CN209217774U - A kind of electric bicycle intelligent charge real-time detection circuit - Google Patents
A kind of electric bicycle intelligent charge real-time detection circuit Download PDFInfo
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- CN209217774U CN209217774U CN201920170016.5U CN201920170016U CN209217774U CN 209217774 U CN209217774 U CN 209217774U CN 201920170016 U CN201920170016 U CN 201920170016U CN 209217774 U CN209217774 U CN 209217774U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/70—Energy storage systems for electromobility, e.g. batteries
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T10/00—Road transport of goods or passengers
- Y02T10/60—Other road transportation technologies with climate change mitigation effect
- Y02T10/7072—Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/12—Electric charging stations
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/14—Plug-in electric vehicles
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Abstract
The utility model discloses a kind of electric bicycle intelligent charge real-time detection circuits, including electric current copper-manganese sample circuit, voltage jump sample circuit, charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit and power circuit, electric current copper-manganese sample circuit and voltage jump sample circuit are connect with power detection circuit, power detection circuit, charging control circuit, wireless transmission circuit and voice warning circuit are connect with controller, charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit is connect with power circuit；The utility model flows through the electric current and voltage of charging socket when can charge with real-time detection; judge whether charge power is excessively high; the on-off of charging socket alternating current can be controlled in time by charging control circuit; protective effect is played to charging socket; it powers more safe and reliable, and user or property can also remotely understand charging socket state by wireless transmission circuit.
Description
Technical field
The utility model belongs to quantum cryptography communication technical field, in particular to a kind of electric bicycle intelligent charge is real-time
Detection circuit.
Background technique
Chinese electric bicycle ownership surpasses 200,000,000, but the electric vehicle charging requirement not standardized.Electric bicycle charging
The accident of initiation emerges one after another, and maintenance management problem is also commonplace.The important traffic work that electric bicycle is gone on a journey as people
One of tool, it is difficult to be substituted, it is extremely urgent to research and develop safe and efficient electric bicycle charging system.The rise of technology of Internet of things is given
People's lives bring convenience, and the combination of charging system and Internet of Things is bound to so that electric bicycle charging is more convenient more to pacify
Entirely, more effective convenient and fast approach also equally is provided for management service.
Existing charging pile is generally residential property and provides the charging socket freely to charge for owner, and this charging socket does not have
There is any safety guard, sometimes connect socket that user carries in the presence of private to there are the one-to-multiple phenomenon of charging socket,
Cause charge power excessively high, security risk is it is clear that very unreliable, and property also can not remotely understand charging socket shape
State.Therefore it is badly in need of a kind of charging real-time detection circuit at present to solve above-mentioned technical problem.
Summary of the invention
Technical problem to be solved in the utility model is to provide a kind of electrical salf-walking in view of the above shortcomings of the prior art
Vehicle intelligent charge real-time detection circuit, this intelligent charge real-time detection circuit can detecte the electric current that charging socket is flowed through when charging
And voltage, whether excessively high judge charge power, to judge whether there is security risk, charging control circuit and time control can be passed through
The on-off of charging socket alternating current processed plays protective effect to charging socket, powers more safe and reliable, and user or property
Charging socket state can also be remotely understood by wireless transmission circuit.
To realize the above-mentioned technical purpose, the technical solution that the utility model is taken are as follows:
A kind of electric bicycle intelligent charge real-time detection circuit, including the sampling of electric current copper-manganese sample circuit, voltage jump
Circuit, charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit and power circuit, institute
Firewire connection of the electric current copper-manganese sample circuit for connecting with charging socket is stated, the voltage jump sample circuit is used for and charging
The firewire of socket connection is connected with zero curve, and the electric current copper-manganese sample circuit and voltage jump sample circuit are electric with electric energy detection
Road connection, the power detection circuit, charging control circuit, wireless transmission circuit and voice warning circuit connect with controller
It connects, the charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit are and power circuit
Connection；
The power detection circuit uses RN8209 electric energy computation chip, the electric current copper-manganese sample circuit and RN8209 electricity
The pin 4 and pin 5 of energy metering chip connect, the pin 8 of the voltage jump sample circuit and RN8209 electric energy computation chip
It is connected with pin 9, pin 13, pin 14, pin 15 and the pin 16 of the RN8209 electric energy computation chip connect with controller
It connects；
The charging control circuit includes resistance R13, optocoupler U5, diode D1 and relay K1, the optocoupler U5 and control
Device processed connection, the optocoupler U5 are connect with the anode and relay K1 of diode D1 respectively, the cathode of the diode D1 and after
Electric appliance K1 is connect with power circuit, the relay K1 connect into charging socket connect zero curve or firewire in for control
The energization and power-off of charging socket processed.
As the further improved technical solution of the utility model, the electric current copper-manganese sample circuit includes sampling resistor
R1, resistance R2, resistance R3, capacitor C1 and capacitor C2, the sampling resistor R1 use copper-manganese resistance, and the one of the sampling resistor R1
End and one end of resistance R3 are connect with the firewire, and the firewire is connect with ground wire AC_GND, and the sampling resistor R1's is another
One end is connect with one end of resistance R2, the other end of the resistance R2 respectively with one end of capacitor C1 and RN8209 electrical energy measurement core
The pin 4 of piece connects, and the other end of the capacitor C1 is connect with one end of the ground wire AC_GND and capacitor C2 respectively, the electricity
The other end of the other end and resistance R3 that hold C2 is connect with RN8209 electric energy computation chip pin 5.
As the further improved technical solution of the utility model, the voltage jump sample circuit include resistance R4,
Resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, capacitor C3 and capacitor C4, the resistance R4, resistance R5, resistance R6 and
Resistance R7 is sequentially connected in series, and one end of the resistance R4 is connect with the zero curve, and one end of the resistance R7 is electric with RN8209 respectively
The pin 8 of energy metering chip, one end of capacitor C3 are connected with one end of resistance R8, and the other end of the capacitor C3 and resistance R8 are equal
It is connect with the ground wire AC_GND, one end of one end of the resistance R9 and capacitor C4 is drawn with RN8209 electric energy computation chip
Foot 9 connects, the other end of the other end of the resistance R9 and capacitor C4 with the ground wire AC_GND and RN8209 electrical energy measurement
The pin 10 of chip connects.
As the further improved technical solution of the utility model, the pin 12 of the RN8209 electric energy computation chip passes through
Resistance R10 is connect with power circuit, the pin 19 of the RN8209 electric energy computation chip respectively with one end of crystal oscillator X1 and capacitor
One end of C6 connects, the pin 20 of RN8209 electric energy computation chip one end with the other end of crystal oscillator X1 and capacitor C5 respectively
Connection, the other end of the capacitor C5 and the other end of capacitor C6 are connect with ground wire AC_GND.
As the further improved technical solution of the utility model, the optocoupler U5 in the charging control circuit is used
The pin 2 of PS2051-1 optocoupler, the PS2051-1 optocoupler passes through resistance R13 connection ground wire DC_GND, the PS2051-1 light
The pin 1 of coupling connects controller, and the pin 3 of the PS2051-1 optocoupler connects ground wire DC_GND, the PS2051-1 optocoupler
Pin 4 is connect with the anode and relay K1 of diode D1 respectively.
As the further improved technical solution of the utility model, the controller uses chip STM32F103.
As the further improved technical solution of the utility model, the wireless transmission circuit uses LORA module U2, institute
LORA module U2 is stated using model AS32-TTL-1W, pin 1 to the pin 4 of the LORA module U2 is connect with controller, institute
The pin 6 for stating LORA module U2 is connect with one end of power circuit and capacitor C7 respectively, the other end and LORA of the capacitor C7
The pin 7 of module U2 is connect with ground wire DC_GND.
As the further improved technical solution of the utility model, the voice warning circuit includes power amplifier chip U3
Power amplifier chips 8002B, the speech chip U4 is used to use speech chip with speech chip U4, the power amplifier chip U3
The pin 1 of NV080C, the speech chip U4 are connected with the cathode of Light-emitting diode LED 1, and the Light-emitting diode LED 1 is just
Pole is connect with power circuit, and the pin 2 and pin 3 of the speech chip U4 is connect with controller, the speech chip U4's
Pin 4 is connected with one end of capacitor C8, and the other end of the capacitor C8 is connected with one end of resistance R11, and the resistance R11's is another
One end is connect with one end of the pin 4 of power amplifier chip U3 and resistance R12 respectively, the pin 5 of the speech chip U4 and is drawn
Foot 7 is all connected with ground wire DC_GND, and the pin 6 of the speech chip U4 connects power circuit, one end of capacitor C10 and capacitor C11
One end, the other end of capacitor C10 and the other end of capacitor C11 be all connected with ground wire DC_GND, the power amplifier chip U3's
Pin 1 and pin 7 are all connected with ground wire DC_GND, and the pin 2 of the power amplifier chip U3 is connected by capacitor C9 with pin 3
The pin 6 of ground wire DC_GND, the power amplifier chip U3 connect power circuit, pin 5, the electricity of the power amplifier chip U3
The pin 8 of the other end and power amplifier chip U3 that hinder R12 is respectively connected with loudspeaker LS1.
As the further improved technical solution of the utility model, the power circuit is for distinguishing 220V AC voltage
It is converted to exchange+5V, direct current+12V, direct current+5V and direct current+3.3V and is powered, in the power detection circuit
The pin 12 of RN8209 electric energy computation chip exchanges+5V connection, the charging control circuit by resistance R10 and power circuit
The cathode and relay K1 of interior diode D1 is connect with the direct current+12V of power circuit, the LORA of the wireless transmission circuit
The pin 6 of module U2 is connect with the direct current+3.3V of power circuit, and the speech chip NV080C's in the voice warning circuit draws
Foot 1 is connect by Light-emitting diode LED 1 with the direct current+3.3V of power circuit, pin 6 and the power supply electricity of speech chip NV080C
Direct current+3.3V the connection on road, the pin 6 of the power amplifier 8002B in the voice warning circuit and the direct current+5V of power circuit connect
It connects.
The utility model has the following beneficial effects: the utility model can be sampled by voltage jump sample circuit and electric current copper-manganese
Circuit acquires the electric current and voltage when charging socket charging, and is detected by power detection circuit to acquisition electric current and voltage
To obtain power virtual value, controller chip STM32F103 analyzes and determines power virtual value, to judge the function that charges
Whether rate is excessively high, judges whether there is security risk, and if it exists, controller can be controlled in time charging by charging control circuit and be inserted
The disconnection of seat alternating current, protects charging socket, avoids that security risk occurs, powers more safe and reliable；Another controller can also incite somebody to action
The working condition of charging socket charges normal the excessively high information of information or charge power, long-range by wireless transmission circuit
It sends, makes user or property that can also remotely understand charging socket state.The utility model can also pass through voice prompting
Circuit carries out voice reminder or alarm to user.The circuit of the utility model is simple and reliable, at low cost, can be widely applied.
Detailed description of the invention
Fig. 1 is the structural schematic diagram of the utility model.
Fig. 2 is the electric current copper-manganese sample circuit, voltage jump sample circuit and power detection circuit principle of the utility model
Figure.
Fig. 3 is the charging control circuit schematic diagram of the utility model.
Fig. 4 is the wireless transmission circuit schematic diagram of the utility model.
Fig. 5 is the voice warning circuit schematic diagram of the utility model.
Fig. 6 is the power circuit principle figure of the utility model.
Specific embodiment
Specific embodiment of the present utility model is further illustrated below according to Fig. 1 to Fig. 6:
Referring to Fig. 1, a kind of electric bicycle intelligent charge real-time detection circuit, including electric current copper-manganese sample circuit, voltage
Bridge sample circuit, charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit and power supply
Circuit, the firewire connection that the electric current copper-manganese sample circuit is used to connect with charging socket, the voltage jump sample circuit are used
In firewire and the zero curve connection being connect with charging socket, the electric current copper-manganese sample circuit and voltage jump sample circuit with electricity
Can detection circuit connection, the power detection circuit, charging control circuit, wireless transmission circuit and voice warning circuit with control
Device processed connection, the charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit with electricity
Source circuit connection.This implementation charging socket is that the charging socket of charging is provided for user, is also possible in background technique
The residential property of record provides the charging socket freely to charge for owner.
In the present embodiment, controller uses chip STM32F103.
In the present embodiment, after the power circuit is to the power supply of other circuits, power detection circuit is adopted by electric current copper-manganese
Sample circuit and voltage jump sample circuit acquire electric current respectively, voltage is supplied to chip STM32F103 and calculates, later chip
STM32F103 can be judged accordingly, and then control charging control circuit and voice warning circuit work, finally by
Wireless transmission circuit sends information to gateway, and gateway information summarizes to be interacted with Cloud Server.It is noted that charge control
Circuit only opens the relay in it when charging and opening, and transmits electricity to jack interface, therefore does not have to while acquiring firewire and zero
Line current prevents stealing.
Referring to fig. 2, the power detection circuit use RN8209 electric energy computation chip, the electric current copper-manganese sample circuit with
The pin 4 and pin 5 of RN8209 electric energy computation chip connect, the voltage jump sample circuit and RN8209 electric energy computation chip
Pin 8 and pin 9 connect, pin 13, pin 14, pin 15 and the pin 16 of the RN8209 electric energy computation chip with control
Device connection processed, the pin 12 of the RN8209 electric energy computation chip are connect by resistance R10 with power circuit, the RN8209 electricity
The pin 19 of energy metering chip is connect with one end of one end of crystal oscillator X1 and capacitor C6 respectively, the RN8209 electric energy computation chip
Pin 20 connect respectively with one end of the other end of crystal oscillator X1 and capacitor C5, the other end of the capacitor C5 and capacitor C6's is another
One end is connect with ground wire AC_GND.
Referring to fig. 2, the electric current copper-manganese sample circuit includes sampling resistor R1, resistance R2, resistance R3, capacitor C1 and electricity
Hold C2, the sampling resistor R1 uses copper-manganese resistance, one end of one end of the sampling resistor R1 and resistance R3 with the fire
Line connection, the firewire are connect with ground wire AC_GND, and the other end of the sampling resistor R1 is connect with one end of resistance R2, described
The other end of resistance R2 is connect with the pin 4 of one end of capacitor C1 and RN8209 electric energy computation chip respectively, the capacitor C1's
The other end is connect with one end of the ground wire AC_GND and capacitor C2 respectively, and the other end of the capacitor C2 and resistance R3's is another
End is connect with RN8209 electric energy computation chip pin 5.
Referring to fig. 2, the voltage jump sample circuit include resistance R4, resistance R5, resistance R6, resistance R7, resistance R8,
Resistance R9, capacitor C3 and capacitor C4, the resistance R4, resistance R5, resistance R6 and resistance R7 are sequentially connected in series, and the one of the resistance R4
End is connect with the zero curve, one end of resistance R7 one end with the pin 8 of RN8209 electric energy computation chip, capacitor C3 respectively
It is connected with one end of resistance R8, the other end of the capacitor C3 and resistance R8 are connect with the ground wire AC_GND, the resistance
One end of R9 and one end of capacitor C4 are connect with the pin 9 of RN8209 electric energy computation chip, the other end of the resistance R9 and
The other end of capacitor C4 is connect with the pin 10 of the ground wire AC_GND and RN8209 electric energy computation chip.
Power detection circuit in Fig. 2 uses RN8209 electric energy computation chip, measures electricity using fully differential input mode
Stream and all the way voltage, can collect electric current, voltage, power, virtual value error is small, meets the monitoring need of charge node simultaneously
It asks.4,5 pins of RN8209 electric energy computation chip are current channel A, are connect with electric current copper-manganese sample circuit, the sampling of electric current copper-manganese
Circuit uses the copper-manganese of 5 m Ω as sampling resistor R1, and the temperature drift coefficient of copper-manganese is small, current detecting high reliablity, chooses two
Capacitor C1, C2 of resistance R2, R3 of 1K Ω and 2 33nF resists aliasing, and sampled signal is prevented to be distorted.Resistance R1 and charging are inserted
The firewire connection that seat is connected, acquires the current signal in firewire, and pass through resistance R2, R3 input signal to RN8209 electric energy meter
Measure 4,5 pins of chip.8,9 pins of RN8209 electric energy computation chip are voltage channel, are connected across between zero curve and firewire.L_
IN is firewire, and N_IN is zero curve, and using firewire as with reference to ground, i.e., firewire L_IN is connect with ground wire AC_GND, the sampling for line of starting to exchange fire
Current-limiting resistance can be reduced, circuit is simplified.Voltage jump sample circuit acquisition connect zero curve one end need to connect 1 ~ 2 M Ω limit
Leakage resistance (is selected as 4 300 K Ω resistance R4 to R7 as current-limiting resistance), and resistance R4 some resistive short into R7 only can
It causes electric energy chip metering inaccurate, equipment can't be damaged.Voltage jump sample circuit acquisition zero curve and firewire signal are simultaneously sent
Signal to RN8209 electric energy computation chip 8,9 pins.12 pin IS of RN8209 electric energy computation chip connect drawing, and selection uses
SPI interface (13 ~ 16 pin) and chip STM32F103 are communicated, and are not that signal wire is direct-connected, and uses isolator on pcb board
Collection terminal is that the electric energy chip RN8209 of alternating current and the chip STM32F103 of direct current supply are isolated by part 6N137, is accomplished really
Alternating current-direct current isolation, prevent DC terminal ground wire electrification.19,20 pins of RN8209 electric energy computation chip connect outside
3.579545MHz crystal oscillator X1 and two 22pF capacitors C5, C6.RN8209 electric energy computation chip is used for through electric current copper-manganese sampling electricity
Voltage between road and the electric current and firewire and zero curve of the zero curve in voltage jump sample circuit acquisition jack interface, obtains electricity
Stream, voltage, power virtual value, the chip STM32F103 of controller can directly from RN8209 register read power virtual value,
The electric energy of socket consumption can be so calculated, chip STM32F103 makes corresponding judgement, and then controls charging control circuit
With the work of voice warning circuit.
Referring to Fig. 3, the charging control circuit includes resistance R13, optocoupler U5, diode D1 and relay K1, described to fill
Optocoupler U5 in electric control circuit uses PS2051-1 optocoupler, and the pin 1 of the PS2051-1 optocoupler connects the chip of controller
STM32F103, the pin 4 of the PS2051-1 optocoupler respectively with diode D1 anode and relay K1 coil one end pin
5 connections, the cathode of the diode D1 and the coil other end pin 4 of relay K1 are connect with power circuit, the relay
The pin 1 of device K1 is connected with pin 2 in the zero curve or firewire connected into charging socket, for controlling the energization of charging socket and breaking
Electricity.The pin 2 of the PS2051-1 optocoupler is connected by resistance R13 connection ground wire DC_GND, the pin 3 of the PS2051-1 optocoupler
It is grounded DC_GND.
Specifically, relay K1 is 12V relay.The common IO of chip STM32F103 of the 1 foot connection controller of optocoupler U5
Mouthful, when STM32F103 exports high level, optocoupler U5 input terminal conducting, low level is not turned on, and 2,3 feet of optocoupler U5 connect ground wire
DC_GND, 4 feet connect 5 feet of relay K1.1,2 feet of relay K1 are connected into the AC neutral line or fire of charging socket connection
In line, the on-off of alternating current in charging socket is controlled.When chip STM32F103 exports high level to 1 foot of optocoupler U5, light
Coupling U5 work, relay K1 are attracted；When exporting low level, optocoupler U5 does not work, and relay K1 is not attracted, and then controls charging and insert
The conducting and disconnection of alternating current in seat.
Referring to fig. 4, the wireless transmission circuit uses LORA module U2, and the LORA module U2 is using selection SX1276 warp
Module model AS32-TTL-1W after encapsulation, transmission power are up to 1W, and effective communication distance is farthest up to 8 kilometers.The LORA
The pin 1 of module U2 is connect to pin 4(LORa_M0, LORa_MI, LORa_RXD, LORa_TXD) with controller, LORA mould
The pin 1 of block U2, the control pin that pin 2 is module, are connected, when LORA mould with the common IO of chip STM32F103 of controller
The pin 1 of block U2, pin 2 all high level when, module is in setting state, all for low level when module be in and work normally mould
Formula.Pin 3, the pin 4 of LORA module U2 is connected with the serial ports of chip STM32F103.The pin 6 of the LORA module U2 is distinguished
Connect with one end of power circuit and capacitor C7, the pin 7 of the other end of the capacitor C7 and LORA module U2 with ground wire DC_
GND connection.5 feet of LORA module U2 are hanging.
Referring to Fig. 5, the voice warning circuit includes power amplifier chip U3 and speech chip U4, the power amplification core
Piece U3 uses power amplifier chip 8002B, the speech chip U4 to use speech chip NV080C, and the speech chip U4's draws
Foot 1 is connected with the cathode of Light-emitting diode LED 1, and the anode of the Light-emitting diode LED 1 is connect with power circuit, the voice
The pin 2 and pin 3 of chip U4 is connect with the chip STM32F103 of controller, and the pin 4 of the speech chip U4 is connected with
One end of capacitor C8, the other end of the capacitor C8 are connected with one end of resistance R11, the other end of the resistance R11 respectively with
The pin 4 of power amplifier chip U3 is connected with one end of resistance R12, and the pin 5 and pin 7 of the speech chip U4 is all connected with ground
The pin 6 of line DC_GND, the speech chip U4 connect earthed circuit, and the pin 1 and pin 7 of the power amplifier chip U3 is equal
Ground wire DC_GND is connected, the pin 2 of the power amplifier chip U3 connects ground wire DC_GND, institute by capacitor C9 with pin 3
The pin 6 for stating power amplifier chip U3 connects power circuit, the other end of the pin 5 of the power amplifier chip U3, resistance R12
Loudspeaker LS1 is respectively connected with the pin 8 of power amplifier chip U3.
It is power amplifier chip 80002B referring to Fig. 5, power amplifier chip U3.U4 is speech chip, the built-in language of 80s
Sound is divided into 10 sections, can be chosen at random according to the control of chip STM32F103.The pin 1 of speech chip U4 connects LED light and (shines
Diode (LED) 1), it is used to refer to working condition, pin 2, the pin 3 of speech chip U4 connect the common IO of chip STM32F103
Mouthful, for controlling the work of speech chip U4 and the selection of voice paragraph, the pin 4 of speech chip U4 connects power amplifier chip
The pin 4 of U3, between connect an a 390nF capacitor C8 and 10K resistance R11, voice signal is amplified, speech chip U4's
Pin 5, pin 7 connect ground wire DC_GND, and 6 foot of pin connects the DC_+3.3V in power circuit.Power amplifier chip U3's draws
Foot 1, pin 2, pin 3, pin 7 connect ground wire DC_GND, and pin 5, pin 8 connect loudspeaker LS1, and loudspeaker LS1 is used for language
Sound output.
Referring to Fig. 6, the power circuit is used to 220V AC voltage being respectively converted into exchange+5V, direct current+12V, direct current
+ 5V and direct current+3.3V is simultaneously powered, and the pin 12 of the RN8209 electric energy computation chip in the power detection circuit passes through electricity
Resistance R10 and power circuit exchange+5V connection, the LORA wireless communication module of the wireless transmission circuit and power circuit it is straight
The pin 1 of stream+3.3V connection, the speech chip NV080C in the voice warning circuit passes through Light-emitting diode LED 1 and power supply
Direct current+3.3V the connection of circuit, the pin 6 of speech chip NV080C are connect with the direct current+3.3V of power circuit, and the voice mentions
The pin 6 for showing the power amplifier 8002B in circuit is connect with the direct current+5V of power circuit, the diode in the charging control circuit
The cathode of D1 and the coil other end pin of relay K1 are connect with the direct current+12V of power circuit.
