CN209592264U - A kind of power battery cooling system of pure electric vehicle logistic car - Google Patents
A kind of power battery cooling system of pure electric vehicle logistic car Download PDFInfo
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- CN209592264U CN209592264U CN201920564656.4U CN201920564656U CN209592264U CN 209592264 U CN209592264 U CN 209592264U CN 201920564656 U CN201920564656 U CN 201920564656U CN 209592264 U CN209592264 U CN 209592264U
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Abstract
The utility model provides a kind of power battery cooling system of pure electric vehicle logistic car, temperature sensing circuit, power circuit and the motor-drive circuit connecting including controller, respectively with the controller, the motor-drive circuit are also connect with electric water pump and electronic fan respectively.The utility model solves the problems, such as accurately obtain real-time temperature of powered cell in the power battery cooling system of existing pure electric vehicle logistic car, and not can solve the problem of being precisely controlled temperature of powered cell by designing above.The utility model structure is simple, has effectively achieved water cooling system heat dissipation uniformly, the effect that radiating efficiency is high and functional reliability is high, and improves the precision to temperature of powered cell control.
Description
Technical field
The utility model belongs to the technical field of battery heat dissipation more particularly to a kind of power battery of pure electric vehicle logistic car dissipates
Hot systems.
Background technique
Pure electric vehicle logistic car, especially pure electric vehicle van-type logistic car are the fast developments with new-energy automobile and occur
New market focus.Pure electric vehicle logistics drive system needs battery pack to provide power, also can constantly discharge in power battery work
A large amount of thermal energy, in all environmental factors, temperature influences maximum to the charge-discharge performance of battery, to many characteristics of battery
It will have an impact, therefore pure electric vehicle logistic car needs a set of power battery cooling system.Pure electric vehicle logistic car power battery dissipates
Hot common methods be it is air-cooled, battery side install cooling fan, internal battery pack arrangement air-cooled pipeline radiate, it is such
System there are problems that accurately obtaining real time temperature and control power battery, and not can solve and be precisely controlled power battery temperature
The problem of spending.
Utility model content
For above-mentioned deficiency in the prior art, a kind of power battery of pure electric vehicle logistic car provided by the utility model is scattered
Hot systems solve and cannot accurately obtain power battery real time temperature in the power battery cooling system of existing pure electric vehicle logistic car,
And the problem of temperature of powered cell cannot be accurately controlled.
In order to reach the goals above, the technical solution adopted in the utility model are as follows:
This programme provides a kind of power battery cooling system of pure electric vehicle logistic car, including controller, respectively with the control
Temperature sensing circuit, power circuit and the motor-drive circuit of device processed connection, the motor-drive circuit also respectively with it is electronic
Water pump and electronic fan connection.
The beneficial effects of the utility model are: water-cooling principle is utilized in the utility model, pass through temperature sensing circuit
In 6 temperature sensors power battery temperature is acquired, obtain power battery different zones temperature, driven by controller
Dynamic circuit drives electric water pump and electronic fan cool down to power battery, efficiently solve asking for control temperature of powered cell
Topic, solves that water-cooling heat radiating system structure is more complex and water cooling system heat dissipation is uneven, and radiating efficiency is low, and work can
By the disadvantage of property difference.
