A detection device for a DC-DC converter of a new energy vehicle

Abstract

The present invention discloses a detection device for a DC-DC converter of a new energy vehicle, comprising: a liquid storage tank, an inner wall of the liquid storage tank is movably provided with a detection box body; a detection station assembly, arranged inside the detection box body and used for supporting a workpiece to be detected and driving it to move up and down at the same time; a clamping assembly, arranged on the inner wall of the detection box body and used for clamping the workpiece to be detected at the top of the detection station assembly in a hydraulic manner. In the present invention, by first placing the workpiece to be detected on the top of the bearing plate, the electric push rod drives the movable plate to move downward, and the workpiece to be detected on the top of the bearing plate is immersed in water. At this time, the driving motor drives the first vibration wheel to rotate through the driving rod, so that the vibration plate reciprocates up and down, and the vibration plate cooperates with the movable rod and the bearing plate to vibrate the workpiece to be detected on the bearing plate, so as to achieve the purpose of synchronously carrying out water immersion and vibration environment for the workpiece to be detected, and improve the accuracy of the detection result.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical signal detection, and specifically to a detection device for a DC-DC converter of a new energy vehicle. Background Art

[0002] A DC / DC converter is a voltage converter that effectively outputs a fixed voltage after converting the input voltage. DC / DC converters are divided into three categories: boost DC / DC converters, buck DC / DC converters, and buck-boost DC / DC converters. After a DC-DC is produced, it is necessary to detect its insulation performance, waterproof performance, and seismic performance.

[0003] Since the DC-DC converter is an internal component of a new energy vehicle, there are situations where vibration and water immersion occur simultaneously. However, in actual use of the existing technology, it can only provide a water immersion and vibration environment for the DC-DC converter separately and perform waterproof and seismic performance detection, and cannot provide a water immersion and vibration environment simultaneously, resulting in a low accuracy of the detection results. Summary of the Invention

[0004] The purpose of the present invention is to provide a detection device for a DC-DC converter of a new energy vehicle to solve the problems raised in the above background art.

[0005] To achieve the above purpose, the present invention provides the following technical solutions: including:

[0006] A liquid storage tank, inside the inner wall of which a detection box body is movably provided;

[0007] A detection station assembly, arranged inside the detection box body and used for supporting the workpiece to be detected while driving it to move up and down;

[0008] A clamping assembly, arranged on the inner wall of the detection box body and used for clamping the workpiece to be detected at the top of the detection station assembly by hydraulic means;

[0009] A driving assembly, arranged in the middle of the detection box body and used for driving the clamping assembly to work by means of meshing and cooperating with the swing of a connecting rod;

[0010] A vibration assembly, arranged at the bottom of the detection box body and used for driving the detection station assembly to drive the workpiece to be detected to vibrate up and down.

[0011] Preferably, the detection station assembly includes a movable plate movably connected to the inner wall of the detection box body. A first movable groove is formed in the middle of the top of the movable plate. A bearing plate is movably connected to the inner wall of the first movable groove. At the four corners of the bottom of the bearing plate, movable rods are respectively and fixedly connected. At the bottom of the bearing plate corresponding to the position of the movable rods, a first damping spring is fixedly connected, and the first damping spring is fixedly connected to the bottom of the inner wall of the first movable groove.

[0012] Preferably, the movable rods movably penetrate and extend to the bottom of the movable plate. The bottom of the movable rods is fixedly connected with a vibration plate. At the front and rear ends of the bottom of the bearing plate, electric push rods are respectively and fixedly connected, and the electric push rods are fixedly connected to the bottom of the inner wall of the liquid storage tank.

[0013] Preferably, the clamping assembly includes a clamping frame movably connected to the inner wall of the detection box body. The movable plate and the clamping frame are of equal size. A rubber air bag is fixedly connected to the bottom of the clamping frame. The clamping frame is a hollow structure inside, and a plurality of holes are evenly formed in the bottom of the clamping frame. Air inlet pipes are respectively and fixedly connected to the front and rear ends of the clamping frame, and the inside of the clamping frame is communicated with the inside of the rubber air bag and the air inlet pipes respectively. A guiding groove is formed in the side wall of the detection box body corresponding to the position of the air inlet pipes, and the inner wall of the guiding groove is movably connected to the surface of the air inlet pipes. Guide columns are respectively and fixedly connected to the front and rear ends of the clamping frame, and the guide columns are movably connected to the inner wall of the guiding groove. The diameter of the guide columns is equal to the diameter of the air inlet pipes. The number of the guide columns is four, and every two guide columns form a group. The two groups of guide columns are respectively located at both ends of the air inlet pipes.

