CN204327552U - Vehicle cooling fan controller - Google Patents
Vehicle cooling fan controller Download PDFInfo
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- CN204327552U CN204327552U CN201420716524.6U CN201420716524U CN204327552U CN 204327552 U CN204327552 U CN 204327552U CN 201420716524 U CN201420716524 U CN 201420716524U CN 204327552 U CN204327552 U CN 204327552U
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Abstract
The utility model relates to a kind of vehicle cooling fan controller, described controller comprises central control chip, pwm signal input circlult, circuit for preventing reverse connection of power supply, electronic switch, drive circuit, power supply bleeder circuit, three-phase bridge, pwm signal output circuit and voltage and current detection circuit, and described pwm signal input circlult comprises pre-processing module and integration module; Described drive circuit comprises driving chip and NOT gate chip, described voltage and current detection circuit comprise brshless DC motor, zero point testing module and current detection module, described controller also comprises output signal puocessing module and exports sampling module.Adopt the vehicle cooling fan controller of this kind of structure to be achieved by metal-oxide-semiconductor and prevent that the positive and negative termination of power supply is counter to be protected; utilize the PWM imput output circuit with current-limiting protection function to realize the operation conditions of the variable and real-time feedback control device of input voltage simultaneously; reduce oil consumption, have wide range of applications.
Description
Technical field
The utility model relates to Vehicle Engineering, particularly relates to controller of vehicle, specifically refers to a kind of vehicle cooling fan controller.
Background technique
Low-power motor controller is widely used in the cooling of automobile, oil circuit, fan system at present.What existing automobile-used cooling waterpump and fan adopted is DC MOTOR CONTROL mode, substantially all run with maximum radiating effect operating mode after direct current generator energising, this control mode is larger for power consumpiton, be unfavorable for reducing oil consumption, and can not feed back in time when breaking down, easily Full Vehicle System be threatened safely.
Model utility content
The purpose of this utility model is the shortcoming overcoming above-mentioned prior art, provides a kind of electric power polarity that can prevent and connects the anti-vehicle cooling fan controller causing the damage to controller, waken up dormancy, have wide range of applications by PWM.
To achieve these goals, vehicle cooling fan controller of the present utility model has following formation:
This vehicle cooling fan controller, described controller comprises central control chip, pwm signal input circlult, and described controller also comprises circuit for preventing reverse connection of power supply, electronic switch, drive circuit, power supply bleeder circuit, three-phase bridge and voltage and current detection circuit, the input end of described circuit for preventing reverse connection of power supply is connected with power supply, the output terminal of described circuit for preventing reverse connection of power supply is connected with the first end of described electronic switch and the first input end of three-phase bridge respectively, first output terminal of described central control chip and the first output terminal of pwm signal input circlult are connected with the control end of described electronic switch respectively, second end of described electronic switch is connected with the input end of described power supply bleeder circuit, first output terminal of described power supply bleeder circuit is connected with described drive circuit and central control chip respectively, second output terminal of described power supply bleeder circuit is connected with described drive circuit and central control chip respectively, the first input end of described central control chip is connected with the second output terminal of described pwm signal input circlult, second output terminal of described central control chip is connected with described drive circuit, the output terminal of described drive circuit is connected with the second input end of described three-phase bridge, the output terminal of described three-phase bridge is connected with the input end of described motor, the output terminal of described motor is connected with the input end of described voltage and current detection circuit, the voltage output end of described voltage and current detection circuit and current output terminal are connected with the measure voltage & current input end of described central control chip respectively, 3rd output terminal of described central control unit is connected with the input end of pwm signal output circuit, the output terminal of described pwm signal output circuit is connected with fan for vehicle.
Further, described circuit for preventing reverse connection of power supply comprises metal-oxide-semiconductor, the first resistance, the second resistance, the first diode (D1), the second diode, the 3rd diode, the 4th diode first electric capacity and the second electric capacity; Positive input and the pwm signal input end of the positive input of the first end of the second described electric capacity, the first end of the second resistance, the 3rd diode, the source electrode of metal-oxide-semiconductor, the 4th diode are connected; The reverse input end of the second end of the second described electric capacity, the second end of the second resistance, the 3rd diode, the normal phase input end of the first diode, the reverse input end of the second diode and the grid of metal-oxide-semiconductor are connected; The first end of the reverse input end of the first described diode, the positive input of the second diode and the first described electric capacity is connected, and the drain electrode of described metal-oxide-semiconductor, the reverse input end of the 4th diode, the second end of the first resistance are connected with the first input end of described three-phase bridge; Second end of the first described electric capacity, the first end of the first resistance are connected with the first end of described electronic switch.
