AC charging pile function test cabinet

Abstract

The utility model discloses an alternating-current charging pile function test cabinet. An alternating-current variable-frequency power supply is connected into a power grid and serves as a test power supply of a charging pile to be tested; a to-be-tested charging pile is detachably and electrically connected with an alternating current vehicle simulation device, the alternating current vehicle simulation device carries alternating current test platforms of more than two different standard protocols, and the alternating current test platforms comprise electric vehicle alternating current charging interface module devices corresponding to the standard protocols; the standard protocol power supply output ports corresponding to the current charging pile to be tested are respectively connected with the program-controlled resistive load; the industrial personal computer is connected with and controls the program-controlled resistive load; the industrial personal computer is connected with and controls the work of alternating current test platforms corresponding to different standard protocols in the alternating current vehicle simulation device; the oscilloscope detects electric power parameters of the output end of the alternating-current variable-frequency power supply and the output end of the corresponding standard protocol power supply respectively; the power analyzer detects power factor parameters of the output end of the alternating-current variable-frequency power supply and the output end of the corresponding standard protocol power supply and outputs the power factor parameters to the industrial personal computer. According to the utility model, test requirements of charging piles with different standard protocols can be met.

Description

Technical Field

[0001] This utility model relates to the field of new energy vehicle technology, and in particular to an AC charging pile functional test cabinet. Background Technology

[0002] Existing simple AC charging pile testers only involve turning on the charging simulation switch (S2) and visually checking if the CP and CC indicator lights are lit normally, displaying the normal voltage; turning off the charging simulation switch (S2) extinguishes the CP and CC indicators and disables the voltage display. This incomplete functional testing leads to the easy omission of defects, increasing company costs and failing to meet customer quality requirements or national functional testing standards. In other words, it is known that AC charging pile testers have incomplete functional testing capabilities, are prone to missing defects, increase company costs, fail to meet customer quality requirements, and do not meet national functional testing standards. Utility Model Content

[0003] The purpose of this utility model is to provide a functional test cabinet for AC charging piles to meet the testing needs of charging piles with different standard protocols.

[0004] The technical solution adopted in this utility model is:

[0005] The AC charging pile functional test cabinet includes a programmable resistor load, an AC frequency converter, and a control cabinet. The control cabinet houses an oscilloscope, a power analyzer, an industrial computer, and an AC vehicle simulation device connected to the industrial computer. An external power grid is connected to the AC frequency converter, which is connected to the charging pile under test and provides a stable test power supply conforming to product specifications. The charging pile under test is detachably electrically connected to the AC vehicle simulation device, which is equipped with AC test platforms using two or more different standard protocols. Each AC test platform includes an electric vehicle AC charging interface module corresponding to its standard protocol. The electric vehicle AC charging interface module includes a power input port and a power output port corresponding to the AC test platform. The power output port corresponding to the standard protocol of the charging pile under test is connected to the programmable resistor load. The industrial computer connects to and controls the programmable resistor load.

[0006] The industrial control computer connects to the AC vehicle simulator and controls the operation of the AC test platform with different corresponding standard protocols in the AC vehicle simulator.

[0007] The oscilloscope is connected to the output terminals of the AC frequency converter power supply and the corresponding standard protocol power supply to detect and display the power parameters of the charging pile under test.

[0008] The power analyzer is connected to the output terminals of the AC frequency converter and the corresponding standard protocol power supply to detect the power factor parameters of the charging pile under test; the output terminal of the power analyzer is connected to the industrial control computer.

[0009] Furthermore, the power input ports and power output ports corresponding to the AC test platforms of different standard protocols are integrated into an input / output module. The input / output module includes power input ports and power output ports arranged in groups. The power input ports include power input ports of at least two standard protocols, and the power output ports include power output ports of at least two standard protocols corresponding to the power input ports.

[0010] Furthermore, AC testing platforms with different standard protocols provide corresponding control guidance and fully automated interoperability testing services for AC charging piles with corresponding standard protocols.

[0011] Furthermore, the communication test platform includes national standard communication test platforms, European standard communication test platforms, and American standard communication test platforms.

[0012] Furthermore, the industrial control computer connects to the AC test platform of the corresponding standard protocol of the AC vehicle simulator through the corresponding guidance device, so as to guide and control the AC test platform of the corresponding standard protocol to work.

[0013] Furthermore, the national standard AC test platform, European standard AC test platform, and American standard AC test platform are integrated into the AC vehicle simulation device in a time-sharing manner. That is, only one of the national standard AC, European standard AC, or American standard AC test platforms is allowed to operate at the same time, while being compatible with charging pile products with single-phase and three-phase AC power supplies;

[0014] Furthermore, the power input ports include American standard, European standard, and Chinese standard power input ports; the power output ports include American standard, European standard, and Chinese standard power output ports.

[0015] Furthermore, it also includes safety testing fixtures, which are connected to the charging pile under test. The safety testing fixtures are connected to a safety testing instrument, which detects and generates safety testing data and connects it to the industrial control computer.

[0016] Furthermore, the industrial control computer is connected to a display device, which displays the data information collected by the industrial control computer and enables human-computer interaction.

[0017] Furthermore, it includes a leakage current tester connected to an AC vehicle simulator to detect leakage current data from the AC vehicle simulator.

[0018] Furthermore, the back panel of the control cabinet is a heat dissipation network structure, and a cooling fan is installed at the top of the control cabinet. The cooling fan and the heat dissipation network structure dissipate heat from the inside of the control cabinet.

[0019] This utility model adopts the above technical solution. The entire system consists of an industrial control PC, a national standard AC test platform, a European standard AC test platform, an American standard AC test platform, a test system power interface, and various instruments and equipment, including oscilloscopes, leakage current testers, AC frequency converters, and programmable resistor loads. Only the programmable resistor load and the AC frequency converter are externally mounted; the remaining instruments and equipment are integrated into a single control cabinet. The entire system is tightly connected via a power bus and a signal bus. The control cabinet uses a standard large cabinet, which is space-saving, has a neat appearance, and is easy to maintain. The built-in national standard AC testing platform includes an electric vehicle AC charging interface simulation device (national standard), providing fully automated testing services such as control guidance and interoperability for national standard AC charging piles. The built-in European standard AC testing platform includes an electric vehicle AC charging interface simulation device (European standard), providing fully automated testing services such as charging control guidance and interoperability for European standard AC charging piles. The built-in American standard AC testing platform includes an electric vehicle AC charging interface simulation device (American standard), providing fully automated testing services such as charging control guidance and interoperability for American standard AC charging piles. This invention is based on an industrial control PC, national standard, European standard, and American standard bus protocol modes, and the system has strong scalability. By adding corresponding testing equipment, the expansion needs of testing functions can be met. This invention can meet the testing requirements of charging piles with different standard protocols. Attached Figure Description

[0020] The present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments;

[0021] Figure 1 This is a schematic diagram of the principle architecture of the AC charging pile functional test cabinet of this utility model. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings.

[0023] like Figure 1 As shown, this utility model discloses an AC charging pile functional test cabinet, mainly including an industrial control computer, vehicle sockets (national standard AC, European standard AC, American standard AC), vehicle battery management system simulation software, vehicle control simulation circuit, oscilloscope (including voltage and current sampling accessories), resistive load, safety compliance comprehensive tester, AC frequency converter, leakage current tester, etc. The programmable resistive load is external, while the remaining instruments and equipment are integrated into a single control cabinet. The entire system is tightly connected via a power bus and signal bus. It controls all modules and performs data acquisition and analysis, overcoming the limitation of outputting a single test report on a single screen.

[0024] Specifically, this practical AC charging pile functional test cabinet includes a programmable resistor load, an AC frequency converter, and a control cabinet. The control cabinet houses an oscilloscope, a power analyzer, an industrial computer, and an AC vehicle simulation device connected to the industrial computer. An external power grid is connected to the AC frequency converter, which is connected to the charging pile under test and provides a stable test power supply conforming to the product specifications. The charging pile under test is detachably electrically connected to the AC vehicle simulation device, which is equipped with AC test platforms using two or more different standard protocols. Each AC test platform includes an electric vehicle AC charging interface module corresponding to its standard protocol. The electric vehicle AC charging interface module includes a power input port and a power output port corresponding to the AC test platform. The power output port corresponding to the standard protocol of the charging pile under test is connected to the programmable resistor load. The industrial computer connects to and controls the programmable resistor load.

