AC charging pile testing device

Abstract

The invention discloses an alternating current charging pile testing device which comprises a charging pile testing device body, an operation table, a front door, universal wheels, a left side door, a right side door, a testing platform, a national standard charging port, a European standard charging port, a 220V alternating current wire inlet, a storage box and a display screen. A first-layer tray, a second-layer tray and a third-layer tray are arranged; the device is reasonable in design, simple in structure, low in manufacturing cost and convenient to use, the simulation test of charging of the electric vehicle is realized, and the production cost is reduced.

Description

Technical Field

[0001] The present invention belongs to the technical field of AC charging pile testing, and particularly relates to an AC charging pile testing device. Background Art

[0002] With the development of electric vehicles, charging piles have also seen an explosive growth. All over the country, the construction and installation of charging piles are encouraged and supported to meet the charging needs of electric vehicles. The charging efficiency, safety, and reliability of charging piles play a crucial role, directly affecting the user experience. Currently, before leaving the factory, AC charging piles will undergo reliability tests before leaving the factory through relevant test tooling in the factory to truly simulate various faults encountered during the charging process, avoiding problems such as inconvenient testing caused by using electric vehicles as test carriers, and also avoiding damage to the tested vehicles due to AC pile equipment failures. However, the existing tests are mainly manual, which cannot efficiently carry out detection work, with a large workload, high difficulty, high labor cost, and low efficiency. Moreover, the existing test tooling equipment is large in size, not easy to move, and difficult to meet the actual test requirements. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to overcome the deficiencies of the prior art and provide an AC charging pile testing device with a compact structure, higher testing accuracy, convenient operation and use, and low cost, which can well meet the test requirements of laboratories and factories.

[0004] The present invention is implemented by adopting the following technical solutions:

[0005] An AC charging pile testing device includes the body of the charging pile testing device, an operation table, a front door, universal wheels, left and right side doors, a test platform, a national standard charging port, a European standard charging port, a 220V AC power supply inlet, a storage box, a display screen. The interior of the AC charging pile test tooling adopts a compartmentalized design structure, and is provided with a first-layer tray, a second-layer tray, and a third-layer tray; the first-layer tray, the second-layer tray, and the third-layer tray are respectively fixed on the body. The first-layer tray is respectively provided with a controller, a contactor, a multi-functional ammeter, a current and voltage acquisition unit, and an auxiliary power source; the second-layer tray is respectively provided with a load resistor, a cooling fan, a sensor, a charging gun socket one, and a charging gun socket two; the third-layer tray is respectively provided with a computer mainframe, a socket strip, and AC power inlets, network cable, and communication line interfaces; each layer has a wire passing hole, and wires are connected to devices through the wire passing holes to achieve control and communication.

[0006] The front door and the left and right side doors of the body of the charging pile testing device are provided with rectangular heat dissipation holes. The front door is used as an operation window for the air switch and the computer mainframe, and the left and right side doors have the same structure.

[0007] The temperature signal on the surface of the load resistor is collected by the sensor and fed back to the controller. The controller controls the start and stop of the fan to dissipate heat from the second layer. When the temperature on the resistor surface is less than 50 °C, the fan will not start, and heat dissipation is carried out through the heat dissipation holes on the front sealing plate and the left and right side sealing plates. This is natural heat dissipation. When the temperature on the resistor surface is greater than 50 °C, when the sensor collects the temperature signal, the controller starts the fan to dissipate heat from the second layer. This is forced heat dissipation.

[0008] A test platform is installed on the left door of the main body of the charging pile test device.

[0009] The test platform includes a pneumatic strut and a charging pile placement table. By operating the pneumatic strut, the charging pile placement table can be retracted and flattened.

[0010] Four universal wheels are installed at the bottom of the main body. The front two universal wheels control the direction, and the rear two universal wheels have a self-locking function.

[0011] Insert the charging gun into the charging port of the test device. When the charging pile is powered on normally, start the air switch of the test device. After detecting that the charging gun is inserted into the test tooling and the connection status is normal, operate the test software on the display screen to achieve automatic detection with one key. During the test process, the detection and operation information can be viewed on the display screen. In case of an abnormal fault, a red abnormal fault message will appear on the display screen. After the entire test process is completed, the test information in the background can be exported through the test software.

[0012] All functional operation components can be operated on the display screen, making the test operation convenient and fast. Through the cooperation of the background software and manual work, functions such as test display function inspection, input function inspection, connection abnormality inspection, emergency stop function inspection, and charging method inspection can be tested. The charging gun, in cooperation with the multi-functional ammeter and the load resistor, can perform tests such as power metering error test, output voltage error inspection, and output current error inspection.

[0013] After inserting the gun, one-key automatic detection can be achieved. During the test process, the detection and operation information can be viewed on the display screen. In case of an abnormal fault, a red abnormal fault message will appear on the display screen. After the entire test process is completed, the test information in the background can be exported through the test software.

[0014] To achieve the above objectives, the present invention combines the actual usage situation and achieves the following effects:

[0015] (1) The detection is convenient. After inserting the charging gun, the whole process of the charging pile can be detected through the computer.

[0016] (2) It is safe and reliable. The test device fully considers the heat dissipation problems under different working conditions to ensure the safety and stability of the detection equipment and the safety of the detection personnel.

[0017] (3) It has a reasonable design, simple structure, low cost, and is easy to use, realizing the simulation test for charging electric vehicles and reducing the production cost.

[0018] (4) This invention meets the test requirements of both European standard AC and national standard AC charging piles, and there is no need to replace the detection equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is the left front 45° axonometric view of the present invention;

[0020] Figure 2 It is the right rear 45° axonometric view of the present invention;

[0021] Figure 3 It is the front view of the present invention;

[0022] Figure 4 It is the device layout diagram of the present invention;

[0023] Figure 5 It is the working principle diagram of the present invention;

[0024] 1. Body; 2. Operating table; 3. Front door; 4. Universal wheel; 5. Left and right side doors; 6. Sensor; 7. Test platform; 8. National standard charging port; 9. European standard charging port; 10. 220V AC power inlet; 11. Storage box; 12. Display screen; 13. First layer tray; 14. Second layer tray; 15. Third layer tray; 3-1. First operation window; 3-2. Second operation window; 7-1. Charging pile placement table; 7-2. Pneumatic strut; 13-1. Computer mainframe; 13-2. Power strip; 14-1. Load resistor; 14-2. Cooling fan; 14-3. Second tray wire passing hole; 14-4. Sensor; 15-1. First tray wire passing hole; 15-2. Auxiliary power source; 15-3. AC contactor; 15-4. Control board; 15-5. Wire groove; 15-5. Multifunctional electric meter. DETAILED DESCRIPTION OF THE INVENTION

[0025] The present invention is a production test device for AC charging piles of electric vehicles. During use, connect the power supply and network cable to the charging pile to be tested and power it on. Enter the test mode of the main board of the test device by clicking the test software on the computer, and check whether the display information on the display screen is normal. According to whether the charging pile to be tested is a national standard charging pile or a European standard charging pile, insert the charging gun on the charging pile to be tested into different charging ports of the AC charging pile test device. Insert the AC charging gun into the charging gun port of the test device. After starting the test device, click "Charge" on the display screen, and the control board confirms whether the connection status with the CC interface of the charging gun is normal (the CC interface is the connection detection signal). Through automatic detection, confirm that the connection and communication between the test device and the charging gun are normal, and start the charging process. The charging will be dissipated as heat by the load resistor.

[0026] Insert the charging gun into the charging port of the test device. The charging pile is powered on normally. Turn on the air switch of the test device. The device to be tested detects that the charging gun is inserted into the test tooling and the connection status is normal. Operate the test software on the display screen to achieve automatic detection with one key. During the test process, the detection and operation information can be viewed on the display screen. In case of an abnormal fault, a red abnormal fault message will appear on the display screen. After the entire test process is completed, the test information in the background can be exported through the test software.

[0027] In the present invention, the temperature signal on the surface of the load resistor is collected by a sensor and fed back to the controller. The controller controls the start and stop of the fan to dissipate heat from the second layer, and realizes natural switching between two working conditions of natural heat dissipation and forced heat dissipation to achieve energy saving. When the temperature on the surface of the resistor is less than 50 °C, the fan will not start, and heat dissipation is carried out through the heat dissipation holes on the front sealing plate and the left and right side sealing plates. This is natural heat dissipation; when the temperature on the surface of the resistor is greater than 50 °C, when the sensor collects the temperature signal, the controller starts the fan to dissipate heat from the second layer. This is forced heat dissipation.

[0028] The present invention provides a test device for an AC charging pile, and the specific implementation method is as follows:

[0029] The present invention is a production test device for an AC charging pile for electric vehicles. During use, connect the power supply and network cable to the charging pile to be tested and power it on. Enter the test mode of the main board of the test device by clicking the test software on the computer, and check whether the display information on the display screen is normal. According to whether the charging pile to be tested is a national standard charging pile or a European standard charging pile, insert the charging gun on the charging pile to be tested into different charging ports of the AC charging pile test device. Insert the AC charging gun into the charging gun port of the test device. After starting the test device, click "Charge" on the display screen, and the control board and the CC interface of the charging gun confirm whether the connection status is normal (the CC interface is the connection detection signal). Through automatic detection, confirm that the connection and communication between the test device and the charging gun are normal, and start the charging process. The charging will be dissipated in the form of heat by the load resistor. Insert the charging gun into the charging port of the test device. The charging pile is powered on normally. Turn on the air switch of the test device. The device to be tested detects that the charging gun is inserted into the test tooling and the connection status is normal. Operate the test software on the display screen to achieve automatic detection with one key. During the test process, the detection and operation information can be viewed on the display screen. In case of an abnormal fault, a red abnormal fault message will appear on the display screen. After the entire test process is completed, the test information in the background can be exported through the test software.

[0030] Although the present disclosure is disclosed as above, the protection scope of the present disclosure is not limited thereto. Those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present disclosure, and these changes and modifications will all fall within the protection scope of the present invention.

Claims

1. An AC charging pile test device, comprising a charging pile test device body, an operating table, a front door, universal wheels, left and right side doors, a test platform, a national standard charging port, a European standard charging port, a 220V AC power inlet, a storage box, and a display screen, characterized in that: The interior of the AC charging pile test tooling adopts a compartment design structure, with a first-layer tray, a second-layer tray, and a third-layer tray; the first-layer tray, the second-layer tray, and the third-layer tray are respectively fixed on the main body, and the first-layer tray is respectively provided with a controller, a contactor, a multi-function meter, a current and voltage acquisition unit, and an auxiliary source; the second-layer tray is respectively provided with a load resistor, a cooling fan, a sensor, a charging gun socket one and a charging gun socket two, and the third-layer tray is respectively provided with a computer host, a socket strip, and an AC incoming line, a network cable, and a communication line interface; each layer has a threading hole, through which the cables are connected to the device to achieve control and communication.

2. The AC charging pile testing device according to claim 1, characterized in that: The front door and left and right side doors of the main body of the charging pile testing device are provided with rectangular heat dissipation holes, the front door is used to operate the operation window of the circuit breaker and the computer host, and the left and right side doors have the same structure.

3. The AC charging pile testing device according to claim 1, characterized in that: The sensor collects the temperature signal on the surface of the load resistor and feeds it back to the controller. The controller controls the start and stop of the fan to dissipate heat to the second layer. When the surface temperature of the resistor is less than 50°C, the fan will not start, and heat will be dissipated through the heat dissipation holes on the front cover and the left and right cover plates. This is natural heat dissipation. When the surface temperature of the resistor is greater than 50°C, when the sensor collects the temperature signal, the controller starts the fan to dissipate heat to the second layer. This is forced heat dissipation.

4. The AC charging pile testing device according to claim 1, characterized in that: A test platform is installed on the left side door of the main body of the charging pile test device.

5. The AC charging pile testing device according to claim 4, characterized in that: The test platform includes a pneumatic diagonal support and a charging pile placement table. By operating the pneumatic diagonal support, the charging pile placement table can be retracted and flattened.

6. The AC charging pile testing device according to claim 1, characterized in that: There are four universal wheels installed at the bottom of the main body. The two universal wheels in the front control the direction, and the two universal wheels on the rear door have self-locking function.

7. The AC charging pile testing device according to claim 1, characterized in that: Insert the charging gun into the charging port of the test device, the charging pile is powered on normally, start the circuit breaker of the test device, and the test detects that the charging gun is inserted into the test fixture and the connection status is normal. Operate the test software on the display screen to achieve automatic detection with one click. During the test, you can view the detection and operation information on the display screen. If an abnormal fault occurs, a red abnormal fault message will appear on the display screen. After the entire test process is completed, the background test information can be exported through the test software.

8. The AC charging pile testing device according to claim 1, characterized in that: All functional operating components can be operated on the display screen, making the test operation convenient and quick. Through the background software and manual cooperation, the display function test, input function test, connection abnormality test, emergency stop function test, charging mode test, etc. can be tested. The charging gun can be used with the multi-function meter and load resistor to perform energy measurement error test, output voltage error test, output current error test and other tests.

9. The AC charging pile testing device according to claim 1, characterized in that: After the gun is inserted, one-button automatic detection can be achieved. During the test, the detection and operation information can be viewed on the display screen. If an abnormal fault occurs, a red abnormal fault message will appear on the display screen. After the entire test process is completed, the background test information can be exported through the test software.

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