Laminated busbar quality detection device

Abstract

The utility model discloses a laminated busbar quality detection device, which relates to the field of busbar detection and comprises a workbench, a vertical plate is fixedly mounted on the upper surface of the workbench, a transverse plate is fixedly mounted at the top end of the vertical plate, a motor is fixedly mounted on the upper surface of the transverse plate, and a lead screw is fixedly mounted at the output end of the motor. One end of the lead screw is rotationally connected with the workbench. According to the utility model, the height detection assembly and the lifting plate are arranged, the motor drives the screw rod to rotate, the screw rod nut drives the lifting plate to move downwards, the laser sensor fixed on the lifting plate moves downwards synchronously, and the distance between the laser sensor and the surface of the busbar body is measured continuously; the detection value of the pressure sensor rises, the controller monitors the pressure value in real time, when the detection value exceeds a preset threshold value, the motor stops running immediately, the controller reads measurement data of the laser sensor, and the actual height of the busbar body is obtained by calculating the difference value between the initial height and the displacement of the laser sensor.

Description

Technical Field

[0001] This utility model relates to the field of busbar testing technology, and in particular to a device for testing the quality of stacked busbars. Background Technology

[0002] Laminated busbars are key electrical connection components used in power electronic devices, primarily for achieving efficient and compact current transmission. Their design was inspired by the limitations of traditional busbars, optimizing current distribution and reducing space occupation through the stacking of multiple conductive materials and the alternating arrangement of insulating layers. In the early days of power electronics technology, traditional busbars, due to their simple structure, were prone to generating significant parasitic inductance and electromagnetic interference in high-power or high-frequency applications, affecting system performance. As power electronic devices have evolved towards higher power density and higher integration, laminated busbars have emerged as essential components in modern new energy, electric vehicles, and industrial frequency conversion fields.

[0003] As a key integrated conductive component in power electronic systems, the high precision control of laminated busbars directly affects the compatibility of equipment assembly and long-term operational reliability. With the development of power electronic equipment towards high power density, the requirements for structural precision in modular design are becoming increasingly stringent. The assembly interference problem caused by the accumulation of thickness tolerances in traditional busbars is becoming more and more prominent. Against this background, height detection has become an indispensable process in the manufacturing of laminated busbars. However, the traditional method of busbar height detection is to measure each one manually using tools such as vernier calipers or micrometers. This method is not only inefficient, but the measurement accuracy is also easily affected by human factors, making it difficult to meet the high quality and high efficiency requirements of modern industrial production. In view of this, this application proposes a laminated busbar quality detection device based on the above-mentioned technical problems. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a quality detection device for stacked busbars.

[0005] To achieve the above objectives, the present invention adopts the following technical solution:

[0006] A quality inspection device for stacked busbars includes a workbench, a vertical plate fixedly installed on the upper surface of the workbench, a horizontal plate fixedly installed at the top of the vertical plate, a motor fixedly installed on the upper surface of the horizontal plate, a lead screw fixedly installed at the output end of the motor, one end of the lead screw being rotatably connected to the workbench, a lead screw nut threaded onto the lead screw, a lifting plate fixedly installed outside the lead screw nut, a height detection component being provided on the lifting plate, a control box fixedly installed on the upper surface of the horizontal plate, a controller being provided inside the control box, and a display screen being provided on the control box;

[0007] The height detection component includes a laser sensor fixedly mounted on the side of the lifting plate, the laser sensor being electrically connected to the display screen, an mounting plate fixedly mounted on the front side of the lifting plate, a fixed cylinder fixedly mounted on the mounting plate, a connecting rod slidably mounted inside the fixed cylinder, a fixed ring fixedly mounted on the outside of the connecting rod, a spring fixedly mounted between the fixed ring and the fixed cylinder, a pressure sensor fixedly mounted at the bottom of the connecting rod, and a busbar body disposed below the pressure sensor.

[0008] Furthermore, a support platform is fixedly installed on the upper surface of the workbench, and the busbar body is located on the support platform.

[0009] Furthermore, a limiting frame is fixedly installed on the upper surface of the worktable. The limiting frame is U-shaped and forms an opening facing the front of the worktable.

