CN113958525A - Noise reduction method for cooling fan of electronic equipment - Google Patents
Noise reduction method for cooling fan of electronic equipment Download PDFInfo
- Publication number
- CN113958525A CN113958525A CN202111159141.4A CN202111159141A CN113958525A CN 113958525 A CN113958525 A CN 113958525A CN 202111159141 A CN202111159141 A CN 202111159141A CN 113958525 A CN113958525 A CN 113958525A
- Authority
- CN
- China
- Prior art keywords
- temperature
- fan
- working
- electronic equipment
- speed
- 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.)
- Granted
Links
Images
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
-
- 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
- F04D27/001—Testing thereof; Determination or simulation of flow characteristics; Stall or surge detection, e.g. condition monitoring
-
- 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
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D10/00—Energy efficient computing, e.g. low power processors, power management or thermal management
Abstract
The noise reduction method for the cooling fan of the electronic equipment can greatly reduce the noise of daily work. The invention is realized by the following technical scheme: firstly, respectively calculating the maximum working stable temperature T of key devices of the electronic equipment1And response temperature T in daily working environment2(ii) a Setting a temperature sensor for acquiring the working temperature T of the key device in real time, sending the direct-current voltage acquired and output by the temperature sensor to an analog-to-digital (AD) conversion chip to be converted into a digital signal, and sending the digital signal to a control processor; the control processor judges whether the working temperature T is in a threshold range, if T is greater than (100+ X)% (T)1+T2) Controlling the processor to output control signals and automatically adjusting the current or voltage output by the fan power supply to enable the fan rotating speed to work in a high-speed state gear, if T < (100-X)% (T)1+T2) And/2, automatically adjusting the rotating speed of the fan according to the control signal to enable the fan to work in a low-speed state.
Description
Technical Field
The invention belongs to the field of thermal control design of electronic equipment. The noise reduction design method for the fan heat dissipation of the electronic equipment adopts a closed-loop control method of monitoring the working temperature in real time and performing self-adaptive adjustment, effectively reduces the noise of the daily work of the electronic equipment, and has a good effect of improving the noise of the working environment of operators.
Background
With the technical development of electronic devices, the integration level of the devices is increasing day by day, and the power consumption and the heat productivity are increasing. In the absence of external cooling resources, the electronic device usually needs to use its own fan to dissipate heat. Some special electronic devices have a great difference in environmental temperature due to the influence of their working environments, such as: avionics, on-board equipment, outdoor work equipment, and the like. When the equipment is subjected to thermal design, fan type selection and heat dissipation design work must be carried out under the most severe high-temperature condition. Under extreme environmental conditions, high temperature conditions can reach up to 70 ℃ or more. Therefore, the electronic device has a very high requirement on the air volume which can be provided by the fan, the selected fan needs to have a corresponding higher rotating speed, which usually reaches 15000 rpm to 20000 rpm, the fan working under the condition usually has higher-intensity noise above 80 decibels, and if the fan always works at the maximum rotating speed, the fan has a bad influence on surrounding operators. It is shown by the relevant data that the main harm of noise to the human body is damage to the auditory system. When the noise intensity exceeds 100 db, the hearing damage can be caused. Mild hearing impairment is mainly manifested as mild tinnitus, which, if further developed, may affect speech and hearing to some extent, resulting in difficulty in hearing in work, study and life. In addition, noise affects other systems of the human body, and is mainly manifested as headache, dizziness, insomnia, dreaminess, hypomnesis, unstable blood pressure or insufficient blood supply to extremities, nutritional disorder diseases, arrhythmia, etc.
The noise of the fan is generated by the flow of the gas, and is related to the speed, the wind pressure and the flow rate of the air flow, and the design of each part forming the fan influences the noise degree. Therefore, the noise of the cooling fan is a headache, which not only affects the product quality, but also brings other troubles in work.
