CN106989424A - A kind of cigarette machine and its noise-reduction method with centrifugal blower - Google Patents
A kind of cigarette machine and its noise-reduction method with centrifugal blower Download PDFInfo
- Publication number
- CN106989424A CN106989424A CN201710323641.4A CN201710323641A CN106989424A CN 106989424 A CN106989424 A CN 106989424A CN 201710323641 A CN201710323641 A CN 201710323641A CN 106989424 A CN106989424 A CN 106989424A
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- CN
- China
- Prior art keywords
- spiral case
- cabinet
- centrifugal blower
- cigarette machine
- air inlet
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C15/00—Details
- F24C15/20—Removing cooking fumes
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- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Ventilation (AREA)
Abstract
The present invention, which is disclosed, is provided with spiral case in a kind of cigarette machine with centrifugal blower, including cabinet and exhaust fume collecting hood, cabinet, impeller and motor are provided with spiral case, spiral case is provided with advance air port and rear air inlet, and the forward and backward plate of cabinet distinguishes the forward and backward air inlet just to spiral case, it is characterised in that：Be respectively provided with silencing means on the forward and backward plate of cabinet, the silencing means includes acoustical panel and built-in silencing cotton, moreover, the area of acoustical panel be more than its just to spiral case air-admitting surface.The present invention on the air channel wall construction of front and rear air inlet by taking sound-absorbing measure, and, the surface area of acoustical panel is greater than spiral case air inlet more than spiral case air inlet, i.e. its sound-absorbing coverage after acoustical panel, bellows before bellows so that its muting function has more preferable performance.
Description
Technical field
The present invention relates to family's electro-technical field, more particularly to a kind of cigarette machine and its noise-reduction method with centrifugal blower.
Background technology
In existing centrifugal blower, the air intake of spiral case relies primarily on the air inlet for being opened in side, is sucked into casing
Air-flow needs through several bendings and then could entered in spiral case, therefore conventional centrifugal blower fan has turbulence noise.
Chinese invention（Number of patent application CN201320779106.7）Disclose a kind of silence exhauster for removing cooking fumes, including casing
With the exhaust fume collecting hood with air inlet, casing is interior to be provided with spiral case, and spiral case has advance air port and rear air inlet, the front cover of casing
Sound-absorbing kuppe just is provided with to the position in the advance air port of spiral case on plate, forms closed between sound-absorbing kuppe and front cover plate
Cavity, offer multiple micropores connected with closed cavity on the rear board relative with advance air port of sound-absorbing kuppe,
Acoustical cotton is filled with closed cavity.But, the spiral case back of the range hood still suffers from loud noise, it is necessary to make into one
Step is improved and perfect.In order to overcome drawbacks described above, we have developed, and one kind is follow-on, can keep noise reduction steadily in the long term
Solution.
The content of the invention
Present invention aims at provide a kind of cigarette machine with centrifugal blower for taking sound-absorbing measure before and after spiral case and its
Noise-reduction method, so that overall improve cigarette machine muting function, to overcome the deficiencies in the prior art.
The invention solves the problems that the technical scheme that is used of its technical problem for：A kind of cigarette machine with centrifugal blower, including machine
It is provided with case and exhaust fume collecting hood, cabinet in spiral case, spiral case and is provided with impeller and motor, spiral case is provided with advance air port and rear air inlet,
The forward and backward air inlet of the forward and backward plate of cabinet respectively just to spiral case, it is characterised in that：Noise reduction dress is respectively provided with the forward and backward plate of cabinet
Put, the silencing means include acoustical panel and built-in silencing cotton, moreover, the area of acoustical panel be more than its just to spiral case air inlet
Area.
The spiral case lower end is provided with oil drain pan, and the oil drain pan is that silencing cotton pressing plate is provided with above polymorphic structure, oil drain pan,
Silencing cotton is set between oil drain pan and silencing cotton pressing plate.
The front and rear profiled side area of the oil drain pan is directly proportional to the wind chamber size of inlet side before and after exhaust fume collecting hood.
