CN204329117U - A kind of silence exhauster for removing cooking fumes - Google Patents
A kind of silence exhauster for removing cooking fumes Download PDFInfo
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- CN204329117U CN204329117U CN201420803147.XU CN201420803147U CN204329117U CN 204329117 U CN204329117 U CN 204329117U CN 201420803147 U CN201420803147 U CN 201420803147U CN 204329117 U CN204329117 U CN 204329117U
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- air duct
- shell body
- silencing means
- duct
- dividing plate
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Abstract
The utility model discloses a kind of silence exhauster for removing cooking fumes, comprise range hood main body, exhaust duct, described exhaust duct one end is provided with inlet scoop, the other end is provided with exhaust outlet, silencing means is provided with in range hood main body, silencing means comprises shell body, air duct, shell body and air duct are the cavity of both ends open, described air duct is arranged at shell body inside, air duct is fusiform cavity, the lower end of air duct and the lower end of shell body form the air inlet of silencing means jointly, the upper end of air duct and the upper end of shell body form the air outlet of silencing means jointly, air inlet is connected with blower fan, blower fan is connected with motor, air outlet is connected with inlet scoop, the barrel of air duct is evenly distributed with aperture.The utility model reaches inside convenient for cleaning, effectively reduces noise and the effect being convenient to install.
Description
Technical field
The utility model relates to household kitchen electric appliance field, is specifically related to a kind of silence exhauster for removing cooking fumes.
Background technology
Range hood is a kind of kitchen appliance purifying kitchen environment, and range hood is arranged on the top of kitchen range, the harmful oil smoke produced can be taken away rapidly, thus reach the effect purified air in the refuse of cooking stove burning and cooking process.But owing to producing cyclone, in addition the impeller high-speed rotation of fan and the running of motor when air-flow enters range hood, range hood in use can produce larger noise.
Thus market there is the multiple range hood that silencing means is housed, still there is following problem in noise reduction range hood of the prior art: one is that range hood of the prior art mainly utilizes Sound-proof material to carry out noise reduction, intercept absorption wind by Sound-proof material to make an uproar, use noise is reduced with this, but this kind of range hood is through Long-Time Service, repeatedly carry out oil smoke suction, Sound-proof material can accumulate a large amount of greasy dirts.Range hood needs cleaned at regular intervals, and the material of Sound-proof material is difficult to cleaning after making accumulation greasy dirt, and repeatedly can reduce soundproof effect after cleaning, and it is not high that it recycles rate, needs often to change, and user used very inconvenient; Two is also additional abacuses in prior art, orifice plate is prefabricated into straight tube, device noise is reduced by aperture noise reduction mode, but the greasy dirt that Long-Time Service Sound-proof material is accumulated also can block aperture, noise reduction is deteriorated, alone aperture noise reduction does not reach again good noise reduction, and the orifice plate noise reduction of straight barrel type is also undesirable.
Utility model content
In order to solve the defect that above-mentioned prior art exists, the utility model is achieved through the following technical solutions:
The utility model comprises range hood main body, exhaust duct, described exhaust duct one end is provided with inlet scoop, the other end is provided with exhaust outlet, silencing means is provided with in described range hood main body, described silencing means comprises shell body, air duct, described shell body is the cavity of both ends open, described air duct is arranged at shell body inside, described air duct is fusiform cavity, the equal opening in the upper and lower two ends of air duct, the lower end of described air duct and the lower end of shell body form the air inlet of silencing means jointly, the upper end of described air duct and the upper end of shell body form the air outlet of silencing means jointly, described air inlet is connected with blower fan, described blower fan is connected with motor, described air outlet is connected with inlet scoop, the barrel of described air duct is evenly distributed with aperture.
Described air duct cross section is circular further, laterally dividing plate is provided with between air duct outer wall and shell body inwall, described diaphragm rings was around air duct one week, described air duct is connected by dividing plate with shell body, the inner ring of dividing plate is connected with air duct outer wall, the outer ring of dividing plate is connected with shell body, and the space interval between air duct from shell body is different chambers by described dividing plate.
Further described dividing plate is the hollow round table shape of upper and lower opening, and air duct outer wall is fixed in dividing plate upper end, and shell body inwall is fixed in dividing plate lower end, and the inner ring of dividing plate is higher than the outer ring of dividing plate, and separator face is obliquely installed.
Be provided with the first dividing plate, second partition between described air duct outer wall and shell body inwall particularly, the space between air duct and shell body is divided into the first soundproof room, the second soundproof room, the 3rd soundproof room by the first dividing plate, second partition from top to down successively.
The air inlet of described silencing means and the cross section of air outlet are circular further, and the diameter of described air outlet is greater than the diameter of air inlet.
Be provided with four fixing feet after described range hood main body further, described fixing feet be respectively equipped with noise reduction circle.
Cigarette machine check-valves is provided with further between the air outlet of described silencing means and the inlet scoop of exhaust duct.The exhaust outlet place of described exhaust duct is provided with flute check valve further.
