CN209672410U - A kind of low noise side extraction cooking fume extractor - Google Patents
A kind of low noise side extraction cooking fume extractor Download PDFInfo
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- CN209672410U CN209672410U CN201920309724.2U CN201920309724U CN209672410U CN 209672410 U CN209672410 U CN 209672410U CN 201920309724 U CN201920309724 U CN 201920309724U CN 209672410 U CN209672410 U CN 209672410U
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- air inlet
- low noise
- collecting hood
- extraction cooking
- fume collecting
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Abstract
The utility model discloses a kind of low noise side extraction cooking fume extractors, including the outer outlet body above air duct, exhaust fume collecting hood and exhaust fume collecting hood, air inlet is provided on exhaust fume collecting hood, air duct is provided with air inlet, the fan section in air duct is located in the exhaust fume collecting hood, is partially located in the outer outlet body, makes to be separated from each other between air inlet and air inlet, acute angle folded by the line and horizontal direction on the upper edge on the upper edge and air inlet of air inlet is greater than or equal to 30 °, is less than or equal to 45 °.The utility model is separated by setting air inlet with air inlet, plays the role of barrier to the noise transmission inside range hood；In addition, acute angle folded by the line and horizontal direction on the upper edge on the upper edge and air inlet of air inlet is greater than or equal to 30 °, less than or equal to 45 °, while not influencing fume exhaust efficiency, it reduces the noise at cooking-fume exhauster blower volute tongue and passes to air inlet, this reduces the noises of air inlet to reduce noise to the adverse effect of user.
Description
Technical field
The utility model relates to a kind of low noise side extraction cooking fume extractors.
Background technique
Current market sales of range hood is divided into two types substantially, one is top-sucking kitchen ventilator, one is
Side extraction cooking fume extractor, either top-sucking kitchen ventilator or side extraction cooking fume extractor can all have noise in use
It generates.By taking side extraction cooking fume extractor as an example, in the process of work, the main source of noise is with snail to side extraction cooking fume extractor
Ducting system based on shell and blower, the noise that ducting system generates mainly have following a few classes: one, kitchen ventilator in operational process,
Air-flow forms Turbulent Boundary Layer, the pressure pulse of air turbulence acts on spiral case in boundary-layer when flowing through spiral case interior surface
Inner surface generates noise；Two, in ducting system, since motor can generate vibration during rotation, vibration passes through motor installation
Point passes to spiral case, and then generates noise.The spiral case surface biggish region of the noise sound intensity be mainly spiral case arcwall face and close to go out
It is boundary between arc-shaped cavity and direct current chamber at the front and back panel in air port, especially blower volute tongue, noise is larger.And noise exists
Influence user usage experience while can also be had an impact to the health of user, so the noise reduction problem of range hood at
For urgent problem to be solved.
It solves the problems, such as that range hood noise is big, is limited to the volume of range hood itself, allows noise source far from oil suction
Smoke machine air inlet becomes a kind of effective solution scheme, and still, due to noise source inherently blower, blower is too far from air inlet
The efficiency of fume-exhausting will be reduced, so to reduce making an uproar for range hood while not influencing fume exhaust efficiency
Sound.
Utility model content
In view of the problems of the existing technology, the purpose of this utility model is to provide a kind of low noise side-suction type fume-exhaustings
Machine, while not influencing fume exhaust efficiency, reduce air inlet of kitchen ventilator at noise come reduce noise to
The adverse effect at family.
To achieve the above object, technical solutions of the utility model are as follows:
A kind of low noise side extraction cooking fume extractor, including the outer outlet body above air duct, exhaust fume collecting hood and exhaust fume collecting hood, the collection
Air inlet is provided on petticoat pipe, the air duct is provided with air inlet, and the part in the air duct is located in the exhaust fume collecting hood, part position
In in the outer outlet body, making to be separated from each other between the air inlet and air inlet, upper edge and the air inlet of the air inlet
Upper edge line and horizontal direction folded by acute angle be greater than or equal to 30 °, be less than or equal to 45 °.
Further, it is less than or equal on the air inlet along 30mm is greater than or equal at a distance from edge on the air inlet of air duct
50mm。
Further, it is lower than the height of air duct volute tongue present position on the air inlet along the height of projection in the horizontal direction
Degree.
Further, the exhaust fume collecting hood includes front apron, side baffle and slot, and front apron, front apron are provided with before air inlet
Two sides are provided with side baffle, and side baffle is inserted in slot, can stretch with the folding of front apron.