The fan noise refers to strong noise generated in the operation process of the fan and mainly consists of aerodynamic noise and mechanical noise. The noise radiated from the machine body, the surface of the pipeline and the like due to the airflow impact of the fan in and out of the pipeline; electromagnetic noise caused by magnetic field pulsation between the stator and the rotor and mechanical noise generated by high-speed rotation of the bearing cause serious harm to human health.
Because the working environment temperature of the electronic equipment is a parameter which changes in real time, the probability that the equipment meets the conditions of high temperature and extreme conditions in actual work is very low, the actual environment temperature is far lower than the conditions of extreme high temperature in most cases, and the heat dissipation design of the electronic equipment must meet the requirements of the conditions of extreme high temperature. Therefore, how to design an electronic device with a fan for heat dissipation means that the electronic device has the capability of meeting the heat dissipation requirement under the high-temperature condition and greatly reducing the noise of daily work, and has very obvious engineering requirements.
Disclosure of Invention
The invention aims to solve the problems in the prior art and provides a fan noise reduction method for a heat dissipation electronic device, which can meet the heat dissipation requirement under a high-temperature condition, reduce the noise of a heat dissipation fan and greatly reduce the daily work noise.
The present invention achieves the above object: a noise reduction method for a cooling fan of electronic equipment is characterized by comprising the following steps:
firstly, identifying two working states of high temperature of extreme working environment and daily environment temperature of electronic equipment, acquiring required air volume and equipment heating condition under two working environment working conditions, respectively recording fan rotating speed, air volume, noise parameters and temperature data of key components most affected by high temperature, carrying out thermal simulation analysis and calculation on the working environment working conditions, and respectively calculating the highest working stable temperature T of key components of the electronic equipment1And response temperature T in daily working environment2Selecting a speed-adjustable fan with the maximum air quantity required by meeting the heat dissipation requirement;
then satisfies T1＞＞T2Next, the average temperature (T) is calculated1+T2) A threshold value of/2, storing the threshold value and the set threshold width X in the control processor;
arranging a temperature sensor for acquiring the working temperature T of the key device in real time at a position close to the key component in the electronic equipment, acquiring direct-current voltage output by the real-time working temperature T of the key device by the temperature sensor, sending the direct-current voltage to an analog-to-digital (AD) conversion chip to be converted into a digital signal, and sending the digital signal to a control processor;
the control processor determines whether there is an operating temperature T < (100-X)% (T)1+T2) (ii)/2 or T > (100+ X)% (T)1+T2) [ 2 ] if T > (100+ X)% (T)1+T2) Controlling the processor to output control signals and automatically adjusting the current or voltage output by the fan power supply to enable the fan rotating speed to work in a high-speed state gear, if T < (100-X)% (T)1+T2) And/2, automatically adjusting the rotating speed of the fan according to the control signal to enable the fan to work in a low-speed state.
