CN208170467U - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
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- CN208170467U CN208170467U CN201820130132.XU CN201820130132U CN208170467U CN 208170467 U CN208170467 U CN 208170467U CN 201820130132 U CN201820130132 U CN 201820130132U CN 208170467 U CN208170467 U CN 208170467U
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- silencing means
- intake passage
- air intake
- range hood
- flapper
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Abstract
The utility model relates to a kind of range hoods, the exhaust fume collecting hood including casing and below casing, and casing internal is equipped with blower fan system, and blower fan system has advancing air channel and rear air intake passage, it is characterised in that：The flapper of air intake passage after casing internal is equipped with and can open or close is equipped with silencing means in the inside of exhaust fume collecting hood, and silencing means is set in rear air intake passage.The utility model has the advantage of：The casing internal of the range hood is equipped with the flapper that can open or close rear air intake passage, silencing means is installed in the inside of exhaust fume collecting hood, and the silencing means is set in rear air intake passage, when needing noise reduction, silencing means work, to reduce the noise of range hood Internal Flue；And when the flue of range hood is under big resistive state, flapper closes rear air intake passage, while silencing means works, thus the noise after more efficiently reducing in air intake passage.
Description
Technical field
The utility model relates to household appliance technical fields, and in particular to a kind of range hood.
Background technique
With the improvement of living standards, various household electrical appliance rapid proliferations, range hood has become can not in Modern Family
Or one of scarce machine for kitchen use equipment, for generated oil smoke in cooking stove cooking process to be discharged.
Currently, European type cooker hood generally includes blower, blower hood and the exhaust fume collecting hood below blower hood, blower
It include spiral case, impeller and the motor for driving impeller.This European type cooker hood uses single admission, thereby results in incoming air area
It is small, oil extraction smoke is smaller.In order to overcome the defect singly entered the wind, the range hood of both sides air inlet is disclosed in the prior art, such as specially
Disclosed in Chinese invention patent of the benefit number for 201110027636.1 (Authorization Notice No. CN102072515A)《One kind has
The range hood of air-suction double-injection acceleration function》, for the range hood with cabinet and exhaust fume collecting hood, cabinet is interior to be equipped with spiral case, spiral case
Interior to be equipped with impeller and motor, spiral case is equipped with advance air port and rear air inlet, exhaust fume collecting hood smoke-collecting area starting point to advance air port tool
There is the first oil smoke channel, exhaust fume collecting hood smoke-collecting area starting point to rear air inlet has the second oil smoke channel, the mouth in two oil smoke channels
Diameter gradually becomes smaller, and is conducive to that air-flow is accelerated to rise, accelerates oil smoke to be sucked away, so as to improve smoke absorption effect.However, due to being formed
Two oil smoke channels, oil smoke enters in blower from former and later two air inlets, and the noise of range hood is mainly derived from centrifugation
Blower interior, thus centrifugal blower in the process of work can be by two air inlets toward the biggish noise of external radiation.
In order to reduce noise, such as application No. is the middle promulgateds by the State Council of 200610050639.6 (Authorization Notice No. CN1844758A)
Bright patent《A kind of blower volute structure of European type cooker hood that can be double-faced ventilated》, the front shroud of the blower volute structure is in snail
The ratio between radius of curvature and the radius of curvature of edge contour of back shroud of edge contour at tongue are 8:18.5, volute tongue radius is in the past
Cover board is continuously increased to back shroud, forms a circular conical surface, while as the increasing tongue body bus of volute tongue radius is also relative to snail
Shell front and back axis generates inclination angle, is non-uniform, double-faced ventilated leaf since it is axially distributed to go out air-flow for the impeller of centrifugal blower
Wheel exit velocity, which is enclosed by front end to mid-game, to be become larger, then is gradually become smaller by mid-game to rear end circle, and this structure is for single air inlet
Centrifugal blower be reasonable, but for can both sides air inlet centrifugal blower it is improper, noise reduction effect is limited.
