CN209469604U

CN209469604U - A kind of modular vehicular high-power cooling fan control system

Info

Publication number: CN209469604U
Application number: CN201821230353.0U
Authority: CN
Inventors: 邹家浩
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-08-01
Filing date: 2018-08-01
Publication date: 2019-10-08
Anticipated expiration: 2028-08-01

Abstract

The utility model discloses a kind of modular vehicular high-power cooling fan control systems, including power module and control module, power module includes isolation/filter circuit, three phase bridge circuit and current sampling circuit, and control module includes single chip circuit, telecommunication circuit, predrive circuit, counter electromotive force circuit, decompression/voltage regulator circuit and bleeder circuit.The utility model proposes modular vehicular high-power cooling fan control system, control section and power section are separated from circuit theory, form power module and control module, facilitate transplanting and application, pass through modularization, it is convenient to the performance and shell dimension according to different blowers, designs the geomery of corresponding power circuit board and control circuit board；Power of fan difference only needs to change power module, and blower function difference only needs replacing control module；The software of the blower of different function only needs small change can be realized；Facilitate debugging and maintenance, saves development time and cost.

Description

A kind of modular vehicular high-power cooling fan control system

Technical field

It is special the utility model relates to arrive fuel automobile engine and new-energy automobile dynamical system heat abstractor technical field It is not related to a kind of modular vehicular high-power cooling fan control system.

Background technique

The either domestic car radiation blower still produced in the world, mostly uses greatly brush motor or brushless thoughts horse It reaches.This kind of motor control mode is simple, and the development cycle is short, but due to car radiation blower application environment rather harsh, leads to this Class fan life is greatly lowered；Therefore the trend developed using brushless sensorless motor at car radiation blower.Due to brushless nothing It is more complicated to feel air-blower control mode, therefore constrains the development of new product；In view of the above-mentioned problems, therefore proposing a kind of modularization Vehicular high-power cooling fan control system.

Utility model content

The purpose of this utility model is to provide a kind of modular vehicular high-power cooling fan control systems, and having can Easily according to the performance and shell dimension of different blowers, the shape ruler of corresponding power circuit board and control circuit board is designed Very little, power of fan difference only needs to change power module, and blower function difference only needs replacing control module, the blower of different function Software only need it is small change can be realized, facilitate debugging and maintenance, saved exploitation time and cost, to solve above-mentioned back The problem of being proposed in scape technology.

To achieve the above object, the utility model provides the following technical solutions: a kind of modular vehicular high-power heat dissipation Blower fan control system, including power module and control module, power module include isolation/filter circuit, three phase bridge circuit and electricity Sample circuit is flowed, control module includes single chip circuit, telecommunication circuit, predrive circuit, counter electromotive force circuit, decompression/pressure stabilizing Circuit and bleeder circuit；Isolation/filter circuit picks up load power input interface, three phase bridge circuit and current sampling circuit with every Be connected from/filter circuit, three phase bridge circuit and current sampling circuit be isolated/filter circuit is connected with predrive circuit, drive in advance Dynamic circuit is connected with single chip circuit, and single chip circuit is connected with telecommunication circuit, and decompression/voltage regulator circuit is with single chip circuit and in advance Driving circuit is connected, and bleeder circuit is connected with single chip circuit and predrive circuit, counter electromotive force circuit and single chip circuit phase Even.

Preferably, isolation/filter circuit includes topping power inductance L1, electrolytic capacitor C28 and electrolytic capacitor C29, preposition The input terminal of power inductance L1, which picks up, carries power input interface VBAT, the output end and electrolytic capacitor C28 of topping power inductance L1 It is in parallel with electrolytic capacitor C29, and connect power input output interface VHD, the output end ground connection of electrolytic capacitor C28, power inductance L1, electrolytic capacitor C28 and electrolytic capacitor C29 constitute LC filter circuit.

Preferably, three phase bridge circuit includes field-effect tube Q1-Q6, and current sampling circuit includes power samples resistance R8 and electricity Sampling Interface SL is flowed, the drain D of field-effect tube Q1, Q3, Q5 are connected with power supply VHD, the grid G point of field-effect tube Q1, Q3, Q5 Be not connected with upper bridge driving interface HG0-HG2, the source electrode of field-effect tube Q1, Q3, Q5 respectively with three-phase signal interface PHA_U, PHA_V, PHA_W are connected；The drain D of field-effect tube Q2, Q4, Q6 respectively with three-phase signal interface PHA_U, PHA_V, PHA_W phase Even, the grid G of field-effect tube Q2, Q4, Q6 are connected with lower bridge driving interface LG0-LG2 respectively, and the three of field-effect tube Q2, Q4, Q6 A source S is connected with power samples resistance R8 and current sample interface SL, the output end ground connection of power samples resistance R8.

Preferably, field-effect tube Q1-Q6 is all made of high-power N-channel MOS FET field-effect tube.

