CN113778207A - Computer cooling fan speed regulation system and method - Google Patents
Computer cooling fan speed regulation system and method Download PDFInfo
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- CN113778207A CN113778207A CN202111058872.XA CN202111058872A CN113778207A CN 113778207 A CN113778207 A CN 113778207A CN 202111058872 A CN202111058872 A CN 202111058872A CN 113778207 A CN113778207 A CN 113778207A
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- 238000001816 cooling Methods 0.000 title claims abstract description 211
- 238000000034 method Methods 0.000 title claims abstract description 15
- 230000033228 biological regulation Effects 0.000 title claims description 12
- 238000001514 detection method Methods 0.000 claims abstract description 48
- 230000001105 regulatory effect Effects 0.000 claims abstract description 17
- 230000008859 change Effects 0.000 claims description 33
- 230000017525 heat dissipation Effects 0.000 claims description 17
- 238000013016 damping Methods 0.000 claims description 12
- 239000000428 dust Substances 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 8
- 238000013021 overheating Methods 0.000 abstract description 3
- 239000011800 void material Substances 0.000 description 12
- 230000006870 function Effects 0.000 description 7
- 238000007664 blowing Methods 0.000 description 4
- 238000003825 pressing Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000007774 longterm Effects 0.000 description 3
- 230000003068 static effect Effects 0.000 description 3
- 230000001276 controlling effect Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 101000597770 Homo sapiens Tropomodulin-1 Proteins 0.000 description 1
- 102100035291 Tropomodulin-1 Human genes 0.000 description 1
- 230000003044 adaptive effect Effects 0.000 description 1
- 230000003139 buffering effect Effects 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000011218 segmentation Effects 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 230000007704 transition Effects 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
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K13/00—Thermometers specially adapted for specific purposes
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R19/00—Arrangements for measuring currents or voltages or for indicating presence or sign thereof
-
- 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
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3206—Monitoring of events, devices or parameters that trigger a change in power modality
-
- 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
- G06F1/26—Power supply means, e.g. regulation thereof
- G06F1/32—Means for saving power
- G06F1/3203—Power management, i.e. event-based initiation of a power-saving mode
- G06F1/3234—Power saving characterised by the action undertaken
- G06F1/3287—Power saving characterised by the action undertaken by switching off individual functional units in the computer system
Abstract
The invention relates to the technical field of computers, in particular to a speed regulating system and a speed regulating method of a computer cooling fan, which comprises a main case, wherein a main control board is arranged in the main case, the main control board comprises a current detection module, a processor module, a speed changing module and a temperature control module, the inner wall of one side of the main case is connected with a first cooling fan, a second cooling fan, a third cooling fan and a fourth cooling fan through bolts, the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan are respectively and electrically connected with the temperature control module of the main control board through wires, the inner wall of the bottom of the main case is spirally connected with a first temperature sensor, and the inner wall of the top of the main case is spirally connected with a second temperature sensor. The computer processor module is cooled by the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan, so that the computer can achieve a good cooling effect, and the processor module of the computer is prevented from being damaged due to overheating.
Description
Technical Field
The invention relates to the technical field of computers, in particular to a speed regulating system and method for a computer cooling fan.
Background
The computer is commonly called as computer, is a modern electronic computing machine for high-speed computation, can perform numerical computation and logic computation, and also has the function of storage and memory. The intelligent electronic device is a modern intelligent electronic device capable of automatically processing mass data at a high speed according to program operation, a cooling fan is arranged in a computer, and heat generated in the operation process of the computer is cooled by the cooling fan.
Chinese patent No. 201911163947.3 relates to the computer equipment field, specifically discloses an install computer heat abstractor at computer machine case, has the quick-witted case of computer mainboard in it, quick-witted incasement one side be equipped with be used for to the portion of blowing that evenly bloies is carried out on the surface of computer mainboard, with a plurality of heat dissipation inlet ports have been seted up to the equipartition on the curb plate of the quick-witted case of portion of blowing homonymy, and with a plurality of heat dissipation ventholes have been seted up to equidistant on the curb plate of the quick-witted case of portion of blowing offside, under the effect of the portion of blowing, outside air passes through the heat dissipation inlet port and gets into behind the quick-witted incasement and discharges through the heat dissipation venthole.
The heat dissipation fan of the computer in the prior art has a poor heat dissipation effect, which causes a processor of the computer to be easily damaged due to overheating, and the fan of the computer cannot adjust the speed, which causes the heat dissipation fan of the computer to be easily damaged under long-term high-speed rotation.
Disclosure of Invention
The invention aims to provide a speed regulating system and a speed regulating method for a computer cooling fan, which aim to solve the problems that the prior art has poor cooling effect, cannot regulate the speed of the cooling fan, does not have the buffering effect and the like.
The technical scheme of the invention is as follows: a speed regulating system of a computer cooling fan comprises a mainframe box, wherein a main control board is arranged in the mainframe box and comprises a current detection module, a processor module, a speed changing module and a temperature control module, one side inner wall of the mainframe box is connected with a first cooling fan, a second cooling fan, a third cooling fan and a fourth cooling fan through bolts, the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan are respectively and electrically connected with the temperature control module of the main control board through leads, the bottom inner wall of the mainframe box is connected with a first temperature sensor through a screw, the top inner wall of the mainframe box is connected with a second temperature sensor through a screw, the one side inner wall of the mainframe box is connected with a third temperature sensor and a fourth temperature sensor through a screw, the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor are respectively and electrically connected with the temperature control module of the main control board through leads, the bottom inner wall of mainframe box has power module through bolted connection, power module is electric connection through the wire with the variable speed module, one side outer wall of mainframe box is provided with display module, display module is electric connection through the wire with the main control board.
