CN203673427U - Cooling fan intelligent control system applied to PC-BASED automation equipment - Google Patents
Cooling fan intelligent control system applied to PC-BASED automation equipment Download PDFInfo
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- CN203673427U CN203673427U CN201320886954.8U CN201320886954U CN203673427U CN 203673427 U CN203673427 U CN 203673427U CN 201320886954 U CN201320886954 U CN 201320886954U CN 203673427 U CN203673427 U CN 203673427U
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- cooling fan
- temperature
- humidity sensor
- control system
- automation equipment
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Abstract
The utility model discloses a cooling fan intelligent control system applied to PC-BASED automation equipment, and relates to cooling fan control systems. The cooling fan intelligent control system applied to the PC-BASED automation equipment structurally comprises at least one cooling fin module. Each cooling fin module comprises a temperature and humidity sensor, a cooling fan and a driver element used for driving the corresponding cooling fan. The cooling fan intelligent control system further comprises a control unit used for controlling the driver elements and a switching power supply used for supplying electricity to the cooling fans. Each temperature and humidity sensor is connected with the control unit, each temperature and humidity sensor collects the temperature value of the position where the temperature and humidity sensor is placed and transmits the temperature value to the control unit, and the control unit generates PWM control signals according to the temperature values and the preset temperature values of the positions where the temperature and humidity sensors are placed and transmits the control signals to the driver elements in the cooling fin modules including the temperature and humidity sensors so that the temperature values where the temperature and humidity sensors are placed tend to be the preset temperature values. The cooling fan intelligent control system further comprises an interface unit used for being connected with a storage device or an IPC in the PC-BASED automation equipment.
Description
Technical field
The utility model relates to a kind of cooling fan control system, is specifically related to a kind of cooling fan intelligent control system of the PC-BASED of being applied to automation equipment.
Background technology
PC-BASED technology is the application technology of a PC, use exactly PC to gather the physical quantity data in real world, show data, save data, deal with data, printing reports etc. with PC, also use PC to relevant actuating equipment output control signal, to reach the regulating and controlling to equipment or whole system simultaneously.PC-BASED automation equipment is widely used in industrial automation production, it adopts industrial computer to be used as main control system, industrial computer has important computing machine attribute and feature, it has CPU, hard disk, internal memory, peripheral hardware and interface, also has operating system, control network and agreement, computing power, close friend's man-machine interface simultaneously.But industrial computer is also very high for the requirement of extendability, and the design of its interface need to meet specific external unit, therefore in most cases industrial computer needs customization separately.
Thereby when some component working of PC-BASED automation equipment, can produce a large amount of heats makes its temperature soaring, normally work and increase the service life in order to ensure PC-BASED automation equipment, will near the parts of easily heating, cooling fan be set and carry out temperature control, traditional cooling fan is the object of always moving to reach heat radiation with firm power, but, the heating situation of each heat generating components in PC-BASED automation equipment is not identical, some parts thermal value is large, some is smaller, in addition, due to the difference in season, the temperature rise situation of each heat generating components also can change to some extent, the such firm power of traditional cooling fan moves always, can cause on the one hand the waste of the energy, on the other hand, in the time that the temperature of the large parts of some thermal value is higher, the power of cooling fan but can not improve to strengthen cooling-down effect equally, so also there is in some cases the not good problem of cooling-down effect in traditional cooling fan.
Summary of the invention
The purpose of this utility model is to provide and a kind ofly saves energy consumption, good cooling effect, convenient multiple cooling fans carried out to the centralized control convenient cooling fan intelligent control system that is applied to PC-BASED automation equipment of communicating by letter that is connected with industrial computer simultaneously.
For achieving the above object, the utility model provides following technical scheme.
Be applied to the cooling fan intelligent control system of PC-BASED automation equipment, comprise at least one cooling fan module, each cooling fan module comprises Temperature Humidity Sensor, cooling fan and for driving the driver element of this cooling fan, this cooling fan intelligent control system also comprises the control module for controlling described driver element and the Switching Power Supply for powering to described cooling fan, each Temperature Humidity Sensor is connected with control module respectively, the temperature value that Temperature Humidity Sensor gathers its present position sends control module to, the driver element that control module sends in the cooling fan module that comprises this Temperature Humidity Sensor according to the preset temperature value generation pwm control signal of this temperature value and this Temperature Humidity Sensor present position is tending towards preset temperature value with the temperature value of controlling this Temperature Humidity Sensor present position, this cooling fan intelligent control system also comprises the interface unit for being connected with the industrial computer of memory device or described PC-BASED automation equipment, interface unit is connected with control module, the driver element circuit structure of each cooling fan module is identical, each driver element comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, optocoupler U1 and gate-controlled switch, input end of optocoupler U1 is via resistance R 1 external power supply, another input end is connected to receive described pwm control signal with control module, output terminal of optocoupler U1 is via resistance R 2 external power supplys, another output head grounding, gate-controlled switch is provided with two conduction terminal and one for controlling the control end of the break-make between described two conduction terminal, the control end of gate-controlled switch is connected in the contact of optocoupler U1 and resistance R 2 via resistance R 3, conduction terminal of gate-controlled switch is via resistance R 5 ground connection, an input end of the cooling fan of another this drive unit drives of conducting termination, the power output end of Switching Power Supply described in another input termination of this cooling fan, resistance R 4 is connected between the control end and gate-controlled switch and the contact of this cooling fan of gate-controlled switch.
Wherein, control module is based on AVR chip microcontroller.
Wherein, interface unit is realized based on CP2012 chip.
Wherein, described Temperature Humidity Sensor is DHT21 Temperature Humidity Sensor, and the model of optocoupler U1 is TLP621, and gate-controlled switch is metal-oxide-semiconductor or relay.
Wherein, gate-controlled switch is that model is the metal-oxide-semiconductor of IRF7201.
The beneficial effects of the utility model are: Temperature Humidity Sensor is set and gathers the temperature of the position that monitoring need to lower the temperature and feed back to control module, control module is according to the power of the feedback generation pwm control signal control cooling fan of default temperature and Temperature Humidity Sensor, the actual conditions of the position that the mode of employing FEEDBACK CONTROL can be lowered the temperature as required decide the power of cooling fan, when temperature is higher, raise the power of cooling fan to reach better cooling-down effect, when temperature is lower, can reduce the power of cooling fan and even close cooling fan, to save energy consumption, each cooling fan module is all connected to same control module, conveniently all cooling fans are carried out to centralized control, in addition, arranging of interface unit facilitates control module to be connected communication with industrial computer, interface unit can customize according to the interface case of industrial computer, has greatly strengthened the utility model and be applied to the expansion of the cooling fan intelligent control system of PC-BASED automation equipment.
Brief description of the drawings
Fig. 1 is the structured flowchart of the cooling fan intelligent control system that is applied to PC-BASED automation equipment of the present utility model.
Fig. 2 is the circuit theory diagrams of driver element.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.
As shown in Figure 1, the cooling fan intelligent control system that is applied to PC-BASED automation equipment of the present utility model, comprise at least one cooling fan module, the large parts annex of each thermal value of PC-BASED automation equipment all arranges cooling fan module described at least one and lowers the temperature, the size of N in Fig. 1, it is the number of cooling fan module, determined by control module, control module is built by different control chips, and the number of cooling fan module is just determined by the interface quantity of described control chip.Each cooling fan module comprises Temperature Humidity Sensor, cooling fan and for driving the driver element of this cooling fan, in the present embodiment, described Temperature Humidity Sensor is DHT21 Temperature Humidity Sensor, this cooling fan intelligent control system also comprises the control module for controlling described driver element and the Switching Power Supply for powering to described cooling fan, each Temperature Humidity Sensor is connected with control module respectively, the temperature value that Temperature Humidity Sensor gathers its present position sends control module to, the driver element that control module sends in the cooling fan module that comprises this Temperature Humidity Sensor according to the preset temperature value generation pwm control signal of this temperature value and this Temperature Humidity Sensor present position is tending towards preset temperature value with the temperature value of controlling this Temperature Humidity Sensor present position, this cooling fan intelligent control system also comprises the interface unit for being connected with the industrial computer of memory device or described PC-BASED automation equipment, interface unit is connected with control module.Temperature Humidity Sensor is set to be gathered the temperature of the position that monitoring need to lower the temperature and feeds back to control module, control module is according to the power of the feedback generation pwm control signal control cooling fan of default temperature and Temperature Humidity Sensor, the actual conditions of the position that the mode of employing FEEDBACK CONTROL can be lowered the temperature as required decide the power of cooling fan, when temperature is higher, raise the power of cooling fan to reach better cooling-down effect, when temperature is lower, can reduce the power of cooling fan and even close cooling fan, to save energy consumption, each cooling fan module is all connected to same control module, conveniently all cooling fans are carried out to centralized control, in addition, arranging of interface unit facilitates control module to be connected communication with industrial computer, interface unit can customize according to the interface case of industrial computer, greatly strengthen the expansion that the utility model is applied to the cooling fan intelligent control system of PC-BASED automation equipment, this is also for the cooling fan intelligent control system that uses the PC-BASED of being applied to automation equipment of the present utility model is to the PC-BASED automation equipment upgrading cooling fan control system that the uses traditional cooling fan condition of providing convenience.