A noise reduction method for a cooling fan of electronic equipment is characterized by comprising the following steps:
firstly, analyzing and identifying the working environment temperature of electronic equipment, comprehensively analyzing fan rotating speed, air quantity and noise parameters, performing heat dissipation calculation analysis on two working states of extreme environment high temperature and daily environment temperature, acquiring required air quantity and equipment heating conditions under two working conditions, respectively recording temperature data, respectively performing thermal simulation analysis calculation on a high-temperature environment and a normal-temperature environment, acquiring equipment heating conditions under two working conditions, respectively recording temperature data of key components which are most affected by high temperature, acquiring the highest working environment temperature and the daily working environment temperature, and selecting a speed-adjustable fan with the maximum air quantity required by heat dissipation requirements;
then, according to the acquired environment condition of the highest temperature, the highest working stable temperature T of the key components of the electronic equipment is calculated1Calculating the response temperature T of the fan of the electronic equipment under the daily working environment according to the acquired daily working environment temperature2At the time of satisfying T1＞＞ T2Next, the threshold average temperature (T) is calculated1+T2) 2, average temperature (T)1+T2) 2 is stored in the control processor as a threshold value; the method comprises the steps of arranging a temperature sensor for acquiring the working temperature T of a key component close to the inside of the electronic equipment in real time at the position of the key component, and acquiring the key of the temperature sensorThe real-time working temperature T of the device and the output direct-current voltage of the electronic equipment are sent to an analog-to-digital (AD) conversion chip to be converted into digital signals, and then the digital signals are sent to a control processor
Setting a threshold width X, and controlling the processor to judge whether the working temperature T has T<(100-X)％×(T1+T2) /2 or T>(100+X)％×(T1+T2) If T is 2>(100+X)％×(T1+T2) The control processor outputs a control signal and adjusts the current or voltage output by the fan power supply so as to enable the fan rotating speed to work in a high-speed state gear; if T<(100-X)％×(T1+T2) When the speed is/2, adjusting the control signal of the rotating speed of the fan to enable the fan to work in a low-speed state
Compared with the prior art, the invention has the following beneficial effects:
the method comprises the steps of analyzing and identifying the working environment temperature of the electronic equipment, comprehensively analyzing the rotating speed, the air quantity and the noise parameters of the fan, performing heat dissipation calculation analysis on two working states of the extreme environment high temperature and the daily environment temperature to obtain the required air quantity and the equipment heating condition under two working conditions, performing thermal simulation analysis calculation on the high temperature environment and the normal temperature environment respectively to obtain the equipment heating condition under two working conditions, and selecting the speed-adjustable fan with the maximum air quantity required by the heat dissipation requirement according to the obtained highest working environment temperature and the daily working environment temperature; the method provides a foundation for treating the overproof noise, and obtains a high-gear rotating speed meeting the high-temperature heat dissipation requirement, a low-gear rotating speed meeting the normal-temperature heat dissipation and noise requirements and electrical signal requirements controlled by the two gears. The noise can reach the emission standard below the regulated noise limit value of the 3-class mixed region (GB 3096-2008) after being treated.
According to the acquired environment condition of the highest temperature, the invention calculates the highest working stable temperature T of the key components of the electronic equipment1Calculating the response temperature T of the fan of the electronic equipment under the daily working environment according to the acquired daily working environment temperature2At the time of satisfying T1＞＞T2Next, the threshold average temperature (T) is calculated1+T2) 2 is stored in the control processor as a threshold value; according to electronsThe actual working state of the equipment is set with the threshold width X, so that the condition that the working temperature T of the key component is acquired is avoided1+T2) And when the temperature is close to/2, the fan is frequently switched to the working state.
The invention adopts a closed-loop control method to judge whether the working temperature T of the key component has T<(100-X)％× (T1+T2) /2 or T>(100+X)％×(T1+T2)/2. If T>(100+X)％×(T1+T2) The control processor outputs a control signal and adjusts the current or voltage output by the fan power supply so as to enable the fan rotating speed to work in a high-speed state gear; if T<(100-X)％×(T1+T2) And when the speed is more than 2, adjusting the rotating speed control signal of the fan to enable the fan to work in a low-speed state. Under normal temperature environment, can make fan work in low rotational speed gear, effective lower operating noise. Under the high temperature environment, can make fan work in high rotational speed gear, satisfy the equipment heat dissipation demand. Because the extreme high temperature condition of the working environment of the equipment is a possible condition in a very short time, the design method can reduce the working noise of the equipment in most time periods and improve the working environment of personnel.
Drawings
FIG. 1 is a noise reduction flow diagram of a cooling fan of an electronic device according to the present invention;
fig. 2 is a noise reduction control schematic diagram of the control processor of fig. 1.
In order to make the object and technical solution of the present invention more clear, the present invention is further described in detail with reference to the following schematic drawings, it should be understood that the specific embodiments described herein are only for explaining the present invention and are not to be construed as limiting the present invention. Any feature disclosed in this specification, including any accompanying claims, abstract and drawings, may be replaced by alternative features serving equivalent or similar purposes, unless expressly stated otherwise.
Detailed Description
Referring to fig. 1, according to the present invention, first, two working states of an electronic device, i.e., a high temperature in an extreme working environment and a temperature in a daily environment, are identified, and a required air volume and a device heating condition under two working environment conditions are obtainedRespectively recording fan rotation speed, air quantity, noise parameters and temperature data of key components most affected by high temperature, performing thermal simulation analysis and calculation on the working environment working conditions, and respectively calculating the maximum working stable temperature T of the key components of the electronic equipment1And response temperature T in daily working environment2Selecting a speed-adjustable fan with the maximum air quantity required by meeting the heat dissipation requirement;
then satisfies T1＞＞T2Next, the average temperature (T) is calculated1+T2) A threshold value of/2, storing the threshold value and the set threshold width X in the control processor;
arranging a temperature sensor for acquiring the working temperature T of the key device in real time at a position close to the key component in the electronic equipment, acquiring direct-current voltage output by the real-time working temperature T of the key device by the temperature sensor, sending the direct-current voltage to an analog-to-digital (AD) conversion chip to be converted into a digital signal, and sending the digital signal to a control processor;
the control processor determines whether there is an operating temperature T < (100-X)% (T)1+T2) (ii)/2 or T > (100+ X)% (T)1+T2) [ 2 ] if T > (100+ X)% (T)1+T2) Controlling the processor to output control signals and automatically adjusting the current or voltage output by the fan power supply to enable the fan rotating speed to work in a high-speed state gear, if T < (100-X)% (T)1+T2) And/2, automatically adjusting the rotating speed of the fan according to the control signal to enable the fan to work in a low-speed state.
In an optional embodiment, the maximum temperature of a working environment of some electronic device is analyzed and identified to be 70 ℃, the temperature of a daily working environment is 30 ℃, the air quantity required by heat dissipation of the electronic device is calculated to be 50CFM according to the condition of 70 ℃, the corresponding specification of the speed-adjustable fan is selected according to the air quantity, and the maximum air quantity is 70CFM, and the maximum air quantity can be obtained by performing analysis and calculation: under the environment of high temperature of 70 ℃, the air quantity of the fan is 50CFM, and the working stable temperature of key components is T1The temperature is 100 ℃, the air volume of a fan is 30CFM under the environment of normal temperature of 30 ℃, and the working stable temperature of a key component is T2＝70℃。
See fig. 2. The control processor includes: is connected to a power supplyVCCTemperature sensor with grounded parallel capacitor and connected to power supply VCCAnd the analog-to-digital converter ADC is connected between the power supply VCC and the grounding GND capacitor and is connected with the grounding GND in sequence, and the CPU processor and the voltage-adjustable direct-current power supply are connected with the ADC in series. Under the condition of normal temperature environment, the temperature sensor collects the temperature T of the specified key component and outputs direct current voltage VTEMPThe digital signal is converted into a digital signal by an AD conversion chip and sent to a CPU processor, and the CPU processor stores the average temperature (T) according to the average temperature1+T2) (v 2) calculating the average temperature (T)1+T2) The/2 threshold is 85 ℃, and the threshold width X is set to be 10.
When the CPU processor identifies that the temperature T < (100-X)% (T) of the key component sent by the sensor1+T2) 2, i.e. T<At 76.5 deg.c, the CPU outputs CONTROL signal CONTROL to CONTROL the DC power supply to output the working voltage V of the air blowerDC1The FAN (FAN) is enabled to work in an air supply mode of low-rotation-speed work, at the moment, the FAN (FAN) provides 30CFM air volume to meet the heat dissipation requirement, and the working noise is in a low state; when the environmental temperature continuously rises, the temperature of the key components also rises synchronously until T>(100+X)％×(T1+T2) 2 is T>At 93.5 deg.C, the CPU processor adjusts the output voltage V of the voltage-adjustable DC power supplyDC2And enabling a FAN (FAN) to work in an air supply mode of high-rotation-speed work, and enabling equipment to obtain 50CFM air volume to meet the heat dissipation requirement. Under the action of 50CFM large wind volume or the condition that the environmental temperature is obviously reduced again until the temperature T of the key components is less than (100-X)% × (T)1+T2) And 2, the fan returns to the low-rotation-speed working state again.