Still further, the controller uses the singlechip control chip U1 and SWD of model STM32F103RCT6
Download interface J2, the 1st pin of the chip U1 the 19th draw with power circuit, one end of inductance L1, the chip U1 respectively
The 13rd pin connection of foot, the 32nd pin, the 48th pin, the 64th pin and the chip U1, the 64th of the chip U1 is drawn
Foot is also connect with the other end of inductance L1, ground capacity C1 and ground capacity C2 respectively, the 14th pin of the chip U1,
15 pins, the 8th pin, the 9th pin, the 10th pin and the 11st pin are connect with the temperature sensing circuit respectively, the core
The 42nd pin of piece U1 is connect with the 4th pin of the SWD download interface J2, the 43rd pin and the SWD of the chip U1
The 6th pin of download interface J2 connects, and the 46th pin of the chip U1 is connect with the 3rd pin of the SWD download interface J2,
The 49th pin of the chip U1 is connect with the 5th pin of the SWD download interface J2, and the 1st of the SWD download interface J2 is drawn
Foot and the 2nd pin are separately connected power supply, and the 7th pin of the SWD download interface J2 is grounded respectively with the 8th pin, the chip
The 3rd pin of U1 is connect with one end of crystal oscillator X1 and ground capacity C4 respectively, the 4th pin difference of the chip U1
Connect with the other end of crystal oscillator X1 and ground capacity C5, the 18th pin of the chip U1 respectively with the chip U1
The 31st pin, the 47th pin, the 63rd pin and the chip U1 the connection of the 12nd pin, and be grounded, the chip U1's
28th pin is connect with ground resistance R3, the 61st pin, the 62nd pin, the 29th pin and the 33rd pin point of the chip U1
It is not connect with motor-drive circuit, the 5th pin of chip U1 one end with one end of resistance R2, crystal oscillator X2 respectively
And ground capacity C6 connection, the 6th pin of the chip U1 respectively with the other end of resistance R2, crystal oscillator X2 it is another
End and ground capacity C7 connection, the 60th pin of the chip U1 are the control pin of downloading selection interface J1, the downloading
The 1st pin of selection interface J1 is connect with ground resistance R4, the 2nd pin and the power circuit of the downloading selection interface J1
Connection, the 7th pin of the chip U1 are connect with one end of one end of resistance R1, one end of switch S1 and capacitor C3 respectively,
The other end of resistance R1 is connect with the power circuit, the other end of capacitor C3 and opens the other end connect and ground for sending S1.
The beneficial effect of above-mentioned further scheme is: select STMicw Electronics STM32F103RCT6 as main control chip,
This chip has the characteristics that very high performance, real-time function, Digital Signal Processing, low-power consumption, low pressure, and adopts in circuit design
With the minimum system of chip, the minimum peripheral circuit that can guarantee chip operation has been used, has guaranteed circuit reliability of operation, also protects
Program download interface has been stayed, has carried out software upgrading convenient for the later period.
Still further, the power circuit includes voltage regulator chip U2, the power supply indicator of model AMS1117-3.3
Circuit and electric source filter circuit, wherein the 1st pin of the chip U2 respectively with one end of capacitor C7, capacitor C8 one end,
One end of capacitor C9 and one end connection of capacitor C10, and be grounded, the 2nd pin of the chip U2 is another with capacitor C8 respectively
One end, the other end of capacitor C10, power indicator circuit, electric source filter circuit, the other end of resistance R1, downloading selection interface
The 2nd pin of J1, the 1st pin of the chip U1 and temperature sensing circuit connection, the 3rd pin point of the chip U2
It is not connect with the other end of the other end of capacitor C9, power supply and capacitor C7.
The beneficial effect of above-mentioned further scheme is: the utility model to 5V DC power supply carry out 3.3V voltage transformation and
Power filter processing, provides 3.3V stabilized power supply for main control chip, that is, controller of circuit, to ensure the reliable work of main control chip.
Still further, the electric source filter circuit includes capacitor C11, capacitor C12, capacitor C13 and capacitor C14, electricity
The one end for holding C11 is connect with one end of one end of capacitor C12, one end of capacitor C13 and capacitor C14 respectively, and is grounded, capacitor
The other end of C11 respectively with the 2nd pin of the chip U2, the other end of capacitor C12, capacitor C13 the other end and capacitor
The other end of C14 connects.
The beneficial effect of above-mentioned further scheme is: can be effectively filtered out in the utility model by the way that electric source filter circuit is arranged
The high-frequency noise of 3.3V power supply improves the immunity to interference of circuit, ensures main control chip long-term stable operation.
Still further, the power indicator circuit includes resistance R5 and LED light emitting diode D1, the resistance R5
One end connect with the 2nd pin of the chip U2, the anode of the other end of resistance R5 and the LED light emitting diode D1 are even
It connects, the cathode ground connection of the LED light emitting diode D1.
The beneficial effect of above-mentioned further scheme is: power indicator circuit is used to indicate and detects in the utility model
Whether 3.3V power voltage supply is normal, and LED LED light lamp is bright, and 3.3V power supply is normal, and LED LED light lamp goes out, and does not have
3.3V power supply, is convenient for debugging circuit board and detection.