Preferably, single chip circuit includes chip U1 and programming interface CN1, and chip U1 model is resistant to high temperature, is used for nothing The foot 6 of the MKE02Z64VLD4 of brush motor control, chip U1 meet magnetic bead L2 and meet VCC, and the output termination capacitor C50 of magnetic bead L2 connects Ground, the foot 5 and foot 28 of chip U1 connect capacitor C51 ground connection, the input termination of the both ends shunt-wound capacitance C52 of capacitor C51, capacitor C51 The pin 9 and pin 10 of VCC, chip U1 meet ceramic resonator Y1 ground connection, the both ends of ceramic resonator Y1 and connecting resistance R23, compile The foot 2 of journey interface CN1 is connected with the foot 44 of chip U1, and the foot 4 of programming interface CN1 is connected with the foot 42 of chip U1, programming interface The foot 6 of CN1 is connected with the foot 43 of chip U1, and the foot 1 and foot 5 of programming interface CN1 is emulation/programmable device power pins, chip Foot 7, foot 8, foot 11 and the foot 27 of U1 is grounded.

Preferably, telecommunication circuit includes triode Q10 and triode Q11, the collector series connection resistance R24 of triode Q11 The foot 33 of chip U1 is connect, the input terminating resistor R20 of resistance R24 meets VCC, the emitter ground connection of triode Q11, triode Q11 Base stage concatenation magnetic bead L6 connect BUS terminal；The base stage of triode Q10 connects the foot 32 of chip U1, and the collector of triode Q10 connects Resistance R7 connects the base stage of triode Q11, the emitter ground connection of triode Q10, the input termination filter capacitor C20 of magnetic bead L6 and ESD diode D1 ground connection.

Preferably, predrive circuit includes chip U3, and chip U3 model vehicle advises the DRV8305NQPHPRQ1 of grade, chip The foot 1 of U3 connects the foot 16 of chip U1, and the 8 series resistor R5 of foot of chip U3 meets VCC, and the foot 8 of chip U3 exports PAULT signal, with The PAULT signal of the foot 26 of chip U1 connects, and the foot 13 series resistor R22 and resistance R5 of chip U3 is simultaneously connected to high level VCC, The 15 serial capacitance C10 of foot of chip U3 is grounded, and the 16 series resistor R55 of foot of chip U3 connects the foot 24 of chip U1, chip U3's Foot 19-22 ground connection, the input termination capacitor C8 ground connection of resistance R55, the foot 48 of chip U3 connect capacitor C16 ground connection, and capacitor C16's is defeated Enter terminating resistor R34 and meet VCC, the foot 45 of chip U3 is grounded, and the foot 46 of chip U3 connects capacitor C15 ground connection, and the foot 41 of chip U3 connects Capacitor C12 ground connection, the input of capacitor C12 terminate source VHD, the input termination capacitor C11 ground connection of capacitor C12, the foot 44 of chip U3 The input terminal of capacitor C12 is connect, the foot 43 of chip U3 connects capacitor C13 pin 42, and the foot 40 of chip U3 connects capacitor C14 pin 39, core The foot 38 of piece U3 connects the input terminal that capacitor C21 meets capacitor C11, and the foot 37 of chip U3 connects capacitor C17 ground connection, and the foot 24 of chip U3 connects Resistance R3 pin 26,23 connecting resistance R2 of the foot ground connection of chip U3, the input terminal of resistance R3 are connected with the input terminal of resistance R2；Core The foot 12-15 and 19-20 of piece U1 meet the foot 2-7 of chip U3 respectively；The foot 26 of chip U3 connects the current sample of current sampling circuit Interface SL, three-phase signal interface PHA_U, PHA_V, PHA_W of three phase bridge circuit connect the foot 35 of chip U3, foot 30, foot respectively 27, the upper bridge driving interface HG0 of three phase bridge circuit connect the foot 36 of chip U3, and the upper bridge driving interface HG1 of three phase bridge circuit connects core The foot 29 of piece U3, the upper bridge driving interface HG2 of three phase bridge circuit connect the foot 28 of chip U3, the lower bridge driving interface of three phase bridge circuit LG0 connects the foot 33 of chip U3, and the lower bridge driving interface LG1 of three phase bridge circuit connects the foot 32 of chip U3, the lower bridge of three phase bridge circuit Driving interface LG2 connects the foot 25 of chip U3.

