CN207230677U - 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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- CN207230677U CN207230677U CN201721288532.5U CN201721288532U CN207230677U CN 207230677 U CN207230677 U CN 207230677U CN 201721288532 U CN201721288532 U CN 201721288532U CN 207230677 U CN207230677 U CN 207230677U
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- 239000000779 smoke Substances 0.000 title claims abstract description 96
- 230000009467 reduction Effects 0.000 claims description 36
- 230000007246 mechanism Effects 0.000 claims description 34
- 238000010521 absorption reaction Methods 0.000 claims description 28
- 230000005540 biological transmission Effects 0.000 claims description 20
- 238000005192 partition Methods 0.000 claims description 19
- 229920000742 Cotton Polymers 0.000 claims description 14
- 238000002955 isolation Methods 0.000 claims description 9
- 238000005452 bending Methods 0.000 claims description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 4
- 239000000203 mixture Substances 0.000 claims description 3
- 230000006978 adaptation Effects 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 12
- 230000000694 effects Effects 0.000 description 8
- 238000000354 decomposition reaction Methods 0.000 description 5
- 235000019504 cigarettes Nutrition 0.000 description 4
- 238000007789 sealing Methods 0.000 description 3
- 230000000391 smoking effect Effects 0.000 description 3
- 238000005119 centrifugation Methods 0.000 description 2
- 230000001050 lubricating effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- 238000001228 spectrum Methods 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 230000002337 anti-port Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000012141 concentrate Substances 0.000 description 1
- 238000009792 diffusion process Methods 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000003912 environmental pollution Methods 0.000 description 1
- 239000003546 flue gas Substances 0.000 description 1
- 239000003517 fume Substances 0.000 description 1
- 230000009931 harmful effect Effects 0.000 description 1
- 230000036541 health Effects 0.000 description 1
- 238000001727 in vivo Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
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Abstract
The utility model discloses a kind of near-suction type oil smoke suction machine, including housing and blower fan system, the housing includes the panel inclined with horizontal direction positioned at front end, and opening is offered on the panel and becomes the air inlet of range hood, it is characterised in that：The blower fan system is ternary wind turbine, gear smoke background is provided with front side of the panel, the top of the gear smoke background and panel is rotatablely connected, so that the gear smoke background can be turned out and open the air inlet of range hood or inwardly rotate and close the air inlet of range hood.When range hood does not work, gear smoke background closes the strainer and blower fan system that can be hidden compared with greasy dirt so that range hood keeps neat and tidy, improves significantly to kitchen environment.
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 side-suction type range hood as disclosed in the Chinese patent of Application No. 201110338726.2, including：Exterior face
Plate, has the first middle opening；Centre panel, configures the first central closing in exterior panel, between exterior panel
Gap forms smoke inlet；Smoke collecting chamber, connects positioned at the inner side of exterior panel, and with smoke inlet；Lubricating cup, is arranged under smoke collecting chamber
Side；Led between the lower edge of smoke collecting chamber and the inner surface of exterior panel there are gap with forming connected with the inner cavity of lubricating cup first
Oily passage.
The scheme of the prior art as described above, centre panel are fixed, are equipped between centre panel and exterior panel
For the gap of flue gas suction, its gap is fixed when designing and manufacture for original, therefore gap is in permanent opening-wide state, makes
It is straight-through that exhaust fume collecting hood, which is obtained, with flue, and smoke barrier can not effectively obstruct the oil smoke taint of odour of the other users in whole flue, useful
Bring greatly inconvenience and environmental pollution in family.
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
The near-suction type oil smoke suction machine of smoking efficiency.
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 and blower fan system, the housing include the panel inclined with horizontal direction positioned at front end, are offered on the panel
It is open and becomes the air inlet of range hood, it is characterised in that：The blower fan system is ternary wind turbine, is set on front side of the panel
Gear smoke background is equipped with, the top of the gear smoke background and panel is rotatablely connected, so that the gear smoke background can be turned out and open oil suction
The air inlet of smoke machine inwardly rotates and closes the air inlet of range hood.