Described silencing means is made up of stainless steel material further.
The utility model compared with prior art, has following beneficial effect:
Range hood body interior is provided with silencing means, when eliminating fan induced draught in range hood, wind rotates the noise produced, the air duct part of silencing means is fusiform cavity, the lower end of air duct is made to show as the trend of expansion, the air duct wall expanded thus makes noise produce reflection in the process propagated, interfere, thus reduce air duct to extraradial acoustic energy, air duct wall is evenly distributed with aperture, gas is spread by aperture, the intensity of radiated noise weakens further, the use of silencing cotton is decreased in the structure of above silencing means, facilitate the clean of lampblack absorber and install, the soundproof effect preventing a large amount of greasy dirt to accumulate to cause reduces.
Dividing plate is provided with between the outer wall of air duct and the inwall of shell body, space interval between air duct and shell body is become chamber by described dividing plate, the wind entered enters chamber after small holes diffusion, and under the reflection of dividing plate and the effect of chamber, the noise that blower fan produces weakens further.
Dividing plate is obliquely installed reflect noise better, optimizes noise reduction.
The air outlet diameter of silencing means is greater than the diameter of air inlet, eliminates the secondary noise that air outlet place produces.
Fixing feet in range hood main body is provided with noise reduction circle, and noise reduction circle eliminates the noise that range hood vibration produces further.
The setting of cigarette machine check-valves and flute check valve, prevents flue gas to flow backwards when extracting out.
Accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Fig. 2 is the schematic cross-section of the utility model silencing means.
Fig. 3 is the utility model shell body and air duct connection diagram.
Fig. 4 is the utility model side schematic view.
1-range hood main body, 2-exhaust duct, 3-silencing means, 4-shell body, 5-air duct, 6-blower fan, 7-first dividing plate, 8-second partition, 9-first soundproof room, 10-second soundproof room, 11-the 3rd soundproof room.
Detailed description of the invention
Below by way of specific embodiment, the utility model is described further.
Embodiment
The present embodiment comprises range hood main body 1 as shown in Figure 1, exhaust duct 2, described exhaust duct 2 one end is provided with inlet scoop, the other end is provided with exhaust outlet, silencing means 3 is provided with in described range hood main body, silencing means 3 comprises shell body 4, air duct 5, described shell body 4 and air duct 5 are the cavity of both ends open, it is inner that described air duct 5 is arranged at shell body 4, preferably air duct 5 is fusiform cavity, the lower end of described air duct 5 and the lower end of shell body 4 form the air inlet of silencing means 3 jointly, the upper end of described air duct 5 and the upper end of shell body 4 form the air outlet of silencing means 3 jointly, described air inlet is connected with blower fan 6, blower fan 6 is connected with motor, blower fan 6 is centrifugal fan, blower fan 6 is installed on machine shaft, by the running of driven by motor blower fan 6, described air outlet is connected with inlet scoop.Be provided with cigarette machine check-valves between the air outlet of described silencing means 3 and the inlet scoop of exhaust duct 2, the bottom of cigarette machine check-valves is screwed the top with lampblack absorber, and the top of cigarette machine check-valves is connected with the inlet scoop of exhaust duct.The exhaust outlet place of described exhaust duct 2 is provided with flute check valve, and preferred described air duct 5 cross section is circular, and the base of flute check valve is fixed on wall, and the top of flute check valve is connected with the exhaust outlet of exhaust duct.
Be illustrated in figure 2 the sectional view of silencing means 3, air duct 5 wall is evenly distributed with aperture, the upper end open place of shell body 4 is fixed in the upper end of air duct 5, the lower ending opening place of shell body 5 is fixed in the lower end of air duct 5, and air duct 5 is that intermediate expansions is protruding, the spindle cavity that two inside contracts, air duct 5 wall is prefabricated with aperture, aperture has been covered with whole air duct 5 wall, and the upper end of whole silencing means 3 is connected with exhaust duct 2, and the lower end of silencing means 3 is connected with blower fan 6.Shell body 4 and air duct 5 are the cavity of both ends open.
Air duct 5 is connected by dividing plate with shell body 4 as shown in Figure 3, preferably be provided with the first dividing plate 7 between described air duct 5 outer wall and shell body 4 inwall, second partition 8, air duct 5 outer wall is fixed in dividing plate upper end, shell body 4 inwall is fixed in dividing plate lower end, first dividing plate 7 is all arranged around air duct 5 wall with second partition 8 for one week, dividing plate is the hollow round table shape of upper and lower opening, first dividing plate 7, space between air duct 5 and shell body 4 is divided into the first soundproof room 9 by second partition 8 from top to down successively, second soundproof room 10, 3rd soundproof room 11, the diameter of air outlet is greater than the diameter of air inlet, namely described air duct air outlet place inside contract that radian is less than air duct air inlet inside contract radian, preferably the cross section of air outlet and air inlet is circle.
Range hood main body 1 is provided with four fixing feet below as shown in Figure 4, and range hood is fixed on metope by fixing feet, described fixing feet is respectively equipped with noise reduction circle.
In the present embodiment above-mentioned silencing means preferably 304 stainless steel materials make, the cylindrical shell of air duct is long, shell body is long is 50cm, and between air inlet and air outlet, spacing is 60cm, and air inlet diameter is 16cm, air outlet diameter is 20cm, and the spacing of described shell body two is 25cm.
In actual mechanical process, centrifugal blower siphons away oil smoke, the related oil smoke of wind of suction enters muffler, now produce noise due to the rotation of wind, first noise is through the expansion position of air inlet, noise reflects through the barrel of expansion, interference is weakened, uniform aperture on air duct wall afterwards, gas is spread by aperture, noise weakens further thus, and noise enters the first chamber, the second chamber, the 3rd chamber, weakens step by step thus, finally only have small part noise from muffler out, reach good noise reduction.
Claims (9)
1. a silence exhauster for removing cooking fumes, comprise range hood main body (1), exhaust duct (2), described exhaust duct (2) one end is provided with inlet scoop, the other end is provided with exhaust outlet, it is characterized in that, silencing means (3) is provided with in described range hood main body (1), silencing means (3) comprises shell body (4), air duct (5), described shell body (4) and air duct (5) are the cavity of both ends open, it is inner that described air duct (5) is arranged at shell body (4), air duct (5) is fusiform cavity, the lower end of described air duct (5) and the lower end of shell body (4) form the air inlet of silencing means (3) jointly, the upper end of described air duct (5) and the upper end of shell body form the air outlet of silencing means (3) jointly, described air inlet is connected with blower fan (6), (6) are connected with motor with described blower fan, described air outlet is connected with inlet scoop, the barrel of described air duct (5) is evenly distributed with aperture.
2. a kind of silence exhauster for removing cooking fumes according to claim 1, it is characterized in that, the cross section of described air duct (5) is circular, laterally dividing plate is provided with between air duct (5) outer wall and shell body (4) inwall, described diaphragm rings was around air duct (5) cylindrical shell one week, and described air duct (5) is connected by dividing plate with shell body (4).
3. a kind of silence exhauster for removing cooking fumes according to claim 2, it is characterized in that, described dividing plate is the hollow round table shape of upper and lower opening, and the outer wall of air duct (5) is fixed in dividing plate upper end, and the inwall of shell body (4) is fixed in dividing plate lower end.
4. a kind of silence exhauster for removing cooking fumes according to claim 3, it is characterized in that, be provided with the first dividing plate (7), second partition (8) between described air duct (5) outer wall and shell body (4) inwall, the space between air duct (5) and shell body (4) is divided into the first soundproof room (9), the second soundproof room (10), the 3rd soundproof room (11) by the first dividing plate (7), second partition (8) from top to down successively.
5. a kind of silence exhauster for removing cooking fumes according to claim 1, is characterized in that, the air inlet of described silencing means (3) and the cross section of air outlet are circular, and the diameter of described air outlet is greater than the diameter of air inlet.
6. a kind of silence exhauster for removing cooking fumes according to claim 1, it is characterized in that, described range hood main body (1) is provided with four fixing feet, described fixing feet is respectively equipped with noise reduction circle.
7. a kind of silence exhauster for removing cooking fumes according to claim 1, is characterized in that, be provided with cigarette machine check-valves between the air outlet of described silencing means (3) and the inlet scoop of exhaust duct (2).
8. a kind of silence exhauster for removing cooking fumes according to claim 1, it is characterized in that, the exhaust outlet place of described exhaust duct (2) is provided with flute check valve.
9. a kind of silence exhauster for removing cooking fumes according to claim 1, it is characterized in that, described silencing means (3) is made up of stainless steel material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803147.XU CN204329117U (en) | 2014-12-18 | 2014-12-18 | A kind of silence exhauster for removing cooking fumes |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420803147.XU CN204329117U (en) | 2014-12-18 | 2014-12-18 | A kind of silence exhauster for removing cooking fumes |
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| Publication Number | Publication Date |
|---|---|
| CN204329117U true CN204329117U (en) | 2015-05-13 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420803147.XU Expired - Fee Related CN204329117U (en) | 2014-12-18 | 2014-12-18 | A kind of silence exhauster for removing cooking fumes |
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| CN (1) | CN204329117U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424753A (en) * | 2017-09-18 | 2017-12-01 | 江苏神运电气有限公司 | A kind of special transformer air-cooler silencing means |
-
2014
- 2014-12-18 CN CN201420803147.XU patent/CN204329117U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107424753A (en) * | 2017-09-18 | 2017-12-01 | 江苏神运电气有限公司 | A kind of special transformer air-cooler silencing means |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150513 Termination date: 20151218 |
|
| EXPY | Termination of patent right or utility model |