CN113900503A - Computer case temperature control system - Google Patents
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- CN113900503A CN113900503A CN202111199360.5A CN202111199360A CN113900503A CN 113900503 A CN113900503 A CN 113900503A CN 202111199360 A CN202111199360 A CN 202111199360A CN 113900503 A CN113900503 A CN 113900503A
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 72
- 238000012544 monitoring process Methods 0.000 claims abstract description 9
- 230000002093 peripheral effect Effects 0.000 claims description 21
- 238000004891 communication Methods 0.000 claims description 16
- 238000001816 cooling Methods 0.000 claims description 12
- 239000004973 liquid crystal related substance Substances 0.000 claims description 6
- 238000005259 measurement Methods 0.000 claims description 5
- 230000003287 optical effect Effects 0.000 claims description 3
- 238000012795 verification Methods 0.000 claims description 3
- 230000017525 heat dissipation Effects 0.000 abstract description 9
- 230000000694 effects Effects 0.000 abstract description 3
- 238000003745 diagnosis Methods 0.000 description 20
- 238000012937 correction Methods 0.000 description 14
- 230000008859 change Effects 0.000 description 11
- 238000000034 method Methods 0.000 description 11
- 230000007613 environmental effect Effects 0.000 description 8
- 230000008569 process Effects 0.000 description 8
- 238000012545 processing Methods 0.000 description 5
- 230000004044 response Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000000110 cooling liquid Substances 0.000 description 2
- 230000006870 function Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
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- 206010043431 Thinking abnormal Diseases 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
- G06F1/16—Constructional details or arrangements
- G06F1/20—Cooling means
- G06F1/206—Cooling means comprising thermal management
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/3058—Monitoring arrangements for monitoring environmental properties or parameters of the computing system or of the computing system component, e.g. monitoring of power, currents, temperature, humidity, position, vibrations
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/325—Display of status information by lamps or LED's
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F11/00—Error detection; Error correction; Monitoring
- G06F11/30—Monitoring
- G06F11/32—Monitoring with visual or acoustical indication of the functioning of the machine
- G06F11/324—Display of status information
- G06F11/327—Alarm or error message display
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Abstract
The embodiment of the invention discloses a computer case temperature control system which can be used for acquiring temperature and rotating speed information and monitoring faults of a plurality of paths of temperature sensors, fans and water pumps, carrying out fault reminding and storage after the faults occur, controlling the fans and the water pumps to work according to a fault mode, and adjusting the rotating speeds of the fans and the water pumps so as to achieve the optimal heat dissipation effect.
Description
Technical Field
The embodiment of the invention relates to the technical field of computer case heat dissipation, in particular to a computer case temperature control system.
Background
At present, the commonly used heat dissipation methods of the computer case mainly include the following:
(1) in a traditional heat dissipation mode, a heat dissipation fan is supplied with power to run at full load;
(2) the simple analog circuit is used, and the current or the voltage is adjusted according to the change of the resistance value of the thermistor so as to achieve the purpose of controlling the rotating speed of the fan.
(3) The rotating speed control function of the fan on the computer mainboard is used. But typically only provides a CPU fan speed control pin.
Disclosure of Invention
Therefore, the embodiment of the invention provides a computer case temperature control device to solve the problems of single control logic, unreasonable rotating speed setting, poor heat dissipation effect, incapability of realizing fault information detection and the like in the existing computer case heat dissipation mode.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions: the utility model provides a computer machine case temperature control system, the system includes multichannel temperature sensor, multichannel fan, water-cooling circulating water pump, temperature sensor peripheral circuit, rotational speed measurement peripheral circuit, PWM output circuit and master control MCU, the multichannel temperature sensor is connected to master control MCU through temperature sensor peripheral circuit, the rotational speed is measured peripheral circuit and is connected master control MCU, master control MCU passes through PWM output circuit and connects fan and water pump, multichannel temperature sensor is used for gathering CPU water inlet temperature, CPU delivery port temperature, GPU temperature, main chip temperature, memory temperature, hard disk temperature, quick-witted incasement portion temperature and ambient temperature information of computer machine case respectively, temperature sensor peripheral circuit is used for converting thermistor value into voltage signal and inputs to master control MCU, the multichannel the fan includes water-cooling radiator fan, quick-witted case exhaust fan, The main chip fan, the memory fan and the hard disk fan, the rotating speed measurement peripheral circuit is used for converting rotating speed signals of the fan and the water pump into signals which can be processed by the main control MCU through the optical coupler, the main control MCU is used for monitoring fault states of the temperature sensors and calculating temperature values according to the acquired voltage signals, monitoring fault states of the fan and the water pump according to the acquired rotating speed information, adjusting and controlling the rotating speeds of the fan and the water pump according to the acquired temperature information, the fault states of the temperature sensors and the fault state information of the fan and the water pump, and outputting PMW control signals, and the PWM output circuit is used for outputting the PMW signals of the main control MCU to the fan and the water pump.
Furthermore, the system also comprises a fault state indicating module, wherein the fault state indicating module is connected with the main control MCU through a switch circuit, and the fault state indicating module comprises an LED state indicating lamp and a buzzer.
Furthermore, the system also comprises a CAN communication module connected with the master control MCU, wherein the CAN communication module is used for externally connecting CAN communication equipment to read and collect data.
Furthermore, the system also comprises a power supply module connected with the main control MCU.
Furthermore, the system also comprises a liquid crystal display module, wherein the liquid crystal display module is communicated with the master control MCU through an SPI protocol and is used for displaying temperature, rotating speed and fault state information.
Furthermore, the system also comprises a serial port communication module connected with the main control MCU, and the serial port communication module is used for sending temperature, rotating speed and fault state data information and upgrading software.
Furthermore, the system also comprises an EEPROM (electrically erasable programmable read-Only memory), wherein the EEPROM is communicated with the main control MCU through the IIC protocol and is used for storing and reading fault information and anti-theft verification codes.
Further, the model of the master MCU is STM32F103VCT 6.
The embodiment of the invention has the following advantages:
the computer case temperature control system provided by the embodiment of the invention can be used for acquiring temperature and rotating speed information and monitoring faults of a plurality of paths of temperature sensors, fans and water pumps, carrying out fault reminding and storage after the faults occur, controlling the fans and the water pumps to work according to a fault mode, and adjusting the rotating speeds of the fans and the water pumps so as to achieve the optimal heat dissipation effect.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.
Fig. 1 is a schematic structural diagram of a computer case temperature control system according to embodiment 1 of the present invention;
fig. 2 is a schematic diagram illustrating an arrangement of a cooling fan, a water pump and a temperature sensor of a CPU and a GPU (graphics processing unit) in the computer case temperature control system according to embodiment 1 of the present invention;
FIG. 3 is a flow chart illustrating a cooling fan control logic in a computer case temperature control system according to embodiment 1 of the present invention;
fig. 4 is a schematic diagram illustrating a voltage diagnosis process of a temperature sensor in a temperature control system of a computer case according to embodiment 1 of the present invention;
fig. 5 is a schematic flow chart illustrating a rationality diagnosis process of a temperature sensor in a temperature control system of a computer case according to embodiment 1 of the present invention;
fig. 6 is a schematic flow chart illustrating a flow of a fan speed request in a failure mode of a temperature sensor in a temperature control system of a computer case according to embodiment 1 of the present invention;
fig. 7 is a schematic flow chart illustrating a flow of a fan speed request in a fan failure mode in a computer case temperature control system according to embodiment 1 of the present invention;
fig. 8 is a schematic flow chart illustrating a process of correcting a rotation speed request temperature in a fan failure mode in a computer case temperature control system according to embodiment 1 of the present invention;
fig. 9 is a schematic flow chart illustrating a fan signal diagnosis process in a computer case temperature control system according to embodiment 1 of the present invention;
fig. 10 is a schematic flow chart illustrating a process of diagnosing the rationality of the fan rotation speed in the temperature control system of the computer case according to embodiment 1 of the present invention;
fig. 11 is a schematic view of a flow chart illustrating a process of diagnosing an unreasonable dynamic response of a fan in a temperature control system of a computer case according to embodiment 1 of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
As shown in fig. 1, the present embodiment provides a computer case temperature control system, which includes a plurality of temperature sensors, a plurality of fans, a water-cooling circulating water pump, a temperature sensor peripheral circuit, a rotation speed measurement peripheral circuit, a PWM output circuit, and a main control MCU. The multi-channel temperature sensor is connected to the main control MCU through a temperature sensor peripheral circuit, the rotating speed measuring peripheral circuit is connected with the main control MCU, and the main control MCU is connected with the fan and the water pump through a PWM output circuit.
The multi-channel temperature sensor is respectively used for collecting the CPU water inlet temperature, the CPU water outlet temperature, the GPU temperature, the main chip temperature, the memory temperature, the hard disk temperature, the case internal temperature and the environment temperature information of the computer case, and the temperature sensor peripheral circuit is used for converting the thermistor value into a voltage signal and inputting the voltage signal to the main control MCU. In this embodiment, NTC thermistor type temperature sensors are used for acquiring CPU water inlet temperature, CPU water outlet temperature, GPU temperature, main chip temperature, memory temperature, hard disk temperature, case internal temperature, and environmental temperature information. The embodiment is also provided with a DS18B20 type digital temperature sensor for acquiring the temperature information of the system circuit board and encrypting the software by combining the unique serial number of the DS18B20 and the MCU serial number.
The multi-path fan comprises a water-cooling radiator fan, a chassis exhaust fan, a main chip fan, a memory fan and a hard disk fan, and the rotating speed measuring peripheral circuit is used for converting rotating speed signals of the fan and the water pump into signals which can be processed by the main control MCU through the optical coupler.
The main control MCU is used for monitoring the fault state of each temperature sensor and calculating the temperature value according to the acquired voltage signal, monitoring the fault state of the fan and the water pump according to the acquired rotating speed information, adjusting and controlling the rotating speed of the fan and the water pump according to the acquired temperature information, the fault state of each temperature sensor and the fault state information of each fan and the water pump, and outputting a PMW control signal, and the PWM output circuit is used for outputting the PMW signal of the main control MCU to the fan and the water pump. In this embodiment, the model of the master MCU is STM32F103VCT 6.
In this embodiment, the rotational speed request (%) corresponding to the fan and the water pump is calculated according to the temperature of each sensor, the fault state of the temperature sensor, and the fault state of the fan and the water pump, and finally the PMW signal is output. The control function mainly comprises 3 paths of water-cooling radiator fan rotation speed control, 2 paths of case exhaust fan rotation speed control, 1 path of main chip fan rotation speed control, 1 path of memory fan rotation speed control, 1 path of hard disk fan rotation speed control and 1 path of water pump rotation speed control.
The main structure of each module is not very different, and the temperature control of a CPU and a GPU (graphics processing unit) is taken as an example for explanation. The CPU and the GPU (graphics processing unit) adopt a circulating water-cooling heat dissipation mode, the arrangement of a fan, a water pump and a related temperature sensor is shown in figure 2, and the circulation of cooling liquid among different parts is realized through the water-cooling circulating water pump. The cooling fan control logic flow, as shown in fig. 3, specifically:
voltage analog signals representing temperatures of a thermistor type CPU water inlet temperature sensor, a CPU water outlet temperature sensor and a GPU temperature sensor are converted into voltage digital signals through AD, then voltage diagnosis is carried out (whether fault problems of short circuit and poor contact occur or not is judged), voltage values are calculated and converted into temperatures, and temperature rationality diagnosis is carried out. Based on the diagnosis result, according to the temperatures obtained by the three sensors, taking the maximum value of the temperatures of the CPU water inlet, the CPU water outlet and the GPU water outlet, looking up a table with the ambient temperature to obtain an initial value of the fan rotating speed (%), looking up the difference value of the temperatures of the GPU water outlet and the CPU water inlet to obtain a fan rotating speed correction coefficient, and finally obtaining the fan rotating speed (%) (a plurality of temperature-rotating speed comparison tables (one-dimensional tables or two-dimensional tables) are pre-configured in system software, the temperature looking up table can be carried out according to one temperature (one-dimensional tables) or two temperature values (two-dimensional tables) to obtain the corresponding fan rotating speed required value, the temperature value can be looked up in the tables through linear interpolation calculation processing, and the specific numerical value in the tables can be set according to the reality);
and determining whether to limit the change rate of the fan rotating speed request according to the variable quantity of the rotating speed of the water pump, calculating the target temperature of the cooling liquid according to the ambient temperature, performing PID (proportion integration differentiation) closed-loop control on the rotating speed of the fan when closed-loop conditions are met, and obtaining the rotating speed of the fan based on the conditions. And combining fan rotating speed requests under the temperature sensor fault failure mode and the fan fault failure mode, then performing fan rotating speed (%) change slope smoothing processing, and combining fan rotating speed range limitation to obtain the fan rotating speed, wherein the main control MCU converts the fan rotating speed requests into PMW output signals.
As shown in fig. 4, the voltage diagnosis of the temperature sensor mainly includes voltage range diagnosis and contact failure diagnosis: judging whether the voltage value exceeds an upper limit and a lower limit, if so, timing a fault state, and if so, reporting a voltage range fault; and carrying out high-pass filtering on the voltage value, calculating whether the voltage change gradient exceeds a limit value, timing when the voltage change gradient exceeds the limit value, and reporting a fault of poor contact when the timing exceeds the limit value.
The temperature rationality diagnosis of the temperature sensor is shown in fig. 5, and mainly includes a temperature out-of-range fault and a temperature rise unreasonable fault: judging whether the temperature value exceeds an upper limit and a lower limit, if so, timing a fault state, and if so, reporting a temperature range fault; recording the temperature during starting and the highest temperature during the process, timing by using a timer, calculating the difference value between the highest temperature during the process of the temperature sensor and the temperature during starting when the temperature of other temperature sensors changes obviously and the timer reaches the defined time, and reporting an unreasonable temperature rise fault if the difference value does not exceed the limit value.
A temperature sensor failure mode fan speed request defined as: and the fan rotating speed request is set when the water inlet temperature of the CPU, the water outlet temperature of the GPU, the internal temperature of the case and the environmental temperature are failed. The control logic is shown in fig. 6. The method specifically comprises the following steps: counting the number of sensors with faults according to the CPU water inlet temperature, the CPU water outlet temperature, the GPU water outlet temperature, the internal temperature of the case and the environmental temperature, outputting a minimum rotating speed request if no faults exist, outputting a rotating speed request according to set parameters if any faults exist, then outputting a rotating speed request according to the GPU water outlet temperature sensor if each sensor has no faults, looking up the table according to the GPU water outlet temperature to output a rotating speed request if the CPU water outlet temperature sensor has no faults, looking up the table according to the CPU water outlet temperature to output a rotating speed request if the CPU water inlet temperature sensor has no faults, looking up the table according to the CPU water inlet temperature to output a rotating speed request if the temperature sensor in the case has no faults, and looking up the table according to the environmental temperature to output a rotating speed request if the environmental temperature sensor has no faults.
The fan speed request for the fan failure mode is defined as: as shown in fig. 7, the control logic of the fan rotational speed requests set when a fault occurs in the water-cooled radiator fan 1, the water-cooled radiator fan 2, and the water-cooled radiator fan 3 is: firstly, carrying out fan diagnosis, counting the number of fans with faults, and outputting a minimum rotating speed request if no fault exists; if faults (1, 2 or 3 faults) exist, temperature correction is carried out to obtain a correction coefficient, a rotating speed request is output according to set parameters, and the basic rotating speed value is multiplied by the correction coefficient to output the rotating speed request.
The temperature correction is defined as different CPU water inlets, water outlets, GPU water outlets, the inside of the case and the ambient temperature, and the fan speed request is corrected according to the correction coefficient, as shown in fig. 8, the control logic is: counting the number of faulty sensors according to the CPU water inlet temperature, the water outlet temperature, the GPU water outlet temperature, the internal temperature of the case and the environmental temperature, if all the faulty sensors are faulty, outputting a correction coefficient of 1.0, if not all the faulty sensors are faulty, checking the table according to the GPU water outlet temperature if each sensor is faulty, outputting the correction coefficient according to the GPU water outlet temperature if the GPU water outlet temperature sensor is not faulty, outputting the correction coefficient according to the CPU water outlet temperature if the CPU water outlet temperature sensor is not faulty, outputting the correction coefficient according to the CPU water inlet temperature if the CPU water inlet temperature sensor is not faulty, outputting the correction coefficient according to the temperature checking table in the case if the temperature sensor in the case is not faulty, outputting the correction coefficient according to the environmental temperature checking the table if the environmental temperature sensor is not faulty (a temperature-correction coefficient comparison table is configured in advance in system software, the corresponding correction coefficient value can be obtained according to a temperature look-up table).
The fan diagnosis mainly comprises signal diagnosis and rationality diagnosis, and the signal diagnosis logic is as follows: as shown in fig. 9, after the task allocation is first waited to obtain the allocation task, it is determined whether the current rotational speed request meets the minimum requirement for diagnosis, if so, the number of pulse signals acquired within the defined time is counted, and if the number of pulse signals is less than a set value, a fan signal fault is reported. The rationality diagnosis in the fan diagnosis comprises two diagnosis methods of unreasonable actual rotating speed signals and unreasonable dynamic response, and the unreasonable actual rotating speed signals are diagnosed according to the following logics: as shown in fig. 10, after the task allocation is waited to obtain the allocation task, it is determined whether the current rotational speed request meets the minimum requirement for diagnosis, if yes, the theoretical rotational speed is calculated through the fan characteristic according to the rotational speed request, if the difference between the theoretical rotational speed and the actual rotational speed is higher than the limit value, the fault state timing is triggered, and if the timing reaches the set time, the unreasonable fault of the actual rotational speed is reported. The dynamic response irrational diagnostic logic is as follows: as shown in fig. 11, after a task is first allocated, and an allocation task is obtained, it is determined whether the change rate of the rotational speed request exceeds a limit value, if the change rate exceeds the limit value, the actual rotational speed and the theoretical rotational speed at the moment are recorded, it is determined whether the change rate of the rotational speed request is lower than the limit value, if the change rate of the rotational speed request is lower than the limit value, the actual rotational speed and the theoretical rotational speed at the moment are recorded, and according to the actual rotational speed and the theoretical rotational speed recorded twice, a ratio of an actual rotational speed change gradient to a theoretical rotational speed change gradient is calculated, and if the ratio of the gradient is lower than a set value, a slow dynamic response fault is reported.
Furthermore, the system also comprises a fault state indicating module, wherein the fault state indicating module is connected with the main control MCU through a switch circuit and comprises an LED state indicating lamp and a buzzer.
Furthermore, the system also comprises a CAN communication module connected with the master control MCU, and the CAN communication module is used for reading and collecting data by external CAN communication equipment. The CAN communication adopts TJA1050 chip and peripheral circuit, 120 ohm terminal resistance.
Furthermore, the system also comprises a power supply module connected with the main control MCU. The power supply circuit converts a 12V input voltage into 5V and 3.3V voltages by using RT7272, AMS1117 and peripheral circuits.
Furthermore, the system also comprises a liquid crystal display module, wherein the liquid crystal display module is communicated with the master control MCU through an SPI protocol and is used for displaying temperature, rotating speed and fault state information. Display devices currently use 1.3 "7 pin OLED display modules.
Furthermore, the system also comprises a serial port communication module connected with the main control MCU. The serial communication adopts a CH340G chip, a peripheral drive circuit and a MicroUSB interface, can send information such as temperature, rotating speed, fault information, software version number, chip ID and the like according to instructions, and can upgrade software through a USB data line.
Furthermore, the system also comprises an EEPROM (electrically erasable programmable read-Only memory), wherein the EEPROM is communicated with the main control MCU through the IIC protocol and is used for storing and reading fault information and anti-theft verification codes. The EEPROM is a charged erasable programmable memory, is a memory chip without data loss after power failure, and adopts an AT24C02 chip.