Still further, the temperature sensing circuit includes resistance R6, resistance R8, resistance R10, resistance R12, resistance R14
Thermo-sensitive resistor R7 all the same, thermo-sensitive resistor R9, thermo-sensitive resistor R11, thermo-sensitive resistor R13, temperature with resistance R16 and 6 structures
Quick resistance R15, thermo-sensitive resistor R17, wherein
One end of resistance R6 respectively with one end of resistance R8, one end of resistance R10, one end of resistance R12, resistance R14
2nd pin of one end, one end of resistance R16 and the chip U2 connects, the other end of resistance R6 respectively with the chip U1
The 14th pin and thermo-sensitive resistor R7 one end connection, the other end of thermo-sensitive resistor R7 respectively with one end of thermo-sensitive resistor R9,
One end of thermo-sensitive resistor R11, one end of thermo-sensitive resistor R13, one end of thermo-sensitive resistor R15 and thermo-sensitive resistor R17 one end connect
It connecing, and is grounded, the other end of thermo-sensitive resistor R9 is connect with the other end of the 15th pin of the chip U1 and resistance R8 respectively,
The other end of thermo-sensitive resistor R11 is connect with the other end of the 8th pin of the chip U1 and resistance R10 respectively, thermo-sensitive resistor
The other end of R13 is connect with the other end of the 9th pin of the chip U1 and resistance R12 respectively, and thermo-sensitive resistor R15's is another
End connect respectively with the other end of the 10th pin of the chip U1 and resistance R14, the other end of thermo-sensitive resistor R17 respectively with
The other end connection of the 11st pin and resistance R16 of the chip U1.
The beneficial effect of above-mentioned further scheme is: the utility model uses the identical NTC temperature sensor of 6 structures,
The temperature of power battery different zones can be acquired, effectively improve the precision for obtaining temperature of powered cell.
Still further, the motor-drive circuit includes the motor drive ic U3 of model LM-DJ01, the chip
The 1st pin of U3 is connect with the 61st pin of the chip U1, and the 2nd pin of the chip U3 draws with the 62nd of the chip U1
Foot connection, the 3rd pin of the chip U3 are connect with the 29th pin of the chip U1, the 4th pin of the chip U3 and institute
The 33rd pin connection of chip U1 is stated, the 5th pin of the chip U3 is grounded respectively with the 11st pin, and the 6th of the chip U3 the
Pin is connect with the electric water pump respectively with the 7th pin, the 8th pin and the 9th pin of the chip U3 respectively with the electricity
Sub- fan connection, the 10th pin of the chip U3 connect power supply, the 11st pin ground connection of the chip U3.
The beneficial effect of above-mentioned further scheme is: exporting two-way PWM, and benefit respectively by controller in the utility model
With this motor-drive circuit, realizes and control is respectively driven to water pump and fan, in the utility model outside motor-drive circuit
12V voltage is connect, the maximum current for fan and water pump full power operation can be carried.
Detailed description of the invention
Fig. 1 is the control structure schematic diagram of the utility model.
Fig. 2 is the circuit diagram of controller in the utility model.
Fig. 3 is the circuit diagram of power circuit in the utility model.
Fig. 4 is the circuit diagram of temperature sensing circuit in the utility model.
Fig. 5 is the circuit diagram of motor-drive circuit in the utility model.
Wherein, 1- controller, 2- temperature sensing circuit, 3- power circuit, 4- motor-drive circuit, 5- electric water pump, 6-
Electronic fan.
Specific embodiment
Specific embodiment of the present utility model is described below, in order to facilitate understanding by those skilled in the art
The utility model, it should be apparent that the utility model is not limited to the range of specific embodiment, to the common skill of the art
For art personnel, if various change the attached claims limit and determine the utility model spirit and scope in,
These variations are it will be apparent that all are created using the utility model of the utility model design in the column of protection.
Embodiment
The utility model provides a kind of power battery cooling system of pure electric vehicle logistic car, and electrokinetic cell system is designing
When reserved waterway pipe, power battery generates heat at work, and the utility model is utilized water-cooling principle, passes through temperature
6 NTC temperature sensors are acquired temperature of powered cell in degree detection circuit, obtain the temperature of power battery different zones
Degree drives electric water pump and electronic fan to cool down power battery, efficiently solves control by controller driving circuit
It the problem of temperature of powered cell, solves that water-cooling heat radiating system structure is more complex and water cooling system heat dissipation is uneven, dissipates
The thermal efficiency is low, the disadvantage of functional reliability difference.
