CN2674162Y - Low noise vantilation fan - Google Patents
Low noise vantilation fan Download PDFInfo
- Publication number
- CN2674162Y CN2674162Y CN 200320123524 CN200320123524U CN2674162Y CN 2674162 Y CN2674162 Y CN 2674162Y CN 200320123524 CN200320123524 CN 200320123524 CN 200320123524 U CN200320123524 U CN 200320123524U CN 2674162 Y CN2674162 Y CN 2674162Y
- Authority
- CN
- China
- Prior art keywords
- fan blade
- power cavity
- blade
- housing
- fixed disk
- 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.)
- Expired - Fee Related
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a low noise ventilation fan used for the products of smoke exhaust ventilator, air-changing device, etc. The side wallboards on the left and right of a casing are respectively provided with an air inlet and an air outlet. The front wallboard of the casing is recessed inward to form a cylindrical power cavity. A driving motor is installed in the power cavity. The output shaft of the driving motor penetrates from the back end face of the power cavity and is connected with a blade fixed disk. The blade fixed disk is fixed with a plurality of blades vertical to the plane of the blade fixed disk. The blades are uniformly distributed on the periphery of the power cavity and are arranged in radial shape centered by the rotary shaft of the blade fixed disk. The front end of each blade is fixed on a circular fixed disk. The top and bottom of the casing are both tangential with the path of movement on the edge of the outer end of the blade, but a certain gap is left for the free rotation of the blade. The utility model has simple structure and easy realization, which can effectively reduce the noise on the side of the suction section of the products of smoke exhaust ventilator, air-changing device, etc.
Description
Technical field
The utility model relates to a kind of low noise air bells exhauster that is used for products such as lampblack exhauster, air interchanger.
Background technique
The air bells exhauster that uses in the products such as common lampblack exhauster, air interchanger, its noise is mainly derived from the air of air bells exhauster and discharges the section air current flow, because the transmission of shielding noise effectively between the air suction casing of existing structure air bells exhauster and the discharge section, thereby ubiquity the bigger problem of room noise when working.
Summary of the invention
Technical problem to be solved in the utility model is, a kind of simple in structure, low noise air bells exhauster of being easy to realize is provided, and makes it can effectively reduce the noise of product suction casing one sides (promptly indoor) such as lampblack exhauster, air interchanger.
Low noise air bells exhauster of the present utility model includes a housing, the left side of housing, have intake grill and exhaust outlet on the right two side wall panels, the front panel of housing is inwardly recessed, constitute a columnar power cavity, drive motor is installed in the power cavity, the output shaft of drive motor is passed by the ear end face of power cavity and is connected with a fan blade fixed tray, be fixed with a plurality of and the vertical fan blade in fan blade fixed tray plane on the fan blade fixed tray, it is peripheral and be that the center is radial and arranges with the rotating shaft of fan blade fixed tray that fan blade is evenly distributed on power cavity, the front end of each fan blade is fixed on the annular fixed disk, the end face of housing and bottom surface are all tangent with the movement locus of fan blade outer end edges, but but leave certain interval air feed leaf and rotate freely.One section transition inclined-plane is arranged between the end face of this external housing and the right side wall, and this transition inclined-plane is also tangent with the rotating locus at fan blade edge.
Air bells exhauster of the present utility model, because fan blade rotating locus and housing many places between its intake grill and the exhaust outlet are tangent, thereby all there is the fan blade shielding in arbitrary moment between intake grill and exhaust outlet, constitute a multiple door barrier of never opening, thereby significantly reduced the air discharge noise that air-flow produced to indoor transmission, reduced indoor noise.
Description of drawings
Fig. 1 is a Facad structure schematic representation of the present utility model.
Fig. 2 is a plan structure generalized section of the present utility model.
