Insulation and voltage resistance testing device of automobile power battery management system

Abstract

The utility model discloses an insulation and voltage resistance testing device of an automobile power battery management system, which comprises a jig plate arranged on a testing platform of a box body, and a plug-in assembly comprising a connecting terminal, and the automobile power battery management system is placed on the jig plate. The connecting terminal is configured to be plugged with a connecting port of the automobile power battery management system during testing; the insulation and voltage withstanding tester is arranged in the box body, the insulation and voltage withstanding tester is electrically connected with the connecting terminal through a wire, and the insulation and voltage withstanding tester is configured to perform an insulation and voltage withstanding test on the automobile power battery management system when the connecting terminal is inserted into the connecting port of the automobile power battery management system; the connection terminal is connected with the insulation and voltage resistance tester through the wire, and the connection terminal is correspondingly plugged and conducted with the connection port on the automobile power battery management system, so that the automatic test function of the automobile power battery management system is realized.

Description

Technical Field

[0001] This application relates to the technical field of test equipment, and specifically relates to an insulation withstand voltage test device for an automotive power battery management system. Background Art

[0002] In the off-line test before leaving the factory, the BMS (BATTERY MANAGEMENT SYSTEM) battery management system must undergo insulation testing and even withstand voltage testing. The conventional test method in a laboratory is to insert a wire harness into the connection port of the BMS, then strip the insulation layer of the wire harness, twist all the low-voltage wires together, twist all the high-voltage wires together, clip the clips on the two high-voltage wire harnesses of the insulation withstand voltage test instrument onto the wire harness, and then manually operate the insulation withstand voltage test instrument to test the insulation withstand voltage of the BMS. This test method has low test efficiency, and due to the high voltage during the test, the test safety cannot be guaranteed. Summary of the Invention

[0003] To overcome the above-mentioned drawbacks, the purpose of this application is to provide an insulation withstand voltage test device for an automotive power battery management system, so as to effectively solve the above-mentioned technical problems.

[0004] To achieve the above purpose, this application adopts the following technical solution: An insulation withstand voltage test device for an automotive power battery management system, comprising:

[0005] A box body, on which a test platform is provided,

[0006] A jig board, which is arranged on the test platform of the box body, and the automotive power battery management system is placed on the jig board. The jig board is configured to position and fix the automotive power battery management system.

[0007] A plug-in component, the plug-in component includes connection terminals, and the connection terminals are configured to be plugged into the connection ports of the automotive power battery management system during testing;

[0008] An insulation withstand voltage tester, which is arranged inside the box body, and the insulation withstand voltage tester is electrically connected to the connection terminals through wires. The insulation withstand voltage tester is configured to perform insulation withstand voltage testing on the automotive power battery management system when the connection terminals are plugged into the connection ports of the automotive power battery management system.

[0009] Further, the plug-in component further includes a mounting plate, the connection terminals are arranged on the mounting plate and located above the jig board, and the mounting plate is connected to a lifting device. The mounting plate is configured to drive the connection terminals to move up and down.

[0010] Furthermore, the lifting device includes a telescopic member, a driving end of the telescopic member is fixedly connected to the mounting plate, the telescopic member is configured to drive the mounting plate to rise and fall, and the telescopic member is disposed in the box.

[0011] Furthermore, the mounting plate includes a first plate and a second plate, the second plate is arranged on the first surface of the first plate, the first surface is perpendicular to the upper surface of the jig plate, the connecting terminal is arranged on the second surface of the second plate, the second surface is parallel to the upper surface of the jig plate, and the driving end of the telescopic member is fixedly connected to the first plate.

[0012] Furthermore, a strip-shaped groove is formed on the first surface of the first plate, and the second plate is movably disposed in the strip-shaped groove.

[0013] Furthermore, two card slots are provided on both side walls of the strip-shaped groove, and two card blocks corresponding to the card slots are provided on the portion where the second plate is inserted into the strip-shaped groove, and the card blocks are inserted into the card slots.

