CN108167910A - Active active noise reducing device and range hood - Google Patents
Active active noise reducing device and range hood Download PDFInfo
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- CN108167910A CN108167910A CN201810198990.2A CN201810198990A CN108167910A CN 108167910 A CN108167910 A CN 108167910A CN 201810198990 A CN201810198990 A CN 201810198990A CN 108167910 A CN108167910 A CN 108167910A
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- oil
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- resonant cavity
- noise reducing
- leaking hole
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- 230000009467 reduction Effects 0.000 claims abstract description 50
- 238000009924 canning Methods 0.000 claims abstract description 17
- 230000001050 lubricating effect Effects 0.000 claims abstract description 14
- 230000008676 import Effects 0.000 claims abstract description 3
- 229920000742 Cotton Polymers 0.000 claims description 11
- 230000000903 blocking effect Effects 0.000 claims description 2
- 239000003921 oil Substances 0.000 description 124
- 230000000694 effects Effects 0.000 description 11
- 241000219146 Gossypium Species 0.000 description 9
- 238000010586 diagram Methods 0.000 description 9
- 239000003517 fume Substances 0.000 description 7
- 238000013461 design Methods 0.000 description 6
- 238000005516 engineering process Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 6
- 230000008901 benefit Effects 0.000 description 5
- 230000036541 health Effects 0.000 description 4
- 238000005192 partition Methods 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 238000010411 cooking Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 206010067484 Adverse reaction Diseases 0.000 description 1
- 206010019233 Headaches Diseases 0.000 description 1
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000006838 adverse reaction Effects 0.000 description 1
- 238000013019 agitation Methods 0.000 description 1
- 231100000869 headache Toxicity 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005457 optimization Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000005236 sound signal Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 238000012795 verification 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
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The present invention provides a kind of active active noise reducing device and range hoods, are related to the technical field of range hood.A kind of active active noise reducing device, is set between blower fan apparatus and guard, including resonant cavity and loud speaker, oil circuit is provided on the resonant cavity, sump oil on blower fan apparatus is dropped on resonant cavity, and imports canning by oil circuit, and flow into lubricating cup.A kind of range hood includes active active noise reducing device.It is bad and there are problems that oil dripping oil leak to alleviate denoising device noise reduction of the prior art the purpose of the present invention is to provide a kind of active active noise reducing device and range hood.
Description
Technical field
The present invention relates to the technical field of range hood, more particularly, to a kind of active active noise reducing device and fume-exhausting
Machine.
Background technology
Domestic cooking fume remover has become the essential cooking apparatus of Modern Family, but uses institute with range hood
The noise problem brought can make user generate the adverse reactions such as headache, agitation, nervous, serious shadow is caused to user's body health
It rings.Therefore, various noise reduction technologies extensive use on range hood.
In noise reduction measure existing to range hood, it is concentrated mainly on optimization and use to noise source of generation wind turbine
The methods of passive sound-absorbing material, realizes that these methods are apparent for medium-high frequency noise result, but in range hood noise
It is bad to occupy substantial portion of low frequency noise effect in frequency spectrum.And in the control of low frequency noise, active active noise reduction is ratio
One of more effective processing scheme, in existing patent, active active noise reduction system includes Noise Acquisition element, acoustic wave generating element
And control element, noise sound wave is acquired by Noise Acquisition element and is sent to control element in electrical signal form, is led to
It crosses control element and sends out instruction to acoustic wave generating element, acoustic wave generating element is made to launch the sound cancelled out each other with noise sound wave
Wave, to realize noise reduction.
However, in scheme of the above-mentioned existing patent for using active active noise reduction on existing range hood, not
The problems such as considering range hood noise reduction and oil dripping, oil leak.
Based on problem above, a kind of active drop of active met the requirements in structure and be less prone to drop oil leakage phenomenon is proposed
Device of making an uproar is particularly important.
The information for being disclosed in the background technology part is merely intended to deepen understanding of the general background technology to the present invention, and
It is not construed as recognizing or implies that the information forms the prior art known to those skilled in the art in any form.
Invention content
It is of the prior art to alleviate the purpose of the present invention is to provide a kind of active active noise reducing device and range hood
There are the problems such as oil dripping or oil leak for active active noise reducing device.