Smoke background automatic open-close is kept off to enable, is easy to use, further includes the driving machine for driving the gear smoke background to act
Structure and transmission mechanism, the driving mechanism are arranged in housing, and the transmission mechanism is connected with gear smoke background, and the driving mechanism is led to
Cross transmission mechanism and drive gear smoke background automatic open-close.
Preferably, for ease of keeping off the control of smoke background, sealing effect is improved, the arranged on left and right sides of the panel offers respectively
Straight slot, the straight slot are upwardly extended in upper and lower；The transmission mechanism includes two groups by the first connecting seat, the second connecting seat, company
The combination of bar and bearing composition, the combination are separately positioned on the arranged on left and right sides of gear smoke background；In each group, first connection
One end that one end of seat is connected the fixed, other end and connecting rod with gear smoke background towards the side in housing is rotatablely connected, the connecting rod
The other end be then rotatablely connected through straight slot and bearing, the bearing is fixed on panel towards the inner side in housing, described second
One end of connecting seat is connected the fixed, other end towards the side in housing with gear smoke background and is then extended to through straight slot in panel
Side, second connecting seat are located at below the first connecting seat；The driving mechanism is used to drive one of them second connecting seat to move
Make.
Preferably, reliable to keep off smoke background flexible movements, the driving mechanism is electric pushrod, is arranged in housing
Left and right wherein side, the transmission mechanism further include drive link, one of them second connecting seat extends into one end on the inside of panel
It is rotatablely connected with one end of drive link, the other end of the drive link is then connected with the output terminal of driving mechanism.
Efficient due to ternary wind turbine, noise is big, is provided with the housing for reducing making an uproar for ternary wind turbine generation
The noise reduction module of sound, the noise reduction module include the multiple baffles for forming sound absorption back of the body chamber and the suction for being opened in sound absorption back of the body top of chamber
Acoustic aperture.
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 sound-absorbing hole is offered on the top baffle.
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 is including at least two first sound-absorbing hole and at least
Two the second sound-absorbing hole, the aperture of second sound-absorbing hole are more than the first sound-absorbing hole.
To increase the acoustic absorptivity of low-frequency noise, the first acoustical cotton, institute have been attached on the baffle at the top of the noise reduction module
State and offered on the first acoustical cotton and matched 3rd sound-absorbing hole of the second sound-absorbing hole.
One side according to the present utility model, the ternary wind turbine are in that the housing is obliquely arranged in horizontal direction
In the cavity collectively formed with cabinet, the air inlet of the ternary wind turbine is corresponding with the opening on panel, the noise reduction module
The lower section of ternary wind turbine and close or be close to ternary wind turbine is arranged on, the aperture of first sound-absorbing hole is 0.5mm~1mm.
Other side according to the present utility model, is provided with cabinet above the housing, and the ternary wind turbine is in and water
Square to being obliquely arranged in cabinet, the aperture of first sound-absorbing hole is 0.8mm~3mm；Or the ternary wind turbine erects
Directly it is arranged in the cabinet, the aperture of first sound-absorbing hole is 1mm~5mm；The noise reduction module is arranged on ternary wind
The lower section of machine, positioned at the bottom of housing.
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 at least partly bend to the front side of housing and are formed and hold together smoke chamber, offered in the main body and three
The air guide hole of the air inlet adaptation of first wind turbine.
To increase the effect of water conservancy diversion noise reduction, the bottom angled of the main body has extended to form forward downwards cover board, the lid
Plate is close or is close to the top of noise reduction module.
Further to reduce noise on the noise transmission path of ternary wind turbine, the rear side of the main body of the wind deflector is located at
Position below ternary wind turbine has attached the second acoustical cotton.
For cause in noise spectrum for human ear sensitivity part reduce, the ternary wind turbine be in horizontal direction obliquely
Arrangement, the air inlet of the ternary wind turbine are provided with afflux circle, and the afflux circle includes outer ring and is arranged on outer ring towards three
The inner ring of inner side in first wind turbine, the inner ring includes isolation face and the inner ring stationary plane positioned at isolation face outer circumferential, described
Sound-absorption hole is densely covered with isolation face.
