CN105655815A - New energy automobile charging gun with charging gun head achieving temperature protection function - Google Patents

New energy automobile charging gun with charging gun head achieving temperature protection function Download PDF

Info

Publication number
CN105655815A
CN105655815A CN201610152183.8A CN201610152183A CN105655815A CN 105655815 A CN105655815 A CN 105655815A CN 201610152183 A CN201610152183 A CN 201610152183A CN 105655815 A CN105655815 A CN 105655815A
Authority
CN
China
Prior art keywords
charging gun
jack
temperature
controlled switch
wire
Prior art date
Application number
CN201610152183.8A
Other languages
Chinese (zh)
Other versions
CN105655815B (en
Inventor
杨娈
Original Assignee
绵阳高新区探索科技有限责任公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 绵阳高新区探索科技有限责任公司 filed Critical 绵阳高新区探索科技有限责任公司
Priority to CN201610152183.8A priority Critical patent/CN105655815B/en
Publication of CN105655815A publication Critical patent/CN105655815A/en
Application granted granted Critical
Publication of CN105655815B publication Critical patent/CN105655815B/en

Links

Classifications

    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B60VEHICLES IN GENERAL
    • B60LPROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
    • B60L53/00Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles
    • B60L53/10Methods of charging batteries, specially adapted for electric vehicles; Charging stations or on-board charging equipment therefor; Exchange of energy storage elements in electric vehicles characterised by the energy transfer between the charging station and the vehicle
    • B60L53/14Conductive energy transfer
    • B60L53/16Connectors, e.g. plugs or sockets, specially adapted for charging electric vehicles
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/665Structural association with built-in electrical component with built-in electronic circuit
    • H01R13/6683Structural association with built-in electrical component with built-in electronic circuit with built-in sensor
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R13/00Details of coupling devices of the kinds covered by groups H01R12/70 or H01R24/00 - H01R33/00
    • H01R13/66Structural association with built-in electrical component
    • H01R13/70Structural association with built-in electrical component with built-in switch
    • H01R13/713Structural association with built-in electrical component with built-in switch the switch being a safety switch
    • H01R13/7137Structural association with built-in electrical component with built-in switch the switch being a safety switch with thermal interrupter
    • HELECTRICITY
    • H01BASIC ELECTRIC ELEMENTS
    • H01RELECTRICALLY-CONDUCTIVE CONNECTIONS; STRUCTURAL ASSOCIATIONS OF A PLURALITY OF MUTUALLY-INSULATED ELECTRICAL CONNECTING ELEMENTS; COUPLING DEVICES; CURRENT COLLECTORS
    • H01R2201/00Connectors or connections adapted for particular applications
    • H01R2201/26Connectors or connections adapted for particular applications for vehicles
    • 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
    • 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
    • Y02T10/7072Electromobility specific charging systems or methods for batteries, ultracapacitors, supercapacitors or double-layer capacitors
    • 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
    • Y02T90/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02T90/10Technologies relating to charging of electric vehicles
    • Y02T90/14Plug-in electric vehicles

Abstract

The invention discloses a new energy automobile charging gun with a charging gun head achieving a temperature protection function. The new energy automobile charging gun comprises a charging plug, an on-cable control box and the charging gun head; the on-cable control box comprises an outer power supplying control device which comprises a PWM output end and a PWM monitoring end, the PWM output end is connected with a CP signal wire jack, and the PWM monitoring end is connected between the PWM output end and the CP signal wire jack; a temperature-controlled switch is fixedly arranged in a shell, and the two ends of the temperature-controlled switch are connected with a ground wire jack and a CP signal wire respectively; a live wire and a null wire are each provided with a switch. According to the new energy automobile charging gun with the charging gun head achieving the temperature protection function, the circuit structure is simple, and the purpose of automatically controlling charging according to the temperature is achieved by adopting the mode that the temperature-controlled switch intervenes in CP signals; the condition that in the prior art, due to the fact that a signal cannot be sent out in time to inform the on-cable control box on the condition that the temperature of the charging gun head is abnormal, heat is accumulated more and more, and a short circuit between a socket and the plug is generated is overcome.

