CN103335349B - A kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device - Google Patents
A kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device Download PDFInfo
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- CN103335349B CN103335349B CN201310276807.3A CN201310276807A CN103335349B CN 103335349 B CN103335349 B CN 103335349B CN 201310276807 A CN201310276807 A CN 201310276807A CN 103335349 B CN103335349 B CN 103335349B
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- oil
- noise reduction
- air inlet
- recess
- range hood
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Abstract
The present invention relates to a kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device, be applied on fume exhauster for kitchen.This noise reduction oil-filtering apparatus used for range hood, it is characterized in that, include an oil filtering plate for oil, described oil filtering plate for oil has through hole, the inlet end of described through hole is air inlet recess, the outlet side of described through hole is abrupt change of cross-section recess, is connected between air inlet recess and abrupt change of cross-section recess by a through hole, and the sectional area of described abrupt change of cross-section recess is greater than the sectional area of through hole.This product ensure that air-flow flowing out again after oil strain, and decreases noise to greatest extent by oil filtering plate for oil, the noise that blower fan produces can be isolated in fan housing inside as much as possible, and possess oil smoke self-purification function.
Description
Technical field
The present invention relates to a kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device, be applied on fume exhauster for kitchen.
Background technology
Range hood is also known as oil and smoke cleaner, smoke exhaust ventilator, lampblack absorber, range hood etc.People's Telecon Publishing House publishes " oil and smoke cleaner and electric fan are selected and keeped in repair " book that book number is ISBN 7-115-05355-3/TN761 for 1996, describe the method for maintaining of the structure of public lampblack absorber, principle, feature and most common failure, substantially represent structure, principle, the type of market being sold lampblack absorber, the document reporting similar lampblack absorber is a lot of.The structure of this type of lampblack absorber forms air exhauster by motor, fan and air guide hole etc., exhaust fume collecting hood is formed by casing, air exhauster work is controlled by control system, its principle utilizes driven by motor fan High Rotation Speed by direct discharged to outdoor indoor to oil smoke and other waste gas, maybe suction oil flue waste gas being discharged to outdoor again through filtering, also directly can being emitted on indoor.The object of disposal of pollutants is reduced for reaching purifying air in kitchen, this type of lampblack absorber arranges guard or oil suction net or oil-Absorbing Sheets at air entry to carry out simply once filtering to oil flue waste gas, part lampblack absorber also fills the material filter courses such as active carbon at exhaust outlet, secondary filter is carried out to oil flue waste gas, the family of the excessive or long-time use to oil smoke, can not thoroughly purify.Meanwhile, the noise produced during lampblack absorber work, causes high risks all to user and environment.
Prior art discloses a kind of oil-filtering screen of range hood (application number: the air inlet 200910042997.6) being arranged on range hood, the interior web plate of the outer web plate comprising the air inlet having arrangement and the gas outlet having arrangement, described air inlet has air inlet oil strain baffle plate, air admission hole, give vent to anger oil strain baffle plate in described gas outlet, venthole, described outer web plate and interior web plate attach together the air channel being formed and arrange, the air inlet of single group and gas outlet are on the same axis, structure of turning back is there is between the air admission hole of above-mentioned filtering screen and venthole, airflow certainly will be caused not smooth, oil stain easily deposits at place of turning back, result in blockage, and not easily clean out.
Summary of the invention
The object of the invention is to overcome the problems referred to above existing in prior art, and the noise reduction oil-filtering apparatus used for range hood that a kind of structure is simple, can realize oil strain, noise reduction, rectification, self-cleaning integrated function is provided.
The present invention solves the problems of the technologies described above adopted technical scheme: this noise reduction oil-filtering apparatus used for range hood, it is characterized in that, include an oil filtering plate for oil, described oil filtering plate for oil has through hole, the inlet end of described through hole is air inlet recess, the outlet side of described through hole is abrupt change of cross-section recess, is connected between air inlet recess and abrupt change of cross-section recess by a through hole, and the sectional area of described abrupt change of cross-section recess is greater than the sectional area of through hole.Abrupt change of cross-section recess on this product, can produce noise to range hood fan and cause acoustic impedance to suddenly change, thus realize the function of noise reduction, air inlet recess can play the function of air inlet and oil strain.
As preferably, described abrupt change of cross-section recess is a cuboid recess.
