the airflow pushes the wind shielding blades (21 and/or 22) and flows through the outer filter holes 111, the filter assembly 10 rotates to continuously collide the airflow, so that particulate matters such as grease and the like in the airflow are intercepted by the wind shielding blades (21 and/or 22), the outer filter cylinder 11 and the inner filter cylinder 15, and the collision process can fully filter the airflow, enhance the filtering effect and reduce the probability of the fan 50 being polluted by oil smoke.

In addition, outer filter cartridge 11 parcel keep out the wind blade (21 and/or 22) in this scheme, and the air current hits outer filter cartridge 11 earlier and contacts keep out the wind blade (21 and/or 22) when outer filter cartridge 11 flows to make outer filter cartridge 11 free rotation. The outer filter cartridge 11 is favorable to the oil on the outer filter cartridge 11 to throw out and not blockked by other parts in the outside, and outer filter cartridge 11 enables the surface area increase in the outside in addition, increases the collision probability with the oil smoke. The outer surface of the outer filter cartridge 11 is integrally in a cylindrical shape, so that the appearance is more integral, and the user can conveniently unpick and wash the outer filter cartridge.

In the invention, the oil smoke can be filtered by the outer filter cartridge 11 and then filtered by the inner filter cartridge 15, and the oil smoke is filtered for a plurality of times, so that the oil smoke can be ensured to be fully contacted and condensed with the filter component 10, and the filtering effect of the oil smoke is effectively improved. The inner filter cartridge 15 and the outer filter cartridge 11 are arranged to form a double or more rotary filter net, which can contact with the oil smoke many times to condense more oil smoke.

In one embodiment, the outer filter cartridge 11 and the inner filter cartridge 15 are spaced apart to form an annular gap, and the plurality of wind-blocking blades includes a plurality of outer wind-blocking blades 21 disposed in the annular gap; and/or the presence of a gas in the gas,

the plurality of wind-deflecting blades further comprises a plurality of inner wind-deflecting blades 22 arranged in the inner filter cartridge 15.

Specifically, a plurality of outer wind-blocking blades 21 are provided in an annular gap between the outer filter cartridge 11 and the inner filter cartridge 15, the plurality of outer wind-blocking blades 21 are arranged in a circumferential direction of the annular gap, and the outer wind-blocking blades 21 extend in a length direction of the outer filter cartridge 11. A plurality of inner wind-blocking blades 22 are arranged in the inner filter cartridge 15, the inner wind-blocking blades 22 are arranged along the circumferential direction of the inner filter cartridge 15, and the inner wind-blocking blades 22 extend along the length direction of the inner filter cartridge 15.

Through all setting up the blade of keeping out the wind inside and outside cartridge filter 15, can increase the active area of air current, improve the driving force of filtering component 10 for filtering component 10 more adds smooth and easy rotation.

In one embodiment, the outer wind-shield blades 21 are connected to the outer filter assembly; the inner wind blades 22 are connected to the inner filter assembly. In this way, the outer wind-blocking blades 21 can be used as the wind-receiving part of the outer filter assembly, and the inner wind-blocking blades 22 can be used as the wind-receiving part of the inner filter assembly, and the two wind-blocking blades rotate independently.

Optionally, both ends of the inner filter assembly along the length direction are respectively and rotatably connected with the outer filter assembly, so that the inner filter assembly and the outer filter assembly are respectively and independently rotated. In other embodiments, the inner and outer filter assemblies are each rotatably coupled to the housing 40. Specifically, inlay a little interior filter assembly at the inside cover of outer filter assembly, two sets of filter assembly 10 are independent each other, and when the air current was through filter assembly 10, the air current flowed through outer wind blade 21 of flowing through behind the outer big outer cartridge filter 11 of skin, and outer wind blade 21 is as outer filter assembly's air current effect part to drive whole outer filter assembly and rotate under the promotion of air current. Then, the air current flows along the face of outer wind-break blade 21 to enter the interior filter assembly, and the air current flows through interior cartridge filter 15 earlier, and then acts on interior wind-break blade 22, and interior wind-break blade 22 is as the air current effect part of interior filter assembly to drive whole interior filter assembly rotation under the promotion of air current. Because both sizes and weight homoenergetic of interior filtering component and outer filtering component are different to the air pressure when two filtering component 10 of flowing through is also different, consequently the air current is inequality to the internal driving force of blade 22 and outer blade 21 that keeps out the wind, so interior filtering component is also different with outer filtering component's rotation speed, and is different to the filtering condition of oil smoke, can play a superimposed filter effect to the oil smoke.