[0010] Furthermore, the opening is chamfered.

[0011] Furthermore, an abutment block is fixedly installed on the upper surface of the lifting plate, and a limit switch is fixedly installed on one side of the vertical plate. The limit switch is electrically connected to the motor.

[0012] Furthermore, a diagonal brace is fixedly installed between the vertical plate and the workbench.

[0013] Furthermore, two symmetrical guide rods are fixedly installed between the horizontal plate and the worktable, and a linear bearing is fixedly installed on the lifting plate, with the linear bearing slidably installed outside the guide rods.

[0014] The beneficial effects of this utility model are as follows:

[0015] 1. This utility model, by setting up a height detection component and a lifting plate, starts a motor, which drives the lead screw to rotate, thereby causing the lead screw nut to move the lifting plate downward. During this process, the laser sensor fixed on the lifting plate moves downward synchronously, continuously measuring the distance to the surface of the busbar body. When the pressure sensor at the bottom of the connecting rod contacts the surface of the busbar body, the reaction force of the busbar body causes the connecting rod to compress the spring upward, and the pressure sensor detection value rises accordingly. The controller monitors the pressure value in real time. When the detection value exceeds the preset threshold, the motor stops running immediately. At this time, the controller reads the measurement data of the laser sensor, calculates the difference between the initial height of the laser sensor and the displacement, accurately determines the actual height of the busbar body, and displays the result on the display screen.

[0016] 2. This utility model, by setting up a support base, a limiting frame, and a spring, allows the operator to first push the busbar body to be tested into the opening of the limiting frame, so that it is placed stably on the upper surface of the support platform. The chamfer design at the opening of the limiting frame ensures that the busbar body can be quickly and accurately positioned. The support platform can support the busbar body and prevent it from being compressed and deformed. When the pressure sensor moves down and comes into contact with the busbar body, the compression of the spring buffers the process of applying pressure to the busbar body, preventing damage to the busbar body due to excessive pressure. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of a stacked busbar quality detection device proposed in this utility model;

[0018] Figure 2 This is a schematic diagram of the installation of the laser sensor on the lifting plate of the stacked busbar quality detection device proposed in this utility model;

[0019] Figure 3 This is a side view schematic diagram of a stacked busbar quality detection device proposed in this utility model;

[0020] Figure 4 This utility model proposes a quality detection device for stacked busbars. Figure 3 Enlarged view of a portion of point A in the middle;

[0021] Figure 5 This is a schematic diagram of the busbar body of a stacked busbar quality detection device proposed in this utility model.

[0022] In the diagram: 1. Workbench; 2. Vertical plate; 3. Horizontal plate; 4. Motor; 5. Lead screw; 6. Lead screw nut; 7. Lifting plate; 8. Control box; 9. Display screen; 10. Laser sensor; 11. Mounting plate; 12. Fixed cylinder; 13. Connecting rod; 14. Fixed ring; 15. Spring; 16. Pressure sensor; 17. Busbar body; 18. Support platform; 19. Limit frame; 20. Opening; 21. Contact block; 22. Limit switch; 23. Diagonal brace; 24. Guide rod; 25. Linear bearing. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0024] Reference Figure 1-4A quality inspection device for stacked busbars includes a workbench 1, a vertical plate 2 fixedly installed on the upper surface of the workbench 1, a horizontal plate 3 fixedly installed at the top of the vertical plate 2, a motor 4 fixedly installed on the upper surface of the horizontal plate 3, a lead screw 5 fixedly installed at the output end of the motor 4, one end of the lead screw 5 being rotatably connected to the workbench 1, a lead screw nut 6 threaded onto the lead screw 5, a lifting plate 7 fixedly installed outside the lead screw nut 6, a height detection component being provided on the lifting plate 7, a control box 8 fixedly installed on the upper surface of the horizontal plate 3, a controller being provided inside the control box 8, and a display screen 9 being provided on the control box 8;

[0025] The height detection assembly includes a laser sensor 10 fixedly mounted on the side of the lifting plate 7. The laser sensor 10 is electrically connected to the display screen 9. An installation plate 11 is fixedly mounted on the front side of the lifting plate 7. A fixing cylinder 12 is fixedly mounted on the installation plate 11. A connecting rod 13 is slidably mounted inside the fixing cylinder 12. A fixing ring 14 is fixedly mounted on the outside of the connecting rod 13. A spring 15 is fixedly mounted between the fixing ring 14 and the fixing cylinder 12. A pressure sensor 16 is fixedly mounted at the bottom of the connecting rod 13. A busbar body 17 is provided below the pressure sensor 16.

