CN102758798A - Fan device with noise reducing structure - Google Patents
Fan device with noise reducing structure Download PDFInfo
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- CN102758798A CN102758798A CN2011100498206A CN201110049820A CN102758798A CN 102758798 A CN102758798 A CN 102758798A CN 2011100498206 A CN2011100498206 A CN 2011100498206A CN 201110049820 A CN201110049820 A CN 201110049820A CN 102758798 A CN102758798 A CN 102758798A
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- blower fan
- impeller
- guide device
- flow guide
- fan apparatus
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Abstract
The invention discloses a fan device with a noise reducing structure, belonging to the auxiliary equipment of a range hood. The traditional fan device has the defect of high noise. The fan device comprises a fan, a volute and an impeller, wherein the impeller is connected with a motor shaft of the fan; the fan is fixed in the volute; a silencing hole penetrating through the volute wall is formed at the volute tongue of the volute, thus when the impeller operates at a high speed, the excess air flow is quickly discharged from the silencing hole to reduce the generation of vortex; and a guide device fixedly connected with the motor shaft of the fan is arranged in the impeller fixing position in the fan device, so that entering air flow is divided through the guide device and sequentially discharged through the impeller to reduce the generation of vortex inside. Through the invention, the noise of the fan device can be effectively reduced.
Description
One, technical field
The invention belongs to range hood supplementary equipment field, especially relevant in a kind of blower fan apparatus with denoising structure.
Two, background technique
The noise of kitchen ventilator is bigger in the existing market, and air-flow collided the eddy current that is generated each other when its noise was mainly derived from blower fan system and runs up, and the blower fan system internal vortex is many more, and noise is just big more.Blower fan system in the market generally is: two sides, front and back air intake, and the top air-out, the spiral case wall all seals; There is wind deflector at intake grill place at spiral case, and impeller is fixed with common impeller cap; The problem of this structure is: 1; The snail tongue portion of spiral case is the main region that blower fan system forms pressure, and blower fan system is through the pressure difference of the inside and outside of snail ligulate one-tenth, to reach the purpose of lampblack absorbing; Because space, snail tongue place is less; Air-flow is difficult to disposable discharge, and remaining air-flow forms eddy current easily, produces noise; 2, from the blower fan front and back side air intake, air-flow got into the running of back through impeller and gets into blower fan system when kitchen ventilator used, but when air-flow got into, if there is not orderly drainage, the air-flow unordered entering that will interlock formed eddy current easily in the middle of impeller, produce noise.
Three, summary of the invention
The present invention is exactly the big shortcoming of blower fan apparatus noise that will overcome traditional kitchen ventilator, and a kind of novel structure, the blower fan internal vortex is few, noise is little blower fan apparatus are provided, and the present invention provides following technological scheme for this reason:
A kind of blower fan apparatus with denoising structure; Comprise blower fan, spiral case and impeller, impeller is connected with the motor shaft of blower fan, and blower fan is fixedly mounted in the spiral case; It is characterized in that: be provided with the bloop that connects the spiral case wall at the snail tongue place of described spiral case; Make impeller when running up, the unnecessary air-flow here can be discharged rapidly through bloop, reduces the generation of eddy current here; Said impeller bearing in blower fan apparatus is provided with the flow guide device that is fixedly connected with the motor shaft of blower fan, makes the air communication of entering cross flow guide device and is added on shunting, is discharged from through impeller in order, reduces inner eddy current and produces.
As the further of technique scheme improved and replenish, the present invention also comprises following additional technical feature:
Described bloop can also be arranged on the spiral case wall with snail tongue connecting place.
The shape of described bloop can be circular, square, oval, semicircle, and diameter can be between the 0.5mm-5mm, and quantity can 1 be discharged between 100 rows, and every round can be between 3-50.
Described flow guide device set inside has screw, and the screw thread coupling of the motor shaft of this screw and blower fan is tightened flow guide device and can impeller be fixed, and has cancelled the nut that is used for fixing impeller, reduces manufacture cost.
Described flow guide device head is a cone shape, and is connected with wheel bottom.
Described flow guide device top is conical, and the bottom is cylindrical.
Described flow guide device top is conical, and the middle part is cylindrical, and the bottom is a chamfered transition.
The shape of described diversion column device can be circular, cylindrical, taper, turriform and square.