Further, described pwm signal input circlult comprises pre-processing module and integration module; The output terminal of described pre-processing module is connected with the input end of described integration module, and the output terminal of described integration module is connected with the first input end of described central control chip.
Further, described pre-processing module comprises the first triode, the second triode, the 3rd resistance and the 4th resistance; The described first end of the 4th resistance, the collector electrode of the first triode and PWM input signal are connected, second end of the base stage of the first described triode, the collector electrode of the second triode and the 4th described resistance is connected, the first end of the emitter of the first described triode, the base stage of the second triode and the 3rd described resistance is connected, and the emitter of the second described triode, the second end of the 3rd resistance, the input end of described integration module are connected.
Further, described integration module comprises the 5th diode, the 5th resistance, the 6th resistance, the 7th resistance, the 8th resistance, the 3rd triode, the 4th triode and the 3rd electric capacity, the 4th electric capacity; The reverse input end of the 5th described diode, the first end of the 5th resistance are connected with the output terminal of described pre-processing module; The positive input ground connection of the 5th described diode, second end of the 5th described resistance, the second end of the 6th resistance, the first end of the 3rd electric capacity, the first end of the 7th resistance are connected, second end ground connection of the 3rd described electric capacity, the first end of the 6th described resistance is connected with the first end of the 4th described electric capacity, and the second end of the 4th described electric capacity is connected with the first input end of central control chip; The base stage of the second end of the 7th described resistance, the first end of the 8th resistance and the 3rd described triode is connected, second end ground connection of the 8th described resistance, the emitter base of the 3rd described triode, the collector electrode of the 3rd described triode, the described collector electrode of the 4th triode and the control end of described electronic switch are connected, the grounded-emitter connection of the 4th described triode, the base stage of the 4th described triode is connected with the Enable Pin of described central control chip.
Further, described drive circuit comprises driving chip and six input NOT gate chip, the six described input input ends of NOT gate chip are connected with the second output terminal of described central control chip, the output terminal of six described input NOT gate chip is connected with the input end of described driving chip, first power input of described driving chip is connected with the first output terminal of described power supply bleeder circuit, the second source input end of described driving chip is connected with the second output terminal of described power supply bleeder circuit, the output terminal of described driving chip is connected with the second input end of described three-phase bridge.
Further, described voltage and current detection circuit comprises testing module and current detection module at zero point, described motor respectively with described zero point testing module input end and the input end of current detection module be connected, described zero point, the output terminal of testing module was connected with the voltage detecting input end of described central control module, and the output terminal of described current detection module is connected with the current sense input of described central control module.
Further, be also provided with between described central control chip and described PWM output circuit and output signal puocessing module and export sampling module; The input end of described output signal puocessing module is connected with the 3rd output terminal of described central control chip, the output terminal of described output signal puocessing module is connected with the input end of described output sampling module, first output terminal of described output sampling module is connected with the sampled signal test end of described central control chip, second output terminal of described output sampling module is connected with the input end of described pwm signal output circuit, and the signal output part of described pwm signal output circuit is connected with described fan for vehicle.
Further, described pwm signal output circuit comprises the 5th triode, 6th triode, 7th triode, 9th resistance, tenth resistance, 11 resistance and the 6th diode, second output terminal of described output sampling module is connected with the base stage of the 7th described triode, the grounded-emitter connection of the 7th described triode, the collector electrode of the 7th described triode is connected with the first end of the 11 described resistance, the second end of the 11 described resistance, the first end of the 9th resistance, the collector electrode of the 5th triode, the base stage of the 6th triode is connected, the second end of the 9th described resistance, the first end of the tenth resistance, emitter and the power supply of the 5th triode are connected, the base stage of the 5th described triode, the emitter of the 6th triode, second end of the tenth resistance is connected, and the collector electrode of the 6th described triode is connected with the positive input of the 6th described diode, and the inverting input of the 6th described diode is connected with described fan for vehicle.
