CN106455416A - Device for controlling electronic device fun starting noise - Google Patents
Device for controlling electronic device fun starting noise Download PDFInfo
- Publication number
- CN106455416A CN106455416A CN201610743674.XA CN201610743674A CN106455416A CN 106455416 A CN106455416 A CN 106455416A CN 201610743674 A CN201610743674 A CN 201610743674A CN 106455416 A CN106455416 A CN 106455416A
- Authority
- CN
- China
- Prior art keywords
- fan
- speed
- noise
- module
- pwm
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20136—Forced ventilation, e.g. by fans
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D27/00—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids
- F04D27/004—Control, e.g. regulation, of pumps, pumping installations or pumping systems specially adapted for elastic fluids by varying driving speed
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
- H05K7/20209—Thermal management, e.g. fan control
Abstract
The invention relates to the noise control technology of electronic products and particularly to a device for controlling electronic device fun starting noise. In the prior art, when an electronic device starts, the fan starts to rotate at full speed, and when a system starts, the fan produces greater noise due to the sudden high-speed operation, so that the customer experience is poor. Compared with a PWM speed regulation control system in the prior art, a PWM speed regulation control system in the prior art is additionally provided with a speed regulation control strategy selection module and a power-on starting speed regulation control strategy module, the speed regulation control strategy selection module gives the rotation speed control right of the fan to the power-on starting speed regulation control strategy module when a device is powered on to be started, the power-on starting speed regulation control strategy module gradually increases the rotation speed of the fan from 0, in this way, the fan starts slowly in the power-on starting stage of the system, the noise is slowly increased, and the customer experience is optimized. In addition, the fan starts slowly, the impact current during the system starting is reduced, and the system reliability is improved.
Description
Technical field
The present invention relates to the noise control technique of electronic product, be that a kind of control electrical equipment fan starts in particular
The device of noise.
Background technology
Owing to chip power-consumption is higher on complex electronic equipment, it usually needs configuration fan carries out wind-cooling heat dissipating to equipment,
When running with guarantee equipment, the temperature of chip is in safe range.It is typically designed with circuit for controlling speed of fan on equipment, dissipating
Heat condition difference, during chip temperature height, control circuit control fan operates in very fast rotating speed, preferable at radiating condition, chip temperature
When relatively low, control circuit reduces the rotating speed of fan.
The adjustable fan of rotating speed generally can receive PWM square wave, and the rotating speed of fan is related to the dutycycle of PWM square wave.Reference
Accompanying drawing 1, complete fan rotary speed control system generally includes temp measuring system, processor system, PWM speed regulating control system and fan
Four parts.The chip temperature getting is given processor system by temp measuring system, and processor is carried out according to fan speed-regulating strategy
Computing obtains the rotating speed needed for fan, and processor system control pwm circuit produces the rotating speed that corresponding waveform controls fan.Wind
The noise of equipment can be increased during fan operating, and the bigger noise of rotating speed is bigger.The principle of usual fan speed-regulating strategy is to ensure core
Piece reduces the rotating speed of fan as far as possible within the scope of being operated in safe temperature, reduce system noise, increase the mesh of fan life
's.
But during device power starts, processor cannot run speed adjustment strategy and be controlled rotation speed of the fan.
Common practice is to allow fan with full speed running, until processor system starts to finish is carried out speed governing by processor to fan again.
So when system starts, fan operates suddenly and can produce suddenly noise, and processor startup finishes operation fan speed-regulating strategy
Can find in the case of Jue great Bu Fen that the rotating speed of acquiescence is too high, and then turn down rotating speed.System start-up phase, from the angle of noise analysis
From the point of view of Du, the state of system performance is to send suddenly bigger noise from rest state, returns again to less noise states afterwards,
Customer experience is poor.The present invention seeks to solve the problem of system start-up phase noise sudden change, optimizes customer experience.
Content of the invention
Present invention aim at providing a kind of device controlling electrical equipment fan startup noise, can solve above-mentioned
Problem.In order to realize foregoing invention purpose, technical scheme is as follows：A kind of electrical equipment fan that controls starts noise
Device, a kind of device controlling electrical equipment fan startup noise, including temp measuring system, processor system, PWM speed regulating control
System and fan；Described temp measuring system is connected with processor system, and described PWM speed-adjusting and control system comprises electrifying startup
Speed regulating control policy module, processor speed regulating control interface, speed regulating control strategy selection module and pwm signal generation module；Institute
The processor speed regulating control interface stated and electrifying startup speed regulating control policy module respectively with speed regulating control strategy selection module phase
Connect；Described processor speed regulating control interface and electrifying startup speed regulating control policy module respectively with pwm signal generation module
It is connected；Described described processor system is connected with PWM speed-adjusting and control system, described pwm signal generation module with
Fan is connected.