The power circuit of the present embodiment is divided into 4 parts, wherein have exchange end 5V, i.e. AC_+5V, DC terminal 12V, 5V,
3.3V, i.e. DC_+12V, DC_+5V, DC_+3.3V.AC and DC is completely separable, and ground wire is respectively AC_GND and DC_GND,
Wherein ground wire AC_GND is attached directly to firewire.RV1 is varistor, prevents spread of voltage, causes to hurt to other electric elements
Evil, transformer T1 are that 220V turns 15V transformer, 5, the 6 feet output exchange 15V of transformer T1, through diode D2, D3, D4, D5 group
At rectifier bridge switch to direct current 15V(DC_+15V).Direct current 15V switchs to direct current 12V(DC_ through chip U8 (chip LM2596_12V)
+ 12V), then switch to direct current 5V(DC_+5V through chip U9 (chip LM2596_5V)), direct current 5V is most afterwards through U7 (LM117-3.3) core
Piece switchs to direct current 3.3V(DC_+3.3V).3 feet of transformer T1 and the direct-connected RT1 that connects of ground wire AC_GND be (model NTC5D_7's
Thermistor), 2,4 feet of transformer T1 connect chip U6(chip 75M08), obtain 5V, i.e. AC_+ that exchange end-apparatus part uses
5V.Remaining capacitor is filter action.
The present embodiment power detection circuit before using charging socket needs to work as relay using Resistance Measurement Method power
K1 contact closure, the charging plug of external electric bicycle is connected to when being charged on charging socket, power detection circuit
Pass through the voltage and current of voltage jump sample circuit and electric current copper-manganese sample circuit when the primary charging of detection in one second, control
Device chip STM32F103 can be directly from RN8209 register read power virtual value, then can calculate each second
The electric energy of charging socket consumption.For market survey, 1500W is set as electric bicycle highest charge power, works as charge power
When more than this value (possible charging system breaks down or user's private patches row while to more electric bicycle chargings),
Controller chip STM32F103 judges that power is excessively high, may be controlled to charging by the relay K1 in charging control circuit and inserts
The firewire or zero curve of seat power supply disconnect powering off charging socket.Setting 10W is the driving of electronic system full of power, detects function
It is consistently less than this value within rate 2 minutes, controller chip STM32F103 judges that battery of electric bicycle is full of, and can pass through charging
Relay K1 in control circuit may be controlled to the firewire of charging socket power supply or zero curve disconnects powering off charging socket.
When detecting that power moment falls as 2W or less (may occur that plug maliciously pulled up or other reasons), controller chip
STM32F103 judges that charging socket occurs instantaneous power transition and is downward trend, passes through the relay in charging control circuit
Device K1 can control automatically powering off for charging socket alternating current.Power continues 3 minutes lower than 2W(possibility after charging socket is opened
User's plug is improperly inserted socket or other reasons), the charging can also be judged by controller chip STM32F103
Socket is not charging, and controls automatically powering off for charging socket alternating current by charging control circuit.Above-mentioned working principle is only
It is a kind of set-up mode, how controller chip STM32F103, which specifically works, to be set according to different demands and different parameters
It sets, which is the prior art.
Above-mentioned each case and information is charged normal, controller chip STM32F103 can pass through wireless transmission electricity
Great distance journey is sent to gateway, and then gateway can be interacted with Cloud Server, and user or property can be real-time by small routine
Charging socket working condition and charge information are checked, to realize long-range understanding charging socket state.Voice in the present embodiment
Loudspeaker in cue circuit can also remind user according to setting, the position for the charging socket for reminding user to be opened
It sets, guarantees that user correctly plugs charging plug.User can also pass through setting when plugging charging plug and pulling up charging plug
Make the loudspeaker in voice warning circuit remind user by standard operation, avoids the occurrence of hidden danger.Voice warning circuit can also basis
The control instruction of controller chip STM32F103 carries out the improper use alarm or safety instruction of charging socket.Voice prompting electricity
The concrete sound prompt on road can also be configured according to different demands, be not limited to the voice prompting scheme of above-mentioned offer.
The protection scope of the utility model includes but is not limited to embodiment of above, and the protection scope of the utility model is to weigh
Subject to sharp claim, replacement, deformation, the improvement that those skilled in the art that any pair of this technology is made is readily apparent that are each fallen within
The protection scope of the utility model.
Claims (9)
1. a kind of electric bicycle intelligent charge real-time detection circuit, it is characterised in that: including electric current copper-manganese sample circuit, voltage
Bridge sample circuit, charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit and power supply
Circuit, the firewire connection that the electric current copper-manganese sample circuit is used to connect with charging socket, the voltage jump sample circuit are used
In firewire and the zero curve connection being connect with charging socket, the electric current copper-manganese sample circuit and voltage jump sample circuit with electricity
Can detection circuit connection, the power detection circuit, charging control circuit, wireless transmission circuit and voice warning circuit with control
Device processed connection, the charging control circuit, power detection circuit, controller, wireless transmission circuit, voice warning circuit with electricity
Source circuit connection；
The power detection circuit uses RN8209 electric energy computation chip, the electric current copper-manganese sample circuit and RN8209 electric energy meter
The pin 4 and pin 5 for measuring chip connect, and the pin 8 of the voltage jump sample circuit and RN8209 electric energy computation chip and draw
Foot 9 connects, and pin 13, pin 14, pin 15 and the pin 16 of the RN8209 electric energy computation chip are connect with controller；
The charging control circuit includes resistance R13, optocoupler U5, diode D1 and relay K1, the optocoupler U5 and controller
Connection, the optocoupler U5 are connect with the anode and relay K1 of diode D1 respectively, the cathode and relay of the diode D1
K1 is connect with power circuit, the relay K1 connect into charging socket connect zero curve or firewire in for control fill
The energization and power-off of electrical socket.
2. electric bicycle intelligent charge real-time detection circuit according to claim 1, it is characterised in that: the electric current
Copper-manganese sample circuit includes that sampling resistor R1, resistance R2, resistance R3, capacitor C1 and capacitor C2, the sampling resistor R1 use manganese
Copper resistance, one end of the sampling resistor R1 and one end of resistance R3 are connect with the firewire, the firewire and ground wire AC_
The other end of GND connection, the sampling resistor R1 is connect with one end of resistance R2, the other end of the resistance R2 respectively with capacitor
The pin 4 of one end of C1 and RN8209 electric energy computation chip connects, the other end of the capacitor C1 respectively with the ground wire AC_
GND is connected with one end of capacitor C2, the other end of the other end of the capacitor C2 and resistance R3 with RN8209 electrical energy measurement core
Piece pin 5 connects.
3. electric bicycle intelligent charge real-time detection circuit according to claim 2, it is characterised in that: the voltage
Bridging sample circuit includes resistance R4, resistance R5, resistance R6, resistance R7, resistance R8, resistance R9, capacitor C3 and capacitor C4, described
Resistance R4, resistance R5, resistance R6 and resistance R7 are sequentially connected in series, and one end of the resistance R4 is connect with the zero curve, the resistance
One end of R7 is connect with one end of the pin 8 of RN8209 electric energy computation chip, one end of capacitor C3 and resistance R8 respectively, the electricity
The other end for holding C3 and resistance R8 is connect with the ground wire AC_GND, one end of one end of the resistance R9 and capacitor C4 with
The pin 9 of RN8209 electric energy computation chip connects, the other end of the other end of the resistance R9 and capacitor C4 with the ground wire
The pin 10 of AC_GND and RN8209 electric energy computation chip connects.
4. electric bicycle intelligent charge real-time detection circuit according to claim 3, it is characterised in that: the RN8209
The pin 12 of electric energy computation chip is connect by resistance R10 with power circuit, the pin 19 of the RN8209 electric energy computation chip
Connect respectively with one end of one end of crystal oscillator X1 and capacitor C6, the pin 20 of the RN8209 electric energy computation chip respectively with crystal oscillator
The other end of X1 is connected with one end of capacitor C5, the other end of the other end of the capacitor C5 and capacitor C6 with ground wire AC_GND
Connection.
5. electric bicycle intelligent charge real-time detection circuit according to claim 1, it is characterised in that: the charging control
Optocoupler U5 in circuit processed uses PS2051-1 optocoupler, and the pin 2 of the PS2051-1 optocoupler passes through resistance R13 connection ground wire
DC_GND, the pin 1 of the PS2051-1 optocoupler connect controller, and the pin 3 of the PS2051-1 optocoupler connects ground wire DC_
GND, the pin 4 of the PS2051-1 optocoupler are connect with the anode and relay K1 of diode D1 respectively.
6. electric bicycle intelligent charge real-time detection circuit according to claim 1, it is characterised in that: the controller
Using chip STM32F103.
7. electric bicycle intelligent charge real-time detection circuit according to claim 1, it is characterised in that: the wireless biography
Road transmit electricity using LORA module U2, the LORA module U2 is using model AS32-TTL-1W, the pin 1 of the LORA module U2
It being connect to pin 4 with controller, the pin 6 of the LORA module U2 is connect with one end of power circuit and capacitor C7 respectively,
The other end of the capacitor C7 and the pin 7 of LORA module U2 are connect with ground wire DC_GND.