Have employed the vehicle cooling fan controller in this model utility, corresponding cooling, oil circuit, fan system is made to can be implemented in cold car, hot car, accurate output under the various working such as acceleration, the feedback to the output control under different operating mode and fault state own is realized by the input output of pwm signal in controller, the energy consumption in stand-by power consumption and driving can be effectively reduced, improve the reliability of system simultaneously, can feed back when controller breaks down in time and report process, effectively improve traffic safety.
Vehicle cooling fan controller in the utility model adds the anti-reverse protection of N-channel MOS FET anode on the scheme basis of conventional motors controller, prevents electric power polarity from connecing the anti-damage caused controller; Secondly PWM input wakes dormancy up, is waken up by dutycycle; Also carry out speed governing part input PWM voltage variable by dutycycle in addition; Finally by having current-limiting protection function PWM output circuit feedback real-time running state, the accurately and reliably operation of supervisory control device.
Accompanying drawing explanation
Fig. 1 is the structural representation of vehicle cooling fan controller of the present utility model.
Fig. 2 is the structural representation of circuit for preventing reverse connection of power supply of the present utility model.
Fig. 3 is the structural representation of pwm signal input circlult of the present utility model.
Fig. 4 is the structural representation of pre-processing module of the present utility model.
Fig. 5 is the structural representation of signal output module of the present utility model.
Embodiment
In order to more clearly describe technology contents of the present utility model, conduct further description below in conjunction with specific embodiment.
The application of the utility model vehicle cooling fan controller makes corresponding cooling, oil circuit, fan system can be implemented in cold car, hot car, accurate output under the various working such as acceleration, realizes the feedback to the input output control under different operating mode and fault state own by the input output of pwm signal in vehicle cooling fan controller.The introducing of whole vehicle cooling fan controller control mode can effectively reduce the energy consumption in stand-by power consumption and driving, improve the reliability of vehicle cooling fan controller simultaneously, can feed back when vehicle cooling fan controller breaks down in time and report process, effectively improve traffic safety.
This vehicle cooling fan controller adds the anti-reverse protection of N-channel MOS FET anode on the scheme basis of conventional motors controller, prevents electric power polarity from connecing the anti-damage caused vehicle cooling fan controller; Secondly PWM input wakes dormancy up, is waken up by dutycycle; Also carry out speed governing part input PWM voltage variable by dutycycle in addition; Finally by having current-limiting protection function PWM output circuit feedback real-time running state, monitor the operation of vehicle cooling fan controller accurately and reliably.
Refer to shown in Fig. 1, for the structural representation of vehicle cooling fan controller of the present utility model, wherein said controller comprises central control chip, pwm signal input circlult, and described controller also comprises circuit for preventing reverse connection of power supply, electronic switch, drive circuit, power supply bleeder circuit, three-phase bridge and voltage and current detection circuit, the input end of described circuit for preventing reverse connection of power supply is connected with power supply, the output terminal of described circuit for preventing reverse connection of power supply is connected with the first end of described electronic switch and the first input end of three-phase bridge respectively, first output terminal of described central control chip and the first output terminal of pwm circuit are connected with the control end of described electronic switch respectively, second end of described electronic switch is connected with the input end of described power supply bleeder circuit, first output terminal of described power supply bleeder circuit is connected with described drive circuit and central control chip respectively, second output terminal of described power supply bleeder circuit is connected with described drive circuit and central control chip respectively, the first input end of described central control chip is connected with the second output terminal of described pwm signal input circlult, second output terminal of described central control chip is connected with described drive circuit, the output terminal of described drive circuit is connected with the second input end of described three-phase bridge, the output terminal of described three-phase bridge is connected with the input end of described motor, the output terminal of described motor is connected with the input end of described voltage and current detection circuit, the voltage output end of described voltage and current detection circuit and current output terminal are connected with the measure voltage & current input end of described central control chip respectively, 3rd output terminal of described central control unit is connected with the input end of pwm signal output circuit, the output terminal of described pwm signal output circuit is connected with fan for vehicle.