Furthermore, the speed change module comprises a first gear module, a second gear module and a third gear module, and the speed change module adjusts the speed of the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan.
Further, one side outer wall of mainframe box is provided with the apron, the top of apron is embedded to have the second magnet, the top outer wall of mainframe box is embedded to have first magnet, one side that first magnet and second magnet are close to each other is the opposite magnetic pole.
Further, the bottom outer wall integrated into one piece of apron has the jack catch, open the bottom inner wall of mainframe box has the draw-in groove, the apron forms fixed connection through the cooperation of jack catch and draw-in groove and mainframe box.
Furthermore, the outer wall of one side of the cover plate is provided with air inlet holes which are uniformly distributed, the outer wall of one side of the mainframe box is provided with air outlet holes which are uniformly distributed, and a dust screen is arranged in the air outlet holes.
Further, the bottom of mainframe box is provided with the bottom plate, the bottom outer wall of bottom plate is opened there is the mounting hole, the welding has evenly distributed's damping device between mainframe box and the bottom plate, the mainframe box cushions through damping device.
Furthermore, damping device includes the guide pin bushing, the inside grafting of guide pin bushing has the guide pillar, the outside of guide pillar has cup jointed outer spring, the inside of guide pin bushing is provided with interior spring, the bottom and the bottom plate welding of guide pin bushing, the top and the mainframe box welding of guide pillar.
Furthermore, a guide pillar is inserted into the outer wall of one side of the guide sleeve, a limiting groove is formed in the outer wall of one side of the guide pillar, one end of the pin extends into the limiting groove, and the pin limits the sliding of the guide pillar in the guide sleeve.
A speed regulation method for a computer cooling fan comprises the following steps:
s1, detecting the current inside a processor module through a current detection module, and feeding the current inside the processor module back to a temperature control module through the current detection module;
s2, the temperature control module controls the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan to be communicated with the power supply module through information fed back by the current detection module, so that the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan work;
s3, detecting the temperature inside the mainframe box through a temperature sensor, feeding a detection result back to a temperature control module through an electric signal by the temperature sensor I, and changing the current flowing into the first cooling fan by the temperature control module through a speed change module;
s4, detecting the temperature inside the mainframe box through two pairs of temperature sensors, feeding the detection result back to the temperature control module through an electric signal by the temperature sensor II, and changing the current flowing into the cooling fan II through the speed change module by the temperature control module;
s5, detecting the temperature inside the mainframe box through a third temperature sensor, feeding a detection result back to a temperature control module through an electric signal by the third temperature sensor, and changing the current flowing into the third cooling fan through a variable speed module by the temperature control module;
s6, detecting the temperature inside the mainframe box through a fourth temperature sensor, feeding a detection result back to the temperature control module through an electric signal by the fourth temperature sensor, and changing the current flowing into the fourth cooling fan through the speed change module by the temperature control module;
and S7, displaying the working states of the first radiating fan, the second radiating fan, the third radiating fan and the fourth radiating fan through the display module.
Further, the temperature control module sets temperature signals fed back by the first temperature sensor, the second temperature sensor, the third temperature sensor and the fourth temperature sensor to three temperature ranges of 10-30 ℃, 31-40 ℃ and 41-60 ℃, the three temperature ranges respectively correspond to a first gear module, a second gear module and a third gear module of the speed change module, in the step S7, the content displayed by the display module is any integer between 0 and 12, and the result displayed by the display module is used as the heat dissipation grade of the computer.
The invention provides a computer cooling fan speed regulation system and a computer cooling fan speed regulation method through improvement, compared with the prior art, the invention has the following improvement and advantages:
(1) the computer processor module is cooled by the first cooling fan, the second cooling fan, the third cooling fan and the fourth cooling fan, so that the computer can achieve a good cooling effect, and the processor module of the computer is prevented from being damaged due to overheating.
(2) According to the invention, the three gear modules of the speed change module are used for regulating the speed of the four cooling fans, so that the computer has twelve-level cooling gears, and the four cooling fans can independently and automatically regulate the rotating speed according to the four temperature sensors, thereby avoiding the cooling fans from being damaged due to long-term high-speed operation.
(3) According to the invention, the current detection module is used for detecting the current inside the processor module, so that the four cooling fans can work only when the processor module works, the invalid working time of the cooling fans is further reduced, and the electric energy is further saved.
(4) The invention utilizes the damping device to play a good damping effect on the mainframe box of the computer, so that the computer can realize a self-buffering effect in an environment with large ground vibration, and further the computer is prevented from being damaged due to long-term vibration.
Drawings
The invention is further explained below with reference to the figures and examples:
FIG. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a schematic view of the cover plate structure of the present invention;
FIG. 3 is a schematic view of the housing construction of the present invention;
FIG. 4 is a schematic view of the shock absorbing device of the present invention;
FIG. 5 is a schematic view of the structure of the guide post of the present invention;
FIG. 6 is a block diagram of a master control board of the present invention;
FIG. 7 is a control flow diagram of the present invention;
fig. 8 is a block diagram of a shift module of the present invention.
