High-voltage distribution box detection data acquisition equipment

Abstract

The utility model relates to the field of high-voltage distribution box detection, and discloses high-voltage distribution box detection data acquisition equipment, which comprises a direct-current voltage-stabilized power supply, an insulation voltage-withstanding instrument, a program-controlled universal meter, a program-controlled power supply, a CAN box, an analog quantity acquisition board card, an industrial personal computer and a test board card which are arranged in a box body, the detection module is used for detecting the performance of at least two to-be-detected high-voltage distribution boxes; the display is arranged at the top of the box body and performs information interaction with the industrial personal computer; wherein the direct-current voltage-stabilized power supply, the insulating voltage-withstanding instrument, the program-controlled universal meter, the program-controlled power supply, the CAN box and the analog quantity acquisition board card are respectively connected with the test board card, the test board card is connected with the industrial personal computer, and the industrial personal computer controls the test board card to work; and the test board card is provided with a high-voltage-resistant test port, an insulation test port, a line conduction test port, a relay pull-in / disconnection test port, a current sensor current value reading port, a connection point voltage test port and a data acquisition port, so as to realize acquisition of multi-performance test data of the high-voltage distribution box.

Description

Technical Field

[0001] The utility model relates to the technical field of high-voltage distribution box detection, in particular to a high-voltage distribution box detection data acquisition device. Background Art

[0002] With the development of electric vehicles, the testing of battery pack high-voltage distribution boxes is becoming increasingly critical. However, there is currently no established high-voltage distribution box testing data acquisition equipment in the industry. However, existing high-voltage distribution box monitoring data acquisition equipment cannot simultaneously meet the testing data requirements of different high-voltage distribution boxes, and cannot simultaneously test the performance of different high-voltage distribution boxes, making it non-universal. Summary of the Invention

[0003] In response to the above problems, the purpose of this utility model is to provide a high-voltage distribution box detection data acquisition device, which can realize the collection of rapid performance test data of high-voltage distribution boxes, has strong versatility and convenience, and the detection data acquisition device has a simple structure, is practical and reliable.

[0004] To achieve the above-mentioned purpose, the utility model adopts the following technical solutions: a high-voltage distribution box detection data acquisition device, which includes: a box body, in which a DC regulated power supply, an insulation withstand voltage tester, a programmable multimeter, a programmable power supply, a CAN box, an analog quantity acquisition board, an industrial computer and a test board are arranged to perform performance testing on at least two high-voltage distribution boxes to be tested arranged in the box body; a display is arranged on the top of the box body through an adjustable bracket, and exchanges information with the industrial computer; wherein the DC regulated power supply, the insulation withstand voltage tester, the programmable multimeter, the programmable power supply, the CAN box, and the analog quantity acquisition board are respectively connected to the test board, and the test board is connected to the industrial computer, and the industrial computer controls the operation of the test board; the test board is provided with a high-voltage resistance test port, an insulation test port, a line conduction test port, a relay pull-in / out test port, a current sensor current value reading port, a connection point voltage test port and a data acquisition port to collect multiple performance test data of the high-voltage distribution box.

[0005] Furthermore, each high-voltage distribution box to be tested includes a shell, a positive pole, a negative pole, multiple high-voltage sampling connectors and multiple low-voltage connectors; the high-voltage distribution box is also provided with multiple interfaces, including an internal installation interface, a communication interface, an acquisition interface and a power supply interface.

[0006] Furthermore, the insulation withstand voltage tester is switched and connected to each high voltage distribution box via a relay;

[0007] The insulation withstand voltage tester is electrically connected to the shell, positive pole and negative pole of the high-voltage distribution box, and is used to test the insulation withstand voltage of the high-voltage distribution box, and transmit the insulation withstand voltage test value to the test board through the high-voltage test port and the insulation test port; wherein, the insulation withstand voltage tester includes a ground terminal and a high-voltage terminal, and the ground terminal of the insulation withstand voltage tester is connected to the shell of the high-voltage distribution box.

[0008] Furthermore, the analog quantity acquisition board is electrically connected to the current sensor interface and the internal installation interface of the high-voltage distribution box to realize the current and temperature detection of the high-voltage distribution box, and transmit the detection value to the test board through the current sensor current value reading port;

[0009] The test board is also provided with an acquisition pair plug-in; the acquisition pair plug-in includes a voltage acquisition pin, the acquisition pair plug-in is electrically connected to the analog acquisition board, and the voltage acquisition pin is electrically connected to the acquisition interface of the high-voltage distribution box.

[0010] Furthermore, the CAN box is electrically connected to the communication interface of the high-voltage distribution box to control the closing and closing of the relay of the high-voltage distribution box, and transmits the test results to the test board via the relay closing / opening test port;

[0011] Among them, the CAN box is switched in turn through the CAN to IO module and the relay, and then connected to the communication interface of each high-voltage distribution box.

[0012] Furthermore, a DC regulated power supply is electrically connected to the power supply interface of the high-voltage distribution box to supply power to the high-voltage distribution box; the programmable power supply is used to provide constant voltage / constant current for the high-voltage distribution box; the programmable multimeter measures the sampling point voltage of the acquisition interface of the high-voltage distribution box through the voltage acquisition pin, and transmits the measured value to the test board through the connection point voltage test port and the line conduction test port.

[0013] Furthermore, at least two high-voltage distribution box test benches are provided in the box for accommodating the high-voltage distribution box.

[0014] Furthermore, a tooling trolley is provided on the side of the box body, and an adjustable clamp is provided inside the tooling trolley to fix distribution boxes of different sizes on the high-voltage distribution box test bench;

[0015] The work trolley can store wiring, and the side wall of the work trolley is also provided with a wiring harness opening for convenient wiring storage.

[0016] Furthermore, a hook is provided on the high-voltage distribution box test bench, and the hook is located on the side end surface of the high-voltage distribution box test bench.

[0017] Furthermore, insulating handrails are respectively provided on the rear side of the box and the rear side of the work trolley; universal wheels are provided at the bottom of the box for easy movement; a control panel is provided on the front side of the box, and a power switch, indicator light and emergency stop button connected to the industrial computer are provided on the control panel.

[0018] The utility model has the following advantages due to the adoption of the above technical solution:

[0019] 1. The utility model can meet the detection of different high-voltage distribution boxes, integrating the collection of test data such as high-voltage resistance test, insulation test, line continuity test, relay pickup and disconnection test, current sensor current value reading, connection point voltage test, etc.

[0020] 2. The utility model can realize the detection of the electrical performance of the high-voltage distribution box and provide accurate detection data, so as to conveniently and quickly detect the high-voltage distribution box and meet the needs of high-voltage distribution box performance detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic diagram of the overall structure of the utility model high-voltage distribution box detection data acquisition equipment;

[0022] Figure 2 This is a schematic diagram of the structure of the test board of the utility model;

[0023] Figure 3 This is the main view of the utility model high-voltage distribution box detection data acquisition device;

[0024] Figure 4 It is a top view of the high-voltage distribution box detection data acquisition device of the present utility model. DETAILED DESCRIPTION

[0025] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions of the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the described embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field are within the scope of protection of the present invention.

[0026] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0027] In one embodiment of the present invention, a high-voltage distribution box detection data acquisition device is provided.

[0028] In this embodiment, Figures 1 to 4 As shown, the detection equipment includes:

[0029] The box 1 is provided with a DC regulated power supply 2, an insulation withstand voltage tester 3, a programmable multimeter 4, a programmable power supply 5, a CAN box, an analog acquisition board, an industrial computer 6 and a test board to perform performance testing on at least two high-voltage distribution boxes to be tested arranged in the box 1;

[0030] A display 7 is provided on the top of the box 1 via an adjustable bracket 8 and exchanges information with the industrial computer 6;

[0031] Among them, the DC regulated power supply 2, insulation voltage tester 3, programmable multimeter 4, programmable power supply 5, CAN box, and analog acquisition board are respectively connected to the test board, and the test board is connected to the industrial computer 6, which controls the operation of the test board; the test board is provided with a high-voltage resistance test port, an insulation test port, a line conduction test port, a relay pull-in / out test port, a current sensor current value reading port, a connection point voltage test port and a data acquisition port to realize the collection of multi-performance test data of the high-voltage distribution box, so as to provide accurate test data for subsequent tests.

[0032] In the above embodiment, if Figure 2 As shown, each high-voltage distribution box to be tested includes a housing, a positive electrode, a negative electrode, multiple high-voltage sampling connectors, and multiple low-voltage connectors. The high-voltage distribution box is also equipped with multiple interfaces, including internal installation interfaces, communication interfaces, data acquisition interfaces, and power supply interfaces.

[0033] In the above embodiment, the insulation withstand voltage tester 3 is switched and connected to each high-voltage distribution box via a relay. The insulation withstand voltage tester 3 is electrically connected to the housing, positive terminal, and negative terminal of the high-voltage distribution box to test the insulation withstand voltage of the high-voltage distribution box. The insulation withstand voltage test value is transmitted to the test board via the high-voltage test port and the insulation test port.

[0034] The insulation and withstand voltage tester 3 includes a ground terminal and a high voltage terminal. The ground terminal of the insulation and withstand voltage tester 3 is electrically connected to the housing of the high voltage distribution box.

[0035] When in use, the insulation withstand voltage test is carried out when the high-voltage distribution box is powered on: the insulation withstand voltage meter 3 measures the leakage current of the shell of the high-voltage distribution box and the circuits that are not electrically connected to each other; the dielectric strength between the shell (that is, the terminal block to the ground) and the circuits that are not electrically connected to each other should be able to withstand the high voltage test within the specified time to be qualified.

[0036] The insulation test is carried out when the high-voltage distribution box is in the power-off state: the insulation resistance between the live circuit in the high-voltage distribution box and the ground (shell) is measured; the insulation resistance between the live circuit in the high-voltage distribution box and the ground should be no less than the specified value to be judged as qualified.

[0037] In the above embodiment, the analog quantity acquisition board is electrically connected to the current sensor interface and the internal installation interface of the high-voltage distribution box, so as to realize the current and temperature detection of the high-voltage distribution box, and transmit the detection value to the test board through the current sensor current value reading port.

[0038] In this embodiment, the test board is also provided with an acquisition plug-in; the acquisition plug-in includes a voltage acquisition pin, the acquisition plug-in is electrically connected to the analog acquisition board, and the voltage acquisition pin is electrically connected to the acquisition interface of the high-voltage distribution box.

[0039] When in use, the current sensor is tested by connecting a fixed current to the high-voltage distribution box circuit, connecting the output of the current sensor to the input of the analog input board, and reading the current value through the industrial computer 6. If the current value is equal to the fixed value, it is qualified. If the high-voltage distribution box contains a CAN module, the current sensor current value can be read through the CAN box by sending CAN messages.

[0040] In the above embodiment, the CAN box is electrically connected to the communication interface of the high-voltage distribution box to control the high-voltage distribution box relay to be closed and closed, and transmit the detection results to the test board through the relay closing / opening test port.

[0041] Among them, the CAN box is switched in turn through the CAN to IO module and the relay, and then connected to the communication interface of each high-voltage distribution box.

[0042] During operation, the relay closing / opening test is performed by referring to the electrical schematic diagram of the high-voltage distribution box of each vehicle model, adjusting the power supply output value to the corresponding relay operating voltage. When the relay is disconnected, the contacts should be able to operate quickly when the input voltage rises to the closing voltage; when the relay is closed, the contacts should be able to operate quickly when the input voltage drops to the opening voltage. The vehicle is considered qualified if both of these actions are met.