As shown in Figure 1, the utility model include controller 1, the temperature sensing circuit 2 being connect respectively with the controller 1,
Power circuit 3 and motor-drive circuit 4, the motor-drive circuit 4 also connect with electric water pump 5 and electronic fan 6 respectively
It connects.
As shown in Fig. 2, singlechip control chip U1 and SWD of the controller 1 using model STM32F103RCT6
Download interface J2, the 1st pin of the chip U1 the 19th draw with power circuit 3, one end of inductance L1, the chip U1 respectively
The 13rd pin connection of foot, the 32nd pin, the 48th pin, the 64th pin and the chip U1, the 64th of the chip U1 is drawn
Foot is also connect with the other end of inductance L1, ground capacity C1 and ground capacity C2 respectively, the 14th pin of the chip U1,
15 pins, the 8th pin, the 9th pin, the 10th pin and the 11st pin are connect with the temperature sensing circuit 2 respectively, the core
The 42nd pin of piece U1 is connect with the 4th pin of the SWD download interface J2, the 43rd pin and the SWD of the chip U1
The 6th pin of download interface J2 connects, and the 46th pin of the chip U1 is connect with the 3rd pin of the SWD download interface J2,
The 49th pin of the chip U1 is connect with the 5th pin of the SWD download interface J2, and the 1st of the SWD download interface J2 is drawn
Foot and the 2nd pin are separately connected power supply, and the 7th pin of the SWD download interface J2 is grounded respectively with the 8th pin, the chip
The 3rd pin of U1 is connect with one end of crystal oscillator X1 and ground capacity C4 respectively, the 4th pin difference of the chip U1
Connect with the other end of crystal oscillator X1 and ground capacity C5, the 18th pin of the chip U1 respectively with the chip U1
The 31st pin, the 47th pin, the 63rd pin and the chip U1 the connection of the 12nd pin, and be grounded, the chip U1's
28th pin is connect with ground resistance R3, the 61st pin, the 62nd pin, the 29th pin and the 33rd pin point of the chip U1
Do not connect with motor-drive circuit 4, the 5th pin of the chip U1 respectively with one end of resistance R2, crystal oscillator X2 one
End and ground capacity C6 connection, the 6th pin of the chip U1 respectively with the other end of resistance R2, crystal oscillator X2 it is another
One end and ground capacity C7 connection, the 60th pin of the chip U1 is the control pin of downloading selection interface J1, under described
The 1st pin for carrying selection interface J1 is connect with ground resistance R4, the 2nd pin and power supply electricity of the downloading selection interface J1
Road 3 connects, and the 7th pin of the chip U1 connects with one end of one end of resistance R1, one end of switch S1 and capacitor C3 respectively
It connects, the other end of resistance R1 is connect with the power circuit 3, and the other end of capacitor C3 is sent the other end of S1 to connect and connect with opening
Ground.
As shown in figure 3, the power circuit 3 includes voltage regulator chip U2, the power supply indicator of model AMS1117-3.3
Circuit and electric source filter circuit, wherein
The 1st pin of the chip U2 respectively with one end of capacitor C7, one end of capacitor C8, one end of capacitor C9 and electricity
One end connection for holding C10, and is grounded, the 2nd pin of the chip U2 respectively with the other end of capacitor C8, capacitor C10 it is another
End, power indicator circuit, electric source filter circuit, resistance R1 the other end, downloading selection interface J1 the 2nd pin, the core
The 1st pin and the temperature sensing circuit 2 of piece U1 connects, and the 3rd pin of the chip U2 is another with capacitor C9 respectively
The other end connection at end, power supply and capacitor C7；
The power indicator circuit includes resistance R5 and LED light emitting diode D1, one end of the resistance R5 and institute
The 2nd pin connection of chip U2 is stated, the other end of resistance R5 is connect with the anode of the LED light emitting diode D1, the LED hair
The cathode of optical diode D1 is grounded；
The electric source filter circuit includes capacitor C11, capacitor C12, capacitor C13 and capacitor C14, one end of capacitor C11
It connect, and is grounded with one end of one end of capacitor C12, one end of capacitor C13 and capacitor C14 respectively, the other end of capacitor C11
Respectively with the other end of the 2nd pin of the chip U2, the other end of capacitor C12, the other end of capacitor C13 and capacitor C14
Connection.