[0014] Preferably, water is provided inside the liquid storage tank, and the liquid level of the water is below the clamping frame. A telescopic rod is fixedly connected to the bottom of the inner wall of the liquid storage tank, and the telescopic rod is fixedly connected to the bottom of the detection box body. A third damping spring is fixedly connected to the surface of the telescopic rod.

[0015] Preferably, the driving assembly includes a toothed plate which is fixedly connected to one end of the movable plate corresponding to the clamping frame. A toothed roller is meshed with the surface of the toothed plate. The toothed roller has a hollow structure in the middle. Fixed pipes are fixedly connected to both the front and rear ends of the toothed roller respectively. The fixed pipes movably penetrate and are rotatably connected to the middle of the side wall of the detection box body. One end of the fixed pipe far from the toothed roller is fixedly connected to a first connecting pipe. A swing arm is fixedly connected to the surface of the first connecting pipe. A first corrugated pipe is fixedly connected to the inner wall of the swing arm. One end of the first corrugated pipe far from the first connecting pipe is fixedly connected to a movable block. The movable block has a hollow structure inside and is fixedly connected to one end of the air inlet pipe far from the clamping frame. The inside of the toothed roller, the fixed pipe, the first connecting pipe, the swing arm, the first corrugated pipe, the movable block and the air inlet pipe are sequentially communicated. A second movable groove is formed at one end of the swing arm corresponding to the air inlet pipe, and the surface of the air inlet pipe is movably connected to the inner wall of the second movable groove. Through grooves are respectively formed at the bottom of the detection box body corresponding to the vibration plate and the toothed plate.

[0016] Preferably, one end of the first connecting pipe far from the fixed pipe is rotatably connected to a second connecting pipe through a sealing bearing. The bottom of the second connecting pipe is movably connected to a first piston cylinder, and the first piston cylinder is fixedly connected to the bottom of the inner wall of the liquid storage tank. The second connecting pipe movably penetrates and extends into the inside of the first piston cylinder. A first piston is fixedly connected to the surface of the bottom of the second connecting pipe. A second corrugated pipe is fixedly connected to the bottom of the first piston, and the second corrugated pipe is fixedly connected to the bottom of the inner wall of the liquid storage tank. An inert gas is provided inside the second corrugated pipe. The inside of the second corrugated pipe, the second connecting pipe and the first connecting pipe are sequentially communicated.

[0017] Preferably, the vibration assembly includes a driving motor which is fixedly connected to the bottom of the detection box body through a motor bracket. An output shaft of the driving motor is fixedly connected to a driving rod. A first vibration wheel is fixedly connected to the surface of the driving rod and is located at the bottom of the vibration plate. The surface of the driving rod is rotatably connected to a fixing plate through a bearing, and the fixing plate is fixedly connected to the bottom of the detection box body.

[0018] Preferably, a buffer assembly for buffering and adjusting is provided at the bottom of the detection box body. The buffer assembly includes a third connecting pipe. The third connecting pipe is fixedly connected to the surface of the second connecting pipe, and the inside of the third connecting pipe is communicated with the inside of the second connecting pipe. The third connecting pipe is fixedly connected to the bottom of the detection box body. A second piston cylinder and a third corrugated pipe are respectively fixedly connected to the bottom of the detection box body, and the third corrugated pipe is located inside the second piston cylinder. The third connecting pipe fixedly penetrates and extends into the inside of the third corrugated pipe. A second piston is fixedly connected to the bottom of the third corrugated pipe. A piston rod is fixedly connected to the bottom of the second piston. The piston rod movably penetrates and extends to the bottom of the second piston cylinder. A buffer plate is fixedly connected to the bottom of the piston rod. A second damping spring is fixedly connected to the bottom of the second piston cylinder corresponding to the position of the piston rod, and the second damping spring is fixedly connected to the top of the buffer plate. A second vibration wheel is fixedly connected to the surface of the driving rod corresponding to the position of the buffer plate. The second vibration wheel and the first vibration wheel are of equal size, and both the second vibration wheel and the first vibration wheel are respectively of an elliptical structure.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In the present invention, the workpiece to be detected is first placed on the top of the bearing plate. The electric push rod drives the movable plate to move downward, and the workpiece to be detected on the top of the bearing plate is immersed in water. At this time, the driving motor drives the first vibration wheel to rotate through the driving rod, so that the vibration plate reciprocates up and down, and the vibration plate cooperates with the movable rod and the bearing plate to vibrate the workpiece to be detected on the bearing plate, so as to achieve the purpose of synchronously carrying out water immersion and vibration environment for the workpiece to be detected, thereby improving the accuracy of the detection result;