Further, the side baffle is arc panel, and the size of side baffle is adapted with slot.
It further, is rigid connection between the front apron and side baffle.
Further, the range hood internal body is provided with support component in slot position, rises for side dams solid
Determine supporting role.
Further, ball is provided in the support component.
Further, the exhaust fume collecting hood is a structure being recessed to internal body, including the main panel for installing air inlet.
Further, the top of exhaust fume collecting hood main panel is arranged in the air inlet.
The utility model by setting air duct a part be located in exhaust fume collecting hood, another part is located in outer outlet body, make into
It is separated from each other between air port and air inlet, air duct is arranged in exhaust fume collecting hood in such setting compared with the existing technology, this is practical
The novel position by air duct is promoted, and the space utilization rate inside range hood is increased, correspondingly, the volume in air duct can be appropriate
Increase, power is promoted accordingly, increases the efficiency of fume-exhausting in this way；Meanwhile air inlet is separated from each other with air inlet, for inhaling
Noise transmission inside kitchen ventilator has barrier action, plays the effect of noise reduction.In addition, upper edge and suction by setting air inlet
Acute angle folded by the line and horizontal direction on the upper edge in air port is greater than or equal to 30 °, is less than or equal to 45 °, is not influencing fume-exhausting
While machine fume-exhausting efficiency, reduces the noise at cooking-fume exhauster blower volute tongue and pass to air inlet, this reduces air inlets
The noise at place is to reduce noise to the adverse effect of user.And above-mentioned angle setting can be realized such effect be because
It is mainly to be realized by air inlet that noise in blower transmits outward, when user, air inlet and noise source are located at same direction
When, noise can be apparent.It is pressed from both sides formed by line and horizontal direction of the edge with the upper edge of air inlet on air inlet in the utility model
The variation of angular region leads to the change of air inlet Yu fan induced draught mouth relative position, to change the height of noise source and air inlet
Position avoids the noise generated at noise source from being directly delivered to air inlet.Such angle setting, is obtained by many experiments
, when the angle be greater than 45 ° when, air inlet relative to blower volute tongue too on the lower, although at volute tongue noise will not directly from
Air inlet is transmitted to user, but air inlet too causes the air quantity in air duct to have loss, air inlet and fan induced draught mouth on the lower
Position deviate, have quite a few oil smoke that can not be directly entered fan induced draught mouth, so that oil smoke loss, reduce fume-exhausting
The efficiency of machine fume-exhausting, meanwhile, the oil smoke of loss is made troubles to the cleaning of range hood；When the angle is less than 30 °, air inlet
Mouth can upwards relative to blower volute tongue, and the noise at such blower volute tongue directly can be transmitted to user from air inlet, to use
Bring adverse effect in family.When the angle is between 30 ° -45 °, air duct can be made while not influencing fume-exhausting efficiency
A part that noise is generated at volute tongue is passed through in the intracorporal reflection of range hood machine, after absorbing a part by range hood body,
User is transmitted to by air inlet again, can thus play the effect of noise reduction.
In the optimal technical scheme of the utility model, be arranged on air inlet along being greater than at a distance from edge on the air inlet of air duct or
Equal to 30mm, it is less than or equal to 50mm, it is such to be arranged also for the efficiency and noise reduction for taking into account fume-exhausting.Because of existing skill
In art, exhaust fume collecting hood air inlet with fan induced draught mouth be not between the two it is parallel, the variation of the distance can cause above-mentioned angle
Variation, the variation of the distance is carried out among above-mentioned angle change range, when the distance be less than 30mm when, will cause wind
The loss of road air quantity reduces the effect of noise reduction when the distance is greater than 50mm.
In the further optimal technical scheme of the utility model, the height on air inlet along projection in the horizontal direction is lower than
The height of air duct volute tongue present position, such setting can make a part for generating noise at the volute tongue of air duct by fume-exhausting
Machine body internal reflection is transmitted to user by air inlet again after absorbing a part by range hood body, plays the effect of noise reduction.
In the further optimal technical scheme of the utility model, exhaust fume collecting hood front apron two sides are provided with side baffle, side block
Plate is inserted in slot, and after smoke machine starting, front apron is opened, and the side baffle of two sides stretches out therewith, and the side baffle of two sides is to preceding
Baffle its arrive supporting role while, with front apron to oil smoke formed three faces hold together poly- effect, increase range hood absorb oil
The efficiency of cigarette.
In addition, side baffle is arc panel, size is adapted with the slot of two sides, such to be arranged after side baffle stretching,
It prevents oil smoke from loss occurs from entering in range hood in the slot of two sides, and makes troubles to the cleaning of range hood.
Detailed description of the invention
Fig. 1 is the utility model side sectional view；
Fig. 2 is the utility model starting state schematic diagram；
Fig. 3 is the utility model rear structure schematic diagram.
Specific embodiment
For the design philosophy for clearly demonstrating the utility model, the utility model is illustrated below with reference to example.
Embodiment one
In example as shown in Figure 1, a kind of low noise side extraction cooking fume extractor of the utility model, including air duct 7, exhaust fume collecting hood
3 and the top of exhaust fume collecting hood 3 outer outlet body 5-1, be provided with air inlet 3-1 on the exhaust fume collecting hood 3, air duct 7 is provided with air inlet 7-
1,7 part of air duct is located in the exhaust fume collecting hood 3, is partially located in the outer outlet body 5-1, makes the air inlet 3-1 and inhales
It is separated from each other between the 7-1 of air port, folded by the line and horizontal direction on the upper edge on the upper edge and air inlet 7-1 of the air inlet 3-1
Acute angle is greater than or equal to 30 °, is less than or equal to 45 °.
As shown in Figure 1, the lower end in air duct 7 is fixedly mounted on the rear wall of body 5 of range hood by screw, air duct
7 upper part is connect on the outer outlet body 5-1 that 3 top of exhaust fume collecting hood is arranged in flue.It is such be arranged make the air inlet in air duct 7 with
7-1 is separated with air inlet 3-1.Air duct 7 is arranged in exhaust fume collecting hood 3 in such setting compared with the existing technology, this is practical
The novel position by air duct 7 is promoted, and the space utilization rate inside range hood is increased, correspondingly, the volume in air duct 7 can fit
Work as increase, power is promoted accordingly, increases the efficiency of fume-exhausting in this way；Meanwhile air inlet 7-1 and air inlet 3-1 mutually divides
From having barrier action for the noise transmission inside range hood, play the effect of noise reduction.
Referring to Fig. 1, by being arranged folded by line and horizontal direction of the upper edge of air inlet 3-1 with the upper edge of air inlet 7-1
Acute angle a is greater than or equal to 30 °, is less than or equal to 45 °, while not influencing fume exhaust efficiency, reduces fume-exhausting
Noise at machine blower volute tongue passes to air inlet 3-1, this reduces the noise at air inlet 3-1 to reduce noise to
The adverse effect at family.And it is because the noise in blower transmits mainly outward that above-mentioned angle setting, which can be realized such effect,
It is to be realized by air inlet 3-1, when user, air inlet 3-1 and noise source are located at same straight line, noise can be apparent.This
In utility model on air inlet 3-1 the angular range formed by the line and horizontal direction with the upper edge of air inlet 7-1 variation
Lead to the change of air inlet 3-1 Yu fan induced draught mouth relative position, thus change the height and position of noise source and air inlet 3-1,
The noise generated at noise source is avoided to be directly delivered to air inlet 3-1.Such angle setting, is obtained by many experiments
, when the angle be greater than 45 ° when, air inlet 3-1 relative to blower volute tongue too on the lower, although noise will not be direct at volute tongue
It is transmitted to user from air inlet 3-1, but air inlet 3-1 too causes the air quantity in air duct 7 to have loss, air inlet 3-1 on the lower
It is deviated with the position of fan induced draught mouth 7-1, has quite a few oil smoke that can not be directly entered fan induced draught mouth 7-1, so that
Oil smoke loss reduces the efficiency of fume exhaust, meanwhile, the oil smoke of loss is made troubles to the cleaning of range hood；When
When the angle is less than 30 °, air inlet 3-1 relative to blower volute tongue can upwards, noise at such blower volute tongue can directly from
It is transmitted to user at air inlet 3-1, brings adverse effect to user.It, can be in not shadow when the angle is between 30 ° -45 °
While ringing fume-exhausting efficiency, a part for generating noise at 7 volute tongue of air duct is made to pass through the reflection in range hood body 5,
After absorbing a part by range hood body 5, then user is transmitted to by air inlet 3-1, can thus play the effect of noise reduction
Fruit.
