CN200993431Y - Kitchen hood - Google Patents
Kitchen hood Download PDFInfo
- Publication number
- CN200993431Y CN200993431Y CN 200620165243 CN200620165243U CN200993431Y CN 200993431 Y CN200993431 Y CN 200993431Y CN 200620165243 CN200620165243 CN 200620165243 CN 200620165243 U CN200620165243 U CN 200620165243U CN 200993431 Y CN200993431 Y CN 200993431Y
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- CN
- China
- Prior art keywords
- sound
- smoke exhaust
- volute
- absorbing spare
- exhaust ventilator
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- 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.)
- Expired - Fee Related
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Abstract
The utility model provides an oil fume extractor, which comprises a motorized fan and a scroll for mounting the fan. The scroll has an airflow channel and an airflow inlet and an airflow outlet communicated with the airflow channel. The utility model is characterized in that, the scroll is provided with an acoustic part, which is communicated with the airflow channel, so that the airflow sucked by the extractor will directly contact with the acoustic part in the airflow channel, so as to effectively reduce the noise generated by the airflow.
Description
[technical field]
The utility model relates to a kind of smoke exhaust ventilator, especially relates to a kind of smoke exhaust ventilator that is used in family kitchen or the restaurant.
[background technology]
For distributing and rest on indoor, known and habitual way, the flue gas that prevents to produce in the cooking process smoke exhaust ventilator especially is set in the kitchen above cooking equipment this kind flue gas is taken away most possibly and discharged outdoor.
The blower fan system of smoke exhaust ventilator generally includes blower fan and installation blower fan and is provided with the volute of gas channel.Described blower fan is driven by electricity usually, comprises motor and passes through the impeller that axle is connected with motor.The generation of the noise of smoke exhaust ventilator mainly comprises two aspects, and first aspect is the sound that the noise of blower fan system itself produces as vibration, and second aspect is noise generated by air flow.
Chinese patent ZL has disclosed a kind of noise-reduction method that utilizes microwell plate to absorb noise for No. 200320107926.8, and it is by being provided with micropore and being connected the purpose that a noise reduction case that is provided with microwell plate reaches the reduction noise on volute in plate part, whirlpool.Open the unfavorable manufacturing of micropore at whirlpool plate and noise reduction case, and can increase the volume and weight of blower fan system, cause the vibration of blower fan system itself.
[utility model content]
Technical problem to be solved in the utility model is to provide a kind of smoke exhaust ventilator that reduces noise.
For this reason, a kind of smoke exhaust ventilator of the utility model, this smoke exhaust ventilator comprises electrically driven (operated) blower fan and in order to the volute of this blower fan to be installed, this volute comprises gas channel and the air flow inlet and the air stream outlet that are communicated with this gas channel, it is characterized in that: described volute is provided with sound-absorbing spare, and described sound-absorbing spare and described gas channel communicate.Thereby the air-flow that is sucked by smoke exhaust ventilator directly contacts with sound-absorbing spare in gas channel, and this can effectively reduce noise generated by air flow.Further, absorb noise, can not increase the weight and volume of blower fan system, can not increase the vibration of blower fan system itself by sound-absorbing spare.
As preferential embodiment of the present utility model, described volute is provided with opening, and described sound-absorbing spare seals this opening, thereby sound-absorbing spare and gas channel communicate.This setup is simple in structure but can effectively reduce noise generated by air flow.
Preferably, described volute comprises the antetheca that is provided with described air flow inlet, the rear wall relative with this antetheca and the sidewall that connects described antetheca and rear wall, and described opening is arranged on this antetheca and/or rear wall and/or the sidewall.When opening was arranged on antetheca and/or sidewall, air-flow can twice contacts with sound-absorbing spare, promptly entered before the gas channel with after entering gas channel all to contact with sound-absorbing spare, can strengthen sound-absorbing effect.When if opening is arranged on rear wall, air-flow is because have inertia to posterior wall motion, thereby fully contacts with sound-absorbing spare, obtains sound-absorbing effect preferably.
