CN111596744B - Intelligent control computer - Google Patents
Intelligent control computer Download PDFInfo
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- CN111596744B CN111596744B CN201911265837.8A CN201911265837A CN111596744B CN 111596744 B CN111596744 B CN 111596744B CN 201911265837 A CN201911265837 A CN 201911265837A CN 111596744 B CN111596744 B CN 111596744B
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- 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
Abstract
The invention provides an intelligent control computer, which comprises an intelligent frequency conversion system, wherein each component of the intelligent frequency conversion system is integrated on a circuit board, and the voltage input end of the circuit board is connected with a power module of the computer; determining a computer using the intelligent frequency conversion system to be any one of a notebook computer or a desktop computer; if the device using the intelligent frequency conversion system is a desktop computer, the heat dissipation equipment is set to be in a first size, the circuit board is fixed with the heat dissipation equipment, and the heat dissipation equipment is fixed with a shell of the desktop computer; if the device using the intelligent frequency conversion system is a notebook computer, the heat dissipation equipment is set to be of a second size, the circuit board is fixed with the heat dissipation equipment, and the heat dissipation equipment is fixed with a shell of the notebook computer; the heat dissipation device is a fan. This computer is integrated on a module with radiator unit and frequency conversion unit, can directly demolish, change when radiator unit or frequency conversion unit appear damaging, facilitates the use.
Description
Technical Field
The invention relates to the technical field of computers, in particular to an intelligent control computer.
Background
Computers, including desktop computers and notebook computers, generate a lot of heat during the use of the computers, when devices such as central processing units of the computers work at high temperature, the running speed is slow, and the devices such as the central processing units work at high temperature for a long time, the consumption is fast. Therefore, a heat dissipation device, such as a fan, is installed in the computer during the production process of the computer, and the heat dissipation device dissipates heat to the devices such as the cpu through the fan.
In the existing computer, the heat dissipation device includes at least two, which are a CPU heat dissipation device and a power supply heat dissipation device. The two heat dissipating devices are respectively connected with a mainboard of the computer and controlled by the CPU to work.
The opening and closing of the heat dissipation device are controlled by the CPU, when the heat dissipation device is in a problem and is maintained, the whole computer needs to be sent for maintenance, and the computer cannot work normally.
Disclosure of Invention
The invention provides an intelligent control computer, which integrates a heat dissipation device and a frequency conversion unit on a module, can be directly disassembled and replaced when the heat dissipation device or the frequency conversion unit is damaged, and is convenient to use.
An intelligent control computer, includes intelligent frequency conversion system, still includes following structure:
integrating all components of the intelligent frequency conversion system on a circuit board, wherein the voltage input end of the circuit board is connected with a power module of a computer;
determining that a computer using the intelligent frequency conversion system is any one of a notebook computer or a desktop computer;
if the device using the intelligent frequency conversion system is a desktop computer, setting the heat dissipation equipment to be a first size, fixing the circuit board and the heat dissipation equipment, and fixing the heat dissipation equipment and a shell of the desktop computer;
if the device using the intelligent frequency conversion system is a notebook computer, the heat dissipation equipment is set to be of a second size, the circuit board is fixed with the heat dissipation equipment, and the heat dissipation equipment is fixed with a shell of the notebook computer;
the heat dissipation device is a fan.
Further, in the above-mentioned case,
the heat dissipation device comprises a fan and a fixing frame, and further comprises the following structures:
fixing the fan by the fixing frame, fixing the circuit board and the fixing frame, connecting the power output end of the circuit board with the power input end of the fan, and connecting the power input end of the circuit board with any one of a power module of a computer, a mains supply or a storage battery;
the fixing frame is fixed to the casing of the computer so that the fan faces either the CPU or the power supply module.
In a further aspect of the present invention,
a main board is arranged in the computer, and the main board is any one of a four-layer board or a six-layer board;
when the mainboard is a four-layer board, the mainboard comprises a signal layer, a grounding layer, a power supply layer and a secondary signal layer;
when the mainboard is a six-layer board, the mainboard comprises a signal layer, a grounding layer, a power layer, a secondary signal layer, an auxiliary power layer and a middle signal layer;
the mainboard is also provided with any one or more of an expansion slot, a hard disk interface, a floppy drive interface, a COM interface, a PS/2 interface, a USB interface, an LPT interface, a MIDI interface and a SATA interface;
the sampling unit is connected with the USB interface, the sampling unit collects temperature data in real time and transmits the temperature data to the CPU through the USB interface, and the CPU controls the display to display the temperature data.
In a further aspect of the present invention,
the intelligent frequency conversion system comprises:
the sampling unit is used for collecting the internal temperature of the computer and outputting the detection voltage of the analog quantity;
the device comprises a preset voltage providing unit, a first voltage generating unit and a second voltage generating unit, wherein the preset voltage providing unit is used for providing a first preset voltage and a second preset voltage of an analog quantity;
a frequency conversion unit connected with the sampling unit and used for receiving the detection voltage,
when the detection voltage is smaller than a first preset voltage, outputting a low-level zero-power signal;
when the detection voltage is greater than the first preset voltage and less than the second preset voltage, outputting a first power signal with a high level;
when the detection voltage is greater than a second preset voltage, outputting a second power signal with a high level;
the heat dissipation device is controlled by a zero power signal to be out of work, the heat dissipation device is controlled by a first power signal to work according to a first power, the heat dissipation device is controlled by a second power signal to work according to a second power, and the first power and the second power are different working powers.
Further, in the above-mentioned case,
the sampling unit is a temperature sensor;
the preset voltage providing unit comprises a first preset resistor, a second preset resistor and a third preset resistor which are connected in series and are arranged for simulating grounding;
the frequency conversion unit comprises a comparison module and a driving module, the comparison module comprises a first comparator and a second comparator, the output end of the temperature sensor is connected with the forward input ends of the first comparator and the second comparator, the node of the first preset resistor and the second preset resistor is connected with the reverse input end of the second comparator, and the node of the second preset resistor and the third preset resistor is connected with the reverse input end of the first comparator;
the drive module is including the first drive triode, the second drive triode that establish ties and set up, the collecting electrode and the heat dissipation equipment of first drive triode, power series connection, and the output of first comparator is connected with the base of first drive triode, still includes first variable frequency resistance and second variable frequency resistance, first variable frequency resistance is connected with the collecting electrode of first drive triode, and second variable frequency resistance sets up with second drive triode is parallelly connected, and the both ends of second variable frequency resistance are connected with the projecting pole and the collecting electrode of second drive triode respectively, and the projecting pole of second drive triode connects the analog ground.
Further, in the above-mentioned case,
the intelligent frequency conversion system also comprises a frequency stabilization unit, wherein one end of the frequency stabilization unit is connected with the frequency conversion unit, and the other end of the frequency stabilization unit is connected with the heat dissipation equipment;
when the frequency stabilization unit receives a zero-power signal, the selection unit controls a loop where the heat dissipation equipment is located to be not conducted, and the heat dissipation equipment is not electrified to work;
when the frequency stabilization unit receives the first power signal, the selection unit controls the conduction of a loop where the heat dissipation equipment is located, and the heat dissipation equipment works according to the first power;
when the frequency stabilizing unit receives the second power signal, the selecting unit controls the conduction of a loop where the heat radiating equipment is located, and the heat radiating equipment works according to the second power.
In a further aspect of the present invention,
the first frequency stabilization unit comprises a first operational amplifier, a first frequency stabilization triode, a first frequency stabilization resistor, a second frequency stabilization resistor and a first frequency stabilization capacitor;
the reverse input end of the first operational amplifier is connected with the reference frequency input end, the output end of the first operational amplifier is connected with the base electrode of the first frequency stabilization triode, the collector electrode of the first frequency stabilization triode is connected with the high-level power supply, the emitter electrode of the first frequency stabilization triode is connected with the first frequency stabilization resistor and the second frequency stabilization resistor in series and grounded, the node of the first frequency stabilization resistor and the second frequency stabilization resistor is connected with the forward input end of the first operational amplifier, the node of the emitter electrode of the first frequency stabilization triode and the first frequency stabilization resistor is connected with the first frequency stabilization capacitor in series and grounded, and the emitter electrode of the first frequency stabilization triode and the node of the first frequency stabilization resistor are connected with the selection unit and the coordination unit respectively.
Further, in the above-mentioned case,
the second frequency stabilization unit comprises a second operational amplifier, a second frequency stabilization triode, a third frequency stabilization resistor, a fourth frequency stabilization resistor and a second frequency stabilization capacitor;
the reverse input end of the second operational amplifier is connected with the reference frequency input end, the output end of the second operational amplifier is connected with the base electrode of a third frequency stabilization triode, the collector electrode of the third frequency stabilization triode is connected with a high-level power supply, the emitter electrode of the second frequency stabilization triode is in series connection with a third frequency stabilization resistor and a fourth frequency stabilization resistor in a grounding mode, the node of the third frequency stabilization resistor and the node of the fourth frequency stabilization resistor are connected with the forward input end of the second operational amplifier, the node of the emitter electrode of the second frequency stabilization triode and the node of the third frequency stabilization resistor are in series connection with a second frequency stabilization capacitor in a grounding mode, and the node of the emitter electrode of the second frequency stabilization triode and the node of the third frequency stabilization resistor are connected with the selection unit.
Further, in the above-mentioned case,
the selection unit comprises a first switch triode and a second switch triode, an emitting electrode of the first switch triode is connected with an emitting electrode of the second switch triode, one end of a connecting node of the emitting electrode of the first switch triode and the emitting electrode of the second switch triode is connected with the first switch capacitor in series and grounded, and the other end of the connecting node of the emitting electrode of the first switch triode and the emitting electrode of the second switch triode is connected with the radiating equipment in series and grounded.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
The technical solution of the present invention is further described in detail by the accompanying drawings and embodiments.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural diagram of a first embodiment of an intelligent control computer;
FIG. 2 is a schematic structural diagram of a heat dissipation apparatus;
fig. 3 is a schematic structural diagram of a second embodiment of the intelligent control computer.
FIG. 4 is a system diagram of a first embodiment of an intelligent frequency conversion system;
FIG. 5 is a schematic circuit diagram of a second embodiment of an intelligent frequency conversion system;
fig. 6 is a schematic circuit diagram of a third embodiment of the intelligent frequency conversion system.
Reference numerals:
1. a heat dissipating device; 11. a fixing frame; 12. a fan; 2. a circuit board; 110. a sampling unit; 120. a preset voltage providing unit; 130. a frequency conversion unit; 140. a heat sink device; 150. a first frequency stabilization unit; 160. a second frequency stabilization unit; 170. and a selection unit.
