CN109884431B - Cordwood system electric automobile direct current facility detection device that charges - Google Patents
Cordwood system electric automobile direct current facility detection device that charges Download PDFInfo
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- CN109884431B CN109884431B CN201910175585.3A CN201910175585A CN109884431B CN 109884431 B CN109884431 B CN 109884431B CN 201910175585 A CN201910175585 A CN 201910175585A CN 109884431 B CN109884431 B CN 109884431B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R1/00—Details of instruments or arrangements of the types included in groups G01R5/00 - G01R13/00 and G01R31/00
- G01R1/02—General constructional details
- G01R1/04—Housings; Supporting members; Arrangements of terminals
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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- Charge And Discharge Circuits For Batteries Or The Like (AREA)
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Abstract
The invention discloses a building block type detection device for a direct current charging facility of an electric automobile. The cordwood system electric automobile direct current facility detection device that charges includes: at least two concatenation modules, every concatenation module has first grafting interface (51) and second grafting interface (52), and first grafting interface (51) of a concatenation module are suitable for and insert in the second grafting interface (52) of another concatenation module with the mode that can repeat the dismouting, form the circuit connection between the concatenation module, wherein, connect through bus (57) electricity each other between concatenation module's own first grafting interface (51) and the second grafting interface (52), concatenation module's own internal circuit with bus (57) electricity is connected. The invention solves the problem of inconvenient field installation by a building block type assembling mode and a structure of bus connection of each module, and makes the field convenient detection of the charging pile/machine possible.
Description
Technical Field
The invention relates to the technical field of electric automobile charging, in particular to a building block type detection device for a direct current charging facility of an electric automobile.
Background
With the national interest in electric vehicle policy, the demand for electric vehicle auxiliary equipment is increasing dramatically. The quality of an electric vehicle charging pile/machine, which is a key device for charging electric vehicles, directly influences the popularization speed of the electric vehicles and influences the realization of the strategic development of the national electric vehicles. Therefore, the detection of the charging/charging point of the electric vehicle must be performed carefully. However, the method is limited by the complexity of the environment where the electric automobile charging pile is located, at present, the charging pile/machine detection is mainly performed in a laboratory, and the field detection on the charging pile cannot be conveniently performed.
The prior art is a container type detection device, which is too large in size, too complex in wiring and seriously unsuitable for field detection of charging piles/machines.
The electric automobile direct current charger detection system of prior art, its degree of dependence to site environment is still very high (to power supply's demand, to the demand of test system wiring, it is bulky, transportation and installation inconvenience etc.), still can not realize the on-the-spot convenient, efficient of electric automobile and detect. Furthermore, the detection system has many connections between modules, and generally, more than 20 cables are connected between modules and power supply of the modules. This situation seriously increases the difficulty of on-site detection, and is not favorable for the development of on-site detection.
It is therefore desirable to have a solution that overcomes or at least alleviates at least one of the above-mentioned drawbacks of the prior art.
Disclosure of Invention
The invention aims to provide a building block type detection device for a direct current charging facility of an electric automobile, which overcomes or at least alleviates at least one of the defects in the prior art.
In order to achieve the above object, the present invention provides a building block type dc charging facility detection device for an electric vehicle, comprising: at least two concatenation modules, every concatenation module have first grafting interface and second grafting interface, and the first grafting interface of a concatenation module is suitable for and inserts in the second grafting interface of another concatenation module with the mode that can repeat the dismouting, forms the circuit connection between the concatenation module, wherein, connect through bus electricity each other between the first grafting interface of concatenation module self and the second grafting interface, the internal circuit of concatenation module self with bus electricity is connected.
Preferably, the number of the first plug interfaces and the second plug interfaces arranged on each splicing module is one, the first plug interfaces are arranged on the upper side of the splicing module, and the second plug interfaces are arranged at the corresponding positions on the lower side of the splicing module.
Preferably, the shell of first grafting interface and second grafting interface is located the outline of concatenation module casing, first grafting interface and second grafting interface are provided with heavy-duty terminal, one in first grafting interface and the second grafting interface is the activity grafting interface, and another is fixed grafting interface, the heavy-duty terminal and the drive handle transmission of activity grafting interface are connected drive handle's drive is down, withdraws the position and stretches out the hookup location between the motion withdraw the position, heavy-duty terminal is located within the outline of concatenation module casing.