[0025] The industrial control computer connects to the AC vehicle simulator and controls the operation of the AC test platform with different corresponding standard protocols in the AC vehicle simulator.

[0026] The oscilloscope is connected to the output terminals of the AC frequency converter power supply and the corresponding standard protocol power supply to detect and display the power parameters of the charging pile under test.

[0027] The power analyzer is connected to the output terminals of the AC frequency converter and the corresponding standard protocol power supply to detect the power factor parameters of the charging pile under test; the output terminal of the power analyzer is connected to the industrial control computer.

[0028] Furthermore, the power input ports and power output ports corresponding to the AC test platforms of different standard protocols are integrated into an input / output module. The input / output module includes power input ports and power output ports arranged in groups. The power input ports include power input ports of at least two standard protocols, and the power output ports include power output ports of at least two standard protocols corresponding to the power input ports.

[0029] Furthermore, AC testing platforms with different standard protocols provide corresponding control guidance and fully automated interoperability testing services for AC charging piles with corresponding standard protocols.

[0030] Furthermore, the communication test platform includes national standard communication test platforms, European standard communication test platforms, and American standard communication test platforms.

[0031] Furthermore, the industrial control computer connects to the AC test platform of the corresponding standard protocol of the AC vehicle simulator through the corresponding guidance device, so as to guide and control the AC test platform of the corresponding standard protocol to work.

[0032] Furthermore, the national standard AC test platform, European standard AC test platform, and American standard AC test platform are integrated into the AC vehicle simulation device in a time-sharing manner. That is, only one of the national standard AC, European standard AC, or American standard AC test platforms is allowed to operate at the same time, while being compatible with charging pile products with single-phase and three-phase AC power supplies;

[0033] Furthermore, the power input ports include American standard, European standard, and Chinese standard power input ports; the power output ports include American standard, European standard, and Chinese standard power output ports.

[0034] Furthermore, it also includes safety testing fixtures, which are connected to the charging pile under test. The safety testing fixtures are connected to a safety testing instrument, which detects and generates safety testing data and connects it to the industrial control computer.

[0035] Furthermore, the industrial control computer is connected to a display device, which displays the data information collected by the industrial control computer and enables human-computer interaction.

[0036] Furthermore, it includes a leakage current tester connected to an AC vehicle simulator to detect leakage current data from the AC vehicle simulator.

[0037] Furthermore, the back panel of the control cabinet is a heat dissipation network structure, and a cooling fan is installed at the top of the control cabinet. The cooling fan and the heat dissipation network structure dissipate heat from the inside of the control cabinet.

[0038] It also includes a power switch assembly as a switch control component of the control cabinet to control the power supply to and from the control cabinet.

[0039] Specifically, the oscilloscope, industrial computer, input / output module, power analyzer, and vehicle simulation device are modularly installed in the control cabinet from the upper right to the lower right, and the display device is rotatably connected to one side of the control cabinet via a hinge assembly.

[0040] This utility model adopts the above technical solution. The entire system consists of an industrial control PC, a national standard AC test platform, a European standard AC test platform, an American standard AC test platform, a test system power interface, and various instruments and equipment, including oscilloscopes, leakage current testers, AC frequency converters, and programmable resistor loads. Only the programmable resistor load and the AC frequency converter are externally mounted; the remaining instruments and equipment are integrated into a single control cabinet. The entire system is tightly connected via a power bus and a signal bus. The control cabinet uses a standard large cabinet, which is space-saving, has a neat appearance, and is easy to maintain. The system includes a built-in national standard AC testing platform, comprising an electric vehicle AC charging interface simulator (national standard), providing fully automated testing services such as control guidance and interoperability for national standard AC charging piles; a built-in European standard AC testing platform, comprising an electric vehicle AC charging interface simulator (European standard), providing fully automated testing services such as charging control guidance and interoperability for European standard AC charging piles; and a built-in American standard AC testing platform, comprising an electric vehicle AC charging interface simulator (American standard), providing fully automated testing services such as charging control guidance and interoperability for American standard AC charging piles. Based on industrial control PCs and bus protocol modes of national, European, and American standards, this invention offers strong system scalability; simply adding corresponding testing equipment can meet the needs of expanding testing functions. This invention can satisfy the testing requirements of charging piles with different standard protocols.

[0041] Obviously, the described embodiments are only a part of the embodiments of this application, not all of them. Without conflict, the embodiments and features in the embodiments of this application can be combined with each other. The components of the embodiments of this application described and illustrated herein can generally be arranged and designed in various different configurations. Therefore, the detailed description of the embodiments of this application is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

Claims

1. An AC charging pile functional testing cabinet, characterized in that: It includes a programmable resistor load, an AC frequency converter, and a control cabinet. The control cabinet houses an oscilloscope, a power analyzer, an industrial computer, and an AC vehicle simulation device connected to the industrial computer. An external power grid is connected to the AC frequency converter, which connects to the charging pile under test (DUT) and provides a stable test power supply conforming to the product specifications. The DUT is detachably electrically connected to the AC vehicle simulation device, which is equipped with two or more AC test platforms using different standard protocols. Each AC test platform includes an electric vehicle AC charging interface module corresponding to its standard protocol. The electric vehicle AC charging interface module includes a power input port and a power output port corresponding to the AC test platform. The power output port corresponding to the standard protocol of the current DUT is connected to the programmable resistor load. The industrial computer connects to and controls the programmable resistor load. The industrial computer also connects to the AC vehicle simulation device and controls the operation of the AC test platforms corresponding to different standard protocols within the AC vehicle simulation device. An oscilloscope is connected to the output terminals of the AC inverter power supply and the corresponding standard protocol power supply to detect and display the power parameters of the charging pile under test; a power analyzer is connected to the output terminals of the AC inverter power supply and the corresponding standard protocol power supply to detect the power factor parameters of the charging pile under test; the output terminal of the power analyzer is connected to the industrial control computer.

2. The AC charging pile functional test cabinet according to claim 1, characterized in that: The power input ports and power output ports corresponding to different standard protocol AC test platforms are integrated into an input / output module. The input / output module includes power input ports and power output ports arranged in groups. The power input ports include power input ports of at least two standard protocols, and the power output ports include power output ports of at least two standard protocols corresponding to the power input ports.

3. The AC charging pile functional test cabinet according to claim 1, characterized in that: AC test platforms with different standard protocols provide corresponding control guidance and fully automated interoperability testing services for AC charging piles with corresponding standard protocols.

4. The AC charging pile functional test cabinet according to claim 1, characterized in that: The AC test platform includes Chinese standard AC test platforms, European standard AC test platforms, and American standard AC test platforms; the power input ports include American standard, European standard, and Chinese standard power input ports; the power output ports include American standard, European standard, and Chinese standard power output ports.

5. The AC charging pile functional test cabinet according to claim 1 or 4, characterized in that: The national standard AC test platform, the European standard AC test platform, and the American standard AC test platform are integrated into the AC vehicle simulation device in a time-sharing manner.

6. The AC charging pile functional test cabinet according to claim 1, characterized in that: The industrial control computer connects to the AC test platform of the corresponding standard protocol of the AC vehicle simulator through the corresponding guidance device, so as to guide and control the AC test platform of the corresponding standard protocol to work.

7. The AC charging pile functional test cabinet according to claim 1, characterized in that: It also includes safety testing fixtures, which are connected to the charging pile under test. The safety testing fixtures are connected to a safety testing instrument, which detects and generates safety testing data and connects it to the industrial control computer.

8. The AC charging pile functional test cabinet according to claim 1, characterized in that: The industrial computer is connected to a display device, which displays the data information collected by the industrial computer and enables human-computer interaction.

9. The AC charging pile functional test cabinet according to claim 1, characterized in that: It includes a leakage current tester, which is connected to an AC vehicle simulator to detect leakage current data from the AC vehicle simulator.

10. The AC charging pile functional test cabinet according to claim 1, characterized in that: The back panel of the control cabinet is a heat dissipation network structure, and a cooling fan is installed at the top of the control cabinet. The cooling fan and the heat dissipation network structure dissipate heat from the inside of the control cabinet.

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