CN113643454A - Fill electric pile on-site security and synthesize inspection device - Google Patents
Fill electric pile on-site security and synthesize inspection device Download PDFInfo
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- CN113643454A CN113643454A CN202110913107.5A CN202110913107A CN113643454A CN 113643454 A CN113643454 A CN 113643454A CN 202110913107 A CN202110913107 A CN 202110913107A CN 113643454 A CN113643454 A CN 113643454A
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- G—PHYSICS
- G07—CHECKING-DEVICES
- G07C—TIME OR ATTENDANCE REGISTERS; REGISTERING OR INDICATING THE WORKING OF MACHINES; GENERATING RANDOM NUMBERS; VOTING OR LOTTERY APPARATUS; ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDED FOR ELSEWHERE
- G07C1/00—Registering, indicating or recording the time of events or elapsed time, e.g. time-recorders for work people
- G07C1/20—Checking timed patrols, e.g. of watchman
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
Abstract
The invention discloses a comprehensive field safety inspection device for a charging pile, which is used for detecting the field safety problem of a load device connected with a direct current charging pile and comprises a safety detection module, a BMS simulation device, an oscillography module and a main control computer which are integrated in the same tool box; the safety detection module is used for detecting the temperature rise condition, the insulation condition, the noise magnitude and whether harmful gas exceeds the standard or not in the charging process of the direct current charging pile; the BMS simulator is internally provided with a battery voltage simulation circuit, has a simulation function of the starting voltage of the direct current charging pile, and is used for detecting whether the direct current charging pile has a safety judgment function when the voltage of load equipment is abnormal. The device is safe and portable, can complete various safety detections of charging pile sites, and has wide application space.
Description
Technical Field
The invention relates to the technical field of charging piles, in particular to a field safety comprehensive inspection device for a charging pile.
Background
The construction of the charging station is to ensure safety. The charging station is constructed in consideration of safety, charging equipment and a system are safe, and the safety problem of the charging station is very important, so that in case of danger, the safety of a charging vehicle and a vehicle owner is not only concerned, but also has great influence on the safety of surrounding personnel and buildings. Regarding the setting of charging station monitored control system, should possess omnidirectional monitored control system in large-scale vehicle charging station, can guarantee the safety of charging process on the one hand, need in time master charging environment and charging data, can in time discover the abnormal conditions of battery charging outfit in addition. The whole monitoring system covers all places of the charging station to realize the collection and real-time display of related data; the monitoring of the charging system is to ensure that the data of the charging equipment can be known in time, and the charging condition is ensured to be mastered. According to the GB/T24421.3-2009 service organization standardization work guide part 3: the requirements of the standard writing, combined with the relevant requirements of the national standard and the specific situation in the safe operation process of the new energy electric vehicle charging system, are divided into the following 13 parts in the safety technical specification of the new energy electric vehicle charging system (note: DB 3212/T1031 and 2021 local standard of the unit of the invention draft): scope, normative citation, terms and definitions, basic requirements, charging system make-up, charging device safety requirements, charging station operational safety requirements, charging station construction safety requirements, charging facility integrity safety checks, charging facility power supply system safety checks, charging facility charging system safety checks, charging facility monitoring system safety checks, charging facility fire protection facility safety checks.
The design of the charging station with clear basic requirements is in accordance with the related requirements of GB/T29781-. The charging system is mainly composed of 7 parts including charging equipment (alternating current charging piles and off-board direct current chargers), a power distribution system, fire-fighting facilities, monitoring equipment, a charging operation platform, electric vehicles, electric vehicle users and the like. The safety requirements of the charging equipment specify the relevant contents and specific requirements of the off-board direct-current charger and the alternating-current charging pile, such as electrical safety, communication safety, mechanical safety, physical safety and the like. The charging station operation safety requirements specify the related safety requirements of general regulations, operation service, maintenance, transaction safety and the like of the charging station involved in the charging station operation process. The safety requirements of the charging station construction specify the relevant safety requirements of a power distribution system, a monitoring system and a fire fighting facility involved in the charging station construction process.
At present, safety detection of electric automobile charging piles does not have a special metering instrument, and safety detection is completed in an electric automobile detection workshop before factory inspection and installation. The state of the charging pile during the simulation charging of the detection workshop is detected, and various safety parameters are detected by various detection instruments (generally installed in an equipment cabinet).
The above method has several problems: (1) the charging pile is in a detection room environment and is inconsistent with the temperature and humidity conditions on site; parameter distortion is caused, if the ground resistance item of the insulation resistor (2) cannot reflect the actual ground resistance of the ground of a charging pile installation site, only the resistor (3) of the grounding copper strip is reflected, toxic and harmful gas is detected in a sealed environment, and detection and personal safety are affected. (4) Part of the collected data (such as noise) needs manual recording, manual calculation and manual qualification judgment, the checking and calibration efficiency is low, and the risk of errors exists. (5) The detection can not be carried out on site, and the volume is large.
Disclosure of Invention
In order to overcome the defects of the prior art, the invention provides a field safety comprehensive inspection device for a charging pile.
The invention adopts the following technical scheme:
a comprehensive field safety inspection device for a charging pile is used for detecting the field safety problem of a load device connected with a direct current charging pile and comprises a safety detection module, a BMS simulation device, an oscillography module and a main control computer which are integrated in the same tool box;
the safety detection module is used for detecting the temperature rise condition, the insulation condition, the noise magnitude and whether harmful gas exceeds the standard or not in the charging process of the direct current charging pile;
the BMS simulation device is internally provided with a battery voltage simulation circuit, has a simulation function of the starting voltage of the direct current charging pile, and is used for detecting whether the direct current charging pile has a safety judgment function when the voltage of the load equipment is abnormal;
the load equipment is connected with the BMS simulation device through the power loop, and the BMS simulation device is connected with the direct current charging pile through the power loop;
the oscillography module is respectively connected with the direct current charging pile, the BMS simulation device and the load equipment through sampling lines;
and the master control machine is respectively connected with the safety detection module, the BMS simulation device, the oscillography module and the load equipment through communication wires.
Furthermore, the safety detection module comprises a harmful gas sensor, a noise sensor, a temperature and humidity detection probe, a metal thermocouple temperature surface patch probe and an analog insulation resistance detection circuit.
Furthermore, the harmful gas sensor adopts an S-M4 intelligent gas sensor, and the output end of the S-M4 intelligent gas sensor is connected with a safety detection module;
the S-M4 intelligent gas sensor is provided with a special insulating hose, one end of the special insulating hose is connected with a special interface of the safety detection module, and the other end of the special insulating hose is moved to a suspicious position of the direct current charging pile.
Furthermore, the noise sensor is provided with an analog quantity noise transmitter which outputs 4-20mA and has a measuring range of 30dB-130dB, and the output end of the noise sensor is connected with the safety detection module.
Further, temperature and humidity detection probe is used for gathering ambient temperature and humidity and the temperature rise of each key component of direct current charging pile, temperature and humidity detection probe embeds converting circuit, and its probe adopts high accuracy digital sensor probe.
Furthermore, the metal thermocouple surface-temperature patch probe is provided with two sets of temperature acquisition equipment, one set of temperature acquisition equipment is used for acquiring the ambient temperature, and the other set of temperature acquisition equipment is used for acquiring the surface temperature of the pile body of the direct-current charging pile.
Furthermore, the simulation insulation resistance detection circuit is provided with 8-grade insulation resistance and is used for simulating that the insulation of the electric vehicle is qualified and that the insulation of the electric vehicle is unqualified is a resistance value, and testing whether the safety protection of the charging pile is started or not when the insulation of the electric vehicle is unqualified.