[0014] Furthermore, a threaded hole is provided on the first plate, a screw is set in the threaded hole, the screw passes through the threaded hole from the top of the first plate and is placed in the strip groove, and the bottom of the screw abuts against the part of the second plate inserted into the strip groove.

[0015] Furthermore, a plurality of positioning pins are provided on the jig plate, and the positioning pins are distributed in a rectangular shape, and the positioning pins are arranged corresponding to the positioning holes on the automotive power battery management system.

[0016] Furthermore, the test platform is placed in a test cavity provided on the box body, transparent glass is provided on the first side and the second side of the test cavity, and a display is provided on the back of the test cavity.

[0017] Furthermore, it also includes a main controller, an operating keyboard and control buttons,

[0018] The control buttons include a test button, a switch button and an emergency stop button, and the test button, the switch button and the emergency stop button are all arranged on the surface of the box.

[0019] The box body is further provided with a first cabinet body, a second cabinet body and a third cabinet body, wherein:

[0020] The first cabinet is configured to accommodate the operation keyboard, the second cabinet is configured to accommodate the main controller, and the third cabinet is configured to accommodate the insulation and voltage tester.

[0021] Beneficial effects

[0022] An insulation withstand voltage testing device for an automotive power battery management system designed in this solution is provided with connection terminals that are butt - plugged into the connection ports of the battery management system, and the connection terminals are electrically connected to the insulation withstand voltage tester through wires. Integrating the two on one device can achieve that when the connection terminals are correspondingly plugged into the connection ports, the insulation withstand voltage tester is electrically connected to the battery management system, thereby realizing the automatic testing function of the insulation withstand voltage of the battery management system, improving the testing efficiency, and ensuring the safety of the testing process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The drawings are used to provide an understanding of the technical solutions of the present disclosure and form a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the technical solutions of the present disclosure and do not constitute a limitation to the technical solutions of the present disclosure. The shapes and sizes of the components in the drawings do not reflect the actual proportions, and the purpose is only to schematically illustrate the content of this application.

[0024] Figure 1 It is a schematic structural diagram of the insulation withstand voltage testing device according to an embodiment of this application.

[0025] Figure 2 It is a front view of the insulation withstand voltage testing device according to an embodiment of this application.

[0026] Figure 3 It is a schematic partial structural diagram of the insulation withstand voltage testing device according to an embodiment of this application.

[0027] Figure 4 It is a partial structural sectional view of the insulation withstand voltage testing device according to an embodiment of this application.

[0028] In the above drawings, 1. Cabinet; 2. Test platform; 3. Display; 4. First side; 5. Second side; 6. Fixture board; 7. Positioning pin; 8. Connection terminal; 9. First cabinet body; 10. Second cabinet body; 11. Third cabinet body; 12. Test button; 13. Switch button; 14. Emergency stop button; 15. Telescopic member; 16. First plate member; 17. Second plate member; 100. First surface; 200. Second surface; 18. Strip - shaped groove; 19. Card slot; 20. Block; 21. Screw; D. Battery management system. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0029] The above - mentioned solution will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are for illustrating the present application and not for limiting the scope of the present application. The implementation conditions adopted in the embodiments can be further adjusted according to the conditions of specific manufacturers, and the implementation conditions not specified are usually the conditions in conventional experiments.

[0030] Unless otherwise defined, the technical terms or scientific terms used in the embodiments of the present disclosure should have the usual meanings understood by people with ordinary skills in the field to which this application belongs. The "first", "second" and similar words used in the embodiments of the present disclosure do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. In this article, "electrical connection" includes the situation where constituent elements are connected together through an element with some electrical function. "Element with some electrical function" is not particularly limited as long as it can transfer electrical signals between connected constituent elements. "Element with some electrical function" can be, for example, an electrode or wiring, or a switching element such as a transistor, or other functional elements such as a resistor, inductor or capacitor. “Up,” “down,” “left,” “right,” etc. are only used to indicate relative positional relationships. When the absolute position of the object being described changes, the relative positional relationship may also change accordingly.

[0031] In this application, terms such as "upper," "lower," "inner," and "middle" indicate positions or locations based on those shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to specific positions, or to their construction or operation in a specific position.

[0032] As described in the background technology, the conventional test method for the insulation and withstand voltage test of the battery management system is to plug a wiring harness into the connection port of the BMS, then strip the insulation layer of the wiring harness, twist all the low-voltage wires together, twist all the high-voltage wires together, clamp the wiring harness with the clips on the two high-voltage wire harnesses of the insulation and withstand voltage test instrument, and then manually operate the insulation and withstand voltage test instrument to test the insulation and withstand voltage of the BMS; this manual testing method is inefficient and has a low safety factor.

[0033] Therefore, the inventor designed an insulation voltage withstand test device for an automotive power battery management system in view of the above. This test device can realize the automatic insulation voltage withstand test of the battery management system, and it includes: a box body, on which a test platform is provided; a fixture plate, which is arranged on the test platform of the box body, and the automotive power battery management system is placed on the fixture plate. The fixture plate is configured to position and fix the automotive power battery management system; a plug-in component, which includes connection terminals, and the connection terminals are configured to be plugged into the connection ports of the automotive power battery management system during the test; an insulation voltage withstand tester, which is arranged in the box body, and the insulation voltage withstand tester is electrically connected to the connection terminals through wires. The insulation voltage withstand tester is configured to perform an insulation voltage withstand test on the automotive power battery management system when the connection terminals are plugged into the connection ports of the automotive power battery management system.

[0034] This test device is provided with connection terminals that are docked and plugged into the connection ports of the battery management system, and the connection terminals are electrically connected to the insulation voltage withstand tester through wires. By integrating the two on one device, when the connection terminals are correspondingly plugged into the connection ports, the insulation voltage withstand tester and the battery management system are electrically conducted, so as to realize the automatic insulation voltage withstand test function of the battery management system, improve the test efficiency, and ensure the safety of the test process.

[0035] Next, an exemplary description of the solution of this application will be given in combination with the attached Figures 1-4 drawings.

[0036] An embodiment of this application discloses an insulation voltage withstand test device for an automotive power battery management system, as Figure 1 shown. This test device includes:

[0037] A box body 1, the box body 1 is of a cabinet structure. There is a test chamber on the box body 1. The test chamber includes a test platform 2. Transparent glasses are installed on the first side 4 and the second side 5 of the test chamber for easy observation during the test. A display 3 is arranged on the back of the test chamber, and the display 3 can display the test results for the operator to view the test results.

[0038] A fixture plate 6, the fixture plate 6 is installed on the test platform 2 and is located inside the test chamber. A plurality of positioning pins 7 distributed in a rectangular shape are arranged on the surface of the fixture plate 6. The positioning pins 7 correspond to the positioning holes of the battery management system D. During the test, the battery management system D to be tested is placed on the fixture plate 6 and is positioned and fixed through the positioning pins 7.

[0039] Plug-in component, which includes connection terminal 8. The connection terminal 8 is docked with the port of the battery management system D to achieve electrical conduction. In some embodiments, the plug-in component includes, but is not limited to, electrode plates, gold fingers, PIN pins, or other structures that can achieve electrical conduction.

[0040] Insulation withstanding voltage tester, which is arranged in the box body 1. The insulation withstanding voltage tester is electrically connected to the connection terminal 8 through a high-voltage wire. In some embodiments, the wiring between the insulation withstanding voltage tester and the connection terminal 8 is realized inside the box body 1, thereby improving the safety of the equipment during the testing process and avoiding the risk of electric shock for the operator during operation. The insulation withstanding voltage test of the automotive power battery management system D is realized through the insulation withstanding voltage tester.