Detailed Description
The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it should be understood that they are presented herein only to illustrate and explain the present invention and not to limit the present invention.
An intelligent control computer, as shown in fig. 1 and fig. 2, has a schematic structural diagram, and includes an intelligent frequency conversion system, and further includes the following structure: all components and parts of the intelligent frequency conversion system are integrated on a circuit board 2, and the voltage input end of the circuit board 2 is connected with a power module of a computer. And determining the computer using the intelligent frequency conversion system to be any one of a notebook computer or a desktop computer. If the device using the intelligent frequency conversion system is a desktop computer, the heat dissipation device 1 is set to be of a first size, the circuit board 2 is fixed with the heat dissipation device 1, and the heat dissipation device 1 is fixed with a shell of the desktop computer. If the device using the intelligent frequency conversion system is a notebook computer, the heat dissipation device 1 is set to be in the second size, the circuit board 2 is fixed with the heat dissipation device 1, and the heat dissipation device 1 is fixed with a shell of the notebook computer. The heat dissipation device 1 is a fan 12. Through the mode, the intelligent frequency conversion circuit is integrated on the circuit board 2, so that the control module of the heat dissipation device 1 is integrated independently, the desktop is large, the heat dissipation device 1 is set to be in the first size, large-scale heat dissipation processing can be carried out, and the notebook is small, so that the heat dissipation device 1 is set to be in the second size, and small-scale heat dissipation processing can be carried out. When any one of the heat dissipation device 1 and the intelligent frequency conversion system is damaged, the heat dissipation device can be directly disassembled, and the computer can be used again after replacement. When any one module of the heat dissipation device 1 or the frequency conversion unit 130 is damaged, the module can be timely detached and replaced.
In one embodiment, the heat dissipation apparatus 1 includes a fan 12 and a fixing frame 11, and further includes the following structure: fixing the fan 12 by the fixing frame 11, fixing the circuit board 2 and the fixing frame 11, connecting the power output end of the circuit board 2 with the power input end of the fan 12, and connecting the power input end of the circuit board 2 with any one of a power module of a computer, a commercial power supply or a storage battery; the fixing frame 11 is fixed to a casing of a computer so that the fan 12 faces either the CPU or the power module. Can fix fan 12 through fixed frame 11, circuit board 2 and fixed frame 11 are fixed, realize that circuit board 2 (intelligent frequency conversion system), fan 12 and fixed frame 11 (heat abstractor 1) become an solitary module, convenient dismantlement and change.
In one embodiment, as shown in fig. 3, a motherboard is disposed inside the computer, and the motherboard is any one of a four-layer board or a six-layer board; when the mainboard is a four-layer board, the mainboard comprises a signal layer, a grounding layer, a power supply layer and a secondary signal layer; when the mainboard is a six-layer board, the mainboard comprises a signal layer, a grounding layer, a power layer, a secondary signal layer, an auxiliary power layer and a middle signal layer; the mainboard is also provided with any one or more of an expansion slot, a hard disk interface, a floppy drive interface, a COM interface, a PS/2 interface, a USB interface, an LPT interface, a MIDI interface and a SATA interface; the sampling unit 110 is connected with the USB interface, the sampling unit 110 collects temperature data in real time and transmits the temperature data to the CPU through the USB interface, and the CPU controls the display to display the temperature data. The temperature data is transmitted to the CPU for display through the USB interface, and the temperature data is convenient to watch.
As shown in fig. 4, the schematic structural diagram of the intelligent frequency conversion system includes: the sampling unit 110 is configured to collect an internal temperature of the computer and output a detection voltage of the analog quantity, where the sampling unit 110 may be a temperature sensor, the temperature sensor can collect an internal temperature of the computer, and the sampling unit may be disposed at a CPU of the computer or a power module of the computer, and the sampling unit 110 may be configured to monitor a temperature of the CPU or the power module of the computer and output a detection voltage of the analog quantity, where the detection voltage may be 1.0V, 2.2V, 3.5V, 4.0V, and the like, and the higher the temperature is, the higher the output detection voltage is.
The preset voltage providing unit 120 is configured to provide a first preset voltage and a second preset voltage of an analog quantity, where the first preset voltage and the second preset voltage are different voltage values, and preferably the second preset voltage is set to be greater than the first preset voltage, where the first preset voltage may be 1.0V, 2.2V, 3.5V, 4.0V, and the like, and where the first preset voltage may be 1.1V, 2.3V, 3.6V, 4.1V, and the like.
And a frequency conversion unit 130 connected to the sampling unit 110, configured to receive the detection voltage, and output a low-level zero-power signal when the detection voltage is smaller than a first preset voltage. The first preset voltage can be regarded as corresponding to a first temperature value, and when the sampling unit 110 detects that the temperature in the computer reaches the first temperature value, the sampling unit outputs a voltage value of the first preset voltage. That is, when the temperature in the computer is lower than the first temperature value, the frequency conversion unit 130 outputs a zero power signal.
And when the detection voltage is greater than the first preset voltage and less than the second preset voltage, outputting a first power signal with high level. The second preset voltage may be regarded as corresponding to a second temperature value, and when the sampling unit 110 detects that the temperature in the computer reaches the second temperature value, it outputs a voltage value of the second preset voltage. That is, when the temperature in the computer is higher than the first temperature value and lower than the second temperature value, the frequency conversion unit 130 outputs the first power signal.
And when the detection voltage is greater than the second preset voltage, outputting a second power signal with a high level. The second preset voltage can be regarded as corresponding to a second temperature value, and when the sampling unit 110 detects that the temperature in the computer reaches the second temperature value, it outputs a voltage value of the second preset voltage. That is, when the temperature in the computer is higher than the second temperature value, the frequency conversion unit 130 outputs the second power signal. Wherein the second power signal is higher than the first power signal.
The heat dissipation device 1 is controlled by a zero power signal and does not work, at this time, the temperature in the computer is defaulted to be lower than a first temperature value, and each device in the computer can work normally and is not influenced by the temperature, so that the heat dissipation device 1 does not work.
The heat dissipation device 1 is controlled by the first power signal to work according to the first power, the temperature in the computer is higher than the first temperature value and lower than the second temperature value by default at the moment, the temperature of the device is not particularly high at the moment, the work of the device cannot be influenced, but the temperature is close to the temperature which can influence the device, so the heat dissipation device 1 works according to the first power at the moment, the effect achieved by the above modes is that when the temperature of the device is restrained from rising, the heat dissipation device 1 cannot work under the rated power or overload, larger noise cannot be generated, and the frequency conversion effect is achieved.
The heat dissipation device 1 is controlled by the second power signal to work according to the second power, the default is that the temperature in the computer is higher than the second temperature value, and the normal work of the heat dissipation device is influenced by the higher temperature of the heat dissipation device at the moment, so that the heat dissipation device 1 works according to the second power, and the heat dissipation device 1 can work under the rated power or overload, and the heat dissipation device can dissipate heat of the heat dissipation device with the maximum capacity, so that the heat dissipation device can be cooled to work normally.
Wherein the first power and the second power are different operating powers. Wherein the zero power signal is a low level signal, i.e. a 0V voltage signal. Wherein the first power signal, the second power signal and the third power signal are high level signals, which may be, for example, 3.7V.
As shown in fig. 5, the sampling unit 110 is a temperature sensor; the preset voltage providing unit 120 includes a first preset resistor R11, a second preset resistor R12 and a third preset resistor R13 connected in series to the analog ground, wherein the first preset resistor R11 is connected to the power supply. Voltage division is performed through a first preset resistor R11, a second preset resistor R12 and a third preset resistor R13, wherein a node of each preset resistor is provided with a voltage respectively, and the equivalent voltage of the node of the first preset resistor R11 and the node of the second preset resistor R12 are greater than the equivalent voltage of the node of the second preset resistor R12 and the node of the third preset resistor R13.
The frequency conversion unit 130 comprises a comparison module and a driving module, the comparison module comprises a first comparator U1 and a second comparator U2, the output end of the temperature sensor is connected with the forward input ends of the first comparator U1 and the second comparator U2, the node of the first preset resistor R11 and the node of the second preset resistor R12 are connected with the reverse input end of the second comparator U2, and the node of the second preset resistor R12 and the node of the third preset resistor R13 are connected with the reverse input end of the first comparator U1.
The driving module comprises a first driving triode Q11 and a second driving triode Q12 which are arranged in series, a collector of a first driving triode Q11 is connected with the heat dissipation device 140 and the power source in series, an output end of a first comparator U1 is connected with a base of a first driving triode Q11, the driving module further comprises a first frequency conversion resistor R21 and a second frequency conversion resistor R22, the first frequency conversion resistor R21 is connected with the collector of the first driving triode Q11, the second frequency conversion resistor R22 is arranged in parallel with a second driving triode Q12, two ends of a second frequency conversion resistor R22 are respectively connected with an emitter and a collector of a second driving triode Q12, and the emitter of the second driving triode Q12 is connected with an analog ground.
The purpose of providing a first preset voltage and a second preset voltage is achieved by dividing voltage through a first preset resistor R11, a second preset resistor R12 and a third preset resistor R13, wherein the first preset resistor is directly connected with a power supply, an equivalent voltage node of the second preset voltage is located between the first preset resistor R11 and the second preset resistor R12, and an equivalent voltage node of the first preset voltage is located between the second preset resistor R12 and the third preset resistor R13, so that the second preset voltage is larger than the first preset voltage, and the first preset voltage and the second preset voltage can be adjusted by changing resistance values of the first preset resistor R11, the second preset resistor R12 and the third preset resistor R13. When the voltage output by the temperature sensor is greater than the first preset voltage, the voltage at the positive input end of the first comparator is greater than the voltage at the negative input end, the first comparator outputs a high-level signal, at this time, the first driving triode Q11 is turned on, the voltage of the heat dissipation device 140 is the voltage divided by the first variable-frequency resistor R21 and the second variable-frequency resistor R22, and at this time, the working power of the heat dissipation device 140 is a. When the voltage output by the temperature sensor is greater than the second preset voltage, the voltage of the forward input end of the second comparator U2 is greater than the voltage of the reverse input end, the second comparator U2 outputs a high-level signal, at this time, the first driving triode Q11 and the second driving triode Q12 are simultaneously turned on, the voltage of the heat dissipation device 140 is the voltage divided by the first frequency conversion resistor R21, the working power of the heat dissipation device 140 is B, at this time, the second frequency conversion resistor R21 is short-circuited by the second driving triode Q12 and is not divided, at this time, the voltage on the heat dissipation device 140 is greater, the working power B is greater than the working power a, and the frequency conversion work of the heat dissipation device 140 is completed.
The sampling unit 110 can collect the temperature of the computer device and generate the detection voltage data of the analog quantity, wherein the temperature may be the temperature of the CPU, the temperature of the power module, and the like, and then detect the voltage to the frequency conversion unit 130, and the frequency conversion unit 130 controls the fan 12 to be out of operation, to operate according to the first power, or to operate according to the second power according to the value of the detection voltage, so as to achieve the purpose and effect of controlling the fan 12 to perform different operations. When the temperature in the computer is low, the heat sink 140 does not work, and noise is not generated. When the temperature in the computer tends to rise and the operation of the computer and the internal devices is not affected, the heat dissipation fan 12 operates at a low power according to the first power, and at this time, the fan 12 can dissipate heat without generating loud noise. When the temperature in the computer rises to affect the operation of the internal equipment of the computer, the heat radiation fan 12 operates at high power according to the second power, at the moment, the fan 12 operates at rated power or over-rated power, and at the moment, the rotating speed of the fan 12 is the fastest, so that the maximum heat radiation effect is achieved, but larger noise can be generated. The system can realize intelligent frequency conversion control of the heat dissipation equipment 140 to work according to the temperature in the computer, so that when the temperature of the computer is slightly higher than the normal temperature but does not influence the work of the equipment in the computer, the heat dissipation equipment 140 works with less work, larger noise is not generated, and the service life of the heat dissipation equipment 140 is longer.
As shown in fig. 6, the intelligent frequency conversion system further includes a frequency stabilization unit, one end of the frequency stabilization unit is connected to the frequency conversion unit 130, and the other end is connected to the heat dissipation device 140, and the frequency stabilization unit includes a first frequency stabilization unit 150, a second frequency stabilization unit 160, and a selection unit 170. The frequency stabilizing unit can stabilize the frequency, and its essence lies in stabilizing the input voltage at the heat sink 140, so that the heat sink 140 can stably operate.
When the frequency stabilization unit receives the zero power signal, the selection unit 170 controls the loop where the heat dissipation device 140 is located to be non-conductive, and at this time, the temperature in the computer is low, and the heat dissipation device 140 is not powered on to work.
When the frequency stabilization unit receives the first power signal, the selection unit 170 controls the loop where the heat dissipation device 140 is located to be conducted, and the heat dissipation device 140 operates according to the first power. At this time, the temperature inside the computer is close to the difficult working temperature of the internal devices, and the heat dissipation device 140 works with medium power, so that no large noise is generated.
When the frequency stabilization unit receives the second power signal, the selection unit 170 controls the loop where the heat dissipation device 140 is located to be conducted, and the heat dissipation device 140 operates according to the second power. At this time, the temperature in the computer is relatively high, which may affect the operation of the internal devices, such as the CPU, the power module, and the like, at this time, the heat dissipation device 140 operates according to the second power, and the heat dissipation device 140 operates at the rated power or the overload power, so that the maximum capability of performing heat dissipation processing on the devices in the computer is achieved.
The first frequency stabilization unit 150 includes a first operational amplifier U3, a first frequency stabilization transistor Q21, a first frequency stabilization resistor R41, and a second frequency stabilization resistor R42. The inverting input end of the first operational amplifier U3 is connected with the reference frequency input end, the output end of the first operational amplifier U3 is connected with the base of the first frequency stabilization triode Q21, the collector of the first frequency stabilization triode Q21 is connected with the high-level power supply, the emitter of the first frequency stabilization triode Q21 is connected with the first frequency stabilization resistor R41 and the second frequency stabilization resistor R42 in series and grounded, the node of the first frequency stabilization resistor R41 and the second frequency stabilization resistor R42 is connected with the forward input end of the first operational amplifier U3, the node of the emitter of the first frequency stabilization triode Q21 and the first frequency stabilization resistor R41 is connected with the series and grounded, and the emitter of the first frequency stabilization triode Q21 and the node of the first frequency stabilization resistor R41 are connected with the selection unit 170 and the coordination unit, respectively. The reference frequency input end comprises a first voltage-dividing resistor R31, wherein the first voltage-dividing resistor R31 is respectively connected with the inverting input end of the first operational amplifier U3 and the first frequency conversion resistor R21, and the first voltage-dividing resistor R31 collects the current generation voltage at the frequency conversion unit 130 to the inverting input end of the first operational amplifier.
The current generation voltage at the frequency conversion unit 130 is collected through the first voltage dividing resistor R31 and is transmitted to the reverse input end of the first operational amplifier U3, the input voltage is the first working target voltage of the heat dissipation device 140, the voltage at the node of the first frequency stabilization resistor R41 and the node of the second frequency stabilization resistor R42 is input through the forward input end of the first operational amplifier U3 to form a feedback voltage, and the first operational amplifier U3 can receive the feedback voltage constantly to adjust and stabilize the output voltage, so that the heat dissipation device 140 obtains the first stable working target voltage and is stabilized at the first power, and the heat dissipation device 140 is stable in working, not prone to aging and damage.
