Comprehensive performance detection device for rectifier

Abstract

The invention relates to the technical field of rectifier detection, and particularly discloses a comprehensive performance detection device for a rectifier, and the device comprises a bottom box housing, a detection mechanism, a controller, an environment simulation system, a fire extinguishing system, and an exhaust system. The detection mechanism is arranged at the top of the bottom box shell; the environment simulation system is installed in the bottom box shell. The fire extinguishing system is arranged on the rear side of the bottom box shell. And the exhaust system is arranged at the top of the detection mechanism. The comprehensive performance detection device for the rectifier can accurately simulate extreme mechanical damage scenes such as multi-direction foreign matter puncture and collision possibly encountered by the rectifier in a real vehicle, truly restore the working state of the rectifier under complex extreme working conditions, and ensure that the detection result can directly reflect the actual use performance of the rectifier. And the whole detection process is automatically controlled, so that the detection efficiency is greatly improved, and the reliability and normalization of the detection work are further improved.

Description

Technical Field

[0001] This invention relates to the field of rectifier testing technology, specifically to a comprehensive performance testing device for rectifiers. Background Technology

[0002] A rectifier is a core power electronic device that converts AC to DC power based on the unidirectional conductivity of semiconductor devices. Its core function is to convert alternating current (AC) with varying magnitude and direction over time into direct current (DC) with a fixed direction and relatively stable magnitude. Rectifiers can be classified by circuit structure into half-wave rectifiers, full-wave rectifiers, and bridge rectifiers, and by control method into uncontrolled rectifiers and controlled rectifiers. As a key component of power electronic systems, rectifiers are widely used in industrial applications such as industrial motor drives, electric transmissions, and electrochemical processing. They are crucial for the stable operation of new energy power conversion processes such as photovoltaic inverters and wind power generation, as well as for equipment like electric vehicle charging stations, consumer electronics power adapters, and communication base station power supply systems.

[0003] With the rapid development of new energy, industrial automation and other fields, the power density of rectifiers continues to increase and the application scenarios are becoming increasingly complex. Their operational stability, electrical performance reliability and tolerance under extreme conditions directly determine the power supply safety and operational reliability of downstream equipment. Therefore, conducting comprehensive and accurate performance testing on rectifiers in the product development and factory quality inspection stages has become a core process to ensure product quality.

[0004] Currently, existing rectifier performance testing devices still have many limitations: First, their operating condition simulation capabilities are limited, mostly only able to complete basic electrical parameter testing under normal temperature and pressure, unable to reproduce the complex and extreme operating conditions faced by rectifiers in actual service, such as high and low temperature damp heat, needle flame tests, high speed or rapid speed change tests, foreign object puncture, multi-directional collision impacts, etc., and even less able to achieve multi-stress coupling loading tests, resulting in significant deviations between test results and actual product performance; Second, their automation level and interface compatibility are insufficient, the electrical connection between the rectifier under test and the testing system mostly relies on manual operation, resulting in low testing efficiency and easy introduction of operational errors. The few devices with automatic connection functions can only adapt to a single type of wiring interface, with poor versatility, making it difficult to meet the batch testing needs of multiple rectifier models; Third, their safety protection system is imperfect, lacking a linkage safety protection mechanism for fire early warning, precise fire extinguishing, and harmful gas emission during extreme operating condition testing and destructive simulation testing, resulting in poor controllability of safety risks during the testing process, and failing to meet the needs of large-scale, standardized comprehensive performance testing of rectifiers. Therefore, developing a comprehensive rectifier performance testing device that can accurately reproduce the complex and extreme service conditions of rectifiers, has the capability for universal automatic docking with multiple interface specifications, and integrates a complete linkage safety protection system has become a technical problem that needs to be solved in this field. Summary of the Invention

[0005] The purpose of this invention is to provide a comprehensive performance testing device for rectifiers to solve the prior art problems mentioned in the background section.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a comprehensive performance testing device for rectifiers, comprising: Bottom casing; The testing mechanism is located at the top of the bottom housing shell; The controller is installed on the front side of the detection mechanism; An environmental simulation system is installed inside the bottom housing, and the environmental simulation system is electrically connected to the controller; A fire extinguishing system is installed on the rear side of the bottom housing shell, and the fire extinguishing system is electrically connected to the controller; An exhaust system is installed at the top of the detection mechanism, and the exhaust system is electrically connected to the controller.

[0007] Preferably, the detection mechanism includes: a top housing shell, a robotic arm, a multi-directional nozzle, an electrical connection part, and a destructive simulation part; the top housing shell is fixedly installed on the top outer surface of the bottom housing shell; the controller is embedded in a groove opened on the top front side of the door of the top housing shell; the environmental simulation system is connected to the interior of the top housing shell via a pipe; the exhaust system is embedded in a slot opened on the top outer surface of the top housing shell; the robotic arm is fixedly installed on the top inner surface of the top housing shell, and the robotic arm is electrically connected to the controller; the multi-directional nozzle is fixedly installed on the bottom of the moving end of the robotic arm, and the multi-directional nozzle is connected to the fire extinguishing system via a connecting pipe, and the multi-directional nozzle is electrically connected to the controller; there are two electrical connection parts, which are respectively located on the left and right sides of the exterior of the top housing shell; the destructive simulation part is located at the bottom inner surface of the top housing shell.

[0008] Preferably, the electrical connection portion includes: a tank housing, an electric telescopic rod, a sealing mounting plate, and an electrical connector; the tank housing is fixedly installed on the outer surface of the top compartment housing and located outside the tank formed in the side wall of the top compartment housing; the electric telescopic rod is fixedly installed inside the tank housing and is electrically connected to the controller; the sealing mounting plate is fixedly installed inside the telescopic end of the electric telescopic rod; the electrical connector is installed on the outer side of the sealing mounting plate and is electrically connected to the controller; wherein, a multi-hole mating component is provided at the front inner side of the sealing mounting plate, a single-hole mating component is provided at the rear inner side of the sealing mounting plate, and a position adjustment component is provided on the outer side of the multi-hole mating component and the single-hole mating component.

[0009] Preferably, the multi-hole docking component includes: a first mounting plate, a first motor, a rotating rod, a first sliding groove seat, a limiting slider, a first connecting rod, a second sliding groove seat, a first slider seat, a first connecting plug, a second connecting rod, a limiting rod, and a transmission rod; the first mounting plate is disposed in the upper and lower direction in front of the inner side of the sealing mounting plate; the first motor is fixedly mounted on the top outer side of the first mounting plate, and the first motor and the controller are electrically connected; one end of the rotating rod is rotatably mounted on the middle of the top inner side of the first mounting plate through a bearing seat, and the rotating end of the first motor extends to the inner side of the first mounting plate and is fixedly connected to the axis of the rotating rod; the first sliding groove seat is fixedly mounted on the middle inner side of the first mounting plate; the limiting slider is inserted into the inner side of the first sliding groove seat; one end of the first connecting rod is rotatably mounted on the middle inner side of the limiting slider through a rotating shaft, and the other end of the first connecting rod is rotatably connected to the other end of the rotating rod through a rotating shaft; the second sliding groove seat is fixedly mounted on the bottom inner side of the first mounting plate. The first slider seat is inserted into the inner side of the second slide rail seat; there are two first connecting plugs, which are detachably mounted on the front and rear sides of the inner bottom of the first slider seat via mounting brackets, and the first connecting plugs are electrically connected to the electrical connector; there are two second connecting rods, one end of which is rotatably mounted on the front and rear ends of the inner side of the first slider seat via a rotating shaft; there are two limiting rods, one end of which is rotatably mounted on the inner side of the first mounting plate via a rotating shaft and located on the front and rear sides of the outer side of the first slide rail seat, and the other end of which is rotatably connected to ...

[0010] Preferably, the single-hole docking component includes: a second mounting plate, a first limiting component, a second connecting plug, and a first miniature electric telescopic rod; the second mounting plate is disposed on the inner rear side of the sealing mounting plate in a vertical direction; the first limiting component is fixedly installed on the inner rear side of the second mounting plate in a vertical direction; the second connecting plug is fixedly installed on the inner side of the limiting end of the first limiting component through a mounting bracket, and the second connecting plug is electrically connected to an electrical connector; the first miniature electric telescopic rod is fixedly installed on the inner front side of the second mounting plate in a vertical direction, the telescopic end of the first miniature electric telescopic rod is connected to the limiting end of the first limiting component through a connector, and the first miniature electric telescopic rod is electrically connected to a controller.

[0011] Preferably, the destructive simulation section includes: a first linear movement module, a rotation module, a mounting base plate, a vertical frame, and a dual-axis movement module; the first linear movement module is fixedly installed in the middle of the front side of the bottom end inside the tank shell along the front-rear direction, and the first linear movement module is electrically connected to the controller; the rotation module is fixedly installed on the top of the moving end of the first linear movement module, and the rotation module is electrically connected to the controller; the mounting base plate is installed on the top of the rotating end of the rotation module; the vertical frame is installed inside the top tank shell and located behind the first linear movement module; the dual-axis movement module is installed on the upper front side of the vertical frame, and the dual-axis movement module is electrically connected to the controller.

[0012] Preferably, the destructive simulation section further includes: an arc-shaped slide seat, an arc-shaped moving seat, a semi-arc-shaped worm gear seat, a fourth motor, a worm, a housing, a rotating cylinder, a fixed seat, a rotating shaft, a rotating seat, a bevel gear set, a second miniature electric telescopic rod, a conical head, a miniature motor, and a gear set; the arc-shaped slide seat is fixedly installed on the front side of the moving end of the dual-axis moving module via an L-shaped bracket; the arc-shaped moving seat is snapped onto the lower outer side of the arc-shaped slide seat; the semi-arc-shaped worm gear seat is installed in the middle of the inner side of the arc-shaped moving seat; the fourth motor is installed on the arc-shaped slide seat. The rotating end of the fourth motor extends into the inner side of the arc-shaped sliding seat at the outer right end of the arc-shaped sliding seat, and the fourth motor is electrically connected to the controller; a worm gear is installed at the rotating end of the fourth motor, and the worm gear meshes with a semi-arc worm wheel seat; the housing is installed at the bottom end of the arc-shaped moving seat via a bracket; a rotating cylinder is rotatably installed in the cavity of the slot opened on the right side of the housing via bearings, and the left and right ends of the rotating cylinder extend to the inner cavity and the outer side of the housing, respectively; a fixed seat is installed at the outer right end of the rotating cylinder, and the fixed seat is V-shaped. A rotating shaft is rotatably mounted inside the rotating cylinder via bearings in a left-right direction, with both ends of the shaft extending outwards from the cylinder. A rotating seat is rotatably mounted above the bottom of a fixed seat via a rotating shaft, and the rotating seat is V-shaped. One end of a bevel gear set is connected by a gear key to the outer right end of the rotating shaft, and the other gear of the bevel gear set is fixedly mounted at the bottom of the rotating seat's shaft. A second micro electric telescopic rod is fixedly mounted on the top right side of the rotating seat in a vertical direction, with its telescopic end extending outwards from the lower surface of the rotating seat. The second micro electric telescopic rod is electrically connected to a controller. A conical head is fixedly mounted at the bottom of the telescopic end of the second micro electric telescopic rod. There are two micro motors, which are respectively mounted on the front and rear sides of the inner cavity of the housing, and are electrically connected to a controller. There are two gear sets, with one gear of each gear set fixedly mounted on the rotating end of the two micro motors, and the other gears of each gear set mounted on the outer left side of the rotating cylinder and the rotating shaft, respectively.

[0013] Compared with the prior art, the beneficial effects of the present invention are: 1. The first mounting plate moves to a designated position above the rectifier connector. The first motor drives the rotating rod to rotate, which in turn drives one end of the first connecting rod to move circumferentially. This causes the first connecting rod to drive the limiting slider connected to its other end, making the limiting slider reciprocate up and down inside the first slide seat. When the limiting slider moves downward, it drives the two transmission rods on its inner side to move downward, causing the transmission rods on both sides to drive the second connecting rod and the limiting rod connected to them to move downward synchronously. Under the constraint of the limiting rod, the second connecting rods on both sides rotate from a folded position to a vertical position at the connection point between the second connecting rod and the limiting rod, and drive the first slider seat. This causes the first slider seat to drive the first connecting plugs on both sides to move downward along the inner side of the second slide seat, so that the first connecting plugs are inserted into the rectifier wiring socket. The first miniature electric telescopic rod drives the limiting end inside the first limiting component to drive the second connecting plug. Under the constraint of the first limiting component, the second connecting plug moves downward and is inserted into the rectifier wiring socket.

[0014] 2. The dual-axis moving module adjusts the arc-shaped slide seat along the dual axes to move it closer to the designated position above the rectifier workpiece. The fourth motor drives the worm gear to rotate, causing the semi-arc worm gear seat to drive the arc-shaped moving seat under the rotational force of the worm gear. The arc-shaped moving seat moves to the left or right along the outer arc of the arc-shaped slide seat. The two micro motors drive the gears in the corresponding gear sets to rotate clockwise or counterclockwise. Under the transmission of the gear sets, the rotating drum and rotating shaft at the corresponding positions rotate. The rotating drum drives the fixed seat to deflect forward or backward to the designated tilt angle. The rotating shaft drives the bevel gear in the bevel gear set to rotate. Under the transmission of the bevel gear set, the rotating seat is driven to deflect forward or backward below the fixed seat to the designated tilt angle. After the conical head is adjusted to the designated angle position, the second micro electric telescopic rod extends to drive the conical head to insert into the rectifier workpiece, damaging the surface of the rectifier workpiece to simulate a damage environment.

[0015] This allows for precise simulation of extreme mechanical damage scenarios that rectifiers may encounter in real vehicles, such as multi-directional foreign object punctures and collisions. Combined with multi-dimensional temperature and humidity environment simulation, it can realistically reproduce the working state of rectifiers under complex and extreme conditions. This breaks through the limitations of traditional testing scenarios, which are singular and have low accuracy, ensuring that the test results can directly reflect the actual performance of the rectifier. Furthermore, the entire testing process is automated, from workpiece positioning, wiring connection, and environmental adjustment to mechanical damage testing, electrical performance monitoring, and emergency handling, all without human intervention. This significantly improves testing efficiency, reduces human error, and further enhances the reliability and standardization of testing work. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2for Figure 1 Explosion diagram of the testing facility; Figure 3 for Figure 2 Exploded view of the electrical connection section; Figure 4 for Figure 3 Enlarged view of point A; Figure 5 for Figure 3 Enlarged view of point B; Figure 6 for Figure 3 Enlarged view of point C; Figure 7 for Figure 2 Exploded view of the electrical connection section; Figure 8 for Figure 7 Enlarged view of point D.

[0017] In the diagram: 1. Bottom housing shell, 2. Detection mechanism, 21. Top housing shell, 22. Robotic arm, 23. Multi-directional nozzle, 3. Electrical connection part, 31. Tank shell, 32. Electric telescopic rod, 33. Sealing mounting plate, 34. Electrical connector, 35. First mounting plate, 36. First motor, 37. Rotating rod, 38. First slide block, 39. Limiting slider, 310. First connecting rod, 311. Second slide block, 312. First slider seat, 313. First connecting plug, 314. Second connecting rod, 315. Limiting rod, 316. Transmission rod, 317. Second mounting plate, 318. First limiting assembly, 319. Second connecting plug, 320. First miniature electric telescopic rod, 321. First slide shell, 322. Second limiting assembly, 323. Second slider seat, 324. First 325. Lead screw assembly, 326. Second motor, 327. Second slide rail housing, 328. Third limit assembly, 329. Third slider seat, 330. Second lead screw assembly, 4. Third motor, 4. Destructive simulation section, 41. First linear movement module, 42. Rotation module, 43. Mounting base plate, 44. Vertical frame, 45. Dual-axis movement module, 46. Arc-shaped slide rail seat, 47. Arc-shaped moving seat, 48. Semi-arc worm gear seat, 49. Fourth motor, 410. Worm, 411. Housing, 412. Rotary cylinder, 413. Fixed seat, 414. Rotating shaft, 415. Rotating seat, 416. Bevel gear set, 417. Second miniature electric telescopic rod, 418. Conical head, 419. Miniature motor, 420. Gear set, 5. Controller, 6. Environmental simulation system, 7. Fire extinguishing system, 8. Ventilation system. Detailed Implementation