[0021] 2. In the present invention, when the driving rod rotates to drive the first vibration wheel to drive the vibration plate to move upward, it will cause the driving rod to drive the buffer plate to move downward, and the buffer plate will drive the piston rod and the second piston to move downward, thereby generating negative pressure inside the third corrugated pipe, and then sucking the gas inside the second connecting pipe into the inside of the third corrugated pipe through the third connecting pipe, thereby reducing the gas pressure inside the rubber air bag, thereby avoiding the situation that the bearing plate drives the workpiece to be detected to move upward and cooperate with the rubber air bag to squeeze it and cause damage to the workpiece to be detected. In this technical solution, when the bearing plate drives the workpiece to be detected to rise, part of the gas inside the rubber air bag is evacuated, thereby reducing the pressure inside the rubber air bag, that is, during the process of the bearing plate cooperating with the rubber air bag to clamp the workpiece to be detected and rise, the pressure of the bearing plate and the rubber air bag on the workpiece to be detected hardly changes, so that the device can accurately perform waterproof and earthquake-resistant simultaneous detection while avoiding damage to the workpiece to be detected. Description of the Drawings

[0022] Figure 1Schematic diagram of the overall structure of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0023] Figure 2 Schematic diagram of the structure of the detection station assembly of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0024] Figure 3 Front sectional view of the structure of the detection station assembly of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0025] Figure 4 Sectional view of the structure of the detection station assembly of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0026] Figure 5 Sectional view of the structure of the first connecting pipe of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0027] Figure 6 Sectional view of the structure of the buffer assembly of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0028] Figure 7 Schematic diagram of the structure of the swing arm of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0029] Figure 8 Front sectional view of the structure of the swing arm of a detection device for a DC-DC converter of a new energy vehicle according to the present invention;

[0030] Figure 9 Front sectional view of the structure of the clamping assembly of a detection device for a DC-DC converter of a new energy vehicle according to the present invention.

[0031] In the figure: 1. Liquid storage tank; 2. Detection box body; 3. Detection station assembly; 301. Movable plate; 302. First movable groove; 303. Bearing plate; 304. Movable rod; 305. First damping spring; 306. Vibration plate; 307. Electric push rod; 4. Clamping assembly; 401. Clamping frame; 402. Rubber air bag; 403. Guide groove; 404. Air inlet pipe; 405. Guide post; 5. Driving assembly; 501. Rack; 502. Gear roller; 503. Fixed pipe; 504. First connecting pipe; 505. Swing arm; 506. First corrugated pipe; 507. Movable block; 508. Second movable groove; 509. Second connecting pipe; 510. First piston cylinder; 511. First piston; 512. Second corrugated pipe; 6. Vibration assembly; 601. Driving motor; 602. Driving rod; 603. First vibration wheel; 604. Fixed plate; 7. Buffer assembly; 701. Third connecting pipe; 702. Second piston cylinder; 703. Third corrugated pipe; 704. Second piston; 705. Piston rod; 706. Second damping spring; 707. Buffer plate; 708. Second vibration wheel; 8. Telescopic rod; 9. Third damping spring. Detailed implementation manners

[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0033] Please refer to Figures 1-9 , the present invention provides a technical solution including:

[0034] A liquid storage tank 1, and a detection box body 2 is movably arranged on the inner wall of the liquid storage tank 1;

[0035] A detection station assembly 3, which is arranged inside the detection box body 2 and is used for supporting the workpiece to be detected and driving it to move up and down at the same time;

[0036] A clamping assembly 4, which is arranged on the inner wall of the detection box body 2 and is used for clamping the workpiece to be detected at the top of the detection station assembly 3 in a hydraulic manner;

[0037] A driving assembly 5, which is arranged in the middle of the detection box body 2 and is used for driving the clamping assembly 4 to work by means of meshing and cooperating with the swing of a connecting rod;

[0038] A vibration assembly 6, which is arranged at the bottom of the detection box body 2 and is used for driving the detection station assembly 3 to drive the workpiece to be detected to vibrate up and down.