As preferably, described abrupt change of cross-section recess is a square recess, the noise that lampblack absorber inner blower produces is from top to down through noise reduction oil cleaner screen, through abrupt change of cross-section recess, acoustic resistance sudden change in passage, make the sound wave along some frequency of pipe transmmision not be reflected back sound source by mutation structure to go, thus reach the object of noise elimination.
As preferably, described air inlet recess is an arc air inlet recess.
As preferably, described air inlet recess is a circular arc air inlet recess, oil stain can be made to take advantage of a situation under gravity and flow down, add the charge flow rate of air inlet simultaneously.
As preferably, surrounding's cross-under of the through hole of described oil filtering plate for oil has resistive heater, can heat noise reduction oil-filtering apparatus used for range hood, liquefies to make the oil smoke of adhesion.
As preferably, the heating-up temperature of described resistive heater is more than 80 DEG C, and for making the oil smoke liquefaction adhered to, heating-up temperature is at least more than 80 DEG C.
As preferably, also include oil cleaner screen, the air inlet face of oil filtering plate for oil is covered with oil cleaner screen, described oil cleaner screen and oil filtering plate for oil are integral type structure, oil cleaner screen can realize the function of oil strain, can prevent oil smoke from entering range hood inside, and then the problem such as noise increase, efficiency reduction that can prevent draught fan impeller from causing because oil smoke adheres to.
A kind of lampblack absorber bellows, adopt the noise reduction oil-filtering apparatus used for range hood in above-mentioned preferred version, it is characterized in that, also include fan housing and oil trap, the air inlet of described fan housing is provided with noise reduction oil-filtering apparatus used for range hood, the bottom of air inlet is provided with oil trap, and oil trap is for collecting oil stain, effectively can prevent the obstruction of noise reduction oil cleaner screen by this method, possess oil smoke self-purification function.
As preferably, the air inlet of described fan housing is an angle, and described noise reduction oil-filtering apparatus used for range hood is mounted obliquely within air inlet, under gravity, can collect oil stain better, and described fan housing adopts sound insulation material system.
The invention has the beneficial effects as follows: ensure that air-flow flowing out again after oil strain, and decrease noise to greatest extent by oil filtering plate for oil, the noise that blower fan produces can be isolated in fan housing inside as much as possible, and possess oil smoke self-purification function.
Accompanying drawing explanation
Fig. 1 is the front view of the embodiment of the present invention one.
Fig. 2 is the partial cross section figure of oil filtering plate for oil A-A in Fig. 1.
Fig. 3 is structural representation after the amplification of another angle of through hole in Fig. 2.
Fig. 4 is the rearview of the embodiment of the present invention one.
Fig. 5 is the structural representation enlarged drawing in I portion in Fig. 4.
Fig. 6 is the operating diagram of the embodiment of the present invention one.
Fig. 7 is the structural representation of the embodiment of the present invention two.
Label declaration: oil filtering plate for oil 1, through hole 2, air inlet recess 3, the abrupt change of cross-section are recessed 4, resistive heater 5, oil cleaner screen 6, fan housing 7, oil trap 8.
Detailed description of the invention
Below in conjunction with drawings and Examples, the invention will be further described.
Embodiment one: see Fig. 1-Fig. 6, this product includes oil filtering plate for oil 1 and oil cleaner screen 6, the air inlet face 11 of oil filtering plate for oil 1 is covered with oil cleaner screen 6, oil cleaner screen 6 and oil filtering plate for oil 1 are integral type structure, oil cleaner screen 6 and oil filtering plate for oil 1 can realize the function of oil strain, can prevent oil smoke from entering range hood inside, and then the problem such as noise increase, efficiency reduction that can prevent draught fan impeller from causing because oil smoke adheres to.
Oil filtering plate for oil 1 in the present embodiment has through hole 2, the inlet end of through hole 2 is air inlet recess 3, the outlet side of through hole 2 is recessed 4 mouthfuls of the abrupt change of cross-section, and be connected by a through hole 2 between air inlet recess 3 and recessed 4 mouthfuls of the abrupt change of cross-section, the sectional area that the abrupt change of cross-section is recessed 4 mouthfuls is greater than the sectional area of through hole 2.
Recessed 4 mouthfuls of the abrupt change of cross-section in the present embodiment is a cuboid recess, recessed 4 mouthfuls of the abrupt change of cross-section under preferable case is a square recess, as shown in Figure 6, the noise b that lampblack absorber inner blower produces is from top to down through noise reduction oil-filtering apparatus 9, when through recessed 4 mouthfuls of the abrupt change of cross-section, in passage, acoustic resistance sudden change, makes the sound wave along some frequency of pipe transmmision not be reflected back sound source by mutation structure and goes, thus reach the object of noise elimination.
Air inlet recess 3 in the present embodiment is an arc air inlet recess, and the air inlet recess 3 under preferable case is a circular arc air inlet recess, oil stain can be made to take advantage of a situation under gravity and flow down, add the charge flow rate of air inlet simultaneously.
Surrounding's cross-under of the through hole 2 of the oil filtering plate for oil 1 in the present embodiment has resistive heater 5, can heat noise reduction oil-filtering apparatus 9 used for range hood, and to make the oil smoke of adhesion liquefy, for making the oil smoke adhered to fully liquefy, heating-up temperature is at least more than 80 DEG C.
Embodiment two: see Fig. 7, the present embodiment relates to a kind of lampblack absorber bellows, adopt the noise reduction oil-filtering apparatus 9 used for range hood in above-described embodiment one, include fan housing 7 and oil trap 8 in addition, the air inlet 71 of fan housing 7 is provided with noise reduction oil-filtering apparatus 9 used for range hood, the bottom of air inlet 71 is provided with oil trap 8, in order to collect oil stain better, the air inlet of fan housing 7 is an angle, noise reduction oil-filtering apparatus 9 used for range hood is mounted obliquely within air inlet, in addition, in order to strengthen the soundproof effect of this product further, fan housing 7 adopts sound insulation material system of the prior art.
Real work flow process is, as shown in Figure 6, under the suction of cooking-fume exhauster blower, with the air a oil network 6 after filtration from below to up of oil smoke, after the resistance wire 5 on oil filtering plate for oil 1 is heats liquefied, the air after oil strain, rectification enters fan housing 7, and then outside discharge chamber; The noise b that the casing inner blower of fan housing 7 produces oiled-plate method 1 after filtration from top to down, in the structure through the abrupt change of cross-section, in passage, acoustic resistance sudden change, makes the sound wave along some frequency of pipe transmmision not be reflected back sound source by mutation structure and goes, thus reach the object of noise elimination.
Above content described in this description is only to structure example of the present invention explanation.Those skilled in the art can make various amendment or supplement or adopt similar mode to substitute to described specific embodiment; only otherwise depart from structure of the present invention or surmount this scope as defined in the claims, protection scope of the present invention all should be belonged to.
Claims (10)
1. a noise reduction oil-filtering apparatus used for range hood, it is characterized in that: include an oil filtering plate for oil, described oil filtering plate for oil has through hole, the inlet end of described through hole is air inlet recess, the outlet side of described through hole is abrupt change of cross-section recess, be connected by a through hole between air inlet recess and abrupt change of cross-section recess, the sectional area of described abrupt change of cross-section recess is greater than the sectional area of through hole, and the noise that described abrupt change of cross-section recess can produce cooking-fume exhauster blower causes acoustic impedance to suddenly change thus realizes the function of noise reduction.
2. noise reduction oil-filtering apparatus used for range hood according to claim 1, is characterized in that: described abrupt change of cross-section recess is a cuboid recess.
3. noise reduction oil-filtering apparatus used for range hood according to claim 2, is characterized in that: described abrupt change of cross-section recess is a square recess.
4. noise reduction oil-filtering apparatus used for range hood according to claim 1, is characterized in that: described air inlet recess is an arc air inlet recess.
5. noise reduction oil-filtering apparatus used for range hood according to claim 4, is characterized in that: described air inlet recess is a circular arc air inlet recess.
6. noise reduction oil-filtering apparatus used for range hood according to claim 1, is characterized in that: surrounding's cross-under of the through hole of described oil filtering plate for oil has resistive heater.
7. noise reduction oil-filtering apparatus used for range hood according to claim 6, is characterized in that: the heating-up temperature of described resistive heater is more than 80 DEG C.
8. noise reduction oil-filtering apparatus used for range hood according to claim 1, is characterized in that: also include oil cleaner screen, the air inlet face of oil filtering plate for oil is covered with oil cleaner screen, and described oil cleaner screen and oil filtering plate for oil are integral type structure.
