CN218093591U - High-efficiency low-noise axial flow fan - Google Patents
High-efficiency low-noise axial flow fan Download PDFInfo
- Publication number
- CN218093591U CN218093591U CN202222057905.5U CN202222057905U CN218093591U CN 218093591 U CN218093591 U CN 218093591U CN 202222057905 U CN202222057905 U CN 202222057905U CN 218093591 U CN218093591 U CN 218093591U
- Authority
- CN
- China
- Prior art keywords
- section
- blade
- hub
- main wing
- rim
- 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.)
- Active
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses a high-efficiency low-noise axial flow fan, which comprises a hub internally provided with a driving motor, wherein a wheel rim is sleeved on the hub, the central point of the wheel rim is positioned on the central point of the hub, and the wheel rim and the hub are consistent in height; eleven composite blades with the same shape are uniformly distributed between the hub and the rim, each composite blade comprises a main wing, the top of each main wing is fixedly connected with the rim, the heel of each main wing is fixedly connected with the hub, and two sides of each main wing are arc-shaped; the main wing is provided with ten sections along the blade height direction, wherein the section S0 is a blade heel section, the section S10 is a blade tip section, the sections S1 to S9 are sequentially located between the blade heel section and the blade tip section, and each section is configured by the section diameter, the chord length, the installation angle and the forward bending angle. The utility model discloses under the prerequisite that has promoted the amount of wind and efficiency, greatly reduced the noise.
Description
Technical Field
The utility model relates to a fan technical field particularly, especially relates to a high-efficient low noise axial fan.
Background
An axial flow fan comprises a hub and a plurality of blades distributed on the circumference of the hub, wherein each blade is provided with an airfoil, a front edge and a rear edge, air flows in from the front edge of each blade, and flows out from the rear edge of each blade after being boosted by the airfoil so as to push the air to flow in the same direction as a shaft, and the axial flow fan is commonly used in a heat exchanger or other air exchange equipment.
The fan blades can be excited and axially deformed along with the periodic interaction of the blades and air in the operation process, the blades without forward bending and in circumferential arrangement have high strength, but the noise cannot be reduced due to the concentrated positions of the front edges of the blades, and the balance of the strength and the noise is difficult to realize.
SUMMERY OF THE UTILITY MODEL
The utility model aims at overcoming the not enough of prior art existence, provide a high-efficient low noise axial fan.
The purpose of the utility model is realized through the following technical scheme:
a high-efficiency low-noise axial flow fan comprises a hub internally provided with a driving motor, wherein a wheel rim is sleeved on the hub, the central point of the wheel rim is positioned on the central point of the hub, and the wheel rim and the hub are consistent in height; eleven composite blades with the same shape are uniformly distributed between the hub and the rim, each composite blade comprises a main wing, the top of each main wing is fixedly connected with the rim, the heel of each main wing is fixedly connected with the hub, and two sides of each main wing are in an arc shape;
the main wing is provided with ten sections along the blade height direction, wherein the section S0 is a blade heel section, the section S10 is a blade tip section, the sections S1 to S9 are sequentially positioned between the blade heel section and the blade tip section, and each section is configured by the section diameter, the chord length, the installation angle and the forward bending angle;
preferably, the sections in the blade height direction are axially aligned with the trailing edge.
The beneficial effects of the utility model are mainly embodied in that: the chord length, the installation angle and the front bend angle of the blade are reasonably arranged, so that the air quantity and the efficiency are improved under the same air pressure condition; through the special arrangement of the main wing along the blade height direction, the front edge of the blade tends to be arc-shaped, and the distribution of noise sources is more dispersed on the premise of ensuring the strength, so that the noise of the fan is reduced.
Drawings
The technical scheme of the utility model is further explained by combining the attached drawings as follows:
FIG. 1: the utility model is a perspective view of the preferred embodiment;
FIG. 2: the utility model discloses the sectional view of main wing in the preferred embodiment.
Detailed Description
The present invention will be described in detail below with reference to specific embodiments shown in the drawings. However, these embodiments are not limited to the present invention, and structural, method, or functional changes made by those skilled in the art according to these embodiments are all included in the scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or to implicitly indicate a number of the indicated technical features. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.
The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
As shown in fig. 1-2, the utility model discloses a high-efficient low noise axial fan, including the built-in wheel hub 1 that has driving motor, the cover is equipped with a rim 2 on wheel hub 1, the central point of rim 2 is located on wheel hub 1's the central point, and highly uniform between them.
Still the equipartition has eleven the same composite blade 3 of shape between wheel hub 1 and the rim 2, each composite blade 3 all includes main wing 31, main wing 31's top of leaf 311 and 2 rigid couplings of rim, main wing 31's leaf is with wheel hub 1 rigid coupling with 312, main wing 31's both sides are circular-arcly.