[0039] The detection station assembly 3 includes a movable plate 301, which is movably connected to the inner wall of the detection box body 2. A first movable groove 302 is opened in the middle of the top of the movable plate 301. A bearing plate 303 is movably connected to the inner wall of the first movable groove 302. At the bottom corners of the bearing plate 303, movable rods 304 are respectively and fixedly installed. At the bottom of the bearing plate 303 corresponding to the positions of the movable rods 304, first damping springs 305 are fixedly installed, and the first damping springs 305 are fixedly installed at the bottom of the inner wall of the first movable groove 302.

[0040] The movable rods 304 movably penetrate and extend to the bottom of the movable plate 301. A vibration plate 306 is fixedly installed at the bottom of the movable rods 304. At the front and rear ends of the bottom of the bearing plate 303, electric push rods 307 are respectively and fixedly installed, and the electric push rods 307 are fixedly installed at the bottom of the inner wall of the liquid storage tank 1.

[0041] The clamping assembly 4 includes a clamping frame 401, which is movably connected to the inner wall of the detection box body 2. The movable plate 301 and the clamping frame 401 are of the same size. A rubber air bag 402 is fixedly installed at the bottom of the clamping frame 401. The clamping frame 401 is a hollow structure inside, and a plurality of holes are evenly opened at the bottom of the clamping frame 401. At the front and rear ends of the clamping frame 401, air inlet pipes 404 are respectively and fixedly installed, and the inside of the clamping frame 401 is respectively communicated with the inside of the rubber air bag 402 and the air inlet pipes 404. A guiding groove 403 is opened on the side wall of the detection box body 2 corresponding to the positions of the air inlet pipes 404, and the inner wall of the guiding groove 403 is movably connected to the surface of the air inlet pipes 404. At the front and rear ends of the clamping frame 401, guiding columns 405 are respectively and fixedly installed, and the guiding columns 405 are movably connected to the inner wall of the guiding groove 403. The diameter of the guiding columns 405 is equal to the diameter of the air inlet pipes 404. The number of the guiding columns 405 is four, and every two guiding columns 405 form a group. The two groups of guiding columns 405 are respectively located at both ends of the air inlet pipes 404.

[0042] Water is provided inside the liquid storage tank 1, and the liquid level of the water is below the clamping frame 401. A telescopic rod 8 is fixedly installed at the bottom of the inner wall of the liquid storage tank 1. The telescopic rod 8 is fixedly installed at the bottom of the detection box body 2. A third damping spring 9 is fixedly installed on the surface of the telescopic rod 8.

[0043] The driving assembly 5 includes a toothed plate 501, which is fixedly installed at one end of the movable plate 301 corresponding to the clamping frame 401. A toothed roller 502 is meshed on the surface of the toothed plate 501. The toothed roller 502 has a hollow structure in the middle. Fixed pipes 503 are fixedly installed at both the front and rear ends of the toothed roller 502 respectively. The fixed pipes 503 movably penetrate and are rotatably connected to the middle part of the side wall of the detection box body 2. One end of the fixed pipe 503 far from the toothed roller 502 is fixedly installed with a first connecting pipe 504. A swing arm 505 is fixedly installed on the surface of the first connecting pipe 504. A first corrugated pipe 506 is fixedly installed on the inner wall of the swing arm 505. One end of the first corrugated pipe 506 far from the first connecting pipe 504 is fixedly installed with a movable block 507. The movable block 507 has a hollow structure inside, and the movable block 507 is fixedly installed at one end of the air inlet pipe 404 far from the clamping frame 401. The inside of the toothed roller 502, the fixed pipe 503, the first connecting pipe 504, the swing arm 505, the first corrugated pipe 506, the movable block 507 and the air inlet pipe 404 are sequentially connected in communication. A second movable groove 508 is formed at one end of the swing arm 505 corresponding to the air inlet pipe 404, and the surface of the air inlet pipe 404 is movably connected to the inner wall of the second movable groove 508. Through grooves are respectively formed at the bottom of the detection box body 2 corresponding to the vibration plate 306 and the toothed plate 501. By providing the first corrugated pipe 506 and the movable block 507, the inside of the clamping frame 401 can still be communicated with the inside of the first connecting pipe 504 when the air inlet pipe 404 is in a movable state.