Therefore, it is necessary to be improved further to existing range hood.
Utility model content
For the current state of the art, the technical problem to be solved by the utility model is to provide one kind can be effectively reduced
The range hood of noise.
The utility model solves technical solution used by above-mentioned technical problem：A kind of range hood, including casing and
Exhaust fume collecting hood below casing, the casing internal are equipped with blower fan system, the blower fan system have advancing air channel and
Air intake passage afterwards, it is characterised in that：The active catch that the rear air intake passage can be opened or closed is installed in the casing internal
Plate is equipped with silencing means in the inside of the exhaust fume collecting hood, and the silencing means is set in the rear air intake passage.
Preferably, which includes the first driving mechanism to drive the flapper movement and driving institute
State the second driving mechanism of silencing means exhaust fume collecting hood movement relatively, and further include have to control the first driving mechanism and
The controller of second driving mechanism synchronous working.In this way, noise reduction dress can be opened simultaneously in air intake passage after opening or closing
It sets, so that the noise in range hood flue be effectively reduced.
There are many structure types of silencing means, it is preferable that the silencing means includes outer cover and is set in the outer cover
Acoustical cotton, the top of the outer cover offers multiple first through hole, and the exhaust fume collecting hood opens up on the position of the corresponding outer cover
There are multiple second through-holes, the first through hole and the second through-hole form the channel being connected with the rear air intake passage, described to disappear
Mixer is made laterally to move left and right under the driving of second driving mechanism, so that the channel correspondingly opens or closes.
In this way, opening or closing by control channel, to can more efficiently reduce range hood advance when needing noise reduction
Noise in wind channel and rear air intake passage.
There are many structure types of outer cover, it is preferable that the outer cover includes left plate, right side plate, front side board and company
The top plate in left plate, right side plate and front side board top edge is connect, described first is offered on the top plate and front side board
Through-hole, the exhaust fume collecting hood offer second through-hole on the position of the correspondence top plate and front side board.
It avoids loss air quantity simultaneously for the ease of water conservancy diversion oil smoke and reduces noise, it is preferable that the blower fan system includes
Spiral case, the spiral case include front shroud and back shroud, are connected between the front shroud and the lower edge of back shroud downwardly convex
Wind deflector out, the wind deflector include front flow guiding plate and rear deflector, and the front flow guiding plate is from top to bottom gradually to rear side
Inclination, the flapper are arranged in the top of the front flow guiding plate and move up and down along the front flow guiding plate, the rear deflector
On offer the aperture passed through for the flapper.In this way, oil smoke channel is divided into advancing air channel with after by wind deflector
Air intake passage not only plays the role of shunting, but also can drain, noise reduction, keeps air-flow more steady；In addition, at flue
When big resistance, flapper is moved downward along front flow guiding plate, thus air intake passage after closing, rear air intake passage forms noise reduction
Chamber, on the one hand, avoid wind loss, on the other hand, sound arrester carries out noise reduction to noise reduction cavity, to be effectively reduced noise.
In order to further decrease noise, it is preferable that deflector gradually rolls tiltedly forward from top to bottom after described, leads after described
Flowing plate is located in the rear air intake passage, and multiple noise reduction holes are offered on the rear deflector.
There are many structure types of second driving mechanism, it is preferable that second driving mechanism includes motor and stretches
Bar, one end of the telescopic rod are connected with the output end of the motor, and the other end is connected to the flapper.
In order to realize the clean and tidy of spiral case while reduce noise, it is preferable that it further include having oil guide pipe and catchment cup, the oil-collecting
Cup is mounted on the lower section on the exhaust fume collecting hood and being located at the silencing means, the oil leak of one end of the oil guide pipe and the spiral case
Hole is connected, and the other end is directed toward the opening of the catchment cup.The greasy dirt on spiral case is guided in catchment cup in this way, facilitating, just
In the cleaning of spiral case；The interference to flow of flue gas is reduced simultaneously, to create a further reduction noise.