8. electric bicycle intelligent charge real-time detection circuit according to claim 1, it is characterised in that: the voice mentions
Show that circuit includes power amplifier chip U3 and speech chip U4, the power amplifier chip U3 uses power amplifier chips 8002B, described
Speech chip U4 uses speech chip NV080C, and the pin 1 of the speech chip U4 is connected with the cathode of Light-emitting diode LED 1,
The anode of the Light-emitting diode LED 1 is connect with power circuit, and the pin 2 and pin 3 of the speech chip U4 is and controller
Connection, the pin 4 of the speech chip U4 are connected with one end of capacitor C8, and the other end of the capacitor C8 is connected with resistance R11
One end, the other end of the resistance R11 is connect with one end of the pin 4 of power amplifier chip U3 and resistance R12 respectively, described
The pin 5 and pin 7 of speech chip U4 is all connected with ground wire DC_GND, and the pin 6 of the speech chip U4 connects power circuit, electricity
Holding one end of C10 and one end of capacitor C11, the other end of capacitor C10 and the other end of capacitor C11 are all connected with ground wire DC_GND,
The pin 1 and pin 7 of the power amplifier chip U3 is all connected with ground wire DC_GND, 2 He of pin of the power amplifier chip U3
For pin 3 by capacitor C9 connection ground wire DC_GND, the pin 6 of the power amplifier chip U3 connects power circuit, the function
The pin 8 of the pin 5 of rate amplification chip U3, the other end of resistance R12 and power amplifier chip U3 is respectively connected with loudspeaker LS1.
9. electric bicycle intelligent charge real-time detection circuit according to claim 1, it is characterised in that: the power supply electricity
Road is used to that 220V AC voltage to be respectively converted into exchange+5V, direct current+12V, direct current+5V and direct current+3.3V and is powered,
The pin 12 of RN8209 electric energy computation chip in the power detection circuit exchanges+5V by resistance R10 and power circuit
It connecting, the cathode and relay K1 of the diode D1 in the charging control circuit is connect with the direct current+12V of power circuit,
The pin 6 of LORA module U2 of the wireless transmission circuit is connect with the direct current+3.3V of power circuit, the voice warning circuit
The pin 1 of interior speech chip NV080C is connect by Light-emitting diode LED 1 with the direct current+3.3V of power circuit, speech chip
The pin 6 of NV080C is connect with the direct current+3.3V of power circuit, the pin 6 of the power amplifier 8002B in the voice warning circuit with
Direct current+5V the connection of power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170016.5U CN209217774U (en) | 2019-01-31 | 2019-01-31 | A kind of electric bicycle intelligent charge real-time detection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920170016.5U CN209217774U (en) | 2019-01-31 | 2019-01-31 | A kind of electric bicycle intelligent charge real-time detection circuit |
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| Publication Number | Publication Date |
|---|---|
| CN209217774U true CN209217774U (en) | 2019-08-06 |
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ID=67467859
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| CN201920170016.5U Expired - Fee Related CN209217774U (en) | 2019-01-31 | 2019-01-31 | A kind of electric bicycle intelligent charge real-time detection circuit |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824987A (en) * | 2019-11-04 | 2020-02-21 | 东北林业大学 | Forest surface moisture content monitoring system based on LoRa wireless ad hoc network |
| CN111002859A (en) * | 2019-12-11 | 2020-04-14 | 深圳猛犸电动科技有限公司 | Method and device for identifying private patch board of charging pile, terminal equipment and storage medium |
| CN112776652A (en) * | 2021-01-26 | 2021-05-11 | 深圳绿能网络科技有限公司 | Intelligent charging system |
| CN115122956A (en) * | 2022-07-01 | 2022-09-30 | 昇辉控股有限公司 | Electric bicycle intelligent charging circuit with ten-way channel |
| TWI785407B (en) * | 2019-11-17 | 2022-12-01 | 大陸商鯊灣科技（上海）有限公司 | Charging base and charging system |
-
2019
- 2019-01-31 CN CN201920170016.5U patent/CN209217774U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110824987A (en) * | 2019-11-04 | 2020-02-21 | 东北林业大学 | Forest surface moisture content monitoring system based on LoRa wireless ad hoc network |
| TWI785407B (en) * | 2019-11-17 | 2022-12-01 | 大陸商鯊灣科技（上海）有限公司 | Charging base and charging system |
| CN111002859A (en) * | 2019-12-11 | 2020-04-14 | 深圳猛犸电动科技有限公司 | Method and device for identifying private patch board of charging pile, terminal equipment and storage medium |
| CN112776652A (en) * | 2021-01-26 | 2021-05-11 | 深圳绿能网络科技有限公司 | Intelligent charging system |
| CN115122956A (en) * | 2022-07-01 | 2022-09-30 | 昇辉控股有限公司 | Electric bicycle intelligent charging circuit with ten-way channel |
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| GR01 | Patent grant | ||
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| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Nanjing Monte tech Environmental Protection Technology Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000110 Denomination of utility model: A kind of electric bicycle intelligent charge real-time detection circuit Granted publication date: 20190806 License type: Common License Record date: 20191015 |
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| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Anhui Arrow Electronics Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000145 Denomination of utility model: A kind of electric bicycle intelligent charge real-time detection circuit Granted publication date: 20190806 License type: Common License Record date: 20191022 Assignee: Nanjing Fogg Electric Co., Ltd. Assignor: Nanjing Forestry University Contract record no.: X2019320000143 Denomination of utility model: A kind of electric bicycle intelligent charge real-time detection circuit Granted publication date: 20190806 License type: Common License Record date: 20191022 |
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| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20190806 Termination date: 20200131 |