CN109595650B - Near-suction type range hood - Google Patents
Near-suction type range hood Download PDFInfo
- Publication number
- CN109595650B CN109595650B CN201710924547.4A CN201710924547A CN109595650B CN 109595650 B CN109595650 B CN 109595650B CN 201710924547 A CN201710924547 A CN 201710924547A CN 109595650 B CN109595650 B CN 109595650B
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- fan
- baffle
- cavity
- range hood
- sound absorption
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- 230000009467 reduction Effects 0.000 claims abstract description 34
- 238000010521 absorption reaction Methods 0.000 claims description 46
- 238000005192 partition Methods 0.000 claims description 19
- 229920000742 Cotton Polymers 0.000 claims description 12
- 238000005452 bending Methods 0.000 claims description 9
- 230000006978 adaptation Effects 0.000 claims description 4
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- 239000000779 smoke Substances 0.000 abstract description 16
- 230000000391 smoking effect Effects 0.000 abstract description 4
- 230000000694 effects Effects 0.000 description 6
- 239000004519 grease Substances 0.000 description 3
- 238000010411 cooking Methods 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 230000004888 barrier function 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
- 238000000926 separation method Methods 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
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/665—Sound attenuation by means of resonance chambers or interference
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Soundproofing, Sound Blocking, And Sound Damping (AREA)
- Ventilation (AREA)
Abstract
The invention 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 vertically arranged in the case, and a noise reduction module for reducing noise generated by the ternary fan is arranged in the case. 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 ternary fan is vertically arranged in the case, so that direct suction and direct discharge are realized, a negative pressure area is concentrated, the resistance of a pipeline is reduced, smoke is discharged more smoothly, and a noise source is far away from a user; 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 invention 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 invention 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 vertically arranged in the case, and a noise reduction module for reducing noise generated by the ternary fan is arranged in the case.
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 at the bottom of the shell, 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 1-5 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 first sound absorption cotton is attached to a baffle plate at the top of the noise reduction module, and a third sound absorption hole matched with the second sound absorption hole is formed in the first 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 and 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.
For further reducing noise on the noise propagation path of ternary fan, the part of main part in the casing is buckled backward a certain distance and is inclined downwards and buckle and form the kink, the kink is located the below of ternary fan, the left and right sides of aviation baffle and the rear side of kink is located the position of ternary fan below and has pasted the second and inhale the sound cotton.
In order to widen the sound absorption bandwidth, the bottom of the bending part of the main body extends downwards and forwards in an inclined mode to form a cover plate, and the cover plate is close to or clung to the top of the noise reduction module.
Compared with the prior art, the invention 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 ternary fan is vertically arranged in the case, so that an air inlet channel at the front side of the ternary fan is increased, the resistance of a pipeline is reduced, smoke is discharged more smoothly, and a noise source is far away from a user; 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 invention;
fig. 2 is a sectional view of the range hood of the present invention;
fig. 3 is an exploded structure view of the range hood according to the present invention;
fig. 4 is a schematic view of a noise reduction module of the range hood according to the present invention;
fig. 5 is an exploded view of a noise reduction module of the range hood according to the present invention;
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 invention 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 three-way fan 4 is arranged in a cavity formed by the shell 1 and the case 2 together, the three-way fan 4 can adopt the prior art, as a fan structure disclosed in the patent with the application number of 201620102790.9 of the applicant, and an air outlet of the three-way fan 4 is provided with an air outlet cover 5 for discharging oil smoke exhausted by the three-way fan 4 to an air outlet pipeline. The air inlet 41 of the three-way fan 4 is directed forward and vertically placed in the cabinet 2. The ternary fan 4 is arranged in a lifting manner in this way, so that direct suction and direct discharge are realized, an air inlet channel at the front side of the ternary fan is increased, the pipeline resistance is reduced, smoke discharge is smoother, and a noise source is far away from a user.
In order to enable the oil smoke to be better guided into the three-way fan, an air deflector 6 is arranged between 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 and a top air deflector 63 positioned on the top of the main body 61. The main body 61 is plate-shaped, the main body 61 is arranged in the shell 1 and the case 2, the main body 61 is provided with a wind guide hole 611, the shape, the size and the position of the wind guide hole 611 are matched with those of the wind inlet of the ternary fan 4, the main body 61 is bent backwards for a certain distance in the shell 1 and then is bent downwards in an inclined way to form a bending part 612, and the bending part 612 of the main body 61 is positioned below the ternary fan 4; the side air guide plate 62 is formed by bending both sides of a part of the lower part of the main body 61 in the shell 1 towards the direction of the panel 14, and is fixedly connected with the panel 14; the top air deflector 62 is formed by bending the top of the main body 61 toward the second side plate 21 on the front side of the cabinet 2, and is fixedly connected to the second side plate 21. The air deflector 6 further includes a cover plate 64 extending obliquely downward and forward from the bottom of the bent portion 612 of the main body 61, the cover plate 64 extending to be close to the panel 14. Thus, the air deflector 6 forms a smoke collecting cavity, and can guide the oil smoke diffused from the panel 14 into the shell 1 to the three-way fan 4, thereby improving smoking efficiency. 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 arranged below the three-way fan 4 in the shell 1, and 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 cylinder shape. The top baffle 716 is inclined gradually upward from front to back, in line with the inclination of the cover plate 64, and preferably the top baffle 716 is adjacent to or in close proximity to the cover plate 64 of the air deflector 6.