The problem of cumbersome wiring of the detection system is solved by using a heavy-duty connector instead of the conventional flexible wire connection.
Preferably, the load module comprises a first load module and a second load module.
Preferably, the at least two mosaic modules comprise: a detection system host module, a load module and a power module which can be spliced with each other,
the detection system host module controls the load module and the power supply module to realize detection of the direct current charging facility of the electric automobile;
the load module is internally provided with a resistor matrix which is used as a power absorption unit, and the internal resistor matrix is switched under the control of the detection system host module to realize the switching of loads with different resistance values;
the power module provides power for the detection system host module and the load module.
Preferably, the detection system host module comprises a direct current power acquisition unit, a channel gating unit, an oscilloscope unit, a BMS simulator and a control unit,
the direct current electric energy acquisition unit acquires direct current voltage, direct current and direct current electric energy signals in the detection process and transmits the acquisition result to the control unit through the serial bus,
the channel gating unit establishes a physical electrical connection channel between a signal to be monitored and the oscilloscope unit through the analog switch, wherein the signal to be monitored comprises direct current voltage, direct current, CC1 voltage, CC2 voltage, auxiliary power supply voltage and auxiliary power supply current;
the oscilloscope unit acquires and processes signals of each channel in the detection process in real time, and uploads the result to the control unit and/or the network router unit;
the BMS simulator simulates a battery and a battery management system in the electric automobile in the detection process and communicates with a direct current charging facility.
Preferably, the detection system host module comprises a first charging interface used for being connected with a direct-current charging facility and a second charging interface used for being connected with an electric automobile, an interface simulation unit is arranged between the first charging interface and the second charging interface and is controlled by the control unit, and in the detection process, states of switching, change and the like of resistors in the direct-current charging interface of the electric automobile are simulated. Therefore, in the detection process, the detection system host module is respectively connected with the charger and the electric automobile through the first charging interface and the second charging interface so as to introduce the detected signal, and the detection device does not need an external connection wire.
Preferably, the first charging interface is in the form of a charging gun seat and is adapted to be matched with a charging gun head of a direct current charging facility; the second charging interface is in the form of a charging gun head and is suitable for being matched with a charging gun seat of the electric automobile.
Preferably, the power module includes a battery, a battery charging module, a first switch array, AC/DC, a second switch array and DC/DC,
the battery charging module charges a battery and provides electric energy for the host module and the load module of the detection system, and the AC/DC is connected with a commercial power or an alternating current charging device through a second switch array; the DC/DC is connected with a direct current charging facility; the outputs of the AC/DC and DC/DC are connected to a battery charging module through a first switch array to charge the battery.
The power supply for the detection system is always supplied by the power module. The power supply device can realize charging and supply power to the host module and the load module of the detection system. In the absence of external power, power is supplied by the battery.
Preferably, the first plug interface and/or the second plug interface protrudes from the splicing module housing and is used as a guiding and positioning structure for splicing the splicing module.
The invention solves the problem of inconvenient field installation by a building block type assembling mode, and makes the field convenient detection of the charging pile/machine possible. The circuits of the individual mosaic modules are connected to one another by means of a bus, so that the order of connection between the modules is not particularly critical. The convenience of field installation is greatly improved. In addition, the circuit connection among the splicing modules is completely connected through the bus, and external connection wires are not needed.
Drawings
Fig. 1 is a schematic circuit diagram of a detection device for an electric vehicle dc charging facility according to an embodiment of the present invention.
FIG. 2 is a circuit schematic of a host module of the detection system.
Fig. 3 is a circuit schematic of a power supply module.
Fig. 4 is a schematic diagram of one structural form of the building block type detection device for the direct current charging facility of the electric automobile in a plug-in assembling state.
Fig. 5 is a schematic view of one form of construction of a single mosaic module.
Fig. 6 is a schematic diagram of a second structure form of the building block type electric vehicle direct current charging facility detection device in a plug-in assembling state.
Fig. 7 is a schematic view of a second construction of a single mosaic module.
Fig. 8 is a schematic diagram of the internal circuitry of the mosaic module.
Fig. 9 is a schematic top view of a splice module.
Fig. 10 is a schematic view of a movable heavy-duty terminal.
Reference numerals:
| 1 | host module of |
41 | Battery with a |
| 2 | |
42 | |
| 3 | |
43 | |
| 4 | |
44 | AC/ |
| 5 | Plug-in |
45 | |
| 11 | Direct current electric |
46 | DC/ |
| 12 | |
51 | First plug-in connectionInterface |
| 13 | |
52 | |
| 14 | |
53 | Heavy- |
| 15 | |
54 | |
| 16 | |
55 | |
| 17 | |
56 | Conducting |
| 18 | First charging interface | 57 | Bus line |
| 19 | |
571 | Power line |
| 20 | Signal input/ |
572 | Signal line |
Detailed Description
In the drawings, the same or similar reference numerals are used to denote the same or similar elements or elements having the same or similar functions. Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.
In the description of the present invention, the terms "central", "longitudinal", "lateral", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and therefore, should not be construed as limiting the scope of the present invention.
The invention solves the problem of inconvenient field installation by a building block type assembling mode, and makes the field convenient detection of the charging pile/machine possible. Aiming at the problems of the current electric vehicle charger/pile detection system, the invention solves the problem of detecting the system power supply by equipping the power supply module, and solves the problem of complex wiring of the detection system by using a heavy-load connector to replace the conventional flexible wire connection mode.
Referring to fig. 1 to 10, a modular dc charging facility detection apparatus for an electric vehicle according to an embodiment of the present invention includes: the splicing module comprises at least two splicing modules, each splicing module is provided with a first plugging interface 51 and a second plugging interface 52, and the first plugging interface 51 of one splicing module is suitable for being inserted into the second plugging interface 52 of the other splicing module in a repeated dismounting mode to form circuit connection between the splicing modules.
The invention solves the problem of inconvenient field installation by a building block type assembling mode, and makes the field convenient detection of the charging pile/machine possible. It is particularly advantageous that there are no particular requirements on the order of connection between the modules. This is achieved by the "bus connection" of the present invention. See below for details.
The number, shape, structure and the like of the splicing modules can be set as required. Advantageously, the volume and weight of each splice module are relatively close.
Referring to fig. 1, the at least two mosaic modules comprise: the system comprises a detection system host module 1, a load module and a power module 3 which can be spliced with each other. The detection system host module 1 controls the load module and the power module 4 to realize detection of the direct current charging facility of the electric automobile. And a resistor matrix is arranged in the load module and used as a power absorption unit, and the internal resistor matrix is switched under the control of the detection system host module 1, so that the switching of loads with different resistance values is realized. The power module 4 provides power for the detection system host module 1 and the load module.
The whole detection device is divided into a detection system host module 1, a load module and a power module 3, on one hand, each part is convenient to transport and carry, and parts with the same functions are integrated together and are produced and debugged.
Advantageously, the load module comprises a first load module 2 and a second load module 3, so that the load module with a larger volume and weight is divided into two parts, so that the volume and weight of the divided first load module 2 and second load module 3 are smaller and close to the volume and weight of the power module.
Referring to fig. 8, the first plug interface 51 and the second plug interface 52 of the splicing module are electrically connected to each other through a bus 57, and the internal circuit of the splicing module is electrically connected to the bus 57. Thus, the plurality of bus lines 57 are combined to form a complete bus line, and the circuits of the respective modules are connected to each other through the bus line, so that the connection sequence between the modules has no special requirement. The convenience of field installation is greatly improved. For example, in a top-to-bottom stack design, the various modules are aligned and stacked directly in the order of handling, the assembly of the parts is complete, and inspection can then be performed.
In order to reduce the complexity of field test, the invention adopts an internal bus mode to realize all the connecting wires required during detection in the system. And the test system is realized in a bus mode, so that the number of loads (within a power allowable range) in the test system can be increased or decreased in an unlimited manner in a superposition mode, and the requirements of different test powers are met.
In one embodiment, as shown in fig. 9, each splicing module is provided with one first plugging interface 51 and one second plugging interface 52, the first plugging interface 51 is arranged at the upper side of the splicing module, and the second plugging interface 52 is arranged at the corresponding position of the lower side of the splicing module.
Referring to fig. 7 to 10, the housings of the first plug interface 51 and the second plug interface 52 are located within the outer contour of the splice module housing. This is advantageous for increasing the strength requirements for the plug interface. The plug-in connector is prevented from being broken in the transportation process or the installation process.
Heavy-duty terminals 53 are arranged at the first plug interface 51 and the second plug interface 52. The problem of cumbersome wiring of the detection system is solved by using a heavy-duty connector instead of the conventional flexible wire connection.
Furthermore, the conventional flexible wire connection between the modules is replaced by a building block type assembly mode and a mode of connecting a heavy-load terminal (such as an industrial heavy-load connector), so that the assembly of the system module becomes convenient and reliable, the difficulty of field test is reduced, and the reliability of detection is improved. The cords in a conventional test system are all implemented inside the module. The modules are connected with each other through the heavy-duty connector in an inserted mode, and electric connection is completed. In order to ensure that the modules are not limited in sequence and have sufficient flexibility when being assembled and connected in a building block mode, the invention uses a bus mode to connect all the modules in the detection system, so that the sequence and the position of the modules in the system can be changed at will without influencing the stability of the modules.
In one embodiment, one of the first plug interface 51 and the second plug interface 52 is a movable plug interface, and the other is a fixed plug interface, and the heavy-duty terminal 53 of the movable plug interface is in transmission connection with a driving handle 54, and moves between a retracted position and an extended connection position under the driving of the driving handle 54, and in the retracted position, the heavy-duty terminal 53 is located within the outer contour of the splice module housing. In cooperation with the driving handle 54, an elastic locking structure may be further provided to lock the heavy duty terminal 53 in the retracted position and/or the extended connection position. The resilient capture structure may take any of the prior art configurations.
To facilitate positioning during installation, a stop hole 55 is provided at the top of each splice module. Correspondingly, the bottom is provided with a corresponding limiting bulge. It will be appreciated that it is also possible to provide the stop protrusion at the top and the corresponding stop hole at the bottom.
In one embodiment, the first plug interface 51 and/or the second plug interface 52 preferably protrude from the splice module housing and serve as a guiding and positioning structure.
The positioning groove is used for guiding and positioning the modules, so that the modules can be accurately and easily positioned during assembly. And the detection system modules are firmly connected together by being provided with spring buckles.
Referring to fig. 2, the detection system host module 1 includes a direct current power collecting unit 11, a channel gating unit 12, an oscilloscope unit 13, a BMS simulator 14, a control unit 15, and a network router unit 16.
The direct current electric energy acquisition unit 11 acquires direct current voltage, direct current and direct current electric energy signals in the detection process, transmits the acquisition result to the control unit 15 through a serial bus,
the channel gating unit 12 establishes a physical electrical connection channel between a signal to be monitored and the oscilloscope unit 13 through an analog switch, wherein the signal to be monitored comprises direct current voltage, direct current, CC1 voltage, CC2 voltage, auxiliary power supply voltage and auxiliary power supply current;
the oscilloscope unit 13 collects and processes signals of each channel in the detection process in real time, and uploads the results to the control unit 15 and/or the network router unit;
the BMS simulator 14 simulates the battery and the battery management system inside the electric vehicle during the test process to communicate with the dc charging facility. The BMS simulator 14 is likewise controlled by the control unit 15.
Preferably, the detection system host module 1 includes a first charging interface 18 for connecting with a dc charging facility, and a second charging interface 19 for connecting with an electric vehicle, an interface simulation unit 17 is provided between the first charging interface 18 and the second charging interface 19, the interface simulation unit 17 is controlled by the control unit 15, and in the detection process, states of switching, change and the like of a resistor in the dc charging interface of the electric vehicle are simulated.
More specifically, the first charging interface 18 is in the form of a charging gun holder adapted to cooperate with a charging gun head of a dc charging installation; the second charging interface 19 is in the form of a charging gun head and is adapted to cooperate with a charging gun base of an electric vehicle. Thus, the charge detection connection is further simplified.
The network router unit 16 is a channel for network information interaction between the respective functional modules. The network router unit 16 is responsible for forwarding the corresponding network data to the specified destination address.
Referring to fig. 3, the power module 4 includes a battery 41, a battery charging module 42, a first switch array 43, an AC/DC44, a second switch array 45, and a DC/DC 46.