Further, the battery voltage simulation circuit is provided with a detection point CC1 and a detection point CC2, the detection point CC1 is used for detecting whether the R4 of the electric automobile to be charged is normal, and the detection point CC2 is used for detecting whether the pull-up voltage U2 of the electric automobile to be charged is normal;
r4 is connected with a function of confirming resistance simulation, the resistance adjusting range is 400-2500 omega, the adjusting step is 1 omega, the resistance value can be manually set and adjusted according to the requirement or automatically adjusted through integrated software, and the power supply output is closed when the resistance value is detected to be abnormal;
the U2 voltage value may be adjusted manually as desired or automatically by integrated software.
Further, the main control computer is provided with an oscillography module, a report can be generated after the test is finished, and the test items comprise a connection confirmation test, a charging preparation ready test, a starting and charging stage test, a normal charging ending test, a charging connection control timing test, a CC disconnection test, a CP grounding test, a protection grounding conductor continuity loss test, an output overcurrent test, a disconnection switch S2 test and a CP loop voltage limit test.
Furthermore, the toolbox is provided with an instrument panel, and the instrument panel is provided with a charging pile connecting gun seat interface, a load end connecting gun seat interface, a charging current measuring interface, a charging pile gun head external connection banana jack, a pulse interface, a toxic and harmful sensor interface, a surface temperature interface, an RS232 communication interface, a temperature and humidity interface, a noise interface, a GPS interface and an LAN interface.
The beneficial technical effects obtained by adopting the technical scheme are as follows:
safety inspection module, BMS analogue means, oscillography module integration satisfy portable requirement in same toolbox.
The safety detection module completes the safety test of the insulation resistance; the functions of collecting the environmental temperature and humidity measurement and temperature rise of each key part of the charging pile are completed; the function of collecting the field noise is completed; the problem of generating poisonous and harmful gas during charging is solved.
The field safety comprehensive inspection device for the charging pile has the simulation function of solving the starting voltage of the charging pile; the simulation function of the solution voltage U2 is realized; two test tests of a voltage type and a current type are solved; the problems of analyzing the working state of the charging pile and diagnosing abnormal faults are solved; realizing calculation and printing of an original report; the testing method solves the problem of electric automobile conductive charging interoperability. Has wide application space.
Drawings
Fig. 1 is a schematic diagram of a comprehensive field safety inspection device for a charging pile.
Fig. 2 is a structural block diagram of a comprehensive field safety inspection device for a charging pile.
Fig. 3 is a wiring diagram of the comprehensive field-safety inspection device for the charging pile.
Fig. 4 is a schematic diagram of a wiring port of the comprehensive field safety inspection device of the charging pile.
Fig. 5 is a schematic diagram of a wiring port of the comprehensive field safety inspection device for the charging pile.
Fig. 6 is a schematic diagram of a test report of the comprehensive field safety inspection device for the charging pile.
Fig. 7 is a test waveform diagram of the field safety comprehensive inspection device of the charging pile.
In the figure, 1, an instrument panel, 2, a charging pile is connected with a gun seat interface, 3, a load end is connected with the gun seat interface, 4, a charging current measuring interface, 5, a banana socket is led out of a charging pile gun head, 6 and a BMS simulation device, 7 and U2 pull-up voltages, 8 and R4 adjustable program control main boards, 9, a pulse interface, 10, a toxic and harmful sensor interface, 11, a surface temperature interface, 12 and RS232 communication interfaces, 13, a temperature and humidity interface, 14, a noise interface, 15, a GPS interface, 16 and a LAN interface;
21. the power supply system comprises a first power supply output interface, 21 ', a first power supply input interface, 22, a second power supply output interface, 22', a second power supply input interface, 23, a third power supply output interface, 23 ', a third power supply input interface, 24, a fourth power supply output interface, 24', a fourth power supply input interface, 25, communication interfaces I and 26, communication interfaces II and 27, LED nixie tubes, 28, a work indicator light, 29 and an analog voltage output interface.
Detailed Description
The technical solutions in the embodiments of the present invention are clearly and completely described with reference to fig. 1 to 7, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
A comprehensive field safety inspection device for a charging pile is used for detecting the field safety problem of a load device connected with a direct current charging pile and comprises a safety detection module, a BMS simulation device, an oscillography module and a main control computer which are integrated in the same tool box; the safety detection module is used for detecting the temperature rise condition, the insulation condition, the noise magnitude and whether harmful gas exceeds the standard or not in the charging process of the direct current charging pile; the BMS simulation device is internally provided with a battery voltage simulation circuit, has a simulation function of the starting voltage of the direct current charging pile, and is used for detecting whether the direct current charging pile has a safety judgment function when the voltage of the load equipment is abnormal; the load equipment is connected with the BMS simulation device through the power loop, and the BMS simulation device is connected with the direct current charging pile through the power loop; the oscillography module is respectively connected with the direct current charging pile, the BMS simulation device and the load equipment through sampling lines; and the master control machine is respectively connected with the safety detection module, the BMS simulation device, the oscillography module and the load equipment through communication wires.
The main control computer is a notebook computer to meet the requirement of on-site detection.
The adjustable direct current load of the battery simulator in fig. 1 is meant to simulate the power battery of the electric vehicle being charged. The voltage and the current are adjustable because various charged electric vehicles are simulated; the low voltage auxiliary power load is an instrument line battery simulating an electric vehicle being charged. If the load is not connected, the current cannot be output, and part of parameters cannot be detected. The adjustable direct current load and the low-voltage auxiliary power supply load are load equipment.
The safety detection module comprises a harmful gas sensor, a noise sensor, a temperature and humidity detection probe, a metal thermocouple temperature surface patch probe and a simulation insulation resistance detection circuit.
The harmful gas sensor is an S-M4 intelligent gas sensor, and the output end of the S-M4 intelligent gas sensor is connected with the safety detection module; the S-M4 intelligent gas sensor is provided with a special insulating hose, one end of the special insulating hose is connected with a special interface of the safety detection module, and the other end of the special insulating hose is moved to a suspicious position of the direct current charging pile.
The noise sensor is provided with an analog quantity noise transmitter, the output of the analog quantity noise transmitter is 4-20mA, the measuring range is 30dB-130dB, and the output end of the noise sensor is connected with the safety detection module.
The temperature and humidity detection probe is used for collecting the ambient temperature, the humidity and the temperature rise of each key component of the direct-current charging pile, the temperature and humidity detection probe is internally provided with a conversion circuit, and the probe adopts a high-precision digital sensor probe.
The metal thermocouple temperature surface patch probe is provided with two sets of temperature acquisition equipment, one set of temperature acquisition equipment is used for acquiring the ambient temperature, and the other set of temperature acquisition equipment is used for acquiring the surface temperature of the direct-current charging pile body.
The simulation insulation resistance detection circuit is provided with 8 insulation resistances and is used for simulating that the insulation of the electric vehicle is qualified and unqualified and is a resistance value, and testing whether the safety protection of the charging pile is started or not when the insulation of the electric vehicle is unqualified.
As shown in fig. 3, the battery voltage simulation circuit is provided with a detection point CC1 and a detection point CC2, the detection point CC1 is used for detecting whether the R4 of the electric vehicle to be charged is normal, and the detection point CC2 is used for detecting whether the pull-up voltage U2 of the electric vehicle to be charged is normal; r4 is connected to confirm the resistance simulation function, the resistance adjusting range is 400-2500 omega, the adjusting step is 1 omega, the resistance value can be manually set and adjusted according to the requirement or automatically adjusted through integrated software, and the power supply output is closed when the resistance value is detected to be abnormal.
The U2 voltage value may be adjusted manually as desired or automatically by integrated software. During charging, if the off-board charging device does not receive the voltage of the charging level requirement U2 within 100ms, the off-board charging device also responds to the function of turning off the output of the direct-current power supply.
The battery voltage simulation circuit is internally provided with a high-precision Hall transformer with the precision of 0.05 percent and the range of 0-300A, is provided with two test interfaces of a voltage type and a current type, and can be used for verification by various methods.
An instrument panel of the tool box is shown in fig. 4, a charging pile connecting gun seat interface 2 is arranged on an instrument panel 1, a load end is connected with a gun seat interface 3, a charging current measuring interface 4, a banana plug 5 led out of a charging pile gun head, a BMS simulator 6, a built-in BMS guide loop and a communication program, a U2 pull-up voltage 7, an R4 adjustable program-controlled mainboard 8, a pulse interface 9, an oscilloscope, a poisonous and harmful sensor interface 10, a gas sensor, a surface temperature interface 11, a surface temperature sensor and an RS232 communication interface 12 are connected, a USB is switched through a converter to be connected with a notebook computer, a temperature and humidity interface 13 is connected with a field temperature and humidity sensor, a noise interface 14, an acoustic sensor, a GPS interface 15, a GPS receiver, calibration time, a LAN interface 16 and the Internet for software upgrading remote debugging.
As shown in fig. 5, the power supply module provides power for the integrated inspection device for field safety of the charging pile, the voltage control module provides various voltage signals (such as a part control signal of the BMS, a pull-up voltage of U2) for testing, and the analog voltage output interface 29 provides a voltage for a meter of the charged electric vehicle. The first power supply output interface 21 is connected with the first power supply input interface 21 ', the second power supply output interface 22 is connected with the second power supply input interface 22', the third power supply output interface 23 is connected with the third power supply input interface 23 ', the fourth power supply output interface 24 is connected with the fourth power supply input interface 24', and the communication interface I25 is connected with the communication interface II 26. The voltage control module is also provided with an LED nixie tube 27. The voltage output module is provided with a work indicator light 28.
Safety inspection module, BMS analogue means, oscillography module integration satisfy portable requirement in same toolbox, connect notebook computer during the use, can realize the field data display.
The safety detection module completes the safety test of the insulation resistance; the functions of collecting the environmental temperature and humidity measurement and temperature rise of each key part of the charging pile are completed; the function of collecting the field noise is completed; the problem of generating poisonous and harmful gas during charging is solved.
The main control computer is provided with an oscillography module, a report can be generated after the test is finished, and the test items comprise a connection confirmation test, a charging preparation ready test, a starting and charging stage test, a normal charging end test, a charging connection control time sequence test, a CC disconnection test, a CP grounding test, a protection grounding conductor continuity loss test, an output overcurrent test, a disconnecting switch S2 test and a CP loop voltage limit test.
As shown in FIG. 6, the electric vehicle conduction charging interoperability of GB/T34657.1-2017 is tested, a report can be generated after the test is completed, and the test items are shown in Table 1.
TABLE 1 electric vehicle conduction charging interoperability test item Table
| Serial number | Test items | Content of test |
| 1 | A1.1001 or I1.1001 | |
| 2 | A1.3001 or I1.3001 | Charge ready test |
| 3 | A1.4001 or I1.4001 | Start-up and charge phase testing |
| 4 | A1.5001 or I1.5001 | End of |
| 5 | A1.6001 or I1.6001 | Charging connection control timing test |
| 6 | A1.3501 or I1.3501 | |
| 7 | A1.3502 or I1.3502 | |
| 8 | A1.3503 or I1.3503 | CP ground test |
| 9 | A1.4501 or I1.4501 | Protection ground conductor |
| 10 | A1.4502 or I1.4502 | Output over-current test |
| 11 | A1.4503 or I1.4503 | Disconnect |
| 12 | A1.6002 or I1.6002 | CP Loop Voltage Limit test |
As shown in FIG. 7, after the test is completed, voltage waveforms of charging voltage, charging current and various control signals can be generated, data is visual, and inspection personnel can conveniently find problems.
Fig. 7 is a case of a test waveform, and other various BMS control voltages can be also tested through internal switching. Charging voltage and charging current charging vehicle voltage and current are different (generally 200V-750V, 5A-120A).
The CP voltage, the AC control signal, is 5.2V-6.8V during the handshake phase, the PWM signal 970-1030Hz is outputted in normal operation, such as the dense rectangular wave in the figure, and the charging can be started only when the waveform is normal. If the direct current is changed into CC1, the direct current control signal is 5.2V-6.8V in the handshake stage, and the normal work is 3.2V-4.8V.
It should be noted that the oscillography module records, stores and receives various signal data, and then displays waveforms on the notebook through software, the RS232 interface speed is slow, the software processing also has a process, and the displayed waveforms have a certain delay. If the real-time display is needed, the oscilloscope can be connected for real-time viewing.
The field safety comprehensive inspection device for the charging pile has the simulation function of solving the starting voltage of the charging pile; the simulation function of the solution voltage U2 is realized; two test tests of a voltage type and a current type are solved; the problems of analyzing the working state of the charging pile and diagnosing abnormal faults are solved; realizing calculation and printing of an original report; the testing method solves the problem of electric automobile conductive charging interoperability. Has wide application space.
The field safety comprehensive inspection device for the charging pile is an application research of a metering detection and evaluation system of a new energy automobile charging system in the construction of a smart city in a science and technology plan project 2019MK151 of the State market supervision and administration Bureau. The test result of the device is used as the detection basis of the related safety content of 5 local standards, such as a local standard residential district parking place (garage) new energy electric vehicle charging system installation and acceptance standard of a certain city, a commercial parking lot new energy electric vehicle charging system installation and acceptance standard, a new energy electric vehicle charging system safety technical standard, a new energy electric vehicle charging system energy-saving technical standard, a new energy electric vehicle charging system cloud information service standard and the like.
The field safety comprehensive inspection device for the charging pile provides a practice case for a smart city to support a metering technology, promotes the fact that the research result of the whole project can be really adopted and applied in the region from a technical level, and has the possibility of being popularized nationwide.
It should be understood, however, that the description herein of specific embodiments is not intended to limit the invention to the particular forms disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the invention as defined by the appended claims.
Claims (10)
1. A comprehensive field safety inspection device for charging piles is used for detecting the field safety problem of a load device connected with a direct current charging pile, and is characterized by comprising a safety detection module, a BMS simulation device, an oscillography module and a main control computer which are integrated in the same tool box;
the safety detection module is used for detecting the temperature rise condition, the insulation condition, the noise magnitude and whether harmful gas exceeds the standard or not in the charging process of the direct current charging pile;
the BMS simulation device is internally provided with a battery voltage simulation circuit, has a simulation function of the starting voltage of the direct current charging pile, and is used for detecting whether the direct current charging pile has a safety judgment function when the voltage of the load equipment is abnormal;
the load equipment is connected with the BMS simulation device through the power loop, and the BMS simulation device is connected with the direct current charging pile through the power loop;
the oscillography module is respectively connected with the direct current charging pile, the BMS simulation device and the load equipment through sampling lines;
and the master control machine is respectively connected with the safety detection module, the BMS simulation device, the oscillography module and the load equipment through communication wires.
2. The comprehensive inspection device for field safety of charging piles according to claim 1, wherein the safety detection module comprises a harmful gas sensor, a noise sensor, a temperature and humidity detection probe, a metal thermocouple temperature surface patch probe and an analog insulation resistance detection circuit.
3. The comprehensive inspection device for the field safety of the charging piles according to claim 2, wherein the harmful gas sensor is an S-M4 intelligent gas sensor, and the output end of the S-M4 intelligent gas sensor is connected with a safety detection module;
the S-M4 intelligent gas sensor is provided with a special insulating hose, one end of the special insulating hose is connected with a special interface of the safety detection module, and the other end of the special insulating hose is moved to a suspicious position of the direct current charging pile.
4. The field safety comprehensive inspection device for the charging piles according to claim 2, wherein the noise sensor is provided with an analog quantity noise transmitter which outputs 4-20mA and has a measuring range of 30dB-130dB, and the output end of the noise sensor is connected with the safety detection module.
5. The comprehensive inspection device for field safety of charging piles according to claim 2, wherein the temperature and humidity detection probe is used for collecting ambient temperature and humidity and temperature rise of each key component of the direct current charging pile, the temperature and humidity detection probe is internally provided with a conversion circuit, and the probe adopts a high-precision digital sensor probe.
6. The comprehensive inspection device for field safety of charging piles according to claim 2, wherein the metal thermocouple surface-temperature patch probe is provided with two sets of temperature acquisition devices, one set is used for acquiring the ambient temperature, and the other set is used for acquiring the surface temperature of the pile body of the direct-current charging pile.
7. The comprehensive inspection device for field safety of charging piles according to claim 2, wherein the insulation resistance simulation detection circuit has 8 insulation resistances for simulating that insulation of the electric vehicle is qualified and that insulation of the electric vehicle is unqualified, and testing whether safety protection of the charging pile is started when insulation of the electric vehicle is unqualified.
8. The comprehensive inspection device for field safety of the charging piles according to claim 1, wherein the battery voltage simulation circuit is provided with a detection point CC1 and a detection point CC2, the detection point CC1 is used for detecting whether a R4 of the electric vehicle to be charged is normal, and the detection point CC2 is used for detecting whether a pull-up voltage U2 of the electric vehicle to be charged is normal;
r4 is connected with a function of confirming resistance simulation, the resistance adjusting range is 400-2500 omega, the adjusting step is 1 omega, the resistance value can be manually set and adjusted according to the requirement or automatically adjusted through integrated software, and the power supply output is closed when the resistance value is detected to be abnormal;
the U2 voltage value may be adjusted manually as desired or automatically by integrated software.
9. The comprehensive field safety inspection device for the charging piles according to claim 1, wherein the main control computer is provided with an oscillography module, a report can be generated after the test is completed, and the test items comprise a connection confirmation test, a charging readiness test, a starting and charging stage test, a normal charging ending test, a charging connection control timing sequence test, a CC disconnection test, a CP grounding test, a protection grounding conductor continuity loss test, an output overcurrent test, a disconnection switch S2 test and a CP loop voltage limit test.
10. The comprehensive inspection device for field safety of the charging piles according to claim 1, wherein the tool box is provided with an instrument panel, and the instrument panel is provided with a charging pile connecting gun seat interface, a load end connecting gun seat interface, a charging current measuring interface, a charging pile gun head external banana-leading socket, a pulse interface, a toxic and harmful sensor interface, a surface temperature interface, an RS232 communication interface, a temperature and humidity interface, a noise interface, a GPS interface and an LAN interface.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117269656A (en) * | 2023-11-20 | 2023-12-22 | 深圳市北测检测技术有限公司 | New energy automobile direct current fills electric pile test system |
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| CN210181189U (en) * | 2019-04-12 | 2020-03-24 | 深圳市赛特新能科技有限公司 | Fill electric pile power module automatic testing arrangement |
| CN111427320A (en) * | 2020-04-03 | 2020-07-17 | 无锡超维智能科技有限公司 | Intelligent industrial robot distributed unified scheduling management platform |
| CN112269079A (en) * | 2020-10-13 | 2021-01-26 | 深圳市安顺检测服务有限公司 | Portable integrated charging pile detection operation platform |
| CN112305346A (en) * | 2020-10-20 | 2021-02-02 | 保定新云达电力设备有限责任公司 | Portable alternating-current charging pile field detection device and detection method thereof |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN117269656A (en) * | 2023-11-20 | 2023-12-22 | 深圳市北测检测技术有限公司 | New energy automobile direct current fills electric pile test system |
| CN117269656B (en) * | 2023-11-20 | 2024-01-26 | 深圳市北测检测技术有限公司 | New energy automobile direct current fills electric pile test system |
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Application publication date: 20211112 |