CN205277890U - Brushless electron fan governor - Google Patents
Brushless electron fan governor Download PDFInfo
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- CN205277890U CN205277890U CN201521080341.0U CN201521080341U CN205277890U CN 205277890 U CN205277890 U CN 205277890U CN 201521080341 U CN201521080341 U CN 201521080341U CN 205277890 U CN205277890 U CN 205277890U
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Abstract
The utility model discloses a brushless electron fan governor, including microprocessor, power supply handle circuit, incoming signal treatment circuit, output signal treatment circuit, communication circuit, temperature signal circuit, drive and protection circuit. The utility model discloses contains the multiple entry end, through handling and operate temperature signal and incoming signal, output PWM or DA signal to brushless electron fan, make the corresponding change of drive power of brushless electron fan, the rotational speed of fan is along with the change, cooling system's cooling effect has been changed, each coolant of support vehicles keeps under best operating temperature, thereby improve engine and equipment's work efficiency, the life of system has been increased, reach the energy saving and emission reduction's of vehicle mesh.
Description
Technical field
This utility model relates to a kind of brushless electronic fan governor.
Background technology
Vehicle and engineering machinery all can produce substantial amounts of heat in the process of work. Change due to working environment and operating mode, also corresponding change can be there is in the heat produced, in order to keep the properly functioning of equipment, generally adopt various coolers or heat exchanger, cooling fan is adopted to force the mode of cooling to distribute heat in environment, so that each device is maintained in the working range of normal temperature. Traditional cooling system, its cooling fan is normally mounted on electromotor, the change of rotation speed of the fan is to be carried out respective change by the change of engine speed, cooling effect is directly relevant to the rotating speed of electromotor, thus occurring that cooling system can not meet the heat transfer requirements of all operating modes of system, the electromotor often making vehicle and engineering machinery and the system equipment needing cooling produce overheated or surfusion. It cannot be guaranteed that system always works in the operating temperature of the best, cause the life-span of shortening system or parts, increase the problem such as energy consumption, reduction work efficiency.
At present, axial fan controls mainly belt transmission, silicon oil clutch, three kinds of modes of electromagnetic clutch, and three kinds of modes are all subject to the restriction of cabin space, and cooling radiator can only installation parallel with electromotor. And it is mechanically connected with the belt pulley of electromotor. Cause the shortcomings such as poor, the maintainability performance difference of maintainability. Meanwhile, pining down of engine speed also it is subject to. Wanting consumption of engine energy relatively big when there is slow-speed of revolution high torque, cooling radiator heat-dissipation usefulness to improve. And engine speed is involved by the rotating ratio of belt pulley with cooling fan. So when also there will be low engine speeds, the rotating speed of cooling fan can not meet heat radiation necessary requirement.
Utility model content
The purpose of this utility model is the deficiency controlled for the above fan for vehicle, a kind of brushless electronic fan governor is provided, coordinate corresponding fan, wire harness and temperature sensor, achieve the infinitely variable speeds of fan, thus controlling the heat dissipation capacity of each medium in cooling system, making the various generation heats such as the electromotor of vehicle, pressure charging system, machine oil and needing the system equipment of cooling to maintain optimum working temperature. This utility model adopts the following technical scheme that in order to achieve the above object
The technical scheme that this utility model provides is: a kind of brushless electronic fan governor, including microprocessor, power supply processing circuit, input signal processing circuit, output signal processing circuit, telecommunication circuit, temperature signal circuit, driving and protection circuit. Power supply processing circuit output DC5V power supply is connected with microprocessor, output input signal, telecommunication circuit, temperature signal circuit, driving and protection circuit respectively. Power supply processing circuit output DC15V power supply is connected with driving and protection circuit. Input signal processing circuit, output signal processing circuit, telecommunication circuit, temperature signal circuit, driving and protection circuit are connected with microprocessor respectively. It is provided with signaling interface in input signal processing circuit, output signal processing circuit. The operations such as the resistance signal of temperature sensor is acquired by temperature signal circuit, conversion process, are transformed into digital signal and are input in microprocessor. Microprocessor carries out processing according to the program write, computing; calculate PWM value or the DA value of corresponding fan; feature according to brushless electronic fan exports PWM value or DA value; this signal function is driving and on protection circuit; brushless electronic fan is made to change the rotating speed of fan according to the driving force size driving and protecting circuit; thus changing the air quantity of cooling system, make the radiating effect of refrigerating module that corresponding change to occur, thus have adjusted the temperature of cooling medium. Because pwm signal and DA signal are continuously adjustable, therefore drive and the driving force of protection circuit is also continuous variable, it is achieved thereby that the stepless shift function of fan. When controller detects input or part of cooling system occurs abnormal, the trouble lamp instruction of the output signal processing circuit of controller is reported to the police, controller drives fan full speed running by maximum drive ability, it is ensured that the cooling system work of vehicle is unlikely to overheated and damages. When controller breaks down, output signal processing circuit no signal i.e. low level drive relay circuit work, make fan directly be connected with the power supply of controller input. Ensure that the full speed running of fan, make cooling system work by maximum heat-sinking capability.