Preferably, counter electromotive force circuit includes voltage comparator U6-A, voltage comparator U6-B and voltage comparator U6-C, The 5 series resistor R1 of foot of voltage comparator U6-A connects the foot 35 of chip U3, the output terminating resistor R31 ground connection of resistance R1, resistance The both ends shunt-wound capacitance C23 of R31, the foot 4 of voltage comparator U6-A connect the foot 6 and voltage comparator U6- of voltage comparator U6-B The foot 8 of C, the output terminating resistor R33 of resistance R1 connect the foot 4 of voltage comparator U6-A；The foot 7 of voltage comparator U6-B concatenates electricity Resistance R26 connects the foot 30 of chip U3, the output terminating resistor R35 ground connection of resistance R26, the both ends shunt-wound capacitance C24 of resistance R35, electricity The output terminating resistor R37 of resistance R26 connects the foot 6 of voltage comparator U6-B；The 9 series resistor R38 of foot of voltage comparator U6-C connects The foot 27 of chip U3, the output terminating resistor R39 ground connection of resistance R38, the both ends shunt-wound capacitance C25 of resistance R39, resistance R38's Output terminating resistor R41 connects the foot 8 of voltage comparator U6-C, and the foot 2 of voltage comparator U6-A connects the foot 35 of chip U1, voltage ratio Foot 1 compared with device U6-B connects the foot 34 of chip U1, and the foot 14 of voltage comparator U6-C connects the foot 41 of chip U1.

Preferably, decompression/voltage regulator circuit includes chip U2, chip U2 model TPS7B6933QDBVRQ1, chip U2's Foot 1 connects capacitor C18 ground connection, and the input of capacitor C18 terminates power input output interface VHD, foot 3 and foot 4 ground connection of chip U2, core The foot 5 of piece U2 connects capacitor C1 ground connection, and the input of the both ends shunt-wound capacitance C2 capacitor C2 of capacitor C1 terminates VCC.

Preferably, bleeder circuit includes resistance R30, resistance R29 and capacitor C9, and resistance R30 and resistance R29 connect, resistance The input of R30 terminates power input output interface VHD, the output end ground connection of resistance R29, the input terminating resistor R30 of capacitor C9 Output end, capacitor C9 output end ground connection, capacitor C9 input chip termination U1 foot 22.

Compared with prior art, the utility model has the beneficial effects that the utility model proposes it is modular vehicle-mounted big Power cooling fan control system separates control section and power section from circuit theory, forms power module and control Module facilitates transplanting and application, and circuit theory is modular to be advantageous in that:

(1) it is convenient to the performance and shell dimension according to different blowers, designs corresponding power circuit board and control electricity The geomery of road plate.

(2) power of fan difference only needs to change power module, and blower function difference only needs replacing control module, do not need All redesign.

(3) maximumlly by blower drive software modularization, the software of the blower of different function only needs small change It realizes.

(4) facilitate debugging and maintenance, save development time and cost.

Detailed description of the invention

Fig. 1 is the integral module figure of the utility model；

Fig. 2 is the isolation/filter circuit figure of the utility model；

Fig. 3 is the three phase bridge circuit and current sampling circuit figure of the utility model；

Fig. 4 is the single chip circuit figure of the utility model；

Fig. 5 is the telecommunication circuit figure of the utility model；

Fig. 6 is the predrive circuit diagram of the utility model；

Fig. 7 is the counter electromotive force circuit diagram of the utility model；

Fig. 8 is the decompression/voltage regulator circuit figure of the utility model；

Fig. 9 is the bleeder circuit figure of the utility model；

Figure 10 is the circuit board figure of the interface position one of the utility model；

Figure 11 is the circuit board figure of the interface position two of the utility model；

Figure 12 is the circuit board figure of the interface position three of the utility model；

In figure: 1, power module；2, control module；3, isolation/filter circuit, 4, three phase bridge circuit；5, current sample electricity Road；6, single chip circuit；7, telecommunication circuit；8, predrive circuit；9, counter electromotive force circuit；10, decompression/voltage regulator circuit；11, divide Volt circuit.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

Please refer to Fig. 1-12, a kind of modular vehicular high-power cooling fan control system, including power module 1 and control Molding block 2, power module 1 include isolation/filter circuit 3, three phase bridge circuit 4 and current sampling circuit 5, and control module 2 includes Single chip circuit 6, telecommunication circuit 7, predrive circuit 8, counter electromotive force circuit 9, decompression/voltage regulator circuit 10 and bleeder circuit 11； Isolation/filter circuit 3 pick up load power input interface, three phase bridge circuit 4 and current sampling circuit 5 with/3 phase of filter circuit is isolated Even, three phase bridge circuit 4 and current sampling circuit 5 be isolated/filter circuit 3 is connected with predrive circuit 8, predrive circuit 8 and Single chip circuit 6 is connected, and single chip circuit 6 is connected with telecommunication circuit 7, decompression/voltage regulator circuit 10 and single chip circuit 6 and pre- drive Dynamic circuit 8 is connected, and bleeder circuit 11 is connected with single chip circuit 6 and predrive circuit 8, and counter electromotive force circuit 9 and monolithic are electromechanical Road 6 is connected.

Isolation/filter circuit 3 includes topping power inductance L1, electrolytic capacitor C28 and electrolytic capacitor C29, topping power electricity The input terminal of sense L1, which picks up, carries power input interface VBAT, the output end of topping power inductance L1 and electrolytic capacitor C28 and electrolysis Capacitor C29 is in parallel, and connects power input output interface VHD, the output end ground connection of electrolytic capacitor C28, power inductance L1, electrolysis Capacitor C28 and electrolytic capacitor C29 constitute LC filter circuit, be after being connected with power input output interface VHD power module 1 and 2 out-put supply of control module, topping power inductance L1 have runner wagon because its inductance and internal resistance increase with frequency and increased The effect of power supply and modular power source is carried, and for low-frequency power almost without pressure drop.