Referring to shown in Fig. 2, is the structural representation of the utility model circuit for preventing reverse connection of power supply.Described circuit for preventing reverse connection of power supply comprises metal-oxide-semiconductor M1, the first resistance R1, the second resistance R2, the first diode D1, the second diode D2, the 3rd diode D3, the 4th diode D4 first electric capacity C1 and the second electric capacity C2; The positive input of the first end of the second described electric capacity C2, the first end of the second resistance R2, the 3rd diode D3, the source electrode of metal-oxide-semiconductor M1, the positive input of the 4th diode D4 and pwm signal input end are connected; The grid of the reverse input end of second end of the second described electric capacity C2, second end of the second resistance R2, the 3rd diode D3, the normal phase input end of the first diode D1, the reverse input end of the second diode and metal-oxide-semiconductor M1 is connected; The first end of the reverse input end of the first described diode D1, the positive input of the second diode D2 and the first described electric capacity C1 is connected, and second end of the drain electrode of described metal-oxide-semiconductor M1, the reverse input end of the 4th diode D4, the first resistance R1 is connected with the first input end of described three-phase bridge; Second end of the first described electric capacity C1, the first end of the first resistance R1 are connected with the first end of described electronic switch.
Wherein, open by the pwm signal inputting certain frequency and close T1; the conducting voltage being reached NMOS by the standby volt circuit of Fig. 2 makes metal-oxide-semiconductor M1 forward conduction; and when power supply connects inverse time; because metal-oxide-semiconductor M1 conducting cannot can play effective protection to whole controller; usual employing P channel mosfet is as anti-reverse protection, and the MOSFET price of N raceway groove of comparing is low, series is complete.
Referring to shown in Fig. 3, is the structural representation of pwm signal input circlult of the present utility model.The pre-processing module of described pwm signal input circlult and integration module; The output terminal of described pre-processing module is connected with the input end of described integration module, and the output terminal of described integration module is connected with the first input end of described central control chip.Described pre-processing module comprises the first triode T1, the second triode T2, the 3rd resistance R3 and the 4th resistance R4; The first end of the 4th described resistance R4, the collector electrode of the first triode T1 and PWM input signal are connected, second end of the base stage of the first described triode T1, the collector electrode of the second triode T2 and the 4th described resistance R4 is connected, the first end of the emitter of the first described triode T1, the base stage of the second triode T2 and the 3rd described resistance R3 is connected, and the emitter of the second described triode T2, second end of the 3rd resistance R3, the input end of described integration module are connected.Described integration module comprises the 5th diode D5, the 5th resistance R5, the 6th resistance R6, the 7th resistance R7, the 8th resistance R8, the 3rd triode T3, the 4th triode T4 and the 3rd electric capacity C3, the 4th electric capacity C4; The reverse input end of the 5th described diode D5, the first end of the 5th resistance R5 are connected with the output terminal of described pre-processing module; The positive input ground connection of the 5th described diode D5, second end of the 5th described resistance R5, second end of the 6th resistance R6, the first end of the 3rd electric capacity C3, the first end of the 7th resistance R7 are connected, the second end ground connection of the 3rd described electric capacity C3, the first end of the 6th described resistance R6 is connected with the first end of the 4th described electric capacity C4, and second end of the 4th described electric capacity C4 is connected with the first input end of central control chip; The base stage of second end of the 7th described resistance R7, the first end of the 8th resistance R8 and the 3rd described triode T3 is connected, the second end ground connection of the 8th described resistance R8, the emitter base of the 3rd described triode T3, the collector electrode of the 3rd described triode T3, the described collector electrode of the 4th triode T4 and the control end of described electronic switch are connected, the grounded-emitter connection of the 4th described triode T4, the base stage of the 4th described triode T4 is connected with the Enable Pin of described central control chip.
Wherein, input reaches the pwm signal of certain dutycycle by making T2 conducting after R3, C1 integration, opens electronic switch, powers to central control chip MCU, wake central control chip MCU up after T2 conducting.Oneself opening MCU-EN after central control chip MCU powers on makes T1 conducting maintain power supply.And identify that the dutycycle of PWM reaches corresponding output and controls by the value detecting ADC.Resistance R3 serves the size of Limited Current, and the input of amplitude size on signal of input signal does not affect accordingly.