Described power supply processing circuit adopts special surge voltage straining element, special lightning protection element, vehicle throw load protection element and from extensive formula electric fuse, it is ensured that the reliability of controller power source. Meanwhile, have employed switching power source chip, the voltage input of wide scope complies with multiple occasion different condition instructions for use. The driving power supply of microprocessor and interlock circuit and driving and protection circuit separate design, the capacity of resisting disturbance of raising controller. The power supply that switching power source chip output and circuit use have employed DC-DC isolating chip, it is ensured that the interference of prime input does not reach rear class. Improve the unfailing performance of controller. The power supply processed by above power supply processing circuit has anti-reverse, against short-circuit, anti-high voltage electrostatic discharge (ESD) and heat protection function. It is suitable for harsh and unforgiving environments and power supply instructions for use that vehicle uses.
Described temperature signal circuit include ECTS, charge air cooler temperature sensor, motor temperature sensor and air conditioner temperature sensor, environment temperature sensor, oil temperature sensor wherein one or more. Meanwhile, the temperature signal of other resistor-type and voltage-type can be inputted. Resistance signal can be positive temperature coefficient (PTC) resistance or negative temperature system (NTC) resistance.
Described input signal processing circuit has generator signal input interface, tach signal input interface, strong cold switch input interface and other reserved signal input interface; Input signaling interface can be the working state signal of electronic water pump, it is also possible to the signal of incoming frequency. Microprocessor and input interface take the mode that light Rhizoma Nelumbinis isolates, it is ensured that its reliability. Microprocessor can to the state of input interface and diagnosing malfunction.
Described telecommunication circuit is containing serial ports RS232 telecommunication circuit and CAN communication circuit, communicated by the RS232 debugging with PC or mobile equipment and monitoring software, monitored constantly by software, the duty of each circuit of recording controller, take, by software readable, the parameter that controller is arranged. The equipment instrument of CAN communication mouth and other this class interface carries out communication, can be monitored and debugging control device by the software of equipment instrument. Because CAN communication interface have employed light Rhizoma Nelumbinis isolation method, it is ensured that the fault of line-hit and equipment instrument causes the damage of CAN communication interface.
Described output signal processing circuit has trouble lamp, relay output interface and other reserved output signaling interface. When microprocessor monitors to interface fault, trouble lamp indicates. When controller breaks down, the controlled stage of controller internal relay output is pulled low level, and relay normally open contact closes. Fans drive port is forced the power on vehicle, makes fan full speed running, it is ensured that the uncontrolled device fault of each heat-sink unit of vehicle affects and stops operation.
Described driving and protection circuit are containing PWM output and DA output circuit, and PWM output and DA output circuit are taken anti-counterattack, overvoltage crowbar. Can according to controlled fan characteristics, PWM frequency can be changed by the program that microprocessor is write and adjust to meet being controlled fan requirement.
Compared with prior art, this utility model has the advantage that
Accompanying drawing explanation
Accompanying drawing described herein is used for providing being further appreciated by of the present utility model, constitutes the part of the application, is not intended that improper restriction of the present utility model, in the accompanying drawings:
Fig. 1 is the hardware system theory of constitution figure of a kind of brushless electronic fan governor of this utility model.
Fig. 2 is controller application example figure of the present utility model.
Detailed description of the invention
Describe this utility model in detail below in conjunction with accompanying drawing and specific embodiment, with illustrative examples of the present utility model and illustrate to be used for explaining this utility model at this, but be not intended as restriction of the present utility model.
Embodiment
As it is shown in figure 1, consult Fig. 1, a kind of brushless electronic fan governor, including microprocessor 22, power supply processing circuit 1, input signal processing circuit 2, output signal processing circuit 11, telecommunication circuit 8, temperature signal circuit 7, drive and protection circuit 15. Power supply processing circuit 1 exports DC5V power supply 21 and inputs signal 11, telecommunication circuit 8, temperature signal circuit 7 with microprocessor 22, output respectively. Power supply processing circuit 1 exports DC15V power supply 20 and is connected with driving and protection circuit 15. Input signal processing circuit 2, output signal processing circuit 11, telecommunication circuit 8, temperature signal circuit 7, driving and protection circuit 15 are connected with microprocessor 22 respectively. Above circuit is arranged in controller housing.
Power supply processing circuit 1 is made up of three parts; the prime that a part is supply DC5V power supply 21 and DC15V power supply 20 processes 19; a part provides the DC5V power supply 21 of power supply for microprocessor 22 and peripheral interlock circuit; a part is for driving and protect the DC15V power supply 20 of PWM or the DA confession of circuit 15, and two part power supplys are independent. In power supply processing circuit 1 prime process the 19 special lightning protection of employing, Anti-surging and throw load protection, from extensive electrical fuse element, for improving the capacity of resisting disturbance of power supply, the logical element of wave resistance can adopt the SM8S36A element of Vishay company. Lightning protection adopts the ceramic disc capacitor organizing 1kV more. SMD050 element is adopted from extensive electric fuse.
The generator signal 3 of input signal processing circuit 2 to electromotor start stop signal by input microprocessor 22 after input light Rhizoma Nelumbinis after shaping. Strong cold switch 4 is high and low level signal, input microprocessor 22 after light Rhizoma Nelumbinis isolates. Tach signal 5 input is rotation speed of the fan, and rotation speed of the fan is frequency signal, and frequency signal inputs light Rhizoma Nelumbinis input microprocessor 22 again after shaping, Filtering Processing. Other signal 6 input interface is reserved signal input interface, for the signal reservations of other needs input of vehicle.
Temperature signal circuit 7 input is the various temperature signals needing cooling medium, have ECTS, charge air cooler temperature sensor, motor temperature sensor and air conditioner temperature sensor, environment temperature sensor, oil temperature sensor wherein one or more. Meanwhile, the temperature signal of other resistor-type and voltage-type can be inputted. Resistor-type temperature signal converts voltage mode signals to through voltage division processing, and voltage mode signals is by input microprocessor 22 after overvoltage protection, Filtering Processing.
The information of controller, for carrying out communication with other equipment instrument with same type communication function, is uploaded to equipment instrument and receives the instruction of equipment instrument by the CAN communication 9 of telecommunication circuit 8. Serial communication 10 is responsible for the communication with PC apparatus such as computer, by the setting of PC apparatus such as computer, Read Controller parameter, monitors storage control running status.
The trouble lamp 14 of output signal processing circuit 11 is to export used by instruction when microprocessor 22 collects coherent signal exception. Relay 13 is when microprocessor 22 and power supply processing circuit 1 break down, and directly outputs signal to brushless electronic fan so that it is full speed running. Other signal 12 output interface is reserved signal output interface, for the signal reservations of other needs output of vehicle.
Drive and protection circuit 15 is used for exporting PWM output 18 and DA output 17. PWM output 18 and DA output 17 are for directly driving brushless electronic fan. Driving and brushless electronic fan is carried out short, open circuit by protection circuit 15, stall carries out detection and judged yesterday, closes output when occurring abnormal, brushless electronic fan and interlock circuit are protected.
Microprocessor 22 is the core parts of controller, adopts the AT90CAN128 single-chip microcomputer of atmel corp, and self also includes FLASHEPROM except arithmetical operation and control unit, RAM, EEPROM, A/D, the unit such as PWM, TIME, and there is serial ports and CAN communication interface. Storing the information such as the parameter of setting, system running state in EERPOM, A/D unit is responsible for being converted into analog quantity digital quantity, and PWM unit drives and protection circuit 15. TIME provides frequency signal for serial ports and CAN communication, and meanwhile, the operation for each circuit provides time planning.
The application on vehicle of a kind of brushless electronic fan governor, as shown in Figure 2, power supply processing circuit 1 input of a kind of brushless electronic fan governor is connected with ignition switch 25 with by electric fuse 26, and ignition switch 25 is connected with power supply 27, and power supply 27 is connected with bonding 28. 24 is strong cold switch, and 23 is the safety of strong cold switch input. The safety that 29 is the input of dynamo ignition signal. For convenient maintenance, it is mounted with malfunction indicator lamp 37. Controller connects with fan 38,39. Telecommunication circuit 8 is connected with 35CAN communication interface and 34 serial communication interfaces respectively. Realize monitoring and parameter has been arranged.
The medium that the passenger vehicle of existing market need to cool down mainly has engine coolant, engine booster air, and two kinds of cooling mediums are cooled down by two radiators, and two heat radiations adopt parallel way, mate with fan according to the heat dissipation capacity that electromotor need to cool down. the size of heat dissipation capacity is determined by the air quantity of the process of radiator, along with the raising cooling performance of rotation speed of the fan promotes, the rotating speed of fan changes by driving and protect the driving force of circuit 15 to change, thus regulating the rotating speed of fan, engine coolant and charge-air temperature is made to maintain within the scope of best effort. engine coolant unit temp sensor 30, engine booster air unit temp sensor 31, controller connects two temperature sensors 30,31 and strong cold switch 24 as input. the safety that 29 is the input of dynamo ignition signal. microprocessor 22 gathers the temperature of engine coolant unit temp sensor 30 and engine booster air 31, the voltage of the signal of strong cold switch 24 and dynamo ignition signal insurance 29. when dynamo ignition signal insurance 29 obtains electric, controller carries out computing according to the temperature of present engine coolant apparatus temperature sensor 30 and engine booster air temperature sensor 31 and the parameter of setting and draws PWM value or DA value, the PWM value whether enabled with strong cold switch or DA value compare the output the maximum rotating speed to driving and protection drives fan, have adjusted the rotating speed of fan, change radiator cooling effect, the temperature making engine coolant unit temp sensor 30 and engine booster air temperature sensor 31 maintains within the scope of optimum working temperature, thus improving the work efficiency of electromotor and the effect of energy-saving and emission-reduction.
The technical scheme above this utility model embodiment provided is described in detail, principle and the embodiment of this utility model embodiment are set forth by specific case used herein, and the explanation of above example is only applicable to the principle helping to understand this utility model embodiment; Simultaneously for one of ordinary skill in the art, according to this utility model embodiment, all will change in detailed description of the invention and range of application, in sum, this specification content should not be construed as restriction of the present utility model.
Claims (7)
1. a brushless electronic fan governor, it is characterised in that:
Including microprocessor, power supply processing circuit, input signal processing circuit, output signal processing circuit, telecommunication circuit, temperature signal circuit, driving and protection circuit, the DC5V power supply of power supply processing circuit output is connected with microprocessor, output signal processing circuit, input signal processing circuit, telecommunication circuit, temperature signal circuit, driving and protection circuit respectively; The DC15V power supply of power supply processing circuit output is connected with driving and protection circuit, and input signal processing circuit, output signal processing circuit, telecommunication circuit, temperature signal circuit, driving and protection circuit are connected with microprocessor respectively; It is provided with signaling interface in input signal processing circuit, output signal processing circuit.
2. a kind of brushless electronic fan governor according to claim 1, it is characterised in that:
Described power supply processing circuit have lightning protection, Anti-surging and throw load protection, from extensive electrical fuse element.
3. a kind of brushless electronic fan governor according to claim 1, it is characterised in that:
Described temperature signal circuit include ECTS, charge air cooler temperature sensor, motor temperature sensor and air conditioner temperature sensor, environment temperature sensor, one of oil temperature sensor, two or more.
4. a kind of brushless electronic fan governor according to claim 1, it is characterised in that:
Described input signal processing circuit has generator signal input interface, tach signal input interface, strong cold switch input interface and other reserved signal input interface.
5. a kind of brushless electronic fan governor according to claim 1, it is characterised in that:
Described telecommunication circuit is containing serial ports RS232 telecommunication circuit and CAN communication circuit.
6. a kind of brushless electronic fan governor according to claim 1, it is characterised in that:
Described output signal processing circuit has trouble lamp, relay output interface and other reserved output signaling interface.
7. a kind of brushless electronic fan governor according to claim 1, it is characterised in that:
Described driving and protection circuit are containing PWM output circuit and DA output circuit, and PWM output circuit and DA output circuit are taken anti-counterattack, overvoltage crowbar.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080341.0U CN205277890U (en) | 2015-12-21 | 2015-12-21 | Brushless electron fan governor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521080341.0U CN205277890U (en) | 2015-12-21 | 2015-12-21 | Brushless electron fan governor |
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| Publication Number | Publication Date |
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| CN205277890U true CN205277890U (en) | 2016-06-01 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201521080341.0U Active CN205277890U (en) | 2015-12-21 | 2015-12-21 | Brushless electron fan governor |
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| CN (1) | CN205277890U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405824A (en) * | 2020-03-31 | 2020-07-10 | 深圳市英威腾电源有限公司 | UPS heat dissipation method and device and UPS heat dissipation system |
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2015
- 2015-12-21 CN CN201521080341.0U patent/CN205277890U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111405824A (en) * | 2020-03-31 | 2020-07-10 | 深圳市英威腾电源有限公司 | UPS heat dissipation method and device and UPS heat dissipation system |
| CN111405824B (en) * | 2020-03-31 | 2023-01-31 | 深圳市英威腾电源有限公司 | UPS heat dissipation method and device and UPS heat dissipation system |
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