CN206755301U - A kind of noise reduction range hood - Google Patents
A kind of noise reduction range hood Download PDFInfo
- Publication number
- CN206755301U CN206755301U CN201720510671.1U CN201720510671U CN206755301U CN 206755301 U CN206755301 U CN 206755301U CN 201720510671 U CN201720510671 U CN 201720510671U CN 206755301 U CN206755301 U CN 206755301U
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- CN
- China
- Prior art keywords
- spiral case
- noise reduction
- cabinet
- range hood
- air inlet
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Abstract
The utility model discloses a kind of noise reduction range hood, including cabinet and exhaust fume collecting hood, and spiral case is provided with cabinet, impeller and motor are provided with spiral case, spiral case is provided with advance air port and rear air inlet, the forward and backward air inlet of the forward and backward plate difference face spiral case of cabinet, it is characterised in that：Silencing means is respectively provided with the forward and backward plate of cabinet, the silencing means includes acoustical panel and built-in silencing cotton, moreover, the area of acoustical panel is more than the spiral case air-admitting surface of its face.Noise reduction range hood of the present utility model, sound-absorbing measure is taken on the air channel wall construction of front and rear air inlet, moreover, the surface area of acoustical panel is more than spiral case air inlet after acoustical panel, bellows before bellows, i.e. its sound-absorbing coverage is greater than spiral case air inlet so that its muting function has more preferable performance.
Description
Technical field
It the utility model is related to an electro-technical field, more particularly to a kind of noise reduction range hood.
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 utility model（Number of patent application CN201320779106.7）A kind of silence exhauster for removing cooking fumes is disclosed, including
Casing and 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 casing of casing
The position in the advance air port of face spiral case is provided with sound-absorbing kuppe on front shroud, is formed between sound-absorbing kuppe and front cover plate
Closed cavity, offer on the rear board relative with advance air port of sound-absorbing kuppe it is multiple connected with closed cavity it is micro-
Hole, closed cavity is interior to be filled with acoustical cotton.But the spiral case back of the range hood still suffers from loud noise, it is necessary to makees
Further improve 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
The solution of effect.
The content of the invention
The utility model purpose is to provide a kind of noise reduction range hood for taking sound-absorbing measure before and after spiral case, so as to
It is overall to improve cigarette machine muting function, with overcome the deficiencies in the prior art.
Technical scheme is used by the utility model will solve its technical problem：A kind of noise reduction range hood, including machine
Case and exhaust fume collecting hood, cabinet is interior to be provided with spiral case, and impeller and motor are provided with spiral case, and spiral case is provided with advance air port and rear air inlet,
The forward and backward air inlet of the forward and backward plate difference face spiral case of cabinet, it is characterised in that：Noise reduction dress is respectively provided with the forward and backward plate of cabinet
Put, the silencing means includes acoustical panel and built-in silencing cotton, moreover, the area of acoustical panel is more than the spiral case air inlet of its face
Area.
The spiral case lower end is provided with oil drain pan, and the oil drain pan is polymorphic structure, and silencing cotton pressing plate is provided with above 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 beneficial effects of the utility model are：
Noise reduction range hood of the present utility model, sound-absorbing measure is taken on the air channel wall construction of front and rear air inlet, moreover,
The surface area of acoustical panel is more than spiral case air inlet after acoustical panel, bellows before bellows, i.e. its sound-absorbing coverage is greater than spiral case and entered
Air port so that its muting function has more preferable performance.
Cigarette machine oil drain pan structure of the present utility model is abnormally-structured, its profiled-cross-section and the wind chamber size of front and rear inlet side
Close association, meanwhile, acoustical cotton is also equipped with oil drain pan, therefore, the noise reduction mute structure at the position is and its wind chamber size
It is adapted.The utility model has also carried out noise-reduction processing at the snail tongue position of spiral case coaming plate, makes the noise level of complete machine
Minimize level.
Brief description of the drawings
Fig. 1 is the utility model noise reduction range hood structure schematic diagram.
Fig. 2 is the spiral case polycrystalline substance schematic diagram of the utility model noise reduction smoke exhaust ventilator.
Fig. 3 is the spiral case top structure schematic diagram of the utility model noise reduction smoke exhaust ventilator.
Fig. 4 is that the snail tongue constitutional detail of centrifugal turbine blower fan of the present utility model splits schematic diagram.
Embodiment
Embodiment of the present utility model is described below in detail, the example of the embodiment is shown in the drawings, wherein from beginning
Same or similar element is represented to same or similar label eventually or there is the element of same or like function.Below by ginseng
The embodiment for examining accompanying drawing description is exemplary, is only used for explaining the utility model, and it is not intended that to of the present utility model
Limitation.
