CN207230686U - A kind of near-suction type oil smoke suction machine - Google Patents
A kind of near-suction type oil smoke suction machine Download PDFInfo
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- CN207230686U CN207230686U CN201721290579.5U CN201721290579U CN207230686U CN 207230686 U CN207230686 U CN 207230686U CN 201721290579 U CN201721290579 U CN 201721290579U CN 207230686 U CN207230686 U CN 207230686U
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- housing
- wind turbine
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- 239000000779 smoke Substances 0.000 title claims abstract description 33
- 238000010521 absorption reaction Methods 0.000 claims description 22
- 238000005192 partition Methods 0.000 claims description 22
- 229920000742 Cotton Polymers 0.000 claims description 8
- 230000001050 lubricating effect Effects 0.000 claims description 6
- 239000000203 mixture Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 230000000391 smoking effect Effects 0.000 abstract description 4
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 2
- 238000000354 decomposition reaction Methods 0.000 description 2
- 239000004519 grease Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 230000000930 thermomechanical effect Effects 0.000 description 1
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- Soundproofing, Sound Blocking, And Sound Damping (AREA)
Abstract
The utility model discloses a kind of near-suction type oil smoke suction machine, including housing, cabinet and blower fan system above housing, the front side of the housing is formed with air inlet, it is characterised in that：The blower fan system is ternary wind turbine, the ternary wind turbine is in obliquely to be arranged in horizontal direction in the cavity that the housing and cabinet collectively form, the air inlet of the ternary wind turbine is corresponding with the air inlet on housing, and the noise reduction module of the noise for reducing the generation of ternary wind turbine is provided with the housing., can be so that smoking efficiency be significantly lifted by using ternary wind turbine by using ternary wind turbine；And ternary wind turbine is tilting in housing and cabinet, not only there is shorter runner, and also it is also near apart from wind pipe, it therefore, greatly reducing in the impeller of ternary wind turbine because the eddy current loss that air-flow separates and produces, improve impeller adiabatic efficiency；By setting noise reduction module, the full frequency band noise of high frequency, intermediate frequency and low frequency can be absorbed, avoids influencing the normal use of range hood.
Description
Technical field
Machine for kitchen use is the utility model is related to, especially a kind of near-suction type oil smoke suction machine.
Background technology
Range hood becomes one of machine for kitchen use equipment indispensable in Modern Family.Usual range hood includes top
Suction and near-absorption type, wind pressure is remote using being vortexed for the range hood of near-absorption type, by the major part oil smoke nearer apart from hearth with arc
Line form absorbs, and can reduce the harmful effect to health, and power source is nearer from hearth, will not substantially reduce power
The suction effect in source.
A kind of range hood as disclosed in the Chinese patent of Application No. 201710090915.X, including shell, partition plate and
Fan assembly, partition plate are located at enclosure and enclosure are divided into the front side chamber and rear side chamber arranged along the longitudinal direction
Room, partition plate are equipped with main air inlet, and fan assembly is supported on partition plate, and at least part fan assembly is located in rear side chamber, wind
The inlet air port of thermomechanical components is located at main air inlet and sentences and front side chamber.
The scheme of the prior art as described above, generally use for multi-wing centrifugal fan, and multi-wing centrifugal fan is put
In lower triangle, in order to ensure higher air intake efficiency, the volume of blower fan system can be bigger, and this arrangement side of wind turbine
Formula, effect and gas are prewhirled to gas due to impeller can the side of being altered in steps in 90 ° of steering procedures are carried out in flowing into impeller
To simple self-consistentency inlet and outlet angle is unfavorable for the actual acting ability of impeller；In addition, wind turbine is apart from discharge pipe
Track pitch is from remote, it is difficult to overcomes the resistance of ducting, wind turbine faces user directly, lacks noise reduction measure, and noise is higher.
Utility model content
Technical problem to be solved in the utility model is in view of the above-mentioned problems of the prior art, providing a kind of improve
Smoking efficiency, the near-suction type oil smoke suction machine for reducing noise.