Three phase bridge circuit 4 includes field-effect tube Q1-Q6, and field-effect tube Q1-Q6 is all made of high-power N-channel MOS FET Effect pipe, current sampling circuit 5 includes power samples resistance R8 and current sample interface SL, field-effect tube Q1, Q3, Q5 are respectively The upper bridge MOSFET of motor U, V, W three-phase, the drain D of field-effect tube Q1, Q3, Q5 are connected with power supply VHD, field-effect tube Q1, The grid G of Q3, Q5 are connected with upper bridge driving interface HG0-HG2 respectively, and the source electrode of field-effect tube Q1, Q3, Q5 are believed with three respectively Number interface PHA_U, PHA_V, PHA_W are connected；Field-effect tube Q2, Q4, Q6 are respectively the lower bridge MOSFET of motor U, V, W three-phase, The drain D of field-effect tube Q2, Q4, Q6 are connected with three-phase signal interface PHA_U, PHA_V, PHA_W respectively, field-effect tube Q2, Q4, The grid G of Q6 is connected with lower bridge driving interface LG0-LG2 respectively, three source Ss and power samples of field-effect tube Q2, Q4, Q6 Resistance R8 is connected with current sample interface SL, feedback current sampled signal, the output end ground connection of power samples resistance R8.

Single chip circuit 6 includes chip U1 and programming interface CN1, and chip U1 model is resistant to high temperature, is used for brushless motor The foot 6 of the MKE02Z64VLD4 of control, chip U1 meet magnetic bead L2 and connect VCC, the output termination capacitor C50 ground connection of magnetic bead L2, magnetic bead L2 and capacitor C50 forms lc circuit, and magnetic bead L2 and VCC are connected to power input, what magnetic bead L2 and capacitor C50 were connected to form Isolation/filter circuit is connected with the foot 6 of chip U1, provides power supply, the foot 5 and foot 28 of chip U1 for the AD/DA module of chip U1 Capacitor C51 ground connection is connect, the input of the both ends shunt-wound capacitance C52 of capacitor C51, capacitor C51 terminate VCC, provides power supply, capacitor for U1 Foot 5, the foot 28 of C51, capacitor C52 and chip U1 are connected to power pins filtering, and the pin 9 and pin 10 of chip U1 connects ceramic vibration Device Y1 ground connection, the both ends of ceramic resonator Y1 and connecting resistance R23 are swung, provides clock source for chip U1；Programming interface CN1 is software Emulation, debugging and programming provide interface, and the foot 1 and foot 5 of programming interface CN1 is emulation/programmable device power pins, programming interface The foot 2 of CN1 is connected with the foot 44 of chip U1, and the foot 4 of programming interface CN1 is connected with the foot 42 of chip U1, the foot of programming interface CN1 6 are connected with the foot 43 of chip U1, and the foot 1 and foot 5 of programming interface CN1 is emulation/programmable device power pins, the foot of chip U1 7, foot 8, foot 11 and foot 27 are grounded.

Telecommunication circuit 7 includes triode Q10 and triode Q11, and the collector series connection resistance R24 of triode Q11 connects chip The foot 33 of U1, the input terminating resistor R20 of resistance R24 connect VCC, the emitter ground connection of triode Q11, the base stage of triode Q11 Concatenation magnetic bead L6 connects BUS terminal；The base stage of triode Q10 connects the foot 32 of chip U1, and the collector connecting resistance R7 of triode Q10 connects Triode Q11 base stage, the emitter ground connection of triode Q10, the input of magnetic bead L6 terminate filter capacitor C20 and ESD diode D1 Ground connection, magnetic bead L6 and capacitor C20 are connected to form isolation/filtering lc circuit, and ESD diode D1 and capacitor C20 parallel connection mention for circuit For antistatic protection, triode Q11 be connected with resistance R20, resistance R24 vehicle bus level conversion be single-chip microcontroller level, The bus of resistance R24 and single-chip microcontroller receives pin BUS_RX and is connected to form bus reception circuit, triode Q10 and resistance R7 phase It is even vehicle bus level the level conversion of chip U1, the base stage of triode Q10 and the bus of chip U1 send pin BUS_ TX is connected to form bus transmitting line.