In other embodiments, only the outer wind-shielding blades 21 or only the inner wind-shielding blades 22 may be provided. In addition, the outer filtering component and the inner filtering component can be fixed with each other and can synchronously rotate.

In one embodiment, the outer wind blades 21 have inner and outer edges distributed across their width, the inner edges being curved towards the axis of the inner filter cartridge 15. Alternatively, the width of the outer wind-blocking blades 21 extends substantially in the radial direction of the inner filter cartridge 15, and at least the portion of the outer wind-blocking blades 21 near the inner edge extends substantially in the radial direction of the inner filter cartridge 15, so that the air flow entering from the outside is guided toward the inside of the inner filter cartridge 15, enters the inner filter cartridge 15, and then pushes the inner wind-blocking blades 22 to rotate the built-in small inner filter assembly by itself. In this embodiment, the inner rim refers to the side adjacent the inner filter cartridge and the outer rim refers to the side adjacent the outer filter cartridge.

In one embodiment, the outer filter holes 111 have a larger diameter than the inner filter holes 151. So the oil smoke filters the back through outer big outer filtration pore 111 of crossing, and embedded cartridge filter 15 can use the more close filter screen of mesh to carry out the secondary filter, thereby can avoid the too big filter screen that blocks up the mesh of oil smoke.

In the embodiment of the present invention, a plurality of inner filter cartridges 15 are disposed in the outer filter cartridge 11 to enhance the filtering effect. The arrangement of the plurality of inner filter cartridges 15 in the outer filter cartridge 11 has various forms, which will be described below by way of simple example, but is not limited thereto.

Referring to fig. 15-a, in one embodiment, a plurality of the inner filter cartridges 15 are arranged along the length direction of the outer filter cartridge 11. In this embodiment, two adjacent inner filter cartridges 15 can be connected to each other to achieve synchronous rotation. Of course, in other embodiments, each inner filter cartridge 15 may be independently rotatably coupled to the outer filter assembly for independent rotation. For example, a plurality of mounting bars may be provided at intervals along the length direction of the outer filter cartridge 11, and the inner filter cartridge 15 is rotatably connected to the adjacent mounting bars. By dividing a longer inner filter cartridge 15 into several sections of shorter inner filter cartridges 15, in embodiments where each section of inner filter cartridge 15 is rotated independently, the rotation of a single section of inner filter cartridge 15 is facilitated due to its relatively light weight. In addition, the shorter inner filter cartridge 15 facilitates processing.

Referring to fig. 15-B, in an embodiment, a plurality of the inner filter cartridges 15 are sleeved at intervals between the inner and outer sides. Specifically, the plurality of inner filter cartridges 15 are coaxially arranged and are sequentially arranged inside and outside at intervals. It is contemplated that in this embodiment, the diameter of each of the inner filter cartridges 15 is different, and the diameter of the outer inner filter cartridge 15 is greater than the diameter of the inner filter cartridge 15. Through establishing a plurality of interior cartridge filter 15 endotheca, can realize more heavily filtering, effectively promote the filter effect.

Referring to fig. 15-C, in an embodiment, a plurality of the inner filter cartridges 15 are arranged at intervals along the circumference of the outer filter cartridge 11, so that the combination of the plurality of inner filter cartridges 15 forms a larger filter cartridge structure, and the filtering range is larger. Of course, in other embodiments, a plurality of inner filter cartridges 15 may be arranged in parallel and arranged in an unordered manner within the outer filter cartridge 11, or arranged to form a structure like a rectangle, a triangle, etc.

Referring to fig. 6 and 7, in an embodiment, the outer filter assembly further includes at least two outer support discs 12 located inside the outer filter cartridge 11 and oppositely disposed, the two outer support discs 12 are respectively disposed at two ends of the inner filter assembly, and two ends of the outer wind blocking blades 21 are correspondingly connected to the two outer support discs 12. The outer wind-blocking blades 21 are mounted on the outer supporting disc 12, and when the outer wind-blocking blades 21 need to be cleaned, the whole outer supporting disc 12 can be taken out, so that the outer wind-blocking blades 21 do not need to be detached individually for cleaning.

Referring to fig. 8 and 9, the outer wind-blocking blades 21 of the embodiment of the present invention are detachably connected to the outer support plate 12. Optionally, the outer support disc 12 is provided with a first insertion hole 121 for inserting the outer wind-blocking blade 21. The adoption of the plugging mode is beneficial to the disassembly and assembly of the outer wind-shield blade 21. In other embodiments, the outer wind-blocking blades 21 may also be connected to the outer support disc 12 by screws, or the outer wind-blocking blades 21 may also be fastened to the outer support disc 12 by a snap structure, etc.

Specifically, a first insertion notch 122 communicating with the first insertion hole 121 is formed on the circumferential surface of the outer support disc 12; outer wind-break blade 21 has outer blade body 211 and connects the first spacing turn-ups 212 of outer blade body 211 tip, and outer blade body 211 extends along outer cartridge filter 11 length direction to insert the jack from first grafting breach 122, first spacing turn-ups 212 butt outer support disc 12 deviates from the surface of outer blade body 211 to the axial motion of outer wind-break blade 21 along outer support disc 12 is restricted.

In an embodiment, the outer filter assembly further includes two outer connection discs 13, and the two outer connection discs 13 correspondingly abut against two end faces of the outer filter cartridge 11 to limit the outer filter cartridge 11 from moving in the axial direction. In this embodiment, the outer support disc 12 is detachably connected to the adjacent outer connecting disc 13, that is, the outer support disc 12 is also disposed near the end of the outer filter cartridge 11, and the outer support disc 12 is disposed inside the outer filter cartridge 11, the outer support disc 12 can be spaced from the peripheral wall of the outer filter cartridge 11, so as to facilitate the taking out of the outer support disc 12 when the outer connecting disc 13 is opened. Of course, the outer support disc 12 itself may also be connected to the outer filter cartridge 11, for example by an interference fit or the like. After the outer support disc 12 is connected with the adjacent outer connecting disc 13, the outer support disc 12 can be prevented from shaking inside the outer filter cartridge 11, so that the outer wind-blocking blades 21 on the outer support disc 12 and the outer filter cartridge 11 are relatively static, and the outer wind-blocking blades 21 can drive the outer filter cartridge 11 to synchronously rotate.

In the embodiment of the invention, the outer connecting disc 13 and the outer supporting disc 12 are detachably connected so as to be convenient for dismounting and mounting. In an embodiment, the outer connecting disc 13 and the outer supporting disc 12 are in a plug fit manner, or both are connected by screws, etc. Since the outer support disc 12 and the outer connection disc 13 are detachable and the outer filter cartridge 11 and the connection disc are also detachable, the cylindrical outer filter cartridge 11 can be replaced according to cooking habits of users or regions, such as staple habits with heavy oil smoke, and can be matched with the replaceable outer filter cartridge 11. Namely, after using for a period of time, the outer filter cartridge 11 is too dirty and the user is reluctant to clean, and the user can dismantle the outer connection disc 13 by oneself, and then replace the new outer filter cartridge 11 without influencing the structure of the original outer filter assembly. Of course, the user can also remove the outer filter cartridge 11 for cleaning and then reinstall it. When the outer support disc 12 and the outer filter cartridge 11 are detached from each other, the user can separate the outer support disc 13 from the outer support disc 12 and the outer filter cartridge 11, and then draw the outer support disc 12 with the outer wind blocking blades 21 from the outer filter cartridge 11. Alternatively, the material of the outer filter cartridge 11 may be nylon mesh or metal mesh, etc. The nylon net is low in cost, and can be directly discarded after the outer filter cartridge 11 is dirty so as to replace a new outer filter cartridge 11.