Preferably, the perforation passed through for the oil guide pipe is offered on the silencing means, the silencing means can be opposite
The oil guide pipe relatively moves.
In order to increase smoke absorption effect, it is preferable that further include smoke deflector, the smoke deflector is set under exhaust fume collecting hood air inlet
Side.
Compared with prior art, the utility model has the advantage of：The casing internal of the range hood, which is equipped with, to be opened
Or after closing air intake passage flapper, silencing means is installed in the inside of exhaust fume collecting hood, and the silencing means be set to it is laggard
In wind channel, when needing noise reduction, silencing means work, to reduce the noise of range hood Internal Flue；And work as fume-exhausting
The flue of machine is under big resistive state, and flapper closes rear air intake passage, at the same silencing means work, thus more added with
Noise after effect ground reduces in air intake passage.
Detailed description of the invention
Fig. 1 is the structural schematic diagram under the range hood of the utility model embodiment is in running order；
Fig. 2 is the partial structure diagram of another angle of Fig. 1 (under channel is in the open state)；
Fig. 3 is that the utility model embodiment flapper is in the partial structure diagram under high location status；
Fig. 4 is that flapper is in the partial structure diagram under lower position state in the utility model embodiment；
Fig. 5 is the structural schematic diagram of another angle of Fig. 4 (channel is in close state down)；
Fig. 6 is that the range hood of the utility model embodiment is in the partial structure diagram under off working state；
Fig. 7 is the structural schematic diagram of the sound arrester of the utility model embodiment；
Fig. 8 is the dimensional decomposition structure diagram of the silencing means of the utility model embodiment；
Fig. 9 is the enlarged structure schematic diagram in the portion A in Fig. 2；
Figure 10 is the enlarged structure schematic diagram in the portion B in Fig. 5；
Figure 11 is the partial structure diagram of the spiral case of the utility model embodiment.
Specific embodiment
The utility model is described in further detail below in conjunction with figure embodiment.
As shown in Figure 1 to 11, the range hood of the utility model embodiment includes casing 1, exhaust fume collecting hood 2, oil guide pipe
7, catchment cup 8, smoke deflector 6, to drive flapper 5 to move the first driving mechanism 43, to drive silencing means 4 opposite
The second driving mechanism 50 and controller (not shown) that exhaust fume collecting hood 2 moves, wherein
Blower fan system is installed, blower fan system has advancing air channel 111 and rear air intake passage 112, in machine inside casing 1
The flapper 5 that rear air intake passage 112 can be opened or closed is installed inside shell 1；Blower fan system includes spiral case 3, the spiral case 3
Include front shroud 31 and back shroud 32, downwardly projecting wind deflector is connected between front shroud 31 and the lower edge of back shroud 32
33, wind deflector 33 includes front flow guiding plate 331 and rear deflector 332, and front flow guiding plate 331 gradually rolls tiltedly backward from top to bottom,
Flapper 5 is arranged in the top of front flow guiding plate 331 and moves up and down along the front flow guiding plate 331, offers on rear deflector 332
The aperture 330 passed through for flapper 5.
Exhaust fume collecting hood 2 is set to the lower section of casing 1, is equipped with silencing means 4 in the inside of exhaust fume collecting hood 2, and silencing means 4 is set to
Afterwards in air intake passage 112, which includes outer cover 42 and the acoustical cotton 41 in the outer cover 42, outer cover 42 it is upper
Portion offers multiple first through hole 420, and exhaust fume collecting hood 2 offers multiple second through-holes 20 on the position of the corresponding outer cover 42, has
Body, outer cover 42 includes left plate 421, right side plate 422, front side board 423 and is connected to left plate 421,422 and of right side plate
The top plate 424 of 423 top edge of front side board, front side board 423 gradually roll forward tiltedly from top to bottom, top plate 424 and front side board 423
On the first through hole 420 that offers, exhaust fume collecting hood 2 offers second logical on the position of corresponding top plate 424 and front side board 423
Hole 20, first through hole 420 and the second through-hole 20 form the channel 200 being connected with rear air intake passage 112, and silencing means 4 is the
Make laterally to move left and right under the driving of two driving mechanisms 50, so that the channel 200 correspondingly opens or closes.