[0043] If the high-voltage distribution box contains a CAN module, the CAN box can be used to control the closing and opening tests of the relay by sending CAN messages.

[0044] In the above embodiment, the DC regulated power supply 2 is electrically connected to the power supply interface of the high-voltage distribution box to power the box. The programmable power supply 5 is used to provide constant voltage and constant current to the high-voltage distribution box. The programmable multimeter 4 measures the voltage at the sampling point of the high-voltage distribution box's acquisition interface via the voltage acquisition pin and transmits the measured value to the test board via the connection point voltage test port and the line continuity test port.

[0045] In this embodiment, the DC regulated power supply 2 is a 220V DC power supply, which is output after passing through a 12V adapter and a 5V adapter respectively, and is switched in turn through a CAN to IO module and a relay before being transmitted to each high-voltage distribution box.

[0046] When in use, the circuit continuity test is designed with reference to the electrical principle of the high-voltage distribution box. The power supply of each relay is connected in turn to test whether the corresponding circuit is conductive. If all are conductive, it is qualified.

[0047] The connection point voltage test is carried out when the high-voltage distribution box is powered on: use a programmable multimeter 4 to measure the voltage value of the high-voltage distribution box. If it meets the design requirements, it is qualified.

[0048] In the above embodiments, Figure 3 、 Figure 4 As shown, at least two high-voltage distribution box test benches are located within the housing 1 to accommodate the high-voltage distribution boxes. A tooling trolley 16 is provided on the side of the housing 1. Adjustable fixtures 9 are installed within the tooling trolley 16 to accommodate distribution boxes of varying sizes. The tooling trolley 16 can store power cords, current clamps, and other wiring. A wiring harness port 14 is also provided on the sidewall of the tooling trolley 16 to facilitate wiring storage.

[0049] Among them, the adjustable clamp 9 is made of insulating material, and the X and Y distances of the clamp are adjusted by adjusting the tightness of the bolts on both sides (the minimum is 100*300; the maximum is 200*600) to adapt to distribution boxes of different sizes.

[0050] Among them, a hook is provided on the high-voltage distribution box test bench, which is located on the side end surface of the high-voltage distribution box test bench and is used to store the wiring harness.

[0051] In this embodiment, insulating handrails 10 are respectively provided on the rear side of the box body 1 and the rear side of the tooling trolley 16 to facilitate movement; universal wheels 15 are provided at the bottom of the box body 1 to facilitate movement.

[0052] In this embodiment, a control panel is provided on the front side of the box body 1 , and a power switch 11 connected to the industrial computer 6 , an indicator light 12 and an emergency stop button 13 are provided on the control panel.

[0053] In summary, when the present invention is used, a trolley-type cabinet is adopted to complete the test data required for the following functional tests: high voltage resistance test, insulation test, line conduction test, relay pull-in / out test, current sensor current value reading, connection point voltage test and data collection, etc.

[0054] The equipment of this utility model has strong integration, simple operation and rich functions. On the basis of meeting user needs, it also has the following characteristics: the detection data acquisition equipment can meet the detection needs of various high-voltage distribution box products; operation prompt information is displayed on the display interface; the wiring harness adopts quick plug docking, and wiring is convenient and fast.

[0055] High-voltage distribution box detection data acquisition equipment is mainly used to meet the functional testing of high-voltage distribution boxes. The functional parameters of the detection equipment are as follows:

[0056]

[0057] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A high-voltage distribution box detection data acquisition device, characterized in that: include: A box is provided with a DC regulated power supply, an insulation withstand voltage tester, a programmable multimeter, a programmable power supply, a CAN box, an analog quantity acquisition board, an industrial computer and a test board to perform performance testing on at least two high-voltage distribution boxes to be tested arranged in the box; The display is set on the top of the box through an adjustable bracket and interacts with the industrial computer; Among them, the DC regulated power supply, insulation withstand voltage tester, programmable multimeter, programmable power supply, CAN box, and analog acquisition board are connected to the test board respectively, and the test board is connected to the industrial computer, which controls the operation of the test board; The test board is equipped with a high-voltage resistance test port, an insulation test port, a line conduction test port, a relay pull-in / out test port, a current sensor current value reading port, a connection point voltage test port and a data acquisition port to collect multi-performance test data of the high-voltage distribution box.

2. The high-voltage distribution box detection data acquisition device according to claim 1, characterized in that: Each high-voltage distribution box to be tested includes a shell, a positive pole, a negative pole, multiple high-voltage sampling connectors, and multiple low-voltage connectors; The high-voltage distribution box is also equipped with a variety of interfaces, including internal installation interface, communication interface, acquisition interface and power supply interface.

3. The high-voltage distribution box detection data acquisition device according to claim 1, characterized in that: The insulation withstand voltage tester is switched and connected with each high-voltage distribution box through a relay; The insulation withstand voltage tester is electrically connected to the shell, positive pole and negative pole of the high-voltage distribution box, and is used to test the insulation withstand voltage of the high-voltage distribution box, and transmit the insulation withstand voltage test value to the test board through the high-voltage test port and the insulation test port; wherein, the insulation withstand voltage tester includes a ground terminal and a high-voltage terminal, and the ground terminal of the insulation withstand voltage tester is connected to the shell of the high-voltage distribution box.

4. The high-voltage distribution box detection data acquisition device according to claim 1, characterized in that: The analog quantity acquisition board is electrically connected to the current sensor interface and the internal installation interface of the high-voltage distribution box to realize the current and temperature detection of the high-voltage distribution box, and transmit the detection value to the test board through the current sensor current value reading port; The test board is also provided with an acquisition pair plug-in; the acquisition pair plug-in includes a voltage acquisition pin, the acquisition pair plug-in is electrically connected to the analog acquisition board, and the voltage acquisition pin is electrically connected to the acquisition interface of the high-voltage distribution box.

5. The high-voltage distribution box detection data acquisition device according to claim 1, characterized in that: The CAN box is electrically connected to the communication interface of the high-voltage distribution box to control the on / off operation of the relay of the high-voltage distribution box and transmit the test results to the test board through the relay on / off test port; Among them, the CAN box is switched in turn through the CAN to IO module and the relay, and then connected to the communication interface of each high-voltage distribution box.

6. The high-voltage distribution box detection data acquisition device according to claim 1, characterized in that: The DC regulated power supply is electrically connected to the power supply interface of the high-voltage distribution box to power the high-voltage distribution box; the programmable power supply is used to provide constant voltage / constant current for the high-voltage distribution box; the programmable multimeter measures the sampling point voltage of the acquisition interface of the high-voltage distribution box through the voltage acquisition pin, and transmits the measured value to the test board through the connection point voltage test port and the line conduction test port.

7. The high-voltage distribution box detection data acquisition device according to claim 1, characterized in that: At least two high-voltage distribution box test benches are provided in the box for accommodating the high-voltage distribution box.

8. The high-voltage distribution box detection data acquisition device according to claim 7, characterized in that: A tooling trolley is provided on the side of the box, and an adjustable fixture is provided inside the tooling trolley to fix distribution boxes of different sizes on the high-voltage distribution box test bench; The work trolley can store wiring, and the side wall of the work trolley is also provided with a wiring harness opening for convenient wiring storage.

9. The high-voltage distribution box detection data acquisition device according to claim 7, characterized in that: A hook is provided on the high-voltage distribution box test bench, and the hook is located on the side end surface of the high-voltage distribution box test bench.

10. The high-voltage distribution box detection data acquisition device according to claim 8, characterized in that: Insulated handrails are provided on the rear side of the box and the rear side of the tooling trolley; universal wheels are provided at the bottom of the box for easy movement; A control panel is provided on the front side of the box body. The control panel is provided with a power switch, an indicator light and an emergency stop button connected to the industrial computer.

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