The second frequency stabilization unit 160 comprises a second operational amplifier U4, a second frequency stabilization triode Q22, a third frequency stabilization resistor R51 and a fourth frequency stabilization resistor R52; the inverting input end of the second operational amplifier U4 is connected with the reference frequency input end, the output end of the second operational amplifier U4 is connected with the base of the second frequency stabilization triode Q22, the collector of the second frequency stabilization triode Q22 is connected with a high-level power supply, the emitter of the second frequency stabilization triode Q22 is connected with the third frequency stabilization resistor R51 and the fourth frequency stabilization resistor R52 in series and grounded, and the node of the third frequency stabilization resistor R51 and the fourth frequency stabilization resistor R52 is connected with the forward input end of the second operational amplifier U4. The reference frequency input end comprises a second voltage-dividing resistor R32, wherein the second voltage-dividing resistor R32 is respectively connected with the inverting input end of the second operational amplifier U4 and the node of the first frequency conversion resistor R21 and the second frequency conversion resistor R22, and the current generated voltage at the frequency conversion unit 130 is collected through the second voltage-dividing resistor R32 and is sent to the inverting input end of the second operational amplifier U4.
The current generated voltage at the frequency conversion unit 130 is collected through the second voltage dividing resistor R32 and is transmitted to the reverse input end of the second operational amplifier U4, the input voltage is the second working target voltage of the heat dissipation device 140, the voltage at the node of the third frequency stabilization resistor R51 and the node of the fourth frequency stabilization resistor R52 is input through the forward input end of the second operational amplifier U4 to form a feedback voltage, and the second operational amplifier U4 can receive the feedback voltage to adjust and stabilize the output voltage constantly, so that the heat dissipation device 140 obtains the stable second working target voltage and is stabilized at the second power, and the heat dissipation device 140 is stable in working, and is not easy to age and damage.
The selection unit 170 includes a first switching transistor Q31 and a second switching transistor Q32, an emitter of the first switching transistor Q31 is connected to an emitter of the second switching transistor Q32, one end of a connection node between the emitter of the first switching transistor Q31 and the emitter of the second switching transistor Q32 is grounded in series with the first switching capacitor C1, and the other end of the connection node between the emitter of the first switching transistor Q31 and the emitter of the second switching transistor Q32 is grounded in series with the heat dissipation device 140. The purpose of switching can be played through first switching triode Q31 and second switching triode Q32, wherein first switching triode Q31 is connected with the input of first comparator U1, when first comparator U1 outputs high level signal, first switching triode Q31 switches on, first frequency stabilization unit 150 works this moment, when second comparator U2 outputs high level signal, second switching triode Q32 switches on, second frequency stabilization unit 160 works this moment. The first switching transistor Q31 and the second switching transistor Q32 are used to control the first frequency stabilization unit 150 or the second frequency stabilization unit 160 to operate. In a state where the first switching transistor Q31 and the second switching transistor Q32 are both turned on, the two are connected in parallel, so that the voltage of the heat dissipation device 140 will float between the two voltages, and the first voltage dividing resistor R31 and the second voltage dividing resistor R32 can be further changed according to the power received by the actual device, so that the heat dissipation device 140 operates at two suitable voltages.
The frequency stabilizing unit plays a role in stabilizing the voltage input by the heat dissipation device 140, and in one circuit, if devices such as the heat dissipation device 140 have a plurality of control frequency instructions, the work of the devices is relatively unstable, which also leads to the reduction of the service life of the heat dissipation device 140.
In one embodiment, the first preset voltage and the second preset voltage are obtained by automatic calculation according to the computer internal temperature collected by the sampling unit and a computer internal circuit, wherein the specific steps include:
step A1: obtaining a first preset voltage U1 according to equation (1):
wherein U1 represents a first predetermined voltage, USDenotes the input voltage of the operator, i denotes the ith node of the internal circuit of the computer, N denotes the total number of nodes of the internal circuit of the computer, and muiExpressing the ratio of the number of the branches converged into the ith node by the internal circuit of the computer to the total number of the branches in the internal circuit of the computer, SiThe temperature value collected by the second sampling unit of the ith node of the internal circuit of the computer is represented, R represents the sum of reciprocals of resistance values of all resistors on a branch circuit of the ith node converged by the internal circuit of the computer, and exp represents the power of a natural logarithm e.
Wherein U isSThe input voltage of the operator is represented by any value, such as 5V, 6V and the like, and the values of the first preset voltage and the second preset voltage are increased, and the values can be adjusted according to the attribute and the working place of the actual computer. For example, if there are 3 internal computer lines, then there is a node and N is 1, then SiIs the temperature value of the node, mu, collected by the temperature sensoriThe ratio of 3 branches converged into the node by the computer internal circuit to 3 total branches in the computer internal circuit is 3/3 ═ 1, and R is the sum of reciprocal of resistance values of all resistors on the 3 branches converged into the node by the computer internal circuit, namely (
Where R1, R2, and R3 are the total resistances of the 3 branches, respectively), and the values are substituted into the formula (1), so as to obtain the value of the first preset voltage U1.
Step A2: obtaining a second preset voltage U2 according to equation (2):
where U2 represents a second preset voltage, t represents the time of computer operation, Si(t) represents a temperature value function collected by the ith node temperature sensor of the internal circuit of the computer in the time t when the computer is operated,
the second derivative of the temperature value function collected by the ith node temperature sensor representing the internal circuit of the computer in the time t when the computer runs,
and the first derivative of the temperature value function acquired by the ith node temperature sensor of the internal circuit of the computer in the time t when the computer is operated is represented to the time t.
For example, if there are 3 internal computer lines, then there will be one node and N ═ 1, if S isiThe value of (t) is a function of the temperature value acquired within the time t when the node computer operates, and if the temperature value acquired within the time t when the node computer operates is unchanged, the temperature value is acquired
μiThe ratio of 3 branches of the computer internal line converged into the node to 3 total branches of the computer internal line is 3/3-1, and the value of U2 is equal to the value of U1 in this case.
In one embodiment, the frequency conversion unit outputs the power signal according to the following steps:
obtaining a W-th power signal required to be output according to the formula (3):
wherein W represents a W-th power signal required to be output, U represents the detection voltage of the output analog quantity, and U represents a step function;
outputting a zero power signal of a low level when W is 0, outputting a first power signal of a high level when W is 1, and outputting a second power signal of a high level when W is 2 by formula (3);
when U is turned<When U1 is right
When W is 0, outputting a zero-power signal with low level;
when U1<U<When U2 is right
When W is 1, outputting a first power signal with high level;
when U is turned>When U2 is right
Then W becomes 2 and the second power signal of high level is output.
The beneficial effects of the above technical scheme are: through the temperature that computer inner line was gathered to second sampling unit combines the input voltage of staff's input, obtains first default voltage and second default voltage, and then obtains required power signal, be the process in order to guarantee whole automatic calculation can form the closed loop and can utilize the judgement of voltage in real time to carry out the control of power, thereby change the temperature of circuit for a great weight, thereby improve the reliability of frequency conversion, and utilize the formula to judge output voltage, the work efficiency of frequency conversion has been improved, and but the practicality.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (7)
1. The intelligent control computer is characterized by comprising an intelligent frequency conversion system and further comprising the following structures:
integrating all components of the intelligent frequency conversion system on a circuit board (2), wherein the voltage input end of the circuit board (2) is connected with a power module of a computer;
determining that a computer using the intelligent frequency conversion system is any one of a notebook computer or a desktop computer;
if the device using the intelligent frequency conversion system is a desktop computer, the heat dissipation device (1) is set to be of a first size, the circuit board (2) is fixed with the heat dissipation device (1), and the heat dissipation device (1) is fixed with a shell of the desktop computer;
if the device using the intelligent frequency conversion system is a notebook computer, the heat dissipation equipment (1) is set to be of a second size, the circuit board (2) is fixed with the heat dissipation equipment (1), and the heat dissipation equipment (1) is fixed with a shell of the notebook computer;
the heat dissipation device (1) is a fan (12);
the sampling unit (110) is used for collecting the internal temperature of the computer and outputting the detection voltage of the analog quantity;
a preset voltage providing unit (120) for providing a first preset voltage and a second preset voltage of an analog quantity;
a frequency conversion unit (130) connected to the sampling unit (110) for receiving the detection voltage,
when the detection voltage is smaller than a first preset voltage, outputting a low-level zero-power signal;
when the detection voltage is greater than the first preset voltage and less than the second preset voltage, outputting a first power signal with a high level;
when the detection voltage is greater than a second preset voltage, outputting a second power signal with a high level;
the heat dissipation device (140) does not work under the control of a zero power signal, the heat dissipation device (140) works under the control of a first power signal according to a first power, the heat dissipation device (140) works under the control of a second power signal according to a second power, and the first power and the second power are different working powers;
the sampling unit (110) is a temperature sensor;
the preset voltage providing unit (120) comprises a first preset resistor, a second preset resistor and a third preset resistor which are connected in series and are arranged in a simulated grounding mode;
the frequency conversion unit (130) comprises a comparison module and a driving module, the comparison module comprises a first comparator and a second comparator, the output end of the temperature sensor is connected with the positive input ends of the first comparator and the second comparator, the node of the first preset resistor and the second preset resistor is connected with the reverse input end of the second comparator, and the node of the second preset resistor and the third preset resistor is connected with the reverse input end of the first comparator;
the driving module comprises a first driving triode and a second driving triode which are arranged in series, wherein a collector of the first driving triode is connected with a heat dissipation device (140) and a power supply in series, an output end of a first comparator is connected with a base of the first driving triode, the driving module further comprises a first variable frequency resistor and a second variable frequency resistor, the first variable frequency resistor is connected with the collector of the first driving triode, the second variable frequency resistor is connected with the second driving triode in parallel, two ends of the second variable frequency resistor are respectively connected with an emitter and a collector of the second driving triode, and the emitter of the second driving triode is connected with an analog ground;
obtaining a first preset voltage U1 according to formula (1):
wherein U1 denotes a first preset voltage, USRepresenting the input voltage of the operator, i representing the ith node of the internal circuit of the computer, N representing the total number of nodes of the internal circuit of the computer, muiExpressing the ratio of the number of the branches converged into the ith node by the internal circuit of the computer to the total number of the branches in the internal circuit of the computer, SiThe temperature value collected by the second sampling unit of the ith node of the internal circuit of the computer is represented, R represents the sum of reciprocals of resistance values of all resistors on a branch circuit of the ith node converged by the internal circuit of the computer, and exp represents the power of a natural logarithm e;
obtaining a second preset voltage U2 according to equation (2):
where U2 represents a second preset voltage, t represents the time of computer operation, Si(t) a function of temperature values collected by the ith node temperature sensor of the internal circuit of the computer in the time t when the computer is operated,
the second derivative of the temperature value function collected by the ith node temperature sensor representing the internal circuit of the computer in the time t when the computer runs,
and the first derivative of the temperature value function acquired by the ith node temperature sensor of the internal circuit of the computer in the time t when the computer is operated is represented to the time t.
