CN109758844B - Double-layer dynamic filter screen mechanism and range hood with same - Google Patents

Double-layer dynamic filter screen mechanism and range hood with same Download PDF

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Publication number
CN109758844B
CN109758844B CN201711096346.6A CN201711096346A CN109758844B CN 109758844 B CN109758844 B CN 109758844B CN 201711096346 A CN201711096346 A CN 201711096346A CN 109758844 B CN109758844 B CN 109758844B
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China
Prior art keywords
net
filter cartridge
double
impeller
filter
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CN109758844A (en
Inventor
吴灵辉
何立博
茅忠群
诸永定
申志贤
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Ningbo Fotile Kitchen Ware Co Ltd
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Ningbo Fotile Kitchen Ware Co Ltd
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Priority to CN201711096346.6A priority Critical patent/CN109758844B/en
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Abstract

The utility model provides a double-deck dynamic filter screen mechanism, including spiral case (13) and locate first motor (1) and impeller (11) in spiral case (13), its characterized in that this double-deck dynamic filter screen mechanism still includes outer cartridge filter net (12) and interior cartridge filter net subassembly, foretell outer cartridge filter net (12) set up the front side at impeller (11), foretell interior cartridge filter subassembly (6) include interior cartridge filter net and can drive the actuating mechanism that interior cartridge filter net internal diameter increases or reduces, in outer cartridge filter net (12) were located to foretell interior cartridge filter net to, have the clearance between the outer wall of aforesaid interior cartridge filter net and the inner wall of outer cartridge filter net (12). A range hood is also disclosed. The quick staggered movement exists between the inner and outer net filter holes, and the rotary net has a disturbance effect on air flow, so that the grease separation degree is improved.

