CN207455671U - A kind of range hood - Google Patents
A kind of range hood Download PDFInfo
- Publication number
- CN207455671U CN207455671U CN201721186267.XU CN201721186267U CN207455671U CN 207455671 U CN207455671 U CN 207455671U CN 201721186267 U CN201721186267 U CN 201721186267U CN 207455671 U CN207455671 U CN 207455671U
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- CN
- China
- Prior art keywords
- lower housing
- sound
- partition plate
- cavity
- range hood
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Abstract
The utility model discloses a kind of range hoods, are fixedly connected including babinet and positioned at the in vivo wind turbine of case and lower housing, lower housing with babinet, it is characterised in that：Cavity partition plate is further included, the cavity partition plate is fixedly mounted on inside lower housing, and lower housing is divided into first and second cavity, and cavity partition plate lower end is provided with air through hole, and air inlet is provided between lower housing and cavity partition plate upper end.Cavity partition plate increases significantly by flue gas flow channel, and sound transmission increases to the path in user's ear, is conducive to the aerial attenuation of sound, also can effective reducing noise.Air-flow through hole is arranged below cavity partition plate by the range hood, is hidden and is built in inside smoke machine, effectively improves the appearance of range hood.
Description
Technical field
The utility model belongs to a kind of range hood, is concretely related to a kind of range hood of mute noise reduction.
Background technology
In order to quickly detach oil smoke, health is protected, major range hood manufacturer is proposed Wind Volume successively
Range hood, with the raising of air quantity, the noise that range hood generates is also increasing.Range hood is opened when cooking just to listen not
Voice, phone sound, doorbell sound and child's sound or even this strong noise to others can make housewife and kitchen operation
Personnel generate adverse reactions, the long-time services such as irritated, headache, palpitaition and physical and mental health can be caused to seriously affect.Therefore noise into
For it is urgently to be resolved hurrily existing for existing range hood the technical issues of.With the raising that people require quality of the life, user is selecting
When purchasing range hood, the size of smoke machine noise parameters is increasingly paid close attention to.It may be said that the quality of smoke machine noiseproof feature is product competition
One big key factor of power.
Range hood generates the root of noise from blower fan system, and blower fan system noise mainly has two aspects, first, wind
The noise of machine in itself, second is that air-flow moves the noise sent when generating turbulent flow in volute of blower.The sound that user is perceived
Mainly transfer out how to reduce the influence of air inlet noise on human, become the pass for improving the experience of smoke machine noise by air inlet
Key method.
Utility model content
In view of the presence of problem above, the utility model provides a kind of range hood, have it is simple in structure, pumping can be reduced
The characteristics of cigarette noise.
A kind of range hood, including babinet and positioned at the in vivo wind turbine of case and lower housing, lower housing is fixed with babinet to be connected
It connects, further includes cavity partition plate, the cavity partition plate is fixedly mounted on inside lower housing, and lower housing is divided into first and second chamber
Body, air through hole is provided in cavity partition plate lower end, and air inlet is provided between lower housing and cavity partition plate upper end.Cavity every
Plate increases significantly by flue gas flow channel, and sound transmission to the path in user's ear also increases significantly, this is conducive to sound in air
Attenuation, also can effective reducing noise.Air-flow through hole is arranged below cavity partition plate by the range hood, equal in being hidden
It puts inside smoke machine, effectively improves the appearance of range hood.
Further：The cavity partition plate is in concave shape；The cavity partition plate is circular arc shiny surface, and in cavity partition plate table
Face sprays nanometer oily dirt free material.By setting concave shape, the circulation length of flue gas can be added, is conducive to reduce flue gas
Circulation noise, and be conducive to hide smoke machine internal structure, the appearance of the school range hood；Air inlet face cavity partition plate
Circular arc hydraulically smooth surface, visual effect is preferable, soot gas from air inlet into the first cavity, air-flow by circular arc wall surface turn back to
Lower flowing, the air through hole turned back again on flowing and process cavity partition plate is hence into the second cavity, in the process, air-flow
It turns back to flow and generates centrifugal force, the greasy dirt particle in flue gas is thrown toward partition plate wall surface, and so as to condense adherency, and greasy dirt will not glue
On cavity partition plate.
