CN207488848U - A kind of DC charging motor with charging gun temperature monitoring module - Google Patents

A kind of DC charging motor with charging gun temperature monitoring module Download PDF

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Publication number
CN207488848U
CN207488848U CN201720755926.0U CN201720755926U CN207488848U CN 207488848 U CN207488848 U CN 207488848U CN 201720755926 U CN201720755926 U CN 201720755926U CN 207488848 U CN207488848 U CN 207488848U
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charging gun
module
buses
charging
master controller
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CN201720755926.0U
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Inventor
沈伟
仝利锋
谢永进
吕照中
康磊
张昉
王文相
刘国峰
郭�旗
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Cama Luoyang Electronics Co Ltd
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Cama Luoyang Electronics Co Ltd
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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02TCLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
    • Y02T10/00Road transport of goods or passengers
    • Y02T10/60Other road transportation technologies with climate change mitigation effect
    • Y02T10/70Energy storage systems for electromobility, e.g. batteries

Abstract

A kind of DC charging motor with charging gun temperature monitoring module, the charger includes master controller and the man-machine interaction display screen being connect with the master controller, it swipes the card module, power module, charging gun temperature monitoring module, power module, Insulation monitoring is released module, direct current energy meter, the charging gun temperature monitoring module includes microcontroller and the debugging download unit being connected with the microcontroller, acquisition control unit, power conversion unit, CAN1 buses, CAN2 buses, wherein microcontroller is connect by CAN1 buses with charging gun, it is connect by CAN2 buses with master controller, power conversion unit is connect with power module, acquisition control unit respectively with K1 contactors, K2 contactors and charging gun connection.The charging gun temperature monitoring module can to the charging gun of existing charging pile carry out upgrading, can effective monitoring charging gun operating temperature so as to ensure user there are one safe and intelligent use environment.

Description

A kind of DC charging motor with charging gun temperature monitoring module
Technical field
The utility model belongs to the charging gun domain of control temperature of charger, is supervised more particularly to a kind of band charging gun temperature Control the DC charging motor of module.
Background technology
With the continuous improvement of battery of electric vehicle capacity and production technology, the advantage of electric vehicle low-carbon environment-friendly Green Travel is cured Invention is aobvious, and the yield of electric vehicle has the growth advanced by leaps and bounds, and the requirement of electric automobile battery charger is increasing.However, it Preceding charger charging gun does not have temperature-detecting device, if use causes the quality of charging gun aging or rifle to be asked for a long time Topic causes gun body overheat to melt meeting even on fire and bring very big security risk to personal property.
The off-board conduction-type charger standard of electric vehicle that country in 2016 promulgates proposes temperature control requirement, but specific Temperature-controlled parameter and control logic not yet refine.In order to ensure the safety of electric vehicle charging time and meet new national standard, need Increase function of temperature control and carry out upgrading.Nearly two reach far away the electric automobile battery charger service life that produces and scrap the time limit, It is big to replace original master control system cost, modification is cumbersome, is not easy to realize.
It can be seen that the above-mentioned charging cabinet for not meeting new national standard is in function and the safety used, it is clear that there are still have Inconvenient and defect, and be urgently further improved.Above-mentioned in order to solve the problems, such as, relevant manufactures there's no one who doesn't or isn't painstakingly come Seek solution, but have no that applicable design is developed completing always for a long time, and common product is without appropriate structure It can solve the above problems, this is clearly the problem of correlation dealer is suddenly to be solved.
Utility model content
Charging gun the purpose of the utility model is to overcome existing electric vehicle DC charging motor is without function of temperature control, non-intelligence Can, security performance is low, non-compliant shortcoming, and provide a kind of DC charging motor with charging gun temperature monitoring module.
The purpose of this utility model and to solve its technical problem realized using following technical scheme.It is new according to this practicality A kind of DC charging motor with charging gun temperature monitoring module that type proposes, connect including master controller and with the master controller Man-machine interaction display screen, module of swiping the card, power module, charging gun temperature monitoring module, power module group, Insulation monitoring release Module, direct current energy meter further include the ac input end being connected with power module, accessory power supply, power module group, the auxiliary Power supply is connect by K2 contactor groups with charging gun;Temperature sensor is equipped in the charging gun, for acquiring in charging gun The temperature signal that DC power supply is just being born with DC power supply;The DC output end of the power module group passes sequentially through Insulation monitoring Module, direct current energy meter, the K1 contactor groups of releasing are connect with charging gun.
The charging gun temperature monitoring module includes microcontroller and the debugging download unit being connected with the microcontroller, adopts Collect control unit, power conversion unit, CAN1 buses and CAN2 buses, wherein microcontroller is connected by CAN1 buses and master controller It connects, connect by CAN2 buses with charging gun, the power conversion unit is connect with power module, the acquisition control unit point It is not connect with K1 contactors group, K2 contactors group and charging gun.
Preferably, the master controller is communicated by UART1 buses with man-machine interaction display screen, master controller passes through UART2 buses communicate with module of swiping the card, and master controller is communicated by CAN3 buses with power module group, and master controller passes through CAN4 Bus and Insulation monitoring module of releasing communicate, and master controller is communicated by RS485 buses with direct current energy meter.
By above-mentioned technical proposal, the utility model has clear advantage and advantageous effect compared with prior art.Its At least there are following advantages:
1st, the DC charging function with charging gun temperature monitoring module of the utility model monitors the temperature of charging pipette tips in real time Degree, when there is excess temperature situation, timely current limliting cools down.
2nd, the charging gun temperature monitoring module in the utility model DC charging motor has internal circuit simply, reliably, Its microcontroller chip of acquisition control circuit is at low cost, using modularized design, it is restructural, extendible the advantages that.
3rd, charging gun temperature monitoring module is communicated by CAN bus mode with internal master control system, flexible, Often increase a charging gun need to monitor, only need to increase a charging gun temperature monitoring module be articulated to connect with master controller lead to In the CAN bus of letter, you can control charging gun is opened and is closed and acquires the real time temperature of charging gun in real time.In this way, according to filling Charging gun is in different temperatures range and enables different temperature control strategies in motor operation course, ensures charger charging process Safety.
It 4th,, can be directly new by this practicality if it is without charging gun temperature detecting module for existing charger The charging gun temperature monitoring module proposed in type is installed and is debugged on existing charger, since its is at low cost, interface leads to It is strong with, autgmentability, it does not need to replace the master control system of existing charging pile, is very suitable for the upgrading of charger.
The above description is merely an outline of the technical solution of the present invention, in order to better understand the technology of the utility model Means, and being implemented in accordance with the contents of the specification, and to allow the above and other purpose of the utility model, feature and excellent Point can be clearer and more comprehensible, and special below to lift preferred embodiment, and coordinate attached drawing, detailed description are as follows.
Description of the drawings
Fig. 1 is the overall architecture schematic diagram of the DC charging motor of the utility model.
Fig. 2 is the attachment structure schematic diagram of the charging gun temperature monitoring module of the utility model.
Fig. 3 is the external interface schematic diagram of the charging gun temperature monitoring module of the utility model.
Specific embodiment
Further to illustrate that the utility model is to reach the technological means and effect that predetermined purpose of utility model taken, Below in conjunction with attached drawing and preferred embodiment, to according to the utility model proposes a kind of direct current with charging gun temperature monitoring module Charger its specific embodiment, structure, feature and its effect are described in detail as after.
As shown in Fig. 1 to 2, a kind of DC charging motor with charging gun temperature monitoring module, including master controller and with The man-machine interaction display screen of master controller connection, module of swiping the card, power module, charging gun temperature monitoring module, power module Group, Insulation monitoring are released module, direct current energy meter, are further included and are connected with power module, accessory power supply, power module and it is supplied The ac input end of electricity.The accessory power supply is connect by K2 contactor groups with charging gun;The charging gun is DC charging rifle, Two-way temperature sensor is equipped in it, DC power supply just (DC+) and the DC power supply being respectively used in acquisition charging gun are born (DC-) Temperature signal, be additionally provided with electronic lock in charging gun, charging gun in the case of charging normal can be avoided to come off;The power module group DC output end pass sequentially through release module, direct current energy meter, K1 contactor groups of Insulation monitoring and connect with charging gun, make charging Rifle can export direct current to electric vehicle.Specifically, the effect of K1 contactor groups is that control DC charging motor is defeated to electric vehicle Go out direct current, the effect of K2 contactor groups is that control accessory power supply is powered, and K1 contactors group, K2 connect to electric vehicle BMS Tentaculum group is made of two contactors, because the conveying of direct current just bears two-way including DC power supply with DC power supply, because This contactor control positive break-make of DC power supply, another contactor control DC power supply bear break-make.DC power supply is just general It is identified with DC+, is connect for the anode with electric vehicle;It is identified, is used for and electric vehicle with DC- as DC power supply negative one Battery cathode connection.