In order to solve the above-mentioned technical problem, the technological means taken of the present invention is：
A kind of active active noise reducing device provided by the invention, applied to the range hood with active active noise reduction system
In, which is set between blower fan apparatus and guard, is used for including resonant cavity and being arranged on resonant cavity
Emit the loud speaker of noise reduction sound wave；The oil circuit for dredging sump oil is provided on the resonant cavity；
Sump oil on the blower fan apparatus is dropped on the resonant cavity, and the shell of range hood is imported by the oil circuit
Device, and flow into lubricating cup.
As a kind of further technical solution, the oil circuit includes at least the first oil leaking hole, the second oil leaking hole and Oil Guide
Channel, first oil leaking hole are set to the top of the resonant cavity, and second oil leaking hole is set to the bottom of the resonant cavity
Portion, and connected between first oil leaking hole and second oil leaking hole by the Oil Guide channel；
The sump oil that the blower fan apparatus is dropped on the resonant cavity leads to successively by first oil leaking hole, the Oil Guide
Road and second oil leaking hole import the canning, and flow into lubricating cup.
As a kind of further technical solution, groove structure, and first oil leak are offered on the resonant cavity
Hole is set in the groove structure.
As a kind of further technical solution, the both sides of the resonant cavity width direction are separately provided for blocking dirt
The borderline structure that oil is dripped from both sides at the top of the resonant cavity.
As a kind of further technical solution, at least side of the resonant cavity width direction is provided in the width direction
The oil-containing groove of evagination, for accepting the sump oil of the blower fan apparatus side drippage.
As a kind of further technical solution, the side of the bottom face of the resonant cavity along its length is to another lateral
Under be obliquely installed, and the angular range between the bottom face of the resonant cavity and the horizontal plane be 5 ° -20 °.
As a kind of further technical solution, the resonant cavity includes resonance cavity main body and cover board, the cover board spiral-lock
On the resonance cavity main body, and the bottom of the cover board and the blower fan apparatus is correspondingly arranged.
As a kind of further technical solution, the noise reducing plate with noise reduction hole is additionally provided on the resonant cavity, it is described
The third oil leaking hole being correspondingly arranged with second oil leaking hole is offered on noise reducing plate；
The sump oil of the second oil leaking hole outflow flows into the canning, and flow into lubricating cup by the third oil leaking hole
In.
As a kind of further technical solution, the noise reduction being correspondingly arranged with the noise reducing plate is provided on the resonant cavity
Cotton, and the noise reduction cotton is covered at the outlet sound mouth of the loud speaker.
A kind of range hood provided by the invention includes the active active noise reducing device.
Compared with prior art, technology possessed by a kind of active active noise reducing device and range hood provided by the invention
Advantage is：
A kind of active active noise reducing device provided by the invention, is applied in the range hood with active active noise reduction system
In, which is arranged on the lower section of cooking-fume exhauster blower device, and the top of guard including resonant cavity and is raised one's voice
Device, loud speaker are arranged in resonant cavity, which is electrically connected with the control device of range hood, pass through the control of control device
Effect can make loud speaker launch the noise reduction sound wave mutually neutralized with noise sound wave, to realize noise reduction.
Further, the oil circuit for dredging sump oil, so, the sump oil dripped from wind turbine are provided on resonant cavity
It is accepted by resonant cavity, and sump oil is collected and is imported into the canning of range hood together, finally flowed into lubricating cup and received
Collection, the sump oil effectively alleviated on blower fan apparatus is directly dropped on guard, and is dropped onto on hearth from guard, is seriously affected
Range hood and hearth health and the problem of blocked to guard.
The present invention makes it both meet setting for active active system by carrying out structure design to active active device, improving
Meter, installation, application requirement, while normal active active noise reduction effect is not interfered with again, it is most important that, it can be to wind turbine
The sump oil dripped on device is dredged, and sump oil is made to be flowed along the oil circuit on resonant cavity, is finally flowed by way of canning
Enter and be collected into lubricating cup, solve the problems, such as range hood oil dripping, oil leak.
A kind of range hood provided by the invention, including above-mentioned active active noise reducing device, the range hood is reached as a result,
To technical advantage and effect include above-mentioned active the active noise reducing device technical advantage and effect that are reached, herein without superfluous
It states.