Predrive circuit 8 includes chip U3, and chip U3 model vehicle advises the DRV8305NQPHPRQ1 of grade, the foot of chip U3 25-36 is the driving foot of power module 1, and the foot 1 of chip U3 connects the foot 16 of chip U1, and the 8 series resistor R5 of foot of chip U3 connects The foot 8 of VCC, chip U3 export PAULT signal, connect with the PAULT signal of the foot 26 of chip U1, the foot 13 of chip U3 concatenates electricity Resistance R22 and resistance R5 is simultaneously connected to high level VCC, and resistance R5 is the pull-up resistor of chip U3 foot 8, and resistance R22 is chip U3 foot 13 pull-up resistor, 15 serial capacitance C10 of the foot ground connection of chip U3, the 16 series resistor R55 of foot of chip U3 connect the foot of chip U1 24, for detecting electric current, the foot 19-22 ground connection of chip U3, the input termination capacitor C8 ground connection of resistance R55, capacitor C8 is for going Noise, serial capacitance C22 denoising between the foot 23 and foot 24 of chip U3, the foot 48 of chip U3 meet capacitor C16 ground connection, capacitor C16 Input terminating resistor R34 connect the foot 48 of VCC, low-tension supply VCC series resistance R34 and chip U3 and be connected to predrive circuit 8 Low-tension supply is provided, the foot 45 of chip U3 is grounded, and the foot 46 of chip U3 connects capacitor C15 ground connection, and capacitor C15 is used for power filter, The foot 41 of chip U3 connects capacitor C12 ground connection, and the foot 41 of the high voltage power supply VHD of capacitor C12, chip U3 are connected with high voltage power supply VHD High voltage power supply, the input termination capacitor C11 ground connection of capacitor C12 are provided for predrive circuit 8, the foot 44 of chip U3 meets capacitor C12 Input terminal, the foot 43 of chip U3 connects capacitor C13 pin 42, and the foot 40 of chip U3 connects capacitor C14 pin 39, the foot 38 of chip U3 The input terminal that capacitor C21 meets capacitor C11 is connect, capacitor C11 in parallel and capacitor C12 are used for hv filtering, and the foot 37 of chip U3 connects Capacitor C17 ground connection, the 24 connecting resistance R3 pin 26 of foot of chip U3,23 connecting resistance R2 of the foot ground connection of chip U3, the input of resistance R3 End is connected with the input terminal of resistance R2；The foot 12-15 and 19-20 of chip U1 meet the foot 2-7 of chip U3 respectively, defeated through 6 road PWM Predrive circuit 8 is arrived out；The foot 26 of chip U3 meets the current sample interface SL of current sampling circuit 5, and the three of three phase bridge circuit 4 Phase signals interface PHA_U, PHA_V, PHA_W connect the foot 35, foot 30, foot 27 of chip U3 respectively, and the upper bridge of three phase bridge circuit 4 drives Mobile interface HG0 connects the foot 36 of chip U3, and the upper bridge driving interface HG1 of three phase bridge circuit 4 connects the foot 29 of chip U3, three phase bridge circuit 4 upper bridge driving interface HG2 connects the foot 28 of chip U3, and the lower bridge driving interface LG0 of three phase bridge circuit 4 connects the foot 33 of chip U3, The lower bridge driving interface LG1 of three phase bridge circuit 4 connects the foot 32 of chip U3, and the lower bridge driving interface LG2 of three phase bridge circuit 4 connects core The foot 25 of piece U3, the foot 47 of chip U3 are connected with the foot 18 of chip U1, and the foot 26 of chip U1 is connected with the foot 8 of chip U3, U1's Foot 17, foot 38, foot 39 and foot 40 are connected with the foot 9 of chip U3, foot 11, foot 10, foot 12 respectively, the deposit to predrive circuit 8 Device is written and read.

Counter electromotive force circuit 9 includes voltage comparator U6-A, voltage comparator U6-B and voltage comparator U6-C, voltage The 5 series resistor R1 of foot of comparator U6-A connects the foot 35 of chip U3, and the output terminating resistor R31 of resistance R1 is grounded, resistance R31's The foot 4 of both ends shunt-wound capacitance C23, voltage comparator U6-A connect the foot 6 of voltage comparator U6-B and the foot of voltage comparator U6-C The output terminating resistor R33 of 8, resistance R1 connect the foot 4 of voltage comparator U6-A；The 7 series resistor R26 of foot of voltage comparator U6-B Meet the foot 30 of chip U3, the output terminating resistor R35 ground connection of resistance R26, the both ends shunt-wound capacitance C24 of resistance R35, resistance R26 Output terminating resistor R37 connect the foot 6 of voltage comparator U6-B；The 9 series resistor R38 of foot of voltage comparator U6-C meets chip U3 Foot 27, resistance R38 output terminating resistor R39 ground connection, the both ends shunt-wound capacitance C25 of resistance R39, the output end of resistance R38 Connecting resistance R41 connects the foot 8 of voltage comparator U6-C, and the foot 2 of voltage comparator U6-A connects the foot 35 of chip U1, voltage comparator The foot 1 of U6-B connects the foot 34 of chip U1, and the foot 14 of voltage comparator U6-C connects the foot 41 of chip U1, resistance R33, resistance R37, It is same with the foot 8 of the foot 4 of voltage comparator U6-A, the foot 6 of voltage comparator U6-B, voltage comparator U6-C after resistance R41 is in parallel When be connected to form the mid-point voltage output ends of three signals, three-phase voltage and mid-point voltage export obtain counter electromotive force and phase more afterwards Position signal；Since the output of voltage comparator U6-A, voltage comparator U6-B and voltage comparator U6-C are open-drain output, so The foot 2 of voltage comparator U6-A is connected to pull-up resistor R42, and connects capacitor C26 for removing circuit noise, voltage comparator The foot 1 of U6-B is connected to pull-up resistor R43, and connects capacitor C37 for removing circuit noise, the foot 14 of voltage comparator U6-C It is connected to pull-up resistor R44, and connects capacitor C38 for removing circuit noise.

Decompression/voltage regulator circuit 10 includes chip U2, and the foot 1 of chip U2 model TPS7B6933QDBVRQ1, chip U2 connect Capacitor C18 ground connection, the input of capacitor C18 terminate power input output interface VHD, foot 3 and foot 4 ground connection of chip U2, chip U2 Foot 5 connect capacitor C1 ground connection, the input of the both ends shunt-wound capacitance C2 capacitor C2 of capacitor C1 terminates VCC.

Bleeder circuit 11 includes resistance R30, resistance R29 and capacitor C9, and resistance R30 and resistance R29 connect, resistance R30's The output end ground connection of input termination power input output interface VHD, resistance R29, the output of the input terminating resistor R30 of capacitor C9 End, the output end ground connection of capacitor C9, the foot 22 of the input chip termination U1 of capacitor C9, the foot 22 of chip U1 connect bleeder circuit 11 V_SENS is used for collection voltages signal for detecting voltage, the ADC pin of the output V_SENS connection chip U1 of bleeder circuit 11.

The modular vehicular high-power cooling fan control system, vehicle power supply input interface are power module 1 and control Molding block 2 provides power supply VBAT, and VBAT is VHD by the power supply after 3 isolation filter of isolation/filter circuit, and VHD is bleeder circuit 11, decompression/voltage regulator circuit 10 and predrive circuit 8 provide reliable power supply；VHD obtains analog voltage after passing through bleeder circuit 11 The chip U1 detection of single chip circuit 6 is inputed to, and supply voltage value is obtained by the operation of chip U1；VHD passes through decompression/steady Volt circuit 10 obtains low-tension supply supply single chip circuit 6 and predrive circuit 8；Telecommunication circuit 7 is vehicle-carrying communication route and core Level conversion is provided between piece U1；Single chip circuit 6 is written and read by register of the bus to predrive circuit 8 and completes to hand over Mutually；Single chip circuit 6 exports 6 road pwm signals to predrive circuit 8；Predrive circuit 8 is according to the setting of register 6 tunnels Pwm signal is converted into motor drive signal HG0-2 and LG0-2 and exports to three phase bridge circuit 4, while feedback error is interrupted to monolithic Electromechanical road 6.Predrive circuit 8 is by three-phase signal PHA_U/V/W to three phase bridge circuit 4, and three-phase circuit 4 is by current sampling signal SL is to predrive circuit 8.After the amplifier amplification that SL passes through predrive circuit 8, the analog quantity of obtained electric current is to single chip circuit 6 detections, and current value is obtained by the operation of chip U1,4 feedback motor of three phase bridge circuit is by signal PHA_U/V/W to anti-electricity Kinetic potential circuit 9 is detected by obtaining counter electromotive force and phase signal HALL_U/V/W after circuit conversion to chip U1, and monolithic is electromechanical Road 6, predrive circuit 8, three phase bridge circuit 4, counter electromotive force circuit 9 and the interaction between them form a complete horse Up to control closed loop circuit；In order to adapt to different blowers and corresponding size, control section and power part from circuit theory Separation forms power module 1 and control module 3, facilitates transplanting and application, circuit theory is modular to be advantageous in that: (1) may be used Easily according to the performance and shell dimension of different blowers, the shape ruler of corresponding power circuit board and control circuit board is designed It is very little；(2) power of fan difference only needs to change power module 1, and blower function difference only needs replacing control module 2, does not need complete Portion redesigns；(3) maximumlly by blower drive software modularization, the software of the blower of different function only needs small change i.e. It can be achieved；(4) facilitate debugging and maintenance, save development time and cost.

In conclusion the utility model proposes modular vehicular high-power cooling fan control system, from circuit original Control section and power section are separated in reason, power module 1 and control module 2 is formed, facilitates transplanting and application, circuit theory It is modular to be advantageous in that: (1) to be convenient to the performance and shell dimension according to different blowers, design corresponding power circuit board With the geomery of control circuit board；(2) power of fan difference only needs to change power module 1, and blower function is different only to be needed more Control module 2 is changed, whole redesigns are not needed；(3) maximumlly by blower drive software modularization, the blower of different function Software only need it is small change can be realized；(4) facilitate debugging and maintenance, save development time and cost.