Referring to fig. 5, in an embodiment, a first rotating shaft 131 is disposed on a surface of the external connecting disc 13 away from the external filter cartridge 11, and the first rotating shaft 131 is rotatably connected to the housing 40 or other structures on the lampblack purification device.

For embodiments where the outer filter assembly includes a plurality of outer filter cartridges 11, the adjacent ends between two adjacent outer filter cartridges 11 share one outer connecting disc 13 for weight reduction.

Referring to fig. 10 and fig. 11, in an embodiment, the inner filter assembly further includes at least two inner support plates 16 located in the inner filter cylinder 15 and oppositely disposed, and two ends of the inner wind-blocking blades 22 are correspondingly connected to the two inner support plates 16. The inner wind-blocking blades 22 are mounted on the inner supporting disc 16, and when the inner wind-blocking blades 22 need to be cleaned, the whole inner supporting disc 16 can be taken out, so that the inner wind-blocking blades 22 do not need to be detached individually for cleaning.

Referring to fig. 12 and 13, the inner wind-blocking blades 22 of the present embodiment are detachably connected to the inner support disk 16. Optionally, the inner supporting plate 16 is opened with a second insertion hole 161 for inserting the inner wind-blocking blade 22. The splicing mode is adopted to facilitate the disassembly and assembly of the inner wind-shield blades 22. In other embodiments, the inner wind-shielding blade 22 may also be connected to the inner supporting plate 16 by a screw, or the inner wind-shielding blade 22 may also be clamped to the inner supporting plate 16 by a snap structure, etc.

Specifically, the circumferential surface of the inner supporting plate 16 is provided with a second insertion notch 162 communicating with the second insertion hole 161; the inner wind-shielding blade 22 has an inner blade body 221 and a second limit flange 222 connected to the end of the inner blade body 221, the inner blade body 221 extends along the length direction of the inner filter cartridge 15 and is inserted into the insertion hole from the second insertion notch 162, and the second limit flange 222 abuts against the surface of the inner support disc 16 departing from the inner blade body 221 so as to limit the axial movement of the inner wind-shielding blade 22 along the inner support disc 16.

Referring again to fig. 11, in an embodiment, the inner filter assembly further includes two inner connection discs 17, and the two inner connection discs 17 correspondingly abut against two end surfaces of the inner filter cylinder 15 to limit the inner filter cylinder 15 from moving in the axial direction. In this embodiment, the inner support disc 16 is detachably connected to the adjacent inner support disc 17, that is, the inner support disc 16 is also disposed near the end of the inner filter cylinder 15, and the inner support disc 16 is located inside the inner filter cylinder 15, and the inner support disc 16 can be disposed at a distance from the peripheral wall of the inner filter cylinder 15 to facilitate the inner support disc 16 to be taken out when the inner support disc 17 is opened. Of course, the inner support disk 16 itself may also be connected to the inner filter cartridge 15, for example, by an interference fit or the like. Interior supporting disk 16 is connected the back with adjacent in-connection dish 17, can prevent that interior supporting disk 16 from rocking in cartridge filter 15 inside, so is relative static between interior wind blade 22 on the interior supporting disk 16 and the interior cartridge filter 15 to guaranteed that interior wind blade 22 can drive cartridge filter 15 synchronous revolution.

