CN103335349A - Silencing oil filter device for extractor hood and extractor hood bellows with the device - Google Patents
Silencing oil filter device for extractor hood and extractor hood bellows with the device Download PDFInfo
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- CN103335349A CN103335349A CN2013102768073A CN201310276807A CN103335349A CN 103335349 A CN103335349 A CN 103335349A CN 2013102768073 A CN2013102768073 A CN 2013102768073A CN 201310276807 A CN201310276807 A CN 201310276807A CN 103335349 A CN103335349 A CN 103335349A
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- air inlet
- recess
- noise reduction
- range hood
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Abstract
The invention relates to a silencing oil filter device for extractor hood and an extractor hood bellows with the device, and the device can be applied to extractor hood in kitchen. The silencing oil filter device for extractor hood is characterized by comprising a filter plate provided with through holes; an air inlet end of each through hole is an air inlet notch; and outlet end of each through hole is a notch with abrupt change in cross-section; each inlet notch and each notch with abrupt change in cross-section communicate with each other through a through hole; and the section surface of the notch with abrupt change in cross-section section is larger than that of the through hole. The product ensures the outflow of the airflow after passing through the oil filter, and minimizes the noise through the oil filter plate; the noise generated by the fan is isolated in the hood as much as possible; and the device has self fume purification function.
Description
Technical field
The present invention relates to a kind of used for range hood noise reduction oil-filtering apparatus and have the lampblack absorber bellows of this device, be applied on the fume exhauster for kitchen.
Background technology
Range hood claims oil and smoke cleaner, smoke exhaust ventilator, lampblack absorber, range hood etc. again.It is " oil and smoke cleaner and electric fan are selected for use and keeped in repair " book of ISBN 7-115-05355-3/TN761 that the People's Telecon Publishing House published book number in 1996, introduced the method for maintaining of structure, principle, characteristics and the most common failure of public lampblack absorber, substantially represented structure, principle, the type of selling lampblack absorber on the market, the document of reporting similar lampblack absorber is a lot of.The structure of this type of lampblack absorber is to constitute air exhauster by motor, fan and air guide hole etc., form exhaust fume collecting hood by casing, by the work of control system control air exhauster, its principle is to utilize the driven by motor fan to rotate at a high speed oil smoke and other waste gas from indoor directly discharged to outdoor, maybe will suck oil flue waste gas and be discharged to outdoorly again through filtering, also can directly be emitted on indoor.Purify the purpose that air in kitchen reduces disposal of pollutants for reaching, this type of lampblack absorber arranges guard or oil suction net or oil-Absorbing Sheets at air entry oil flue waste gas is simply once filtered, the part lampblack absorber is also filled material filter courses such as active carbon at exhaust outlet, oil flue waste gas is carried out secondary filter, the family of or long-time use excessive to oil smoke can not thoroughly purify.Simultaneously, the noise that produces during lampblack absorber work causes very big harm all for user and environment.
Prior art discloses a kind of oil-filtering screen of range hood (application number: 200910042997.6) be installed in the air inlet of range hood, the outer web plate and the interior web plate that has the gas outlet of arrangement that comprise the air inlet that has arrangement, described air inlet has air inlet oil strain baffle plate, air admission hole, the described gas outlet oil strain baffle plate of giving vent to anger, venthole, described outer web plate and interior web plate attach together and form the air channel of arranging, the air inlet of single group and gas outlet are on same axis, there is the structure of turning back between the air admission hole of above-mentioned filtering screen and venthole, certainly will cause airflow not smooth, oil stain deposits easily at the place of turning back, result in blockage, and be difficult for cleaning out.
Summary of the invention
The objective of the invention is to overcome existing the problems referred to above in the prior art, and a kind of simple in structure, the used for range hood noise reduction oil-filtering apparatus that can realize oil strain, noise reduction, rectification, the integrated function of self-cleaning is provided.
The present invention solves the problems of the technologies described above the technical scheme that adopts: this used for range hood noise reduction oil-filtering apparatus, it is characterized in that, include an oil strain plate, have through hole on the described oil strain plate, the inlet end of described through hole is the air inlet recess, the outlet side of described through hole is abrupt change of cross-section recess, links by a through hole between air inlet recess and abrupt change of cross-section recess, 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 the lampblack absorber blower fan and cause the acoustic impedance sudden change, thereby realize the function of noise reduction, and the 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 the lampblack absorber inner blower produces passes through the noise reduction oil cleaner screen from top to down, through the abrupt change of cross-section recess time, acoustic resistance sudden change in the passage, make along the sound wave of some frequency of pipe transmmision and can not the reflected back sound source go by mutation structure, thereby reach the purpose 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, can make oil stain take advantage of a situation under the effect of gravity and flow down, and has increased the charge flow rate of air inlet simultaneously.