Technical solution is used by the utility model solves above-mentioned technical problem：A kind of near-suction type oil smoke suction machine, including
Housing, cabinet and blower fan system above housing, the front side of the housing is formed with air inlet, it is characterised in that：Institute
It is ternary wind turbine to state blower fan system, and the ternary wind turbine is in that the common structure of housing and cabinet is obliquely arranged in horizontal direction
Into cavity in, the air inlet of the ternary wind turbine is corresponding with the air inlet on housing, is provided with the housing for reducing
The noise reduction module for the noise that ternary wind turbine produces.
Preferably, noise reduction module is arranged on the noise transmission path of ternary wind turbine, so that noise is preferably reduced, it is described
Noise reduction module is arranged on the lower section of ternary wind turbine and close or be close to ternary wind turbine, and the noise reduction module includes forming the sound absorption back of the body
Multiple baffles of chamber and the sound-absorbing hole for being opened in sound absorption back of the body top of chamber.
Preferably, for ease of being arranged in housing, the cavity geometry of housing, the composition sound absorption back of the body of the noise reduction module are adapted to
The baffle of chamber includes right baffle-plate, right shell body, front apron, rear baffle, bottom baffle and top baffle, and the top baffle is in front and rear direction
On width be more than bottom baffle, the top baffle is gradually inclined upwardly from front to back, and the sound-absorbing hole is opened in the top baffle
On.
In order to be played a role to the noise in wider frequency section, the sound absorption back of the body intracavitary is provided with intermediate bulkhead and separates
Into the first chamber and second chamber positioned at arranged on left and right sides, first chamber partition plate is provided with the first chamber and by first
Chamber is separated at least two first resonant cavities, is provided with second chamber partition plate in the second chamber and separates second chamber
Into at least two second resonant cavities.
To increase the acoustic absorptivity of high-frequency noise, the cavity volume of first resonant cavity is less than the second resonant cavity.
To cause noise reduction module to reach the sound absorption frequency range limit, the sound-absorbing hole includes at least two first sound-absorbing hole, described
The aperture of first sound-absorbing hole is 0.5mm~1mm.
To widen sound absorption frequency range, the sound-absorbing hole further includes at least two second sound-absorbing hole, the hole of second sound-absorbing hole
Footpath is more than the first sound-absorbing hole.
To increase the acoustic absorptivity of low-frequency noise, acoustical cotton, the suction have been attached on the baffle at the top of the noise reduction module
Offered on sound cotton and matched 3rd sound-absorbing hole of the second sound-absorbing hole.
Noise reduction is influenced to avoid grease from entering noise reduction module after separating, the bottom part down of the housing is provided with lubricating cup, institute
State and at least one first oil dripping hole is offered on the bottom of noise reduction module, the bottom of the housing offers the second oil dripping hole, institute
It is corresponding with lubricating cup to state the first oil dripping hole, the second oil dripping hole.
In order to which oil smoke is preferably inducted into ternary wind turbine, increase the centrifugation supercharging effect on front side of ternary wind wind turbine, drop
Low pressure loss, wind deflector is provided with front side of the ternary wind turbine, and the wind deflector includes what is be adapted to the cavity in housing
Main body, the periphery of the main body bend to the front side of housing and are formed and hold together smoke chamber, offered and ternary wind turbine in the main body
The air guide hole of air inlet adaptation.
Compared with prior art, the utility model has the advantage of：By using ternary wind turbine, blower fan structure is compact, ruler
Very little relatively small, fan efficiency and wind pressure are high, and the suction gradient of generation is big, can be so that smoking efficiency is significantly lifted；And by three
First wind turbine is tilting in housing and cabinet, not only has shorter runner, but also also near apart from wind pipe, therefore, greatly
Reduce in the impeller of ternary wind turbine because the eddy current loss that air-flow separates and produces, improve impeller adiabatic efficiency；Dropped by setting
Make an uproar module, the full frequency band noise of high frequency, intermediate frequency and low frequency can be absorbed, avoid influencing the normal use of range hood.