The preferable specific embodiment of the above, only the utility model, but the protection scope of the utility model is not It is confined to this, anyone skilled in the art is within the technical scope disclosed by the utility model, practical according to this Novel technical solution and its utility model design are subject to equivalent substitution or change, should all cover the protection model in the utility model Within enclosing.

Claims

1. a kind of modular vehicular high-power cooling fan control system, which is characterized in that including power module (1) and control Module (2), power module (1) include isolation/filter circuit (3), three phase bridge circuit (4) and current sampling circuit (5), control mould Block (2) includes single chip circuit (6), telecommunication circuit (7), predrive circuit (8), counter electromotive force circuit (9), decompression/pressure stabilizing electricity Road (10) and bleeder circuit (11)；Isolation/filter circuit (3) picks up load power input interface, and three phase bridge circuit (4) and electric current are adopted Sample circuit (5) be isolated/filter circuit (3) is connected, three phase bridge circuit (4) and current sampling circuit (5) with/filter circuit is isolated (3) be connected with predrive circuit (8), predrive circuit (8) is connected with single chip circuit (6), single chip circuit (6) with communicate electricity Road (7) be connected, decompression/voltage regulator circuit (10) is connected with single chip circuit (6) and predrive circuit (8), bleeder circuit (11) and Single chip circuit (6) and predrive circuit (8) are connected, and counter electromotive force circuit (9) is connected with single chip circuit (6).

2. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: every It include topping power inductance L1, electrolytic capacitor C28 and electrolytic capacitor C29 from/filter circuit (3), topping power inductance L1's is defeated Enter to terminate vehicle power supply input interface VBAT, the output end and electrolytic capacitor C28 and electrolytic capacitor C29 of topping power inductance L1 is simultaneously Connection, and connect power input output interface VHD, the output end ground connection of electrolytic capacitor C28, power inductance L1, electrolytic capacitor C28 and Electrolytic capacitor C29 constitutes LC filter circuit.

3. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: three-phase Bridge circuit (4) includes field-effect tube Q1-Q6, and current sampling circuit (5) includes power samples resistance R8 and current sample interface SL, The drain D of field-effect tube Q1, Q3, Q5 are connected with power supply VHD, and the grid G of field-effect tube Q1, Q3, Q5 drive with upper bridge respectively Interface HG0-HG2 be connected, the source electrode of field-effect tube Q1, Q3, Q5 respectively with three-phase signal interface PHA_U, PHA_V, PHA_W phase Even；The drain D of field-effect tube Q2, Q4, Q6 are connected with three-phase signal interface PHA_U, PHA_V, PHA_W respectively, field-effect tube Q2, The grid G of Q4, Q6 are connected with lower bridge driving interface LG0-LG2 respectively, three source Ss and power of field-effect tube Q2, Q4, Q6 Sampling resistor R8 is connected with current sample interface SL, the output end ground connection of power samples resistance R8.

4. a kind of modular vehicular high-power cooling fan control system as claimed in claim 3, it is characterised in that: field effect Should pipe Q1-Q6 be all made of high-power N-channel MOS FET field-effect tube.

5. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: monolithic Electromechanical road (6) includes chip U1 and programming interface CN1, and chip U1 model is resistant to high temperature, for brushless motor control The foot 6 of MKE02Z64VLD4, chip U1 meet magnetic bead L2 and connect VCC, the output termination capacitor C50 ground connection of magnetic bead L2, the foot 5 of chip U1 Capacitor C51 ground connection is connect with foot 28, the input of the both ends shunt-wound capacitance C52 of capacitor C51, capacitor C51 terminate VCC, and chip U1's draws Foot 9 and pin 10 connect ceramic resonator Y1 ground connection, the both ends of ceramic resonator Y1 and connecting resistance R23, the foot 2 of programming interface CN1 It is connected with the foot 44 of chip U1, the foot 4 of programming interface CN1 is connected with the foot 42 of chip U1, the foot 6 and chip of programming interface CN1 The foot 43 of U1 is connected, and the foot 1 and foot 5 of programming interface CN1 is emulation/programmable device power pins, foot 7, the foot 8, foot of chip U1 11 and foot 27 be grounded.

6. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: communication Circuit (7) includes triode Q10 and triode Q11, and the collector series connection resistance R24 of triode Q11 connects the foot 33 of chip U1, electricity The input terminating resistor R20 of resistance R24 meets VCC, and the base stage concatenation magnetic bead L6 of the emitter ground connection of triode Q11, triode Q11 connects BUS terminal；The base stage of triode Q10 connects the foot 32 of chip U1, and the collector connecting resistance R7 of triode Q10 connects triode Q11's Base stage, the emitter ground connection of triode Q10, the input termination filter capacitor C20 and ESD diode D1 ground connection of magnetic bead L6.

7. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: pre- to drive Dynamic circuit (8) include chip U3, and chip U3 model vehicle advises the DRV8305NQPHPRQ1 of grade, and the foot 1 of chip U3 connects chip U1's Foot 16, the 8 series resistor R5 of foot of chip U3 meet VCC, and the foot 8 of chip U3 exports PAULT signal, with the foot 26 of chip U1 The connection of PAULT signal, the foot 13 series resistor R22 and resistance R5 of chip U3 are simultaneously connected to high level VCC, and the foot 15 of chip U3 concatenates Capacitor C10 ground connection, the 16 series resistor R55 of foot of chip U3 meet the foot 24 of chip U1, the foot 19-22 ground connection of chip U3, resistance R55 Input termination capacitor C8 ground connection, the foot 48 of chip U3 connects capacitor C16 ground connection, and the input terminating resistor R34 of capacitor C16 meets VCC, The foot 45 of chip U3 is grounded, and the foot 46 of chip U3 connects capacitor C15 ground connection, and the foot 41 of chip U3 meets capacitor C12 ground connection, capacitor C12 Input terminate source VHD, the input termination capacitor C11 ground connection of capacitor C12, the foot 44 of chip U3 connects the input terminal of capacitor C12, core The foot 43 of piece U3 connects capacitor C13 pin 42, and the foot 40 of chip U3 connects capacitor C14 pin 39, and the foot 38 of chip U3 meets capacitor C21 and connects The input terminal of capacitor C11, the foot 37 of chip U3 meet capacitor C17 and are grounded, the 24 connecting resistance R3 pin 26 of foot of chip U3, chip U3's 23 connecting resistance R2 of foot ground connection, the input terminal of resistance R3 are connected with the input terminal of resistance R2；The foot 12-15 and 19-20 of chip U1 points The foot 2-7 of chip U3 is not met；The foot 26 of chip U3 connects the current sample interface SL of current sampling circuit (5), three phase bridge circuit (4) Three-phase signal interface PHA_U, PHA_V, PHA_W connect the foot 35, foot 30, foot 27 of chip U3 respectively, three phase bridge circuit (4) it is upper Bridge driving interface HG0 connects the foot 36 of chip U3, and the upper bridge driving interface HG1 of three phase bridge circuit (4) connects the foot 29 of chip U3, three-phase The upper bridge driving interface HG2 of bridge circuit (4) connects the foot 28 of chip U3, and the lower bridge driving interface LG0 of three phase bridge circuit (4) connects chip The foot 33 of U3, the lower bridge driving interface LG1 of three phase bridge circuit (4) connect the foot 32 of chip U3, the lower bridge driving of three phase bridge circuit (4) Interface LG2 connects the foot 25 of chip U3.

8. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: anti-electricity Kinetic potential circuit (9) includes voltage comparator U6-A, voltage comparator U6-B and voltage comparator U6-C, voltage comparator U6-A's 5 series resistor R1 of foot connects the foot 35 of chip U3, the output terminating resistor R31 ground connection of resistance R1, the both ends shunt-wound capacitance of resistance R31 The foot 4 of C23, voltage comparator U6-A connect the foot 6 of voltage comparator U6-B and the foot 8 of voltage comparator U6-C, and resistance R1's is defeated Terminating resistor R33 connects the foot 4 of voltage comparator U6-A out；The 7 series resistor R26 of foot of voltage comparator U6-B connects the foot of chip U3 The output terminating resistor R35 of 30, resistance R26 are grounded, and the output of the both ends shunt-wound capacitance C24 of resistance R35, resistance R26 terminate electricity Resistance R37 connects the foot 6 of voltage comparator U6-B；The 9 series resistor R38 of foot of voltage comparator U6-C connects the foot 27 of chip U3, resistance The output terminating resistor R39 of R38 is grounded, and the output terminating resistor R41 of the both ends shunt-wound capacitance C25 of resistance R39, resistance R38 connect The foot 8 of voltage comparator U6-C, the foot 2 of voltage comparator U6-A connect the foot 35 of chip U1, and the foot 1 of voltage comparator U6-B connects core The foot 14 of the foot 34 of piece U1, voltage comparator U6-C connects the foot 41 of chip U1.

9. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: drop Pressure/voltage regulator circuit (10) includes chip U2, and the foot 1 of chip U2 model TPS7B6933QDBVRQ1, chip U2 meet capacitor C18 and connects Ground, the input of capacitor C18 terminate power input output interface VHD, foot 3 and foot 4 ground connection of chip U2, and the foot 5 of chip U2 connects electricity Hold C1 ground connection, the input of the both ends shunt-wound capacitance C2 capacitor C2 of capacitor C1 terminates VCC.

10. a kind of modular vehicular high-power cooling fan control system as described in claim 1, it is characterised in that: point Volt circuit (11) includes resistance R30, resistance R29 and capacitor C9, and resistance R30 and resistance R29 series connection, the input of resistance R30 terminate The output end of power input output interface VHD, resistance R29 are grounded, the output end of the input terminating resistor R30 of capacitor C9, capacitor The output end of C9 is grounded, the foot 22 of the input chip termination U1 of capacitor C9.