The charging gun temperature monitoring module includes microcontroller and the debugging download unit being connected with the microcontroller, acquisition Control unit, power conversion unit, CAN1 buses and CAN2 buses, wherein microcontroller are connected by CAN1 buses and master controller It connects, connect by CAN2 buses with charging gun, the power conversion unit is connect with power module, the acquisition control unit point It is not connect with K1 contactors, K2 contactors and charging gun.The list that charging gun temperature monitoring module in the utility model uses The model STM32F103C8T6 chips of piece machine;The chip model that charger master controller uses is STM32F103ZET6;It adjusts It is STC89C54RD that download unit institute, which is tried, using microcontroller model, which can carry out level conversion by external RS-232 chips It is connected to the serial ports of computer afterwards, is exported for programming program and on-line debugging;Acquisition control unit is by ULN2003AD chipsets Into ULN2003AD chips are high voltage high current darlington array, are made of 7 silicon NPN Darlingtons, its current gain is high, band Load capacity is strong, and the electromagnet in contactor and charging gun electronic lock is driven so as to control unlatching and closure with it.
Further, ac input end is powered to power module, accessory power supply, power module group, and power module will exchange Voltage is converted into 24V direct currents and powers for master controller.Power module is also converted with the power supply in charging gun temperature monitoring module Unit connects, which can be converted further into the 24V direct currents of input the list of charging gun temperature monitoring module Piece machine works normally required 3.3V DC voltages, specifically, above-mentioned power conversion unit includes 7805 voltage adaptation chips, It is mainly used for the conversion of system power supply, which is connected to the microcontroller of charging gun temperature monitoring module, will The direct current of 24V is converted into the DC voltage of 3.3V for its use.
Further, master controller is connect with man-machine interaction display screen by URAT1 buses and communicated, and completion was charged Human-computer interaction and information display function in journey.Master controller is connect with module of swiping the card by URAT2 buses and communicated, and completes to fill Before electricity swipe the card beginning and charging after settlement function of swiping the card.
Further, master controller is connected with power module group by CAN3 buses and communicated, and controls power module group Unlatching and closure, control charging process in modules output current and voltage.The specific power module group is by several Power module forms, and the power of each power module is 15KW, can be converted into the three-phase alternating current that ac input end provides directly Galvanic electricity exports for charging gun, the quantity that master controller can be according to actual demand power module to be controlled to start, if desired for filling Motor exports the power of 60KW, then master controller by CAN3 bus sending informations to power module group and starts four power moulds Block can be realized.
Further, master controller is connect and is communicated by CAN4 buses and Insulation monitoring module of releasing, insulation inspection Survey module of releasing is made of insulation monitoring module and module of releasing, and wherein insulation monitoring module can detect direct current electric wire anode and negative Pole ground insulation resistance carries out real-time guard so as to complete charging handshake phase to charger;Module of releasing and power module group It is attached, the voltage of charger direct current output circuit remnants can be released after Insulation monitoring terminates with charging process Fall, concrete measure is to connect bleeder resistance in power module outlet side to discharge, and the company of bleeder resistance is disconnected after the completion of releasing It connects.
Further, master controller is attached realization with direct current energy meter by RS485 buses and communicates, and completes charger The electrical energy measurement of direct current output.
Further, the microcontroller of charging monitoring module is connect by CAN2 buses with charging gun, and in charging, charging The charging socket of rifle and electric vehicle connects and then realizes that microcontroller is interacted with electric vehicle BMS, therefore charge in automobile In the case of CAN2 buses can realize that charging gun temperature monitoring module communicates with the BMS of electric vehicle.Charging gun monitoring temperature mould The microcontroller of block is connect with master controller by CAN1 buses and communicated, and in practical application, can be set on charger multiple Charging gun realizes that multiple gun exports electric energy simultaneously, then needs to set the charging gun temperature monitoring module of corresponding number, and will be newly-increased Charging gun temperature monitoring module is articulated in CAN1 buses and communicates with master controller, then newly-increased charging gun temperature monitoring module Acquisition control unit, CAN2 buses, power conversion unit access each module of charger and can monitor often in the same way The real time temperature of a charging gun.The Content of Communication of charging gun temperature monitoring module includes forwarding electric vehicle BMS messages, acquisition connects Tentaculum state, charging gun state of temperature etc., and charging gun temperature monitoring module can also receive and process master controller transmission Control the orders such as direct current output contactor group K1 and control charging gun electronic lock.Since CAN bus can mount many nodes, A new charging gun temperature monitoring module is often mounted, can be achieved with being communicated and being controlled with the BMS of an electric vehicle, because This realizes the one-to-many charge function of charger, substantially increases charger service efficiency.
Further, in charging gun temperature monitoring module, acquisition control unit is connect with K1 contactor groups, realizes control The break-make of DC current processed;Acquisition control unit is also connect with K2 contactor groups, switching on and off for controllable accessory power supply, auxiliary Power supply is helped as rectifier and the three-phase alternating current that ac input end provides can be converted into direct current in charger to electric vehicle It is used during charging for electric vehicle BMS;Acquisition control unit is also connect with charging gun, can acquire the temperature sensing inside charging gun Temperature measured by device and unlatching and the closure for controlling charging gun electronic lock, moreover it is possible to obtain electronic lock status feedback signal, each Status feedback signal, charging gun voltage signal in place of a contactor etc..As shown in Figure 1, charging gun temperature monitoring module is total to There are both threads to be connect with charging gun, wherein single line represent charging gun temperature monitoring module microcontroller by CAN2 buses with filling Electric rifle connection, another represents that acquisition control unit is connect with charging gun.
As shown in figure 3, it is charging gun temperature monitoring module external interface figure.Wherein XS5 is power supply interface, and VIN is+24V Supply input, IGND are input ground.XS6 is charging gun electronics lock interface, DJ+ and the DJ- controls unlatching of electronic lock, closure, defeated Go out signal, LOCK is the input signal for detecting electronics lock status.The AD0 of XS2 be charging gun voltage value input signal in place, ADT1 It is charging gun temperature detection input signal with ADT2, two-way temperature sensor meets ADT1 and ADT2 respectively;Charging gun monitoring temperature Charging gun voltage value and temperature value is calculated by AD conversion in module;CAN2H and CAN2L is communicated with electric vehicle BMS CAN interface.XS7 is the control output interface of accessory power supply, for controlling K2 contactor groups.IN1, IN2 DC+/DC- of XS1 Feedback signal input pin, CAN1H and CAN2L are charging gun monitoring temperature mould and master control system CAN communication interface.XS4's The output control interface of DC+ pins K1 contactor groups of DC circuit break-make in order to control.
The above descriptions are merely preferred embodiments of the present invention, and any person skilled in the art is not It is detached from the range of technical solutions of the utility model, according to the technical essence of the utility model any letter made to the above embodiment Single modification, equivalent variations and modification, in the range of still falling within technical solutions of the utility model.

Claims (2)

1. a kind of DC charging motor with charging gun temperature monitoring module, it is characterised in that:Including master controller and with the master Controller connection man-machine interaction display screen, module of swiping the card, power module, charging gun temperature monitoring module, power module group, absolutely Edge detects release module, direct current energy meter, further includes and exchanges input with what power module, accessory power supply, power module group were connected End,
The accessory power supply is connect by K2 contactor groups with charging gun;
Temperature sensor is equipped in the charging gun, for acquiring the temperature that the DC power supply in charging gun is just being born with DC power supply Signal;
The output terminal of the power module group passes sequentially through Insulation monitoring and releases module, direct current energy meter, K1 contactor groups with filling Electric rifle connection;
The charging gun temperature monitoring module includes microcontroller and the debugging download unit being connected with the microcontroller, acquisition control Unit processed, power conversion unit, CAN1 buses and CAN2 buses, wherein microcontroller connect by CAN1 buses with master controller, It is connect by CAN2 buses with charging gun, the power conversion unit is connect with power module, the acquisition control unit difference It is connect with K1 contactors group, K2 contactors group and charging gun.
2. the DC charging motor according to claim 1 with charging gun temperature monitoring module, the master controller pass through UART1 buses communicate with man-machine interaction display screen, and master controller is communicated by UART2 buses with module of swiping the card, and master controller leads to It crosses CAN3 buses to communicate with power module group, master controller is communicated by CAN4 buses and Insulation monitoring module of releasing, main control Device is communicated by RS485 buses with direct current energy meter.
CN201720755926.0U 2017-06-26 2017-06-26 A kind of DC charging motor with charging gun temperature monitoring module Active CN207488848U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107065972A (en) * 2017-06-26 2017-08-18 凯迈(洛阳)电子有限公司 A kind of DC charging motor and its temperature control method with charging gun temperature monitoring module
WO2022141204A1 (en) * 2020-12-30 2022-07-07 深圳欣锐科技股份有限公司 Electronic lock feedback control circuit

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107065972A (en) * 2017-06-26 2017-08-18 凯迈(洛阳)电子有限公司 A kind of DC charging motor and its temperature control method with charging gun temperature monitoring module
WO2022141204A1 (en) * 2020-12-30 2022-07-07 深圳欣锐科技股份有限公司 Electronic lock feedback control circuit

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