Brief description of the drawings
Fig. 1 is the schematic diagram of the range hood of the utility model；
Fig. 2 is the sectional view of the range hood of the utility model；
Fig. 3 is the decomposition texture schematic diagram of the range hood of the utility model；
Fig. 4 is the noise reduction module schematic diagram of the range hood of the utility model；
Fig. 5 is the decomposition texture schematic diagram of the noise reduction module of the range hood of the utility model；
Fig. 6 is the sectional view along A-A of the noise reduction module of Fig. 4；
Fig. 7 is the B-B direction sectional view of the noise reduction module of Fig. 4；
Fig. 8 is the cross section view of the noise reduction module of Fig. 4.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Referring to Fig. 1~Fig. 3, a kind of near-suction type oil smoke suction machine, including housing 1 and the cabinet 2 above housing 1, for just
In description, hereinafter, "front", "rear", "left", "right", " on ", " under " each mean that user when using range hood, inhales
Kitchen ventilator and does not limit structure relative to the orientation of user.
In the present embodiment, housing 1 includes the first side plate 11 positioned at arranged on left and right sides, the front end face of the first side plate 11 by
Gradually tilted backwards up to lower, thus towards the front side of user be inclined plane.Top between two the first side plates 11 is set
There is a top plate 12, the rear end between two the first side plates 11 is provided with back side panel 13.It is provided between two 11 front ends of the first side plate
Panel 14, panel 14 include first panel 141 and underlying second panel 142 above, first panel 141 and
Be provided with gear smoke background 15 between two panels 142, gear smoke background 15 can be rotated up when range hood work open and the
The air inlet of range hood is formed between one panel 141 and second panel 142, so that oil smoke can be from 15 open position of gear smoke background
Air inlet is entered in housing 1.The inner side of housing 1, with keeping off 15 corresponding position of smoke background be provided with strainer 16, and e.g., strainer 16 can be with
It is arranged on the inner side of panel 14, fixed with panel 14, (will be retouched in detail below alternatively, strainer 16 can also be arranged on blower fan system
State) air inlet.The bottom of housing 1,13 bottom of back side panel and panel are connected with bottom plate 17 between 14 bottom.Above-mentioned first side
Plate 11, top plate 12, back side panel 13, panel 14, gear smoke background 15 and bottom plate 17 collectively define the cavity in housing 1.
Cabinet 2 includes four the second side plates 21, so as to surround the body structure that cross section is square or rectangular, cabinet
2 bottom opening, so that after oil smoke enters in the cavity in housing 1, can enter in cabinet 2.
The lower section of bottom plate 17 of housing 1 is provided with lubricating cup 3.
Blower fan system is arranged in the cavity that housing 1 and cabinet 2 collectively form, in the present embodiment, blower fan system three
First wind turbine 4, ternary wind turbine 4 can use the prior art, as the Application No. 201620102790.9 of the applicant patent in institute
Disclosed blower fan structure, the air outlet of ternary wind turbine 4 are provided with outlet housing 5, and the oil smoke discharge for ternary wind turbine 4 to be discharged arrives
Wind pipe.The air inlet 41 of ternary wind turbine 4 is corresponding with gear smoke background 15 (i.e. the air inlet of range hood) before, and is in
Obliquely it is placed in horizontal direction in the cavity that housing 1 and cabinet 2 are formed, i.e., 4 part of ternary wind turbine is located in housing 1 and it
Remaining part point is in cabinet 2.Ternary wind turbine 4 is arranged so as to, and not only has shorter runner (near from the air inlet of range hood),
And it is also near apart from wind pipe, therefore, it greatly reducing in the impeller of ternary wind turbine 4 because the whirlpool that air-flow separates and produces
Stream loss, improves impeller adiabatic efficiency.