Description of the drawings
It, below will be to specific in order to illustrate more clearly of the specific embodiment of the invention or technical solution of the prior art
Embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, in being described below
Attached drawing is some embodiments of the present invention, for those of ordinary skill in the art, before not making the creative labor
It puts, can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is the schematic diagram of the structure of active active noise reducing device provided in an embodiment of the present invention；
Fig. 2 is that the assembling in active active noise reducing device shown in FIG. 1 between resonance cavity main body, noise reduction cotton and noise reducing plate is closed
It is schematic diagram；
Fig. 3 is the first structure schematic diagram of active active noise reducing device cover plate shown in FIG. 1；
Fig. 4 is the second structure diagram of active active noise reducing device cover plate shown in FIG. 1；
Fig. 5 is the third structure diagram of active active noise reducing device cover plate shown in FIG. 1；
Fig. 6 is the first structure schematic diagram of resonance cavity main body in active active noise reducing device shown in FIG. 1；
Fig. 7 is the second structure diagram of resonance cavity main body in active active noise reducing device shown in FIG. 1；
Fig. 8 is the third structure diagram of resonance cavity main body in active active noise reducing device shown in FIG. 1；
Fig. 9 is the structure diagram of noise reducing plate in active active noise reducing device shown in FIG. 1；
Figure 10 is a kind of structural representation of the range hood with active active noise reducing device provided in an embodiment of the present invention
Figure.
Icon：100- active active noise reducing devices；110- resonant cavities；111- resonance cavity main bodies；The second oil leaks of 1111-
Hole；1112- Oil Guide channels；1113- partition boards；1114- mounting holes；1115- chamfering structures；1116- cable holes；112- is covered
Plate；The first oil leaking holes of 1121-；1122- groove structures；1123- borderline structures；1124- oil-containing grooves；120- loud speakers；
130- noise reduction cottons；140- noise reducing plates；141- third oil leaking holes；150- protects cableties；200- cannings；300- wind turbines fill
It puts；400- guards；500- exhaust fume collecting hoods.
Specific embodiment
Technical scheme of the present invention is clearly and completely described below in conjunction with attached drawing, it is clear that described implementation
Example is part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, ordinary skill
Personnel's all other embodiments obtained without making creative work, shall fall within the protection scope of the present invention.
In the description of the present invention, it should be noted that term " " center ", " on ", " under ", "left", "right", " vertical ",
The orientation or position relationship of the instructions such as " level ", " interior ", " outer " be based on orientation shown in the drawings or position relationship, merely to
Convenient for the description present invention and simplify description rather than instruction or imply signified device or element must have specific orientation,
With specific azimuth configuration and operation, therefore it is not considered as limiting the invention.In addition, term " first ", " second ",
" third " is only used for description purpose, and it is not intended that instruction or hint relative importance.
In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase
Even ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected or be integrally connected；It can
To be mechanical connection or be electrically connected；It can be directly connected, can also be indirectly connected by intermediary, Ke Yishi
Connection inside two elements.For the ordinary skill in the art, above-mentioned term can be understood at this with concrete condition
Concrete meaning in invention.
The present invention is described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.
Concrete structure is as shown in Fig. 1-Figure 10.
A kind of active active noise reducing device 100 provided in this embodiment, is applied in the suction with active active noise reduction system
In kitchen ventilator, which is arranged on the lower section of cooking-fume exhauster blower device 300, the top of guard 400,
Including resonant cavity 110 and loud speaker 120, loud speaker 120 is arranged in resonant cavity 110, the control of the loud speaker 120 and range hood
Device electrical connection processed, can make loud speaker 120 launch what is mutually neutralized with noise sound wave by the control action of control device
Noise reduction sound wave, to realize noise reduction.
Further, the oil circuit for dredging sump oil is provided on resonant cavity 110, so, from blower fan apparatus 300
The sump oil of drippage is accepted by resonant cavity 110, and sump oil is collected and is imported into together in the canning 200 of range hood, most
Lubricating cup is flowed into eventually to be collected, and is effectively alleviated the sump oil on blower fan apparatus 300 and is directly dropped on guard 400, and from guard
The problem of being dropped onto on hearth on 400, seriously affecting range hood and hearth health and blocked to guard 400.
The present embodiment makes it both meet active active system by carrying out structure design to active active device, improving
Design, installation, application requirement, while normal active active noise reduction effect is not interfered with again, it is most important that, it can be to wind
The sump oil dripped on machine device 300 is dredged, and sump oil is made to be flowed along the oil circuit on resonant cavity 110, is filled by way of shell
It puts 200 and flows ultimately into lubricating cup and be collected, solve the problems, such as range hood oil dripping, oil leak.
In the optional technical solution of the present embodiment, oil circuit includes at least the first oil leaking hole 1121,1111 and of the second oil leaking hole
Oil Guide channel 1112, the first oil leaking hole 1121 are set to the top of resonant cavity 110, and the second oil leaking hole 1111 is set to resonant cavity
110 bottom, and connected between the first oil leaking hole 1121 and the second oil leaking hole 1111 by Oil Guide channel 1112；Blower fan apparatus
300 sump oils being dropped on resonant cavity 110 pass through the first oil leaking hole 1121,1112 and second oil leaking hole 1111 of Oil Guide channel successively
Canning 200 is imported, and is flowed into lubricating cup.
Specifically, the oil circuit on resonant cavity 110 is mainly made of multiple oil leaking holes and Oil Guide channel 1112, include at least
First oil leaking hole 1121, the second oil leaking hole 1111 and Oil Guide channel 1112, wherein, the first oil leaking hole 1121 is arranged on resonant cavity
110 top, the second oil leaking hole 1111 is arranged on the bottom of resonant cavity 110, and passes through Oil Guide channel between two oil leaking holes
1112 connections, as a result, when sump oil is dripped from blower fan apparatus 300, are accepted by resonant cavity 110, are then flowed into first
Oil leaking hole 1121, and imported into canning 200 by 1112 and second oil leaking hole 1111 of Oil Guide channel successively, it finally flows into
It is collected in lubricating cup, effectively alleviates the sump oil on blower fan apparatus 300 and directly drop on guard 400 and dripped from guard 400
On hearth, the problem of not only having influenced health but also easily blocked guard 400.
In the optional technical solution of the present embodiment, the top of resonant cavity 110 offers groove structure 1122, and the first oil leak
Hole 1121 is set in groove structure 1122.
In the present embodiment, in order to meet the installation requirement between resonant cavity 110 and blower fan apparatus 300, by resonant cavity 110
The arc-shaped structure of top design, the bottom shape of the arcuate structure and blower fan apparatus 300 match, and arcuate structure is filled with wind turbine
The arc of 300 bottoms is put using being arranged concentrically, thereby, it is possible to meet design, installation requirement.Further, groove structure 1122
It is specifically opened in around the first oil leaking hole 1121, and positioned at the lowest part of arcuate structure, in order to be dropped in arcuate structure side
Sump oil at edge can be pooled in groove structure 1122, and is flowed into the first oil leaking hole 1121 and exported, and effectively alleviate dirt
The problem of oil is accumulated at 110 top of resonant cavity.
In the optional technical solution of the present embodiment, the both sides in 110 top width direction of resonant cavity are separately provided for hindering
The borderline structure 1123 that blocked sewage oil is dripped from 110 top both sides of resonant cavity.
Specifically, the top of resonant cavity 110 can accept the sump oil dripped from blower fan apparatus 300, and resonant cavity 110 pushes up
The both sides of portion's length direction and the periphery of blower fan apparatus 300 are connected with each other, as a result, the both sides in 110 top width direction of resonant cavity
Need the both sides for being wider than blower fan apparatus 300.Specifically, it is more than the width of blower fan apparatus 300 by the width dimensions at 110 top of resonant cavity
Spend size 4-10mm, in order to be able to accept the sump oil of 300 both sides of blower fan apparatus drippage completely.It is preferred in the present embodiment, two
The difference of a width dimensions is 6mm, i.e., every side of 110 top width of resonant cavity exceeds blower fan apparatus 300 per side 3mm, so as to
The problem of sump oil of 300 side of blower fan apparatus is directly dropped on guard 400 can effectively be alleviated.Further, pass through resonance
The borderline structure 1123 of 110 both sides of chamber can stop that sump oil slides from both sides.
In the optional technical solution of the present embodiment, at least side in 110 top width direction of resonant cavity is provided with along width
The oil-containing groove 1124 of direction evagination, for accepting the sump oil of 300 side of blower fan apparatus drippage.
In order to preferably collect the sump oil of 300 both sides of blower fan apparatus drippage, in 110 top width of resonant cavity in the present embodiment
At least side in direction is provided with oil-containing groove 1124 raised outward, can be by wind turbine side by the setting of oil-containing groove 1124
The sump oil slid above is imported into groove structure 1122, and sump oil of being more convenient for is exported from the first oil leaking hole 1121.
In the optional technical solution of the present embodiment, the side of the bottom face of resonant cavity 110 along its length is to another lateral
Under be obliquely installed, and the angular range between the bottom face and horizontal plane of resonant cavity 110 be 5 ° -20 °.
It should be noted that it is easily bonded since the sump oil of the drippage of blower fan apparatus 300 enters 110 content of resonant cavity, to increase
Mobility, by the bottom face of resonant cavity 110 using being obliquely installed, bottom face horizontal by 5 ° of -20 ° of angles, including 5 °,
10 °, 15 °, 20 ° etc., it is preferred that θ uses 10 °, results in blockage so as to which sump oil is effectively prevent to hoard in resonant cavity 110
The problem of.
In the optional technical solution of the present embodiment, resonant cavity 110 includes resonance cavity main body 111 and cover board 112, cover board 112
Spiral-lock is on resonance cavity main body 111, and cover board 112 and the bottom of blower fan apparatus 300 are correspondingly arranged.
Design requirement, the installation requirement of loud speaker 120 and the setting requirements of oil circuit in view of resonant cavity 110, this reality
It applies in example and resonant cavity 110 is divided into two parts, including resonance cavity main body 111 and cover board 112,112 spiral-lock of cover board is in resonant cavity
Resonant cavity 110 is formed in main body 111.And it is separately positioned on cover board 112 and resonant cavity master for each structure on resonant cavity 110
On body 111, specially：
1st, cover board 112 is matched with wind turbine bottom, i.e., is adopted using arcuate structure, the arcuate structure and the arc of wind turbine bottom
With being arranged concentrically；
2nd, the first oil leaking hole 1121, groove structure 1122, borderline structure 1123 and oil-containing groove 1124 are arranged at cover board 112
On；
3rd, the second oil leaking hole 1111 is arranged on 111 bottom of resonance cavity main body, and Oil Guide channel 1112 is arranged on resonance cavity main body
Inside 111.
In addition, in order to improve noise reduction, can one group or multigroup loud speaker 120 be set according to actual conditions, accordingly
, setting is one or more groups of and 120 corresponding cavity of loud speaker, loud speaker 120 are embedded in the bottom of resonance cavity main body 111,
Thus, it is desirable to open up mounting hole 1114, and loud speaker 120 is embedded in the bottom of resonance cavity main body 111, and carried out by screw
Fastening so that in the overwhelming majority merging resonance cavity main bodies 111 of loud speaker 120, and outlet sound mouth is then outwardly, in order to loud speaker
120 sound waves generated transmit outward, to achieve the purpose that neutralize noise.
Consider range hood inner space and whole noise reduction, two loud speakers 120 be set in the present embodiment,
The bottom of resonance cavity main body 111 is disposed side by side on, and in order to alleviate the sound wave of two generations of loud speakers 120 in resonance cavity main body
The problem of sound is altered in 111, is interfered with each other, in the present embodiment in resonance cavity main body 111 setting partition board 1113,1113 energy of partition board
Enough that resonance cavity main body 111 is separated to form two chambers, so, the sound wave that two loud speakers 120 generate can not mutually disorderly
It alters, so as to alleviate the problem of altering sound.
In the present embodiment, needed out of chamber using wired connection mode, connecting line between loud speaker 120 and control device
It passes through, to realize cabling and preventing from altering sound, cable hole has been opened up on the side wall of partition board 1113 and resonance cavity main body 111
1116, and shield cableties 150 are filled in cable hole 1116, the cabling requirement of connecting line was not only met, but also two chambers will not be made
Inside alter sound.
It is flowed furthermore, it is contemplated that the setting of resonant cavity 110 can influence gas in air duct, in the present embodiment, by resonant cavity master
Chamfering structure 1115 is set between the side and bottom surface of body 111, it is smooth in order to gas channel, slow down air-flow to resonant cavity master
The impact of 111 bottom of body, the air performance for further ensuring range hood is unaffected, while reduces the impulse noise of air-flow
Sound.
In the optional technical solution of the present embodiment, the noise reducing plate 140 with noise reduction hole is additionally provided on resonant cavity 110, is dropped
It makes an uproar and the third oil leaking hole 141 being correspondingly arranged with the second oil leaking hole 1111 is offered on plate 140, the dirt of the second oil leaking hole 1111 outflow
Oil flows into canning 200 by third oil leaking hole 141, and flows into lubricating cup.
To improve noise reduction, noise reducing plate 140, the noise reducing plate 140 are provided in the bottom of resonant cavity 110 in the present embodiment
On offer several noise reduction holes, on the one hand, these noise reduction holes disclosure satisfy that loud speaker 120 generate sound wave transmit outward will
It asks, on the other hand, when sound wave passes through noise reduction hole, high frequency sound wave therein can be influenced by noise reduction hole, thus high to reducing
The noise that frequency sound wave generates plays the role of certain processing.
It should be noted that the through-hole rate on noise reduction hole on noise reducing plate 140 should be not less than 3%, through actual verification, this reality
It is 11.7% to apply final preferred through-hole rate in example, to play the effect for preferably reducing high frequency sound wave.
Further, since noise reducing plate 140 is arranged on the bottom of resonant cavity 110, and the second oil leaking hole on resonant cavity 110
Sump oil in 1111 needs to be flowed into canning 200, and oil circuit can also include third oil leaking hole 141 as a result, in noise reducing plate
Third oil leaking hole 141 is provided on 140, and third oil leaking hole 141 is oppositely arranged with the second oil leaking hole 1111, in order to which sump oil passes through
Cross the second oil leaking hole 1111, third oil leaking hole 141 and be flowed into canning 200, be finally collected by lubricating cup.
In the optional technical solution of the present embodiment, the noise reduction cotton being correspondingly arranged with noise reducing plate 140 is provided on resonant cavity 110
130, and noise reduction cotton 130 is covered at the outlet sound mouth of loud speaker 120.
On the basis of noise reducing plate 140 is set, to further improve the high frequency sound wave of the processing generation of loud speaker 120, this reality
It applies example and noise reduction cotton 130 is provided with also at the outlet sound mouth of loud speaker 120, one can be played to high frequency sound wave by noise reduction cotton 130
Fixed suction-operated, as a result, under 130 collective effect of noise reducing plate 140 and noise reduction cotton, the high frequency sound wave that loud speaker 120 generates obtains
To good processing, effectively alleviate and new noise is led to the problem of by loud speaker 120, further functioned as the effect of noise reduction.
A kind of range hood provided in this embodiment, including canning 200, blower fan apparatus 300, guard 400, exhaust fume collecting hood
500 and active active noise reducing device 100, wherein, blower fan apparatus 300 is fixedly mounted in canning 200, active active noise reduction
Device 100 is fixedly mounted on the lower section of blower fan apparatus 300, and is correspondingly arranged about 300 with blower fan apparatus, exhaust fume collecting hood 500 and outer
Housing apparatus 200 is connected, and guard 400 is fixedly mounted on exhaust fume collecting hood 500, and positioned at the lower section of active active noise reducing device 100.
So, the noise reducing wave energy that active active noise reducing device 100 generates enough is cancelled out each other with the noise sound wave in air duct, is reached
The purpose of noise reduction.
The work of active active noise reduction system and range hood provided in this embodiment with active active noise reducing device 100
It is as principle：
Loud speaker 120 in the active active noise reducing device 100 is electrically connected with range hood control device, also, actively
Active resonant system further includes Noise Acquisition element, which is equally electrically connected with control device；Work as range hood
During unlatching, Noise Acquisition element can acquire the noise in range hood, and noise, the air-flow generated including blower fan apparatus 300 is hit
Impact noise of air channel structure, guard 400 etc. is hit, and the noise of acquisition is passed into control device in a manner of electric signal, is controlled
Device processed is by noise reduction audio signal at collected noise signal calculating, and the control that input control loud speaker 120 plays accordingly
Signal so that loud speaker 120 can send out corresponding noise reduction sound wave, and the noise reduction sound wave is identical with the sonic wave amplitude of noise, phase
On the contrary, the opposite sound wave of two such is cancelled out each other, so as to play the purpose of noise reduction.
In addition to this, the technical advantage and effect which is reached include above-mentioned active active noise reducing device 100
The technical advantage and effect reached, herein without repeating.
Finally it should be noted that：The above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe is described in detail the present invention with reference to foregoing embodiments, it will be understood by those of ordinary skill in the art that：Its according to
Can so modify to the technical solution recorded in foregoing embodiments either to which part or all technical features into
Row equivalent replacement；And these modifications or replacement, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of active active noise reducing device (100), applied in the range hood with active active noise reduction system, this is actively
Active noise reducing device (100) is set between blower fan apparatus (300) and guard (400), including resonant cavity (110) and is arranged on altogether
The loud speaker (120) to shake on chamber (110) and for emitting noise reduction sound wave, which is characterized in that be provided on the resonant cavity (110)
For dredging the oil circuit of sump oil；
Sump oil on the blower fan apparatus (300) is dropped on the resonant cavity (110), and range hood is imported by the oil circuit
Canning (200), and flow into lubricating cup.