In the embodiment of the invention, the inner connecting disc 17 and the inner supporting disc 16 are detachably connected, so that the inner connecting disc and the inner supporting disc are conveniently detached. In one embodiment, the inner connecting plate 17 and the inner supporting plate 16 are connected by a plug-in fit manner, or are connected by screws, etc. Since the inner support disc 16 and the inner connecting disc 17 are detachable and the inner filter cartridge 15 and the connecting discs are also detachable, the cylindrical inner filter cartridge 15 can be replaced according to cooking habits of users or regions, such as staple food habits with heavy oil smoke, and can be matched with the replaceable inner filter cartridge 15. Even if the inner filter cartridge 15 is too dirty and the user is reluctant to clean it after a period of use, the user can remove the inner adapter plate 17 by himself and replace the inner filter cartridge 15 with a new one without affecting the structure of the original inner filter assembly. Of course, the user may remove the inner filter cartridge 15 for cleaning and then reinstall it. In the removal process, the user separates the inner disk 17 from the inner disk 16 and the inner cartridge 15, and then pulls the inner disk 16 with the inner wind-blocking blades 22 away from the inner cartridge 15. Alternatively, the material of the inner filter cylinder 15 may be nylon mesh or metal mesh, etc. The use of nylon mesh is less costly and allows the inner filter cartridge 15 to be discarded after it is dirty, in order to replace a new inner filter cartridge 15.

In one embodiment, the inner disk 17 is attached to the outer support disk 12. In the embodiment where the inner and outer filter assemblies 10 are rotatably connected, the inner disk 17 is provided with a second rotatable shaft 18, and the second rotatable shaft 18 is rotatably connected to the outer support disk 12. Specifically, the outer support disc 12 is provided with an annular rib 123, the annular rib 123 is provided with a bearing 14, the inner connecting disc 17 is provided with a second rotating shaft 18, and the second rotating shaft 18 is connected with the bearing 14. The annular convex rib 123 can increase the connection area with the bearing 14, and the bearing 14 is prevented from loosening.

Referring to fig. 11 and 14, in an embodiment, the filter assembly 10 further includes a support rod 30 extending along the axial direction of the inner filter cartridge 15, and the support rod 30 penetrates the inner support disc 16 and is connected to the inner connecting disc 17. Optionally, a circular truncated cone 171 is disposed on a surface of the inner connecting disc 17 away from the second rotating shaft 18, the circular truncated cone 171 is disposed coaxially with the second rotating shaft 18, and the supporting rod 30 is connected to the circular truncated cone 171. By providing the support rod 30, the coaxiality of the second rotating shafts 18 at both ends of the inner filter assembly can be ensured.

Referring to fig. 4, optionally, the supporting rod 30 includes two supporting strips 31, the supporting strips 31 extend along the axial direction of the outer filter cartridge 11, and long sides of the two supporting strips 31 are connected to each other. In one embodiment, the supporting bars 31 have an L-shaped cross section, and the two supporting bars 31 form a cross-shaped cross section structure. Of course, the cross section of the supporting bars 31 may be in a straight shape, and the two supporting bars 31 may be connected to form a cross shape or an L shape. In this embodiment, the circular truncated cone 171 is correspondingly provided with mounting holes 172, and the mounting holes 172 correspondingly have a cross structure.

The invention also provides an oil fume purification device which is a range hood or an integrated stove, and for the integrated stove, the integrated stove comprises the range hood and a stove body, wherein the range hood is arranged on the stove body, and the range hood and the stove body are combined to form the integrated stove. Of course, the integrated hob may also comprise one or more of a dishwasher, a disinfection cabinet or an oven or the like.

In the embodiment of the present invention, please refer to fig. 1 to fig. 3 in combination, the lampblack purification device includes a housing 40 and a fan 50, the housing 40 is provided with a smoke suction port and a smoke exhaust port 43, an air duct 44 is formed in the housing 40, and the air duct 44 communicates the smoke suction port and the smoke exhaust port 43. The air duct 44 has an air inlet section 441 and an air outlet section 442, the air inlet section 441 is connected to the smoke suction port, the air outlet section 442 is connected to the smoke exhaust port 43, and the fan 50 is disposed at the air outlet section 442. This fan 50 is centrifugal fan 50 for the wind pressure is bigger, and the oil absorption cigarette effect is better. The dashed lines in fig. 3 are only used to illustrate the division between the air inlet segment 441 and the air outlet segment 442, but in other embodiments, the air inlet segment 441 and the air outlet segment 442 may be divided from other positions.

Specifically, for the range hood, the housing 40 includes a decoration cover and a smoke collection cover, the decoration cover is hollow, optionally, the decoration cover is substantially square, a smoke exhaust port 43 is further provided at the top of the decoration cover, and a check valve is provided at the smoke exhaust port 43. Of course, the trim cover may also be cylindrical or irregularly shaped, etc. The smoke collecting cover is arranged below the decorative cover and is provided with a smoke suction port, and the cooking smoke is sucked into the air duct 44 from the smoke suction port and is discharged from the smoke discharge port 43 under the action of the centrifugal fan 50.

In the embodiment of the present invention, the lampblack purification device further includes a filter assembly 10, the filter assembly 10 is rotatably disposed in the air duct 44, and the filter assembly 10 is the filter assembly 10 as described above. Optionally, the filter assembly 10 is disposed at the intake section 441. Referring to fig. 2, in an embodiment, a supporting seat 48 is disposed on the housing 40, the supporting seat 48 is formed with a rotating hole, and the first rotating shaft 131 of the filtering assembly 10 is rotatably engaged with the rotating hole. Optionally, a plurality of filter assemblies 10 may be disposed in the housing 40, the plurality of filter assemblies 10 are arranged along the length direction of the smoking opening, and the plurality of filter assemblies 10 are rotatably connected to the support base 48 respectively to realize independent rotation.

In one embodiment, the filter assembly 10 can be rotated by a fan 50, the fan 50 drives the smoke to move in the air duct 44, and the smoke pushes the filter assembly 10 to rotate integrally. The filtering component 10 can realize self-rotation only by being pushed by smoke without being driven by a motor, and is beneficial to the simplification of the structure and the reduction of the cost. In one embodiment, a power source may be separately provided to drive the filter assembly 10 to rotate, for example, a motor may be additionally provided to drive the filter assembly 10 to rotate, so as to ensure the smoothness of rotation.

In the invention, the filtering component 10 is arranged in the oil fume purification device, and the filtering component 10 can rotate, so that when smoke flows through the filtering component 10, the filtering component 10 rotates to continuously collide the smoke, particulate matters such as grease and the like in the smoke are intercepted by the filtering component 10, the collision process can fully filter the smoke, and the filtering effect is enhanced. Because the filter assembly 10 is disposed at the air inlet section 441, the smoke can be filtered before entering the fan 50, and therefore, the probability of the fan 50 being polluted by oil smoke can be reduced.

In one embodiment, the filter assembly 10 extends along the length direction of the smoke exhaust port, and the rotation axis of the filter assembly 10 is along the length direction thereof, i.e. the rotation axis of the filter assembly 10 is along the left-right direction, so as to ensure that the oil smoke on the left and right sides of the lower smoke exhaust port 41 is filtered by the filter assembly 10.

The range hood in the embodiment of the invention can be a side-suction range hood, a top-suction range hood, a side-suction and top-suction mixed range hood and the like. The side suction and the top suction in this embodiment are defined relative to the flow direction of the smoke, the smoke generated by cooking initially moves upward, and when the smoke suction port is a side suction smoke suction port, the upward flowing smoke changes direction to flow laterally and flows into the smoke suction port. When the smoking port is a top smoking port, the smoke moving upwards directly flows to the smoking port without changing the direction laterally.

The specific installation position of the filter assembly 10 is described below with reference to the hybrid range hood, but is not limited thereto.

The housing 40 comprises a back plate 47, a side suction panel 45 and a top suction panel 46, wherein the back plate 47 extends along the vertical direction, the side suction panel 45 is arranged opposite to the back plate 47, the top suction panel 46 extends along the front-back direction, and the rear end of the top suction panel 46 is connected with the upper end of the side suction panel 45;

the smoking mouth has and establishes the lower smoking mouth 41 of side suction panel 45 and establishes the last smoking mouth 42 of top suction panel 46, filter assembly 10 sets up the side suction panel 45 with between the backplate 47, and be located the top of lower smoking mouth 41, and be located the below of last smoking mouth 42, filter assembly 10 follows the length direction of lower smoking mouth 41 extends.

Generally, the lower mouth 41 is larger in area than the upper mouth 42 and is closer to the source of the fumes, so theoretically most of the fumes enter the interior of the machine through the lower mouth 41. In order to reduce the contamination of the fan 50 by the soot, a filter assembly 10 that can freely rotate is provided below the fan 50 and above the lower soot suction port 41. After the range hood is started, airflow flows through the lower smoke suction port 41 to drive the filtering component 10 to rotate, the filtering component 10 rotates to continuously collide with oil smoke, grease in the oil smoke is intercepted by the filter screen, and the probability that the fan 50 is polluted by the oil smoke is reduced. In addition, since the lower suction port 41 generally extends in a long shape in the left-right direction, the filter unit 10 extends in the longitudinal direction of the lower suction port 41, and the oil smoke on the left and right sides of the lower suction port 41 can be surely filtered by the filter unit 10. In this embodiment, the filter assembly 10 is disposed between the side suction panel 45 and the back panel 47, and the cavity extending in the left-right direction formed at this position is beneficial to the left-right extension of the filter assembly 10, and the two are more matched in shape, so that the filter assembly 10 can be better adapted to the arrangement, and the filter assembly 10 is ensured to separate the air duct 44 into an upper part and a lower part as much as possible, so that the air can be greatly reduced to run toward the fan 50 without being filtered by the filter assembly 10.

It should be noted that for a top range hood, the filter assembly 10 is disposed above the upper smoke exhaust port 42.

In an embodiment of the present invention, the filter assembly 10 is located downstream of the smoking port in the flow of gas. For the range hood, the filter assembly 10 is located above the smoke suction port (referred to as the lower smoke suction port 41). For an integrated stove, the filter assembly 10 is located below the smoking port. A freely rotatable filter assembly 10 is provided between the fan 50 and the mouthpiece. After the oil fume purification device is started, airflow flowing through the smoke suction port basically contacts the filtering component 10 to push the filtering component 10 to rotate, the filtering component 10 rotates to continuously collide with oil fume, grease in the oil fume is intercepted by the filter screen, and the probability that the fan 50 is polluted by the oil fume is reduced.

Alternatively, the axis of the fan 50 is in the front-rear direction, and the rear end of the fan 50 is a main air inlet, and the air flow flows into the centrifugal volute from the rear end of the fan 50. Thus, when the airflow enters the smoking port, most of the airflow rises up the plane of the back plate 47. When the air flow passes through the filter assembly 10, the air flow pushes the outer and inner wind- shielding blades 21 and 22 to rotate the filter assembly 10, and the filter assembly 10 filters the soot through the outer and inner filter holes 111 and 151 whose surfaces are continuously rotated. Optionally, the distance between the filter assembly 10 and the side suction face plate 45 is less than the distance between the filter assembly 10 and the back plate 47. Therefore, most of the smoke runs to the rear side, and flows upwards from the rear side to the main air inlet of the fan 50, so that the direct-suction and direct-discharge effect is achieved, and the resistance of the forward airflow of the fan 50 is reduced.

For the traditional oil smoke purification device, because the filter screen is fixed at the smoke suction port, the oil smoke pollution probability is high, and in order to avoid the blockage of the outer filter holes 111 by the condensed grease, the size of the filter screen grating or the perforation is generally larger. The through hole rate of the filter screen is increased, the surface area is reduced, the area for the filter screen to collide with and intercept oil smoke is also reduced, and the oil-fat separation degree is reduced relatively. In addition, for the design of the filter screen, the surface of the filter screen is uneven after the filter screen is pressed into a certain shape in general.

In view of the above problems, in the embodiment of the present invention, a filter screen is disposed at the smoke suction port, the filter assembly 10 is disposed in the air duct 44, and the aperture of the filter hole of the filter screen is larger than the aperture of the outer filter hole 111 of the filter assembly 10, so that the filter screen primarily filters the oil smoke to filter large particles, the aperture of the filter assembly 10 is smaller, and the filter assembly 10 can freely rotate, thereby further filtering small particles and further increasing the oil smoke filtering efficiency. Because of adopting the double filtration form, the filtration pore of the filter screen at the position of the smoking hole can be larger, thus ensuring the smooth flow of the air current, and simultaneously, the filtration area is not required to be increased by compression; the internal filtering component 10 can ensure high oil separation degree, thereby achieving double filtering effect.