Description

Double-layer dynamic filter screen mechanism and range hood with same
Technical Field
The utility model relates to a lampblack filtering mechanism which is mainly applied to a lampblack absorber, and also relates to the lampblack absorber, belonging to the technical field of kitchen ranges.
Background
The current range hood is used for protecting a motor and separating oil smoke, an air inlet net cover is generally arranged at an air inlet of a fume collecting hood, and as an improvement, a plane net cover is also arranged at an air inlet of a volute and can rotate together with an impeller, and the Chinese patent of ZL201420732722.1, namely a rotary centrifugal oil smoke separation device (the authorized bulletin number is CN 204285570U); reference may also be made to the chinese utility model patent No. ZL201620110299.0, "a flat-panel range hood" (grant bulletin No. CN 205536025U);
however, the planar mesh enclosure with the structure has the following defects in the use process:
firstly, the noise is loud, the contact surface between the plane mesh enclosure and the oil smoke is not big enough, the smoke passing through the plane mesh enclosure is vertical to the surface of the mesh enclosure, and the smoke enters the range hood and collides with the rotating airflow generated by the rotation of the impeller to cause loud noise; secondly, the phenomena of incomplete oil smoke separation and the like exist, the air inlet mode of the planar mesh enclosure does not accord with air fluidics, and the oil smoke cannot be well drained.
Disclosure of Invention
The utility model aims to solve the technical problem of providing a double-layer dynamic filter screen mechanism with good oil smoke separation effect aiming at the current state of the art.
The utility model aims to provide a double-layer dynamic filter screen mechanism capable of adjusting the interval between the inner filter screen and the outer filter screen according to the oil smoke amount.
The utility model aims to provide a range hood with good oil smoke separation effect.
The utility model aims to provide a range hood capable of adjusting the distance between an inner filter screen and an outer filter screen according to the oil smoke amount.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a double-deck dynamic filter screen mechanism, including the spiral case and locate the first motor and the impeller in the spiral case, aforementioned spiral case has the air intake, the output shaft of aforementioned first motor is connected with the impeller, the aforementioned impeller is just to the air intake arrangement of spiral case, its characterized in that this double-deck dynamic filter screen mechanism still includes outer cartridge filter net and interior cartridge filter net subassembly, aforementioned outer cartridge filter net sets up in the front side of impeller and rotates with the impeller together, aforementioned interior cartridge filter subassembly includes interior cartridge filter net and can drive the actuating mechanism that the internal diameter of aforementioned interior cartridge filter net increases or reduces, in the outer cartridge filter net was located to aforementioned interior cartridge filter net outer wall and the inner wall of outer cartridge filter net have the clearance between the outer wall of aforementioned interior cartridge filter net.
Further, the outer filter cartridge net at least partially extends out of the air inlet of the volute.
Further, one end of the outer filter cartridge net is provided with a ring-shaped bottom plate, and the outer filter cartridge net is connected to the impeller through the bottom plate.
Preferably, the single-hole area of the filter mesh of the outer filter cartridge net is 40mm 2 ~400mm 2
Preferably, the filter mesh of the outer filter cartridge web is diamond, circular, regular hexagonal, oval or square.
Preferably, the outer filter cartridge web has a penetration rate of 0.35 to 0.7.
Preferably, the total ventilation area of the outer filter cartridge mesh is 10000mm 2 ~60000mm 2
The inner filter cylinder net comprises at least two arc-shaped net sheets which can be enclosed into a circle, and the driving mechanism can comprise
A second motor having an output rod;
the sliding blocks are at least two and are connected with the corresponding arc-shaped net pieces;
one end of each connecting rod is movably connected with the sliding block, and the other end of each connecting rod is movably connected with the output rod of the second motor; and
the sliding rails are at least two and are radially arranged and can be in sliding fit with the sliding blocks respectively.
Preferably, the number of the arc-shaped net pieces, the sliding blocks, the connecting rods and the sliding rails is four.
Preferably, the single-hole area of the filter mesh of the arc-shaped net sheet is 20mm 2 ~400mm 2 The penetration rate is 0.35-0.7, and the total ventilation area of the arc-shaped net sheet is 10000-60000 mm 2
A range hood comprises a housing, a double-layer dynamic filter screen mechanism and a fume collecting hood, wherein the double-layer dynamic filter screen mechanism is arranged in the housing, and the fume collecting hood is arranged at a lower port of the housing and is provided with an air inlet.
The range hood further comprises a control board, the control output end of the control board is connected with the second motor, an oil smoke sensor is arranged on the inner side of the fume collecting hood, and the signal output end of the oil smoke sensor is connected with the control board. The distance between the inner filter cylinder net and the outer filter cylinder net is adjusted according to the oil smoke amount, so that the requirements on grease separation degree and flow resistance are met.
The inner side of the housing is provided with a front cover plate, the sliding rail and the second motor are arranged on the front cover plate, and a gap is reserved between the front end of the outer filter cartridge net and the front cover plate.
Compared with the prior art, the utility model has the advantages that: the distance between the inner filter cartridge net and the outer filter cartridge net is adjusted by the movable inner filter cartridge net of the driving mechanism, and the requirements of grease separation degree and flow resistance are met. In the rotation process of the outer filter cylinder net, the inner and outer net filter holes are in rapid staggered movement and the rotary net has a disturbance effect on air flow, so that the oil and fat separation degree is improved, and the oil and smoke filtering performance of the range hood is improved on the basis of meeting the oil and smoke absorbing effect.
