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Hot air backflow prevention device and method for server fan

A backflow device and server technology, applied in the direction of instruments, electrical digital data processing, digital data processing components, etc., can solve the problems of hot air backflow, failure to achieve heat dissipation effect, and reduced heat dissipation efficiency, so as to improve heat dissipation efficiency and design principles Reliable, Simple Effects

Inactive Publication Date: 2021-03-09
INSPUR SUZHOU INTELLIGENT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the heat dissipation design of the server, the fans will have N+1 redundant design. The purpose is that after one fan fails, the other remaining fans can still implement the current heat dissipation strategy, but when one fan fails, the other fans are working. Sometimes the hot air will flow back from the faulty fan, which will reduce the heat dissipation efficiency and fail to achieve the expected heat dissipation effect.

Method used

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  • Hot air backflow prevention device and method for server fan
  • Hot air backflow prevention device and method for server fan

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Please refer to figure 1 , this embodiment provides a server fan hot air backflow prevention device, including:

[0030] Adjustable fan intake baffle, BMC, fan.

[0031] Among them, the adjustable fan air inlet baffle can be controlled to close the vent of each fan; BMC is used to adjust the fan speed and monitor whether the fan is abnormal, and is also used to adjust the switch of the fan air inlet baffle.

[0032] An electronic motor is provided on the adjustable fan air inlet baffle, and one side of the air baffle is movably connected to the top of the air inlet through a rotating shaft, and the rotating shaft is connected to the electronic motor in transmission. The air inlet of each fan can be closed by controlling the electronic motor; assembled at the air inlet of the fan.

[0033] The BMC monitors the fan status through the TACH signal returned by the fan. When it detects that one of the fans is abnormal, it sets the PWM signal of the related fan to 0, and con...

Embodiment 2

[0035] Please refer to figure 2 , this embodiment provides a server fan anti-hot air backflow method, including:

[0036] (1) Store the corresponding relationship between the fan ID and the electronic motor identification code in the BMC.

[0037] (2) The BMC monitors the fan status through the TACH signal returned by the fan. After receiving the fan fault information, the BMC sets the PWM signal of the relevant fan to 0 when it detects that one of the fans is abnormal, and extracts the faulty fan ID from the fault information.

[0038] (3) The BMC searches for the corresponding electronic motor identification code of the faulty fan ID according to the corresponding relationship.

[0039] (4) The BMC sends instructions to the corresponding electronic motor according to the corresponding electronic motor identification code, and controls the corresponding windshield to rotate to close the air inlet. At the same time, the speeds of other fans are adjusted according to corresp...

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Abstract

The invention provides a hot air backflow prevention device and method for a server fan, and the device comprises a wind shield which is disposed at an air inlet of a server fan; the wind shield is connected with the electronic motor, and the electronic motor is electrically connected with the BMC. According to the device and method, the problem that in the design that the server has fan N + 1 redundancy, when one fan fails, hot air flows back from the failed fan can be effectively solved, so that the heat dissipation effect of the server is improved, and the heat dissipation power consumptionis reduced.

Description

technical field [0001] The invention belongs to the technical field of server heat dissipation, and in particular relates to a device and method for preventing hot air backflow of a server fan. Background technique [0002] In the heat dissipation design of the server, the fans will have N+1 redundant design. The purpose is that after one fan fails, the other remaining fans can still implement the current heat dissipation strategy, but when one fan fails, the other fans are working. Sometimes the hot air will flow back from the faulty fan, which will reduce the heat dissipation efficiency and fail to achieve the expected heat dissipation effect. Contents of the invention [0003] Aiming at the above-mentioned shortcomings of the prior art, the present invention provides a device and method for preventing hot air backflow of a server fan, so as to solve the above-mentioned technical problems. [0004] The present invention provides a device for preventing hot air backflow ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G06F1/20G06F1/18
CPCG06F1/183G06F1/20Y02D10/00
Inventor 王焕超于泉泉刘闻禹孙珑玲闫玉婕
Owner INSPUR SUZHOU INTELLIGENT TECH CO LTD