Claims (7)
1. A noise reduction method for a cooling fan of electronic equipment is characterized by comprising the following steps:
firstly, identifying two working states of extreme working environment high temperature and daily environment temperature of electronic equipment, acquiring required air volume and equipment heating condition under two working environment working conditions, and respectively recording fan rotating speed, air volume, noise parameters and temperature data of key components most affected by high temperaturePerforming thermal simulation analysis and calculation on the working environment working conditions, and respectively calculating the highest working stable temperature T of the key devices of the electronic equipment1And response temperature T in daily working environment2Selecting a speed-adjustable fan with the maximum air quantity required by meeting the heat dissipation requirement;
then satisfies T1＞＞T2Next, the average temperature (T) is calculated1+T2) A threshold value of/2, storing the threshold value and the set threshold width X in the control processor;
arranging a temperature sensor for acquiring the working temperature T of the key device in real time at a position close to the key component in the electronic equipment, acquiring direct-current voltage output by the real-time working temperature T of the key device by the temperature sensor, sending the direct-current voltage to an analog-to-digital (AD) conversion chip to be converted into a digital signal, and sending the digital signal to a control processor;
the control processor determines whether there is an operating temperature T < (100-X)% (T)1+T2) (ii)/2 or T > (100+ X)% (T)1+T2) [ 2 ] if T > (100+ X)% (T)1+T2) Controlling the processor to output control signals and automatically adjusting the current or voltage output by the fan power supply to enable the fan rotating speed to work in a high-speed state gear, if T < (100-X)% (T)1+T2) And/2, automatically adjusting the rotating speed of the fan according to the control signal to enable the fan to work in a low-speed state.
2. The noise reduction method for the cooling fan of the electronic device according to claim 1, characterized in that: analyzing and recognizing that the highest temperature of a working environment of certain electronic equipment is 70 ℃, the temperature of a daily working environment is 30 ℃, calculating the air quantity required by heat dissipation of the electronic equipment to be 50CFM according to the condition of 70 ℃, selecting the corresponding specification of the speed-adjustable fan and the maximum air quantity to be 70CFM according to the air quantity, and analyzing and calculating to obtain the air quantity: under the environment of high temperature of 70 ℃, the air quantity of the fan is 50CFM, and the working stable temperature of key components is T1The temperature is 100 ℃, the air volume of a fan is 30CFM under the environment of normal temperature of 30 ℃, and the working stable temperature of a key component is T2＝70℃。
3. As in claimThe noise reduction method for the cooling fan of the electronic equipment, according to claim 1, is characterized in that: the control processor includes: is connected to a power supply VCCTemperature sensor with grounded parallel capacitor and connected to power supply VCCAnd the analog-to-digital converter ADC is connected between the power supply VCC and the grounding GND capacitor and is connected with the grounding GND in sequence, and the CPU processor and the voltage-adjustable direct-current power supply are connected with the ADC in series.
4. The noise reduction method for the cooling fan of the electronic device according to claim 3, characterized in that: under the condition of normal temperature environment, the temperature sensor collects the temperature T of the specified key component and outputs direct current voltage VTEMPThe digital signal is converted into a digital signal by an AD conversion chip and sent to a CPU processor, and the CPU processor stores the average temperature (T) according to the average temperature1+T2) (v 2) calculating the average temperature (T)1+T2) The/2 threshold is 85 ℃, and the threshold width X is set to be 10.
5. The noise reduction method for the cooling fan of the electronic device according to claim 4, characterized in that: when the CPU processor identifies that the temperature T < (100-X)% (T) of the key component sent by the sensor1+T2) 2, namely T is less than 76.5 ℃, the CPU processor outputs a CONTROL signal CONTROL to CONTROL the adjustable voltage DC power supply to output the working voltage V of the fanDC1The FAN (FAN) is enabled to work in an air supply mode of low-rotation-speed work, at the moment, the FAN (FAN) provides 30CFM air volume to meet the heat dissipation requirement, and the working noise is in a low state.
6. The noise reduction method for the cooling fan of the electronic device according to claim 5, characterized in that: when the environmental temperature continuously rises, the temperature of the key components rises synchronously until T > (100+ X)% (T)1+T2) 2, when T is more than 93.5 ℃, the CPU processor adjusts the output voltage V of the voltage-adjustable DC power supplyDC2And enabling a FAN (FAN) to work in an air supply mode of high-rotation-speed work, and enabling equipment to obtain 50CFM air volume to meet the heat dissipation requirement.
7. As claimed in claim 5The noise reduction method of the cooling fan of the electronic equipment is characterized by comprising the following steps: under the action of 50CFM large wind volume or the condition that the environmental temperature is obviously reduced again until the temperature T of the key components is less than (100-X)% × (T)1+T2) And 2, the fan returns to the low-rotation-speed working state again.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159141.4A CN113958525B (en) | 2021-09-30 | 2021-09-30 | Noise reduction method for heat dissipation fan of electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202111159141.4A CN113958525B (en) | 2021-09-30 | 2021-09-30 | Noise reduction method for heat dissipation fan of electronic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113958525A true CN113958525A (en) | 2022-01-21 |
| CN113958525B CN113958525B (en) | 2023-06-23 |
Family
ID=79462764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202111159141.4A Active CN113958525B (en) | 2021-09-30 | 2021-09-30 | Noise reduction method for heat dissipation fan of electronic equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113958525B (en) |
Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581019A (en) * | 2003-08-06 | 2005-02-16 | 建碁股份有限公司 | Cooling system for computer device |
| CN101451539A (en) * | 2007-12-04 | 2009-06-10 | 汤姆森许可贸易公司 | Method for controlling the speed of a fan using a measurement of the ambient noise and electronic device implementing the method |
| US20110041532A1 (en) * | 2009-08-18 | 2011-02-24 | Preston Philip K | Low-Noise Fan Control for Refrigeration Cycle |
| US20110224837A1 (en) * | 2010-03-10 | 2011-09-15 | Dell Products L.P. | System and Method for Controlling Temperature in an Information Handling System |
| US20170104438A1 (en) * | 2015-10-08 | 2017-04-13 | Nuvoton Technology Corporation | Control method of over-temperature protection, driver chip and control system of over-temperature protection |
| CN108005940A (en) * | 2017-12-25 | 2018-05-08 | 青岛诚广丰自动化工程有限公司 | Robot fan power-economizing method and device |
| CN108825543A (en) * | 2018-05-24 | 2018-11-16 | 郑州云海信息技术有限公司 | A kind of server fan regulation method and system |
| CN109098999A (en) * | 2018-07-28 | 2018-12-28 | 中国船舶重工集团公司第七六研究所 | A kind of electronic equipment rotation speed of fan control method and control device |
| CN110332140A (en) * | 2019-08-01 | 2019-10-15 | 联想(北京)有限公司 | The control method for fan and electronic equipment of a kind of electronic equipment |
| CN110654296A (en) * | 2019-09-29 | 2020-01-07 | 黄诚文 | High temperature alarm device for commodity circulation |
-
2021
- 2021-09-30 CN CN202111159141.4A patent/CN113958525B/en active Active
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1581019A (en) * | 2003-08-06 | 2005-02-16 | 建碁股份有限公司 | Cooling system for computer device |