Embodiment
As shown in the figure, the housing of the utility model low noise air bells exhauster comprises front panel 1, rear wall plate 2, left side wall panel 3, right side wall panel 4, end face 5 and bottom surface 6, and rear wall plate 2 is dismountable structure.Intake grill 7 and exhaust outlet 8 are opened respectively on right side wall panel and left side wall panel, front panel 1 is inwardly recessed, constitute power cavity 9, drive motor 10 is installed in the power cavity, the ear end face that the output shaft 11 of drive motor passes power cavity drives 12 rotations of fan blade fixed tray, between an annular fixed disk 13 of the fan blade fixed tray 12 of rear end and front end, a plurality of fan blades 14 are installed, fan blade is enclosed in the power cavity periphery, and be radial and evenly arrange, the movement locus of fan blade 14 radial edges and the end face 5 of shell and bottom surface 6 are tangent.In order further to strengthen shield effectiveness to noise, one section transition inclined-plane 15 is arranged between end face 5 and right side wall panel 4, the transition inclined-plane is also tangent with the rotating locus at fan blade edge.
Claims (2)
1, a kind of low noise air bells exhauster, it includes a housing, the left side of housing, right two side wall panels (3,4) have intake grill (7) and exhaust outlet (8) on, it is characterized in that: the front panel of housing (1) middle part is inwardly recessed, constitute a columnar power cavity (9), drive motor (10) is installed in the power cavity, the output shaft of drive motor (11) is passed by the ear end face of power cavity and is connected with a fan blade fixed tray (12), be fixed with a plurality of fan blades (14) vertical on the fan blade fixed tray with fan blade fixed tray plane, it is peripheral and be that the center is radial and arranges with the rotating shaft of fan blade fixed tray that fan blade is evenly distributed on power cavity, the front end of each fan blade is fixed on the annular fixed disk (13), the end face of housing (5) and bottom surface (6) are all tangent with the movement locus of fan blade outer end edges, but but leave certain interval air feed leaf and rotate freely.
2, low noise air bells exhauster according to claim 1 is characterized in that: between the end face (5) of housing and right side wall (4) one section transition inclined-plane (15) is arranged, this transition inclined-plane is also tangent with the rotating locus at fan blade edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123524 CN2674162Y (en) | 2003-12-29 | 2003-12-29 | Low noise vantilation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320123524 CN2674162Y (en) | 2003-12-29 | 2003-12-29 | Low noise vantilation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2674162Y true CN2674162Y (en) | 2005-01-26 |
Family
ID=34476477
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320123524 Expired - Fee Related CN2674162Y (en) | 2003-12-29 | 2003-12-29 | Low noise vantilation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2674162Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089704A (en) * | 2011-10-31 | 2013-05-08 | Ge医疗***环球技术有限公司 | Fan assembly and electric device with same |
| CN104314816A (en) * | 2014-10-17 | 2015-01-28 | 上海智城分析仪器制造有限公司 | One-way valve type conduit absorption pump |
| CN111053425A (en) * | 2018-10-17 | 2020-04-24 | 广东美的白色家电技术创新中心有限公司 | Main unit and kitchen appliance with same |
-
2003
- 2003-12-29 CN CN 200320123524 patent/CN2674162Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103089704A (en) * | 2011-10-31 | 2013-05-08 | Ge医疗***环球技术有限公司 | Fan assembly and electric device with same |
| CN103089704B (en) * | 2011-10-31 | 2017-03-01 | Ge医疗***环球技术有限公司 | Fan component and the electrical equipment with this fan component |
| CN104314816A (en) * | 2014-10-17 | 2015-01-28 | 上海智城分析仪器制造有限公司 | One-way valve type conduit absorption pump |
| CN104314816B (en) * | 2014-10-17 | 2016-12-07 | 上海智城分析仪器制造有限公司 | Check valve gate-type conduit absorption pump |
| CN111053425A (en) * | 2018-10-17 | 2020-04-24 | 广东美的白色家电技术创新中心有限公司 | Main unit and kitchen appliance with same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |