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Check mechanism of fan

A non-return flow and fan technology, which is applied to mechanical equipment, machines/engines, non-variable pumps, etc., can solve problems such as unfavorable heat dissipation and pressure balance damage, and achieve the effect of preventing damage or crashing and reducing heat dissipation efficiency

Inactive Publication Date: 2007-06-20
ASIA VITAL COMPONENTS SHENZHEN CO LTD
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  • Abstract
  • Description
  • Claims
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Problems solved by technology

[0004] There are problems in the implementation of the above-mentioned structure. When a plurality of parallel cooling fans 11 are in normal operation, the pressure of the gaseous fluid in the system 12 is equal to the pressure outside the system 12 (as shown in Figure 1); but when one of the cooling fans 11 When the damage stops, the pressure balance is broken at this time, causing the fluid flowing into the system 11 to flow out of the system 12 from the damaged cooling fan 11 (as shown in Figure 2), so that the flow field changes and is not conducive to heat dissipation , due to the use of systems 12 such as industrial computers or servers, they cannot tolerate too long downtime (such as the automatic control of a production line, the downtime will be proportional to the loss), causing the system 12 to crash when it is too late to replace the cooling fan 11

Method used

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Embodiment Construction

[0023] The present invention provides a fan anti-return mechanism, the diagram is a preferred embodiment of the present invention, please refer to Figures 3, 3A, 4, and 5, as shown in the figure, it includes a frame body 21, a fan wheel 22 and At least two blocking parts 231, 232, wherein the frame body 21 has an inlet 211 (as shown in Figure 4) and an outlet 212, and grooves 213 are provided on the opposite sides of the outer edge of the frame body 21, and the grooves 213 is provided with at least one linkage device 24; the fan wheel 22 is pivotally connected to the frame body 21, which includes a hub 221 and a plurality of fan blades 222 extending radially outward along the periphery of the hub 221; The at least two blocking parts 231 and 232 are pivotally arranged on the outlet 212 side of the frame body 21 , and one of the blocking parts 232 is connected to the linkage device 24 .

[0024] The above-mentioned four corners of the outer edge of the frame body 21 are respecti...

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Abstract

A fan non-return mechanism comprises a frame, a fan wheel and at least two blocking parts. The frame has an inlet, an outlet and at least a linkage. The fan wheel pin-jointed in the frame includes a hub and several blades extended along the hub. The two blocking parts are pin-jointed on the outlet side of the frame and either one is connected with the linkage. When the fan stops rotating the other blocking part without connecting with the linkage can drive the linkage to slide.

Description

technical field [0001] The invention relates to a fan anti-return flow mechanism, in particular to a fan anti-return flow mechanism applied in a high-heating electronic equipment system to prevent the fluid flowing into the system from backflow. Background technique [0002] With the advancement of science and technology, the technology of electronics and network communication products has been greatly improved, and the execution speed of computers is getting faster and faster, especially for industrial hosts or servers. The temperature generated is getting higher and higher, and in order to effectively dissipate the temperature generated in the chassis to the outside of the system, so as to maintain the operation of each component at the allowable temperature, the cooling device has become an indispensable component, and generally effective The cooling device used to help heat dissipation is a cooling fan, and it uses multiple groups of cooling fans connected in parallel to...

Claims

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Application Information

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IPC IPC(8): F04D25/14G06F1/20
Inventor 林盟智张秋日李名哲
Owner ASIA VITAL COMPONENTS SHENZHEN CO LTD
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