In order to further decrease noise, the rear deflector 332 of the present embodiment gradually rolls forward tiltedly from top to bottom, rear water conservancy diversion
Plate 332 is located in rear air intake passage 112, and offers multiple noise reduction hole 332a on the rear deflector 332；I.e. when range hood
In flue under big resistive state, flapper 5 is moved downward along front flow guiding plate 331, i.e., flapper 5 is in lower position
State, the rear air intake passage 112 form noise reduction cavity, are absorbed by sound-absorbing structure 4 to the noise in noise reduction cavity, thus into one
Noise after step reduces in air intake passage 112.
In the present embodiment, controller is to control the first driving mechanism 43 and the second driving mechanism 50 synchronous working, wherein
There are many structure types of second driving mechanism, and in the present embodiment, the second driving mechanism 50 includes motor 501 and telescopic rod
502, one end of telescopic rod 502 is connected with the output end of motor 501, and the other end is connected to flapper 5；First driving mechanism
43 between exhaust fume collecting hood 2 and silencing means 4, and the drive output of the first driving mechanism 43 is connected on outer cover 42, noise reduction
Device 4 is made laterally to move left and right under the driving of the first driving mechanism 43.
In order to increase smoke absorption effect, smoke deflector 6 is set to the lower section of 2 air inlet of exhaust fume collecting hood, and can swing up and down.This
Sample, after opening range hood, smoke deflector 6 can swing to special angle, realize best smoke absorption effect, when fume-exhausting organ
After machine, smoke deflector 6 revert to initial position, gives user comfortable appearance impression.
In the present embodiment, catchment cup 8 is mounted on exhaust fume collecting hood 2 and is located at the lower section of silencing means 4, and the one of oil guide pipe 7
End is connected with the oil leaking hole 30 of spiral case 3, and the other end is directed toward at the opening 81 of catchment cup 8, specifically, offers on silencing means 4
For the perforation 40 that oil guide pipe 7 passes through, the opposite oil guide pipe 7 under the driving of the first driving mechanism 43 of silencing means 4 is relatively moved.
In the present embodiment, the course of work of range hood is as follows：
Under range hood is in running order, smoke deflector 6 is to lower swing, and when needing noise reduction, the first driving mechanism 43 is driven
The dynamic 4 lateral side-to-side movement of opposite exhaust fume collecting hood 2 of silencing means can make to lead to so that first through hole 420 and the second through-hole 20 align
Road 200 is opened, and the acoustical cotton 41 of silencing means 4 carries out sound-absorbing to the noise in the flue of range hood, so as to effectively
Reduce noise；When being under big resistive state in flue, flapper 5 is moved downward along front flow guiding plate 331, thus by laggard
Wind channel 112 is closed, and rear air intake passage 112 forms noise reduction cavity, and sound arrester 4 works, thus further to rear air intake passage 112
Sound-absorbing；After sound-absorbing, the first driving mechanism 43 drives silencing means 4 to move, and keeps first through hole 420 and the second through-hole 20 wrong
It opens, at this point, channel 200 is in close state.
Claims (9)
1. a kind of range hood, including casing (1) and the exhaust fume collecting hood (2) being set to below casing (1), peace inside the casing (1)
Equipped with blower fan system, the blower fan system has advancing air channel (111) and rear air intake passage (112), it is characterised in that：Institute
The flapper (5) for being equipped with inside casing (1) and the rear air intake passage (112) capable of being opened or closed is stated, in the exhaust fume collecting hood
(2) inside is equipped with silencing means (4), and the silencing means (4) is set in the rear air intake passage (112).