The method have technical effect that：PWM speed-adjusting and control system in compared to existing technology, the PWM speed governing of the present invention
Control system adds speed regulating control strategy selection module and electrifying startup speed regulating control policy module；Speed regulating control policy selection
The rotating speed control of fan can be given electrifying startup speed regulating control policy module when device power starts by module, and electrifying startup is adjusted
Speed control strategy module can be from 0 rotating speed starting to step up fan, and so startup stage system electrification, fan slowly opens
Dynamic, the noise of system is also to be slowly increased, and is compared to emergent noise during equipment startup in prior art, optimizes client
Experience.On the other hand, fan slowly starts, and also reduces dash current when system starts, improves the reliability of system.
Brief description：
Fig. 1 is the structural schematic block diagram of prior art wind fan revolution speed control system；
Fig. 2 is the structural schematic block diagram of the fan rotary speed control system in the present invention；
Detailed description of the invention：
The invention provides a kind of device controlling electrical equipment fan startup noise.In order to be better understood from the technology of the present invention
Embodiments of the present invention are described in detail by scheme below in conjunction with the accompanying drawings.Referring to the drawings 2, a kind of control electronic equipment
The device of starting fan noise, including temp measuring system the 10th, processor system the 20th, PWM speed-adjusting and control system 30 and fan 40；Described
Temp measuring system 10 be connected with processor system 20, described PWM speed-adjusting and control system 30 comprises electrifying startup speed regulating control
Policy module the 31st, processor speed regulating control interface the 32nd, speed regulating control strategy selection module 33 and pwm signal generation module 34；Institute
The processor speed regulating control interface 32 stated and electrifying startup speed regulating control policy module 31 respectively with speed regulating control policy selection mould
Block 33 is connected；Described processor speed regulating control interface 32 and electrifying startup speed regulating control policy module 31 are believed with PWM respectively
Number generation module 34 is connected；Described described processor system 20 is connected with PWM speed-adjusting and control system 30, described
Pwm signal generation module 34 is connected with fan 40.
When the present invention implements, in the case of system normal operating condition, temp measuring system 10 is obtained the temperature of chip and give
Reason device system 20, processor system 20 calculates rotation speed of the fan required under Current Temperatures according to certain speed adjustment strategy, passes through
Rotary speed parameter is given pwm signal generation module 34 by processor speed regulating control interface 32, and pwm signal generation module 34 produces accordingly
Pwm pulse control fan 40 and run with required rotating speed.
Rotating speed at electrifying startup stage fan 40 is not controlled by processor system 20, but by PWM speed regulating control system
System 30 controls self.In the electrifying startup stage, PWM speed-adjusting and control system 30 makes rotation speed of the fan start to step up from 0, directly
Till when reaching fan maximum speed or processor system 20 adapter fan 40.So client perception to system noise be one
The individual process being slowly increased, sudden change, does not optimizes customer experience.
PWM speed-adjusting and control system 30 is the core component of the present invention.PWM speed-adjusting and control system 30 mainly includes powering on opening
Dynamic speed regulating control policy module the 31st, processor speed regulating control interface the 32nd, speed regulating control strategy selection module the 33rd, pwm signal produces
Module 34；Its particular hardware carrier can be programmable logic device (CPLD) single-chip microcomputer, DSP etc..
In the electrifying startup stage, speed regulating control strategy selection module 33 selects electrifying startup speed regulating control policy module 31 to control
Fan 40 processed, the rotating speed that electrifying startup speed regulating control policy module 31 controls fan 40 starts to start from 0, is stepped up rotating speed,
The step-length that rotating speed increases is all configurable with time interval.Pwm signal generation module 34 transmits turning according to control strategy
Speed parameter produces corresponding pwm pulse control fan 40 and operates.Electrifying startup speed regulating control policy module 31 continues to increase fan
The rotating speed of 40 is until fan 40 runs to maximum speed or fan 40 is taken over by processor system 20.Generally at fan 40
It is not reaching to maximum speed front processor system 20 and can start the speed regulating control finishing and beginning to take over fan 40.Processor system
After 20 startups finish, speed regulating control strategy selection module 33 can be by controlling tactic switch to processor system 20.Processor system
20 according to the chip temperature collecting, the rotation speed of the fan needed for computing.Processor system 20 from the beginning of the current rotating speed of fan 40, by
The rotating speed of successive step fan 40, until the rotating speed of fan 40 meets demand, what so two kinds of switchover policy switchings of elimination brought turns
Speed sudden change and noise sudden change.