Description

The new-energy automobile charging gun of a kind of charging gun headband temperature protection function
Technical field
The present invention relates to a kind of charging plant, particularly relate to the new-energy automobile charging gun of a kind of charging gun headband temperature protection function.
Background technology
Along with the raising of people's living standard, and the environmental protection advocated now, energy-conservation, the green ecological earth trend, electromobile is under the support energetically of country, and development is more and more grown, application is more and more extensive, and the charging gun supporting with electromobile is also correspondingly thereupon fast-developing.
Electromobile realizes charging when charging by charging gun cable, and charging gun comprises a charging gun head being connected with automobile, containing several charging jacks on rifle head, corresponding with automobile connect and it is vehicle charging, one of them jack is CP signal wire jack, by CP signal wire connection control device
On cable, control enclosure comprises and generally all comprises a power supply control apparatus, power supply control apparatus comprises PWM output terminal and PWM monitoring side, by PWM output terminal output pwm signal, also it is exactly the CP signal that we say, it is sent to automobile, and a check point is set on CP signal wire to detect this CP signal, concrete mode is: by measuring the magnitude of voltage of check point, described power supply control apparatus judges that whether vehicle is ready, thus determines the need of conducting charging gun head and charging plug.
Charging gun head end do not have temperature protection function, when charging, if charging gun head part breaks down, can cause rifle hair heat to a great extent, but owing to not having temperature detecting function, on cable, controller cannot judge, charging gun head can not stop work; Heat accumulation is increasing causes socket and plug short-circuit conditions occur, and serious even can cause fire.
Summary of the invention
ThisInventionObject just be provide one solve the problem; can can send signal in time in charging gun head temperature anomaly situation and inform control enclosure on cable; and stop charging by the control of control enclosure on cable; high temperature is avoided to cause rifle head fault; after temperature return is normal, the new-energy automobile charging gun of a kind of charging gun headband temperature protection function that can automatically again charge.
In order to realize above-mentioned purpose, the technical solution used in the present invention is such: the new-energy automobile charging gun of a kind of charging gun headband temperature protection function, comprise control enclosure and charging gun head on charging plug, cable, described charging gun head comprises housing and is positioned at the jack of shell end, and described jack comprises CP signal wire jack, ground wire jack, firewire jack and zero line jack;
On described cable, control enclosure comprises shell, is positioned at the microprocessor of shell and power supply control apparatus, described power supply control apparatus comprises PWM output terminal and PWM monitoring side, described PWM output terminal connects CP signal wire jack, and described PWM output terminal is connected between PWM output terminal and CP signal wire jack;
Being provided with a temperature controlled switch in described housing, described temperature controlled switch is fixed on enclosure interior, and two ends are grounding wire jack and CP signal wire respectively; Housing is also provided with the maintenance mouth of maintenance temperature controlled switch;
The charging live wire of plug, zero line, ground wire are directly connected with the firewire jack of charging gun head, zero line jack, ground wire jack, and are respectively equipped with switch on live wire, zero line.
As preferably: described temperature controlled switch is positioned at housing near shell end place.
As preferably: the switch arranged on live wire, zero line is positioned at the enclosure of control enclosure.
Compared with prior art, it is an advantage of the current invention that: circuit structure is simple, without the need to redesigning charging gun circuit, do not increase controller, do not increase the communications cable, temperature controlled switch is placed in enclosure interior, do not affect charging gun one-piece construction, adopt temperature controlled switch to interfere the mode of CP signal, just reach the object automatically charged according to temperature control. Overcome in prior art, signal can not be sent in time in charging gun head temperature anomaly situation and inform control enclosure on cable, cause that heat accumulation is increasing causes socket and plug short-circuit conditions occur, the serious defect that even can cause fire.
In the present invention, when temperature exceedes the saltus step temperature of temperature controlled switch, temperature controlled switch closes, CP signal and ground wire are connected, being drawn by waveform signal low, on cable, the PWM monitoring side of the power supply control apparatus in control enclosure cannot detect normal CP signal, and microprocessor will cut off the switch on live wire, zero line, making charging plug stop being powered by charging gun head, charging gun head cannot charge. Working as decrease in temperature, during lower than the saltus step temperature of temperature controlled switch, temperature controlled switch is opened, and CP signal and ground wire are disconnected, and CP signal recuperation is normal, and microprocessor closes the switch on live wire, zero line, and charging gun head normally charges.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention;
Fig. 2 is the schematic circuit diagram of the present invention.
In figure: 1, housing; 2, control enclosure on cable; 3, charge plug; 4, temperature controlled switch; 5, CP signal wire jack; 6, ground wire jack; 7, mouth is overhauled.
Embodiment
Below in conjunction with accompanying drawing to thisInventionIt is described further.
Embodiment 1: see Fig. 1, Fig. 2, the new-energy automobile charging gun of a kind of charging gun headband temperature protection function, comprise control enclosure 2 and charging gun head on charging plug 3, cable, described charging gun head comprises housing 1 and is positioned at the jack of housing 1 end, and described jack comprises CP signal wire jack 5, ground wire jack 6, firewire jack and zero line jack; On described cable, control enclosure 2 comprises shell, is positioned at the microprocessor of shell and power supply control apparatus, described power supply control apparatus comprises PWM output terminal and PWM monitoring side, described PWM output terminal connects CP signal wire jack 5, and described PWM output terminal is connected between PWM output terminal and CP signal wire jack 5;
Being provided with a temperature controlled switch 4 in described housing 1, it is inner that described temperature controlled switch 4 is fixed on housing 1, and two ends are grounding wire jack 6 and CP signal wire respectively; Housing 1 is also provided with the maintenance mouth 7 of maintenance temperature controlled switch 4;
The charging live wire of plug 3, zero line, ground wire are directly connected with the firewire jack of charging gun head, zero line jack, ground wire jack 6, and are respectively equipped with switch on live wire, zero line.
In the present invention, described temperature controlled switch 4 is positioned at housing 1 near housing 1 end; The switch arranged on live wire, zero line is positioned at the enclosure of control enclosure.
The principle of work of the present invention is: arranges a temperature controlled switch 4 in housing 1 inside of charging gun head, interferes CP signal by temperature controlled switch 4.
In order to further describe principle of work of the present invention, we are described by composition graphs 2, on cable in control enclosure 2, live wire L, zero line N meet K switch 1, K2 respectively, and power supply control apparatus comprises PWM output terminal and PWM monitoring side, and check point is positioned on the right side of resistance R1;
In charging gun head, described jack comprises CP signal wire jack 5, ground wire jack 6, firewire jack and zero line jack; Meeting CP signal wire, ground wire N, live wire L, zero line PE respectively, temperature controlled switch 4R3 is between zero line PE and CP signal wire.
Charging gun is started working, and the temperature of rifle head position is monitored by temperature controlled switch 4, if breaking down heat production, and temperature is when exceeding the saltus step temperature of temperature controlled switch 4, switch closes, and CP signal and ground wire is connected, is drawn by waveform signal low, on cable in control enclosure 2, power supply control apparatus PWM monitoring side monitors abnormal CP signal, feeds back to microprocessor, and microprocessor will cut off the switch on live wire, zero line, thus control charging plug 3 and stop being powered by charging gun head, charging gun head cannot charge. Working as decrease in temperature, during lower than the saltus step temperature of temperature controlled switch 4, temperature controlled switch 4 is opened, and CP signal and ground wire are disconnected, and CP signal recuperation is normal, and microprocessor closes the switch on live wire, zero line, and charging gun head normally charges.