Compared with prior art, the utility model has the advantage of：When range hood does not work, gear smoke background is closed can be with
Hide the strainer and blower fan system compared with greasy dirt so that range hood keeps neat and tidy, improves significantly to kitchen environment；When
When range hood works, gear smoke background is opened and can play the role of drainage to the air of casing peripheral, can be to passing through outer rectifier
Air-flow carry out effective Ground Split rectification and guiding, reduce turbulent flow and sinuous flow in air-flow, form smooth-going air-flow, that is, increasing
Add the collection cigarette area of housing, can preferably improve the smoke discharging effect of range hood；The driving mechanism of the automatic open-close of use and
Transmission mechanism, can enable gear smoke background flexibly to be lifted according to case panel and rotation reclines, control is more convenient, sealing
Effect is preferable；By using ternary wind turbine, blower fan structure is compact, and size is relatively small, and fan efficiency and wind pressure are high, and generation is born
Press gradient big, can be so that smoking efficiency be significantly lifted；And the arrangement of ternary wind turbine can reduce the resistance of ducting, smoke evacuation is more suitable
Freely；By setting noise reduction module, the full frequency band noise of high frequency, intermediate frequency and low frequency can be absorbed, avoids influencing range hood just
Often use.
Brief description of the drawings
Fig. 1 is the schematic diagram of one embodiment of the range hood of the utility model；
Fig. 2 is the sectional view of the range hood of Fig. 1；
Fig. 3 is the gear smoke background open mode schematic diagram of the range hood of Fig. 1；
Fig. 4 is the decomposition texture schematic diagram of the range hood of Fig. 1；
Fig. 5 is the partial structural diagram of the range hood of Fig. 1；
Fig. 6 is the exploded structure diagram of Fig. 5；
Fig. 7 is the noise reduction module schematic diagram of the range hood of the utility model；
Fig. 8 is the decomposition texture schematic diagram of the noise reduction module of the range hood of the utility model；
Fig. 9 is the sectional view along A-A of the noise reduction module of Fig. 7；
Figure 10 is the B-B direction sectional view of the noise reduction module of Fig. 7；
Figure 11 is the cross section view of the noise reduction module of Fig. 7.
Figure 12 is the schematic diagram of second embodiment of the range hood of the utility model；
Figure 13 is the sectional view of the range hood of Figure 12；
Figure 14 is the decomposition texture schematic diagram of the range hood of Figure 12；
Figure 15 is the schematic diagram of the afflux circle of the ternary wind turbine of the range hood of embodiment two；
Figure 16 is the decomposition texture schematic diagram of the afflux circle of Figure 15
Figure 17 is the sectional view of the 3rd embodiment of the range hood of the utility model；
Figure 18 is the decomposition texture schematic diagram of the range hood of Figure 17.
Embodiment
The utility model is described in further detail below in conjunction with attached drawing embodiment.
Referring to Fig. 1~Fig. 6, a kind of near-suction type oil smoke suction machine, including housing 1, for ease of describing, hereinafter, " preceding ",
" rear ", "left", "right", " on ", " under " each mean user when using range hood, range hood relative to user side
Position, and structure is not limited.
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
Up to it is lower gradually tilt backwards (with horizontal direction tilt) so that towards the front side of user be inclined plane.Two the first side plates
Top between 11 is provided with top plate 12, and the rear end between two the first side plates 11 is provided with back side panel 13.
Panel 14 is provided between two 11 front ends of the first side plate, panel 14 includes being located at inner panel 142, and is centered around
142 periphery of inner panel, the outer panels 143 for forming frame, opening 141 is offered on inner panel 142 with formed range hood into
Air port, it is preferred that air inlet is located at 142 center of inner panel.Inner panel 142 relative to outer panels 143 towards 1 sunken inside of housing,
And closing among the outer edge of inner panel 142 and the inward flange of outer panels 143, inner panel 142 and outer panels 143 are in flat
Face.
14 front side top of panel is provided with gear smoke background 15, lower section and is provided with baffle 18, keeps off smoke background 15 and baffle 18 formed
Overall and outer panels 143 shapes, size fit, and when range hood works, keep off between smoke background 15 and inner panel 142
Shape has a certain degree, and oil smoke from air inlet enters housing 1 after passing through from the interval between gear smoke background 15 and inner panel 142
It is interior.The inclination of panel 14 and gear smoke background 15 at an angle to the horizontal direction, baffle 18 can be flushed with outer panels 143, and
And gear smoke background 15 is at least corresponding with part air inlet.
Preferably, the top for keeping off smoke background 15 and panel 14 is rotatablely connected, and can be rotated relative to panel 14, and baffle 18 then with face
The connection of plate 14 is fixed.Gear smoke background 15 is rotatablely connected by driving mechanism 151 and transmission mechanism 152 with panel 14.Preferably, drive
Mechanism 151 is electric pushrod, is arranged in housing 1, left and right corresponding with gear smoke background 15 wherein side.Transmission mechanism 152 includes
First connecting seat 1521, the second connecting seat 1522, connecting rod 1523 and bearing 1524, wherein, the connection of the first connecting seat 1521, second
The combination that seat 1522, connecting rod 1523 and bearing 1524 form has two groups.The left and right sides of inner panel 142 offers straight slot respectively
1421, straight slot 1421 extends in the up-down direction.In each group, one end of the first connecting seat 1521 is with keeping off smoke background 15 towards housing
Side in 1 connects the fixed, other end and one end of connecting rod 1523 is rotatablely connected, and the other end of connecting rod 1523 then passes through straight slot
1421 are rotatablely connected with bearing 1524, bearing 1524 be fixed on inner panel 14 towards the inner side in housing 1, with 1421 phase of straight slot
It is adjacent.One end of second connecting seat 1522 is connected the fixed, other end towards the side in housing 1 with gear smoke background 15 and then passes through straight slot
1421 and extend to the inner side of panel 14.Second connecting seat 1522 is located at the lower section of the first connecting seat 1521.
Transmission mechanism 152 further includes drive link 1525, one of them second connecting seat 1522 extends into the inner side of panel 14
One end of one end and drive link 1525 is rotatablely connected, and the output terminal of the other end of drive link 1525 then with driving mechanism 151 is connected,
Thus, driving mechanism 151 can drive transmission device 152 act so that gear smoke background 15 open or close.Another second company
Joint chair 1522 is then free end through one end in panel 14.
When range hood works, driving mechanism 151 starts, by drive link 1525 and one end that driving mechanism 151 is connected to
It is pushed forward, one end that drive link 1525 is connected with the second connecting seat 1522 at this time is also to being pushed forward, and thus the second connecting seat 1522 is logical
Moving up in groove 1421 and rotate forward at the same time, 1521 relative seat 1524 of the first connecting seat is moved up and rotated forward,
So that gear smoke background 15 gradually leaves panel 14, rotation opens up, and when gear smoke background 15 is opened to certain angle, driving mechanism
151 are stopped, and keep off the open mode that smoke background 15 keeps certain angle at this time, thus oil smoke can enter in housing 1.Range hood
When being stopped, 151 antiport of driving mechanism, gear smoke background 15 is moved down, rotating backward is returned to close to inner panel
142, air inlet is closed by gear smoke background 15 at this time, and preferably, gear smoke background 15 is flushed with outer panels 143 to be integrally formed.
The gear smoke background 15 set by doing so, during opening, gear smoke background 15 can be flexible according to the size of 1 front angle of housing
Translation and rotation recline, and it is more convenient more convenient that gear smoke background 15 is opened, and sealing effect is more preferable, holds together cigarette area bigger, oil smoke focusing energy
Power is strong；During closing, strainer and wind turbine compared with greasy dirt can be hidden so that range hood seems neat and tidy, convenient cleaning, at the same time
The taint of odour of oil smoke can be prevented again, improved significantly to air in kitchen environment.
It is provided with strainer 16 in housing 1, strainer 16 can set corresponding with the opening of housing 1 141, can also be arranged on wind
The air inlet of machine system.The bottom of housing 1,13 bottom of back side panel and panel are connected with bottom plate 17 between 14 bottom.Above-mentioned
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.
Blower fan system is arranged in housing 1, and in the present embodiment, blower fan system is ternary wind turbine 4, and ternary wind turbine 4 can be adopted
With the prior art, such as the blower fan structure disclosed in the patent of the Application No. 201620102790.9 of the applicant, ternary wind
The air outlet of machine 4 is provided with outlet housing 5, for by the oil smoke discharge that ternary wind turbine 4 is discharged to wind pipe.Ternary wind turbine 4
Air inlet 41 is corresponding with the opening 141 on inner panel 142 before, and in the chamber that housing 1 is obliquely placed in horizontal direction
In vivo.
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, and referring to Fig. 7~11, noise reduction module 7 includes right baffle-plate 711, right shell body 712, front apron
713rd, 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 apron 713 from top to bottom gradually tilts backwards, and right baffle-plate 711 and right shell body 712 are in triangle substantially, thus above-mentioned each plate
The sound absorption back of the body chamber collectively formed is in triangulo column (up big and down small) substantially.Top baffle 716 is gradually inclined upwardly from front to back,
It is consistent with the incline direction of 4 bottom of ternary wind turbine, 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
Sound absorption back of the body intracavitary is arranged on, 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., one second resonance between the second chamber partition plate 74, top baffle 716, intermediate bulkhead 72, right shell body 712
Chamber 762, remainder then form another the second resonant cavity 762.Another can also be set in another resonant cavity 762
Second chamber partition plate 74, in tabular, extends between intermediate bulkhead 72 and right shell body 712, thus second is total to this another
The chamber 762 that shakes 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
Module 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, noise frequency range pole
Width, only reduces the diameter of the first sound-absorbing hole 771 within the above range, and noise reduction module 7 could be caused to reach sound absorption frequency range pole
Limit.The aperture of second sound-absorbing hole 772 is more than the first sound-absorbing hole 771.
Top baffle 716 has attached the first acoustical cotton 781 above, is offered on the first acoustical cotton 781 and the second sound-absorbing hole 772
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.
Embodiment two
Referring to Figure 12~Figure 14, in the present embodiment, it is with the difference of above-described embodiment one, cabinet 2 includes four
A second side plate 21, so as to surround the body structure that cross section is square or rectangular, the bottom opening of cabinet 2, so that oily
After cigarette enters in the cavity in housing 1, it can enter in cabinet 2.
The air inlet 41 of ternary wind turbine 4 is in obliquely to be placed in cabinet 2 with horizontal direction before.Ternary wind turbine 4
Air inlet 41 at be provided with afflux circle 42.Ternary wind turbine 4 so above puies forward arrangement, realize directly inhale it is in line, negative pressuren zone concentrate, have
Help reduce the resistance of ducting, smoke evacuation is more smooth.
Since ternary wind turbine 4 is obliquely arranged in cabinet 2, do not block, therefore, the low frequency that ternary wind turbine 4 produces is made an uproar
Sound is easier outwards to propagate.For this reason, afflux circle 42 is preferable, using the Application No. 201210230512.8 such as the application
Form disclosed in patent, referring to Figure 15 and Figure 16, including outer ring 421 and inner ring 422, inner ring 422 is located at 421 direction of outer ring
Inner side in ternary wind turbine 4, outer ring 421 include the wind-guiding face 4211 to be extended internally by air inlet 41 and positioned at wind-guiding faces
4211 outer circumferentials are used for fixed outer ring stationary plane 4212, and inner ring 422 includes being used to block with what wind-guiding face 4211 coordinated
The isolation face 4221 of turbulent area and the inner ring stationary plane 4222 for being used for fixation positioned at isolation 4221 outer circumferential of face.Inner ring 422
Densely covered sound-absorption hole 4223 on isolation face 4221.When the noise air-flow that ternary wind turbine 4 produces passes through sound-absorption hole 4223, pneumatic noise
Can be to high-frequency mobile so that reduce the part in noise spectrum for human ear sensitivity.Can be between outer ring 421 and inner ring 422
Acoustical cotton is set.
In order to enable oil smoke can preferably be directed into ternary wind turbine, wind-guiding is provided between ternary wind turbine 4 and panel 14
Plate 6, wind deflector 6 include main body 61 and the top wind deflector 63 positioned at the top of main body 61.Wherein, main body 61 is plate-like, incline direction
Consistent with ternary wind turbine 4, main body 61 is placed in housing 1 and cabinet 2, and air guide hole 611 is offered in main body 61, air guide hole 611
Shape, size are adapted to the air inlet of ternary wind turbine 4；Push up second side of the wind deflector 62 by the top of main body 61 towards the front side of cabinet 2
21 direction of plate bends and is formed, and is connected fixation with the second side plate 21.Wind deflector 6 further include bottom angled from main body 61 to
Under the cover board 64 that extends forward, cover board 64 extends close to panel 14.Thus, structure as wind deflector 6, forms cigarette
Chamber, the oil smoke that diffusion in housing 1 is entered from panel 14 can be guided to ternary wind turbine 4, improve smoking efficiency.Wind deflector 6 increases
The centrifugation supercharging effect of the front side of ternary wind turbine 4, reduces the pressure loss.
The top baffle 716 of noise reduction module 7 is gradually inclined upwardly from front to back, the inclination with ternary wind turbine 4 bottom, cover board 64
Direction is consistent, and preferably, top baffle 716 is close or is close to the cover board 64 of wind deflector 6, thus increases the work of water conservancy diversion noise reduction
With.
In addition, this arrangement of ternary wind turbine 4, rotating speed is small, and negative pressuren zone is concentrated, and low-frequency noise is big, it is desirable to the sound absorption back of the body
Chamber it is highly preferred, be 8mm~20mm.
A diameter of 0.8mm~3mm of the first sound-absorbing hole 771 offered on top baffle 716, this is because noise reduction module 7
Close or be close to have certain spacing between cover board 64, with ternary wind turbine 4, noise frequency range is wider, only by the first sound-absorbing hole
771 diameter reduces within the above range, and noise reduction module 7 could be caused to reach band limit.
Top baffle 716, the first acoustical cotton 781 and cover board 64 can be close to mutually.The rear side of the main body 61 of wind deflector 6 is located at three
The position of first lower section of wind turbine 4 can attach the second acoustical cotton 782, further be reduced on the noise transmission path of ternary wind turbine 4
Noise.
Embodiment three
Referring to Figure 17 and Figure 18, in the present embodiment, it is with the difference of above-described embodiment two, ternary wind turbine 4
Air inlet 41 is vertically placed in cabinet 2 before.The arrangement of this wind turbine, low-frequency noise are blocked, therefore nothing
Sound-absorption hole 4223 need to be opened up on afflux circle 42 and carrys out conversion noise frequency.In addition, the ternary wind turbine 4 arranged vertically, its diameter are big
Tilting ternary wind turbine 4 in embodiment two, to make up the flow losses of air-flow steering, it is preferred that ternary wind turbine 4 at this time
A diameter of 220mm~300mm.
Main body 61 bends certain distance rear-inclined in 1 inside points of housing and bends downward to form bending part 612 backward, above-mentioned master
The bending part 612 of body 61 is located at the lower section of ternary wind turbine 4；Wind deflector 6 is further included by the bottom angled of the bending part 612 of main body 61
The cover board 64 extended forward downwards, cover board 64 extend close to panel 14.
In addition, this arrangement of ternary wind turbine 4, rotating speed is high, and high-frequency noise is big, it is desirable to which the height of sound absorption back of the body chamber is more
Greatly, it is preferred that be 15mm~28mm.
Since noise reduction module 7 is more away from ternary wind turbine, the first sound-absorbing hole 771 offered on top baffle 716
A diameter of 0.8mm~3mm, only the diameter of the first sound-absorbing hole 771 is reduced within the above range, could cause noise reduction module
7 reach band limit.