Drawings
Fig. 1 is a schematic structural diagram of an embodiment.
Fig. 2 is a schematic view of the structure of fig. 1 with the cover removed.
Fig. 3 is a schematic view of the structure with the front cover plate removed.
Fig. 4 is a perspective cross-sectional view of an embodiment.
Fig. 5 is an enlarged view of the inner filter cartridge assembly of fig. 3.
Fig. 6 is a view showing the state when the inner filter cartridge net is opened maximally.
Fig. 7 is an exploded view of fig. 5.
Fig. 8 is a control schematic of the embodiment.
Detailed Description
The utility model is described in further detail below with reference to the embodiments of the drawings.
As shown in fig. 1 to 4, the double-layer dynamic filter screen mechanism in this embodiment includes a volute 13, a first motor 1 and an impeller 11 which are disposed in the volute 13, an outer filter cartridge net 12 and an inner filter cartridge net assembly, the volute 13 has an air inlet, an output shaft of the first motor 1 is connected with the impeller 11, the impeller 11 is disposed opposite to the air inlet of the volute 13, and the volute 13, the first motor 1 and the impeller 12 form a volute fan.
As shown in fig. 5 and 7, the outer filter cartridge net 12 is disposed at the front side of the impeller 11 and rotates together with the impeller 11, the inner filter cartridge assembly 6 includes an inner filter cartridge net and a driving mechanism capable of driving the inner filter cartridge net to increase or decrease in inner diameter, the inner filter cartridge net is disposed in the outer filter cartridge net 12, and a gap is provided between the outer wall of the inner filter cartridge net and the inner wall of the outer filter cartridge net 12.
The outer filter cartridge mesh 12 extends beyond the air inlet of the volute 13. One end of the outer filter cartridge net 12 is provided with a ring-shaped bottom plate 121, the outer filter cartridge net 12 is connected to the impeller 11 through the bottom plate 121, and specifically, the bottom plate 121 is provided with a fastening piece 122 capable of being fastened to the outer side of the impeller. The single-hole area of the filter mesh on the outer filter cartridge net 12 is 40mm 2 ~400mm 2 . The filter mesh openings on the outer filter cartridge screen 12 may be diamond-shaped, circular, regular hexagonal, oval or square. The penetration rate of the outer filter cartridge web 12 is 0.35 to 0.7. The total ventilation area of the outer filter cartridge net 12 is 10000mm 2 ~60000mm 2
Referring to fig. 6 and 7, the inner filter cartridge net in this embodiment includes four arc-shaped meshes 65 that can be enclosed into a circle, the driving mechanism in this embodiment includes a second motor 61, a slider 64, a connecting rod 62 and a sliding rail 63, the second motor 61 is a linear motor, and the power output end has an output rod 611 that can move back and forth and transversely; the number of the sliding blocks 64 is four, and the sliding blocks are connected with the corresponding arc-shaped net pieces 65; four connecting rods 62 are arranged, one end of each connecting rod 62 is movably connected with the sliding block 64, and the other end is movably connected with the output rod 611 of the second motor 61; the slide rails 63 are four and radially arranged with respect to each other and slidably engage with the respective slide blocks 64.
The slide rail 63 and the second motor 61 in this embodiment are provided on the front cover plate 5 (see fig. 2), and a gap is provided between the front end of the outer filter cartridge net 12 and the front cover plate 5.
The filter mesh single hole area of the arc-shaped mesh sheet 65 is 20mm 2 ~400mm 2 And ensure that the area of the single hole is not larger than that of the filter mesh of the outer filter screen cylinder, and the penetration rate of the arc-shaped net sheet 65 is 0.350.7 and the total ventilation area of the arc-shaped net sheet 65 is 10000-60000 mm 2 . The filter mesh of arcuate screen 65 may be diamond-shaped or circular,
the range hood in the embodiment comprises a control board 10, a housing 3, a double-layer dynamic filter screen mechanism and a fume collecting hood 4, wherein the double-layer dynamic filter screen mechanism is arranged in the housing 3, and a front cover plate 5 is arranged on the inner side of the housing 3. The fume collecting hood 4 is arranged at the lower port of the housing 3 and is provided with an air inlet. The inner side of the fume collecting hood 4 is provided with a fume sensor 41.
As shown in fig. 8, the control output terminal of the control board 10 is connected to the second motor 61, and the signal output terminal of the smoke sensor 41 is connected to the control board 10.
The distance between the inner filter cartridge net and the outer filter cartridge net 12 is adjusted by the movable inner filter cartridge net of the driving mechanism according to the oil smoke amount, and the requirements of grease separation degree and flow resistance are met. During the rotation process of the outer filter cylinder net 12, the inner and outer net filter holes have rapid staggered movement and the rotary net has disturbance effect on air flow, so that the grease separation degree is improved, and the utility model improves the fume filtering performance of the range hood on the basis of meeting the fume absorbing effect.
The oil smoke quantity is divided into n grades (n > 1), signals are transmitted by the control board according to the oil smoke quantity detected by the oil smoke sensor, the second motor drives the sliding block to move through the connecting rod, inward and outward movement of the filter screen is realized, different oil smoke quantity grades correspond to different inner and outer net gaps S,0< S < D/4, D is the diameter of the outer net, and the minimum gap is between D/40 and D/10. The default operation is at the minimum gap (see figure 6) during starting, and then the adjustment is carried out according to the actual oil smoke amount. When the oil smoke sensor detects that the oil smoke amount rises by one level, the inner net moves inwards by a certain distance, the inner filter cylinder net and the outer filter cylinder net 12 are enlarged (shown in fig. 5), the flow resistance is reduced, and the oil smoke absorbing effect is improved; and if the oil smoke quantity is reduced by one grade, the gap is reduced until the minimum gap is reached, so that the oil smoke filtering performance is improved.