Embodiment two
In example as shown in Figure 1, a kind of low noise side extraction cooking fume extractor of the utility model, including air duct 7, exhaust fume collecting hood
3 and the top of exhaust fume collecting hood 3 outer outlet body 5-1, be provided with air inlet 3-1 on the exhaust fume collecting hood 3, air duct 7 is provided with air inlet 7-
1,7 part of air duct is located in the exhaust fume collecting hood 3, is partially located in the outer outlet body 5-1, makes the air inlet 3-1 and inhales
It is separated from each other between the 7-1 of air port, folded by the line and horizontal direction on the upper edge on the upper edge and air inlet 7-1 of the air inlet 3-1
Acute angle is greater than or equal to 30 °, is less than or equal to 45 °.
As shown in Figure 1, blackout is fixed on the rear wall of the body 5 of range hood by screw in the lower end in air duct 7, air duct
7 upper part is connect on the outer outlet body 5-1 that 3 top of exhaust fume collecting hood is arranged in flue.It is such be arranged make the air inlet in air duct 7 with
7-1 is separated with air inlet 3-1.Air duct 7 is arranged in exhaust fume collecting hood 3 in such setting compared with the existing technology, this is practical
The novel position by air duct 7 is promoted, and the space utilization rate inside range hood is increased, correspondingly, the volume in air duct 7 can fit
Work as increase, power is promoted accordingly, increases the efficiency of fume-exhausting in this way；Meanwhile air inlet 7-1 and air inlet 3-1 mutually divides
From having barrier action for the noise transmission inside range hood, play the effect of noise reduction.
At the same time, on air inlet 3-1 along with 7 air inlet 7-1 of air duct at a distance from edge more than or equal to 30mm, be less than or
It is such to be arranged also for the efficiency and noise reduction for taking into account fume-exhausting equal to 50mm.Because in the prior art, exhaust fume collecting hood 3 into
Air port 3-1 with 7 air inlet 7-1 of blower be not between the two it is parallel, the variation of the distance can cause the variation of above-mentioned angle,
The variation of the distance is carried out among above-mentioned angle change range, when the distance is less than 30mm, will cause air channel volume
Loss, when the distance be greater than 50mm when, reduce the effect of noise reduction.
Referring to fig. 2, the exhaust fume collecting hood 3 of the range hood in the utility model includes front apron 1, side baffle 2 and slot 4, into
Front apron 1 is provided with before the 3-1 of air port, 1 two sides of front apron are provided with side baffle 2, and side baffle 2 is inserted in slot 4, in range hood
When unlatching, side baffle 2 is opened simultaneously with front apron 1, is formed and is held together smoke chamber, when range hood is closed, side baffle 2 and front apron 1 one
With closing.Wherein, front apron 1 is fixedly connected with the side baffle 2 of two sides by screws bolts, and the side baffle 2 of two sides is arc panel,
The size of the arc panel is adapted with slot 4, and arc panel passes right through slot 4.
In above-mentioned example, 3 front apron of exhaust fume collecting hood, 1 two sides are provided with side baffle 2, side baffle 2 is inserted in slot 4, in cigarette
After machine starting, front apron 1 is opened, and the side baffle 2 of two sides stretches out therewith, and the side baffles 2 of two sides is to front apron 1, it is made to support
With while, with front apron 1 to oil smoke formed three faces hold together poly- effect, prevent oil smoke loss, increase range hood absorb oil
The efficiency of cigarette.In addition, side baffle 2 is arc panel, size is adapted with the slot 4 of two sides, and such setting is stretched out in side baffle 2
Afterwards, it prevents oil smoke from loss occurs from entering in range hood in the slot 4 of two sides, and comes not to the cleaning band of range hood
Just.
As shown in figure 3,5 inner right side slot of range hood body, 4 corresponding position is provided with support component 6, the support
6 side dams 2 of component are played a supporting role, and are provided with ball in support component 6, for assisting side baffle 2 to move, reduce side block
Frictional force between plate 2 and support component 2 prevents 2 serious wear of side baffle, protects side baffle 2.
As shown in Figure 1, exhaust fume collecting hood 3 is recessed to inside body 5, as shown in Fig. 2, exhaust fume collecting hood 3 includes for air inlet to be arranged
The top of main panel 3-2 is arranged in the main panel 3-2 of 3-1, air inlet 3-1.
In above-mentioned example, exhaust fume collecting hood 3 is inwardly recessed to form a smoke collecting chamber, is conducive to hold together cigarette, prevents oil smoke loss, improves
The efficiency of fume-exhausting, simultaneously as in the prior art, the position of range hood inner blower setting can be relatively top, air duct air draught
Mouthful position be higher than air inlet, in the present embodiment, air inlet 3-1 is arranged in the top of main panel 3-2, both ensure that complete machine
Air performance also reduces oil smoke path, promotes smoking effect.
Referring to Fig. 1, the upper edge of air inlet of kitchen ventilator 3-1 in the horizontal direction on projection height be lower than 7 volute tongue of air duct
The height of present position, such setting can make a part for generating noise at 7 volute tongue of air duct by 5 body of range hood machine
Internal reflection passes through air inlet oral instructions after absorbing a part by range hood body 5 and the metal plate being arranged in around the 7-1 of air inlet again
It is delivered to user, plays the effect of noise reduction.
It should be noted that some of which structure can have different selections other than the above-mentioned specific example provided.
Such as, the fixed form of range hood front apron 1 and side baffle 2 can be rigid connection, can also be flexible or elastic connection；Fume-exhausting
Slip friction mechanisms can be cancelled or be used to the support component 6 of pusher side baffle 2；The support component 6 of range hood can only installation one
It is a, it can also all be installed in two sides；Etc., and these are all those skilled in the art on the basis of understanding the utility model thought
It can be made based on its basic skills, therefore no longer enumerated herein.
Finally, it will be appreciated that embodiment of above is merely to illustrate that the principles of the present invention and uses
Illustrative embodiments, however the utility model is not limited thereto.For those of ordinary skills, it is not departing from
In the case where the principles of the present invention and essence, various changes and modifications can be made therein, these variations and modifications are also considered as this
The protection scope of utility model.
Claims (10)
1. a kind of low noise side extraction cooking fume extractor, which is characterized in that including the outer cover above air duct, exhaust fume collecting hood and exhaust fume collecting hood
Body is provided with air inlet on the exhaust fume collecting hood, and the air duct is provided with air inlet, and the air passage portion is located at the exhaust fume collecting hood
It is interior, partially it is located in the outer outlet body, makes to be separated from each other between the air inlet and air inlet, upper edge and the institute of the air inlet
State the upper edge of air inlet line and horizontal direction folded by acute angle be greater than or equal to 30 °, be less than or equal to 45 °.
2. low noise side extraction cooking fume extractor as described in claim 1, which is characterized in that edge and the wind on the air inlet
The distance on edge is greater than or equal to 30mm on road air inlet, is less than or equal to 50mm.
3. low noise side extraction cooking fume extractor as claimed in claim 2, which is characterized in that along level side on the air inlet
To projection height be lower than air duct volute tongue present position height.
4. low noise side extraction cooking fume extractor as described in claim 1, which is characterized in that the exhaust fume collecting hood include front apron,
Side baffle and slot are provided with front apron before the air inlet, and the front apron two sides are provided with side baffle, and the side baffle is inserted
In slot, it can stretch with the folding of the front apron.
5. low noise side extraction cooking fume extractor as claimed in claim 4, which is characterized in that the side baffle is arc panel, institute
The size for stating side baffle is adapted with the slot.
6. low noise side extraction cooking fume extractor as claimed in claim 5, which is characterized in that the front apron and the side baffle
Between for rigid connection.
7. low noise side extraction cooking fume extractor as claimed in claim 6, which is characterized in that the range hood internal body exists
The slot position is provided with support component, and the support component is for playing fixed supporting role to the side baffle.
8. low noise side extraction cooking fume extractor as claimed in claim 7, which is characterized in that be provided with rolling in the support component
Pearl.
9. low noise side extraction cooking fume extractor as described in claim 1, which is characterized in that the exhaust fume collecting hood is to the oil suction
The recessed structure of smoke machine internal body, including the main panel for installing the air inlet.
10. low noise side extraction cooking fume extractor as claimed in claim 9, which is characterized in that the air inlet is arranged described
The top of exhaust fume collecting hood main panel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920309724.2U CN209672410U (en) | 2019-03-12 | 2019-03-12 | A kind of low noise side extraction cooking fume extractor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920309724.2U CN209672410U (en) | 2019-03-12 | 2019-03-12 | A kind of low noise side extraction cooking fume extractor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209672410U true CN209672410U (en) | 2019-11-22 |
Family
ID=68571220
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920309724.2U Active CN209672410U (en) | 2019-03-12 | 2019-03-12 | A kind of low noise side extraction cooking fume extractor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209672410U (en) |
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2019
- 2019-03-12 CN CN201920309724.2U patent/CN209672410U/en active Active
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