Although the invention has been described in detail above with reference to a general description and specific examples, it will be apparent to one skilled in the art that modifications or improvements may be made thereto based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (8)
1. The utility model provides a computer machine case temperature control system, a serial communication port, the system includes multichannel temperature sensor, multichannel fan, water-cooling circulating water pump, temperature sensor peripheral circuit, rotational speed measurement peripheral circuit, PWM output circuit and main control MCU, multichannel temperature sensor passes through temperature sensor peripheral circuit and is connected to main control MCU, the rotational speed measurement peripheral circuit is connected main control MCU, main control MCU passes through PWM output circuit and connects fan and water pump, multichannel temperature sensor is used for gathering computer machine case's CPU water inlet temperature, CPU delivery port temperature, GPU temperature, main chip temperature, memory temperature, hard disk temperature, quick-witted incasement portion temperature and ambient temperature information respectively, temperature sensor peripheral circuit is used for converting temperature sensing resistance value into voltage signal and inputs to main control MCU, the multichannel the fan includes water-cooling radiator fan, a plurality of circuits, The fan and water pump fault state monitoring system comprises a case exhaust fan, a main chip fan, a memory fan and a hard disk fan, wherein a rotating speed measuring peripheral circuit is used for converting rotating speed signals of the fan and a water pump into signals which can be processed by a main control MCU through an optical coupler, the main control MCU is used for monitoring fault states of all temperature sensors and calculating temperature values according to acquired voltage signals, monitoring fault states of the fan and the water pump according to acquired rotating speed information, adjusting and controlling the rotating speeds of the fan and the water pump according to acquired temperature information, fault states of all temperature sensors and fault state information of all the fan and the water pump, and outputting PMW control signals, and a PWM output circuit is used for outputting PMW signals of the main control MCU to the fan and the water pump.
2. The system of claim 1, further comprising a fault status indication module, wherein the fault status indication module is connected to the main control MCU through a switch circuit, and the fault status indication module comprises an LED status indicator and a buzzer.
3. The system of claim 1, further comprising a CAN communication module connected to the MCU, wherein the CAN communication module is used for reading and collecting data from an external CAN communication device.
4. The system of claim 1, further comprising a power supply module connected to the main control MCU.
5. The system of claim 1, further comprising a liquid crystal display module, wherein the liquid crystal display module communicates with the main control MCU through an SPI protocol for displaying temperature, rotational speed, and fault status information.
6. The system of claim 1, further comprising a serial communication module connected to the MCU for transmitting temperature, rotational speed and fault status data information, and for upgrading software.
7. The system of claim 1, further comprising an EEPROM memory, wherein the EEPROM memory communicates with the main control MCU via the IIC protocol, and is configured to store and read the fault information and the anti-theft verification code.
8. The computer case temperature control system of claim 1, wherein the master MCU is STM32F103VCT 6.
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| CN202111199360.5A CN113900503A (en) | 2021-10-14 | 2021-10-14 | Computer case temperature control system |
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| CN202111199360.5A CN113900503A (en) | 2021-10-14 | 2021-10-14 | Computer case temperature control system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114822607A (en) * | 2022-04-01 | 2022-07-29 | 长鑫存储技术有限公司 | Heat dissipation device and computer system |
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| US20060222045A1 (en) * | 2005-03-30 | 2006-10-05 | Byquist Tod A | Method and system of advanced fan speed control |
| CN205277581U (en) * | 2016-01-18 | 2016-06-01 | 武汉科技大学 | Windy cooling system in engine radiator |
| CN107807695A (en) * | 2017-12-12 | 2018-03-16 | 河南思维轨道交通技术研究院有限公司 | A kind of cooling system and method for supporting the autonomous temperature control regulation rotating speed of multi-fan |
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2021
- 2021-10-14 CN CN202111199360.5A patent/CN113900503A/en active Pending
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20060222045A1 (en) * | 2005-03-30 | 2006-10-05 | Byquist Tod A | Method and system of advanced fan speed control |
| CN205277581U (en) * | 2016-01-18 | 2016-06-01 | 武汉科技大学 | Windy cooling system in engine radiator |
| CN107807695A (en) * | 2017-12-12 | 2018-03-16 | 河南思维轨道交通技术研究院有限公司 | A kind of cooling system and method for supporting the autonomous temperature control regulation rotating speed of multi-fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114822607A (en) * | 2022-04-01 | 2022-07-29 | 长鑫存储技术有限公司 | Heat dissipation device and computer system |
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