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Axial fan

An axial flow fan and fan blade technology, which is applied to the components of pumping devices for elastic fluids, non-variable displacement pumps, machines/engines, etc., can solve problems such as damage to the hub connection and fatigue damage of the hub connection. , to achieve the effect of strength enhancement

Inactive Publication Date: 2005-03-09
LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] As a result, after using the axial flow fan 1 for a long time, fatigue damage occurs in the hub joint 11.
Or due to excessive rotation, the hub connection part 11 side is damaged

Method used

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Examples

Experimental program
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Embodiment Construction

[0028] A preferred embodiment of the axial flow fan according to the present invention will be described in detail below with reference to the accompanying drawings.

[0029] image 3 is a three-dimensional schematic diagram of the structure of a preferred embodiment of the axial flow fan according to the present invention; Figure 4 yes image 3 A cross-sectional view along the line A-A'.

[0030] As shown in the figure, the axial flow fan 30 of the embodiment of the present invention has a hub 40 at the center. The hub 40 is the part where the axial fan 30 is connected to the rotating shaft (not shown in the figure) of the motor, and has the rotation center of the axial fan 30 . Generally, the rotation center of the axial fan 30 is a boss (not shown) on the hub 40 . The rotating shaft of the motor is inserted into the sleeve.

[0031] There are several fan blades 50 around the outer peripheral surface of the hub 40 . When the axial fan 30 rotates, the fan blades 50 gui...

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PUM

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Abstract

An axial-flow fan is composed of a hub connected to motor, and several blades connected to external surface of hub and with gradually decreased thickness from its root to its top end. Its advantage is high connection strength of blade.

Description

technical field [0001] The present invention relates to an axial flow fan (Axial Flow Fan), in particular to an axial flow fan in which the airflow generated by the fan is formed in the length direction of the central axis of rotation of the fan. Background technique [0002] Generally, an axial flow fan is a machine that is rotated by a rotational force from an external drive source such as a motor, and blows air in an axial direction. It is not only suitable for home appliances such as electric fans, air conditioners and refrigerators, but also widely used in various fields such as space shuttles and generators. [0003] figure 1 It is a three-dimensional schematic diagram of an ordinary axial flow fan; figure 2 yes figure 1 A cross-sectional view along the line A-A'. [0004] As shown in the figure, the axial fan 1 has a hub 3 at its center. The hub 3 is a part connected with the rotating shaft of the motor (not shown in the figure), and is also the rotation center ...

Claims

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Application Information

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IPC IPC(8): F04D29/34
Inventor 李内英
Owner LG ELECTRONICS (TIANJIN) APPLIANCES CO LTD