The position that the rear side of the bending part 612 of the main body 61 of wind deflector 6 is located at the lower section of ternary wind turbine 4 can attach the second suction
Sound cotton 782, further reduces noise on the noise transmission path of ternary wind turbine 4.
Above-mentioned wind deflector 6 can be used in embodiment one.
Claims (16)
1. a kind of near-suction type oil smoke suction machine, including housing (1) and blower fan system, the housing (1) includes positioned at front end and water
Square to inclined panel (14), offer opening (141) on the panel (14) and as the air inlet of range hood, its
It is characterized in that：The blower fan system is ternary wind turbine (4), and gear smoke background (15), the gear are provided with front side of the panel (14)
Smoke background (15) and the top of panel (14) are rotatablely connected, so that the gear smoke background (15) can be turned out and open range hood
Air inlet inwardly rotates and closes the air inlet of range hood.
2. near-suction type oil smoke suction machine according to claim 1, it is characterised in that：Further include for driving the gear smoke background
(15) driving mechanism (151) and transmission mechanism (152) of action, the driving mechanism (151) is arranged in housing (1), described
Transmission mechanism (152) is connected with gear smoke background (15), and the driving mechanism (151) drives gear smoke background by transmission mechanism (152)
(15) automatic open-close.
3. near-suction type oil smoke suction machine according to claim 2, it is characterised in that：The arranged on left and right sides of the panel (14) point
Straight slot (1421) is not offered, and the straight slot (1421) upwardly extends in upper and lower；The transmission mechanism (152) includes two groups
The combination being made of the first connecting seat (1521), the second connecting seat (1522), connecting rod (1523) and bearing (1524), the combination
It is separately positioned on the arranged on left and right sides of gear smoke background (15)；In each group, one end and the gear smoke background of first connecting seat (1521)
(15) one end that the fixed, other end and connecting rod (1523) are connected towards the side in housing (1) is rotatablely connected, the connecting rod
(1523) the other end is then rotatablely connected through straight slot (1421) and bearing (1524), and the bearing (1524) is fixed on panel
(14) towards the inner side in housing (1), one end of second connecting seat (1522) and gear smoke background (15) are towards in housing (1)
Side connection is fixed, the other end is then extended on the inside of panel (14), second connecting seat (1522) through straight slot (1421)
Below the first connecting seat (1521)；The driving mechanism (151) is used to drive one of them second connecting seat (1522) dynamic
Make.
4. near-suction type oil smoke suction machine according to claim 3, it is characterised in that：The driving mechanism (151) pushes away to be electronic
Bar, the left and right wherein side being arranged in housing (1), the transmission mechanism (152) further include drive link (1525), one of them
Second connecting seat (1522) extends into one end on the inside of panel (14) and one end of drive link (1525) and is rotatablely connected, the transmission
Output terminal of the other end of bar (1525) then with driving mechanism (151) is connected.
5. near-suction type oil smoke suction machine according to claim 1, it is characterised in that：It is provided with the housing (1) for dropping
The noise reduction module (7) for the noise that low ternary wind turbine (4) produces, the noise reduction module (7) include 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.
6. near-suction type oil smoke suction machine according to claim 5, 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 sound-absorbing hole is offered on the top baffle (716).
7. near-suction type oil smoke suction machine according to claim 6, 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)。
8. near-suction type oil smoke suction machine according to claim 7, it is characterised in that：The cavity of first resonant cavity (761)
Volume is less than the second resonant cavity (762).
9. near-suction type oil smoke suction machine according to claim 5, it is characterised in that：The sound-absorbing hole includes at least two first
Sound-absorbing hole (771) and at least two second sound-absorbing hole (772), the aperture of second sound-absorbing hole (772) are more than the first sound-absorbing hole
(771)。
10. near-suction type oil smoke suction machine according to claim 9, it is characterised in that：Baffle at the top of the noise reduction module (7)
On attached the first acoustical cotton (781), offered on first acoustical cotton (781) and the second sound-absorbing hole (772) matched
Three sound-absorbing hole (773).
11. near-suction type oil smoke suction machine according to claim 9, it is characterised in that：The ternary wind turbine (4) be in and level side
To being obliquely arranged in the housing (1), air inlet (41) and the opening on panel (14) of the ternary wind turbine (4)
(141) corresponding, the noise reduction module (7) is arranged on the lower section of ternary wind turbine (4) and close or be close to ternary wind turbine (4), institute
The aperture for stating the first sound-absorbing hole (771) is 0.5mm~1mm.
12. near-suction type oil smoke suction machine according to claim 9, it is characterised in that：Cabinet is provided with above the housing (1)
(2), the ternary wind turbine (4) is in obliquely to be arranged in horizontal direction in cabinet (2), the hole of first sound-absorbing hole (771)
Footpath is 0.8mm~3mm；Or the ternary wind turbine (4) is vertically disposed in the cabinet (2), first sound-absorbing hole
(771) aperture is 1mm~5mm；The noise reduction module (7) is arranged on the lower section of ternary wind turbine (4), positioned at the bottom of housing (1)
Portion.
13. near-suction type oil smoke suction machine according to claim 12, it is characterised in that：Set on front side of the ternary wind turbine (4)
Wind deflector (6) is equipped with, the wind deflector (6) includes the main body (61) being adapted to the cavity in housing (1), the main body (61)
At least partly lateral bending is rolled over and is formed and hold together smoke chamber forward on periphery, and the air inlet with ternary wind turbine (4) is offered on the main body (61)
(41) air guide hole (611) of adaptation.
14. near-suction type oil smoke suction machine according to claim 13, it is characterised in that：The bottom angled of the main body (61) to
Under extended to form cover board (64) forward, the cover board (64) is close or is close to the top of noise reduction module (7).
15. near-suction type oil smoke suction machine according to claim 13, it is characterised in that：The main body (61) of the wind deflector (6)
The position that is located at below ternary wind turbine (4) of rear side attached the second acoustical cotton (782).
16. near-suction type oil smoke suction machine according to claim 12, it is characterised in that：The ternary wind turbine (4) be in and level
Direction obliquely arranges that air inlet (41) place of the ternary wind turbine (4) is provided with afflux circle (42), afflux circle (42) bag
Include outer ring (421) and be arranged on inner ring (422) of the outer ring (421) towards the inner side in ternary wind turbine (4), the inner ring (422)
Including isolation face (4221) and the inner ring stationary plane (4222) positioned at isolation face (4221) outer circumferential, the isolation face (4221)
On be densely covered with sound-absorption hole (4223).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721288532.5U CN207230677U (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 |
|---|---|---|---|
| CN201721288532.5U CN207230677U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207230677U true CN207230677U (en) | 2018-04-13 |
Family
ID=61850100
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721288532.5U Withdrawn - After Issue CN207230677U (en) | 2017-09-30 | 2017-09-30 | A kind of near-suction type oil smoke suction machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207230677U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595636A (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 |
| CN110748931A (en) * | 2018-07-24 | 2020-02-04 | 深圳富桂精密工业有限公司 | Smoke exhaust ventilator |
| CN111780180A (en) * | 2020-06-30 | 2020-10-16 | 宁波方太厨具有限公司 | Fume exhaust fan |
-
2017
- 2017-09-30 CN CN201721288532.5U patent/CN207230677U/en not_active Withdrawn - After Issue
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109595636A (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 |
| CN109595636B (en) * | 2017-09-30 | 2024-01-16 | 宁波方太厨具有限公司 | Near-suction type range hood |
| CN110748931A (en) * | 2018-07-24 | 2020-02-04 | 深圳富桂精密工业有限公司 | Smoke exhaust ventilator |
| CN111780180A (en) * | 2020-06-30 | 2020-10-16 | 宁波方太厨具有限公司 | Fume exhaust fan |
| CN111780180B (en) * | 2020-06-30 | 2022-02-18 | 宁波方太厨具有限公司 | Fume exhaust fan |
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