Description of reference numerals:
the device comprises a main case 1, a damping device 2, a bottom plate 3, a mounting hole 4, a guide sleeve 5, a guide pillar 6, an outer spring 7, an inner spring 8, an air outlet 9, a dust screen 10, a first magnet 11, a cover plate 12, a second magnet 13, an air inlet 14, a clamping jaw 15, a clamping groove 16, a main control plate 17, a first temperature sensor 18, a second temperature sensor 19, a third temperature sensor 20, a fourth temperature sensor 21, a first heat dissipation fan 22, a second heat dissipation fan 23, a third heat dissipation fan 24, a fourth heat dissipation fan 25, a power module 26, a pin column 27, a limiting groove 28 and a display module 29.
Detailed Description
The present invention will be described in detail below with reference to fig. 1 to 8, and the technical solutions in the embodiments of the present invention will be clearly and completely described, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. 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.
A speed regulation system of a computer cooling fan comprises a mainframe box 1, wherein the mainframe box 1 is a mainframe shell of a computer, a main control board 17 is arranged in the mainframe box 1, the main control board 17 is a control mainboard of the computer, the main control board 17 comprises a current detection module, a processor module, a speed regulation module and a temperature control module, the current detection module is used for detecting whether current exists in the processor module or not and further determining whether the processor module works or not, one side inner wall of the mainframe box 1 is connected with a cooling fan I22, a cooling fan II 23, a cooling fan III 24 and a cooling fan IV 25 through bolts, the types of the cooling fan I22, the cooling fan II 23, the cooling fan III 24 and the cooling fan IV 25 are G-100, the cooling fan I22, the cooling fan II 23, the cooling fan III 24 and the cooling fan IV 25 are respectively and electrically connected with the temperature control module of the main control board 17 through leads, the temperature control module is used for controlling a first cooling fan 22, a second cooling fan 23, a third cooling fan 24 and a fourth cooling fan 25 to work, the inner wall of the bottom of the main case 1 is spirally connected with a first temperature sensor 18, the inner wall of the top of the main case 1 is spirally connected with a second temperature sensor 19, the inner wall of one side of the main case 1 is spirally connected with a third temperature sensor 20 and a fourth temperature sensor 21, the first temperature sensor 18, the second temperature sensor 19, the third temperature sensor 20 and the fourth temperature sensor 21 are all BM10 in models, the first temperature sensor 18, the second temperature sensor 19, the third temperature sensor 20 and the fourth temperature sensor 21 are respectively and electrically connected with a temperature control module of the main control board 17 through leads, the inner wall of the bottom of the main case 1 is connected with a power module 26 through bolts, and the power module 26 is used for providing adaptive voltage, the power module 26 is electrically connected with the speed changing module through a wire, the outer wall of one side of the mainframe box 1 is provided with a display module 29, the display module 29 is used for displaying the heat dissipation grade of the speed regulation of the fan of the computer, and the display module 29 is electrically connected with the main control board 17 through a wire.
Further, the speed change module comprises a first gear module, a second gear module and a third gear module, the first gear module, the second gear module and the third gear module are used for controlling the rotating speeds of the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25, the rotating speeds controlled by the first gear module, the second gear module and the third gear module are sequentially increased, and the speed change module is used for regulating the rotation speeds of the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25.
Further, a cover plate 12 is arranged on the outer wall of one side of the mainframe box 1, a second magnet 13 is embedded in the top of the cover plate 12, a first magnet 11 is embedded in the outer wall of the top of the mainframe box 1, opposite magnetic poles are arranged on the side, close to each other, of the first magnet 11 and the second magnet 13, and the cover plate 12 and the mainframe box 1 are fixed by utilizing the mutual attraction of the first magnet 11 and the second magnet 13.
Further, the bottom outer wall integrated into one piece of apron 12 has jack catch 15, and open the bottom inner wall of mainframe box 1 has draw-in groove 16, and apron 12 forms fixed connection through the cooperation of jack catch 15 with draw-in groove 16 with mainframe box 1, utilizes the cooperation of jack catch 15 with draw-in groove 16 to make apron 12 be convenient for dismantle.
Furthermore, the outer wall of one side of the cover plate 12 is provided with air inlet holes 14 which are uniformly distributed, the outer wall of one side of the mainframe box 1 is provided with air outlet holes 9 which are uniformly distributed, a dust screen 10 is arranged inside the air outlet holes 9, the air outlet holes 9 are air exhaust outlets of the fan, and the dust screen 10 plays a role in dust prevention.
Further, the bottom of the mainframe box 1 is provided with a bottom plate 3, the bottom outer wall of the bottom plate 3 is provided with a mounting hole 4, a damping device 2 which is uniformly distributed is welded between the mainframe box 1 and the bottom plate 3, the mainframe box 1 is buffered through the damping device 2, and then the computer can work in the environment of high-frequency vibration.
Further, damping device 2 includes guide pin bushing 5, and guide pillar 6 has been pegged graft to the inside of guide pin bushing 5, and outer spring 7 has been cup jointed to the outside of guide pillar 6, and the inside of guide pin bushing 5 is provided with inner spring 8, and the bottom plate 3 welding of guide pin bushing 5, the top and the mainframe box 1 welding of guide pillar 6 realize absorbing effect through outer spring 7 and inner spring 8.
Furthermore, the guide pillar 6 is inserted into the outer wall of one side of the guide sleeve 5, the limiting groove 28 is formed in the outer wall of one side of the guide pillar 6, one end of the pin 27 extends into the limiting groove 28, the pin 27 limits the sliding of the guide pillar 6 in the guide sleeve 5, and the pin 27 plays a limiting role in limiting the guide pillar 27.
Example one
A speed regulation method for a computer cooling fan comprises the following steps:
s1, detecting the current inside a processor module through a current detection module, and feeding the current inside the processor module back to a temperature control module through the current detection module;
s2, the temperature control module controls a first cooling fan 22, a second cooling fan 23, a third cooling fan 24 and a fourth cooling fan 25 to be connected with a power module 26 through information fed back by the current detection module, so that the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 work, the temperature control module sets temperature signals fed back by a first temperature sensor 18, a second temperature sensor 19, a third temperature sensor 20 and a fourth temperature sensor 21 to be three temperature intervals of 10-30 ℃, 31-40 ℃ and 41-60 ℃, and the three temperature intervals respectively correspond to a first gear module, a second gear module and a third gear module of the speed change module;
s3, detecting the temperature inside the mainframe box 1 through a first temperature sensor 18, wherein the temperature detected by the first temperature sensor 18 is 25 ℃, so that the first temperature sensor 18 feeds a detection result back to a temperature control module through an electric signal, and the temperature control module changes the current flowing into a first cooling fan 22 through a speed change module, so that the first gear module controls the first cooling fan 22 to rotate;
s4, detecting the temperature inside the mainframe box 1 through a second temperature sensor 19, wherein the temperature detected by the second temperature sensor 19 is 26 ℃, so that the second temperature sensor 19 feeds a detection result back to a temperature control module through an electric signal, and the temperature control module changes the current flowing into a second cooling fan 23 through a speed change module, so that the first gear module controls the second cooling fan 23 to rotate;
s5, detecting the temperature inside the mainframe box 1 through a third temperature sensor 20, wherein the temperature detected by the third temperature sensor 20 is 26 ℃, so that the third temperature sensor 20 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a third cooling fan 24 through a speed change module, and a first gear module controls the third cooling fan 24 to rotate;
s6, detecting the temperature inside the mainframe box 1 through a fourth temperature sensor 21, wherein the temperature detected by the fourth temperature sensor 21 is 25 ℃, so that the fourth temperature sensor 21 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a fourth cooling fan 25 through a speed change module, and a first gear module controls the fourth cooling fan 25 to rotate;
and S7, displaying the working states of the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 through the display module 29, wherein the content displayed by the display module 29 is 4, and the result displayed by the display module 29 is used as the cooling grade of the computer.
Example two
A computer cooling fan speed regulation system and method includes the following steps:
s1, detecting the current inside a processor module through a current detection module, and feeding the current inside the processor module back to a temperature control module through the current detection module;
s2, the temperature control module controls a first cooling fan 22, a second cooling fan 23, a third cooling fan 24 and a fourth cooling fan 25 to be connected with a power module 26 through information fed back by the current detection module, so that the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 work, the temperature control module sets temperature signals fed back by a first temperature sensor 18, a second temperature sensor 19, a third temperature sensor 20 and a fourth temperature sensor 21 to be three temperature intervals of 10-30 ℃, 31-40 ℃ and 41-60 ℃, and the three temperature intervals respectively correspond to a first gear module, a second gear module and a third gear module of the speed change module;
s3, detecting the temperature inside the mainframe box 1 through a first temperature sensor 18, wherein the temperature detected by the first temperature sensor 18 is 37 ℃, so that the first temperature sensor 18 feeds a detection result back to a temperature control module through an electric signal, and the temperature control module changes the current flowing into a first cooling fan 22 through a speed change module, so that a second gear module controls the first cooling fan 22 to rotate;
s4, detecting the temperature inside the mainframe box 1 through a second temperature sensor 19, wherein the temperature detected by the second temperature sensor 19 is 38 ℃, so that the second temperature sensor 19 feeds a detection result back to the temperature control module through an electric signal, and the temperature control module changes the current flowing into a second cooling fan 23 through the speed change module, so that the second gear module controls the second cooling fan 23 to rotate;
s5, detecting the temperature inside the mainframe box 1 through a third temperature sensor 20, wherein the temperature detected by the third temperature sensor 20 is 39 ℃, so that the third temperature sensor 20 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a third cooling fan 24 through a variable speed module, and a second gear module controls the third cooling fan 24 to rotate;
s6, detecting the temperature inside the mainframe box 1 through a fourth temperature sensor 21, wherein the temperature detected by the fourth temperature sensor 21 is 38 ℃, so that the fourth temperature sensor 21 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a fourth cooling fan 25 through a speed change module, and a second gear module controls the fourth cooling fan 25 to rotate;
and S7, displaying the working states of the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 through the display module 29, wherein the content displayed by the display module 29 is 8, and the result displayed by the display module 29 is used as the cooling grade of the computer.
EXAMPLE III
A computer cooling fan speed regulation system and method includes the following steps:
s1, detecting the current inside a processor module through a current detection module, and feeding the current inside the processor module back to a temperature control module through the current detection module;
s2, the temperature control module controls a first cooling fan 22, a second cooling fan 23, a third cooling fan 24 and a fourth cooling fan 25 to be connected with a power module 26 through information fed back by the current detection module, so that the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 work, the temperature control module sets temperature signals fed back by a first temperature sensor 18, a second temperature sensor 19, a third temperature sensor 20 and a fourth temperature sensor 21 to be three temperature intervals of 10-30 ℃, 31-40 ℃ and 41-60 ℃, and the three temperature intervals respectively correspond to a first gear module, a second gear module and a third gear module of the speed change module;
s3, detecting the temperature inside the mainframe box 1 through a first temperature sensor 18, wherein the temperature detected by the first temperature sensor 18 is 47 ℃, so that the first temperature sensor 18 feeds a detection result back to a temperature control module through an electric signal, and the temperature control module changes the current flowing into a first cooling fan 22 through a speed change module, so that a second gear module controls the first cooling fan 22 to rotate;
s4, detecting the temperature inside the mainframe box 1 through a second temperature sensor 19, wherein the temperature detected by the second temperature sensor 19 is 48 ℃, so that the second temperature sensor 19 feeds a detection result back to the temperature control module through an electric signal, and the temperature control module changes the current flowing into a second cooling fan 23 through the speed change module, so that the second gear module controls the second cooling fan 23 to rotate;
s5, detecting the temperature inside the mainframe box 1 through a third temperature sensor 20, wherein the temperature detected by the third temperature sensor 20 is 49 ℃, so that the third temperature sensor 20 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a third cooling fan 24 through a variable speed module, and a second gear module controls the third cooling fan 24 to rotate;
s6, detecting the temperature inside the mainframe box 1 through a fourth temperature sensor 21, wherein the temperature detected by the fourth temperature sensor 21 is 48 ℃, so that the fourth temperature sensor 21 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a fourth cooling fan 25 through a variable speed module, and the gear module controls the fourth cooling fan 25 to rotate;
s7, displaying the working states of the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 through the display module 29, wherein the content displayed by the display module 29 is 12, and the result displayed by the display module 29 is used as the cooling grade of the computer.
The temperature control modules adopted in the first, second and third embodiments are different in the temperatures detected by the first temperature sensor 18, the second temperature sensor 19, the third temperature sensor 20 and the fourth temperature sensor 21, and the other parameters are the same, so that the display module 29 displays different heat dissipation levels, and the higher the heat dissipation level is, the stronger the heat dissipation function of the main cabinet 1 of the computer is.
The program of the temperature control module is as follows:
# include// Call one-chip headpiece File
Range of # define uchar assigned char// unsigned character macro definition variable from 0 to 255
Range of # define element assigned int// unsigned integer macro definition variable 0-65535
// display Module segmentation definition 0123456789
Uchar code smg _ du [ ] = {0x28,0xee,0x42,0x72,0xe5,0xa8,0x41,0x77,0x20,0xa0,0x60,0x25,0x39,0x26,0x31,0x71,0xff }, and/or break code
// display Module bit selection definition
uchar code smg_we[]={0xef,0xdf,0xbf,0x7f};
uchar dis_smg[4] = {0};
uchar smg _ i = 3// single digit display module
sbit dq = P2^4,/18 b20 IO Port definition
bit flag lj en, key enable
The larger the number of enabled addition after the key is continuously added for 3 times is
uchar key _ time, key _ value// intermediate variable used as a running sum
bit key_500ms ;
sbit pwm = P2^3;
uchar f_pwm_l ; //
uint temperature ; //
bit flag_300ms ;
uchar menu _ 1. variables of menu design
u int _ high = 300, t _ low = 230;/upper and lower temperature limits
void delay_1ms(uint q)
{
uint i,j;
for(i=0;i<8;i++） ; for(j=0;j<120;j++);
}
void delay_uint(uint q)
{
while(q--);
}
void display()
{
static uchar i;
i++;
if(i >= smg_i)
i = 0;
P1 =0 xff// blanking
P3 = smg _ we [ i ],/bit select
P1 = dis _ smg [ i ]/section selection
}
void init_18b20()
{
bit q;
dq = 1// take the bus high
delay_uint(1);
dq = 0// giving a reset pulse
delay_uint(80);
dq = 1// take the bus high latency
delay_uint(10);
q = dq// read 18b20 initialization signal
delay_uint(20);
dq = 1// take the bus high release bus
}
void write_18b20(uchar dat)
{
uchar i;
for(i=0;i<8;i++)
{// write data is the lower order Start
dq = 0// starting the bus with a low write time slot
dq = dat & 0x 01// writing data to the 18b20 bus
delay_uint(5);
dq = 1// release bus
dat >>= 1;
}
}
uchar read_18b20()
{
uchar i,value;
for(i=0;i<8;i++)
{
dq = 0// starting the bus with a low read gap
value > > = 1// read data is the low bit start
dq = 1// release bus
if (dq = = 1)// start reading and writing data
value |= 0x80;
delay _ agent (5)// read one time gap
}
return value// return data
}
uint read_temp()
{
uint value;
uchar low// if interrupts are too frequent while reading temperature, interrupts should be turned off, otherwise the timing of 18b20 would be affected
init _18b20(),/initialize 18b20
write _18b20(0 xcc);/skip 64-bit ROM
write _18b20(0x 44);/initiate a temperature transition command
delay_uint(50);
init _18b20(),/initialize 18b20
write _18b20(0 xcc);/skip 64-bit ROM
write _18b20(0xbe), issue read register command
low = read _18b20(), read temperature low byte
value = read _18b20(),/read temperature high byte
value < = 8// shift the high position of temperature by 8 bits left
value | = low;/put the lower bit of the read temperature into the lower eight bits of value
value = 0.625// convert to a fractional value of temperature value
Return value// the fraction of the temperature band returning the read
}
void time_init()
{
EA = 1// on total interrupt
TMOD =0X 21, timer 0, timer1 mode of operation 1
ET0 = 1// on timer 0 interrupt
TR0 = 1// allow timer 0 to time
}
uchar key can// key value
void key ()// independent key program
{
uchar key_new;
key _ can = 0// key value reduction
P2 |= 0x07;
if ((P2 & 0x07) | =0x 07)// key press
{
if (key _500ms = = 1)// continuous addition
{
key_500ms = 0;
key_new = 1;
}
delay-1 ms (1)// key debouncing
if (((P2 & 0x 07)! =0x 07) & & (key _ new = = 1)) {// confirm that the key is pressed
key_new = 0;
switch(P2 & 0x07)
{
case 0x06 key _ can = 3, break// get k2 key value
case 0x05 key _ can = 2, break// get k3 key value
case 0x02 key _ can = 1, break// get k4 key value
}
flag _ lj _ en = 1// running enable
}
}
else
{
key_new = 1;
flag _ lj _ en = 0// close the concatenation enable
flag _ lj _3_ en = 0// is enabled after 3 seconds of shutdown
key _ value = 0// clear
key_time = 0;
key_500ms = 0;
}
}
The button processing display module displays a function
void key_with()
{
if (key _ can = = 1)// set key
{
menu_1 ++;
if(menu_1 >= 3)
{
menu_1 = 0;
smg _ i = 3, and/or the display module displays 3 bits
}
}
if (menu _ 1= = 1)// set high temperature
{
smg _ i = 4, and/or the display module displays 4 bits
if(key_can == 2)
{
if(flag_lj_3_en == 0)
t _ high + +,/key press not released automatically plus three times
else
t _ high + = 10, and/or automatically adding 10 after pressing button to undetached and automatically adding three times
if(t_high > 990)
t_high = 990;
}
if(key_can == 3)
{
if(flag_lj_3_en == 0)
t _ high, and/or three times when the button is not released
else
t _ high- = 10, and/or automatically subtracting 10 after pressing button and not releasing for three times
if(t_high <= t_low)
t_high = t_low + 1;
}
dis _ smg [0] = smg _ du [ t _ high% 10 ]/display in decimal
dis _ smg [1] = smg _ du [ t _ high/10% 10] & 0 xdf// bit-in-display
dis _ smg [2] = smg _ du [ t _ high/100% 10 ]/ten-digit display
dis_smg[3] = 0x64; //H
}
if (menu _ 1= = 2)// set low temperature
{
smg _ i = 4, and/or the display module displays 4 bits
if(key_can == 2)
{
if(flag_lj_3_en == 0)
t _ low + +,/key press not released automatically plus three times
else
t _ low + = 10, after pressing button, adding 10 automatically after three times automatically
if(t_low >= t_high)
t_low = t_high - 1;
}
if(key_can == 3)
{
if(flag_lj_3_en == 0)
t _ low, and/or three times when the key is not released
else
t _ low- = 10, and/or adding 10 automatically after pressing button and not releasing and adding three times automatically
if(t_low <= 10)
t_low = 10;
}
dis _ smg [0] = smg _ du [ t _ low% 10 ]/display in decimal
dis _ smg [1] = smg _ du [ t _ low/10% 10] & 0 xdf// bit-in-place display
dis _ smg [2] = smg _ du [ t _ low/100% 10 ]/ten digit display
dis_smg[3] = 0x3D; //L
}
}
And a fan control function
void fengshan_kz()
{
if (temperature > = t _ high)// fan is fully on
{
TR1 = 1;
pwm = 0;
}
else if ((temperature < t _ high) & (temperature > = t _ low))// fan slow
{
f_pwm_l = 60;
TR1 = 1;
}
else if (temperature < t _ low)// turn off fan
{
TR1 = 0;
pwm = 1;
}
}
And a master function
void main()
{
time _ init ()/initialize timer
while(1)
{
key (),/key program
key _ with (),/set temperature
if (flag _300ms = = 1)// 300ms process one temperature program
{
flag_300ms = 0;
temperature = read _ temp (), value of// temperature read first
smg_i = 3;
dis _ smg [0] = smg _ du [ temperature% 10 ]/display by decimal number of temperature
dis _ smg [1] = smg _ du [ temperature/10% 10] & 0xdf, and// temperature is shown in units
dis _ smg [2] = smg _ du [ temperature/100% 10 ]/take ten digit display of temperature
}
fengshan _ kz (),/fan control function
}
}
(vii) timer 0 interrupt service routine
void time0_int() interrupt 1
{
static uchar value// timed for a 2ms interruption
TH0 = 0xf8;
TL0 = 0x30; //2ms
display (),/display module display function
value++;
if(value >= 150)
{
value = 0;
flag_300ms = 1;
}
if (flag _ lj _ en = = 1)// key press enable
{
key_time ++;
if(key_time >= 250) //500ms
{
key_time = 0;
key_500ms = 1; //500ms
key_value ++;
if(key_value > 3)
{
key_value = 10;
flag _ lj _3_ en = 1// 3 times later than 1.5 seconds and more
}
}
}
}
Timer1 was used as a one-chip simulation PWM adjustment
void Timer1() interrupt 3// Call Timer1
{
static uchar value_l;
TH1=0x0f, and/or one timer interrupt
TL1=0xec; //
if(pwm==1)
{
value_l+=3;