9. lampblack absorber bellows, adopt the noise reduction oil-filtering apparatus used for range hood described in claim 1-8 any one, it is characterized in that: also include fan housing and oil trap, the air inlet of described fan housing is provided with noise reduction oil-filtering apparatus used for range hood, the bottom of air inlet is provided with oil trap.
10. a kind of lampblack absorber bellows according to claim 9, is characterized in that: the air inlet of described fan housing is an angle, and described noise reduction oil-filtering apparatus used for range hood is mounted obliquely within air inlet, and described fan housing adopts sound insulation material system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276807.3A CN103335349B (en) | 2013-07-03 | 2013-07-03 | A kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310276807.3A CN103335349B (en) | 2013-07-03 | 2013-07-03 | A kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103335349A CN103335349A (en) | 2013-10-02 |
| CN103335349B true CN103335349B (en) | 2015-08-26 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310276807.3A Active CN103335349B (en) | 2013-07-03 | 2013-07-03 | A kind of noise reduction oil-filtering apparatus used for range hood and the lampblack absorber bellows with this device |
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| CN (1) | CN103335349B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105795741A (en) * | 2016-04-29 | 2016-07-27 | 青岛有屋家居集成有限公司 | Low-noise integrated kitchen cupboard |
| CN107940531A (en) * | 2017-12-30 | 2018-04-20 | 王淼弘 | A kind of mute kitchen hood |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201059658Y (en) * | 2007-06-04 | 2008-05-14 | 姚国祥 | Hood |
| CN201313022Y (en) * | 2008-07-31 | 2009-09-23 | 马利华 | Lampblack filter plate or filter mantle with muffler |
| CN201318728Y (en) * | 2008-11-25 | 2009-09-30 | 浙江苏泊尔家电制造有限公司 | Extractor hood |
| CN103002723A (en) * | 2011-09-08 | 2013-03-27 | 青钢金属建材股份有限公司 | Electromagnetic wave filter resistance plate structure |
| GB2495904A (en) * | 2011-09-13 | 2013-05-01 | Sirius Products Ltd | Separator |
| CN202973285U (en) * | 2012-11-08 | 2013-06-05 | 陆建益 | Heat supply net type automatic cleaning range hood |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060157048A1 (en) * | 2004-12-17 | 2006-07-20 | Heilman Nikolaus J | Grease extraction system, particulate extractor, and method |
-
2013
- 2013-07-03 CN CN201310276807.3A patent/CN103335349B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201059658Y (en) * | 2007-06-04 | 2008-05-14 | 姚国祥 | Hood |
| CN201313022Y (en) * | 2008-07-31 | 2009-09-23 | 马利华 | Lampblack filter plate or filter mantle with muffler |
| CN201318728Y (en) * | 2008-11-25 | 2009-09-30 | 浙江苏泊尔家电制造有限公司 | Extractor hood |
| CN103002723A (en) * | 2011-09-08 | 2013-03-27 | 青钢金属建材股份有限公司 | Electromagnetic wave filter resistance plate structure |
| GB2495904A (en) * | 2011-09-13 | 2013-05-01 | Sirius Products Ltd | Separator |
| CN202973285U (en) * | 2012-11-08 | 2013-06-05 | 陆建益 | Heat supply net type automatic cleaning range hood |
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| CN103335349A (en) | 2013-10-02 |
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Address after: Block south of Xiaoshan economic and Technological Development Zone Xiaoshan Hongxing Road District of Hangzhou City, Zhejiang province 311231 No. 98 Patentee after: Hangzhou Deyi electrical Limited by Share Ltd Address before: 311215 Xiaoshan Economic Development Zone, Zhejiang District, Hangzhou Road No. three, No. 36 Patentee before: DE&E Appliances Co., Ltd. |
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Address after: 311231 No. 98, Hongxing Road, Qiaonan block, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee after: Hangzhou Deyi Zhijia Co.,Ltd. Address before: 311231 No. 98, Hongxing Road, Qiaonan block, Xiaoshan Economic and Technological Development Zone, Xiaoshan District, Hangzhou City, Zhejiang Province Patentee before: HANGZHOU DE&E ELECTRICAL Co.,Ltd. |