The battery charging module 46 charges the battery 41 and provides electric energy for the detection system host module 1 and the load module, and the AC/DC44 is connected with a commercial power or an alternating current charging device through a second switch array 45; the DC/DC46 is connected with a direct current charging facility; the outputs of the AC/DC44 and DC/DC46 are connected to the battery charging module 42 through the first switch array 43 to charge the battery 41.
The power supply for the detection system is always supplied by the power module. The power supply to the detection system host module 1 and the load module can be realized while charging. In the absence of external power, power is supplied by the battery 41.
In the invention, the electric energy required by the operation of the detection system is provided by the battery module, and the detection system can normally work when the electric quantity in the battery is sufficient. When the internal electric energy of the battery is insufficient, the battery is charged in the following way, and the required electric energy is provided for the test system. The available power supply is divided into commercial power, an alternating current charging pile (near the detected charger) and a detected direct current charger.
The detection site is limited by the test environment, and under most conditions, the alternating current commercial power cannot be conveniently obtained to serve as the power supply of the detection facility. In the invention, methods as much as possible are provided to provide electric energy for detection facilities, so that the detection facilities can meet the requirements of field detection and complete detection work.
The external alternating current commercial power can be used for charging the power supply module and supplying power to the detection device, and the external alternating current charging pile can also be used for charging the power supply module and supplying power to the monitoring device.
The detection system can complete the detection of interoperability, electrical property and communication consistency of the direct current charging facility of the electric automobile, and can realize the monitoring and fault analysis of the direct current charging process of the electric automobile.
Finally, it should be pointed out that: the above examples are only for illustrating the technical solutions of the present invention, and are not limited thereto. Those of ordinary skill in the art will understand that: modifications can be made to the technical solutions described in the foregoing embodiments, or some technical features may be equivalently replaced; such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (9)
1. The utility model provides a cordwood system's electric automobile direct current facility detection device that charges which characterized in that includes: at least two splicing modules, each splicing module is provided with a first plugging interface (51) and a second plugging interface (52), the first plugging interface (51) of one splicing module is suitable for being inserted into the second plugging interface (52) of the other splicing module in a repeated dismounting mode to form circuit connection between the splicing modules, wherein the first plugging interface (51) and the second plugging interface (52) of the splicing module are electrically connected with each other through a bus (57), and the internal circuit of the splicing module is electrically connected with the bus (57),
the at least two splice modules include: a detection system host module (1), a load module and a power module (3) which can be spliced with each other,
the detection system host module (1) controls the load module and the power supply module (4) to realize detection of the direct current charging facility of the electric automobile; the detection system host module (1) comprises a first charging interface (18) connected with a direct-current charging facility and a second charging interface (19) connected with an electric automobile, an interface simulation unit (17) is arranged between the first charging interface (18) and the second charging interface (19), the interface simulation unit (17) is controlled by a control unit (15), and switching and changing states of resistors in the direct-current charging interface of the electric automobile are simulated in the detection process.
2. The building block type detection device for the direct current charging facility of the electric vehicle as claimed in claim 1, wherein the number of the first plug interface (51) and the second plug interface (52) provided for each splicing module is one, the first plug interface (51) is provided at the upper side of the splicing module, and the second plug interface (52) is provided at the corresponding position at the lower side of the splicing module.
3. The modular direct-current charging facility detection device for the electric vehicle according to claim 2, wherein the housings of the first plug interface (51) and the second plug interface (52) are located within an outer contour of the splicing module housing, the first plug interface (51) and the second plug interface (52) are provided with heavy-duty terminals (53), one of the first plug interface (51) and the second plug interface (52) is a movable plug interface, the other one is a fixed plug interface, the heavy-duty terminals (53) of the movable plug interface are in transmission connection with a driving handle (54), and are driven by the driving handle (54) to move between a retracted position and an extended connection position, and in the retracted position, the heavy-duty terminals (53) are located within the outer contour of the splicing module housing.
4. The modular dc charging facility detection device of claim 1, wherein the load modules comprise a first load module (2) and a second load module (3).
5. The modular DC charging facility detection device of any one of claims 1-4,
a resistor matrix is arranged in the load module and used as a power absorption unit, and the internal resistor matrix is switched under the control of the detection system host module (1) to realize the switching of loads with different resistance values;
and the power supply module (4) provides power for the detection system host module (1) and the load module.
6. The modular DC charging facility testing apparatus for electric vehicles of claim 5,
the detection system host module (1) comprises a direct current electric energy acquisition unit (11), a channel gating unit (12), an oscilloscope unit (13), a BMS simulator (14) and a control unit (15),
the direct current electric energy acquisition unit (11) acquires direct current voltage, direct current and direct current electric energy signals in the detection process and transmits the acquisition result to the control unit (15) through a serial bus,
the channel gating unit (12) establishes a physical electrical connection channel between a signal to be monitored and the oscilloscope unit (13) through an analog switch, wherein the signal to be monitored comprises direct current voltage, direct current, CC1 voltage, CC2 voltage, auxiliary power supply voltage and auxiliary power supply current;
the oscilloscope unit (13) collects and processes signals of each channel in the detection process in real time, and uploads the results to the control unit (15) and/or the network router unit;
the BMS simulator (14) simulates a battery and a battery management system inside the electric vehicle during the detection process and communicates with the direct current charging facility.
7. The modular dc charging facility testing apparatus of claim 6, wherein the first charging interface (18) is in the form of a charging gun seat adapted to cooperate with a charging gun head of a dc charging facility; the second charging interface (19) is in the form of a charging gun head and is suitable for being matched with a charging gun seat of an electric automobile.
8. The modular DC charging facility detection device of claim 4, wherein the power module (4) comprises a battery (41), a battery charging module (42), a first switch array (43), an AC/DC (44), a second switch array (45), and a DC/DC (46),
the battery charging module (46) charges a battery (41) and provides electric energy for the detection system host module (1) and the load module, and the AC/DC (44) is connected with a commercial power or alternating current charging device through a second switch array (45); the DC/DC (46) is connected to a direct current charging facility; the outputs of the AC/DC (44) and DC/DC (46) are connected to a battery charging module (42) via a first switch array (43) to charge a battery (41).
9. The modular DC charging facility detection device of any one of claims 1-3, wherein the first plug interface (51) and/or the second plug interface (52) protrudes from the splicing module housing and is used as a guiding and positioning structure for splicing the splicing module.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910175585.3A CN109884431B (en) | 2019-03-08 | 2019-03-08 | Cordwood system electric automobile direct current facility detection device that charges |
| PCT/CN2019/087475 WO2020181656A1 (en) | 2019-03-08 | 2019-05-17 | Building-block type electric automobile direct-current charging facility detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910175585.3A CN109884431B (en) | 2019-03-08 | 2019-03-08 | Cordwood system electric automobile direct current facility detection device that charges |
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| Publication Number | Publication Date |
|---|---|
| CN109884431A CN109884431A (en) | 2019-06-14 |
| CN109884431B true CN109884431B (en) | 2020-07-10 |
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| CN201910175585.3A Active CN109884431B (en) | 2019-03-08 | 2019-03-08 | Cordwood system electric automobile direct current facility detection device that charges |
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| WO (1) | WO2020181656A1 (en) |
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|---|---|---|---|---|
| CN109747468A (en) * | 2019-03-08 | 2019-05-14 | 北京博电新力电气股份有限公司 | A kind of electric car DC charging detection device |
| CN112269040A (en) * | 2020-09-29 | 2021-01-26 | 国网浙江省电力有限公司营销服务中心 | Electric energy verification method for off-board charger |
| CN112269039A (en) * | 2020-09-29 | 2021-01-26 | 国网浙江省电力有限公司营销服务中心 | AC charging pile virtual load electric energy verification method |
| CN112731251A (en) * | 2020-12-31 | 2021-04-30 | 国网浙江省电力有限公司营销服务中心 | Virtual load test system and method for off-board charger and gun holder |
| CN113125889B (en) * | 2021-04-21 | 2023-06-30 | 阳光电源股份有限公司 | Charging pile and testing device, system and method thereof |
| CN114863664A (en) * | 2022-04-29 | 2022-08-05 | 浙江卡巴尔电气有限公司 | Wireless control device for shield machine |
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| CN109884431A (en) | 2019-06-14 |
| WO2020181656A1 (en) | 2020-09-17 |
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