if (value _ l > f _ pwm _ l)// high level
{
value_l=0;
pwm=0;
}
}
else
{
value_l+=3;
if (value _ l > 100-f _ pwm _ l)// Low level
{
value_l=0;
pwm=1;
}
}
}
The working principle is as follows: s1, detecting the current inside a processor module through a current detection module, and feeding the current inside the processor module back to a temperature control module through the current detection module; s2, the temperature control module controls a first cooling fan 22, a second cooling fan 23, a third cooling fan 24 and a fourth cooling fan 25 to be connected with a power module 26 through information fed back by the current detection module, so that the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 work, the temperature control module sets temperature signals fed back by a first temperature sensor 18, a second temperature sensor 19, a third temperature sensor 20 and a fourth temperature sensor 21 to be three temperature intervals of 10-30 ℃, 31-40 ℃ and 41-60 ℃, and the three temperature intervals respectively correspond to a first gear module, a second gear module and a third gear module of the speed change module; s3, detecting the temperature inside the mainframe box 1 through a first temperature sensor 18, wherein the temperature detected by the first temperature sensor 18 is 57 ℃, so that the first temperature sensor 18 feeds a detection result back to a temperature control module through an electric signal, and the temperature control module changes the current flowing into a first cooling fan 22 through a speed change module, so that a second gear module controls the first cooling fan 22 to rotate; s4, detecting the temperature inside the mainframe box 1 through a second temperature sensor 19, wherein the temperature detected by the second temperature sensor 19 is 58 ℃, so that the second temperature sensor 19 feeds a detection result back to the temperature control module through an electric signal, and the temperature control module changes the current flowing into the second cooling fan 23 through the speed change module, so that the second gear module controls the second cooling fan 23 to rotate; s5, detecting the temperature inside the mainframe box 1 through a third temperature sensor 20, wherein the temperature detected by the third temperature sensor 20 is 61 ℃, so that the third temperature sensor 20 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a third cooling fan 24 through a variable speed module, and the third cooling fan 24 is controlled to rotate by a gear module; s6, detecting the temperature inside the mainframe box 1 through a fourth temperature sensor 21, wherein the temperature detected by the fourth temperature sensor 21 is 61 ℃, so that the fourth temperature sensor 21 feeds a detection result back to a temperature control module through an electric signal, the temperature control module changes the current flowing into a fourth cooling fan 25 through a variable speed module, and the gear module controls the fourth cooling fan 25 to rotate; and S7, displaying the working states of the first cooling fan 22, the second cooling fan 23, the third cooling fan 24 and the fourth cooling fan 25 through the display module 29, wherein the content displayed by the display module 29 is 10, and the result displayed by the display module 29 is used as the cooling grade of the computer.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (10)
1. A speed regulating system of a computer cooling fan comprises a mainframe box (1) and is characterized in that a main control board (17) is arranged inside the mainframe box (1), the main control board (17) comprises a current detection module, a processor module, a speed change module and a temperature control module, one side inner wall of the mainframe box (1) is connected with a first cooling fan (22), a second cooling fan (23), a third cooling fan (24) and a fourth cooling fan (25) through bolts, the first cooling fan (22), the second cooling fan (23), the third cooling fan (24) and the fourth cooling fan (25) are respectively electrically connected with the temperature control module of the main control board (17) through leads, the bottom inner wall of the mainframe box (1) is connected with a first temperature sensor (18) through a spiral, the top inner wall of the mainframe box (1) is connected with a second temperature sensor (19) through a spiral, there are three (20) of temperature sensor and four (21) of temperature sensor in one side inner wall of mainframe box (1) through threaded connection, temperature sensor one (18), two (19) of temperature sensor, three (20) of temperature sensor and four (21) of temperature sensor are electric connection through the wire with the control by temperature change module of main control board (17) respectively through the wire, there are power module (26) bottom inner wall of mainframe box (1) through bolted connection, power module (26) are electric connection through the wire with the speed change module, one side outer wall of mainframe box (1) is provided with display module (29), display module (29) are electric connection through the wire with main control board (17).
2. The computer cooling fan speed regulating system of claim 1, wherein: the speed change module comprises a first gear module, a second gear module and a third gear module, and the speed change module adjusts the speed of the rotation of the first cooling fan (22), the second cooling fan (23), the third cooling fan (24) and the fourth cooling fan (25).
