CN109595626B - Near-suction type range hood - Google Patents
Near-suction type range hood Download PDFInfo
- Publication number
- CN109595626B CN109595626B CN201710923537.9A CN201710923537A CN109595626B CN 109595626 B CN109595626 B CN 109595626B CN 201710923537 A CN201710923537 A CN 201710923537A CN 109595626 B CN109595626 B CN 109595626B
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- fan
- baffle
- cavity
- sound absorption
- range hood
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- 230000009467 reduction Effects 0.000 claims abstract description 33
- 238000010521 absorption reaction Methods 0.000 claims description 46
- 238000005192 partition Methods 0.000 claims description 20
- 229920000742 Cotton Polymers 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 238000000926 separation method Methods 0.000 abstract description 4
- 230000000391 smoking effect Effects 0.000 abstract description 4
- 239000000779 smoke Substances 0.000 description 14
- 230000000694 effects Effects 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 5
- 238000005452 bending Methods 0.000 description 3
- 239000004519 grease Substances 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K11/00—Methods or devices for transmitting, conducting or directing sound in general; Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/16—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general
- G10K11/161—Methods or devices for protecting against, or for damping, noise or other acoustic waves in general in systems with fluid flow
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Aviation & Aerospace Engineering (AREA)
- Fluid Mechanics (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application discloses a near-suction type range hood, which comprises a shell, a case and a fan system, wherein the case is positioned above the shell, and an air inlet is formed in the front side of the shell, and the near-suction type range hood is characterized in that: the fan system is a ternary fan, the ternary fan is obliquely arranged in a cavity formed by the shell and the case together in the horizontal direction, an air inlet of the ternary fan corresponds to an air inlet on the shell, and a noise reduction module for reducing noise generated by the ternary fan is arranged in the shell. By adopting the ternary fan, the smoking efficiency can be greatly improved by adopting the ternary fan; the three-way fan is obliquely arranged in the shell and the case, so that the three-way fan not only has a shorter flow passage, but also is close to the air outlet pipeline, thereby greatly reducing the eddy loss generated by air flow separation in the impeller of the three-way fan and improving the impeller efficiency; through setting up the module of making an uproar that falls, can absorb the full frequency channel noise of high frequency, intermediate frequency and low frequency, avoid influencing the normal use of range hood.
Description
Technical Field
The application relates to kitchen appliances, in particular to a near-suction type range hood.
Background
The range hood has become one of the indispensable kitchen appliances in modern families. The general range hood comprises a top suction type range hood and a near suction type range hood, the near suction type range hood is far away by utilizing vortex wind pressure, most of oil smoke which is nearer to a cooking bench is absorbed in an arc line mode, adverse effects on human health can be reduced, a power source is nearer to the cooking bench, and the suction effect of the power source is basically not reduced.
The utility model provides a range hood of chinese patent publication of application No. 201710090915.X, includes shell, baffle and fan subassembly, and the baffle is established inside the shell and is separated into front side cavity and the rear side cavity of arranging along the fore-and-aft direction with shell inside, is equipped with main air intake on the baffle, and the fan subassembly supports on the baffle, and at least part fan subassembly is located the rear side cavity, and the air inlet port of fan subassembly is established at main air intake department and is put forward side cavity intercommunication.
In the scheme of the prior art, a multi-wing centrifugal fan is generally adopted, the multi-wing centrifugal fan is arranged in a lower triangle, in order to ensure higher air inlet efficiency, the volume of a fan system is relatively large, and in addition, the arrangement mode of the fan is that the direction of the air is gradually changed due to the pre-rotation of the impeller and the 90-degree steering process of the air flowing into the impeller, and the simple front-back consistent inlet and outlet angles are unfavorable for the actual functional force of the impeller; in addition, the fan is far away from the air outlet pipeline, so that the pipeline resistance is difficult to overcome, a user with a straight surface of the fan lacks noise reduction measures, and the noise is high.
Disclosure of Invention
The application aims to solve the technical problems of the prior art and provides a near-suction type range hood which improves smoking efficiency and reduces noise.