2. active active noise reducing device (100) according to claim 1, which is characterized in that the oil circuit includes at least the
One oil leaking hole (1121), the second oil leaking hole (1111) and Oil Guide channel (1112), first oil leaking hole (1121) are set to institute
The top of resonant cavity (110) is stated, second oil leaking hole (1111) is set to the bottom of the resonant cavity (110), and described
It is connect between one oil leaking hole (1121) and second oil leaking hole (1111) by the Oil Guide channel (1112)；
The sump oil that the blower fan apparatus (300) is dropped on the resonant cavity (110) passes through first oil leaking hole successively
(1121), the Oil Guide channel (1112) and second oil leaking hole (1111) import the canning (200), and flow into oil
In cup.
3. active active noise reducing device (100) according to claim 2, which is characterized in that the resonant cavity (110) it is upper
Groove structure (1122) is offered, and first oil leaking hole (1121) is set in the groove structure (1122).
4. active active noise reducing device (100) according to claim 1, which is characterized in that resonant cavity (110) width
The both sides in direction are separately provided for blocking sump oil from the borderline structure of both sides drippage at the top of the resonant cavity (110)
(1123)。
5. active active noise reducing device (100) according to claim 1, which is characterized in that resonant cavity (110) width
At least side in direction is provided with the oil-containing groove (1124) of evagination in the width direction, for accepting the blower fan apparatus (300) side
The sump oil of portion's drippage.
6. active active noise reducing device (100) according to claim 1, which is characterized in that the bottom of the resonant cavity (110)
The side of end face along its length is sloped downwardly setting, and the bottom face of the resonant cavity (110) and the level to another
Angular range between face is 5 ° -20 °.
7. according to claim 1-6 any one of them active active noise reducing devices (100), which is characterized in that the resonant cavity
(110) including resonance cavity main body (111) and cover board (112), cover board (112) spiral-lock resonates described on cavity main body (111),
And the cover board (112) and the bottom of the blower fan apparatus (300) are correspondingly arranged.
8. active active noise reducing device (100) according to claim 2, which is characterized in that on the resonant cavity (110) also
The noise reducing plate (140) with noise reduction hole is provided with, it is right with second oil leaking hole (1111) to be offered on the noise reducing plate (140)
The third oil leaking hole (141) that should be set；
The sump oil of second oil leaking hole (1111) outflow flows into the canning by the third oil leaking hole (141)
(200), it and flows into lubricating cup.
9. active active noise reducing device (100) according to claim 8, which is characterized in that set on the resonant cavity (110)
The noise reduction cotton (130) being correspondingly arranged with the noise reducing plate (140) is equipped with, and the noise reduction cotton (130) is covered in the loud speaker
(120) at outlet sound mouth.
10. a kind of range hood, which is characterized in that including claim 1-9 any one of them active active noise reducing devices
(100)。
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198990.2A CN108167910A (en) | 2018-03-12 | 2018-03-12 | Active active noise reducing device and range hood |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810198990.2A CN108167910A (en) | 2018-03-12 | 2018-03-12 | Active active noise reducing device and range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108167910A true CN108167910A (en) | 2018-06-15 |
Family
ID=62510927
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810198990.2A Pending CN108167910A (en) | 2018-03-12 | 2018-03-12 | Active active noise reducing device and range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108167910A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448691A (en) * | 2018-11-22 | 2019-03-08 | 南京大学 | A method of active acoustic radiation control system noise reduction is improved using partition wall |
| CN111207112A (en) * | 2020-01-07 | 2020-05-29 | 宁波方太厨具有限公司 | Centrifugal fan and range hood with same |