[0044] One end of the first connecting pipe 504 far from the fixed pipe 503 is rotatably connected with a second connecting pipe 509 through a sealing bearing. A first piston cylinder 510 is movably connected to the bottom of the second connecting pipe 509, and the first piston cylinder 510 is fixedly installed at the bottom of the inner wall of the liquid storage tank 1. The second connecting pipe 509 movably penetrates and extends into the inside of the first piston cylinder 510. A first piston 511 is fixedly installed on the surface of the bottom of the second connecting pipe 509. A second piston 512 is fixedly installed at the bottom of the first piston 511, and the second piston 512 is fixedly installed at the bottom of the inner wall of the liquid storage tank 1. Inert gas is provided inside the second piston 512. The inside of the second piston 512, the second connecting pipe 509 and the first connecting pipe 504 are sequentially connected in communication.

[0045] The vibration assembly 6 includes a driving motor 601, which is fixedly installed at the bottom of the detection box body 2 through a motor bracket. A driving rod 602 is fixedly installed on the output shaft of the driving motor 601. A first vibration wheel 603 is fixedly installed on the surface of the driving rod 602, and the first vibration wheel 603 is located at the bottom of the vibration plate 306. The surface of the driving rod 602 is rotatably connected with a fixing plate 604 through a bearing, and the fixing plate 604 is fixedly installed at the bottom of the detection box body 2.

[0046] A buffer assembly 7 for buffering and adjustment is provided at the bottom of the detection box body 2. The buffer assembly 7 includes a third connecting pipe 701. The third connecting pipe 701 is fixedly installed on the surface of the second connecting pipe 509, and the inside of the third connecting pipe 701 is communicated with the inside of the second connecting pipe 509. The third connecting pipe 701 is fixedly installed at the bottom of the detection box body 2. A second piston cylinder 702 and a third corrugated pipe 703 are respectively fixedly installed at the bottom of the detection box body 2, and the third corrugated pipe 703 is located inside the second piston cylinder 702. The third connecting pipe 701 fixedly penetrates and extends into the inside of the third corrugated pipe 703. A second piston 704 is fixedly installed at the bottom of the third corrugated pipe 703. A piston rod 705 is fixedly installed at the bottom of the second piston 704. The piston rod 705 movably penetrates and extends to the bottom of the second piston cylinder 702. A buffer plate 707 is fixedly installed at the bottom of the piston rod 705. A second damping spring 706 is fixedly installed at the bottom of the second piston cylinder 702 corresponding to the position of the piston rod 705, and the second damping spring 706 is fixedly installed on the top of the buffer plate 707. A second vibration wheel 708 is fixedly installed on the surface of the driving rod 602 corresponding to the position of the buffer plate 707. The second vibration wheel 708 and the first vibration wheel 603 are of equal size, and both the second vibration wheel 708 and the first vibration wheel 603 are respectively of an elliptical structure.