The present invention has only been carried out exemplary illustrated by above detailed description of the invention, and the content of this specification is understood not to
Limitation of the present invention.
Claims (1)
1. control electrical equipment fan and start a device for noise, including temp measuring system（10）, processor system（20）、PWM
Speed-adjusting and control system（30）And fan（40）；Described temp measuring system（10）With processor system（20）Being connected, its feature exists
In：Described PWM speed-adjusting and control system（30）Comprise electrifying startup speed regulating control policy module（31）, processor speed regulating control connects
Mouthful（32）, speed regulating control strategy selection module（33）With pwm signal generation module（34）；Described processor speed regulating control interface
（32）With electrifying startup speed regulating control policy module（31）Respectively with speed regulating control strategy selection module（33）It is connected；Described
Processor speed regulating control interface（32）With electrifying startup speed regulating control policy module（31）Respectively with pwm signal generation module（34）
It is connected；Described described processor system（20）With PWM speed-adjusting and control system（30）Be connected, described pwm signal produces
Raw module（34）With fan（40）It is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743674.XA CN106455416A (en) | 2016-08-29 | 2016-08-29 | Device for controlling electronic device fun starting noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610743674.XA CN106455416A (en) | 2016-08-29 | 2016-08-29 | Device for controlling electronic device fun starting noise |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN106455416A true CN106455416A (en) | 2017-02-22 |
Family
ID=58182362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610743674.XA Pending CN106455416A (en) | 2016-08-29 | 2016-08-29 | Device for controlling electronic device fun starting noise |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN106455416A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503968A (en) * | 2017-09-22 | 2017-12-22 | 安徽皖通邮电股份有限公司 | A kind of temperature self-adaptation fan control device |
| CN108181974A (en) * | 2018-01-24 | 2018-06-19 | 郑州云海信息技术有限公司 | A kind of server fan soft start control method and system |
| CN110043498A (en) * | 2019-04-11 | 2019-07-23 | 苏州浪潮智能科技有限公司 | A kind of server fan rotating speed regulation device, method and system |
| CN112460053A (en) * | 2020-11-12 | 2021-03-09 | 山东云海国创云计算装备产业创新中心有限公司 | Fan control method, system, equipment and storage medium |
| CN113543583A (en) * | 2021-06-07 | 2021-10-22 | 新华三信息安全技术有限公司 | Equipment heat dissipation method |
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| US20080007194A1 (en) * | 2006-03-31 | 2008-01-10 | Philippe Mace | Method of servo controlling the speed of an electric motor on start-up, and apparatus implementing the system |
| CN101876328A (en) * | 2009-10-29 | 2010-11-03 | 浪潮电子信息产业股份有限公司 | Method for reducing start-up noises of server system |
| CN102444598A (en) * | 2010-09-30 | 2012-05-09 | 鸿富锦精密工业（深圳）有限公司 | Fan rotational speed control device and method thereof |
| CN103362838A (en) * | 2012-03-30 | 2013-10-23 | 中国长城计算机深圳股份有限公司 | Computer and radiating fan drive delay control circuit |
| CN203748174U (en) * | 2013-12-26 | 2014-07-30 | 大唐移动通信设备有限公司 | Base station frame |
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| CN105577037A (en) * | 2014-10-31 | 2016-05-11 | 台达电子工业股份有限公司 | Method for controlling fan start-up and fan |
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- 2016-08-29 CN CN201610743674.XA patent/CN106455416A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20080007194A1 (en) * | 2006-03-31 | 2008-01-10 | Philippe Mace | Method of servo controlling the speed of an electric motor on start-up, and apparatus implementing the system |
| CN101876328A (en) * | 2009-10-29 | 2010-11-03 | 浪潮电子信息产业股份有限公司 | Method for reducing start-up noises of server system |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107503968A (en) * | 2017-09-22 | 2017-12-22 | 安徽皖通邮电股份有限公司 | A kind of temperature self-adaptation fan control device |
| CN108181974A (en) * | 2018-01-24 | 2018-06-19 | 郑州云海信息技术有限公司 | A kind of server fan soft start control method and system |
| CN110043498A (en) * | 2019-04-11 | 2019-07-23 | 苏州浪潮智能科技有限公司 | A kind of server fan rotating speed regulation device, method and system |
| CN112460053A (en) * | 2020-11-12 | 2021-03-09 | 山东云海国创云计算装备产业创新中心有限公司 | Fan control method, system, equipment and storage medium |
| CN113543583A (en) * | 2021-06-07 | 2021-10-22 | 新华三信息安全技术有限公司 | Equipment heat dissipation method |
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| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170222 |
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| RJ01 | Rejection of invention patent application after publication |