The material of described diversion column device can be plastics, nylon, metalwork.
The present invention can effectively reduce the formation of eddy current in the spiral case, thereby reduces the noise of range hood.
Four, description of drawings
Fig. 1 is a structural drawing of the present invention.
Fig. 2 is the structural drawing of the mode of execution 1 of flow guide device of the present invention.
Fig. 3 is the structural drawing of the mode of execution 2 of flow guide device of the present invention.
Fig. 4 is the structural drawing of the mode of execution 3 of flow guide device of the present invention.
Wherein, 1, flow guide device; 2, spiral case; 3, bloop; 4, snail tongue; 5, screw.
Five, embodiment
Below in conjunction with accompanying drawing the present invention is further narrated:
As shown in Figure 1, the present invention includes blower fan, spiral case 2 and impeller, impeller is connected with the motor shaft of blower fan; Blower fan is fixedly mounted in the spiral case 2; Snail tongue 4 places of spiral case 2 or with the spiral case wall of snail tongue 4 connecting places on or two places be provided with the bloop 3 that connects the spiral case wall simultaneously, the shape of bloop 3 can be circular, square, oval, semicircle, diameter can be between the 0.5mm-5mm; Quantity can 1 be discharged between 100 rows, and every round can be between 3-50; Impeller bearing in blower fan apparatus is provided with the flow guide device 1 that is fixedly connected with the motor shaft of blower fan, and this flow guide device 1 material can be plastics, nylon, metalwork.
In conjunction with shown in Figure 2, the head of this flow guide device 1 is a cone shape, and is connected with wheel bottom, and its set inside has screw 5, and this screw 5 matees with the screw thread of the motor shaft of blower fan, tightens flow guide device 1 and can impeller be fixed.
In conjunction with shown in Figure 3, the shape of this flow guide device 1 can also be that top is conical, and the bottom is cylindrical.
In conjunction with shown in Figure 4, the shape of this flow guide device 1 can also be that top is conical, and the middle part is cylindrical, and the bottom is a chamfered transition.
The shape of diversion column device 1 of the present invention can also be circular, cylindrical, taper, turriform and square.
Claims (9)
1. blower fan apparatus with denoising structure; Comprise blower fan, spiral case (2) and impeller; Impeller is connected with the motor shaft of blower fan, and blower fan is fixedly mounted in the spiral case (2), it is characterized in that: locate to be provided with the bloop (4) that connects the spiral case wall at the snail tongue (3) of described spiral case (2); Said impeller bearing in blower fan apparatus is provided with the flow guide device (1) that is fixedly connected with the motor shaft of blower fan.
2. a kind of blower fan apparatus with denoising structure according to claim 1 is characterized in that: described bloop (4) can also be arranged on the spiral case wall with snail tongue (3) connecting place.
3. a kind of blower fan apparatus according to claim 2 with denoising structure; It is characterized in that: the shape of described bloop (4) can be circular, square, oval, semicircle; Diameter can be between the 0.5mm-5mm; Quantity can 1 be discharged between 100 rows, and every round can be between 3-50.
4. a kind of blower fan apparatus according to claim 3 with denoising structure; It is characterized in that: described flow guide device (1) set inside has screw (5); This screw (5) matees with the screw thread of the motor shaft of blower fan, tightens flow guide device (1) and can impeller be fixed.
5. a kind of blower fan apparatus with denoising structure according to claim 4 is characterized in that: the head of described flow guide device (1) is a cone shape, and is connected with wheel bottom.
6. a kind of blower fan apparatus with denoising structure according to claim 4 is characterized in that: the top of described flow guide device (1) is for conical, and the bottom is cylindrical.
7. a kind of blower fan apparatus with denoising structure according to claim 4 is characterized in that: the top of described flow guide device (1) is for conical, and the middle part is cylindrical, and the bottom is a chamfered transition.
8. a kind of blower fan apparatus with denoising structure according to claim 4 is characterized in that: the shape of described diversion column device (1) can be circular, cylindrical, taper, turriform and square.
9. according to claim 5,6,7 or 8 described a kind of blower fan apparatus with denoising structure, it is characterized in that: the material of described diversion column device (1) can be plastics, nylon, metalwork.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100498206A CN102758798A (en) | 2011-04-26 | 2011-04-26 | Fan device with noise reducing structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011100498206A CN102758798A (en) | 2011-04-26 | 2011-04-26 | Fan device with noise reducing structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102758798A true CN102758798A (en) | 2012-10-31 |
Family
ID=47053389
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011100498206A Pending CN102758798A (en) | 2011-04-26 | 2011-04-26 | Fan device with noise reducing structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102758798A (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454647A (en) * | 2013-09-18 | 2015-03-25 | 广东美的厨房电器制造有限公司 | Fan used for range hood and range hood with same |
| CN106246604A (en) * | 2016-07-31 | 2016-12-21 | 关亚玲 | A kind of low noise cooker hood |
| CN106402974A (en) * | 2016-11-11 | 2017-02-15 | 宁波方太厨具有限公司 | Noise-reducing range hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN108488083A (en) * | 2018-04-26 | 2018-09-04 | 英飞凌（深圳）智慧科技有限公司 | A kind of wind turbine and air purifier |
| CN109882434A (en) * | 2019-04-01 | 2019-06-14 | 珠海格力电器股份有限公司 | Blower fan structure, aeration device and air conditioner indoor unit |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808090A (en) * | 1983-02-10 | 1989-02-28 | The Scott & Fetzer Company | Vacuum motor fan cover |
| US5286162A (en) * | 1993-01-04 | 1994-02-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of reducing hydraulic instability |
| CN201277205Y (en) * | 2008-10-24 | 2009-07-22 | 昆明理工大学 | Denoising centrifugal ventilation machine |
| US20100040456A1 (en) * | 2008-08-13 | 2010-02-18 | Furui Precise Component (Kunshan) Co., Ltd. | Centrifugal fan |
| CN202056108U (en) * | 2011-03-02 | 2011-11-30 | 嵊州市龙马冲件有限公司 | Fan device with noise reduction structure |
-
2011
- 2011-04-26 CN CN2011100498206A patent/CN102758798A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4808090A (en) * | 1983-02-10 | 1989-02-28 | The Scott & Fetzer Company | Vacuum motor fan cover |
| US5286162A (en) * | 1993-01-04 | 1994-02-15 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Method of reducing hydraulic instability |
| US20100040456A1 (en) * | 2008-08-13 | 2010-02-18 | Furui Precise Component (Kunshan) Co., Ltd. | Centrifugal fan |
| CN201277205Y (en) * | 2008-10-24 | 2009-07-22 | 昆明理工大学 | Denoising centrifugal ventilation machine |
| CN202056108U (en) * | 2011-03-02 | 2011-11-30 | 嵊州市龙马冲件有限公司 | Fan device with noise reduction structure |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104454647A (en) * | 2013-09-18 | 2015-03-25 | 广东美的厨房电器制造有限公司 | Fan used for range hood and range hood with same |
| CN104454647B (en) * | 2013-09-18 | 2017-08-04 | 广东美的厨房电器制造有限公司 | For the blower fan of range hood and the range hood with it |
| CN106246604A (en) * | 2016-07-31 | 2016-12-21 | 关亚玲 | A kind of low noise cooker hood |
| CN106402974A (en) * | 2016-11-11 | 2017-02-15 | 宁波方太厨具有限公司 | Noise-reducing range hood |
| CN106482187A (en) * | 2016-11-11 | 2017-03-08 | 宁波方太厨具有限公司 | A kind of noise reduction impeller and application have the range hood of this impeller |
| CN106402974B (en) * | 2016-11-11 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of noise reduction range hood |
| CN106482187B (en) * | 2016-11-11 | 2019-02-15 | 宁波方太厨具有限公司 | A kind of application has the range hood of noise reduction impeller |
| CN108488083A (en) * | 2018-04-26 | 2018-09-04 | 英飞凌（深圳）智慧科技有限公司 | A kind of wind turbine and air purifier |
| CN109882434A (en) * | 2019-04-01 | 2019-06-14 | 珠海格力电器股份有限公司 | Blower fan structure, aeration device and air conditioner indoor unit |
| CN109882434B (en) * | 2019-04-01 | 2024-02-27 | 珠海格力电器股份有限公司 | Fan structure, fresh air device and air conditioner indoor unit |
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| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
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Application publication date: 20121031 |