The main wing 31 is provided with ten sections along the blade height direction, and all the sections along the blade height direction are aligned along the axial direction by adopting a trailing edge. The section S0 is a section of a blade heel 312, the section S10 is a section of a blade tip 311, the sections S1 to S9 are sequentially located between the section S0 and the section S, and each section is configured by a section diameter, a chord length, a mounting angle and a forward bending angle.
The beneficial effects of the utility model are mainly embodied in that: the chord length, the installation angle and the front bending angle of the blade are reasonably arranged, so that the air quantity and the efficiency are improved under the same air pressure condition; the front edge of the blade tends to be circular arc by special arrangement of the main wing along the blade height direction, and because the length of the front edge of the circular arc blade is greater than that of the front edge of the linear type blade under the limitation of the same hub radius and the same rim radius, the distribution of noise sources is more dispersed, and the noise of the fan is reduced. On the other hand, compared with the opposite-shape small blades, the integral blade structure also reduces the turbulence influence of the blades on the cut-in air side; more importantly, the strength of the blade is ensured by the current blade structure.
It should be understood that although the present description refers to embodiments, not every embodiment contains only a single technical solution, and such description is for clarity only, and those skilled in the art should make the description as a whole, and the technical solutions in the embodiments can also be combined appropriately to form other embodiments understood by those skilled in the art.
The above list of detailed descriptions is only for the specific description of the feasible embodiments of the present invention, and they are not intended to limit the scope of the present invention, and all equivalent embodiments or modifications that do not depart from the technical spirit of the present invention should be included within the scope of the present invention.
Claims (2)
1. High-efficient low noise axial fan, its characterized in that: the wheel hub comprises a wheel hub (1) with a built-in driving motor, wherein a wheel rim (2) is sleeved on the wheel hub (1), the central point of the wheel rim (2) is positioned on the central point of the wheel hub (1), and the wheel hub are consistent in height; eleven composite blades (3) with the same shape are uniformly distributed between the hub (1) and the rim (2), each composite blade (3) comprises a main wing (31), the top (311) of each main wing (31) is fixedly connected with the rim (2), the heel (312) of each main wing (31) is fixedly connected with the hub (1), and two sides of each main wing (31) are arc-shaped; the main wing (31) is provided with ten sections along the blade height direction, wherein the section S0 is a section of a blade heel (312), the section S10 is a section of a blade tip (311), S1 to S9 are sequentially positioned between the sections, each section is configured by the section diameter, the chord length, the installation angle and the forward bending angle,
2. the axial flow fan with high efficiency and low noise as claimed in claim 1, wherein: all sections in the blade height direction are aligned along the axial direction by adopting a tail edge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222057905.5U CN218093591U (en) | 2022-08-05 | 2022-08-05 | High-efficiency low-noise axial flow fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202222057905.5U CN218093591U (en) | 2022-08-05 | 2022-08-05 | High-efficiency low-noise axial flow fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218093591U true CN218093591U (en) | 2022-12-20 |
Family
ID=84487165
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202222057905.5U Active CN218093591U (en) | 2022-08-05 | 2022-08-05 | High-efficiency low-noise axial flow fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN218093591U (en) |
-
2022
- 2022-08-05 CN CN202222057905.5U patent/CN218093591U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201241864Y (en) | Wind impeller for fan | |
| CN206221361U (en) | Axial-flow windwheel and the air-conditioner with axial-flow windwheel | |
| CN107975494B (en) | Axial flow wind wheel and air conditioner | |
| CN109099009B (en) | Axial flow wind wheel, air conditioner outdoor unit and air conditioner | |
| CN203189343U (en) | Diversion type diagonal flow fan | |
| CN218093591U (en) | High-efficiency low-noise axial flow fan | |
| CN103486083A (en) | Fan blade wheel | |
| US9926943B2 (en) | Axial blower | |
| CN106895027A (en) | A kind of axial flow fan vane wheel | |
| CN105849417B (en) | The wing of cross flow fan | |
| CN106766045B (en) | Air supply assembly and air conditioner | |
| CN208918907U (en) | Axial-flow windwheel, air-conditioner outdoor unit and air conditioner | |
| CN206555180U (en) | A kind of axial flow fan vane wheel | |
| CN215908113U (en) | Novel axial flow wind wheel blade | |
| CN203685684U (en) | Fan blade wheel of fan | |
| CN214887792U (en) | Novel general centrifugal fan | |
| CN210484199U (en) | Centrifugal air duct structure, centrifugal fan and air purification equipment | |
| CN217271003U (en) | Seven-blade type efficient low-noise axial flow fan | |
| CN214661049U (en) | Stamping pump impeller | |
| CN107989827B (en) | Axial flow wind wheel and air conditioner | |
| CN219639117U (en) | Wind wheel with reinforced blade outer edge | |
| CN217327807U (en) | Centrifugal fan and centrifugal wind wheel thereof | |
| CN214366886U (en) | Axial flow fan blade | |
| CN217633007U (en) | Fan of fuel cell cooling tower | |
| CN215109660U (en) | Fan blade of fan heater |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |