A low-voltage high-current testing device

Abstract

The application provides a low-voltage large-current testing device, which comprises a bottom box body, symmetrically arranged red copper connecting blocks A and B, red copper bars placed on the red copper connecting blocks A and B, adjustable interval sliding blocks A and B arranged on the red copper connecting blocks A and B respectively, pressing blocks A and B arranged above the red copper connecting blocks A and B respectively, and driven to lift by air cylinders A and B respectively, and M connecting screws A and B connected to the outer ends of the red copper connecting blocks A and B respectively, and the M connecting screws A and B are connected with cables to form a loop. The red copper bars can be taken and replaced to connect the two red copper blocks, and the red copper bars are pressed by the air cylinders, the air cylinders are released after the test is completed, the red copper bars can be quickly taken down, and the current sensor to be tested is replaced, so that the test efficiency is improved, the production capacity is improved, and the production cost is reduced.

Description

Technical Field

[0001] This utility model relates to the technical field of photovoltaic energy storage, and in particular to a low-voltage high-current testing device. Background Technology

[0002] A current sensor is a current detection device that can sense the information of the measured current and transform the sensed information into an electrical signal or other required form of information output that meets certain standards, so as to meet the requirements of information transmission, processing, storage, display, recording and control.

[0003] Currently, testing equipment for current sensors uses cable-driven power testing, which is inefficient. Utility Model Content

[0004] To address the aforementioned issues, this utility model discloses a low-voltage, high-current testing device. By using a removable and replaceable copper busbar to connect copper blocks on both sides, and pressing the copper busbar down with a cylinder, the device can quickly remove the copper busbar and replace the current sensor to be tested after the test is completed. This improves testing efficiency, increases production capacity, and reduces production costs.

[0005] The specific plan is as follows: A low-voltage, high-current testing device includes a bottom housing and two copper connecting blocks A and B symmetrically arranged on its top surface. Copper busbars for mounting current sensors are placed on copper connecting blocks A and B. Adjustable-spacing sliders A and B are respectively provided on copper connecting blocks A and B for fixing the ends of the copper busbars. Above copper connecting blocks A and B are pressure blocks A and B for pressing the ends of the copper busbars, respectively. Pressure blocks A and B are driven to rise and fall by cylinders A and B, respectively. M-connecting screws A and B are respectively connected to the outer ends of copper connecting blocks A and B, and M-connecting screws A and B are connected to cables to form a circuit.

[0006] Furthermore, cooling fan A and cooling fan B are respectively connected to the sides of the copper connecting block A and copper connecting block B.

[0007] Furthermore, the bottom housing is provided with buttons A, B, and C on its side, and with a pressure gauge, a solenoid valve, a relay, and a switching power supply on its top surface; buttons A, B, and C are connected to the relay, the pressure gauge is connected to the solenoid valve, the solenoid valve is connected to cylinders A and B, the switching power supply is connected to the relay, and the relay is connected to the solenoid valve.

[0008] The beneficial effects of this application are as follows: This device features a novel and unique structure, offering not only high testing accuracy but also convenient product handling, making it highly efficient and convenient. The size of the copper busbar can be changed according to the size of the current via in the tested product, and the gap can be adjusted using adjustable spacing sliders B and A to accommodate copper busbars of different sizes, thus broadening its application prospects. Attached Figure Description

[0009] Figure 1 This is a schematic diagram of this application.

[0010] List of reference numerals in the attached diagram: 1-Copper connecting block A, 2-Pressure gauge, 3-Button A, 4-Solenoid valve, 5-Button B, 6-Relay, 7-Button C, 8-Switching power supply, 9-Copper connecting block B, 10-Cooling fan A, 11-M12 connecting screw A, 12-Pressure block A, 13-Cylinder A, 14-Adjustable spacing slider A, 15-Bottom housing, 16-Copper busbar, 17-Adjustable spacing slider B, 18-Pressure block B, 19-Cylinder B, 20-M12 connecting screw B, 21-Cooling fan B, 22-Current sensor under test. Detailed Implementation

[0011] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention.

[0012] As shown in the figure, this application provides a low-voltage high-current testing device, including a bottom housing 15 and copper connecting blocks A1 and B9 symmetrically arranged on both sides of its top surface. Copper busbars 16 for mounting the current sensor 22 under test are placed on copper connecting blocks A1 and B9, and adjustable spacing sliders A14 and B17 for fixing the ends of copper busbars 16 are respectively provided on copper connecting blocks A1 and B9. Pressure blocks A12 and B18 for pressing the ends of copper busbars 16 are respectively provided above copper connecting blocks A1 and B9, and pressure blocks A12 and B18 are driven to rise and fall by cylinders A13 and B19 respectively. M12 connecting screws A11 and B20 are respectively connected to the outer ends of copper connecting blocks A1 and B9, and M12 connecting screws A11 and B20 are connected to cables to form a circuit.

[0013] In this embodiment, cooling fan A10 and cooling fan B21 are respectively connected to the sides of copper connecting block A1 and copper connecting block B9.

[0014] In this embodiment, the bottom housing 15 has buttons A3, B5 and C7 on its side and a pressure gauge 2, a solenoid valve 4, a relay 6 and a switching power supply 8 on its top surface. Buttons A3, B5 and C7 are connected to the relay 6 (circuit), the pressure gauge 2 is connected to the solenoid valve 4, the solenoid valve 4 is connected to cylinders A13 and B19 (air circuit), the switching power supply 8 is connected to the relay 6, and the relay 6 is connected to the solenoid valve 4 (circuit).

[0015] The steps for the applied work are as follows: S1, the switching power supply outputs operating voltage to the relay and solenoid valve.

[0016] S2, M12 connecting screw A, and M12 connecting screw B connect the copper lugs of the cable, providing 2000A 5V current.

[0017] S3. Remove the copper busbar and insert the "current sensor under test" into the copper busbar.

[0018] S4. Place the copper on copper connector A and copper connector B.

[0019] S5. The operator presses buttons A and C simultaneously with both hands to trigger the relay to close the solenoid valve. Cylinders A and B then move to press down pressure blocks A and B, tightening the copper busbar.

[0020] S6. Pass a 2000A 5V current through the copper busbar to test the current sensor. After the test is completed, turn off the high current, press button B to release pressure block A and pressure block B, remove the copper busbar and take out the tested current sensor. Then put in a new untested current sensor and repeat the above steps to test it.

[0021] S7. During testing: Cooling fan A and cooling fan B operate normally, which helps to cool copper connector A and copper connector B during operation, thereby improving the test accuracy.

[0022] The technical means disclosed in this utility model are not limited to those disclosed in the above embodiments, but also include technical solutions composed of any combination of the above technical features. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications are also considered within the scope of protection of this utility model.

Claims

1. A low-voltage, high-current testing device, characterized in that, The device includes a bottom housing (15) and copper connecting blocks A (1) and B (9) symmetrically arranged on both sides of its top surface. Copper busbars (16) for mounting the current sensor (22) to be measured are placed on copper connecting blocks A (1) and B (9). Adjustable spacing sliders A (14) and B (17) for fixing the ends of the copper busbars (16) are respectively provided on copper connecting blocks A (1) and B (9). Above B (9) are respectively pressure blocks A (12) and B (18) for pressing the ends of the copper busbar (16), and pressure blocks A (12) and B (18) are driven to rise and fall by cylinders A (13) and B (19) respectively. The outer ends of the copper connecting blocks A (1) and B (9) are respectively connected to M12 connecting screws A (11) and B (20), and the M12 connecting screws A (11) and B (20) are connected to the connecting cable to form a circuit.

2. The low-voltage high-current testing device according to claim 1, characterized in that, The sides of the copper connecting block A (1) and copper connecting block B (9) are respectively connected to cooling fan A (10) and cooling fan B (21).

3. The low-voltage high-current testing device according to claim 1, characterized in that, The bottom housing (15) has buttons A (3), B (5) and C (7) on its side, and a pressure gauge (2), a solenoid valve (4), a relay (6) and a power supply (8) on its top surface. Buttons A (3), B (5) and C (7) are connected to the relay (6), the pressure gauge (2) is connected to the solenoid valve (4), the solenoid valve (4) is connected to cylinder A (13) and cylinder B (19), the power supply (8) is connected to the relay (6), and the relay (6) is connected to the solenoid valve (4).

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