[0047] Working principle: When in use, the invention first places the workpiece to be detected on the top of the bearing plate 303. When the bearing plate 303 and the movable plate 301 are in the initial position, the horizontal plane at the top should be in the same plane as the horizontal plane at the top of the clamping frame 401. When in use, the electric push rod 307 is energized to drive the movable plate 301 to move downward, so that the movable plate 301 drives the bearing plate 303 to move downward in cooperation with the first damping spring 305. At the same time, the movable plate 301 drives the toothed plate 501 to move downward until the toothed plate 501 meshes with the toothed roller 502. The electric push rod 307 continues to drive the movable plate 301 to move downward, and makes the toothed plate 501 and the toothed roller 502 engage with each other and drive the toothed roller 502 to rotate. The toothed roller 502 drives the first connecting pipe 504 to rotate through the fixed pipe 503, so that the first connecting pipe 504 drives the swing arm 505 to rotate. When the swing arm 505 rotates, the swing arm 505 drives the air inlet pipe 404 to move leftward in cooperation with the second movable groove 508, and the air inlet pipe 404 drives the clamping frame 401 to move leftward. By arranging the guide groove 403 to cooperate with the air inlet pipe 404 and the guide post 405, the clamping frame 401 can move horizontally stably inside the detection box 2 until the clamping frame 401 moves directly above the movable plate 301. At this time, the bottom of the movable plate 301 contacts the bottom of the detection box 2, and at the same time, the vibration plate 306 is not far above the first vibration wheel 603. At this time, the downward movement of the movable plate 301 will not generate relative movement with the detection box 2, that is, the continuous downward movement of the movable plate 301 will cause the movable plate 301 to drive the detection box 2 to move downward synchronously and squeeze the telescopic rod 8 and the third damping spring 9. When the electric push rod 307 drives the movable plate 301 to move downward, the workpiece to be detected on the top of the bearing plate 303 will be immersed in water. When the movable plate 301 and the detection box 2 move downward synchronously, the detection box 2 drives the second connecting pipe 509 to move downward through the fixed pipe 503 and the first connecting pipe 504, so that the second connecting pipe 509 drives the first piston 511 to move downward on the inner wall of the first piston cylinder 510 and squeeze the second bellows 512, so that the inert gas inside the second bellows 512 enters the inside of the clamping frame 401 through the second connecting pipe 509, the first connecting pipe 504, the swing arm 505, the first bellows 506, the movable block 507 and the air inlet pipe 404, and enters the inside of the rubber air bag 402 through the holes at the bottom of the clamping frame 401, so that the rubber air bag 402 expands and clamps the workpiece to be detected on the top of the bearing plate 303, so that the workpiece to be detected is clamped between the bearing plate 303 and the rubber air bag 402 until the rubber air bag 402 stably clamps the workpiece to be detected in cooperation with the movable plate 301. At this time, the electric push rod 307 stops working, and at this time, the drive motor 601 starts to work, so that the drive motor 601 is energized to drive the drive rod 602 to rotate. When the drive rod 602 rotates,It will cause the driving rod 602 to drive the first vibration wheel 603 to rotate, and then cause the first vibration wheel 603 to intermittently drive the vibration plate 306 to move upward, and cause the vibration plate 306 to drive the bearing plate 303 to move upward through the movable rod 304 and stretch the first damping spring 305. Cooperating with the reset contraction of the first damping spring 305, when the first vibration wheel 603 no longer drives the vibration plate 306 to move upward, the vibration plate 306 can quickly move downward, so that the vibration plate 306 reciprocates up and down. And when the vibration plate 306 reciprocates up and down, it will cause the vibration plate 306 to cooperate with the movable rod 304 and the bearing plate 303 to vibrate the workpiece to be detected on the bearing plate 303, so as to achieve the purpose of synchronously performing water immersion and vibration environment for the workpiece to be detected, improving the accuracy of the detection result. After the detection is completed, at this time, the drive motor 601 stops working, and at the same time, the electric push rod 307 drives the movable plate 301 to move upward, and then makes the toothed plate 501 engage with the toothed roller 502, and makes the toothed roller 502 rotate in the reverse direction, so that the toothed roller 502 cooperates with the fixed pipe 503, the first connecting pipe 504, the swing arm 505, the second movable groove 508 and the air inlet pipe 404 to drive the clamping frame 401 to move to the right, and at the same time, the detection box body 2 moves upward, so that the detection box body 2 drives the first piston 511 to move upward through the fixed pipe 503 in cooperation with the first connecting pipe 504 and the second connecting pipe 509, and makes the gas inside the rubber airbag 402 return to the inside of the second corrugated pipe 512 again, so that the whole device can return to the initial state. Since when the vibration assembly 6 is working, if the air pressure inside the toothed roller 502 is not changed, it will cause the bearing plate 303 and the rubber airbag 402 to clamp the workpiece to be detected, and the workpiece to be detected will be damaged during clamping. The problem can be solved by setting the buffer assembly 7. When the driving rod 602 rotates to drive the first vibration wheel 603 to drive the vibration plate 306 to move upward, it will cause the driving rod 602 to drive the buffer plate 707 to move downward, and cause the buffer plate 707 to drive the piston rod 705 and the second piston 704 to move downward, and then cause a negative pressure to be generated inside the third corrugated pipe 703, and then suck the gas inside the second connecting pipe 509 into the third corrugated pipe 703 through the third connecting pipe 701, thereby reducing the gas pressure inside the rubber airbag 402, thus avoiding the situation that the bearing plate 303 drives the workpiece to be detected to move upward and cooperate with the rubber airbag 402 to squeeze it and cause damage to the workpiece to be detected. In this technical solution, when the bearing plate 303 drives the workpiece to be detected to rise, part of the gas inside the rubber airbag 402 is evacuated, thereby reducing the pressure inside the rubber airbag 402, that is, during the process of the bearing plate 303 cooperating with the rubber airbag 402 to clamp the workpiece to be detected and rise, the pressure of the bearing plate 303 and the rubber airbag 402 on the workpiece to be detected hardly changes, so that the device can accurately perform waterproof and earthquake-resistant simultaneous detection while avoiding damage to the workpiece to be detected.