In the present embodiment, control module is based on AVR chip microcontroller, AVR single-chip microcomputer is with low cost, therefore dragged down the cost of the cooling fan intelligent control system of the PC-BASED of being applied to automation equipment of the present utility model, the function of AVR single-chip microcomputer is also more various, can be by AVR mcu programming be realized to various control scheme, such as setting cooling fan start-up temperature threshold value, the temperature collecting when Temperature Humidity Sensor just starts corresponding cooling fan while reaching start-up temperature threshold value, and for example set warning shutoff temperature threshold value, the temperature collecting when one of them Temperature Humidity Sensor reaches corresponding warning shutoff temperature threshold value alarm and sends shutdown request signal to industrial computer.Interface unit is realized based on CP2012 chip, the interface unit of realizing based on CP2012 chip can provide USB interface, USB interface is to apply interface very widely, by USB interface, the cooling fan intelligent control system of the PC-BASED of being applied to automation equipment of the present utility model can be connected communication with most of industrial computer.
The driver element circuit structure of each cooling fan module is identical, as shown in Figure 2, each driver element comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, optocoupler U1 and gate-controlled switch, the model of optocoupler U1 is TLP621, gate-controlled switch is metal-oxide-semiconductor or relay, in the present embodiment, as shown in Figure 2, the metal-oxide-semiconductor Q1 that employing model is IRF7201 is as gate-controlled switch.Input end of optocoupler U1 is via resistance R 1 external power supply, another input end is connected to receive described pwm control signal with control module, output terminal of optocoupler U1 is via resistance R 2 external power supplys, another output head grounding, metal-oxide-semiconductor Q1 grid is connected in the contact of optocoupler U1 and resistance R 2 via resistance R 3, source electrode is via resistance R 5 ground connection, drain electrode connects an input end of the cooling fan FAN of this drive unit drives, the power output end AVCC of Switching Power Supply described in another input termination of this cooling fan FAN, resistance R 4 is connected between the grid and metal-oxide-semiconductor Q1 and the contact of this cooling fan FAN of metal-oxide-semiconductor Q1.The grid that the pwm control signal that control module sends acts on metal-oxide-semiconductor Q1 after light-coupled isolation makes the level of grid of metal-oxide-semiconductor Q1 with the frequency change of this pwm control signal, thereby between the source electrode of metal-oxide-semiconductor Q1 and drain electrode also with the frequency break-make of pwm control signal, the just power of controlled cooling fan FAN processed.
Finally should be noted that; above embodiment is only in order to illustrate the technical solution of the utility model; but not restriction to the utility model protection domain; although the utility model has been done to explain with reference to preferred embodiment; those of ordinary skill in the art is to be understood that; can modify or be equal to replacement the technical solution of the utility model, and not depart from essence and the scope of technical solutions of the utility model.
Claims (5)
1. be applied to the cooling fan intelligent control system of PC-BASED automation equipment, it is characterized in that: comprise at least one cooling fan module, each cooling fan module comprises Temperature Humidity Sensor, cooling fan and for driving the driver element of this cooling fan, this cooling fan intelligent control system also comprises the control module for controlling described driver element and the Switching Power Supply for powering to described cooling fan, each Temperature Humidity Sensor is connected with control module respectively, the temperature value that Temperature Humidity Sensor gathers its present position sends control module to, the driver element that control module sends in the cooling fan module that comprises this Temperature Humidity Sensor according to the preset temperature value generation pwm control signal of this temperature value and this Temperature Humidity Sensor present position is tending towards preset temperature value with the temperature value of controlling this Temperature Humidity Sensor present position, this cooling fan intelligent control system also comprises the interface unit for being connected with the industrial computer of memory device or described PC-BASED automation equipment, interface unit is connected with control module, the driver element circuit structure of each cooling fan module is identical, each driver element comprises resistance R 1, resistance R 2, resistance R 3, resistance R 4, resistance R 5, optocoupler U1 and gate-controlled switch, input end of optocoupler U1 is via resistance R 1 external power supply, another input end is connected to receive described pwm control signal with control module, output terminal of optocoupler U1 is via resistance R 2 external power supplys, another output head grounding, gate-controlled switch is provided with two conduction terminal and one for controlling the control end of the break-make between described two conduction terminal, the control end of gate-controlled switch is connected in the contact of optocoupler U1 and resistance R 2 via resistance R 3, conduction terminal of gate-controlled switch is via resistance R 5 ground connection, an input end of the cooling fan of another this drive unit drives of conducting termination, the power output end of Switching Power Supply described in another input termination of this cooling fan, resistance R 4 is connected between the control end and gate-controlled switch and the contact of this cooling fan of gate-controlled switch.
2. the cooling fan intelligent control system that is applied to PC-BASED automation equipment according to claim 1, is characterized in that: control module is based on AVR chip microcontroller.
3. the cooling fan intelligent control system that is applied to PC-BASED automation equipment according to claim 1, is characterized in that: interface unit is realized based on CP2012 chip.
4. the cooling fan intelligent control system that is applied to PC-BASED automation equipment according to claim 1, it is characterized in that: described Temperature Humidity Sensor is DHT21 Temperature Humidity Sensor, the model of optocoupler U1 is TLP621, and gate-controlled switch is metal-oxide-semiconductor or relay.
5. the cooling fan intelligent control system that is applied to PC-BASED automation equipment according to claim 4, is characterized in that: gate-controlled switch is that model is the metal-oxide-semiconductor of IRF7201.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886954.8U CN203673427U (en) | 2013-12-31 | 2013-12-31 | Cooling fan intelligent control system applied to PC-BASED automation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886954.8U CN203673427U (en) | 2013-12-31 | 2013-12-31 | Cooling fan intelligent control system applied to PC-BASED automation equipment |
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| CN203673427U true CN203673427U (en) | 2014-06-25 |
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| CN201320886954.8U Expired - Fee Related CN203673427U (en) | 2013-12-31 | 2013-12-31 | Cooling fan intelligent control system applied to PC-BASED automation equipment |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405672A (en) * | 2014-12-19 | 2015-03-11 | 浙江比洛德传动技术有限公司 | Intelligent fan control device applicable to vehicle cooling system |
| CN104454617A (en) * | 2014-12-31 | 2015-03-25 | 四川长虹欣锐科技有限公司 | Multi-path alternating-current fan controller |
| CN111061317A (en) * | 2019-12-20 | 2020-04-24 | 深圳市奥拓电子股份有限公司 | LED display controller and safety monitoring circuit thereof |
| CN111075745A (en) * | 2019-12-13 | 2020-04-28 | 苏州浪潮智能科技有限公司 | Server fan regulation and control method and system based on total system current |
-
2013
- 2013-12-31 CN CN201320886954.8U patent/CN203673427U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104405672A (en) * | 2014-12-19 | 2015-03-11 | 浙江比洛德传动技术有限公司 | Intelligent fan control device applicable to vehicle cooling system |
| CN104454617A (en) * | 2014-12-31 | 2015-03-25 | 四川长虹欣锐科技有限公司 | Multi-path alternating-current fan controller |
| CN111075745A (en) * | 2019-12-13 | 2020-04-28 | 苏州浪潮智能科技有限公司 | Server fan regulation and control method and system based on total system current |
| CN111061317A (en) * | 2019-12-20 | 2020-04-24 | 深圳市奥拓电子股份有限公司 | LED display controller and safety monitoring circuit thereof |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140625 Termination date: 20181231 |