Further：Drop in leaf is provided on the lower housing and at air inlet, the drop in leaf is hinged on
On lower housing, drop in leaf covers in air inlet.By setting drop in leaf, air inlet can be blocked, is conducive to improve oil suction
The appearance of smoke machine, and the purpose of flue gas can also be collected by drop in leaf.
Further：Sound-absorbing material is installed on first cavity and the second cavity inner surface.Sound-absorbing material layer
The noise inside smoke machine can be effectively absorbed, effectively reduces the formation of inner space reverberation.
Further：Sound-absorbing acoustic material is installed on the front panel inner wall of the lower housing.Sound-absorbing material layer can
To effectively absorb the noise for the various frequencies that smoke machine comes from air through hole toward outside outflow, insulation material layer can be to greatest extent
The ground resistance sound that insulates against sound is directly transferred to human ear through sound-absorbing, resistant panels, at the same also can farthest by noise lock inside housings
Space, so as to increase the using effect of sound-absorbing material.
Further：The sound-absorbing acoustic material being fixedly installed on the air through hole face lower housing front panel.Sound-absorbing material
Layer can effectively absorb the noise for the various frequencies that smoke machine comes from air through hole toward outside outflow, and insulation material layer can be maximum
Limit ground resistance sound insulation sound is directly transferred to human ear through sound-absorbing, resistant panels.
Further：The acoustic material is made of damping sound insulation material.Sound-absorbing acoustic material made of the material not only every
Audio fruit is good, and with good damping effect, weakens the reflex of sound, and is environment-friendly materials, pollution-free, Yi Jia
Work.
Further：Spray the coating or cover film of one layer of waterproof and oilproof in the sound-absorbing material surface.By sprayed coating or
Cover film can for a long time keep good sound-absorbing effect to avoid the pollution of greasy dirt.
Further：Institute's sound-absorbing material layer is made of the sound-absorbing material of melamine foam or polyurethane foam.The material it is common and
With sound absorption properties good, anti-flammability and thermal insulation, hydrothermal stability are good and environment friendly and pollution-free.
Advantageous effect
The beneficial effects of the utility model are：By setting cavity partition plate in range hood lower housing, flue gas is added
Flow channel length, is conducive to the attenuation of sound, while sound-absorbing material is set to absorb flue gas circulation noise, and the big portion absorbed significantly
It is high frequency noise to divide, and can be effectively improved sound quality, promotes user's use feeling.This is simple in structure, is effectively lowering cigarette
While gas noise, the aesthetic appearance of range hood can be improved.
Description of the drawings
Fig. 1 is lower housing cavity schematic diagram；
Fig. 2 is smoke machine lower housing gas passage schematic diagram；
Fig. 3 is that lower housing front panel faces effect diagram；
Fig. 4 is that acoustic material arrangement schematic diagram is inhaled inside smoke machine lower housing
The reference numeral of the utility model：1st, babinet, 2, wind turbine, 3, lower housing, 4, cavity partition plate, 5, drop in leaf, 31,
Front panel, 6, air inlet, 7, air through hole, the 8, first cavity, the 9, second cavity, 10, sound-absorbing acoustic material.
Specific embodiment
As a kind of embodiment of the utility model, as shown in attached drawing 1,2,3,4, including babinet 1, wind turbine 2, lower housing
3rd, cavity partition plate 4 and drop in leaf 5, the wind turbine 2 are installed on the box house 1, and babinet 1 and lower housing 3 are connected by screw
Fixation is connect, and babinet is communicated with lower housing；Cavity partition plate 4 is mounted on inside lower housing 3, and both ends are pasted with lower housing front panel 31
It closes.