Snail tongue cover plate is set on the outside of the coaming plate tongue of the spiral case, and spiral case coaming plate tongue is provided with multiple bloops, by snail tongue
Cover plate surrounds snail tongue silencing cavity with coaming plate tongue.
Snail tongue silencing cotton built in the snail tongue silencing cavity.
The noise-reduction method of the above-mentioned cigarette machine with centrifugal blower, passes through the oil drain pan in cabinet, the advancing air of cabinet inner spiral casing
Mouth in rear air inlet, snail tongue silencing cavity with setting silencing cotton, so as to eliminate the turbulence noise for the air-flow for entering cabinet from exhaust fume collecting hood.
The beneficial effects of the invention are as follows：
The cigarette machine with centrifugal blower of the present invention, takes sound-absorbing measure, moreover, bellows on the air channel wall construction of front and rear air inlet
The surface area of acoustical panel is greater than spiral case air inlet more than spiral case air inlet, i.e. its sound-absorbing coverage after preceding acoustical panel, bellows,
So that its muting function has more preferable performance.
The cigarette machine oil drain pan structure of the present invention is abnormally-structured, and its profiled-cross-section and the wind chamber size of front and rear inlet side are close
Association, meanwhile, acoustical cotton is also equipped with oil drain pan, therefore, the noise reduction mute structure at the position is mutually fitted with its wind chamber size
Match somebody with somebody.The present invention has also carried out noise-reduction processing at the snail tongue position of spiral case coaming plate, minimizes the noise level of complete machine
Level.
Brief description of the drawings
Fig. 1 is noise reduction range hood structure schematic diagram of the present invention.
Fig. 2 is the spiral case polycrystalline substance schematic diagram of noise reduction smoke exhaust ventilator of the present invention.
Fig. 3 is the spiral case top structure schematic diagram of noise reduction smoke exhaust ventilator of the present invention.
Fig. 4 splits schematic diagram for the snail tongue constitutional detail of the centrifugal turbine blower fan of the present invention.
Embodiment
Embodiments of the invention are described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning to end
Same or similar label represents same or similar element or the element with same or like function.Below with reference to attached
The embodiment of figure description is exemplary, is only used for explaining the present invention, and is not considered as limiting the invention.
Referring to Fig. 1-4, the present invention is provided to be provided with a kind of cigarette machine with centrifugal blower, including cabinet 1 and exhaust fume collecting hood, cabinet
Impeller 3 and motor 4 are provided with spiral case 2, spiral case, spiral case is provided with advance air port 5 and rear air inlet 8, and the forward and backward plate of cabinet is distinguished
Just to the forward and backward air inlet of spiral case, silencing means is respectively provided with the forward and backward plate of cabinet, the silencing means includes acoustical panel（6,
9）With built-in silencing cotton（7,10）, moreover, the area of acoustical panel be more than its just to spiral case air-admitting surface.By in spiral case
Forward and backward air intake scope sets silencing means, so as to absorb the turbulence noise that centrifugal blower is produced from forward and backward two sides, makes cigarette machine
Noise is obviously improved.
Spiral case is located at the partially middle position of cabinet, and cabinet lower end is provided with import, and spiral case upper end is provided with air outlet, air outlet and machine
The outlet of case is communicated, and the bottom lower end of spiral case is provided with oil drain pan, and described oil drain pan 11 is polymorphic structure, and inside is provided with silencing cotton
Pressing plate, is provided with silencing cotton, snail is set on the outside of the tongue of spiral case coaming plate 13 of the spiral case air outlet of cigarette machine between pressing plate and oil drain pan
Tongue lid plate 12, coaming plate tongue is provided with multiple bloops, and snail tongue silencing cavity is surrounded by snail tongue cover plate 12 and coaming plate tongue.Snail tongue noise reduction
Intracavitary puts snail tongue silencing cotton 15.