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, and preferably, the middle partition 72 may be parallel to the left baffle 711 or the right baffle 712, and the first chamber 751 and the second chamber 752 into which the middle partition 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 baffles 73 is positioned below the other first chamber baffle 73, whereby each baffle and first chamber baffle 73 divides the interior of the first chamber 751 into at least three first resonant chambers 761.
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. with a diameter of 1 mm-5 mm, because the noise reduction module 7 is close to or closely attached to the cover plate 64, and has a certain distance from the three-way fan 4, the noise frequency band is wider, and only if the diameter of the first sound absorption holes 771 is reduced within the above range, the noise reduction module 7 can reach the frequency band limit. The second sound absorbing holes 772 have a diameter larger than that of the first sound absorbing holes 771.
The top baffle 716 is attached with a first sound absorbing cotton 781, and a third sound absorbing hole 773 matched with the second sound absorbing hole 772 is formed in the first sound absorbing cotton 781, so that the sound absorption coefficient of low-frequency noise is increased. The top baffle 716, the first sound absorbing cotton 781, and the cover plate 64 may be attached to each other. A second sound absorbing cotton 782 may be attached to the outer side of the side air guide plate 62 of the air guide plate 6 (left and right sides of the air guide plate 6) and the rear side of the bent portion 612 of the main body 61 of the air guide plate 6 at a position below the three-way fan 4, to further reduce noise on the noise propagation path of the three-way fan 4.
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-type resonant cavity also increases the sound absorption bandwidth of the first sound absorbing cotton 781.
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 (11)
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 vertically arranged in the case (2), 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 positioned at the bottom of the shell (1), 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 1-5 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 first sound absorption cotton (781), and a third sound absorption hole (773) matched with the second sound absorption hole (772) is formed in the first sound absorption cotton (781).
8. The near suction type 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 type 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).
10. The near suction range hood of claim 9, wherein: the main body (61) is bent backwards for a certain distance in the shell (1) and then is bent downwards in an inclined mode to form a bending part (612), the bending part (612) is located below the three-way fan (4), and second sound absorbing cotton (782) is attached to the left side and the right side of the air deflector (6) and the position, located below the three-way fan (4), of the rear side of the bending part (612).
11. The near suction range hood of claim 9, wherein: the bottom of the bending part (612) of the main body (61) extends downwards and forwards in an inclined mode to form a cover plate (64), and the cover plate (64) is close to or clung to the top of the noise reduction module (7).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710924547.4A CN109595650B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710924547.4A CN109595650B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109595650A CN109595650A (en) | 2019-04-09 |
| CN109595650B true CN109595650B (en) | 2024-01-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710924547.4A Active CN109595650B (en) | 2017-09-30 | 2017-09-30 | Near-suction type range hood |
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| Country | Link |
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| CN (1) | CN109595650B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11566564B2 (en) * | 2020-07-08 | 2023-01-31 | Raytheon Technologies Corporation | Acoustically treated panels |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210270Y (en) * | 1994-09-27 | 1995-10-18 | 西安交通大学 | Guiding flow and sound-adsorption device for centrifugal fan |
| CN201539907U (en) * | 2009-11-09 | 2010-08-04 | 浙江帅康电气股份有限公司 | Side-draft range hood |
| CN202709239U (en) * | 2012-06-28 | 2013-01-30 | 浙江苏泊尔家电制造有限公司 | Non-stick oil extractor hood |
| JP2016118333A (en) * | 2014-12-22 | 2016-06-30 | パナソニックＩｐマネジメント株式会社 | Range hood |
| CN106322474A (en) * | 2016-08-28 | 2017-01-11 | 杭州老板电器股份有限公司 | Flow-guiding, sound-absorbing and three-dimensional noise-reducing system of kitchen ventilator |
| CN207230678U (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 CN201710924547.4A patent/CN109595650B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2210270Y (en) * | 1994-09-27 | 1995-10-18 | 西安交通大学 | Guiding flow and sound-adsorption device for centrifugal fan |
| CN201539907U (en) * | 2009-11-09 | 2010-08-04 | 浙江帅康电气股份有限公司 | Side-draft range hood |
| CN202709239U (en) * | 2012-06-28 | 2013-01-30 | 浙江苏泊尔家电制造有限公司 | Non-stick oil extractor hood |
| JP2016118333A (en) * | 2014-12-22 | 2016-06-30 | パナソニックＩｐマネジメント株式会社 | Range hood |
| CN106322474A (en) * | 2016-08-28 | 2017-01-11 | 杭州老板电器股份有限公司 | Flow-guiding, sound-absorbing and three-dimensional noise-reducing system of kitchen ventilator |
| CN207230678U (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 |
Also Published As
| Publication number | Publication date |
|---|---|
| CN109595650A (en) | 2019-04-09 |
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