2. range hood according to claim 1, it is characterised in that：It include to drive the flapper (5) to transport
Second driving mechanism of relatively described exhaust fume collecting hood (2) movement of dynamic the first driving mechanism (43) and the driving silencing means (4)
It (50), and further include the controller having to control the first driving mechanism (43) and the second driving mechanism (50) synchronous working.
3. range hood according to claim 2, it is characterised in that：The silencing means (4) include outer cover (42) and
The top of acoustical cotton (41) in the outer cover (42), the outer cover (42) offers multiple first through hole (420), the collection
Petticoat pipe (2) offers multiple second through-holes (20), the first through hole (420) and second on the position of the corresponding outer cover (42)
Through-hole (20) forms the channel (200) being connected with the rear air intake passage (112), and the silencing means (4) is described second
Make laterally to move left and right under the driving of driving mechanism (50), so that the channel (200) correspondingly open or close.
4. range hood according to claim 3, it is characterised in that：The outer cover (42) includes left plate (421), the right side
Side plate (422), front side board (423) and it is connected to left plate (421), right side plate (422) and front side board (423) top edge
Top plate (424) offers the first through hole (420), the exhaust fume collecting hood on the top plate (424) and front side board (423)
(2) second through-hole (20) is offered on the position of the correspondence top plate (424) and front side board (423).
5. range hood according to claim 4, it is characterised in that：The blower fan system includes spiral case (3), the snail
Shell (3) includes front shroud (31) and back shroud (32), is connected between the front shroud (31) and the lower edge of back shroud (32)
Have downwardly projecting wind deflector (33), the wind deflector (33) includes front flow guiding plate (331) and rear deflector (332), described
Front flow guiding plate (331) gradually rolls tiltedly backward from top to bottom, and the flapper (5) is arranged in the front flow guiding plate (331)
It top and moves up and down along the front flow guiding plate (331), offers along deflector (332) after described and worn for the flapper (5)
The aperture (330) crossed.
6. range hood according to claim 5, it is characterised in that：It is described after deflector (332) from top to bottom gradually to
Front side inclination, the rear deflector (332) is located in the rear air intake passage (112), and offers on the rear deflector (332)
Multiple noise reduction holes (332a).
7. range hood according to claim 3, it is characterised in that：Second driving mechanism (50) includes motor
(501) it is connected with telescopic rod (502), one end of the telescopic rod (502) with the output end of the motor (501), the other end
It is connected to the flapper (5).
8. range hood according to claim 5, it is characterised in that：It further include having oil guide pipe (7) and catchment cup (8), institute
State the lower section that catchment cup (8) is mounted on the exhaust fume collecting hood (2) and is located at the silencing means (4), the one of the oil guide pipe (7)
End is connected with the oil leaking hole (30) of the spiral case (3), and the other end is directed toward at the opening (81) of the catchment cup (8).
9. range hood according to claim 8, it is characterised in that：It offers on the silencing means (4) and is led described in confession
The perforation (40) that oil pipe (7) passes through, the silencing means (4) can the relatively described oil guide pipe (7) relatively move.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130132.XU CN208170467U (en) | 2018-01-25 | 2018-01-25 | A kind of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820130132.XU CN208170467U (en) | 2018-01-25 | 2018-01-25 | A kind of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208170467U true CN208170467U (en) | 2018-11-30 |
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ID=64387383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820130132.XU Active CN208170467U (en) | 2018-01-25 | 2018-01-25 | A kind of range hood |
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| Country | Link |
|---|---|
| CN (1) | CN208170467U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081480A (en) * | 2018-01-25 | 2019-08-02 | 宁波方太厨具有限公司 | A kind of range hood |
-
2018
- 2018-01-25 CN CN201820130132.XU patent/CN208170467U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081480A (en) * | 2018-01-25 | 2019-08-02 | 宁波方太厨具有限公司 | A kind of range hood |
| CN110081480B (en) * | 2018-01-25 | 2024-02-20 | 宁波方太厨具有限公司 | Fume exhauster |
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