[0026] Motor 4 is started, which drives lead screw 5 to rotate. This causes lead screw nut 6 to move lifting plate 7 downward. During this process, laser sensor 10, which is fixed on lifting plate 7, moves downward synchronously and continuously measures the distance to the surface of busbar body 17. When pressure sensor 16 at the bottom of connecting rod 13 contacts the surface of busbar body 17, the reaction force of busbar body 17 causes connecting rod 13 to compress spring 15 upward. The pressure sensor 16 then increases its detection value. The controller monitors the pressure value in real time. When the detection value exceeds the preset threshold, motor 4 is stopped immediately. At this time, the controller reads the measurement data of laser sensor 10 and calculates the difference between the initial height and displacement of laser sensor 10 to accurately determine the actual height of busbar body 17. The result is then displayed on display screen 9.

[0027] Reference Figure 1 , Figure 5 Specifically: a support platform 18 is fixedly installed on the upper surface of the workbench 1, and the busbar body 17 is located on the support platform 18.

[0028] Reference Figure 1 , Figure 5 Specifically: A limiting frame 19 is fixedly installed on the upper surface of the workbench 1. The limiting frame 19 is U-shaped and forms an opening 20 facing the front of the workbench 1. The operator first pushes the busbar body 17 to be tested into the opening 20 of the limiting frame 19, so that it is placed stably on the upper surface of the support platform 18. The support platform 18 can support the busbar body 17 and prevent the busbar body 17 from being pressed and deformed.

[0029] Reference Figure 5 Specifically: a chamfer is provided at the opening 20, and the chamfer design at the opening 20 of the limiting frame 19 ensures that the busbar body 17 can be positioned quickly and accurately.

[0030] Reference Figure 3 Specifically: a contact block 21 is fixedly installed on the upper surface of the lifting plate 7, and a limit switch 22 is fixedly installed on one side of the vertical plate 2. The limit switch 22 is electrically connected to the motor 4. The contact block 21 on the lifting plate 7 cooperates with the limit switch 22 to realize the initial position calibration of the device, and the lifting plate 7 returns to the initial position after reset.

[0031] Reference Figure 3 Specifically, a diagonal brace 23 is fixedly installed between the vertical plate 2 and the workbench 1, which enhances the rigidity of the vertical plate 2 and effectively suppresses the impact of vibration on measurement accuracy.

[0032] Reference Figure 1 , Figure 3 Specifically: two symmetrical guide rods 24 are fixedly installed between the horizontal plate 3 and the worktable 1. A linear bearing 25 is fixedly installed on the lifting plate 7. The linear bearing 25 is slidably installed outside the guide rods 24 to ensure the vertical movement accuracy of the lifting plate 7 and to prevent the lead screw 5 from bearing radial force.

[0033] Working principle: The operator first pushes the busbar body 17 to be tested into the opening 20 of the limiting frame 19, so that it is placed stably on the upper surface of the support platform 18. The chamfer design at the opening 20 of the limiting frame 19 ensures that the busbar body 17 can be positioned quickly and accurately. The support platform 18 can support the busbar body 17 and prevent the busbar body 17 from being pressed and deformed.

[0034] Motor 4 is started, and motor 4 drives lead screw 5 to rotate, thereby lead screw nut 6 drives lifting plate 7 to move downward. During this process, laser sensor 10 fixed on lifting plate 7 moves downward synchronously and continuously measures the distance to the surface of busbar body 17. When pressure sensor 16 at the bottom of connecting rod 13 contacts the surface of busbar body 17, the reaction force of busbar body 17 causes connecting rod 13 to compress spring 15 upward, and the detection value of pressure sensor 16 rises accordingly. The controller monitors the pressure value in real time. When the detection value exceeds the preset threshold, motor 4 is stopped immediately. At this time, the controller reads the measurement data of laser sensor 10, calculates the difference between the initial height of laser sensor 10 and the displacement, accurately obtains the actual height of busbar body 17, and displays the result on display screen 9.

[0035] The device adopts a structural design that combines guide rod 24 with linear bearing 25 to ensure the vertical movement accuracy of lifting plate 7 and avoid radial force on lead screw 5. The setting of diagonal brace 23 enhances the rigidity of vertical plate 2 and effectively suppresses the influence of vibration on measurement accuracy. The contact block 21 set on lifting plate 7 cooperates with limit switch 22 to realize the initial position calibration of the device and the return of lifting plate 7 to the initial position after reset.

[0036] The entire detection process achieves accurate measurement of the height of the busbar body 17 through the coordinated work of pressure sensor 16 and laser sensor 10. Pressure sensor 16 provides contact judgment, and laser sensor 10 is responsible for displacement measurement. The combination of the two ensures measurement accuracy and effectively prevents busbar deformation caused by overpressure. The design of the spring 15 buffer structure further protects pressure sensor 16 and extends the service life of the device.

[0037] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.

[0038] In the description of this patent, it should be understood that the terms “center,” “upper,” “lower,” “front,” “back,” “left,” “right,” “vertical,” “horizontal,” “top,” “bottom,” “inner,” and “outer,” etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this patent and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this patent.

Claims

1. A stacked busbar quality detection device characterized by comprising: The system includes a workbench (1), a vertical plate (2) fixedly installed on the upper surface of the workbench (1), a horizontal plate (3) fixedly installed at the top of the vertical plate (2), a motor (4) fixedly installed on the upper surface of the horizontal plate (3), a lead screw (5) fixedly installed at the output end of the motor (4), one end of the lead screw (5) being rotatably connected to the workbench (1), a lead screw nut (6) threaded on the lead screw (5), a lifting plate (7) fixedly installed on the outside of the lead screw nut (6), a height detection component being provided on the lifting plate (7), a control box (8) fixedly installed on the upper surface of the horizontal plate (3), a controller being provided inside the control box (8), and a display screen (9) being provided on the control box (8). The height detection component includes a laser sensor (10) fixedly installed on the side of the lifting plate (7), the laser sensor (10) being electrically connected to the display screen (9), an mounting plate (11) fixedly installed on the front side of the lifting plate (7), a fixing cylinder (12) fixedly installed on the mounting plate (11), a connecting rod (13) slidably installed inside the fixing cylinder (12), a fixing ring (14) fixedly installed outside the connecting rod (13), a spring (15) fixedly installed between the fixing ring (14) and the fixing cylinder (12), a pressure sensor (16) fixedly installed at the bottom of the connecting rod (13), and a busbar body (17) provided below the pressure sensor (16).

2. The device for detecting quality of a laminated female panel according to claim 1, wherein A support platform (18) is fixedly installed on the upper surface of the workbench (1), and the busbar body (17) is located on the support platform (18).

3. The quality detection device for laminated busbars according to claim 1, characterized in that, A limiting frame (19) is fixedly installed on the upper surface of the workbench (1). The limiting frame (19) is U-shaped and forms an opening (20) facing the front of the workbench (1).

4. The laminated busbar quality detection device according to claim 3, characterized in that, The opening (20) is chamfered.

5. The laminated busbar quality detection device according to claim 1, characterized in that, A contact block (21) is fixedly installed on the upper surface of the lifting plate (7), and a limit switch (22) is fixedly installed on one side of the vertical plate (2). The limit switch (22) is electrically connected to the motor (4).

6. The quality detection device for laminated busbars according to claim 1, characterized in that, A diagonal brace (23) is fixedly installed between the vertical plate (2) and the workbench (1).

7. The quality detection device for laminated busbars according to claim 1, characterized in that, Two symmetrical guide rods (24) are fixedly installed between the horizontal plate (3) and the worktable (1). A linear bearing (25) is fixedly installed on the lifting plate (7). The linear bearing (25) is slidably installed on the outside of the guide rods (24).

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