Charging pile and charging terminal test system

Abstract

The invention provides a test system for a charging pile and a charging terminal. The system provided by the invention comprises a remote information control unit, a maintenance control unit, a contactor control unit, a charging control unit, a contactor and a test unit, and the test unit further comprises an indication subunit; the test unit is used for sending a test signal; the maintenance control unit is used for enabling the communication interface to obtain a startup signal after receiving the test signal; the remote information control unit is used for receiving the test signal and transmitting the test signal to the charging control unit; the charging control unit is used for enabling a charging gun output signal port to obtain a charging signal after receiving the test signal; the contactor control unit is used for enabling the contactor control interface to obtain a contactor closing signal after receiving the test signal, so that the corresponding contactor is closed; and the indication subunit is used for displaying the state of the contactor. According to the system, the testing efficiency of the charging pile and the charging terminal is improved.

Description

Technical Field

[0001] The present invention relates to the field of charging technology, and in particular to a testing system for a charging stack and a charging terminal. Background Art

[0002] As competition in the charging pile market continues to intensify, charging piles and charging terminals (charging piles) need to be constantly upgraded and optimized to meet consumer demand. The software upgrade of charging piles and charging terminals is a core upgrade. After the software upgrade, testing and verification are required. Currently, testing and verification usually need to be performed on the corresponding charging piles and charging terminals. However, the volume and mass of high-power charging piles and charging terminals are large, and the separation of the R&D centers and production centers of many charging pile companies makes the testing of charging piles and charging terminals extremely inconvenient, which in turn leads to low testing efficiency of charging piles and charging terminals. Summary of the invention

[0003] The object of the present invention is to provide a test system for a charging stack and a charging terminal, so as to solve the technical problem of low test efficiency of the charging stack and the charging terminal in the prior art.

[0004] The technical solution of the present invention is as follows: a test system for a charging stack and a charging terminal is provided, comprising a telematics control unit, a maintenance control unit, a contactor control unit, a charging control unit, a contactor and a test unit, wherein the test unit further comprises an indication subunit;

[0005] The test unit is used to send a test signal;

[0006] The maintenance control unit is used to enable the communication interface of the maintenance control unit to obtain a power-on signal after receiving the test signal, so as to simulate the power-on of the charging module of the charging stack;

[0007] The telematics control unit is configured to receive the test signal and transmit the test signal to the charging control unit;

[0008] The charging control unit is used to enable the charging gun output signal port of the charging control unit to obtain a charging signal after receiving the test signal, so as to simulate charging of the charging terminal;

[0009] The contactor control unit is used to enable the contactor control interface of the contactor control unit to obtain a contactor closing signal after receiving the test signal, so as to close the corresponding contactor;

[0010] The indicating subunit is used to display the state of the contactor.

[0011] Furthermore, the test system of the charging stack and the charging terminal also includes a disconnecting unit, and the disconnecting unit is used to disconnect the corresponding contactor after receiving a disconnecting signal.

[0012] Furthermore, the test system of the charging stack and the charging terminal also includes a status display unit, the number of the status display units is equal to the number of the contactors, the status display units are connected to the contactors one by one, and the status display units are used to display the status of the contactors.

[0013] Furthermore, the test system of the charging stack and the charging terminal also includes a power supply, and the power supply is used to supply power to the telematics control unit, the maintenance control unit, the contactor control unit and the charging control unit.

[0014] Furthermore, the test unit is deployed on a host computer, the contactor control unit is respectively connected to the remote information control unit and the maintenance control unit, and the remote information control unit is also respectively connected to the maintenance control unit and the charging control unit; the host computer is respectively connected to the remote information control unit, the maintenance control unit, and the contactor control unit.

[0015] Furthermore, the test system of the charging stack and the charging terminal also includes a test cabinet with a receiving space, and the maintenance control units include three, which are respectively a first maintenance control unit, a second maintenance control unit and a third maintenance control unit; the receiving space is used to receive the contactor control unit, the charging control unit, the first maintenance control unit and the second maintenance control unit.

[0016] Further, the contactor control unit, the charging control unit, the first maintenance control unit and the second maintenance control unit are arranged on a first mounting plate of the test cabinet.

[0017] Furthermore, the accommodating space is also used to accommodate the contactor, and the contactor is arranged on the second mounting plate of the test cabinet.

[0018] Furthermore, the accommodation space is also used to accommodate the remote information control unit, the power supply and the third maintenance control unit, and the remote information control unit, the power supply and the third maintenance control unit are arranged on the third mounting plate of the test cabinet.

[0019] Furthermore, the accommodating space is also used to accommodate the disconnecting unit and the status display unit, and the disconnecting unit and the status display unit are arranged on the fourth mounting plate of the test cabinet.

[0020] The beneficial effects of the present invention are as follows: a test signal is sent through the test unit; the maintenance control unit, after receiving the test signal, enables the communication interface of the maintenance control unit to obtain a power-on signal to simulate the power-on of the charging module of the charging pile; the remote information control unit receives the test signal and transmits the test signal to the charging control unit; the charging control unit, after receiving the test signal, enables the charging gun output signal port of the charging control unit to obtain a charging signal to simulate charging of the charging terminal; the contactor control unit, after receiving the test signal, enables the contactor control interface of the contactor control unit to obtain a contactor closing signal to close the corresponding contactor; the indicator subunit displays the status of the contactor; the simulation test of the charging pile and the charging terminal can be realized, and the test efficiency of the charging pile and the charging terminal can be improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A first structural schematic diagram of a test system for a charging stack and a charging terminal provided in an embodiment of the present invention;

[0022] Figure 2 A second structural schematic diagram of a test system for a charging stack and a charging terminal provided in an embodiment of the present invention;

[0023] Figure 3 A third structural schematic diagram of a test system for a charging stack and a charging terminal provided by an embodiment of the present invention;

[0024] Figure 4 A structural diagram of a test cabinet provided by an embodiment of the present invention;

[0025] Figure 5 A schematic structural diagram of a first mounting plate of a test cabinet provided in an embodiment of the present invention;

[0026] Figure 6 A schematic diagram of the structure of a second mounting plate of a test cabinet provided in an embodiment of the present invention;

[0027] Figure 7 A schematic diagram of the structure of a third mounting plate of a test cabinet provided in an embodiment of the present invention;

[0028] Figure 8 A schematic structural diagram of a fourth mounting plate of a test cabinet provided in an embodiment of the present invention.

[0029] Figure markings: 11-telematic control unit; 12-maintenance control unit; 12A-first maintenance control unit; 12B-second maintenance control unit; 12C-third maintenance control unit; 13-contactor control unit; 14-charging control unit; 15-contactor; 16-test unit; 161-indicator unit; 17-host computer; 18-debugging test board; 19-power supply; 20-status display unit; 21-disconnecting unit; 22-display module; 23-test cabinet; 24-rear door; 25-left mounting plate; 26-left door; 27-contactor mounting plate; 28-right door; 29-display module mounting plate; 30-status display unit mounting plate; 31-disconnecting unit mounting plate; 32-right mounting plate; 33-debugging test board mounting plate; 34-terminal blocks; 35-power indicator light; 36-castors. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the terms used in this way can be interchangeable under appropriate circumstances, so that the embodiments of the present invention described herein can be implemented in an order other than those illustrated or described herein.

[0032] Reference to "embodiments" herein means that a particular feature, structure, or characteristic described in conjunction with the embodiments may be included in at least one embodiment of the present invention. The appearance of the phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. It is explicitly and implicitly understood by those skilled in the art that the embodiments described herein may be combined with other embodiments.

[0033] Figure 1 1 is a first structural diagram of a test system for a charging stack and a charging terminal according to an embodiment of the present invention. It should be noted that if there are substantially the same results, the test system for a charging stack and a charging terminal according to the present invention is not necessarily the same as the test system for a charging stack and a charging terminal according to the present invention. Figure 1 The structure shown is limited. Figure 1As shown, the test system of the charging stack and the charging terminal includes a telematics control unit 11, a maintenance control unit 12, a contactor control unit 13, a charging control unit 14, a contactor 15, and a test unit 16, wherein the test unit 16 also includes an indication subunit 161;

[0034] The test unit 16 is used to send a test signal;

[0035] The maintenance control unit 12 is used to enable the communication interface of the maintenance control unit 12 to obtain a startup signal after receiving the test signal, so as to simulate the startup of the charging module of the charging stack;

[0036] The remote information control unit 11 is used to receive the test signal and transmit the test signal to the charging control unit 14;

[0037] The charging control unit 14 is used to enable the charging gun output signal port of the charging control unit 14 to obtain a charging signal after receiving the test signal, so as to simulate charging of the charging terminal;

[0038] The contactor control unit 13 is used to enable the contactor control interface of the contactor control unit 13 to obtain a contactor closing signal after receiving the test signal, so as to close the corresponding contactor 15;

[0039] The indicating subunit 161 is used to display the state of the contactor 15 .

[0040] In the embodiment of the present invention, the test unit 16 sends a test signal; the maintenance control unit 12, after receiving the test signal, enables the communication interface of the maintenance control unit 12 to obtain a power-on signal to simulate the power-on of the charging module of the charging pile; the remote information control unit 11 receives the test signal and transmits the test signal to the charging control unit 14; the charging control unit 14, after receiving the test signal, enables the charging gun output signal port of the charging control unit 14 to obtain a charging signal to simulate charging of the charging terminal; the contactor control unit 13, after receiving the test signal, enables the contactor control interface of the contactor control unit 13 to obtain a contactor closing signal to close the corresponding contactor 15; the indicating subunit 161 displays the status of the contactor 15; by simulating the power-on of the charging module of the charging pile, simulating the charging of the charging terminal, closing the contactor 15, and displaying the status of the contactor 15, a simulation test of the charging pile and the charging terminal can be implemented, and the test efficiency of the charging pile and the charging terminal can be improved.

[0041] In a specific embodiment, the hardware environment of the charging stack mainly includes a telematics control unit 11 (TCU, Telematics Control Unit), a maintenance control unit 12 (MNU control board), a contactor control unit 13 (RCU control board) and a contactor 15 (power divider contactor). The hardware environment of the charging terminal (which may include an electric vehicle terminal) mainly includes a charging control unit 14 (CCU control board). Since software testing only tests the control function and does not require load testing, the hardware environment of the charging stack and the hardware environment of the charging terminal can be integrated into a test cabinet to achieve software integration testing.

[0042] In some embodiments, the test unit 16 is deployed on a host computer 17, the contactor control unit 13 is respectively connected to the remote information control unit 11 and the maintenance control unit 12, and the remote information control unit 11 is also respectively connected to the maintenance control unit 12 and the charging control unit 14; the host computer 17 is respectively connected to the remote information control unit 11, the maintenance control unit 12, and the contactor control unit 13.

[0043] In a specific embodiment, a second structural diagram of a test system for a charging stack and a charging terminal is shown as follows: Figure 2 As shown, the test unit 16 is deployed on the host computer 17. The host computer 17 communicates with the remote information control unit 11, the maintenance control unit 12, and the contactor control unit 13 through the debugging test board 18 through the network cable connection. At the same time, the remote information control unit 11 can communicate with the charging control unit 14, and the host computer 17 can display the real-time status of the remote information control unit 11, the maintenance control unit 12, the contactor control unit 13, and the charging control unit 14. The software to be tested can be deployed on the charging pile through the host computer 17. After the software is deployed on the charging pile, the test unit 16 sends a test signal to instruct the subunit 161 to display the test status, specifically, the status of the contactor 15.

[0044] In some embodiments, the test system of the charging stack and the charging terminal further includes a disconnecting unit 21, and the disconnecting unit 21 is used to disconnect the corresponding contactor 15 after receiving a disconnecting signal.

[0045] In a specific embodiment, the three-phase AC power is rectified by the charging module and converted into DC power, which can be output to the charging terminal through the matrix power divider copper busbar. A 30kW charging module (i.e., the output power of the charging module is 30KW) is used as an example for power testing, and the corresponding power division strategy table is shown in Table 1.

[0046] Table 1 Power division strategy table

[0047]

[0048] It should be noted that the digital unit in Table 1 is KW; when charging with a 30kW charging module, 30kW is used as a basic power unit for charging. If the strategy for power testing is "equal charging", that is, charging guns 1-12 need to be charged, all contactors 15 are in a closed state before the disconnection unit 21 receives the disconnection signal. If the software of the charging pile and the charging terminal is normal, the indicator subunit 161 of the test unit 16 will show that all contactors 15 are in a closed state (the closed state and the disconnected state can be represented by different graphics, colors or numbers to distinguish, for example, green means closed, and other colors mean disconnected). If the software of the charging pile and the charging terminal is abnormal, the indicator subunit 161 of the test unit 16 may show that some contactors 15 are in a closed state. If the power test strategy is "first come, first served, last come first served", then within the first minute, charging gun No. 1 needs to be charged, and its corresponding contactor 15 is closed. Within the second minute, charging gun No. 2 needs to be charged, and the corresponding contactor 15 also needs to be closed. By analogy, the closing timing of different contactors 15 can be known. If the software of the charging stack and the charging terminal is normal, the indicator subunit 161 of the test unit 16 displays that the state of the contactor 15 corresponds to the closing timing of the contactor 15. For example, within the first minute, the first contactor is closed, and the indicator subunit 161 displays that the state of the contactor 15 is closed; if the software of the charging stack and the charging terminal is abnormal, the indicator subunit 161 of the test unit 16 displays that the state of the contactor 15 does not correspond to the closing timing of the contactor 15.

[0049] In a specific embodiment, a third structural diagram of a test system for a charging stack and a charging terminal is shown in FIG. Figure 3 As shown, the disconnection unit 21 may include a manual disconnection button. When the user presses the manual disconnection button, the manual disconnection button will receive a disconnection signal, and after receiving the disconnection signal, the corresponding contactor 15 will be disconnected. If the software of the charging stack and the charging terminal is normal, the indication subunit 161 of the test unit 16 will display that the corresponding contactor 15 is in a disconnected state.

[0050] In some embodiments, the test system of the charging stack and the charging terminal also includes a status display unit 20, the number of the status display units 20 is equal to the number of the contactors 15, the status display units 20 are connected one by one to the contactors 15, and the status display units 20 are used to display the status of the contactors 15.

[0051] In a specific embodiment, Figure 3As shown, the status display unit 20 can be a contactor pull-in indicator light, which is connected to the contactor 15 to display the status of the contactor 15, and the status of the contactor 15 includes a closed state (conduction) and an open state (non-conduction). The contactor pull-in indicator light can be set on the test cabinet panel. The contactor pull-in indicator light on the test cabinet panel corresponds to the strategy of the power test, indicating that the hardware setting is correct. When the user presses one of the manual disconnect buttons, the corresponding contactor pull-in indicator light on the test cabinet panel will go out. If the indicator light corresponding to the indicator subunit 161 of the test unit 16 does not go out or the software to be tested does not report an error, it means that the software needs to be optimized and upgraded.

[0052] In some embodiments, the test system of the charging stack and the charging terminal further includes a power supply 19 , and the power supply 19 is used to supply power to the telematics control unit 11 , the maintenance control unit 12 , the contactor control unit 13 and the charging control unit 14 .

[0053] In a specific embodiment, Figure 3 As shown, the test system of the charging stack and the charging terminal includes three power supplies 19, namely PSU1, PSU2 and PSU3. The power supply 19 can convert AC power into DC power to power the remote information control unit 11, the maintenance control unit 12, the contactor control unit 13 and the charging control unit 14. The test system of the charging stack and the charging terminal also includes a display module 22, which can include a human-computer interaction interface, which can display the output information of the charging stack, such as current, voltage and other information, and the display module 22 can be used to control the start and stop of the charging stack.

[0054] In some embodiments, the test system of the charging stack and the charging terminal also includes a test cabinet 23 with a receiving space, and the maintenance control unit 12 includes three, and the three maintenance control units 12 are respectively a first maintenance control unit 12A, a second maintenance control unit 12B and a third maintenance control unit 12C; the receiving space is used to receive the contactor control unit 13, the charging control unit 14, the first maintenance control unit 12A and the second maintenance control unit 12B.

[0055] The embodiment of the present invention utilizes the accommodation space of the test cabinet 23 to accommodate the contactor control unit 13, the charging control unit 14, the first maintenance control unit 12A and the second maintenance control unit 12B, thereby saving the space cost of testing the charging stack and the charging terminal, and facilitating the maintenance of the contactor control unit 13, the charging control unit 14, the first maintenance control unit 12A and the second maintenance control unit 12B.

[0056] In a specific embodiment, the structure diagram of the test cabinet 23 is as follows: Figure 4 As shown, the test cabinet 23 includes a rear door 24, a left mounting plate 25, a left door 26, a contactor mounting plate 27, a right door 28, a display module mounting plate 29, a status display unit mounting plate 30, a disconnecting unit mounting plate 31, a right mounting plate 32 and a debugging test board mounting plate 33.

[0057] In some embodiments, the contactor control unit 13 , the charging control unit 14 , the first maintenance control unit 12A, and the second maintenance control unit 12B are disposed on a first mounting plate of the test cabinet 23 .

[0058] In a specific embodiment, the structural diagram of the first mounting plate of the test cabinet 23 is as follows: Figure 5 As shown, the contactor control unit 13 , the charging control unit 14 , the first maintenance control unit 12A and the second maintenance control unit 12B are arranged on the first mounting plate of the test cabinet 23 .

[0059] In some embodiments, the receiving space is also used to receive the contactor 15 , and the contactor 15 is disposed on the second mounting plate of the test cabinet 23 .

[0060] In a specific embodiment, the structural diagram of the second mounting plate of the test cabinet 23 is as follows: Figure 6 As shown, the contactor 15 is disposed on the second mounting plate of the test cabinet 23. The second mounting plate may include a contactor mounting plate 27.

[0061] In some embodiments, the accommodation space is also used to accommodate the remote information control unit 11, the power supply 19 and the third maintenance control unit 12C, and the remote information control unit 11, the power supply 19 and the third maintenance control unit 12C are arranged on the third mounting plate of the test cabinet 23.

[0062] In a specific embodiment, the structural diagram of the third mounting plate of the test cabinet 23 is as follows: Figure 7 As shown, a connection terminal 34 is also provided on the third mounting plate of the test cabinet 23 .

[0063] In some embodiments, the receiving space is also used to receive the disconnecting unit 21 and the status display unit 20 , and the disconnecting unit 21 and the status display unit 20 are disposed on a fourth mounting plate of the test cabinet 23 .

[0064] In a specific embodiment, the structural diagram of the fourth mounting plate of the test cabinet 23 is as follows: Figure 8As shown, the fourth mounting plate of the test cabinet 23 is also provided with a display module 22, a debugging test board 18, a power indicator light 35, and casters 36. The power indicator light 35 can be used to display whether the charging stack is working, and the casters 36 can facilitate the movement of the test cabinet 23. The fourth mounting plate may include a display module mounting plate 29, a status display unit mounting plate 30, a disconnecting unit mounting plate 31, and a debugging test board mounting plate 33.

[0065] The test system of the charging stack and the charging terminal provided by the embodiment of the present invention sends a test signal through the test unit 16; the maintenance control unit 12, after receiving the test signal, enables the communication interface of the maintenance control unit 12 to obtain a power-on signal to simulate the power-on of the charging module of the charging stack; the remote information control unit 11 receives the test signal and transmits the test signal to the charging control unit 14; the charging control unit 14, after receiving the test signal, enables the charging gun output signal port of the charging control unit 14 to obtain a charging signal to simulate the charging of the charging terminal; the contactor control unit 13, after receiving the test signal, enables the contactor control interface of the contactor control unit 13 to obtain a contactor closing signal to close the corresponding contactor 15; the indication subunit 161 displays the status of the contactor 15; by simulating the power-on of the charging module of the charging stack, simulating the charging of the charging terminal, closing the contactor 15, and displaying the status of the contactor 15, the simulation test of the charging stack and the charging terminal can be realized without placing the charging stack and the charging terminal with large volume and mass together, which can improve the test efficiency of the charging stack and the charging terminal.

[0066] The test system for the charging stack and the charging terminal provided in the embodiment of the present invention can integrate the hardware environment of the charging stack and the charging terminal into a test cabinet 23, and perform simulation tests on the charging stack and the charging terminal, thereby solving the problem that the high-power charging stack and the charging terminal are large in size, heavy in weight, and inconvenient to test, and improving the test efficiency. The test cabinet is equipped with casters 36 with brakes, and the position of the test cabinet can be moved according to actual conditions, which is very convenient. The test cabinet 23 has a compact structure, small size, and light weight. The material of the test cabinet 23 is ordinary plate material, which is cheap. The test system for the charging stack and the charging terminal adopts a modular design, which is convenient for installation and maintenance. The test cabinet 23 adopts a three-door design, which is convenient for installation and maintenance. The disconnecting unit 21 on the panel and the contactor 15 in the test cabinet 23 are arranged in the same way, which is convenient for finding the cause during testing. The status display unit 20 (indicator light) corresponds one to one with the contactor 15, which is convenient for finding the cause during testing. The test is only a signal simulation test without loading current. The test conditions are not as strict as the load test, and the components required for loading the load are omitted. The assembly is simple and fast, with a human-computer interaction interface, and the detection and debugging are clear and understandable.

[0067] The technical features of the above embodiments may be combined arbitrarily. To make the description concise, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0068] The above embodiments only express the preferred implementation modes of the present invention, and the descriptions thereof are relatively specific and detailed, but they cannot be understood as limiting the scope of the invention patent. It should be pointed out that, for those of ordinary skill in the art, several variations and improvements can be made without departing from the concept of the present invention, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A testing system for a charging stack and a charging terminal, characterized in that: It includes a remote information control unit, a maintenance control unit, a contactor control unit, a charging control unit, a contactor and a test unit, wherein the test unit further includes an indication subunit; The testing unit is used to send a test signal; The maintenance control unit is configured to, after receiving the test signal, enable the communication interface of the maintenance control unit to obtain a power-on signal to simulate the power-on of the charging module of the charging stack; The telematics control unit is configured to receive the test signal and transmit the test signal to the charging control unit; The charging control unit is configured to, after receiving the test signal, enable the charging gun output signal port of the charging control unit to obtain a charging signal to simulate charging at the charging terminal; The contactor control unit is configured to, after receiving the test signal, enable the contactor control interface of the contactor control unit to obtain a contactor closing signal, so as to close the corresponding contactor; The indicating subunit is used to display the status of the contactor.

2. The charging stack and charging terminal testing system according to claim 1, characterized in that: The test system for the charging stack and the charging terminal further includes a disconnecting unit, which is configured to disconnect the corresponding contactor after receiving a disconnecting signal.

3. The charging stack and charging terminal testing system according to claim 2, characterized in that: The test system for the charging stack and the charging terminal further includes status display units. The number of the status display units is equal to the number of the contactors. The status display units are connected to the contactors one by one and are used to display the status of the contactors.

4. The charging stack and charging terminal testing system according to claim 3, characterized in that: The test system for the charging stack and the charging terminal further includes a power supply, which is used to supply power to the telematics control unit, the maintenance control unit, the contactor control unit, and the charging control unit.

5. The charging stack and charging terminal testing system according to claim 1, characterized in that: The test unit is deployed on the host computer, the contactor control unit is connected to the remote information control unit and the maintenance control unit respectively, and the remote information control unit is also connected to the maintenance control unit and the charging control unit respectively; the host computer is connected to the remote information control unit, the maintenance control unit, and the contactor control unit respectively.

6. The charging stack and charging terminal testing system according to claim 4, characterized in that: The testing system for the charging stack and the charging terminal also includes a test cabinet with a receiving space. The maintenance control units include three, which are respectively a first maintenance control unit, a second maintenance control unit and a third maintenance control unit; the receiving space is used to receive the contactor control unit, the charging control unit, the first maintenance control unit and the second maintenance control unit.

7. The charging stack and charging terminal testing system according to claim 6, characterized in that: The contactor control unit, the charging control unit, the first maintenance control unit, and the second maintenance control unit are arranged on a first mounting plate of the test cabinet.

8. The charging stack and charging terminal testing system according to claim 6, characterized in that: The receiving space is also used to receive the contactor, which is arranged on the second mounting plate of the test cabinet.

9. The charging stack and charging terminal testing system according to claim 6, characterized in that: The accommodation space is further used to accommodate the remote information control unit, the power supply and the third maintenance control unit. The remote information control unit, the power supply and the third maintenance control unit are arranged on the third mounting plate of the test cabinet.

10. The charging stack and charging terminal testing system according to claim 6, characterized in that: The receiving space is further used to receive the disconnecting unit and the status display unit. The disconnecting unit and the status display unit are arranged on the fourth mounting plate of the test cabinet.

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