In order to enable oil smoke can preferably be directed into ternary wind turbine, set between the front side of ternary wind turbine 4, and panel 14
There is wind deflector 6, wind deflector 6 includes main body 61, the side wind deflector 62 positioned at the left and right sides of main body 61, positioned at the top at the top of main body 61
Wind deflector 63 and the bottom wind deflector 64 positioned at 61 bottom of main body.Wherein, main body 61 is plate-like, and incline direction can be with ternary wind
Machine 4 is consistent, and shape, the size of main body 61 are adapted to the section of the cavity of formation in housing 1.Air guide hole is offered in main body 61
611, the shape of air guide hole 611, size, position are adapted to the air inlet of ternary wind turbine 4；Side wind deflector 62 is by 61 both sides court of main body
Bend and formed to 14 direction of panel, and fixation is connected with panel 14；Wind deflector 63 is pushed up by the top of main body 61 towards panel 14
Direction bends and is formed, and is connected fixation with panel 14；Bottom wind deflector 64 is bent by 61 bottom of main body towards 14 direction of panel
And formed, and it is connected fixation with panel 14.Thus, shape as wind deflector 6 forms smoke chamber, can will from panel 14 into
The oil smoke for entering diffusion in housing 1 is guided to ternary wind turbine 4, improves smoking efficiency.Wind deflector 6 increases the front side of ternary wind turbine 4
Supercharging effect is centrifuged, reduces the pressure loss.
Since the noise of ternary wind turbine 4 is larger, and noise frequency range is wide, in the cavity of housing 1, is preferably located at ternary wind turbine
4 lower section is provided with noise reduction module 7, referring to Fig. 4~8, noise reduction module 7 include right baffle-plate 711, right shell body 712, front apron 713,
Rear baffle 714, bottom baffle 715 and top baffle 716, width of the top baffle 716 in front and rear direction are more than bottom baffle 715, front
Plate 713 from top to bottom gradually tilts backwards, and right baffle-plate 711 and right shell body 712 are in triangle substantially, and thus above-mentioned each plate is common
The sound absorption back of the body chamber of composition is in triangulo column (up big and down small) substantially.Top baffle 716 is gradually inclined upwardly from front to back, with ternary
The incline direction of 4 bottom of wind turbine is consistent, and preferably, top baffle 716 is close or is close to the bottom of ternary wind turbine 4.
Noise reduction module 7 further includes intermediate bulkhead 72, first chamber partition plate 73 and second chamber partition plate 74.Intermediate bulkhead 72 is set
Put and carry on the back intracavitary in sound absorption, and sound absorption back of the body chamber is divided into the first chamber 751 positioned at left side and the second chamber positioned at right side
752.Preferably, intermediate bulkhead 72 can be parallel with right baffle-plate 711 or right shell body 712, the first chamber that intermediate bulkhead 72 is separated into
Room 751 and second chamber 752 are equal.
First chamber partition plate 73 is arranged in first chamber 751, including at least two, each first chamber partition plate 73 is on a left side
Extend between baffle 711 and intermediate bulkhead 72, and each first chamber partition plate 73 from top baffle 716 from front to back diagonally downward
Bent after extending certain distance towards rear baffle 714.One of first chamber partition plate 73 is located at another first chamber partition plate
73 lower section, thus, each baffle and first chamber partition plate 73 will from top to bottom be separated at least three first in first chamber 751
Resonant cavity 761.
Second chamber partition plate 74 is arranged in second chamber 752, including at least one, and second chamber partition plate 74 is at middle interval
Extend between plate 72 and right shell body 712.One of second chamber partition plate 74 can be bent downward from top baffle 716 extend into it is several
Section is parallel with front apron 713, rear baffle 714 and bottom baffle 715 respectively, and second chamber 752 thus is separated into two second and is total to
Shake chamber 762, i.e., second resonant cavity between the second chamber partition plate 74, top baffle 716, intermediate bulkhead 72, right shell body 712
762, remainder then forms another the second resonant cavity 762.Can also set in another resonant cavity 762 another the
Two compartment spacers 74, in tabular, extend between intermediate bulkhead 72 and right shell body 712, thus by another second resonance
Chamber 762 is divided into two.
At least two first sound-absorbing hole 771 and at least two second sound-absorbing hole 772 are offered on top baffle 716, first inhales
771 and second sound-absorbing hole 772 of acoustic aperture is distributed in the top of first chamber 751 and second chamber 752, it is preferred that the first sound absorption
Hole 771 can be in array-like, be covered with the surface of top baffle 716, and 772 surface straggly for being arranged in top baffle 716 of the second sound-absorbing hole.