As preferably, cross-under has resistive heater around the through hole of described oil strain plate, can heat used for range hood noise reduction oil-filtering apparatus, so that the oil smoke that adheres to liquefaction.
As preferably, the heating-up temperature of described resistive heater is to make the oil smoke liquefaction that adheres to more than 80 ℃, and heating-up temperature is at least more than 80 ℃.
As preferably, also include oil cleaner screen, be covered with oil cleaner screen on the air inlet face of oil strain plate, described oil cleaner screen and oil strain plate are integral structure, oil cleaner screen can be realized the function of oil strain, can prevent that oil smoke from entering range hood inside, and then can prevent problems such as noise increase that draught fan impeller causes because oil smoke adheres to, efficient reduction.
A kind of lampblack absorber bellows, adopt the used for range hood noise reduction oil-filtering apparatus in the above-mentioned preferred version, it is characterized in that, also include fan housing and oil trap, used for range hood noise reduction oil-filtering apparatus is installed on the air inlet of described fan housing, and the bottom of air inlet is equipped with oil trap, and oil trap is used for collecting oil stain, effectively can prevent the obstruction of noise reduction oil cleaner screen by this method, possess the oil smoke self-purification function.
As preferably, the air inlet of described fan housing is an angle, and described used for range hood noise reduction oil-filtering apparatus is mounted obliquely within on the air inlet, under the effect of gravity, can collect oil stain better, and described fan housing adopts sound insulation material system.
The invention has the beneficial effects as follows: guaranteed air-flow through the outflow again behind the oil strain, and reduced noise to greatest extent by the oil strain plate, the noise that blower fan produces can be isolated in fan housing inside as much as possible, and possess the oil smoke self-purification function.
Description of drawings
Fig. 1 is the front view of the embodiment of the invention one.
Fig. 2 is the partial cross section figure of oil strain plate A-A among Fig. 1.
Fig. 3 is structural representation after the amplification of another angle of through hole among Fig. 2.
Fig. 4 is the rearview of the embodiment of the invention one.
Fig. 5 is the structural representation enlarged drawing of I portion among Fig. 4.
Fig. 6 is the work schematic diagram of the embodiment of the invention one.
Fig. 7 is the structural representation of the embodiment of the invention two.
Label declaration: oil strain plate 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.
The specific embodiment
The invention will be further described below in conjunction with drawings and Examples.
Embodiment one: referring to Fig. 1-Fig. 6, this product includes oil strain plate 1 and oil cleaner screen 6, be covered with oil cleaner screen 6 on the air inlet face 11 of oil strain plate 1, oil cleaner screen 6 and oil strain plate 1 are integral structure, oil cleaner screen 6 and oil strain plate 1 can be realized the function of oil strain, can prevent that oil smoke from entering range hood inside, and then can prevent problems such as noise increase that draught fan impeller causes because oil smoke adheres to, efficient reduction.
Have through hole 2 on the oil strain plate 1 in the present embodiment, 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, links by a through hole 2 between recessed 4 mouthfuls of air inlet recess 3 and the abrupt change of cross-section, and the recessed 4 mouthfuls sectional area of the abrupt change of cross-section is greater than the sectional area of through hole 2.
The abrupt change of cross-section in the present embodiment is a cuboid recess for recessed 4 mouthfuls, the abrupt change of cross-section under the preferable case is a square recess for recessed 4 mouthfuls, as shown in Figure 6, the noise b that the lampblack absorber inner blower produces passes through noise reduction oil-filtering apparatus 9 from top to down, through recessed 4 mouthfuls of the abrupt change of cross-section time, acoustic resistance sudden change in the passage makes along the sound wave of some frequency of pipe transmmision and can not the reflected back sound source go by mutation structure, thereby reaches the purpose of noise elimination.
Air inlet recess 3 in the present embodiment is an arc air inlet recess, and the air inlet recess 3 under the preferable case is a circular arc air inlet recess, can make oil stain take advantage of a situation under the effect of gravity and flow down, and has increased the charge flow rate of air inlet simultaneously.
Cross-under has resistive heater 5 around the through hole 2 of the oil strain plate 1 in the present embodiment, can heat used for range hood noise reduction oil-filtering apparatus 9, so that the oil smoke that adheres to liquefaction, for making the oil smoke that adheres to fully liquefy, heating-up temperature is at least more than 80 ℃.
Embodiment two: referring to Fig. 7, present embodiment relates to a kind of lampblack absorber bellows, adopt the used for range hood noise reduction oil-filtering apparatus 9 in above-described embodiment one, include fan housing 7 and oil trap 8 in addition, used for range hood noise reduction oil-filtering apparatus 9 is installed on the air inlet 71 of fan housing 7, the bottom of air inlet 71 is equipped with oil trap 8, in order to collect oil stain better, the air inlet of fan housing 7 is an angle, used for range hood noise reduction oil-filtering apparatus 9 is mounted obliquely within on the air inlet, in addition, in order further to strengthen the soundproof effect of this product, fan housing 7 adopts sound insulation material system of the prior art.
The real work flow process is, as shown in Figure 6, and under the suction of cooking-fume exhauster blower, the air a that has oil smoke passes through oil cleaner screen 6 from descending, after the resistance wire 5 heating liquefaction on the oil strain plate 1, enter fan housing 7 through the air after oil strain, the rectification, and then discharge outdoor; The noise b that the casing inner blower of fan housing 7 produces is oiled-plate method 1 after filtration from top to down, when the structure of the process abrupt change of cross-section, acoustic resistance sudden change in the passage makes along the sound wave of some frequency of pipe transmmision and can not the reflected back sound source go by mutation structure, thereby reaches the purpose of noise elimination.
Above content described in this specification only is to structure example of the present invention explanation.Those skilled in the art can make various modifications or replenish or adopt similar mode to substitute described specific embodiment; only otherwise depart from structure of the present invention or surmount the defined scope of these claims, all should belong to protection scope of the present invention.
Claims (10)
1. used for range hood noise reduction oil-filtering apparatus, it is characterized in that: include an oil strain plate, have through hole on the described oil strain plate, the inlet end of described through hole is the air inlet recess, the outlet side of described through hole is abrupt change of cross-section recess, link 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.
2. used for range hood noise reduction oil-filtering apparatus according to claim 1, it is characterized in that: described abrupt change of cross-section recess is a cuboid recess.
3. used for range hood noise reduction oil-filtering apparatus according to claim 2, it is characterized in that: described abrupt change of cross-section recess is a square recess.
4. used for range hood noise reduction oil-filtering apparatus according to claim 1, it is characterized in that: described air inlet recess is an arc air inlet recess.
5. used for range hood noise reduction oil-filtering apparatus according to claim 4, it is characterized in that: described air inlet recess is a circular arc air inlet recess.
6. used for range hood noise reduction oil-filtering apparatus according to claim 1 is characterized in that: cross-under has resistive heater around the through hole of described oil strain plate.
7. used for range hood noise reduction oil-filtering apparatus according to claim 6, it is characterized in that: the heating-up temperature of described resistive heater is more than 80 ℃.
8. used for range hood noise reduction oil-filtering apparatus according to claim 1, it is characterized in that: also include oil cleaner screen, be covered with oil cleaner screen on the air inlet face of oil strain plate, described oil cleaner screen and oil strain plate are integral structure.
9. lampblack absorber bellows, adopt any described used for range hood noise reduction oil-filtering apparatus of claim 1-8, it is characterized in that: also include fan housing and oil trap, used for range hood noise reduction oil-filtering apparatus is installed on the air inlet of described fan housing, the bottom of air inlet is equipped with oil trap.
10. a kind of lampblack absorber bellows according to claim 9, it is characterized in that: the air inlet of described fan housing is an angle, and described used for range hood noise reduction oil-filtering apparatus is mounted obliquely within on the 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 true CN103335349A (en) | 2013-10-02 |
| CN103335349B 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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Cited By (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 (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20060157048A1 (en) * | 2004-12-17 | 2006-07-20 | Heilman Nikolaus J | Grease extraction system, particulate extractor, and method |
| 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 |
-
2013
- 2013-07-03 CN CN201310276807.3A patent/CN103335349B/en active Active
Patent Citations (7)
| 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 |
| 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 |
Cited By (3)
| 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 |
| CN107940531B (en) * | 2017-12-30 | 2024-05-07 | 王淼弘 | Mute range hood |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103335349B (en) | 2015-08-26 |
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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. |