Snail tongue silencing cotton 15 is generally trapezoidal structure, and it is engaged with the cavity shape of snail tongue chamber, so as to be made an uproar from basic
Noise is preferably minimized at source of sound.Spiral case air inlet is provided with acoustical panel with respect to cabinet inwall, and acoustical panel is inclined to be arranged on snail
The right of shell, and also be provided with simultaneously in acoustical panel, the acoustical panel on both sides using silencing cotton on the left side.Formed between bellows cover plate
Closed cavity, is filled with silencing cotton, and the acoustical panel of bellows in the closed cavity and offers multiple be evenly distributed and institute
State the micropore of closed cavity connection.Acoustical panel forms the air port of acute angle between spiral case air inlet side and acoustical panel, so that
The air-flow entered in cabinet is quickly introduced into spiral case, and noise is reduced by acoustical panel, improve whole on the whole
The decrease of noise functions of lampblack absorber.
Cigarette machine oil drain pan structure is abnormally-structured, the wind chamber size close association of its profiled-cross-section and front and rear inlet side, together
When, acoustical cotton is also equipped with oil drain pan, and therefore, the noise reduction mute structure at the position is adapted with its wind chamber size.
Disappeared by being set in the oil drain pan of cabinet, the advance air port of cabinet inner spiral casing and rear air inlet, snail tongue silencing cavity
Sound cotton, so as to eliminate the turbulence noise for the air-flow for entering cabinet from exhaust fume collecting hood.
Although an embodiment of the present invention has been shown and described, it will be understood by those within the art that：Not
In the case of departing from the principle and objective of the present invention a variety of change, modification, replacement and modification can be carried out to these embodiments, this
The scope of invention is limited by claim and its equivalent substitution, without creative work improvements introduced etc., all should be included
Within protection scope of the present invention.
Claims (6)
- Be provided with 1. a kind of cigarette machine with centrifugal blower, including cabinet and exhaust fume collecting hood, in cabinet in spiral case, spiral case provided with impeller and Motor, spiral case is provided with advance air port and rear air inlet, and the forward and backward plate of cabinet distinguishes the forward and backward air inlet just to spiral case, its It is characterised by：Silencing means is respectively provided with the forward and backward plate of cabinet, the silencing means includes acoustical panel and built-in silencing cotton, and And, the area of acoustical panel be more than its just to spiral case air-admitting surface.
- 2. the cigarette machine according to claim 1 with centrifugal blower, it is characterised in that：The spiral case lower end is provided with oil drain pan, The oil drain pan is that silencing cotton pressing plate is provided with above polymorphic structure, oil drain pan, sets and disappears between oil drain pan and silencing cotton pressing plate Sound cotton.
- 3. the cigarette machine according to claim 2 with centrifugal blower, it is characterised in that：The front and rear profiled side of the oil drain pan Area is directly proportional to the wind chamber size of inlet side before and after exhaust fume collecting hood.
- 4. according to any described cigarette machine with centrifugal blower of claims 1 to 3, it is characterised in that：The coaming plate tongue of the spiral case Snail tongue cover plate is set on the outside of portion, and spiral case coaming plate tongue is provided with multiple bloops, surrounds snail tongue with coaming plate tongue by snail tongue cover plate and disappear Sound chamber.
- 5. the cigarette machine according to claim 4 with centrifugal blower, it is characterised in that：Snail tongue built in the snail tongue silencing cavity disappears Sound cotton.