First sound-absorbing hole 771 can be round hole, square hole, hex hole etc., its aperture is 0.5mm~1mm, this is because noise reduction mould
Block 7 is close or is close to ternary wind turbine 4, causes the spacing between noise reduction module 7 and ternary wind turbine 4 minimum, and noise frequency range is extremely wide, only
Have and reduce the diameter of the first sound-absorbing hole 771 within the above range, noise reduction module 7 could be caused to reach the sound absorption frequency range limit.The
The aperture of two sound-absorbing hole 772 is more than the first sound-absorbing hole 771.
Top baffle 716 has attached acoustical cotton 78 above, is offered on acoustical cotton 78 and the second sound-absorbing hole 772 the matched 3rd
Sound-absorbing hole 773, so as to coordinate the acoustic absorptivity of increase low-frequency noise with sound absorption back of the body chamber.
Due on 4 lower section noise transmission path of ternary wind turbine, leftward position is mainly high-frequency noise, therefore above-mentioned first
The cavity volume of resonant cavity 761 is less than the second resonant cavity 762, i.e. the first resonant cavity 761 can increase the sound absorption system to high-frequency noise
Number, the second resonant cavity 762 is then semi-open space, increases the acoustic absorptivity to mid-frequency noise.This mazy resonant cavity
Add the wide band sound absorption of acoustical cotton 78.
Alternatively, first chamber partition plate 73 and second chamber partition plate 74 can also be other shapes, as long as can separate
Space in one chamber 751 and second chamber 752, each resonant cavity after segmentation can be cuboid, cylinder, cone,
Irregular body etc..In addition, sound absorption back of the body intracavitary, the surface of each resonant cavity can also attach acoustical cotton.
In order to reduce absorbed noise frequency, micro-pore diameter is reduced, increases the spacing between adjacent cells, increase resonance
The height of chamber, the largest interval between each sound-absorbing hole preferably should be 1/5th of corresponding wave length of sound, preferably 8~
50mm, largest interval 70mm, the highly preferred of each resonant cavity should be 1/3rd of corresponding wave length of sound.
By above-mentioned arrangement, ternary wind turbine 4 has very well close to noise reduction module 7 for 4 radiated noise of ternary wind turbine
Inhibitory action, it is and compact-sized.And the structure of noise reduction module 7, sound absorption frequency range greatly improved, can effectively absorb each frequency range
Noise.
At least one first oil dripping hole 7151 is offered on bottom baffle 715, the second oil dripping is offered on the bottom plate 17 of housing 1
Hole 171 (can be corresponding with the first oil dripping hole 7151, can not also correspond to), and the position of above-mentioned oil dripping hole and the position of lubricating cup 3
Put correspondence.Even if thus there is the grease after separation to enter noise reduction module 7, it can also pass through the first oil dripping hole 7151 and the second oil dripping hole
171 are discharged to lubricating cup 3, in order to avoid influence the noise reduction of noise reduction module 7.
Claims (10)
1. a kind of near-suction type oil smoke suction machine, including housing (1), cabinet (2) and blower fan system above housing (1), institute
The front side of housing (1) is stated formed with air inlet, it is characterised in that：The blower fan system is ternary wind turbine (4), the ternary wind turbine
(4) it is in obliquely to be arranged in horizontal direction in the cavity that the housing (1) and cabinet (2) collectively form, the ternary wind turbine
(4) air inlet (41) is corresponding with the air inlet on housing (1), is provided with the housing (1) for reducing ternary wind turbine (4)
The noise reduction module (7) of the noise of generation.
2. near-suction type oil smoke suction machine according to claim 1, it is characterised in that：The noise reduction module (7) is arranged on ternary
The lower section of wind turbine (4) is simultaneously close or be close to ternary wind turbine (4), and the noise reduction module (7) includes forming multiple gears of sound absorption back of the body chamber
Plate and the sound-absorbing hole for being opened in sound absorption back of the body top of chamber.
3. near-suction type oil smoke suction machine according to claim 2, it is characterised in that：The composition sound absorption of the noise reduction module (7)
Carrying on the back the baffle of chamber includes right baffle-plate (711), right shell body (712), front apron (713), rear baffle (714), bottom baffle (715) and top
Baffle (716), width of the top baffle (716) in front and rear direction are more than bottom baffle (715), the top baffle (716) by
Front to back is gradually inclined upwardly, and the sound-absorbing hole is opened on the top baffle (716).