| CN101451539A (en) * | 2007-12-04 | 2009-06-10 | 汤姆森许可贸易公司 | Method for controlling the speed of a fan using a measurement of the ambient noise and electronic device implementing the method |
| US20110041532A1 (en) * | 2009-08-18 | 2011-02-24 | Preston Philip K | Low-Noise Fan Control for Refrigeration Cycle |
| US20110224837A1 (en) * | 2010-03-10 | 2011-09-15 | Dell Products L.P. | System and Method for Controlling Temperature in an Information Handling System |
| US20170104438A1 (en) * | 2015-10-08 | 2017-04-13 | Nuvoton Technology Corporation | Control method of over-temperature protection, driver chip and control system of over-temperature protection |
| CN108005940A (en) * | 2017-12-25 | 2018-05-08 | 青岛诚广丰自动化工程有限公司 | Robot fan power-economizing method and device |
| CN108825543A (en) * | 2018-05-24 | 2018-11-16 | 郑州云海信息技术有限公司 | A kind of server fan regulation method and system |
| CN109098999A (en) * | 2018-07-28 | 2018-12-28 | 中国船舶重工集团公司第七六研究所 | A kind of electronic equipment rotation speed of fan control method and control device |
| CN110332140A (en) * | 2019-08-01 | 2019-10-15 | 联想(北京)有限公司 | The control method for fan and electronic equipment of a kind of electronic equipment |
| CN110654296A (en) * | 2019-09-29 | 2020-01-07 | 黄诚文 | High temperature alarm device for commodity circulation |
Non-Patent Citations (1)
| Title |
|---|
| 李亮;: "风电场动态无功补偿装置(SVG)散热风机节能降噪系统优化" * |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113958525B (en) | 2023-06-23 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP3458711B1 (en) | Controlling wind turbine noise | |
| EP2565442A1 (en) | System and method for operating a wind turbine using adaptive reference variables | |
| CN105066336A (en) | Temperature adjusting system and method for indoor air conditioner | |
| CN104566769A (en) | Air conditioner energy saving control method and system | |
| CN110100091A (en) | Noise reduction dependent on wind turbine temperature | |
| CN107781203A (en) | With the frequency converter for automatically adjusting rate of heat dispation function | |
| CN102062460B (en) | Accurate air supply system of air conditioning unit and realizing method thereof | |
| CN108536259A (en) | A kind of fan intelligent control method and system applied to server | |
| CN107514382A (en) | It is a kind of to adjust machine frame air channel to reduce the apparatus and method of system power dissipation | |
| CN108170180B (en) | Intelligent real-time dynamic cooling system and method for display device | |
| CN208140777U (en) | Hall current sensor | |
| CN113958525A (en) | Noise reduction method for cooling fan of electronic equipment | |
| CN205847438U (en) | A kind of monitor supervision platform intelligent heat dissipation system | |
| CN116465059A (en) | Energy-saving air conditioner operation supervision system based on data analysis | |
| CN204244631U (en) | A kind of heat abstractor and cooling system | |
| CN206042646U (en) | Power amplifier machine case is adjusted in heat dissipation | |
| CN116301252A (en) | Server heat dissipation method, device, equipment and storage medium | |
| CN114754476A (en) | Air conditioner breathing control device and method and air conditioner system | |
| CN209800336U (en) | Dynamic fan speed regulating device for forced air cooling communication system | |
| CN114590278A (en) | Device and method for monitoring vibration temperature rise of ventilation cooling system, terminal and electric locomotive | |
| CN114204559A (en) | Solar energy and wind energy dual-energy power generation control system | |
| CN114412818A (en) | Wide-range adjusting device of ultra-high-speed cooling fan | |
| CN209889141U (en) | Constant-temperature automatic control system for unmanned aerial vehicle airport | |
| CN111399608A (en) | Terminal temperature control device, method, terminal and readable storage medium | |
| WO2019113855A1 (en) | Smart real-time dynamic cooling system and method for display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |