CN208487048U - Cooling fan controller and engine-cooling system based on induction less brush-less motor - Google Patents
Cooling fan controller and engine-cooling system based on induction less brush-less motor Download PDFInfo
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- CN208487048U CN208487048U CN201821144488.5U CN201821144488U CN208487048U CN 208487048 U CN208487048 U CN 208487048U CN 201821144488 U CN201821144488 U CN 201821144488U CN 208487048 U CN208487048 U CN 208487048U
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- cooling fan
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- microprocessor
- pwm
- fan controller
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Abstract
The utility model relates to a kind of cooling fan controller and engine-cooling systems, wherein cooling fan controller, comprising: PWM receiving module, microprocessor and power tube drive module；PWM receiving module, microprocessor and power tube drive module are successively electrically connected, and are integrated on one piece of circuit board；PWM receiving module is suitable for receiving the PWM speed-regulating signal that engine is sent and is sent to microprocessor；Microprocessor is suitable for controlling the work of induction less brush-less motor by power tube drive module according to the pwm signal received, so that cooling fan be driven to cool down engine.Engine is cooled down by using induction less brush-less motor, control device is set to reduce the circuit of sensor, PWM receiving module, microprocessor and power tube drive module are integrated on same circuit board simultaneously, the arrangement of circuit is reduced, saves the space of printed circuit board.
Description
Technical field
The utility model relates to engine cool fields, in particular to a kind of cooling fan controller and hair
Motivation cooling system.
Background technique
The shortcomings that traditional brush motor cooling fan is that power is small at present, needs to install 2 on the biggish vehicle of horsepower
Platform cooling fan increases the cost of manufacture, while having the service life of brush cooling fan shorter.Thoughts brushless motor cooling fan
The disadvantage is that needing to install 3 Hall sensors, cost is on the one hand increased, on the other hand increases electric machine structure and controller knot
The complexity of structure, while the difficulty of manufacturing process also accordingly increases.Existing technology cooling fan drive system there is also
Using the scheme that element is discrete, microprocessor and power tube drive circuit are separated, or build other circuits, is increased very much
Interface causes the unstability of circuit.
How to solve the above problems, is urgently to be resolved at present.
Utility model content
The purpose of the utility model is to provide a kind of cooling fan controller and engine-cooling systems, logical to realize
It crosses control induction less brush-less motor to cool down, thus simplified control circuit.
To achieve the goals above, the utility model embodiment the technical solution adopted is as follows:
The utility model embodiment provides a kind of cooling fan controller, comprising: PWM receiving module, microprocessor
And power tube drive module；
The PWM receiving module, the microprocessor and the power tube drive module are successively electrically connected；
The PWM receiving module is suitable for receiving the PWM speed-regulating signal that engine is sent and is sent to the microprocessor；
The microprocessor is suitable for controlling induction less brush-less by the power tube drive module according to the pwm signal received
Motor work, so that cooling fan be driven to cool down engine.
In the utility model preferred embodiment, the cooling fan controller further includes RC filtering FM module；
The microprocessor filters FM module by the RC and the power tube drive module is electrically connected.
In the utility model preferred embodiment, the cooling fan controller further includes PWM failure feedback module；
The PWM failure feedback module and the microprocessor module are electrically connected；
The PWM failure feedback module is suitable for receiving fault-signal, and is sent to the microprocessor module；
The microprocessor module, which is further adapted for receiving the fault-signal and passes through the power tube drive module, controls nothing
Sense brushless motor stops working, to stop the operation of cooling fan.
In the utility model preferred embodiment, the output end of the PWM receiving module and the PWM failure feed back mould
The pwm signal that the output end of block is electrically connected at the microprocessor receives pin.
In the utility model preferred embodiment, the cooling fan controller further includes temperature detecting module；
The temperature detecting module and the microprocessor are electrically connected；
The temperature detecting module includes acquiring the power tube nearby external sensor of environment temperature and acquisition microprocessor
The internal sensor of internal temperature.
In the utility model preferred embodiment, the cooling fan controller further includes power module；
The power module includes vehicle power supply and DC-DC voltage conversion circuit；
The vehicle power supply and the DC-DC voltage conversion circuit are electrically connected；
The DC-DC voltage conversion circuit supplies after being suitable for for vehicle power supply being depressured to the cooling fan controller
Electricity.
In the utility model preferred embodiment, the power module further includes reverse-connection preventing circuit；
The vehicle power supply is electrically connected by the reverse-connection preventing circuit and the DC-DC voltage conversion circuit.
In the utility model preferred embodiment, the power module further includes voltage pump rise circuit；
The vehicle power supply is electrically connected by the voltage pump rise circuit and the power tube drive module；
The voltage pump rise circuit, which is suitable for rising to the voltage of the vehicle power supply, can drive the power tube to drive
The pulse voltage of the power tube of module.
In the utility model preferred embodiment, the cooling fan controller further include respectively with the micro process
The busbar voltage Acquisition Circuit and bus current Acquisition Circuit that device is electrically connected；
The busbar voltage Acquisition Circuit and the bus current Acquisition Circuit are respectively adapted to acquire the cooling fan
The voltage and electric current of control device are simultaneously sent to the microprocessor.
The utility model embodiment additionally provides a kind of engine-cooling system, including engine, cooling fan, noninductive nothing
Brush motor and such as above-mentioned cooling fan controller.
Compared with the existing technology, the utility model embodiment has the advantages that
The utility model embodiment provides a kind of cooling fan controller and engine-cooling system, wherein cooling
Fan control device, comprising: PWM receiving module, microprocessor and power tube drive module；PWM receiving module, microprocessor
And power tube drive module is successively electrically connected, and is integrated on one piece of circuit board；PWM receiving module is suitable for receiving engine
The PWM speed-regulating signal of transmission is simultaneously sent to microprocessor；Microprocessor is suitable for driving according to the pwm signal received by power tube
Dynamic model block controls the work of induction less brush-less motor, so that cooling fan be driven to cool down engine.By using induction less brush-less
Motor cools down engine, and control device is made to reduce the circuit of sensor, while by PWM receiving module, microprocessor
And power tube drive module is integrated on same circuit board, reduces the arrangement of circuit, saves the sky of printed circuit board
Between.
Detailed description of the invention
The present invention will be further described with reference to the accompanying drawings and examples.
Fig. 1 shows the cooling fan controller based on induction less brush-less motor provided by the utility model embodiment
Schematic block circuit diagram.
Fig. 2 shows the circuit diagrams of DC-DC voltage conversion circuit provided by the utility model embodiment.
Fig. 3 shows the circuit diagram of voltage pump rise circuit provided by the utility model embodiment.
Fig. 4 shows the circuit diagram of PWM communication interface circuit provided by the utility model embodiment.
Fig. 5 shows the circuit diagram of power tube drive circuit provided by the utility model embodiment.
Fig. 6 shows power tube drive circuit provided by the utility model embodiment and external power pipe connection relationship
Circuit diagram.
Fig. 7 shows the micro process connecting in PWM communication interface circuit provided by the utility model embodiment with Lin mouthfuls
Device internal circuit diagram.
Specific embodiment
The utility model is described in further detail presently in connection with attached drawing.These attached drawings are simplified schematic diagram,
Only illustrate the basic structure of the utility model in a schematic way, therefore it only shows composition related with the utility model.
Embodiment
Referring to Fig. 1, the utility model embodiment provides a kind of cooling fan control dress based on induction less brush-less motor
It sets.Cooling fan controller based on induction less brush-less motor includes: PWM receiving module, microprocessor and power tube driving
Module；The PWM receiving module, the microprocessor and the power tube drive module are successively electrically connected, and are integrated in
On one piece of circuit board；The PWM receiving module is suitable for receiving the PWM speed-regulating signal that engine is sent and is sent to the micro process
Device；The microprocessor is suitable for controlling induction less brush-less motor by the power tube drive module according to the pwm signal received
Work, so that cooling fan be driven to cool down engine.Engine is cooled down by using induction less brush-less motor, is made
Control device reduces the circuit of sensor, while PWM receiving module, microprocessor and power tube drive module being integrated in
On same circuit board, the arrangement of circuit is reduced, saves the space of printed circuit board.
Wherein, the microprocessor is the processor of grace intelligence Pu semiconductor (NXP) S12ZVM series.Power tube is metal-oxide-semiconductor,
Using metal-oxide-semiconductor, the scalability of power circuit can be allowed to enhance, it is only necessary to select the power level of metal-oxide-semiconductor or by same level
Metal-oxide-semiconductor carry out in parallel, the motor of higher power can be driven.,
Referring to Fig. 5, the power tube drive circuit module that microprocessor internal is included, this module are integrated in microprocessor
Portion, traditional induction less brush-less cooling fan control system can add again a metal-oxide-semiconductor driving chip outside microprocessor, this is
System is since microprocessor internal carries metal-oxide-semiconductor driving circuit, so without adding again, with external metal-oxide-semiconductor connection relationship such as Fig. 6
Shown, in Fig. 6, the main function of circuit is to control nothing by the opening of metal-oxide-semiconductor (ON) in control three-phase bridge and shutdown (OFF)
Feeling revolving speed, direction and the position of brshless DC motor, metal-oxide-semiconductor M1, M3, M5 are that the flash of H bridge drives, metal-oxide-semiconductor M2, M4,
M6 is the low side driving of H bridge.HG0 in figure, HG1, HG2 pin are metal-oxide-semiconductor M1 respectively, the driving pin of M3, M5,
LG0, LG1, LG2 pin are metal-oxide-semiconductor M2 respectively, the driving pin of M4, M6, HS0, HS1, HS2 pin and flash metal-oxide-semiconductor M1, M3,
The drain electrode of the source electrode of M5, low side metal-oxide-semiconductor M2, M4, M6 connects while connecting the capacitor C24, C25, C26 of voltage pump rise circuit as schemed
4.The voltage of three phase back-emfs of induction less brush-less direct current generator can be by HS0, HS1, and HS2 pin is sent in microprocessor
The zero-crossing comparator in portion, main function, which is controller, carries out 6 step commutations to induction less brush-less motor according to the zero point for crossing counter electromotive force
Induction less brush-less direct current generator is set to operate according to correct magnetic field.
Wherein, referring to Fig. 4, LIN controller and LIN transceiver are integrated among microprocessor, outside no longer needs to add
Add remaining LIN controller and LIN transceiver circuit.If control system is from node, so in figure in LIN communication network
Device in dotted line frame be it is unwanted, device include (resistance RML1, resistance RML2, diode DML1), if this node is
Host node, then the device in figure in dotted line frame is needed.The effect of capacitor C1 in figure, capacitor C2 mainly play filtering
The effect of coupling, device ESD1 main function are the high-pressure electrostatics for preventing external moment, prevent LIN interface breakdown, increase
Anti-interference ability in EMC.This LIN interface is also used as the acquisition of PWM duty cycle, the microprocessor internal connecting with LIN mouthfuls
Circuit such as Fig. 7: if LIN mouthfuls have signal input, the signal outside the reception of Receiver receiver is finally transferred to microprocessor
Internal PIM module, this module can receive the duty ratio and frequency of LIN signal or measurement input PWM.In the present embodiment
In, communication mode selection is PWM communication, can be communicated in other embodiments using CAN communication or Lin.
In the present embodiment, the cooling fan controller further includes RC filtering FM module；The microprocessor is logical
It crosses the RC filtering FM module and the power tube drive module is electrically connected.
In the present embodiment, the cooling fan controller further includes PWM failure feedback module；The PWM failure is anti-
It presents module and the microprocessor module is electrically connected；The PWM failure feedback module is suitable for receiving fault-signal, and is sent to
The microprocessor module；The microprocessor module is further adapted for receiving the fault-signal and drives mould by the power tube
Block control induction less brush-less motor stops working, to stop the operation of cooling fan.
Wherein, the output end of the PWM receiving module and the output end of the PWM failure feedback module are electrically connected at
The pwm signal of the microprocessor receives pin.To save a pin.
In the present embodiment, the cooling fan controller further includes temperature detecting module；The temperature detecting module
It is electrically connected with the microprocessor；The temperature detecting module includes the external sensor for acquiring environment temperature near power tube
And the internal sensor of acquisition microprocessor internal temperature.By being acquired near microprocessor internal temperature and power tube in real time
Environment temperature, when the temperature of acquisition is more than preset value, control induction less brush-less motor stops working.
In the present embodiment, the cooling fan controller further includes power module；The power module includes vehicle-mounted
Power supply and DC-DC voltage conversion circuit；The vehicle power supply and the DC-DC voltage conversion circuit are electrically connected；The DC-
D/C voltage conversion circuit is powered after being suitable for for vehicle power supply being depressured to the cooling fan controller.
Wherein, referring to Fig. 2, the BCTL pin of microprocessor connects the base stage of pliotron and one end of resistance R24,
The emitter of other end the connection input power+12V and triode Q1 of resistance R24, the current collection of capacitor C22 connecting triode Q1
Pole and out-put supply+5V0.+ 12V voltage is converted to+5V voltage by this circuit, is provided for the VDDX/VDDA pin of microprocessor
Power supply saves certain cost, simplifies the complexity of circuit without additionally using additional power conversion chip again.
In the present embodiment, the power module further includes reverse-connection preventing circuit；The vehicle power supply passes through described anti-reverse
Circuit and the DC-DC voltage conversion circuit are electrically connected.By reverse-connection preventing circuit, prevents from burning out when vehicle power supply is reversed and be
System, to protect entire circuit.
Referring to Fig. 3, in the present embodiment, the power module further includes voltage pump rise circuit；The vehicle power supply is logical
It crosses the voltage pump rise circuit and the power tube drive module is electrically connected；The voltage pump rise circuit is suitable for will be described vehicle-mounted
The voltage of power supply rises to the pulse voltage that can drive the power tube of the power tube drive module.Specifically, diode
One end of D1A, D1B, D1C are connect with U1 pin VLS_OUT, the other end of diode D1A, D1B, D1C respectively with capacitor
C24, capacitor C25, one end of capacitor C26 and the VBS0 of U1, VBS1, the connection of VBS2 pin, capacitor C24, capacitor C25, capacitor C26
Other end and resistance R27, one end of resistance R28, resistance R29 connect, resistance R27, resistance R28, other the one of resistance R29
Three-phase U, V, the W connection at end and induction less brush-less motor.The output voltage of VLS_OUT pin is 11V, gives capacitor under normal circumstances
C24, capacitor C25, capacitor C26 charging, capacitor C24 after charging complete, capacitor C25, the upper end voltage of capacitor C26 are 11V,
The upper end voltage of capacitor C24 after voltage pump rise, capacitor C25, capacitor C26 rise to 23V, and it is electric at this time to open HG0/HG1/HG2
Pressure energy enough opens bridge metal-oxide-semiconductor.
In the present embodiment, the cooling fan controller further includes the mother being electrically connected respectively with the microprocessor
Line voltage Acquisition Circuit and bus current Acquisition Circuit；The busbar voltage Acquisition Circuit and bus current acquisition electricity
Road is respectively adapted to acquire the voltage of the cooling fan controller and electric current and is sent to the microprocessor.
In the present embodiment, cooling fan controller further includes the igniting detection circuit being electrically connected with microprocessor；
The igniting detection circuit is adapted to detect for vehicle-state and is sent to microprocessor, when detecting vehicle igniting, passes through micro- place
It manages device and starts cooling fan controller.
In the present embodiment, cooling fan controller further includes EMC suppression circuit, and EMC suppression circuit is suitable for when vehicle-mounted
Power supply power supply, vehicle electric load etc. variation when, it is ensured that microprocessor still can keep working condition.
The utility model embodiment additionally provides a kind of engine-cooling system, including engine, cooling fan, noninductive nothing
Brush motor and such as above-mentioned cooling fan controller based on induction less brush-less motor.The chip of engine interior is believed with PWM
Number form send the PWM speed regulation information with rotary speed information to cooling fan controller, by the revolving speed of engine come pair
The duty ratio of pwm signal should be adjusted, so that the revolving speed of induction less brush-less motor is adjusted, so that cooling fan be made to drop engine
Temperature.The revolving speed for corresponding to adjustment cooling fan by the revolving speed of engine in real time, saves the energy, while improving cooling effect
Fruit.
In conclusion the utility model embodiment provides a kind of cooling fan controller and engine-cooling system,
Wherein, cooling fan controller, comprising: PWM receiving module, microprocessor and power tube drive module；PWM receives mould
Block, microprocessor and power tube drive module are successively electrically connected, and are integrated on one piece of circuit board；PWM receiving module is suitable
In the PWM speed-regulating signal for receiving engine transmission and it is sent to microprocessor；Microprocessor is suitable for according to the pwm signal received
The work of induction less brush-less motor is controlled by power tube drive module, so that cooling fan be driven to cool down engine.Pass through
Engine is cooled down using induction less brush-less motor, so that control device is reduced the circuit of sensor, while PWM is received mould
Block, microprocessor and power tube drive module are integrated on same circuit board, reduce the arrangement of circuit, save printing
The space of circuit board.
In the description of the present invention, it should also be noted that, unless otherwise clearly defined and limited, term " is set
Set ", " installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection,
Or it is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediary can also be passed through
It is indirectly connected, can be the connection inside two elements.For the ordinary skill in the art, it can be managed with concrete condition
Solve the concrete meaning of above-mentioned term in the present invention.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
The above descriptions are merely preferred embodiments of the present invention, is not intended to limit the utility model, for this
For the technical staff in field, various modifications and changes may be made to the present invention.It is all in the spirit and principles of the utility model
Within, any modification, equivalent replacement, improvement and so on should be included within the scope of protection of this utility model.
Claims (10)
1. a kind of cooling fan controller based on induction less brush-less motor characterized by comprising
PWM receiving module, microprocessor and power tube drive module；
The PWM receiving module, the microprocessor and the power tube drive module are successively electrically connected, and are integrated in one
On block circuit board；
The PWM receiving module is suitable for receiving the PWM speed-regulating signal that engine is sent and is sent to the microprocessor；
The microprocessor is suitable for controlling induction less brush-less motor by the power tube drive module according to the pwm signal received
Work, so that cooling fan be driven to cool down engine.
2. the cooling fan controller as described in claim 1 based on induction less brush-less motor, which is characterized in that
The cooling fan controller further includes RC filtering FM module；
The microprocessor filters FM module by the RC and the power tube drive module is electrically connected.
3. the cooling fan controller as described in claim 1 based on induction less brush-less motor, which is characterized in that
The cooling fan controller further includes PWM failure feedback module；
The PWM failure feedback module and the microprocessor module are electrically connected；
The PWM failure feedback module is suitable for receiving fault-signal, and is sent to the microprocessor module；
The microprocessor module, which is further adapted for receiving the fault-signal and passes through the power tube drive module, controls noninductive nothing
Brush motor stops working, to stop the operation of cooling fan.
4. the cooling fan controller as claimed in claim 3 based on induction less brush-less motor, which is characterized in that
The output end of the output end of the PWM receiving module and the PWM failure feedback module is electrically connected at micro- place
The pwm signal for managing device receives pin.
5. the cooling fan controller as described in claim 1 based on induction less brush-less motor, which is characterized in that
The cooling fan controller further includes temperature detecting module；
The temperature detecting module and the microprocessor are electrically connected；
The temperature detecting module includes acquiring the power tube nearby external sensor of environment temperature and acquisition microprocessor internal
The internal sensor of temperature.
6. the cooling fan controller as described in claim 1 based on induction less brush-less motor, which is characterized in that
The cooling fan controller further includes power module；
The power module includes vehicle power supply and DC-DC voltage conversion circuit；
The vehicle power supply and the DC-DC voltage conversion circuit are electrically connected；
The DC-DC voltage conversion circuit is powered after being suitable for for vehicle power supply being depressured to the cooling fan controller.
7. the cooling fan controller as claimed in claim 6 based on induction less brush-less motor, which is characterized in that
The power module further includes reverse-connection preventing circuit；
The vehicle power supply is electrically connected by the reverse-connection preventing circuit and the DC-DC voltage conversion circuit.
8. the cooling fan controller as claimed in claim 6 based on induction less brush-less motor, which is characterized in that
The power module further includes voltage pump rise circuit；
The vehicle power supply is electrically connected by the voltage pump rise circuit and the power tube drive module；
The voltage pump rise circuit is suitable for rising to the voltage of the vehicle power supply that the power tube drive module can be driven
Power tube pulse voltage.
9. the cooling fan controller as described in claim 1 based on induction less brush-less motor, which is characterized in that
The cooling fan controller further include respectively with the microprocessor be electrically connected busbar voltage Acquisition Circuit with
And bus current Acquisition Circuit；
The busbar voltage Acquisition Circuit and the bus current Acquisition Circuit are respectively adapted to acquire the cooling fan control
The voltage and electric current of device are simultaneously sent to the microprocessor.
10. a kind of engine-cooling system, which is characterized in that including engine, cooling fan, induction less brush-less motor and such as power
The benefit cooling fan controller based on induction less brush-less motor that requires 1-9 described in any item.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144488.5U CN208487048U (en) | 2018-07-18 | 2018-07-18 | Cooling fan controller and engine-cooling system based on induction less brush-less motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821144488.5U CN208487048U (en) | 2018-07-18 | 2018-07-18 | Cooling fan controller and engine-cooling system based on induction less brush-less motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208487048U true CN208487048U (en) | 2019-02-12 |
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ID=65246625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821144488.5U Active CN208487048U (en) | 2018-07-18 | 2018-07-18 | Cooling fan controller and engine-cooling system based on induction less brush-less motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208487048U (en) |
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2018
- 2018-07-18 CN CN201821144488.5U patent/CN208487048U/en active Active
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