As shown in figure 4, the temperature sensing circuit 2 includes resistance R6, resistance R8, resistance R10, resistance R12, resistance R14
Thermo-sensitive resistor R7 all the same, thermo-sensitive resistor R9, thermo-sensitive resistor R11, thermo-sensitive resistor R13, temperature with resistance R16 and 6 structures
Quick resistance R15, thermo-sensitive resistor R17, wherein
One end of resistance R6 respectively with one end of resistance R8, one end of resistance R10, one end of resistance R12, resistance R14
2nd pin of one end, one end of resistance R16 and the chip U2 connects, the other end of resistance R6 respectively with the chip U1
The 14th pin and thermo-sensitive resistor R7 one end connection, the other end of thermo-sensitive resistor R7 respectively with one end of thermo-sensitive resistor R9,
One end of thermo-sensitive resistor R11, one end of thermo-sensitive resistor R13, one end of thermo-sensitive resistor R15 and thermo-sensitive resistor R17 one end connect
It connecing, and is grounded, the other end of thermo-sensitive resistor R9 is connect with the other end of the 15th pin of the chip U1 and resistance R8 respectively,
The other end of thermo-sensitive resistor R11 is connect with the other end of the 8th pin of the chip U1 and resistance R10 respectively, thermo-sensitive resistor
The other end of R13 is connect with the other end of the 9th pin of the chip U1 and resistance R12 respectively, and thermo-sensitive resistor R15's is another
End connect respectively with the other end of the 10th pin of the chip U1 and resistance R14, the other end of thermo-sensitive resistor R17 respectively with
The other end connection of the 11st pin and resistance R16 of the chip U1.
As shown in figure 5, the motor-drive circuit 4 includes the motor drive ic U3 of model LM-DJ01, the chip
The 1st pin of U3 is connect with the 61st pin of the chip U1, and the 2nd pin of the chip U3 draws with the 62nd of the chip U1
Foot connection, the 3rd pin of the chip U3 are connect with the 29th pin of the chip U1, the 4th pin of the chip U3 and institute
The 33rd pin connection of chip U1 is stated, the 5th pin of the chip U3 is grounded respectively with the 11st pin, and the 6th of the chip U3 the
Pin is connect with the electric water pump 5 respectively with the 7th pin, the 8th pin and the 9th pin of the chip U3 respectively with the electricity
Sub- fan 6 connects, and the 10th pin of the chip U3 connects power supply, the 11st pin ground connection of the chip U3.
In a particular embodiment, the temperature for the power battery that temperature sensing circuit 2 acquires in real time is obtained by controller 1,
PWM output is controlled with this, electric water pump 5 and electronics are controlled by 1 driving motor driving circuit 4 of controller according to the temperature of acquisition
Fan 6 works, and cools down to power battery.Wherein, temperature sensing circuit 2 includes 6 NTC temperature sensors, dynamic to obtain
The temperature of power battery different zones, controller 1 control 4 gears of the electronic fan 6 in 20% to 90% duty cycle range
Speed work, the speed that controller 1 controls 4 gears of the water pump 5 in 20% to 90% duty cycle range carries out
Work, to meet different cooling burden requirements, electric water pump 5 and electronic fan 6, which are opened, depends on the detection of temperature sensing circuit 2
Temperature, electric water pump 5 can the unlatching when the temperature detected is higher than to 30 DEG C, closed when temperature is lower than 20 DEG C, be higher than 30
DEG C when, electronic fan 6 and electric water pump 5 controlled using 20% duty ratio PWM work, when being higher than 35 DEG C, accounted for using 40%
Sky ratio PWM controls electronic fan 6 and electric water pump 5 works, and when being higher than 40 DEG C, controls electron wind using 60% duty ratio PWM
Fan 6 and electric water pump 5 work, and are higher than 45 DEG C or more, control electronic fan 6 and 5 work of electric water pump using 90% duty ratio PWM
Make, by temperature value control between 20 DEG C~30 DEG C.In the present embodiment, power circuit 3 is controller 1 and temperature detection electricity
Road 2 provides burning voltage.
Claims (7)
1. a kind of power battery cooling system of pure electric vehicle logistic car, which is characterized in that including controller (1), respectively with it is described
Temperature sensing circuit (2), power circuit (3) and the motor-drive circuit (4) of controller (1) connection, the motor driven electricity
Road (4) is also connect with electric water pump (5) and electronic fan (6) respectively.
2. the power battery cooling system of pure electric vehicle logistic car according to claim 1, which is characterized in that the controller
(1) using the singlechip control chip U1 and SWD download interface J2 of model STM32F103RCT6, the 1st of the chip U1 the
Pin respectively with power circuit (3), one end of inductance L1, the 19th pin of the chip U1, the 32nd pin, the 48th pin,
The connection of the 13rd pin of 64 pins and the chip U1, the 64th pin of the chip U1 are also another with inductance L1 respectively
End, ground capacity C1 and ground capacity C2 connection, the 14th pin of the chip U1, the 15th pin, the 8th pin, the 9th are drawn
Foot, the 10th pin and the 11st pin are connect with the temperature sensing circuit (2) respectively, the 42nd pin of the chip U1 and institute
State the 4th pin connection of SWD download interface J2, the 6th pin of the 43rd pin of the chip U1 and the SWD download interface J2
Connection, the 46th pin of the chip U1 are connect with the 3rd pin of the SWD download interface J2, and the 49th of the chip U1 is drawn
Foot is connect with the 5th pin of the SWD download interface J2, and the 1st pin of the SWD download interface J2 connects respectively with the 2nd pin
Connect power supply, the 7th pin of the SWD download interface J2 is grounded respectively with the 8th pin, the 3rd pin of the chip U1 respectively with
One end of crystal oscillator X1 and ground capacity C4 connection, the 4th pin of the chip U1 is respectively with crystal oscillator X1's
The other end and ground capacity C5 connection, the 18th pin of the chip U1 respectively with the 31st pin of the chip U1, the 47th
12nd pin of pin, the 63rd pin and the chip U1 connects, and is grounded, the 28th pin and ground connection electricity of the chip U1
Hinder R3 connection, the 61st pin, the 62nd pin, the 29th pin and the 33rd pin of the chip U1 respectively with motor-drive circuit
(4) connect, the 5th pin of the chip U1 respectively with one end of resistance R2, one end of crystal oscillator X2 and ground capacity
C6 connection, the 6th pin of the chip U1 are electric with the other end of resistance R2, the other end of crystal oscillator X2 and ground connection respectively
Hold C7 connection, the 60th pin of the chip U1 is the control pin of downloading selection interface J1, the downloading selection interface J1's
1st pin is connect with ground resistance R4, and the 2nd pin of the downloading selection interface J1 is connect with the power circuit (3), described
The 7th pin of chip U1 is connect with one end of one end of resistance R1, one end of switch S1 and capacitor C3 respectively, and resistance R1's is another
One end is connect with the power circuit (3), the other end of capacitor C3 and the other end connect and ground of switch S1.
3. the power battery cooling system of pure electric vehicle logistic car according to claim 2, which is characterized in that the power supply electricity
Road (3) includes voltage regulator chip U2, power indicator circuit and the electric source filter circuit of model AMS1117-3.3, wherein
The 1st pin of the chip U2 respectively with one end of capacitor C7, one end of capacitor C8, one end of capacitor C9 and capacitor C10
One end connection, and is grounded, the 2nd pin of the chip U2 respectively with the other end of capacitor C8, the other end of capacitor C10, power supply
Indicator light circuit, electric source filter circuit, the other end of resistance R1, downloading selection the 2nd pin of interface J1, the chip U1 the
1 pin and the temperature sensing circuit (2) connection, the 3rd pin of the chip U2 respectively with the other end of capacitor C9, power supply
And the other end connection of capacitor C7.