Claims (11)

1. The double-layer dynamic filter screen mechanism comprises a volute (13), a first motor (1) and an impeller (11) which are arranged in the volute (13), wherein the volute (13) is provided with an air inlet, an output shaft of the first motor (1) is connected with the impeller (11), the impeller (11) is arranged opposite to the air inlet of the volute (13), and the double-layer dynamic filter screen mechanism is characterized by further comprising an outer filter cartridge net (12) and an inner filter cartridge net assembly (6), the outer filter cartridge net (12) is arranged at the front side of the impeller (11) and rotates together with the impeller (11), the inner filter cartridge net assembly (6) comprises an inner filter cartridge net and a driving mechanism capable of driving the inner filter cartridge net to increase or decrease in inner diameter, the inner filter cartridge net is arranged in the outer filter cartridge net (12), and a gap is reserved between the outer wall of the inner filter cartridge net and the inner wall of the outer filter cartridge net (12);
the outer filter cartridge net (12) at least partially extends out of an air inlet of the volute (13);
the inner filter cartridge net comprises at least two arc-shaped net sheets (65) which can be encircled into a circle, the driving mechanism comprises a second motor (61), and the power output end is provided with an output rod (611) which can transversely move back and forth;
the sliding blocks (64) are at least two and are connected with the corresponding arc-shaped net pieces (65);
one end of each connecting rod (62) is movably connected with the sliding block (64), and the other end is movably connected with an output rod (611) of the second motor (61); and
at least two slide rails (63) are radially arranged on each other and can be in sliding fit with respective slide blocks (64).
2. The double-layer dynamic filter screen mechanism according to claim 1, wherein one end of the outer filter cartridge net (12) is provided with a ring-shaped bottom plate (121), and the outer filter cartridge net (12) is connected to the impeller (11) through the bottom plate (121).
3. A double-deck dynamic filter mechanism according to claim 2, characterized in that the single-hole area of the filter mesh on the outer filter cartridge screen (12) is 40mm 2 ~400mm 2
4. A double-deck dynamic filter mechanism according to claim 2, characterized in that the filter mesh openings on the outer filter cartridge mesh (12) are diamond-shaped, circular, regular hexagonal, oval or square.
5. A double-deck dynamic filter mechanism according to claim 2, characterized in that the threading rate of the outer filter cartridge mesh (12) is 0.35-0.7.
6. A double-deck dynamic filter mechanism according to claim 2, characterized in that the total ventilation area of the outer filter cartridge mesh (12) is 10000mm 2 ~60000mm 2
7. The dual-layer dynamic filter mechanism of claim 1, wherein the arcuate screen (65), the slider (64), the link (62) and the slide rail (63) are all four.
8. A double-deck dynamic filter mechanism according to claim 1, characterized in that the single-hole area of the filter mesh of the arcuate screen sheet (65) is 20mm 2 ~400mm 2 The penetration rate is 0.35-0.7, and the total ventilation area of the arc-shaped net sheet (65) is 10000-60000 mm 2
9. A range hood with a double-layer dynamic filter screen mechanism as claimed in any one of claims 1-8, comprising a housing (3), a double-layer dynamic filter screen mechanism and a fume collecting hood (4), wherein the double-layer dynamic filter screen mechanism is arranged in the housing (3), and the fume collecting hood (4) is arranged at the lower port of the housing (3) and is provided with an air inlet.
10. The range hood according to claim 9, further comprising a control board (10) having a control output connected to the second motor (61), wherein a smoke collecting hood (4) is provided with a smoke sensor (41) inside, and a signal output of the smoke sensor (41) is connected to the control board (10).
11. The range hood according to claim 9, characterized in that a front cover plate (5) is arranged on the inner side of the housing (3), the sliding rail (63) and the second motor (61) are arranged on the front cover plate (5), and a gap is arranged between the front end of the outer filter cartridge net (12) and the front cover plate (5).
CN201711096346.6A 2017-11-09 2017-11-09 Double-layer dynamic filter screen mechanism and range hood with same Active CN109758844B (en)