In addition, referring to shown in Fig. 4, is the structural representation of the utility model pre-processing module, and the current-limiting function in this pre-processing module mainly employs with two homotype triodes, utilize the metastable be voltage of triode as benchmark, current values is: I=Vbe/R3.
This [constant advantage is simple, and the numerical value of electric current can freely control, and does not also use special element, is conducive to the cost reducing product.
In addition, described drive circuit comprises driving chip and NOT gate chip, the input end of described NOT gate chip is connected with the second output terminal of described central control chip, the output terminal of described NOT gate chip is connected with the input end of described driving chip, first power input of described driving chip is connected with the first output terminal of described power supply bleeder circuit, the second source input end of described driving chip is connected with the second output terminal of described power supply bleeder circuit, the output terminal of described driving chip is connected with the second input end of described three-phase bridge.Described voltage and current detection circuit comprises testing module and current detection module at zero point, described motor respectively with described zero point testing module input end and the input end of current detection module be connected, described zero point, the output terminal of testing module was connected with the voltage detecting input end of described central control module, and the output terminal of described current detection module is connected with the current sense input of described central control module.Be provided with between described central control chip and described PWM output circuit and output signal puocessing module and export sampling module; The input end of described output signal puocessing module is connected with the 3rd output terminal of described central control chip, the output terminal of described output signal puocessing module is connected with the input end of described output sampling module, first output terminal of described output sampling module is connected with the sampled signal test end of described central control chip, second output terminal of described output sampling module is connected with the input end of described pwm signal output circuit, and the signal output part of described pwm signal output circuit is connected with described fan for vehicle.
Wherein, described motor is generally brshless DC motor.And whether described output signal puocessing module and described output sampling module are output in order to detect described controller meet the requirements, namely described controller whether fault is judged by exporting sampling, like this can when controller breaks down, be transferred to user in real time, to improve man-machine interaction level.
Referring to shown in Fig. 5, is the structural representation of signal output module of the present utility model.Described pwm signal output circuit comprises the 5th triode T5, 6th triode T6, 7th triode T7, 9th resistance R9, tenth resistance R10, 11 resistance R11 and the 6th diode D6, second output terminal of described output sampling module is connected with the base stage of the 7th described triode T7, the grounded-emitter connection of the 7th described triode T7, the collector electrode of the 7th described triode T7 is connected with the first end of the 11 described resistance R11, second end of the 11 described resistance R11, the first end of the 9th resistance R9, the collector electrode of the 5th triode T5, the base stage of the 6th triode T6 is connected, second end of the 9th described resistance R9, the first end of the tenth resistance R10, emitter and the power supply of the 5th triode T5 are connected, the base stage of the 5th described triode T5, the emitter of the 6th triode T6, second end of the tenth resistance R10 is connected, and the collector electrode of the 6th described triode T6 is connected with the positive input of the 6th described diode D6, and the inverting input of the 6th described diode D6 is connected with described fan for vehicle.
Wherein, if current limliting is 100mA is example, the value of R10=Vbe/100mA, R9 does not affect output.
The specific works principle of the utility model vehicle cooling fan controller is as follows:
The voltage that vehicle cooling fan controller is powered directly supplies the busbar voltage of three-phase bridge (three-phase bridge described herein can be H bridge) as inversion by a road after counnter attack switch, after another road supply electronic switch, supply again power supply passed part below; Electronic switch is controlled by pwm signal and derives from the control signal of central control chip MCU.Pwm signal gives integration module integration after pre-processing module, and signal one tunnel after integration controls the switch of electronic switch through Q9, and another road is delivered to central control chip MCU and carried out implementation strategy control by Q8.The motor control signal that central control chip MCU exports is given 4935 chips and is worked to drive the MOSFET of three-phase bridge after 74HC04 (NOT gate chip) process.The zero cross signal and the current signal that derive from brshless DC motor BLDCM give central control chip MCU process after processing of circuit.Fault signal gives outside after being sent by central control chip MCU confirmation after Fault processing circuit processes, correctly sends in order to ensure this signal, gives central control chip MCU and confirm after exporting sampling module and detecting.