- 6. the noise-reduction method of the cigarette machine with centrifugal blower according to claim 5, it is characterised in that：By connecing oil in cabinet Silencing cotton is set in disk, the advance air port of cabinet inner spiral casing and rear air inlet, snail tongue silencing cavity, entered so as to eliminate from exhaust fume collecting hood The turbulence noise of the air-flow of cabinet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323641.4A CN106989424A (en) | 2017-05-10 | 2017-05-10 | A kind of cigarette machine and its noise-reduction method with centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710323641.4A CN106989424A (en) | 2017-05-10 | 2017-05-10 | A kind of cigarette machine and its noise-reduction method with centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106989424A true CN106989424A (en) | 2017-07-28 |
Family
ID=59418059
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710323641.4A Withdrawn CN106989424A (en) | 2017-05-10 | 2017-05-10 | A kind of cigarette machine and its noise-reduction method with centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106989424A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108443930A (en) * | 2018-05-16 | 2018-08-24 | 珠海格力电器股份有限公司 | A kind of kitchen ventilator |
| CN109519998A (en) * | 2018-12-25 | 2019-03-26 | 杭州德意电器股份有限公司 | A kind of installation method of range hood with denoising device and denoising device |
| CN110081480A (en) * | 2018-01-25 | 2019-08-02 | 宁波方太厨具有限公司 | A kind of range hood |
| CN114109924A (en) * | 2020-08-28 | 2022-03-01 | 宁波方太厨具有限公司 | Impeller, fan system applying same and range hood |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2216706A1 (en) * | 2003-04-07 | 2004-10-16 | Cata Electrodomesticos, S.L. | Silencer for fume extracting hoods |
| EP2492598A1 (en) * | 2011-02-28 | 2012-08-29 | BSH Bosch und Siemens Hausgeräte GmbH | Casing and range hood comprising the casing |
| CN202452550U (en) * | 2011-12-19 | 2012-09-26 | 海尔集团公司 | Range hood |
| CN203628765U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Mute type range hood |
| CN105716135A (en) * | 2016-04-14 | 2016-06-29 | 广东美的厨房电器制造有限公司 | Extractor hood |
| CN106016406A (en) * | 2016-07-14 | 2016-10-12 | 广东美的厨房电器制造有限公司 | Volute assembly and exhaust hood |
| CN106439959A (en) * | 2016-08-31 | 2017-02-22 | 杭州老板电器股份有限公司 | Low noise and large suction range hood |
| CN206073182U (en) * | 2016-08-28 | 2017-04-05 | 杭州老板电器股份有限公司 | The water conservancy diversion sound-absorbing solid noise reduction system of lampblack absorber |
-
2017
- 2017-05-10 CN CN201710323641.4A patent/CN106989424A/en not_active Withdrawn
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| ES2216706A1 (en) * | 2003-04-07 | 2004-10-16 | Cata Electrodomesticos, S.L. | Silencer for fume extracting hoods |
| EP2492598A1 (en) * | 2011-02-28 | 2012-08-29 | BSH Bosch und Siemens Hausgeräte GmbH | Casing and range hood comprising the casing |
| CN202452550U (en) * | 2011-12-19 | 2012-09-26 | 海尔集团公司 | Range hood |
| CN203628765U (en) * | 2013-11-30 | 2014-06-04 | 宁波方太厨具有限公司 | Mute type range hood |
| CN105716135A (en) * | 2016-04-14 | 2016-06-29 | 广东美的厨房电器制造有限公司 | Extractor hood |
| CN106016406A (en) * | 2016-07-14 | 2016-10-12 | 广东美的厨房电器制造有限公司 | Volute assembly and exhaust hood |
| CN206073182U (en) * | 2016-08-28 | 2017-04-05 | 杭州老板电器股份有限公司 | The water conservancy diversion sound-absorbing solid noise reduction system of lampblack absorber |
| CN106439959A (en) * | 2016-08-31 | 2017-02-22 | 杭州老板电器股份有限公司 | Low noise and large suction range hood |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110081480A (en) * | 2018-01-25 | 2019-08-02 | 宁波方太厨具有限公司 | A kind of range hood |
| CN110081480B (en) * | 2018-01-25 | 2024-02-20 | 宁波方太厨具有限公司 | Fume exhauster |
| CN108443930A (en) * | 2018-05-16 | 2018-08-24 | 珠海格力电器股份有限公司 | A kind of kitchen ventilator |
| CN109519998A (en) * | 2018-12-25 | 2019-03-26 | 杭州德意电器股份有限公司 | A kind of installation method of range hood with denoising device and denoising device |
| CN114109924A (en) * | 2020-08-28 | 2022-03-01 | 宁波方太厨具有限公司 | Impeller, fan system applying same and range hood |
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| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
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| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170728 |
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| WW01 | Invention patent application withdrawn after publication |