2. The intelligent control computer of claim 1,
the heat dissipation device (1) comprises a fan (12) and a fixing frame (11), and further comprises the following structures:
fixing a fan (12) by a fixing frame (11), fixing a circuit board (2) and the fixing frame (11), connecting a power output end of the circuit board (2) with a power input end of the fan (12), and connecting the power input end of the circuit board (2) with any one of a power module of a computer, a mains supply or a storage battery;
a fixing frame (11) is fixed to a casing of a computer so that a fan (12) faces either a CPU or a power supply module.
3. The intelligent control computer of claim 1,
a main board is arranged in the computer, and the main board is any one of a four-layer board or a six-layer board;
when the mainboard is a four-layer board, the mainboard comprises a signal layer, a grounding layer, a power supply layer and a secondary signal layer;
when the mainboard is a six-layer board, the mainboard comprises a signal layer, a grounding layer, a power layer, a secondary signal layer, an auxiliary power layer and a middle signal layer;
the mainboard is also provided with any one or more of an expansion slot, a hard disk interface, a floppy drive interface, a COM interface, a PS/2 interface, a USB interface, an LPT interface, a MIDI interface and a SATA interface;
the sampling unit (110) is connected with the USB interface, the sampling unit (110) collects temperature data in real time and transmits the temperature data to the CPU through the USB interface, and the CPU controls the display to display the temperature data.
4. The intelligent control computer of claim 1,
the intelligent frequency conversion system further comprises a frequency stabilization unit, one end of the frequency stabilization unit is connected with the frequency conversion unit (130), the other end of the frequency stabilization unit is connected with the heat dissipation device (140), and the frequency stabilization unit comprises a first frequency stabilization unit (150), a second frequency stabilization unit (160), a coordination unit and a selection unit (170);
when the frequency stabilization unit receives a zero-power signal, the selection unit (170) controls a loop where the heat dissipation equipment (140) is located to be not conducted, and the heat dissipation equipment (140) is not electrified to work;
when the frequency stabilization unit receives the first power signal, the selection unit (170) controls the conduction of a loop where the heat dissipation equipment (140) is located, and the heat dissipation equipment (140) works according to the first power;
when the frequency stabilization unit receives the second power signal, the selection unit (170) controls the conduction of a loop where the heat dissipation device (140) is located, and the heat dissipation device (140) works according to the second power.
5. The intelligent control computer of claim 4,
the first frequency stabilization unit (150) comprises a first operational amplifier, a first frequency stabilization triode, a first frequency stabilization resistor, a second frequency stabilization resistor and a first frequency stabilization capacitor;
the reverse input end of the first operational amplifier is connected with the reference frequency input end, the output end of the first operational amplifier is connected with the base electrode of the first frequency stabilization triode, the collector electrode of the first frequency stabilization triode is connected with the high-level power supply, the emitter electrode of the first frequency stabilization triode is in series connection with the first frequency stabilization resistor and the second frequency stabilization resistor in a grounding mode, the node of the first frequency stabilization resistor and the second frequency stabilization resistor is connected with the forward input end of the first operational amplifier, the node of the emitter electrode of the first frequency stabilization triode and the first frequency stabilization resistor is in series connection with the first frequency stabilization capacitor in a grounding mode, and the emitter electrode of the first frequency stabilization triode and the node of the first frequency stabilization resistor are respectively connected with the selection unit (170) and the coordination unit.
6. The intelligent control computer of claim 4,
the second frequency stabilization unit (160) comprises a second operational amplifier, a second frequency stabilization triode, a third frequency stabilization resistor, a fourth frequency stabilization resistor and a second frequency stabilization capacitor;
the reverse input end of the second operational amplifier is connected with the reference frequency input end, the output end of the second operational amplifier is connected with the base electrode of a third frequency stabilization triode, the collector electrode of the third frequency stabilization triode is connected with a high-level power supply, the emitter electrode of the second frequency stabilization triode is in series connection with a third frequency stabilization resistor and a fourth frequency stabilization resistor in a grounding mode, the node of the third frequency stabilization resistor and the node of the fourth frequency stabilization resistor are connected with the forward input end of the second operational amplifier, the node of the emitter electrode of the second frequency stabilization triode and the node of the third frequency stabilization resistor are in series connection with a second frequency stabilization capacitor in a grounding mode, and the node of the emitter electrode of the second frequency stabilization triode and the node of the third frequency stabilization resistor are connected with a selection unit (170).
7. The intelligent control computer of claim 4,
the selection unit (170) comprises a first switching triode and a second switching triode, an emitting electrode of the first switching triode is connected with an emitting electrode of the second switching triode, one end of a connection node of the emitting electrode of the first switching triode and the emitting electrode of the second switching triode is grounded in series with the first switching capacitor, and the other end of the connection node of the emitting electrode of the first switching triode and the emitting electrode of the second switching triode is grounded in series with the heat dissipation device (140).
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