Have employed the vehicle cooling fan controller in this model utility, corresponding cooling, oil circuit, fan system is made to can be implemented in cold car, hot car, accurate output under the various working such as acceleration, the feedback to the output control under different operating mode and fault state own is realized by the input output of pwm signal in controller, the energy consumption in stand-by power consumption and driving can be effectively reduced, improve the reliability of system simultaneously, can feed back when controller breaks down in time and report process, effectively improve traffic safety.
Vehicle cooling fan controller in the utility model adds the anti-reverse protection of N-channel MOS FET anode on the scheme basis of conventional motors controller, prevents electric power polarity from connecing the anti-damage caused controller; Secondly PWM input wakes dormancy up, is waken up by dutycycle; Also carry out speed governing part input PWM voltage variable by dutycycle in addition; Finally by having current-limiting protection function PWM output circuit feedback real-time running state, the accurately and reliably operation of supervisory control device.
In the technological scheme of vehicle cooling fan controller of the present utility model, each wherein included function module and modular unit all can correspond to the particular hardware circuit in integrated circuit structure, therefore the improvement of particular hardware circuit is only related to, hardware components not only belongs to the carrier performing control software design or computer program, therefore solve corresponding technical problem and obtain the application that corresponding technique effect do not relate to any control software design or computer program yet, that is, the utility model only utilizes the improvement of the hardware circuit aspect involved by these modules and unit namely can solve technical problem to be solved, and obtain corresponding technique effect, and do not need auxiliary namely can realize corresponding function with specific control software design or computer program.
Above-described embodiment is this patent preferred embodiment; not be used for limiting practical range of the present utility model; those skilled in the art is under the prerequisite not departing from the utility model principle; the improvement done, change, combination, substitute etc., all belong within the utility model claim scope required for protection.
In this description, the utility model is described with reference to its specific embodiment.But, still can make various amendment and conversion obviously and not deviate from spirit and scope of the present utility model.Therefore, specification and accompanying drawing are regarded in an illustrative, rather than a restrictive.
Claims (9)
1. a vehicle cooling fan controller, described controller comprises central control chip, pwm signal input circlult and pwm signal output circuit, it is characterized in that, described controller also comprises circuit for preventing reverse connection of power supply, electronic switch, drive circuit, power supply bleeder circuit, three-phase bridge, motor and voltage and current detection circuit, the input end of described circuit for preventing reverse connection of power supply is connected with power supply, the output terminal of described circuit for preventing reverse connection of power supply is connected with the first end of described electronic switch and the first input end of three-phase bridge respectively, first output terminal of described central control chip and the first output terminal of pwm signal input circlult are connected with the control end of described electronic switch respectively, second end of described electronic switch is connected with the input end of described power supply bleeder circuit, first output terminal of described power supply bleeder circuit is connected with described drive circuit and central control chip respectively, second output terminal of described power supply bleeder circuit is connected with described drive circuit and central control chip respectively, the first input end of described central control chip is connected with the second output terminal of described pwm signal input circlult, second output terminal of described central control chip is connected with described drive circuit, the output terminal of described drive circuit is connected with the second input end of described three-phase bridge, the output terminal of described three-phase bridge is connected with the input end of described motor, the output terminal of described motor is connected with the input end of described voltage and current detection circuit, the voltage output end of described voltage and current detection circuit and current output terminal are connected with the measure voltage & current input end of described central control chip respectively, 3rd output terminal of described central control unit is connected with the input end of pwm signal output circuit, the output terminal of described pwm signal output circuit is connected with fan for vehicle.