The above description is only a preferred embodiment of the present invention, and not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims (11)

1. A filter assembly, comprising:

an outer filter assembly comprising an outer filter cartridge having a plurality of outer filter apertures;

an inner filter assembly disposed within the outer filter cartridge, the inner filter assembly including an inner filter cartridge extending along a length of the outer filter cartridge, the inner filter cartridge having a plurality of inner filter pores; and the number of the first and second groups,

a plurality of blades that keep out the wind set up in the outer cartridge filter to follow the length direction of outer cartridge filter extends, and is a plurality of the blades that keep out the wind are followed the circumference of outer cartridge filter is arranged.

2. The filter assembly of claim 1, wherein the outer filter cartridge and the inner filter cartridge are spaced apart to define an annular gap, and wherein the plurality of wind-shield blades comprises a plurality of outer wind-shield blades disposed within the annular gap; and/or the presence of a gas in the gas,

the plurality of wind-shielding blades further comprises a plurality of inner wind-shielding blades arranged in the inner filter cylinder.

3. The filter assembly of claim 2, wherein the outer wind-shield blades are connected to the outer filter assembly; the inner wind-shield blade is connected with the inner filter assembly.

4. The filter assembly of claim 3, wherein the inner filter assembly is rotatably connected to the outer filter assembly at each of the lengthwise ends thereof.

5. The filter assembly of claim 3, further comprising two outer support disks disposed in the outer filter cartridge, wherein the two outer support disks are disposed at two ends of the inner filter assembly, and two ends of the outer wind blocking blades are correspondingly connected to the two outer support disks; and/or the presence of a gas in the gas,

the inner filter assembly further comprises two inner supporting disks positioned in the inner filter cartridge, and two ends of the inner wind-shielding blades are correspondingly connected with the two inner supporting disks.

6. The filter assembly of claim 5, further comprising two outer connecting discs, wherein the two outer connecting discs correspondingly abut against two end faces of the outer filter cartridge, and the outer supporting disc is detachably connected with the adjacent outer connecting disc;

interior filtering component still includes two in-connection dishes, two the in-connection dish corresponds the butt two terminal surfaces of interior cartridge filter, interior supporting disk and adjacent in-connection dish can dismantle the connection.

7. The filter assembly of claim 2, wherein the outer wind deflector has inner and outer edges distributed across its width, the inner edges being curved toward the axis of the inner filter cartridge.

8. The filter assembly of claim 1, wherein a plurality of the inner filter cartridges are disposed within the outer filter cartridge, the plurality of inner filter cartridges being arranged along a length of the outer filter cartridge; or,

the inner filter cartridges are sleeved at intervals inside and outside; or,

the inner filter cartridges are arranged at intervals along the circumferential direction of the outer filter cartridges.

9. An oil fume purification device is characterized in that the oil fume purification device is a range hood or an integrated stove; the oil smoke purifier includes:

the shell is provided with a smoke suction port, a smoke exhaust port and an air duct, and the air duct is provided with an air inlet section connected with the smoke suction port and an air outlet section connected with the smoke exhaust port;

the fan is arranged at the air outlet section; and the number of the first and second groups,

the filter assembly of any of claims 1-8, rotatably disposed in the intake section.

10. The fume purification apparatus of claim 9, wherein the filter assembly extends along a length of the smoke port, the filter assembly having an axis of rotation along the length thereof.

11. The fume purification apparatus according to claim 10, wherein the fume purification apparatus is a range hood;

the shell comprises a back plate, a side suction panel and a top suction panel, the back plate extends along the vertical direction, the side suction panel is arranged opposite to the back plate, and the rear end of the top suction panel is connected with the upper end of the side suction panel;

the smoking mouth has set up the lower smoking mouth of side suction panel with set up the last smoking mouth of top suction panel, filter assembly sets up the side suction panel with between the backplate, and be located the top of lower smoking mouth, filter assembly follows the length direction of lower smoking mouth extends.

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