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Application Number Priority Date Filing Date Title
CN201711096346.6A CN109758844B (en) 2017-11-09 2017-11-09 Double-layer dynamic filter screen mechanism and range hood with same

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Application Number Priority Date Filing Date Title
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CN109758844B true CN109758844B (en) 2024-01-16

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Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110822523B (en) * 2019-11-25 2021-08-31 佛山市顺德区美的洗涤电器制造有限公司 Filtering component and oil smoke purifier
CN110906409B (en) * 2019-12-13 2022-02-01 佛山市顺德区美的洗涤电器制造有限公司 Filtering component and oil smoke purifier
CN113639291B (en) * 2021-08-31 2022-10-21 宁波方太厨具有限公司 Range hood and control method thereof

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575681A1 (en) * 1992-06-26 1993-12-29 Compagnie Europeenne Pour L'equipement Menager "Cepem" Exhaust hood with extendable inlet tube and a filtering inlet
CN201819287U (en) * 2010-08-10 2011-05-04 樱花卫厨(中国)股份有限公司 Dual-effect oil net device
CN103557543A (en) * 2013-10-17 2014-02-05 宁波方太厨具有限公司 Range hood with lampblack purification function
CN103644588A (en) * 2013-12-16 2014-03-19 刘恩华 Self-cleaning smoke exhaust ventilator
CN105042663A (en) * 2015-08-24 2015-11-11 浙江万事兴电器有限公司 Lifting type smoke exhaust
CN206063928U (en) * 2016-08-31 2017-04-05 惠州市富林化工有限公司 A kind of Double layer high efficient filter plant for coating manufacture

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWM492194U (en) * 2014-08-01 2014-12-21 Ubotek Technology Co Ltd Dust collection drum

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0575681A1 (en) * 1992-06-26 1993-12-29 Compagnie Europeenne Pour L'equipement Menager "Cepem" Exhaust hood with extendable inlet tube and a filtering inlet
CN201819287U (en) * 2010-08-10 2011-05-04 樱花卫厨(中国)股份有限公司 Dual-effect oil net device
CN103557543A (en) * 2013-10-17 2014-02-05 宁波方太厨具有限公司 Range hood with lampblack purification function
CN103644588A (en) * 2013-12-16 2014-03-19 刘恩华 Self-cleaning smoke exhaust ventilator
CN105042663A (en) * 2015-08-24 2015-11-11 浙江万事兴电器有限公司 Lifting type smoke exhaust
CN206063928U (en) * 2016-08-31 2017-04-05 惠州市富林化工有限公司 A kind of Double layer high efficient filter plant for coating manufacture

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