Claims (3)

1. the new-energy automobile charging gun of a charging gun headband temperature protection function, comprise control enclosure and charging gun head on charging plug, cable, described charging gun head comprises housing and is positioned at the jack of shell end, and described jack comprises CP signal wire jack, ground wire jack, firewire jack and zero line jack;
It is characterized in that: on described cable, control enclosure comprises shell, is positioned at the microprocessor of shell and power supply control apparatus, described power supply control apparatus comprises PWM output terminal and PWM monitoring side, described PWM output terminal connects CP signal wire jack, and described PWM output terminal is connected between PWM output terminal and CP signal wire jack;
Being provided with a temperature controlled switch in described housing, described temperature controlled switch is fixed on enclosure interior, and two ends are grounding wire jack and CP signal wire respectively; Housing is also provided with the maintenance mouth of maintenance temperature controlled switch;
The charging live wire of plug, zero line, ground wire are directly connected with the firewire jack of charging gun head, zero line jack, ground wire jack, and are respectively equipped with switch on live wire, zero line.
2. the new-energy automobile charging gun of a kind of charging gun headband temperature protection function according to claim 1, it is characterised in that: described temperature controlled switch is positioned at housing near shell end place.
3. the new-energy automobile charging gun of a kind of charging gun headband temperature protection function according to claim 1, it is characterised in that: the switch arranged on live wire, zero line is positioned at the enclosure of control enclosure.
CN201610152183.8A 2016-03-17 2016-03-17 A kind of new-energy automobile charging gun of charging gun headband temperature protection function CN105655815B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201610152183.8A CN105655815B (en) 2016-03-17 2016-03-17 A kind of new-energy automobile charging gun of charging gun headband temperature protection function

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201610152183.8A CN105655815B (en) 2016-03-17 2016-03-17 A kind of new-energy automobile charging gun of charging gun headband temperature protection function

Publications (2)

Publication Number Publication Date
CN105655815A true CN105655815A (en) 2016-06-08
CN105655815B CN105655815B (en) 2018-09-21

Family

ID=56493948

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201610152183.8A CN105655815B (en) 2016-03-17 2016-03-17 A kind of new-energy automobile charging gun of charging gun headband temperature protection function

Country Status (1)

Country Link
CN (1) CN105655815B (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106427623A (en) * 2016-10-11 2017-02-22 周峰 Electric automobile charger with key input function
CN106450954A (en) * 2016-10-13 2017-02-22 周峰 Electric car charging gun with alarming function
CN107585040A (en) * 2017-08-22 2018-01-16 安徽明瑞智能科技股份有限公司 A kind of charging pipette tips fixing device of charging pile
CN109435751A (en) * 2018-10-25 2019-03-08 重庆金康动力新能源有限公司 A kind of method and system of electric car charge control
CN110001429A (en) * 2019-04-22 2019-07-12 王盼 A kind of automobile-used charging gun of New energy electric
EP3582996A4 (en) * 2017-02-15 2021-01-13 Webasto Charging Systems Inc Thermal management of electric vehicle coupler contacts

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202759276U (en) * 2012-08-06 2013-02-27 上海捷能汽车技术有限公司 Vehicle alternating current charging protection device
CN202817703U (en) * 2012-03-16 2013-03-20 深圳巴斯巴科技发展有限公司 AC charging device temperature-detecting device
CN203275560U (en) * 2013-05-02 2013-11-06 上海汽车集团股份有限公司 AC charging connection system for electromobile
CN103595105A (en) * 2013-11-29 2014-02-19 上海埃士工业科技有限公司 Device and method for controlling charging on vehicle
CN204793480U (en) * 2015-06-10 2015-11-18 华晨汽车集团控股有限公司 Electric automobile charges with connecting and confirms device
CN105186632A (en) * 2015-10-16 2015-12-23 中航通飞华南飞机工业有限公司 Airplane airborne storage battery automation charge/discharge machine control system
CN205004737U (en) * 2015-07-28 2016-01-27 王大建 Storage battery charging is overheated to prevent short -circuiting device
CN206272266U (en) * 2016-11-09 2017-06-20 上海与德信息技术有限公司 A kind of electronic equipment

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN202817703U (en) * 2012-03-16 2013-03-20 深圳巴斯巴科技发展有限公司 AC charging device temperature-detecting device
CN202759276U (en) * 2012-08-06 2013-02-27 上海捷能汽车技术有限公司 Vehicle alternating current charging protection device
CN203275560U (en) * 2013-05-02 2013-11-06 上海汽车集团股份有限公司 AC charging connection system for electromobile
CN103595105A (en) * 2013-11-29 2014-02-19 上海埃士工业科技有限公司 Device and method for controlling charging on vehicle
CN204793480U (en) * 2015-06-10 2015-11-18 华晨汽车集团控股有限公司 Electric automobile charges with connecting and confirms device
CN205004737U (en) * 2015-07-28 2016-01-27 王大建 Storage battery charging is overheated to prevent short -circuiting device
CN105186632A (en) * 2015-10-16 2015-12-23 中航通飞华南飞机工业有限公司 Airplane airborne storage battery automation charge/discharge machine control system
CN206272266U (en) * 2016-11-09 2017-06-20 上海与德信息技术有限公司 A kind of electronic equipment

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106427623A (en) * 2016-10-11 2017-02-22 周峰 Electric automobile charger with key input function
CN106450954A (en) * 2016-10-13 2017-02-22 周峰 Electric car charging gun with alarming function
EP3582996A4 (en) * 2017-02-15 2021-01-13 Webasto Charging Systems Inc Thermal management of electric vehicle coupler contacts
CN107585040A (en) * 2017-08-22 2018-01-16 安徽明瑞智能科技股份有限公司 A kind of charging pipette tips fixing device of charging pile
CN109435751A (en) * 2018-10-25 2019-03-08 重庆金康动力新能源有限公司 A kind of method and system of electric car charge control
CN110001429A (en) * 2019-04-22 2019-07-12 王盼 A kind of automobile-used charging gun of New energy electric
CN110001429B (en) * 2019-04-22 2020-11-13 乐清泰起知识产权服务有限公司 New forms of energy is rifle that charges for electric motor car

Also Published As

Publication number Publication date
CN105655815B (en) 2018-09-21

Similar Documents

Publication Publication Date Title
US9685800B2 (en) Charging/discharging system
CN104348141A (en) Overcurrent and overvoltage protection circuit and method for electronic cigarette
CN103879291B (en) A kind of safety device of vehicle
CN103587484B (en) A kind of electrical vehicle charging connection device
CN103477494B (en) Vehicular battery and the method being used for running this battery
CN102111006B (en) Charging connector contact resistance detection device and charging control method
CN102061590A (en) Combined type washing drier system and control method thereof
CN103944230B (en) The charging system of mobile terminal, method and charger
CN104600815A (en) Electromobile charging system and charging control method
CN205067625U (en) Portable electric detection means of filling of electric vehicle and detecting system that charges
CN103825253B (en) Battery of electric vehicle safety control and control method
CA2792310A1 (en) Electronic control unit
CN202888749U (en) Intelligent high-voltage distributing box for electric vehicle
CN203398771U (en) Over-current and over-voltage protection circuit for electronic cigarette
CN103001279B (en) Vehicle charge device
CN205044559U (en) Electricelectric moves light bus high voltage distributor box
EP2980957B1 (en) Connector for electrical connection
CN104201747B (en) A kind of electric automobile trickle charge open circuit fault processing method and processing device
CN102231489A (en) Device for monitoring grounding wire connection status during power line maintenance work and monitoring method thereof
CN103855678B (en) Overvoltage and undervoltage protection circuit of drive power source
CN104527446A (en) High-pressure safety electric interlocking mechanism of electro-mobile, control method and electro-mobile
CN104608637A (en) Power-on and power-off control method for electric automobile
CN203275560U (en) AC charging connection system for electromobile
CN101888114A (en) Multifunctional power supply of vehicular automotive electronic device
CN105790370A (en) High and low voltage interlocking device and method of using device for realizing power on and power off

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
GR01 Patent grant
GR01 Patent grant