2. vehicle cooling fan controller according to claim 1, it is characterized in that, described circuit for preventing reverse connection of power supply comprises metal-oxide-semiconductor (M1), the first resistance (R1), the second resistance (R2), the first diode (D1), the second diode (D2), the 3rd diode (D3), the 4th diode (D4) first electric capacity (C1) and the second electric capacity (C2); Positive input and the pwm signal input end of the positive input of the first end of described the second electric capacity (C2), the first end of the second resistance (R2), the 3rd diode (D3), the source electrode of metal-oxide-semiconductor (M1), the 4th diode (D4) are connected; The grid of the reverse input end of the second end of described the second electric capacity (C2), the second end of the second resistance (R2), the 3rd diode (D3), the normal phase input end of the first diode (D1), the reverse input end of the second diode and metal-oxide-semiconductor (M1) is connected; The first end of the reverse input end of described the first diode (D1), the positive input of the second diode (D2) and described the first electric capacity (C1) is connected, and the drain electrode of described metal-oxide-semiconductor (M1), the reverse input end of the 4th diode (D4), the second end of the first resistance (R1) are connected with the first input end of described three-phase bridge; Second end of described the first electric capacity (C1), the first end of the first resistance (R1) are connected with the first end of described electronic switch.
3. vehicle cooling fan controller according to claim 1, is characterized in that, described pwm signal input circlult comprises pre-processing module and integration module; The output terminal of described pre-processing module is connected with the input end of described integration module, and the output terminal of described integration module is connected with the first input end of described central control chip.
4. vehicle cooling fan controller according to claim 3, it is characterized in that, described pre-processing module comprises the first triode (T1), the second triode (T2), the 3rd resistance (R3) and the 4th resistance (R4), the first end of the 4th described resistance (R4), collector electrode and the PWM input signal of the first triode (T1) are connected, the base stage of described the first triode (T1), the collector electrode of the second triode (T2) and the second end of the 4th described resistance (R4) are connected, the emitter of described the first triode (T1), the base stage of the second triode (T2) and the first end of the 3rd described resistance (R3) are connected, the emitter of described the second triode (T2), second end of the 3rd resistance (R3), the input end of described integration module is connected.
5. vehicle cooling fan controller according to claim 3, it is characterized in that, described integration module comprises the 5th diode (D5), the 5th resistance (R5), the 6th resistance (R6), the 7th resistance (R7), the 8th resistance (R8), the 3rd triode (T3), the 4th triode (T4) and the 3rd electric capacity (C3), the 4th electric capacity (C4), the reverse input end of the 5th described diode (D5), the first end of the 5th resistance (R5) are connected with the output terminal of described pre-processing module, the positive input ground connection of the 5th described diode (D5), second end of the 5th described resistance (R5), the second end of the 6th resistance (R6), the first end of the 3rd electric capacity (C3), the first end of the 7th resistance (R7) are connected, second end ground connection of the 3rd described electric capacity (C3), the first end of the 6th described resistance (R6) is connected with the first end of the 4th described electric capacity (C4), and the second end of the 4th described electric capacity (C4) is connected with the first input end of central control chip, second end of the 7th described resistance (R7), the first end of the 8th resistance (R8) and the base stage of the 3rd described triode (T3) are connected, second end ground connection of the 8th described resistance (R8), the emitter base of the 3rd described triode (T3), the collector electrode of the 3rd described triode (T3), the described collector electrode of the 4th triode (T4) and the control end of described electronic switch are connected, the grounded-emitter connection of the 4th described triode (T4), the base stage of the 4th described triode (T4) is connected with the Enable Pin of described central control chip.
6. vehicle cooling fan controller according to claim 1, it is characterized in that, described drive circuit comprises driving chip and six input NOT gate chip, the six described input input ends of NOT gate chip are connected with the second output terminal of described central control chip, the output terminal of six described input NOT gate chip is connected with the input end of described driving chip, first power input of described driving chip is connected with the first output terminal of described power supply bleeder circuit, the second source input end of described driving chip is connected with the second output terminal of described power supply bleeder circuit, the output terminal of described driving chip is connected with the second input end of described three-phase bridge.
7. vehicle cooling fan controller according to claim 1, it is characterized in that, described voltage and current detection circuit comprises testing module and current detection module at zero point, described motor respectively with described zero point testing module input end and the input end of current detection module be connected, described zero point, the output terminal of testing module was connected with the voltage detecting input end of described central control module, and the output terminal of described current detection module is connected with the current sense input of described central control module.