4. near-suction type oil smoke suction machine according to claim 2, it is characterised in that：The sound absorption back of the body intracavitary is provided with middle interval
Plate (72) and be separated into the first chamber (751) and second chamber (752) positioned at arranged on left and right sides, in the first chamber (751)
It is provided with first chamber partition plate (73) and first chamber (751) is separated at least two first resonant cavities (761), described second
It is provided with second chamber partition plate (74) in chamber (752) and second chamber (752) is separated at least two second resonant cavities
(762)。
5. near-suction type oil smoke suction machine according to claim 4, it is characterised in that：The cavity of first resonant cavity (761)
Volume is less than the second resonant cavity (762).
6. near-suction type oil smoke suction machine according to claim 2, it is characterised in that：The sound-absorbing hole includes at least two first
Sound-absorbing hole (771), the aperture of first sound-absorbing hole (771) is 0.5mm~1mm.
7. near-suction type oil smoke suction machine according to claim 6, it is characterised in that：The sound-absorbing hole further includes at least two
Two sound-absorbing hole (772), the aperture of second sound-absorbing hole (772) are more than the first sound-absorbing hole (771).
8. near-suction type oil smoke suction machine according to claim 7, it is characterised in that：Baffle at the top of the noise reduction module (7)
On attached acoustical cotton (78), offered on the acoustical cotton (78) and matched 3rd sound-absorbing hole of the second sound-absorbing hole (772)
(773)。
9. according to near-suction type oil smoke suction machine according to any one of claims 1 to 8, it is characterised in that：The bottom of the housing (1)
Lubricating cup (3) is provided with below portion, at least one first oil dripping hole (7151), institute are offered on the bottom of the noise reduction module (7)
The bottom for stating housing (1) offers the second oil dripping hole (171), first oil dripping hole (7151), the second oil dripping hole (171) and oil
Cup (3) is corresponding.
10. according to near-suction type oil smoke suction machine according to any one of claims 1 to 8, it is characterised in that：The ternary wind turbine
(4) wind deflector (6) is provided with front side of, the wind deflector (6) includes the main body (61) being adapted to the cavity in housing (1), institute
The periphery for stating main body (61) bends to the front side of housing (1) and is formed and hold together smoke chamber, is offered and ternary wind on the main body (61)
The air guide hole (611) of air inlet (41) adaptation of machine (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290579.5U CN207230686U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721290579.5U CN207230686U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207230686U true CN207230686U (en) | 2018-04-13 |
Family
ID=61850039
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721290579.5U Withdrawn - After Issue CN207230686U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207230686U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109192190A (en) * | 2018-09-19 | 2019-01-11 | 中国人民解放军国防科技大学 | Thin-layer metamaterial sound absorption structure |
| CN109595626A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of near-suction type oil smoke suction machine |
| CN111520783A (en) * | 2020-05-12 | 2020-08-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
-
2017
- 2017-09-30 CN CN201721290579.5U patent/CN207230686U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595626A (en) * | 2017-09-30 | 2019-04-09 | 宁波方太厨具有限公司 | A kind of near-suction type oil smoke suction machine |
| CN109595626B (en) * | 2017-09-30 | 2023-11-17 | 宁波方太厨具有限公司 | Near-suction type range hood |
| CN109192190A (en) * | 2018-09-19 | 2019-01-11 | 中国人民解放军国防科技大学 | Thin-layer metamaterial sound absorption structure |
| CN109192190B (en) * | 2018-09-19 | 2020-05-08 | 中国人民解放军国防科技大学 | Thin-layer metamaterial sound absorption structure |
| CN111520783A (en) * | 2020-05-12 | 2020-08-11 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
| CN111520783B (en) * | 2020-05-12 | 2022-04-29 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
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| GR01 | Patent grant | ||
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| AV01 | Patent right actively abandoned |
Granted publication date: 20180413 Effective date of abandoning: 20231117 |