As the particularly preferred embodiment of the utility model, described rear wall has in order to the installing port of blower fan to be installed, and blower fan comprises the part of passing this installing port, forms described opening between the edge of installing port and this part, and this opening is sealed by sound-absorbing spare.This mode can simple in structurely just can reach the purpose that sound-absorbing spare and gas channel communicate.
Though can adopt other modes, for example sound-absorbing spare is fixed on the volute by screw, as the particularly preferred embodiment of the utility model, described sound-absorbing spare sticks on this volute.
One preferred embodiment in, described sound-absorbing spare comprises the inner surface towards described gas channel, described inner surface is uneven.This can increase the contact area of air-flow and sound-absorbing spare, further reduces noise.Preferably, described sound-absorbing spare is sponge or foam or foamed plastics with the part that gas channel communicates at least.
Preferred embodiment a kind of as the utility model, described volute tilts to be installed in the bellows of smoke exhaust ventilator, and the antetheca of volute forms guide face.This can improve flowing of air-flow, thereby reduces noise.
Preferred embodiment a kind of as the utility model, also comprise the second sound-absorbing spare, this second sound-absorbing spare is pasted at least one inside surface of side wall of described bellows, further reduces noise with this.
[description of drawings]
Below in conjunction with accompanying drawing preferred implementation of the present utility model is elaborated.
Fig. 1 is the view that preferred implementation of the utility model smoke exhaust ventilator is seen from the side.
Fig. 2 is the blower fan system rearview that sound-absorbing spare is not installed.
Fig. 3 is the rearview of the blower fan system behind the installation sound-absorbing spare.
Fig. 4 is the cutaway view of A-A line in Fig. 3.
Fig. 5 is the schematic diagram of different embodiment sound-absorbing spares.
[specific embodiment]
As shown in Figure 1, smoke exhaust ventilator 100 normally is installed on the side walls in kitchen, is used for taking away the flue gas that especially produces in cooking process that contains particles such as grease, steam.
As shown in Figure 1, this smoke exhaust ventilator 100 comprise flat cover body 2, be positioned at the bellows 1 of these cover body 2 tops.The air that contains particles such as grease, steam that produces in the cooking process enters bellows 1 by the air inlet on the cover body 2 20, described air inlet 2 is provided with bucket-shaped filter (not indicating), when fats/oils liquid contacts with filter, fats/oils liquid is held, thus the particle in can filtered airflow.
Be provided with the blower fan system that produces suction energy in the bellows 1.This blower fan system comprise volute 3 and be installed on the volute 3 by electrically driven (operated) blower fan, this blower fan comprises motor 4 and receded disk impeller 5.Thereby the rotation of motor 4 is passed to impeller 5 by one impeller 5 is rotated.
As shown in Figure 2, the rear wall 32 of volute 3 is provided with installing port 34, and motor 4 passes the inside that this installing port 34 enters volute 3.Motor 4 is fixed on the rear wall 32 of volute 3 by fixture 41, and motor 4 comprises the part that stretches out rear wall 32, as shown in Figure 4.Have the gap between the edge of installing port 34 and the motor 4, thereby form opening 34a along the described part of motor 4.As shown in Figure 3 and Figure 4, this opening 34a is by 9 sealings of sound-absorbing spare, thereby sound-absorbing spare 9 and gas channel 35 communicate, and directly contact with sound-absorbing spare 9 after air-flow enters volute 3, and noise generated by air flow is absorbed by sound-absorbing spare 9, and noise is lowered.
Except being provided with the sound-absorbing spare 9 around motor 4, rear wall 32 is also forming some openings 37 away from motor 4 installing ports 34 places, and these openings 37 are also by 9 sealings of sound-absorbing spare.Can also can make opening 34a, 37 by sound-absorbing spare separately 9 sealings by all opening 34a, 37 of a slice sound-absorbing spare 9 sealing rear walls 32.Need to prove that rear wall 32 can only be provided with opening 34a and opening 37 is not set, opening 37 or part wherein perhaps can be set, and opening 34a is not set.
In addition, also can form opening 37, and sound-absorbing spare 9 is set in an identical manner at the antetheca 31 and/or the sidewall 33 of volute 3.
Described sound-absorbing spare 9 is sponge or foam or foamed plastics with the part that gas channel 35 communicates at least.Thereby sound-absorbing spare 9 stick on the antetheca 31 of volute 3 and/or rear wall 32 and/seal corresponding opening 34a, 37 on the sidewall 33.
Shown in Fig. 5 a and Fig. 5 b, the inner surface 9a of sound-absorbing spare 9 can be uneven, heaving of the sea.The outer surface 9b of sound-absorbing spare 9b also can be uneven.Rough inner surface 9a and/or outer surface 9b can increase the sound-absorbing effect of sound-absorbing spare 9.Certainly surfaces externally and internally 9a, the 9b of sound-absorbing spare 9 can be flat.Need to prove that the notion of uneven peace is from macroeconomic significance here.
By the sound-absorbing spare 9 that is provided with on volute 3 and gas channel 35 communicates, noise can reduce 2dB to about the 5dB, and the user can feel obviously that noise reduces, and this is ten minutes obvious improvement to smoke exhaust ventilator 100.
As Fig. 1, Fig. 2 and shown in Figure 3, the rear wall 32 of volute 3 is provided with some first retaining elements 61, and on the differing heights of the longitudinal axis of bellows 1, first retaining element 61 has different length because of its height of living in.Be provided with second fixture 62 that is connected with air stream outlet 36 between the air stream outlet 36 of volute 3 and the roof 12 of bellows 1, angulation β between the upper surface of this second fixture 62 and the lower surface.Thereby volute 3 can be mounted obliquely within the space 11, the formation angle α between suction inlet plane, 30 place and the front side wall 10, and preferably, described angle α is between 5 degree and 20 degree, and especially 10 spend.Described angle [alpha] and β are about equally.Because volute 3 tilts to install, the antetheca 31 of volute 3 forms guide face, thereby improves air-flow flowing in space 11, under the almost nondecreasing situation of maximum intake, can improve and reduce the noise that produces owing to air-flow.
The below of volute 3 connects an oil-collecting part 8, and as shown in Figure 1, the fluid in volute 3 splashes on the oil-filtering apparatus that is positioned at below the volute 3 by this oil-collecting part 8, and finally imports one and be positioned at oil collection box (not shown).
As shown in Figure 1, the inner surface of described bellows 1 front side wall 10 is provided with the second sound-absorbing spare 9 ', and this second sound-absorbing spare 9 ' is pasted on this inner surface.The described second sound-absorbing spare 9 ' is sponge or foam or foamed plastics.Air-flow enters after the bellows 1, can contact with the first sound-absorbing spare 9 ', thereby further reduce noise generated by air flow.This second sound-absorbing spare 9 ' also can be arranged on the left and right sides sidewall of rear wall 10 ' or bellows 1, perhaps is arranged on two or more sidewalls of bellows 1 simultaneously.
Claims (9)
1. smoke exhaust ventilator, comprise by electrically driven (operated) blower fan and in order to the volute of this blower fan to be installed, this volute comprises gas channel and the air flow inlet and the air stream outlet that communicate with this gas channel, and it is characterized in that: described volute is provided with sound-absorbing spare, and described sound-absorbing spare and described gas channel communicate.
2. smoke exhaust ventilator as claimed in claim 1 is characterized in that: described volute is provided with the opening that communicates with gas channel, and described sound-absorbing spare seals this opening.
3. smoke exhaust ventilator as claimed in claim 2, it is characterized in that: described volute comprises the antetheca that is provided with described air flow inlet, the rear wall relative with this antetheca and the sidewall that connects described antetheca and rear wall, and the described opening that is sealed by sound-absorbing spare is arranged on this antetheca and/or rear wall and/or the sidewall.