3. The computer cooling fan speed regulating system of claim 1, wherein: the utility model discloses a portable computer mainframe box, including mainframe box (1), one side outer wall of mainframe box (1) is provided with apron (12), the top of apron (12) is embedded to have second magnet (13), the top outer wall of mainframe box (1) is embedded to have first magnet (11), one side that first magnet (11) and second magnet (13) are close to each other is the opposite magnetic pole.
4. The computer cooling fan speed regulating system of claim 3, wherein: the bottom outer wall integrated into one piece of apron (12) has jack catch (15), open the bottom inner wall of mainframe box (1) has draw-in groove (16), apron (12) form fixed connection with mainframe box (1) through the cooperation of jack catch (15) and draw-in groove (16).
5. The computer cooling fan speed regulating system of claim 3, wherein: the air inlet that has evenly distributed is opened to one side outer wall of apron (12), one side of apron (12) is provided with detachable and blocks the net, one side outer wall of mainframe box (1) is opened has evenly distributed's air outlet (9), the inside of air outlet (9) is provided with dust screen (10).
6. The computer cooling fan speed regulating system of claim 1, wherein: the bottom of mainframe box (1) is provided with bottom plate (3), the bottom outer wall of bottom plate (3) is opened there are mounting hole (4), the welding has evenly distributed's damping device (2) between mainframe box (1) and bottom plate (3), mainframe box (1) cushions through damping device (2).
7. The computer cooling fan speed regulating system of claim 6, wherein: the damping device (2) comprises a guide sleeve (5), a guide pillar (6) is inserted into the guide sleeve (5), an outer spring (7) is sleeved outside the guide pillar (6), an inner spring (8) is arranged inside the guide sleeve (5), the bottom end of the guide sleeve (5) is welded with the bottom plate (3), and the top end of the guide pillar (6) is welded with the mainframe box (1).
8. The computer cooling fan speed regulating system of claim 1, wherein: the guide sleeve is characterized in that a guide pillar (6) is inserted into the outer wall of one side of the guide sleeve (5), a limiting groove (28) is formed in the outer wall of one side of the guide pillar (6), one end of the pin (27) extends into the limiting groove (28), and the pin (27) limits the sliding of the guide pillar (6) in the guide sleeve (5).
9. A speed regulation method for a computer cooling fan is characterized by comprising the following steps: the method comprises the following steps:
s1, detecting the current inside a processor module through a current detection module, and feeding the current inside the processor module back to a temperature control module through the current detection module;
s2, the temperature control module controls the first cooling fan (22), the second cooling fan (23), the third cooling fan (24) and the fourth cooling fan (25) to be communicated with the power module (26) through information fed back by the current detection module, so that the first cooling fan (22), the second cooling fan (23), the third cooling fan (24) and the fourth cooling fan (25) work;
s3, detecting the temperature inside the mainframe box (1) through a first temperature sensor (18), feeding a detection result back to a temperature control module through an electric signal by the first temperature sensor (18), and changing the current flowing into a first cooling fan (22) through a variable speed module by the temperature control module;
s4, detecting the temperature inside the mainframe box (1) through a second temperature sensor (19), feeding a detection result back to the temperature control module through an electric signal by the second temperature sensor (19), and changing the current flowing into a second cooling fan (23) through the speed change module by the temperature control module;
s5, detecting the temperature inside the mainframe box (1) through a temperature sensor III (20), feeding a detection result back to a temperature control module through an electric signal by the temperature sensor III (20), and changing the current flowing into a cooling fan III (24) through a speed change module by the temperature control module;
s6, detecting the temperature inside the mainframe box (1) through a temperature sensor IV (21), feeding a detection result back to a temperature control module through an electric signal by the temperature sensor IV (21), and changing the current flowing into a cooling fan IV (25) through a speed change module by the temperature control module;
and S7, displaying the working states of the first cooling fan (22), the second cooling fan (23), the third cooling fan (24) and the fourth cooling fan (25) through a display module (29).
10. The method for regulating the speed of the cooling fan of the computer according to claim 9, characterized in that: the temperature control module sets temperature signals fed back by a first temperature sensor (18), a second temperature sensor (19), a third temperature sensor (20) and a fourth temperature sensor (21) to three temperature ranges of 10-30 ℃, 31-40 ℃ and 41-60 ℃, the three temperature ranges respectively correspond to a first gear module, a second gear module and a third gear module of the speed change module, in the step S7, the content displayed by the display module (29) is any integer between 0 and 12, and the result displayed by the display module (29) is used as the heat dissipation grade of the computer.
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| CN202111058872.XA CN113778207A (en) | 2021-09-10 | 2021-09-10 | Computer cooling fan speed regulation system and method |
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| CN110410353A (en) * | 2019-06-27 | 2019-11-05 | 深圳中电长城信息安全系统有限公司 | Control method for fan, device and terminal device |
| CN212781855U (en) * | 2020-04-27 | 2021-03-23 | 重庆木九科技有限公司 | Energy-saving and environment-friendly computer case |
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| US20050201056A1 (en) * | 2004-03-11 | 2005-09-15 | Hao-Cheng Lin | Heat-dissipating device for a computer casing |
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Application publication date: 20211210 |