CN204371727U - A kind of low-noise fan - Google Patents
A kind of low-noise fan Download PDFInfo
- Publication number
- CN204371727U CN204371727U CN201520008194.XU CN201520008194U CN204371727U CN 204371727 U CN204371727 U CN 204371727U CN 201520008194 U CN201520008194 U CN 201520008194U CN 204371727 U CN204371727 U CN 204371727U
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- CN
- China
- Prior art keywords
- housing
- sheet
- enclose
- inducer
- blower fan
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Abstract
The utility model relates to a kind of low-noise fan, and it comprises housing, is embedded in fan blade, motor and inducer in housing in turn; Described inducer comprise be fixedly connected with housing circle sheet, coaxially arrange to be sleeved on circle sheet and enclose stepping down in sheet and enclose and be connected to step down and enclose and enclose the more than one guide card of sheet, adjacent described guide card encloses and encloses sheet and form wind guide channel with stepping down, described motor output shaft is fixedly connected with fan blade, blower fan arranges inducer at exhaust outlet, the change of the wind perpendicular to inner walls promoted by fan blade is parallel and housing, reduce flow-disturbing and the concussion of wind speed changed course, thus reduction sound is made an uproar, improve the efficiency of blower fan, the blower fan smaller volume noise step-down of equal efficiency; When the wind sent out by blower fan is become Parallel airflow, exhaust outlet avoids gas flow-disturbing further, increases directionality and the centrality of air-flow, increases the orientation of blower fan wind direction and the effect of remote air-supply.
Description
Technical field
The utility model relates to a kind of blower fan, is specifically related to a kind of low-noise fan.
Background technique
Blower fan is in the market structurally add that wind is sent by parabolic shape air channel by centrifugal wind wheel substantially, and small product size is large, and wind direction is through a passage break-in by force, the defect such as the loss of wind-force, noise so can be caused large; Be exactly the fan only having fan blade in addition, wind-force disperses, and do not concentrate, efficiency is low.
Model utility content
The purpose of this utility model is the defect overcoming prior art, provides the blower fan that a kind of volume is little, noise is low.
For achieving the above object, technical solution adopted in the utility model is as follows:
A kind of low-noise fan, it comprises housing, is embedded in fan blade, motor and inducer in housing in turn; Described inducer comprise be fixedly connected with housing circle sheet, coaxially arrange to be sleeved on circle sheet and enclose stepping down in sheet and enclose and be connected to step down and enclose and enclose the more than one guide card of sheet, adjacent described guide card encloses and encloses sheet and form wind guide channel with stepping down, the rotor of described motor is fixedly connected with fan blade, the stator of described motor is fixedly connected with circle of stepping down, described motor is fixedly connected with housing by inducer, described wind guide channel and housing parallel to an axis, described housing fan blade side is intake grill, and the inducer side of described housing is exhaust outlet.
Furtherly, step down described in and iris out side, air port and be provided with protective housing.
Furtherly, to prolong air-flow direction constant for the sectional area of described wind guide channel.
Furtherly, the cross section of described housing is circular.
Compared with prior art, the blower fan that the utility model provides arranges inducer at exhaust outlet, the change of the wind perpendicular to inner walls promoted by fan blade is parallel and housing, reduce flow-disturbing and the concussion of wind speed changed course, thus reduction sound is made an uproar, improve the efficiency of blower fan, the blower fan smaller volume noise step-down of equal efficiency; When the wind sent out by blower fan is become Parallel airflow, exhaust outlet avoids gas flow-disturbing further, increases directionality and the centrality of air-flow, increases the orientation of blower fan wind direction and the effect of remote air-supply.
Protective housing enters housing except preventing foreign matter, the flow-disturbing of circle of also avoiding stepping down at exhaust outlet place and backflow, and the air-flow of annular is guided the parallel airflow for column.
It is axially constant that wind guide channel sectional area prolongs housing, and the air-flow be directed to can be made closer to parallel, reduces the disturbance of air-flow, reduce in-fighting further.
Circular housing can make blower fan work efficiently.
Accompanying drawing explanation
Accompanying drawing 1 is the utility model structural representation;
Accompanying drawing 2 is the utility model inducer structural representation;
In the accompanying drawings: 1 housing, 2 fan blades, 3 motors, 4 inducers, 41 circle sheets, 42 are stepped down circle, 43 guide cards, 44 wind guide channels, 5 protective housings.
Embodiment
Below in conjunction with accompanying drawing, detailed further describing is carried out to the utility model.