[0048] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0049] Although embodiments of the present invention have been shown and described, those of ordinary skill in the art can understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the present invention. The scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A detection device for a DC-DC converter of a new energy vehicle, characterized in that: Including: A liquid storage tank (1), inside the inner wall of which a detection box body (2) is movably arranged; A detection station assembly (3), arranged inside the detection box body (2) and used for supporting a workpiece to be detected and driving it to move up and down at the same time; A clamping assembly (4), arranged on the inner wall of the detection box body (2) and used for clamping the workpiece to be detected at the top of the detection station assembly (3) in a hydraulic manner. The clamping assembly (4) includes a clamping frame (401), the clamping frame (401) is movably connected to the inner wall of the detection box body (2), a rubber air bag (402) is fixedly connected to the bottom of the clamping frame (401), the clamping frame (401) is of a hollow structure inside, and a plurality of holes are evenly formed in the bottom of the clamping frame (401). Air inlet pipes (404) are fixedly connected to both the front and rear ends of the clamping frame (401), and the inside of the clamping frame (401) is communicated with the inside of the rubber air bag (402) and the air inlet pipes (404) respectively. A guide groove (403) is formed in the side wall of the detection box body (2) corresponding to the position of the air inlet pipes (404), and the inner wall of the guide groove (403) is movably connected to the surface of the air inlet pipes (404). Guide columns (405) are fixedly connected to both the front and rear ends of the clamping frame (401), and the guide columns (405) are movably connected to the inner wall of the guide groove (403). The diameter of the guide columns (405) is equal to the diameter of the air inlet pipes (404). The number of the guide columns (405) is four, and every two guide columns (405) form a group. The two groups of guide columns (405) are respectively located at both ends of the air inlet pipes (404); The driving component (5) is arranged in the middle of the detection box body (2) and is used to drive the clamping component (4) to work by means of meshing and cooperating with the swing of the connecting rod. The driving component (5) includes a toothed plate (501), and the toothed plate (501) is fixedly connected to one end of the movable plate (301) corresponding to the clamping frame (401). A toothed roller (502) is meshed on the surface of the toothed plate (501). The toothed roller (502) has a hollow structure in the middle. Fixed pipes (503) are respectively fixedly connected to the front and rear ends of the toothed roller (502). The fixed pipes (503) movably penetrate and are rotatably connected to the middle of the side wall of the detection box body (2). One end of the fixed pipe (503) far from the toothed roller (502) is fixedly connected to a first connecting pipe (504). A swing arm (505) is fixedly connected to the surface of the first connecting pipe (504). A first bellows (506) is fixedly connected to the inner wall of the swing arm (505). One end of the first bellows (506) far from the first connecting pipe (504) is fixedly connected to a movable block (507). The movable block (507) has a hollow structure inside, and the movable block (507) is fixedly connected to one end of the air inlet pipe (404) far from the clamping frame (401). The inside of the toothed roller (502), the fixed pipe (503), the first connecting pipe (504), the swing arm (505), the first bellows (506), the movable block (507) and the air inlet pipe (404) are sequentially connected in communication. A second movable groove (508) is formed at one end of the swing arm (505) corresponding to the air inlet pipe (404), and the surface of the air inlet pipe (404) is movably connected to the inner wall of the second movable groove (508). Through grooves are respectively formed at the bottom of the detection box body (2) corresponding to the vibration plate (306) and the toothed plate (501). One end of the first connecting pipe (504) far from the fixed pipe (503) is rotatably connected to a second connecting pipe (509) through a sealed bearing. The bottom of the second connecting pipe (509) is movably connected to a first piston cylinder (510), and the first piston cylinder (510) is fixedly connected to the bottom of the inner wall of the liquid storage tank (1). The second connecting pipe (509) movably penetrates and extends into the inside of the first piston cylinder (510). A first piston (511) is fixedly connected to the surface of the bottom of the second connecting pipe (509). A second bellows (512) is fixedly connected to the bottom of the first piston (511), and the second bellows (512) is fixedly connected to the bottom of the inner wall of the liquid storage tank (1). An inert gas is arranged inside the second bellows (512). The inside of the second bellows (512), the second connecting pipe (509) and the first connecting pipe (504) are sequentially connected in communication; The vibration component (6) is arranged at the bottom of the detection box body (2) and is used to drive the detection station component (3) to drive the workpiece to be detected to vibrate up and down.

2. The detection device for a DC-DC converter of a new energy vehicle according to claim 1, characterized in that: The detection station assembly (3) includes a movable plate (301), the movable plate (301) is movably connected to the inner wall of the detection box body (2), a first movable groove (302) is formed in the middle of the top of the movable plate (301), a bearing plate (303) is movably connected to the inner wall of the first movable groove (302), movable rods (304) are fixedly connected to the bottoms of the four corners of the bearing plate (303) respectively, a first damping spring (305) is fixedly connected to the bottom of the bearing plate (303) corresponding to the position of the movable rod (304), and the first damping spring (305) is fixedly connected to the bottom of the inner wall of the first movable groove (302).

3. The detection device for a DC-DC converter of a new energy vehicle according to claim 2, characterized in that: The movable rod (304) movably penetrates and extends to the bottom of the movable plate (301), a vibration plate (306) is fixedly connected to the bottom of the movable rod (304), electric push rods (307) are fixedly connected to the front and rear ends of the bottom of the bearing plate (303) respectively, and the electric push rods (307) are fixedly connected to the bottom of the inner wall of the liquid storage tank (1).

4. The detection device for a DC-DC converter of a new energy vehicle according to claim 3, characterized in that: The movable plate (301) and the clamping frame (401) are equal in size.

5. The detection device for a DC-DC converter of a new energy vehicle according to claim 4, wherein: Water is provided inside the liquid storage tank (1), and the liquid level of the water is below the clamping frame (401), a telescopic rod (8) is fixedly connected to the bottom of the inner wall of the liquid storage tank (1), the telescopic rod (8) is fixedly connected to the bottom of the detection box body (2), and a third damping spring (9) is fixedly connected to the surface of the telescopic rod (8).

6. The detection device for a DC-DC converter of a new energy vehicle according to claim 5, characterized in that: The vibration assembly (6) includes a drive motor (601), the drive motor (601) is fixedly connected to the bottom of the detection box body (2) through a motor bracket, a drive rod (602) is fixedly connected to the output shaft of the drive motor (601), a first vibration wheel (603) is fixedly connected to the surface of the drive rod (602), and the first vibration wheel (603) is located below the vibration plate (306), a fixing plate (604) is rotatably connected to the surface of the drive rod (602) through a bearing, and the fixing plate (604) is fixedly connected to the bottom of the detection box body (2).

7. The detection device for a DC-DC converter of a new energy vehicle according to claim 6, characterized in that: The bottom of the detection box body (2) is provided with a buffer assembly (7) for buffer adjustment. The buffer assembly (7) includes a third connecting pipe (701). The third connecting pipe (701) is fixedly connected to the surface of the second connecting pipe (509), and the inside of the third connecting pipe (701) is communicated with the inside of the second connecting pipe (509). The third connecting pipe (701) is fixedly connected to the bottom of the detection box body (2). The bottom of the detection box body (2) is respectively fixedly connected with a second piston cylinder (702) and a third corrugated pipe (703), and the third corrugated pipe (703) is located inside the second piston cylinder (702). The third connecting pipe (701) fixedly penetrates and extends into the inside of the third corrugated pipe (703). The bottom of the third corrugated pipe (703) is fixedly connected with a second piston (704). The bottom of the second piston (704) is fixedly connected with a piston rod (705). The piston rod (705) movably penetrates and extends to the bottom of the second piston cylinder (702). The bottom of the piston rod (705) is fixedly connected with a buffer plate (707). The bottom of the second piston cylinder (702) corresponding to the position of the piston rod (705) is fixedly connected with a second damping spring (706), and the second damping spring (706) is fixedly connected to the top of the buffer plate (707). The surface of the driving rod (602) corresponding to the position of the buffer plate (707) is fixedly connected with a second vibration wheel (708). The second vibration wheel (708) and the first vibration wheel (603) are of equal size, and both the second vibration wheel (708) and the first vibration wheel (603) are respectively of an elliptical structure.

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