As shown in attached drawing 1,2, the smoke machine is closed, drop in leaf and plate closing before lower housing, air inlet
It closes, cavity partition plate is in concave shape, is fixed on inside lower housing；Cavity partition plate both ends are bonded with lower housing front panel,
So as to form the first cavity 8 therebetween, partition plate and lower housing other parts form the second cavity 9, and cavity partition plate is by lower casing
Internal body portion is cut into two independent cavitys.It is opened in drop in leaf with lower housing front panel at an angle, this when lives
Dynamic turnover panel plays an important role of stop soot gas, is conducive to absorption of the range hood to soot gas.When drop in leaf open into
The circular arc hydraulically smooth surface of gas port face cavity partition plate, for soot gas from air inlet into the first cavity, air-flow passes through circular arc wall surface
It turns back and flows downward, then enter babinet along upwardly direction, excluded by wind turbine.
As shown in Figure 2, the smoke machine is in opening, and drop in leaf is opened and with lower housing front panel into certain angle
Degree, air inlet open.The air through hole 7 on air inlet 6 and partition plate, the path of smoke machine fume exhaust gas are represented in figure respectively
For：Soot gas from air inlet into the first cavity 8, by circular arc wall surface turn back and flow downward by air-flow, turns back flowing again simultaneously
By the air through hole 7 on cavity partition plate hence into the second cavity 9, air-flow enters babinet along upwardly direction afterwards, leads to
Wind turbine is crossed to discharge it.
Effect diagram is faced for lower housing front panel as shown in Figure 3, which eliminates drop in leaf, from
In figure understand, lower housing front panel internal face set sound-absorbing acoustic material, sound-absorbing material layer can effectively absorb smoke machine from into
Vent hole toward outside outflow come various frequencies noise, insulation material layer can obstruct to greatest extent sound through sound-absorbing every
Soundboard is directly transferred to human ear.The circular arc hydraulically smooth surface of air inlet face cavity partition plate, visual effect is preferable, soot gas from into
Gas port enters the first cavity 8, and air-flow turns back by circular arc wall surface and flows downward, and turns back again on flowing and process cavity partition plate
Air through hole is hence into the second cavity 9, and in the process, air-flow, which turns back to flow, generates centrifugal force, the greasy dirt particle in flue gas
Partition plate wall surface is thrown toward, so as to condense adherency, and cavity baffle surface sprays nanometer not viscous oil material, and greasy dirt is in the effect of gravity
Under, it flows downward, eventually flows in lubricating cup.7 show the air through hole on partition plate in figure, before the air through hole face lower housing
Panel is looked over from the front viewing angle of front panel, is invisible air through hole, can be hidden and be built in inside smoke machine,
Be conducive to the aesthetic appearance of range hood.
Schematic diagram is arranged to inhale acoustic material inside smoke machine lower housing, lower housing inner surface sets sound-absorbing as shown in Figure 4
Acoustic material, sound-absorbing material layer can effectively absorb the noise inside smoke machine, effectively reduce the formation of inner space reverberation, every
Sound material layer can obstruct sound and be directly transferred to human ear through housing to greatest extent, while also can be farthest by noise
Space inside housings is locked, so as to increase the using effect of sound-absorbing material.Portion sets sound-absorbing acoustic material 10 can in the cavity
Greatly to absorb the noise of various frequency bands, so as to reduce noise figure, and the presence of partition plate allows flue gas flow channel to increase significantly, sound
The path that sound is traveled in user's ear also increases significantly, this is conducive to the aerial attenuation of sound, also can effective reducing noise；
Lower housing cavity is divided into independent two parts simultaneously, so as to form two acoustics noise elimination cavities, sound wave is in two inside cavity energy
The reflection of more numbers is formed, this will also allow sound-absorbing material to play effect more times, can greatly enhance sound-absorbing effect.
