Axial flow fan
A technology for axial flow fans and blowers, applied in axial flow pumps, mechanical equipment, machines/engines, etc., can solve the problems that axial flow fans cannot meet the application occasions, and achieve improved anti-vibration ability, strong preventive effect, and vibration reduction effect Improved effect
Active Publication Date: 2009-01-21
CHINA RAILWAYS CORPORATION +1
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Problems solved by technology
[0009] In view of the above-mentioned defects, the technical problem to be solved by the present invention is to provide an axial flow fan, which is specially designed for the working occasion of locomotive inverter heat dissipation, which can meet various requirements of the occasion and solve the problem of Solved the problem that the prior art axial flow fan could not satisfy this application
Method used
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[0031] Please see figure 1 , which is a front view of the fan provided by the first embodiment of the present invention.
[0032] As shown in the figure, the fan includes a driving motor 1, an impeller 2, and an air cylinder 3. The driving motor 1 is supported in the center of the air cylinder 3 by three U-shaped brackets 4 evenly distributed in the circumferential direction, that is, each bracket 4 are separated by 120 degrees. Since the brackets 4 are arranged symmetrically and have the same length, the axis of the driving motor 1 and the axis of the air cylinder 3 coincide. This way of fixing the driving motor 1 enables the driving motor 1 to obtain balanced support. In contrast, in the prior art, a V-shaped support is generally provided at the lower part of the drive motor 1. This V-shaped support makes the drive motor 1 only receive a support force in one direction, and cannot fully effectively control the vibration in all directions up, down, left, and right. Support,...
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The invention discloses an axial-flow fan, which comprises a driving motor, an impeller wheel and a wind-sock, the driving motor is supported in the center of the wind-sock by uniformly distributed three or four brackets in the circumferential direction, the axial line of the motor is coincided with that of the wind-sock, the brackets are in U shape, two lateral edges of the U shape are respectively connected with the motor and the wind-sock, one side of the wind-sock is fixed with two L-shaped bases which are symmetrically arranged with certain distance, the terminal of one edge of the base is fixedly connected with the wind-sock, the other edge, namely the bottom edge, extends outwards, the bases are made of metals, wherein one seat is equipped with an earth block, the motor of the fan utilizes a motor with high insulating quality, the impeller wheel has only one, and the diameter of the hub of the impeller wheel is larger than the outside diameter of the motor, the width of the blade of the impeller wheel is wider than motors with the same diameter in the prior art, and an arc-shaped cover plate which covers recessed portions is fixed at the front of the hub of the impeller wheel. The axial-flow fan is particularly suitable for being used as a radiating fan of a locomotive inverter, or used on other similar occasions.
Description
technical field [0001] The invention relates to a ventilator, in particular to an axial flow fan. Background technique [0002] Axial flow fans are relatively simple in structure, easy to process, and have been widely used, especially cooling fans for various electrical components, generally using axial flow fans. [0003] Although the prior art has provided various forms of axial flow fans for heat dissipation of electrical components, it is still difficult to obtain axial flow fans that meet the requirements for some special occasions. [0004] For example, the development of rail transit is changing with each passing day, and the high-speed EMUs on main lines are developing rapidly and gradually being applied. Due to the increasing operating speed, the heat generated by the inverter is also increasing, which puts forward higher requirements for the cooling system. Various heating elements inside the inverter dissipate heat to ensure the normal operation of the elements, ...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F04D19/00F04D29/60F04D29/38F04D29/00B60L15/02
CPCY02T10/7241Y02T10/72
Inventor 马伯乐荣智林陈燕平忻力
Owner CHINA RAILWAYS CORPORATION