[0041] Main controller (not shown in the figure), operation keyboard (not shown in the figure), and control buttons. The control buttons include a test button 12, a switch button 13, and an emergency stop button 14. Pressing the test button 12 can complete the automatic test action of the equipment during testing. The switch button 13 is used when the equipment is turned on or off. The emergency stop button 14 can be immediately pressed in case of an emergency to disconnect all power supplies of the equipment and stop the test equipment urgently.

[0042] As Figure 2 shown, a first cabinet 9, a second cabinet 10, and a third cabinet 11 are arranged on the box body 1. The operation keyboard is placed in the first cabinet 9, and the operation keyboard is used to control the controller (including the PC) of the equipment. The main controller, including the PC, which is used to control the operation of the entire equipment, is placed in the second cabinet 10. The insulation withstanding voltage tester is placed in the third cabinet 11, and the insulation withstanding voltage tester and the connection terminal 8 realize hidden wiring inside the box body 1.

[0043] The plug-in component further includes a mounting plate, which is used to mount the connection terminal 8. At the same time, the mounting plate is connected to the lifting drive device, and the lifting drive device drives the mounting plate to lift, so as to realize the docking of the connection terminal 8 with the port of the battery management system D. During testing, the battery management system D is placed on the jig plate 6 for positioning and fixing. At this time, the connection terminal 8 above the jig plate 6 corresponds to the port of the battery management system D up and down. Then the lifting drive device drives the mounting plate to descend, and the connection terminal 8 on the mounting plate descends to dock with the port of the battery management system D.

[0044] In some embodiments, the lifting drive device is a telescopic member 15 with a telescopic function. The telescopic member 15 includes, but is not limited to, a cylinder, a linear drive motor, etc. The mounting plate is fixedly connected to the acting end (driving end) of the telescopic member 15 to drive the mounting plate to lift.

[0045] In some embodiments, as Figure 3As shown in the figure, the mounting plate includes a first plate member 16 and a second plate member 17. The second plate member 17 is disposed on the first surface 100 of the first plate member 16. The first surface 100 is perpendicular to the upper surface of the jig plate 6. The connection terminal 8 is disposed on the second surface 200 of the second plate member 17. The second surface 200 is parallel to the upper surface of the jig plate 6. The driving end of the telescopic member 15 is fixedly connected to the first plate member 16. A strip-shaped groove 18 is formed on the first surface 100 of the first plate member 16. The second plate member 17 is inserted into the strip-shaped groove 18 and can be translated in the strip-shaped groove 18. The position of the connection terminal 8 is adjusted by translating the second plate member 17. When the connection terminal 8 and the port of the battery management system D are not vertically aligned, the position of the connection terminal 8 can be adjusted by moving the second plate member 17, so that the connection terminal 8 and the port of the battery management system DD are vertically aligned.

[0046] In some embodiments, two card slots 19 are formed on the two side wall surfaces in the strip-shaped groove 18. Two card blocks 20 corresponding to the card slots 19 are disposed on the portion of the second plate member 17 inserted into the strip-shaped groove 19. The card blocks 20 are inserted into the card slots 19 to insert the second plate member 17 into the strip-shaped groove 18 to prevent it from falling off.

[0047] In some embodiments, as Figure 4 shown, a threaded hole is formed on the first plate member 16. A screw 21 is disposed in the threaded hole. The screw 21 passes through the threaded hole from the top of the first plate member 16 and is placed in the strip-shaped groove 18. The bottom of the screw 21 abuts against the portion of the second plate member 17 inserted into the strip-shaped groove 19. The screw 21 can press the portion of the second plate member 17 inserted into the strip-shaped groove 18 to prevent the second surface 200 from being displaced and unable to be vertically aligned with the port of the battery management system D. When the second plate member 17 needs to be translated, the screw 21 can be loosened from the second plate member 17 by screwing the nut on the head of the screw 21. After the position of the second plate member 17 is adjusted, the screw 21 can be tightened again.

[0048] The above embodiments are only for illustrating the technical concept and features of the present application. The purpose is to enable those who are familiar with this technology to understand the content of the present application and implement it accordingly, and it cannot be used to limit the protection scope of the present application. Any equivalent transformation or modification made in the spirit of the present application should be covered within the protection scope of the present application.

Claims

1. An insulation withstand voltage test device for an automotive power battery management system, characterized in that: Comprising: A box body, on which a test platform is provided. A jig plate, which is arranged on the test platform of the box body. The automotive power battery management system is placed on the jig plate, and the jig plate is configured to position and fix the automotive power battery management system. A plug-in component, which includes a connection terminal configured to be plugged into the connection port of the automotive power battery management system during testing. An insulation withstand voltage tester, which is arranged inside the box body and is electrically connected to the connection terminal through a wire. The insulation withstand voltage tester is configured to perform an insulation withstand voltage test on the automotive power battery management system when the connection terminal is plugged into the connection port of the automotive power battery management system.

2. The insulation withstand voltage test device for an automotive power battery management system according to claim 1, characterized in that: The plug-in component further includes a mounting plate. The connection terminal is arranged on the mounting plate and is located above the jig plate. The mounting plate is connected to a lifting device and is configured to drive the connection terminal to move up and down.

3. The insulation withstand voltage test device for an automotive power battery management system according to claim 2, characterized in that: The lifting device includes a telescopic member. The driving end of the telescopic member is fixedly connected to the mounting plate and is configured to drive the mounting plate to move up and down. The telescopic member is arranged inside the box body.

4. The insulation withstand voltage test device for an automotive power battery management system according to claim 3, characterized in that: The mounting plate includes a first plate member and a second plate member. The second plate member is arranged on the first surface of the first plate member. The first surface is perpendicular to the upper surface of the jig plate. The connection terminal is arranged on the second surface of the second plate member. The second surface is parallel to the upper surface of the jig plate. The driving end of the telescopic member is fixedly connected to the first plate member.

5. The insulation withstand voltage test device for an automotive power battery management system according to claim 4, characterized in that: A strip-shaped groove is formed on the first surface of the first plate member, and the second plate member is movably arranged in the strip-shaped groove.

6. The insulation withstand voltage test device for an automotive power battery management system according to claim 5, characterized in that: Two card slots are formed on the two side wall surfaces inside the strip-shaped groove. Two card blocks corresponding to the card slots are arranged on the part of the second plate member inserted into the strip-shaped groove, and the card blocks are inserted into the card slots.

7. The insulation withstand voltage test device for an automotive power battery management system according to claim 5, characterized in that: A threaded hole is formed on the first plate member, and a screw is arranged in the threaded hole. The screw passes through the threaded hole from the top of the first plate member and is placed inside the strip-shaped groove, and the bottom of the screw abuts against the part of the second plate member inserted into the strip-shaped groove.

8. The insulation withstand voltage test device for an automotive power battery management system according to claim 1, characterized in that: A number of positioning pins are provided on the jig plate, and the positioning pins are arranged in a rectangular distribution. The positioning pins are correspondingly arranged with the positioning holes on the automotive power battery management system.

9. The insulation withstanding voltage test device for the automotive power battery management system according to claim 1, wherein: The test platform is placed in a test cavity provided on the box body. Transparent glasses are provided on the first side and the second side of the test cavity, and a display is provided on the back of the test cavity.

10. The insulation withstanding voltage test device for the automotive power battery management system according to claim 1, wherein: It further includes a main controller, an operation keyboard and control buttons. The control buttons include a test button, a switch button and an emergency stop button, and the test button, the switch button and the emergency stop button are all arranged on the surface of the box body. A first cabinet, a second cabinet and a third cabinet are further provided on the box body, wherein: The first cabinet is configured to accommodate the operation keyboard, the second cabinet is configured to accommodate the main controller, and the third cabinet is configured to accommodate the insulation withstanding voltage tester.

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