Insulation material layer is made of damping sound insulation material, be directly bonded (or fix by other means, for example,；Screw is consolidated
It is fixed) it is fixed on housing metal plate, not only soundproof effect is good, and with good damping effect, the reflection for weakening sound is made
With, and for environment-friendly materials, pollution-free, easy processing.Sound-absorbing material layer is by the common sound-absorbing material such as melamine foam or polyurethane foam
It is made, sound-absorbing outer surface can be plane form or channel away or pyramidal structure, it is desirable that there is remarkable sound absorption
Property, anti-flammability, thermal insulation, hydrothermal stability, and it is environment friendly and pollution-free.Sound-absorbing material layer bonding is solid by other means
Determine, for example screw is fixed) it is fixed on insulation material layer.Due to the special use environment of smoke machine, after long-time service, sound-absorbing material
Surface has greasy dirt.The utility model passes through in one layer of the coating of one layer of waterproof and oilproof of sound-absorbing material surface spraying or covering
The film of waterproof and oilproof keeps good sound-absorbing effect so that it can avoid the pollution of greasy dirt for a long time.
The technical solution of the utility model and advantageous effect is described in detail in above-described specific embodiment,
It should be understood that the foregoing is merely the most preferred embodiments of the utility model, it is not intended to limit the utility model, it is all at this
Any modification, supplementary, and equivalent replacement done in the spirit of utility model etc., should be included in the guarantor of the utility model
Within the scope of shield.
Claims (9)
1. a kind of range hood, including babinet and positioned at the in vivo wind turbine of case and lower housing, lower housing is fixed with babinet to be connected
It connects, it is characterised in that：Cavity partition plate is further included, the cavity partition plate is fixedly mounted on inside lower housing, lower housing is divided into
First and second cavity, air through hole is provided in cavity partition plate lower end, is provided between lower housing and cavity partition plate upper end
Air inlet.
2. range hood according to claim 1, it is characterised in that：The cavity partition plate is in concave shape；The cavity
Partition plate is circular arc shiny surface, and sprays nanometer oily dirt free material in cavity baffle surface.
3. range hood according to claim 2, it is characterised in that：It is set on the lower housing and at air inlet
There is drop in leaf, the drop in leaf is hinged on lower housing, and drop in leaf covers in air inlet.
4. according to the range hood described in claim 1-3 any claims, it is characterised in that：In first cavity and
Sound-absorbing material is installed on two cavity inner surfaces.
5. range hood according to claim 4, it is characterised in that：The fixed peace on the front panel inner wall of the lower housing
Equipped with sound-absorbing acoustic material.
6. range hood according to claim 5, it is characterised in that：It is solid on the air through hole face lower housing front panel
Surely the sound-absorbing acoustic material set.
7. range hood according to claim 6, it is characterised in that：The acoustic material is made of damping sound insulation material
8. range hood according to claim 7, it is characterised in that：One layer of waterproof and oilproof of the sound-absorbing material surface spray
Coating or cover film.
9. range hood according to claim 8, it is characterised in that：The sound-absorbing material layer is by melamine foam or polyurethane
The sound-absorbing material of foam is made.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186267.XU CN207455671U (en) | 2017-09-15 | 2017-09-15 | A kind of range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721186267.XU CN207455671U (en) | 2017-09-15 | 2017-09-15 | A kind of range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207455671U true CN207455671U (en) | 2018-06-05 |
Family
ID=62283204
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721186267.XU Active CN207455671U (en) | 2017-09-15 | 2017-09-15 | A kind of range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207455671U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449007A (en) * | 2017-09-15 | 2017-12-08 | 华帝股份有限公司 | A kind of range hood |
-
2017
- 2017-09-15 CN CN201721186267.XU patent/CN207455671U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107449007A (en) * | 2017-09-15 | 2017-12-08 | 华帝股份有限公司 | A kind of range hood |
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