As shown in accompanying drawing 1,2, a kind of low-noise fan, is characterized in that: it comprises housing 1 and is embedded in fan blade 2, motor 3 and inducer 4 in housing 1 in turn, described inducer 4 comprises the circle sheet 41 be fixedly connected with housing 1, be sleeved on the circle 42 and being connected of stepping down enclosed in sheet 41 step down circle 42 and enclose the more than one guide card 43 of sheet 41 with coaxial setting of circle sheet 41, adjacent described guide card 43 with step down circle 42 and enclose sheet 41 and form wind guide channel 44, the rotor of described motor 3 is fixedly connected with fan blade 1, the stator of described motor 3 is fixedly connected with circle 42 of stepping down, described motor 3 is fixedly connected with housing 1 by inducer 4, described wind guide channel 44 and housing 1 parallel to an axis, described housing 1 fan blade side is intake grill, inducer 4 side of described housing 1 is exhaust outlet, blower fan arranges inducer at exhaust outlet, the change of the wind perpendicular to inner walls promoted by fan blade is parallel and housing, reduce flow-disturbing and the concussion of wind speed changed course, thus reduction sound is made an uproar, improve the efficiency of blower fan, the blower fan smaller volume noise step-down of equal efficiency, when the wind sent out by blower fan is become Parallel airflow, exhaust outlet avoids gas flow-disturbing further, increases directionality and the centrality of air-flow, increases the orientation of blower fan wind direction and the effect of remote air-supply.
Circle 42 exhaust outlet side of stepping down is provided with protective housing 5.Protective housing enters housing except preventing foreign matter, the flow-disturbing of circle of also avoiding stepping down at exhaust outlet place and backflow, and the air-flow of annular is guided the parallel airflow for column.
It is constant that the sectional area of wind guide channel 44 prolongs air-flow direction.It is axially constant that wind guide channel sectional area prolongs housing, and the air-flow be directed to can be made closer to parallel, reduces the disturbance of air-flow, reduce in-fighting further.
The cross section of housing 1 is circular.Circular housing can make blower fan work efficiently.
During work, motor 3 startup drives fan blade 2 rotary actuation air-flow to move to exhaust outlet, circle 42 of stepping down, circle sheet 41 and the wind guide channel 44 that formed of guide card 43 is entered by the air-flow that fan blade 2 promotes, through the guiding of wind guide channel 44, the parallel to an axis that air-flow prolongs housing 1 flows out housing 1, and the air-flow of annular forms parallel gas column through protective housing 5; This avoid the flow-disturbing in housing and air-flow concussion, namely decrease fan noise, turn improve the efficiency of blower fan, the blower fan smaller volume of equivalent effect.
The above mode of execution is only preferred embodiment of the present utility model, and is not the exhaustive of the feasible enforcement of the utility model.For persons skilled in the art, to any apparent change done by it under the prerequisite not deviating from the utility model principle and spirit, all should be contemplated as falling with within claims of the present utility model.
Claims (4)
1. a low-noise fan, is characterized in that: it comprises housing (1), is embedded in fan blade (2), motor (3) and inducer (4) in housing (1) in turn, described inducer (4) comprises the circle sheet (41) be fixedly connected with housing (1), with circle sheet (41) coaxial arrange to be sleeved on enclose stepping down in sheet (41) and enclose (42) and be connected the more than one guide card (43) of stepping down and enclosing (42) and enclosing sheet (41), adjacent described guide card (43) forms wind guide channel (44) with stepping down to enclose (42) and enclose sheet (41), the rotor of described motor (3) is fixedly connected with fan blade (1), the stator of described motor (3) encloses (42) and is fixedly connected with stepping down, described motor (3) is fixedly connected with housing (1) by inducer (4), described wind guide channel (44) and housing (1) parallel to an axis, described housing (1) fan blade side is intake grill, inducer (4) side of described housing (1) is exhaust outlet.
2. a kind of low-noise fan according to claim 1, is characterized in that: described in circle (42) exhaust outlet side of stepping down be provided with protective housing (5).
3. a kind of low-noise fan according to claim 1 and 2, is characterized in that: it is constant that the sectional area of described wind guide channel (44) prolongs air-flow direction.
4. a kind of low-noise fan according to claim 3, is characterized in that: the cross section of described housing (1) is circular.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008194.XU CN204371727U (en) | 2015-01-07 | 2015-01-07 | A kind of low-noise fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520008194.XU CN204371727U (en) | 2015-01-07 | 2015-01-07 | A kind of low-noise fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204371727U true CN204371727U (en) | 2015-06-03 |
Family
ID=53327951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520008194.XU Active CN204371727U (en) | 2015-01-07 | 2015-01-07 | A kind of low-noise fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204371727U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192116A (en) * | 2017-07-04 | 2017-09-22 | 珠海格力电器股份有限公司 | Heat exchanger unit's casing, heat exchanger unit and air conditioner |
-
2015
- 2015-01-07 CN CN201520008194.XU patent/CN204371727U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107192116A (en) * | 2017-07-04 | 2017-09-22 | 珠海格力电器股份有限公司 | Heat exchanger unit's casing, heat exchanger unit and air conditioner |
| CN107192116B (en) * | 2017-07-04 | 2023-12-08 | 珠海格力电器股份有限公司 | Shell of heat exchange unit, heat exchange unit and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20181214 Address after: 315300 Candun Street Political Access 369, Cixi City, Ningbo City, Zhejiang Province Patentee after: Ningbo Wofeng New Material Technology Co., Ltd. Address before: 315300 No. 478 Meilin Road, Baisha Road Street, Cixi City, Ningbo City, Zhejiang Province Patentee before: NINGBO WOFENG ELECTRIC APPLIANCE CO., LTD. |
|
| TR01 | Transfer of patent right |