8. vehicle cooling fan controller according to claim 1, is characterized in that, is also provided with and outputs signal puocessing module and export sampling module between described central control chip and described PWM output circuit; The input end of described output signal puocessing module is connected with the 3rd output terminal of described central control chip, the output terminal of described output signal puocessing module is connected with the input end of described output sampling module, first output terminal of described output sampling module is connected with the sampled signal test end of described central control chip, second output terminal of described output sampling module is connected with the input end of described pwm signal output circuit, and the signal output part of described pwm signal output circuit is connected with described fan for vehicle.
9. vehicle cooling fan controller according to claim 8, it is characterized in that, described pwm signal output circuit comprises the 5th triode (T5), 6th triode (T6), 7th triode (T7), 9th resistance (R9), tenth resistance (R10), 11 resistance (R11) and the 6th diode (D6), second output terminal of described output sampling module is connected with the base stage of the 7th described triode (T7), the grounded-emitter connection of the 7th described triode (T7), the collector electrode of the 7th described triode (T7) is connected with the first end of the 11 described resistance (R11), second end of the 11 described resistance (R11), the first end of the 9th resistance (R9), the collector electrode of the 5th triode (T5), the base stage of the 6th triode (T6) is connected, second end of the 9th described resistance (R9), the first end of the tenth resistance (R10), emitter and the power supply of the 5th triode (T5) are connected, the base stage of the 5th described triode (T5), the emitter of the 6th triode (T6), second end of the tenth resistance (R10) is connected, the collector electrode of the 6th described triode (T6) is connected with the positive input of the 6th described diode (D6), the inverting input of the 6th described diode (D6) is connected with described fan for vehicle.
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|---|---|---|---|
| CN201420716524.6U CN204327552U (en) | 2014-11-25 | 2014-11-25 | Vehicle cooling fan controller |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420716524.6U CN204327552U (en) | 2014-11-25 | 2014-11-25 | Vehicle cooling fan controller |
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| CN204327552U true CN204327552U (en) | 2015-05-13 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105553344A (en) * | 2016-01-18 | 2016-05-04 | 上海金脉电子科技有限公司 | Three-phase brushless motor controller without position sensor and control method of three-phase brushless motor controller |
| CN108594733A (en) * | 2018-07-18 | 2018-09-28 | 龙城电装（常州）有限公司 | Single pin multi signal cooling fan controller and its control method |
| CN110043502A (en) * | 2019-05-28 | 2019-07-23 | 深圳市泛邦通用科技有限公司 | Ceiling fan and its controller |
| CN111220655A (en) * | 2020-01-17 | 2020-06-02 | 北京环拓科技有限公司 | Monitor and monitoring method for automatically calibrating zero point of negative oxygen ion sensor |
| CN111535915A (en) * | 2020-06-03 | 2020-08-14 | 龙城电装（常州）有限公司 | Control circuit for cooling fan controller |
| CN114584042A (en) * | 2022-04-29 | 2022-06-03 | 中汽创智科技有限公司 | Motor energy release circuit, circuit board, electronic control unit and vehicle |
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- 2014-11-25 CN CN201420716524.6U patent/CN204327552U/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105553344A (en) * | 2016-01-18 | 2016-05-04 | 上海金脉电子科技有限公司 | Three-phase brushless motor controller without position sensor and control method of three-phase brushless motor controller |
| CN108594733A (en) * | 2018-07-18 | 2018-09-28 | 龙城电装（常州）有限公司 | Single pin multi signal cooling fan controller and its control method |
| CN110043502A (en) * | 2019-05-28 | 2019-07-23 | 深圳市泛邦通用科技有限公司 | Ceiling fan and its controller |
| CN110043502B (en) * | 2019-05-28 | 2024-04-12 | 深圳市泛邦通用科技有限公司 | Ceiling fan and controller thereof |
| CN111220655A (en) * | 2020-01-17 | 2020-06-02 | 北京环拓科技有限公司 | Monitor and monitoring method for automatically calibrating zero point of negative oxygen ion sensor |
| CN111535915A (en) * | 2020-06-03 | 2020-08-14 | 龙城电装（常州）有限公司 | Control circuit for cooling fan controller |
| CN114584042A (en) * | 2022-04-29 | 2022-06-03 | 中汽创智科技有限公司 | Motor energy release circuit, circuit board, electronic control unit and vehicle |
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