an axial fan
An axial flow fan and fan technology, which is applied in the cleaning method using gas flow, the components and application of the pumping device for elastic fluid, etc. Large air resistance and other problems, to achieve the effect of increasing the air volume and air efficiency, improving the utilization rate of electric energy, and ensuring stability
Active Publication Date: 2017-05-17
SUZHOU SAMSUNG ELECTRONICS CO LTD +1
View PDF7 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] First: The connecting part between each blade is designed to be formed from the blade and used for blowing air along with the rotation. The connecting part is a thin-walled airfoil structure with a smooth transition from the blade airfoil. It is easy to vibrate, which affects the stability of the fan operation, and the air resistance on the blades will be greater, and the connection part may be easily broken due to force.
[0006] In addition, in order to consider the ease of making molds and the ease of stacking and transporting fans, a plane transition is added to the middle of the connecting part, which further exacerbates the risk of breaking the connecting part
[0007] Second: Since the blade and the connecting part are integrally formed with a thin-walled shape, the connecting part is a relatively flat transition, and the projected area of the connecting part in the center on a plane perpendicular to the fan axis is not much reduced, resulting in The negative effect is the impact on the central wind force, that is, the air outlet efficiency of the connection part is not much improved compared with the traditional axial fan
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0031] As shown in the background art, among the existing axial flow fans, for the axial flow fan with hub type, there is no wind outlet effect at the hub, so its air outlet efficiency is affected by the size of the hub area, and the material used for the hub It also increases the production cost of the axial flow fan. For the improvement of this fan, the design of the hub is canceled, and an integrally formed axial flow fan is proposed. Yet the existing hubless axial flow fan, because its joint and the joint in the middle of the fan blade are thin-walled airfoil structures that transition smoothly from the blade, due to the cancellation of the hub, the joint and the smaller rotating shaft The connection strength of the fan is greatly reduced. The thin wing design of this fan makes the fan prone to vibration during rotation, which increases the risk of breaking due to force. Moreover, due to the continuous airfoil-like structure, the wind outlet effect at the center of the fa...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
An axial flow fan, comprising a plurality of blades, which are arranged separately in the circumferential direction; a rotating shaft part, which is arranged at the rotation center of the plurality of blades, and has a shaft hole for installing a motor shaft; wherein each blade The root position of the blade is provided with a connecting sheet structure that connects the blade root to the rotating shaft and connects to each other. The connecting sheet structure of each blade is a V shape that is twisted from the suction side of the fan to the blowing side. The V The V-shaped opening faces the blowing side, the extension line of the V-shaped V-ridge passes through the axis of the rotating shaft and the root of the leading edge of the blade, and the plurality of blades, the connecting sheet structure and the rotating shaft are integrally formed. Therefore, the strength of the connecting piece structure and the entire fan connection part is improved, and the air outlet effect in the central area of the fan is improved.
Description
technical field [0001] The present invention relates to an axial flow fan, more specifically, a hubless axial flow fan. Background technique [0002] See figure 1 and figure 2 , figure 1 and figure 2 It depicts a traditional axial flow fan structure, which is basically composed of two parts, fan blade 1 and fan hub 2, fan blade 1 is installed on the side of hub 2 at a certain angle and in a certain way, and the center of hub 2 is the motor Install shaft hole 3. The hub 2 is generally cylindrical, with a large volume and a high amount of material used. The ratio of its diameter to the outer diameter of the fan is called the hub ratio, which generally ranges from 0.3 to 0.4. Restricted by structural design limitations of traditional axial flow fans and fan strength requirements, the hub 2 has always been an indispensable part in the design of axial flow fans (especially injection molded axial flow fans). Because the diameter of the fan hub 2 is too small, the blade can...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): F04D29/38
CPCA47L5/362B08B5/04
Inventor 黄华张辉
Owner SUZHOU SAMSUNG ELECTRONICS CO LTD