The technical scheme adopted for solving the technical problems is as follows: the utility model provides a near-suction type range hood, includes the casing, is located the quick-witted case and the fan system of casing top, the front side of casing is formed with air intake, its characterized in that: the fan system is a ternary fan, the ternary fan is obliquely arranged in a cavity formed by the shell and the case together in the horizontal direction, an air inlet of the ternary fan corresponds to an air inlet on the shell, and a noise reduction module for reducing noise generated by the ternary fan is arranged in the shell.
Preferably, the noise reduction module is arranged on a noise propagation path of the ternary fan, so that noise is reduced better, the noise reduction module is arranged below the ternary fan and close to or clung to the ternary fan, and the noise reduction module comprises a plurality of baffles forming a sound absorption back cavity and sound absorption holes formed in the top of the sound absorption back cavity.
Preferably, for being convenient for set up in the casing, adapt to the cavity shape of casing, the baffle that constitutes the sound absorption back of the body chamber of module of making an uproar falls includes left baffle, right baffle, preceding baffle, backplate, end baffle and top baffle, the width of top baffle in preceding, rear direction is greater than end baffle, top baffle is from front to back upwards slope gradually, the sound absorption Kong Kaishe is in on the top baffle.
In order to play a role in noise in a wider frequency band, the sound absorption back cavity is internally provided with a middle partition plate and is divided into a first cavity and a second cavity which are positioned at the left side and the right side, the first cavity is internally provided with a first cavity partition plate and is divided into at least two first resonant cavities, and the second cavity is internally provided with a second cavity partition plate and is divided into at least two second resonant cavities.
In order to increase the sound absorption coefficient of high-frequency noise, the cavity volume of the first resonant cavity is smaller than that of the second resonant cavity.
In order to enable the noise reduction module to reach the sound absorption frequency band limit, the sound absorption holes comprise at least two first sound absorption holes, and the aperture of each first sound absorption hole is 0.5-1 mm.
In order to widen the sound absorption frequency band, the sound absorption holes further comprise at least two second sound absorption holes, and the aperture of each second sound absorption hole is larger than that of each first sound absorption hole.
In order to increase the sound absorption coefficient of low-frequency noise, a baffle plate at the top of the noise reduction module is attached with sound absorption cotton, and a third sound absorption hole matched with the second sound absorption hole is formed in the sound absorption cotton.
In order to avoid entering the noise reduction module after the grease separation to influence the noise reduction, the bottom below of casing is provided with the oil cup, at least one first oil drip hole has been seted up on the bottom of noise reduction module, the second oil drip hole has been seted up to the bottom of casing, first oil drip hole, second oil drip hole correspond with the oil cup.
In order to guide the oil smoke into the ternary fan better, increase the centrifugal boosting effect of ternary fan front side, reduce pressure loss, the front side of ternary fan is provided with the aviation baffle, the aviation baffle includes the main part with the cavity adaptation in the casing, the periphery of main part is buckled to the front side of casing and is formed and draw in the cigarette chamber, offered the air guide mouth with the air intake adaptation of ternary fan in the main part.
Compared with the prior art, the application has the advantages that: by adopting the ternary fan, the fan has compact structure, relatively small size, high fan efficiency and high air pressure, and the generated negative pressure gradient is large, so that the smoking efficiency is greatly improved; the three-way fan is obliquely arranged in the shell and the case, so that the three-way fan not only has a shorter flow passage, but also is close to the air outlet pipeline, thereby greatly reducing the eddy loss generated by air flow separation in the impeller of the three-way fan and improving the impeller efficiency; through setting up the module of making an uproar that falls, can absorb the full frequency channel noise of high frequency, intermediate frequency and low frequency, avoid influencing the normal use of range hood.
Drawings
Fig. 1 is a schematic view of a range hood according to the present application;
fig. 2 is a sectional view of the range hood of the present application;
fig. 3 is an exploded structure view of the range hood according to the present application;
fig. 4 is a schematic view of a noise reduction module of the range hood according to the present application;
fig. 5 is an exploded view of a noise reduction module of the range hood according to the present application;
FIG. 6 is a cross-sectional view A-A of the noise reduction module of FIG. 4;
FIG. 7 is a B-B cross-sectional view of the noise reduction module of FIG. 4;
fig. 8 is a cross-sectional view of the noise reduction module of fig. 4.
Detailed Description
The application is described in further detail below with reference to the embodiments of the drawings.
Referring to fig. 1 to 3, a near-suction type range hood includes a housing 1 and a cabinet 2 above the housing 1, and for convenience of description, hereinafter, the terms "front", "rear", "left", "right", "up", "down" refer to the direction of a user relative to the range hood when the range hood is in use, and are not limited to the structure.
In the present embodiment, the housing 1 includes the first side plates 11 on the left and right sides, and the front end surfaces of the first side plates 11 are inclined rearward gradually from top to bottom so as to be inclined toward the front side of the user. A top plate 12 is provided at the top end between the two first side plates 11, and a rear side plate 13 is provided at the rear end between the two first side plates 11. A panel 14 is arranged between the front ends of the two first side plates 11, the panel 14 comprises a first panel 141 positioned above and a second panel 142 positioned below, a smoke baffle 15 is arranged between the first panel 141 and the second panel 142, the smoke baffle 15 can be rotated upwards to be opened when the range hood works, an air inlet of the range hood is formed between the first panel 141 and the second panel 142, and accordingly, the oil smoke can enter the shell 1 from the air inlet at the opening position of the smoke baffle 15. The filter 16 is provided at a position corresponding to the smoke screen 15 inside the housing 1, for example, the filter 16 may be provided inside the panel 14, fixed to the panel 14, or the filter 16 may be provided at an air inlet of a fan system (to be described in detail later). A bottom plate 17 is connected between the bottom of the housing 1, the bottom of the rear side plate 13 and the bottom of the face plate 14. The first side panel 11, top panel 12, rear side panel 13, face panel 14, smoke barrier 15 and bottom panel 17 together define a cavity within the housing 1.
The chassis 2 includes four second side plates 21, so as to enclose a square or rectangular cross-section box structure, and the bottom of the chassis 2 is opened, so that the oil smoke can enter the chassis 2 after entering the cavity in the casing 1.
An oil cup 3 is arranged below the bottom plate 17 of the shell 1.
The fan system is arranged in a cavity formed by the shell 1 and the case 2, in this embodiment, the fan system is a ternary fan 4, the ternary fan 4 can adopt the fan structure disclosed in the patent with the application number 201620102790.9 of the inventor, and an air outlet of the ternary fan 4 is provided with an air outlet cover 5 for discharging the oil smoke discharged by the ternary fan 4 to an air outlet pipeline. The air inlet 41 of the ternary fan 4 faces forwards, corresponds to the smoke baffle 15 (namely, the air inlet of the range hood), and is obliquely arranged in a cavity formed by the shell 1 and the machine case 2 in the horizontal direction, namely, part of the ternary fan 4 is positioned in the shell 1, and the rest part of the ternary fan is positioned in the machine case 2. The three-way fan 4 is arranged in such a way, not only has a shorter flow passage (close to the air inlet of the range hood), but also is close to the air outlet pipeline, so that the eddy current loss generated by air flow separation in the impeller of the three-way fan 4 is greatly reduced, and the impeller efficiency is improved.
In order to enable the oil smoke to be better guided into the three-way fan, an air deflector 6 is arranged between the front side of the three-way fan 4 and the panel 14, and the air deflector 6 comprises a main body 61, side air deflectors 62 positioned on the left side and the right side of the main body 61, a top air deflector 63 positioned on the top of the main body 61 and a bottom air deflector 64 positioned on the bottom of the main body 61. The main body 61 is plate-shaped, and the inclination direction of the main body 61 can be consistent with that of the ternary fan 4, and the shape and the size of the main body 61 are matched with the section of a cavity formed in the shell 1. The main body 61 is provided with an air guide hole 611, and the shape, the size and the position of the air guide hole 611 are matched with the air inlet of the ternary fan 4; the side air guide plates 62 are formed by bending both sides of the main body 61 toward the panel 14, and are connected and fixed to the panel 14; the top air deflector 63 is formed by bending the top of the main body 61 toward the panel 14, and is fixedly connected with the panel 14; the bottom deflector 64 is formed by bending the bottom of the main body 61 toward the panel 14, and is fixedly connected to the panel 14. Thus, the shape of the air deflector 6 forms a smoke collecting cavity, and the smoke diffused from the panel 14 into the shell 1 can be guided to the three-way fan 4, so that the smoking efficiency is improved. The air deflector 6 increases the centrifugal boosting effect of the front side of the ternary fan 4 and reduces the pressure loss.
Because the noise of the three-way fan 4 is large and the noise frequency band is wide, the noise reduction module 7 is preferably arranged below the three-way fan 4 in the cavity of the casing 1, referring to fig. 4-8, the noise reduction module 7 comprises a left baffle 711, a right baffle 712, a front baffle 713, a rear baffle 714, a bottom baffle 715 and a top baffle 716, the width of the top baffle 716 in the front and rear directions is larger than that of the bottom baffle 715, the front baffle 713 is gradually inclined backwards from top to bottom, the left baffle 711 and the right baffle 712 are in a general triangle shape, and the sound absorption back cavity formed by the plates is in a general triangle column shape (the upper part is large and the lower part is small). The top baffle 716 gradually slopes upward from front to back, consistent with the slope of the bottom of the tertiary fan 4, and preferably, the top baffle 716 is near or against the bottom of the tertiary fan 4.
The noise reduction module 7 further comprises an intermediate partition 72, a first chamber partition 73 and a second chamber partition 74. The middle partition 72 is disposed in the sound absorbing back chamber and divides the sound absorbing back chamber into a first chamber 751 located at the left side and a second chamber 752 located at the right side. Preferably, the middle barrier 72 may be parallel to the left barrier 711 or the right barrier 712, and the first and second chambers 751 and 752 into which the middle barrier 72 is partitioned are equal.
The first chamber partitions 73 are disposed in the first chamber 751, including at least two, each first chamber partition 73 extending between the left baffle 711 and the middle baffle 72, and each first chamber partition 73 being bent back toward the rear baffle 714 while extending obliquely downward a distance from the top baffle 716 from front to rear. One of the first chamber partitions 73 is located below the other first chamber partition 73, whereby each of the baffles and the first chamber partitions 73 divide the interior of the first chamber 751 into at least three first resonance chambers 761 from top to bottom.
A second chamber divider 74 is disposed within the second chamber 752, including at least one, the second chamber divider 74 extending between the middle divider 72 and the right baffle 712. One of the second chamber baffles 74 may extend from the top baffle 716 in a downward bend in sections parallel with the front baffle 713, the rear baffle 714, and the bottom baffle 715, respectively, thereby dividing the second chamber 752 into two second resonant cavities 762, i.e., one second resonant cavity 762 between the second chamber baffles 74, the top baffle 716, the middle baffle 72, and the right baffle 712, with the remainder constituting the other second resonant cavity 762. A further second chamber partition 74 may be provided in the further chamber 762, in the form of a flat plate, extending between the middle partition 72 and the right baffle 712, thereby bisecting the further second chamber 762.
The top baffle 716 is provided with at least two first sound absorbing holes 771 and at least two second sound absorbing holes 772, the first sound absorbing holes 771 and the second sound absorbing holes 772 are distributed above the first chamber 751 and the second chamber 752, preferably, the first sound absorbing holes 771 may be in an array shape and are distributed on the surface of the top baffle 716, and the second sound absorbing holes 772 are arranged on the surface of the top baffle 716 in a staggered manner. The first sound absorption holes 771 may be circular holes, square holes, hexagonal holes, etc., and the aperture is 0.5 mm-1 mm, because the noise reduction module 7 is close to or clung to the ternary fan 4, the space between the noise reduction module 7 and the ternary fan 4 is extremely small, the noise frequency band is extremely wide, and only the diameter of the first sound absorption holes 771 is reduced within the above range, the noise reduction module 7 can reach the sound absorption frequency band limit. The second sound absorbing holes 772 have a larger aperture than the first sound absorbing holes 771.
The top baffle 716 is attached with sound absorbing cotton 78, and the sound absorbing cotton 78 is provided with a third sound absorbing hole 773 matched with the second sound absorbing hole 772, so that the sound absorbing cotton is matched with the sound absorbing back cavity to increase the sound absorption coefficient of low-frequency noise.
Because the left side position is mainly high-frequency noise on the noise propagation path below the three-way fan 4, the cavity volume of the first resonant cavity 761 is smaller than that of the second resonant cavity 762, that is, the first resonant cavity 761 can increase the sound absorption coefficient of the high-frequency noise, and the second resonant cavity 762 is a half-open space to increase the sound absorption coefficient of the medium-frequency noise. Such a labyrinth resonant cavity also increases the sound absorption bandwidth of the sound absorbing cotton 78.
Alternatively, the first chamber partition 73 and the second chamber partition 74 may have other shapes as long as the spaces in the first chamber 751 and the second chamber 752 are partitioned, and each of the partitioned resonance chambers may be a rectangular parallelepiped, a cylinder, a cone, an irregularity, or the like. In addition, the surfaces of the sound absorption back cavity and the resonance cavities can be adhered with sound absorption cotton.
In order to reduce the frequency of the absorbed noise, reduce the diameter of the micropores, increase the distance between adjacent micropores, increase the height of the resonant cavities, the maximum interval between the sound absorption holes should preferably be one fifth of the wavelength of the corresponding sound wave, preferably 8-50 mm, and the maximum interval is 70mm, and the height of each resonant cavity should preferably be one third of the wavelength of the corresponding sound wave.
Through the arrangement mode, the ternary fan 4 is closely adjacent to the noise reduction module 7, so that the ternary fan 4 has a good effect of inhibiting radiation noise, and is compact in structure. The structure of the noise reduction module 7 greatly improves the sound absorption frequency bands and can effectively absorb the noise of each frequency band.
At least one first oil drop hole 7151 is formed in the bottom plate 715, and a second oil drop hole 171 (which may or may not correspond to the first oil drop hole 7151) is formed in the bottom plate 17 of the housing 1, and the position of the oil drop hole corresponds to the position of the oil cup 3. Thus, even if the separated grease enters the noise reduction module 7, the grease can be discharged to the oil cup 3 through the first oil drop hole 7151 and the second oil drop hole 171 so as not to influence the noise reduction effect of the noise reduction module 7.
Claims (9)
1. The utility model provides a near-suction type range hood, includes casing (1), quick-witted case (2) and fan system that are located casing (1) top, the front side of casing (1) is formed with air intake, its characterized in that: the fan system is a ternary fan (4), the ternary fan (4) is obliquely arranged in a cavity formed by the shell (1) and the machine case (2) together in the horizontal direction, an air inlet (41) of the ternary fan (4) corresponds to an air inlet on the shell (1), and a noise reduction module (7) for reducing noise generated by the ternary fan (4) is arranged in the shell (1);
the noise reduction module (7) is arranged below the ternary fan (4) and is close to or clung to the ternary fan (4), and the noise reduction module (7) comprises a plurality of baffles forming a sound absorption back cavity and sound absorption holes formed in the top of the sound absorption back cavity.
2. The near suction type range hood according to claim 1, wherein: the baffle forming the sound absorption back cavity of the noise reduction module (7) comprises a left baffle (711), a right baffle (712), a front baffle (713), a rear baffle (714), a bottom baffle (715) and a top baffle (716), the width of the top baffle (716) in the front and rear directions is larger than that of the bottom baffle (715), the top baffle (716) is gradually inclined upwards from front to rear, and the sound absorption Kong Kaishe is on the top baffle (716).
3. The near suction type range hood according to claim 1, wherein: the sound absorption back cavity is internally provided with a middle partition board (72) and is divided into a first cavity (751) and a second cavity (752) which are positioned at the left side and the right side, the first cavity (751) is internally provided with a first cavity partition board (73) and divides the first cavity (751) into at least two first resonance cavities (761), the second cavity (752) is internally provided with a second cavity partition board (74) and divides the second cavity (752) into at least two second resonance cavities (762).
4. A near suction range hood according to claim 3, wherein: the first resonant cavity (761) has a smaller cavity volume than the second resonant cavity (762).
5. The near suction type range hood according to claim 1, wherein: the sound absorption holes comprise at least two first sound absorption holes (771), and the aperture of each first sound absorption hole (771) is 0.5 mm-1 mm.
6. The near suction type range hood according to claim 5, wherein: the sound absorbing holes further comprise at least two second sound absorbing holes (772), and the aperture of the second sound absorbing holes (772) is larger than that of the first sound absorbing holes (771).
7. The near suction type range hood according to claim 6, wherein: the baffle at the top of the noise reduction module (7) is adhered with sound absorption cotton (78), and a third sound absorption hole (773) matched with the second sound absorption hole (772) is formed in the sound absorption cotton (78).
8. The near suction range hood according to any one of claims 1 to 7, wherein: the oil cup (3) is arranged below the bottom of the shell (1), at least one first oil dropping hole (7151) is formed in the bottom of the noise reduction module (7), a second oil dropping hole (171) is formed in the bottom of the shell (1), and the first oil dropping hole (7151) and the second oil dropping hole (171) correspond to the oil cup (3).
9. The near suction range hood according to any one of claims 1 to 7, wherein: the front side of ternary fan (4) is provided with aviation baffle (6), aviation baffle (6) include main part (61) with cavity adaptation in casing (1), the periphery of main part (61) is buckled to the front side of casing (1) and is formed and draw in the cigarette chamber, offer on main part (61) with air guide mouth (611) of the air intake (41) adaptation of ternary fan (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923537.9A CN109595626B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710923537.9A CN109595626B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595626A CN109595626A (en) | 2019-04-09 |
| CN109595626B true CN109595626B (en) | 2023-11-17 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710923537.9A Active CN109595626B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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| Country | Link |
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| CN (1) | CN109595626B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110375345B (en) * | 2019-06-20 | 2020-10-27 | 宁波方太厨具有限公司 | Side-draft range hood |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228222A (en) * | 2001-02-01 | 2002-08-14 | Yamazen:Kk | Range hood |
| CN101545651A (en) * | 2009-03-27 | 2009-09-30 | 武汉创新环保工程有限公司 | Wall-hung thin type lampblack depurating machine |
| CN101705949A (en) * | 2009-10-30 | 2010-05-12 | 美的集团有限公司 | Centrifugal fan volute of range hood |
| CN201527014U (en) * | 2009-10-10 | 2010-07-14 | 宁波方太厨具有限公司 | Range hood of underlying fan system arranged obliquely |
| CN106051870A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Top suction and side suction mixed range hood |
| CN206222406U (en) * | 2016-10-13 | 2017-06-06 | 中山西德森环保电器科技有限公司 | A kind of oblique-arm type range hood |
| CN207230686U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of near-suction type oil smoke suction machine |
-
2017
- 2017-09-30 CN CN201710923537.9A patent/CN109595626B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002228222A (en) * | 2001-02-01 | 2002-08-14 | Yamazen:Kk | Range hood |
| CN101545651A (en) * | 2009-03-27 | 2009-09-30 | 武汉创新环保工程有限公司 | Wall-hung thin type lampblack depurating machine |
| CN201527014U (en) * | 2009-10-10 | 2010-07-14 | 宁波方太厨具有限公司 | Range hood of underlying fan system arranged obliquely |
| CN101705949A (en) * | 2009-10-30 | 2010-05-12 | 美的集团有限公司 | Centrifugal fan volute of range hood |
| CN106051870A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Top suction and side suction mixed range hood |
| CN206222406U (en) * | 2016-10-13 | 2017-06-06 | 中山西德森环保电器科技有限公司 | A kind of oblique-arm type range hood |
| CN207230686U (en) * | 2017-09-30 | 2018-04-13 | 宁波方太厨具有限公司 | A kind of near-suction type oil smoke suction machine |
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| Publication number | Publication date |
|---|---|
| CN109595626A (en) | 2019-04-09 |
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