4. smoke exhaust ventilator as claimed in claim 3 is characterized in that: described rear wall has in order to the installing port of blower fan to be installed, and blower fan comprises the part of passing this installing port, forms described opening between the edge of installing port and this part, and this opening is sealed by sound-absorbing spare.
5. as claim 1 or 2 or 3 or 4 described smoke exhaust ventilators, it is characterized in that: described sound-absorbing spare sticks on this volute.
6. as the described smoke exhaust ventilator of above any one claim, it is characterized in that: described sound-absorbing spare comprises the inner surface towards described gas channel, and described inner surface is uneven.
7. as the described smoke exhaust ventilator of above any one claim, it is characterized in that: described sound-absorbing spare is sponge or foam or foamed plastics with the part that gas channel communicates at least.
8. smoke exhaust ventilator as claimed in claim 3 is characterized in that: described volute tilts to be installed in the bellows of smoke exhaust ventilator, and described antetheca forms guide face.
9. smoke exhaust ventilator as claimed in claim 8 is characterized in that: also comprise the second sound-absorbing spare, this second sound-absorbing spare is pasted at least one inside surface of side wall of described bellows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620165243 CN200993431Y (en) | 2006-12-22 | 2006-12-22 | Kitchen hood |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620165243 CN200993431Y (en) | 2006-12-22 | 2006-12-22 | Kitchen hood |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN200993431Y true CN200993431Y (en) | 2007-12-19 |
Family
ID=38946506
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620165243 Expired - Fee Related CN200993431Y (en) | 2006-12-22 | 2006-12-22 | Kitchen hood |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN200993431Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102072514A (en) * | 2011-01-20 | 2011-05-25 | 宁波方太厨具有限公司 | Noise reducing method for range hood and low-noise range hood |
| CN102478268A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Spiral case and range hood with same |
| CN104913360A (en) * | 2015-07-06 | 2015-09-16 | 苏州斯洛莱自动化设备有限公司 | Range hood with noise reduction mask |
| CN106322474A (en) * | 2016-08-28 | 2017-01-11 | 杭州老板电器股份有限公司 | Flow-guiding, sound-absorbing and three-dimensional noise-reducing system of kitchen ventilator |
| CN106839023A (en) * | 2015-12-07 | 2017-06-13 | 浙江苏泊尔家电制造有限公司 | Air guide structure and lampblack absorber |
-
2006
- 2006-12-22 CN CN 200620165243 patent/CN200993431Y/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102478268A (en) * | 2010-11-30 | 2012-05-30 | 博西华电器（江苏）有限公司 | Spiral case and range hood with same |
| CN102478268B (en) * | 2010-11-30 | 2016-09-28 | 博西华电器（江苏）有限公司 | Spiral case and be provided with the smoke exhaust ventilator of this kind of spiral case |
| CN102072514A (en) * | 2011-01-20 | 2011-05-25 | 宁波方太厨具有限公司 | Noise reducing method for range hood and low-noise range hood |
| CN104913360A (en) * | 2015-07-06 | 2015-09-16 | 苏州斯洛莱自动化设备有限公司 | Range hood with noise reduction mask |
| CN106839023A (en) * | 2015-12-07 | 2017-06-13 | 浙江苏泊尔家电制造有限公司 | Air guide structure and lampblack absorber |
| CN106322474A (en) * | 2016-08-28 | 2017-01-11 | 杭州老板电器股份有限公司 | Flow-guiding, sound-absorbing and three-dimensional noise-reducing system of kitchen ventilator |
| CN106322474B (en) * | 2016-08-28 | 2019-04-19 | 杭州老板电器股份有限公司 | A kind of water conservancy diversion sound-absorbing solid noise reduction system of kitchen ventilator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20071219 Termination date: 20131222 |