Referring to Fig. 1-4, the utility model provides a kind of noise reduction range hood, including cabinet 1 and exhaust fume collecting hood, is provided with cabinet
Spiral case 2, spiral case is interior to be provided with impeller 3 and motor 4, and spiral case is provided with advance air port 5 and rear air inlet 8, the forward and backward plate difference of cabinet
The forward and backward air inlet of face spiral case, is respectively provided with silencing means on the forward and backward plate of cabinet, and the silencing means includes acoustical panel（6,
9）With built-in silencing cotton（7,10）, moreover, the area of acoustical panel is more than the spiral case air-admitting surface of its face.By in spiral case
Forward and backward air intake scope sets silencing means, so as to from turbulence noise caused by forward and backward two sides absorption centrifugal blower, make 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 communicates, 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, silencing cotton is provided between pressing plate and oil drain pan, snail is set on the outside of the tongue of spiral case coaming plate 13 of the spiral case air outlet of cigarette machine
Tongue lid plate 12, coaming plate tongue are 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 acoustical panel also is provided with simultaneously on the left side, use silencing cotton in the acoustical panel on both sides.Formed between bellows cover plate
Closed cavity, silencing cotton is filled with the closed cavity, and multiple be evenly distributed and institute is offered on the acoustical panel of bellows
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 as to
The air-flow for enabling to enter in cabinet is quickly introduced into spiral case, and reduces noise by acoustical panel, is improved on the whole 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.
While there has been shown and described that embodiment of the present utility model, it will be understood by those within the art that：
These embodiments can be carried out with a variety of changes, modification in the case where not departing from principle and objective of the present utility model, replaced
And modification, the scope of the utility model are limited by claim and its equivalent substitution, change what is made without creative work
Enter, should be included within the scope of protection of the utility model.
Claims (5)
1. a kind of noise reduction range hood, including cabinet and exhaust fume collecting hood, cabinet is interior to be provided with spiral case, and impeller and motor are provided with spiral case,
Spiral case is provided with advance air port and rear air inlet, the forward and backward air inlet of the forward and backward plate difference face spiral case of cabinet, and its feature exists
In：Silencing means is respectively provided with the forward and backward plate of cabinet, the silencing means includes acoustical panel and built-in silencing cotton, moreover, noise reduction
The area of plate is more than the spiral case air-admitting surface of its face.
2. noise reduction range hood according to claim 1, it is characterised in that：The spiral case lower end is provided with oil drain pan, connects oil
Silencing cotton pressing plate is provided with above disk, silencing cotton is set between oil drain pan and silencing cotton pressing plate.
3. noise reduction range hood according to claim 2, it is characterised in that：The front and back sides area of the oil drain pan and collection
The wind chamber size of inlet side is directly proportional before and after petticoat pipe.
4. the noise reduction range hood according to claims 1 to 3 any one, 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. noise reduction range hood according to claim 4, it is characterised in that：Snail tongue noise reduction built in the snail tongue silencing cavity
Cotton.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510671.1U CN206755301U (en) | 2017-05-10 | 2017-05-10 | A kind of noise reduction range hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720510671.1U CN206755301U (en) | 2017-05-10 | 2017-05-10 | A kind of noise reduction range hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206755301U true CN206755301U (en) | 2017-12-15 |
Family
ID=60617502
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720510671.1U Expired - Fee Related CN206755301U (en) | 2017-05-10 | 2017-05-10 | A kind of noise reduction range hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206755301U (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975853A (en) * | 2018-01-11 | 2018-05-01 | 山东小鸭集团小家电有限公司 | A kind of low noise self-cleaning type range hood |
| CN108758748A (en) * | 2018-08-01 | 2018-11-06 | 浙江帅康电气股份有限公司 | A kind of low-noise exhauster for removing cooking fumes and noise-reduction method |
| 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 |
| CN110094774A (en) * | 2018-01-31 | 2019-08-06 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood |
| CN110274277A (en) * | 2018-03-13 | 2019-09-24 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood and its method for noise reduction control |
| CN110822505A (en) * | 2018-08-10 | 2020-02-21 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust ventilator |
| CN111750393A (en) * | 2019-03-29 | 2020-10-09 | 青岛海尔智能技术研发有限公司 | Fume exhauster |
-
2017
- 2017-05-10 CN CN201720510671.1U patent/CN206755301U/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107975853A (en) * | 2018-01-11 | 2018-05-01 | 山东小鸭集团小家电有限公司 | A kind of low noise self-cleaning type range hood |
| CN110094774A (en) * | 2018-01-31 | 2019-08-06 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood |
| CN110094774B (en) * | 2018-01-31 | 2024-02-20 | 宁波方太厨具有限公司 | Noise-reducing type range hood |
| CN110274277A (en) * | 2018-03-13 | 2019-09-24 | 宁波方太厨具有限公司 | A kind of noise reducing type range hood and its method for noise reduction control |
| CN110274277B (en) * | 2018-03-13 | 2024-01-23 | 宁波方太厨具有限公司 | Noise-reduction type range hood and noise-reduction control method thereof |
| CN108758748A (en) * | 2018-08-01 | 2018-11-06 | 浙江帅康电气股份有限公司 | A kind of low-noise exhauster for removing cooking fumes and noise-reduction method |
| CN108758748B (en) * | 2018-08-01 | 2024-04-12 | 浙江帅康电气股份有限公司 | Low-noise range hood and noise reduction method |
| CN110822505A (en) * | 2018-08-10 | 2020-02-21 | 佛山市顺德区美的洗涤电器制造有限公司 | Smoke exhaust 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 |
| CN111750393A (en) * | 2019-03-29 | 2020-10-09 | 青岛海尔智能技术研发有限公司 | Fume exhauster |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20171215 Termination date: 20180510 |