4. the power battery cooling system of pure electric vehicle logistic car according to claim 3, which is characterized in that the power supply filter
Wave circuit includes capacitor C11, capacitor C12, capacitor C13 and capacitor C14, one end of capacitor C11 respectively with capacitor C12 one
One end connection at end, one end of capacitor C13 and capacitor C14, and being grounded, the other end of capacitor C11 respectively with the chip U2
The 2nd pin, the other end of capacitor C12, the other end of capacitor C13 and capacitor C14 other end connection.
5. the power battery cooling system of pure electric vehicle logistic car according to claim 3, which is characterized in that the power supply refers to
Indication lamp circuit includes resistance R5 and LED light emitting diode D1, the 2nd pin company of one end of the resistance R5 and the chip U2
It connects, the other end of resistance R5 is connect with the anode of the LED light emitting diode D1, and the cathode of the LED light emitting diode D1 connects
Ground.
6. the power battery cooling system of pure electric vehicle logistic car according to claim 2, which is characterized in that the temperature inspection
Slowdown monitoring circuit (2) includes that resistance R6, resistance R8, resistance R10, resistance R12, resistance R14 and resistance R16 and 6 structures are all the same
Thermo-sensitive resistor R7, thermo-sensitive resistor R9, thermo-sensitive resistor R11, thermo-sensitive resistor R13, thermo-sensitive resistor R15, thermo-sensitive resistor R17, wherein
One end of resistance R6 respectively with one end of resistance R8, one end of resistance R10, one end of resistance R12, resistance R14 one end,
The 2nd pin of one end of resistance R16 and the chip U2 connection, the other end of resistance R6 respectively with the chip U1 the 14th
One end of pin and thermo-sensitive resistor R7 connection, the other end of thermo-sensitive resistor R7 respectively with one end of thermo-sensitive resistor R9, temperature sensitive electricity
One end connection of one end of R11, one end of thermo-sensitive resistor R13, one end of thermo-sensitive resistor R15 and thermo-sensitive resistor R17 are hindered, and is connect
Ground, the other end of thermo-sensitive resistor R9 are connect with the other end of the 15th pin of the chip U1 and resistance R8 respectively, temperature sensitive electricity
The other end of resistance R11 is connect with the other end of the 8th pin of the chip U1 and resistance R10 respectively, and thermo-sensitive resistor R13's is another
One end is connect with the other end of the 9th pin of the chip U1 and resistance R12 respectively, the other end difference of thermo-sensitive resistor R15
Connect with the other end of the 10th pin of the chip U1 and resistance R14, the other end of thermo-sensitive resistor R17 respectively with the core
The other end connection of the 11st pin and resistance R16 of piece U1.
7. the power battery cooling system of pure electric vehicle logistic car according to claim 2, which is characterized in that the motor drives
Dynamic circuit (4) include the 1st pin and the chip U1 of the motor drive ic U3, the chip U3 of model LM-DJ01
The connection of 61st pin, the 2nd pin of the chip U3 are connect with the 62nd pin of the chip U1, and the 3rd of the chip U3 is drawn
Foot is connect with the 29th pin of the chip U1, and the 4th pin of the chip U3 is connect with the 33rd pin of the chip U1, institute
The 5th pin for stating chip U3 is grounded respectively with the 11st pin, the 6th pin and the 7th pin of the chip U3 respectively with the electricity
Dynamic water pump (5) connection, the 8th pin of the chip U3 are connect with the electronic fan (6) respectively with the 9th pin, the chip
The 10th pin of U3 connects power supply, the 11st pin ground connection of the chip U3.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564656.4U CN209592264U (en) | 2019-04-24 | 2019-04-24 | A kind of power battery cooling system of pure electric vehicle logistic car |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920564656.4U CN209592264U (en) | 2019-04-24 | 2019-04-24 | A kind of power battery cooling system of pure electric vehicle logistic car |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209592264U true CN209592264U (en) | 2019-11-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920564656.4U Expired - Fee Related CN209592264U (en) | 2019-04-24 | 2019-04-24 | A kind of power battery cooling system of pure electric vehicle logistic car |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209592264U (en) |
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2019
- 2019-04-24 CN CN201920564656.4U patent/CN209592264U/en not_active Expired - Fee Related
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| GR01 | Patent grant | ||
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| CF01 | Termination of patent right due to non-payment of annual fee |
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| CF01 | Termination of patent right due to non-payment of annual fee |