| WO2021212877A1 (en) * | 2020-04-24 | 2021-10-28 | 广东美的白色家电技术创新中心有限公司 | Active noise reduction device, indoor electrical appliance system and active noise reduction method |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152164Y (en) * | 1993-03-26 | 1994-01-05 | 浙江省鄞县林中屋家用电器厂 | Air guided strong suction power noiseless fume exhuasting fan |
| CN2195709Y (en) * | 1994-03-11 | 1995-04-26 | 江照政 | Silencing and oil filtering device for fume exhauster |
| US20060278216A1 (en) * | 2005-06-08 | 2006-12-14 | Gagas John M | Range hood |
| EP1918646A1 (en) * | 2006-10-30 | 2008-05-07 | Elica S.P.A. | Functional structure for extractor hoods |
| CN101457946A (en) * | 2007-12-11 | 2009-06-17 | 宁波方太厨具有限公司 | Bionic micropore noise reduction structure for smoke exhaust system |
| KR20110052935A (en) * | 2009-11-13 | 2011-05-19 | 주식회사 하츠 | Noise reduction range hood |
| CN202188543U (en) * | 2011-07-18 | 2012-04-11 | 海尔集团公司 | Range hood with active noise reducing device |
| CN202328450U (en) * | 2011-11-24 | 2012-07-11 | 浙江苏泊尔家电制造有限公司 | Spiral case with flow stabilization and denoising functions |
| CN103697512A (en) * | 2013-11-30 | 2014-04-02 | 宁波方太厨具有限公司 | Silent range hood |
| JP2015148420A (en) * | 2014-02-10 | 2015-08-20 | パナソニックＩｐマネジメント株式会社 | range hood |
| CN106051872A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Extractor hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN107166458A (en) * | 2017-04-24 | 2017-09-15 | 杭州老板电器股份有限公司 | A kind of lampblack absorber of active active noise reduction |
| CN107575921A (en) * | 2017-10-31 | 2018-01-12 | 张家平 | Lampblack absorber fan cleaning structure |
| CN206959091U (en) * | 2017-07-20 | 2018-02-02 | 杭州老板电器股份有限公司 | Double air-inlet range hood and fume-exhausting systems |
| CN207936206U (en) * | 2018-03-12 | 2018-10-02 | 杭州老板电器股份有限公司 | Active active noise reducing device and range hood |
-
2018
- 2018-03-12 CN CN201810198990.2A patent/CN108167910A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2152164Y (en) * | 1993-03-26 | 1994-01-05 | 浙江省鄞县林中屋家用电器厂 | Air guided strong suction power noiseless fume exhuasting fan |
| CN2195709Y (en) * | 1994-03-11 | 1995-04-26 | 江照政 | Silencing and oil filtering device for fume exhauster |
| US20060278216A1 (en) * | 2005-06-08 | 2006-12-14 | Gagas John M | Range hood |
| EP1918646A1 (en) * | 2006-10-30 | 2008-05-07 | Elica S.P.A. | Functional structure for extractor hoods |
| CN101457946A (en) * | 2007-12-11 | 2009-06-17 | 宁波方太厨具有限公司 | Bionic micropore noise reduction structure for smoke exhaust system |
| KR20110052935A (en) * | 2009-11-13 | 2011-05-19 | 주식회사 하츠 | Noise reduction range hood |
| CN202188543U (en) * | 2011-07-18 | 2012-04-11 | 海尔集团公司 | Range hood with active noise reducing device |
| CN202328450U (en) * | 2011-11-24 | 2012-07-11 | 浙江苏泊尔家电制造有限公司 | Spiral case with flow stabilization and denoising functions |
| CN103697512A (en) * | 2013-11-30 | 2014-04-02 | 宁波方太厨具有限公司 | Silent range hood |
| JP2015148420A (en) * | 2014-02-10 | 2015-08-20 | パナソニックＩｐマネジメント株式会社 | range hood |
| CN106051872A (en) * | 2016-07-22 | 2016-10-26 | 宁波方太厨具有限公司 | Extractor hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN107166458A (en) * | 2017-04-24 | 2017-09-15 | 杭州老板电器股份有限公司 | A kind of lampblack absorber of active active noise reduction |
| CN206959091U (en) * | 2017-07-20 | 2018-02-02 | 杭州老板电器股份有限公司 | Double air-inlet range hood and fume-exhausting systems |
| CN107575921A (en) * | 2017-10-31 | 2018-01-12 | 张家平 | Lampblack absorber fan cleaning structure |
| CN207936206U (en) * | 2018-03-12 | 2018-10-02 | 杭州老板电器股份有限公司 | Active active noise reducing device and range hood |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109448691A (en) * | 2018-11-22 | 2019-03-08 | 南京大学 | A method of active acoustic radiation control system noise reduction is improved using partition wall |
| CN111207112A (en) * | 2020-01-07 | 2020-05-29 | 宁波方太厨具有限公司 | Centrifugal fan and range hood with same |
| CN111207112B (en) * | 2020-01-07 | 2021-10-01 | 宁波方太厨具有限公司 | Centrifugal fan and range hood with same |
| WO2021212877A1 (en) * | 2020-04-24 | 2021-10-28 | 广东美的白色家电技术创新中心有限公司 | Active noise reduction device, indoor electrical appliance system and active noise reduction method |
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