[0018] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0019] Please see Figures 1-8 This invention provides a technical solution: a comprehensive performance testing device for rectifiers, comprising: a bottom housing 1, a testing mechanism 2, a controller 5, an environmental simulation system 6, a fire extinguishing system 7, and an exhaust system 8. The bottom housing 1 has a pre-reserved dedicated mounting slot and is equipped with anti-slip and shock-absorbing pads at the bottom to reduce vibration during operation and prevent displacement of the device during testing. The testing mechanism 2 is located at the top of the bottom housing 1. The controller 5 is installed on the front side of the testing mechanism 2. The controller 5 has a pre-set complete testing program, action logic, and parameter thresholds, enabling centralized control, data acquisition, real-time monitoring, and fault alarm for all electrical components. It can accurately receive feedback signals from each component and synchronously issue action commands to ensure automated and precise operation of the testing process. The environmental simulation system 6 is installed inside the bottom housing 1 and is electrically connected to the controller 5. The environmental simulation system 6 continuously supplies high-temperature and low-temperature gases or high-temperature and low-temperature steam to the testing chamber. In conjunction with the commands of the controller 5, it precisely adjusts the temperature and humidity to preset values ​​and maintains stability, while simultaneously providing real-time feedback of the chamber's environmental parameters to the controller 5 to ensure environmental stability. The accuracy of the simulation provides environmental conditions consistent with real-vehicle scenarios for the environmental adaptability testing and extreme performance testing of the rectifier. The fire extinguishing system 7 is located on the rear side of the bottom housing shell 1. The fire extinguishing system 7 is electrically connected to the controller 5. The fire extinguishing system 7 is equipped with a carbon dioxide extinguishing agent storage tank, a dedicated fire extinguishing pipeline, and a pressure monitoring module. When the controller 5 detects abnormal signals of fire in the rectifier components through the cabin temperature sensor and smoke sensor, or when it is discovered by personnel, the fire extinguishing system 7 activates the fire extinguishing agent supply, delivering the fire extinguishing agent to the multi-directional nozzles 23 through the pipeline to prevent the fire from spreading. The fire suppression system prevents the fire from spreading and damaging equipment or causing safety accidents. It also provides real-time feedback on the fire suppression status to the controller 5 to ensure that the fire suppression process is controllable. The exhaust system 8 is located on the top of the testing unit 2 and is electrically connected to the controller 5. The exhaust system 8 uses an industrial-grade axial flow fan, equipped with a dust filter and an air volume adjustment module. It can work with the environmental simulation system 6 to adjust the temperature and humidity inside the testing chamber. At the same time, through continuous ventilation circulation, it can quickly remove excess gas and condensate generated by environmental simulation, as well as harmful gases that may be generated during the rectifier test, to ensure stable air pressure inside the chamber.

[0020] As a preferred option, further, such as Figure 2As shown, the detection mechanism 2 includes: a top chamber shell 21, a robotic arm 22, a multi-directional nozzle 23, an electrical connection part 3, and a destructive simulation part 4. The top chamber shell 21 is fixedly installed on the top of the outer surface of the bottom chamber shell 1. The controller 5 is embedded in the groove opened on the top of the front side of the door of the top chamber shell 21. The environmental simulation system 6 is connected to the interior of the top chamber shell 21 through a pipe. The exhaust system 8 is embedded in the slot opened on the top of the outer surface of the top chamber shell 21. A manual sealing door is provided on the front side of the top chamber shell 21, and a sealing strip is added to the outside of the sealing door. The interior of the top chamber shell 21 is equipped with a chamber temperature sensor or a smoke sensor as needed. The robotic arm 22 is fixedly installed on the top of the interior of the top chamber shell 21. The robotic arm 22 is electrically connected to the controller 5. The robotic arm 22 is controlled by the command of the controller 5 and can achieve flexible rotation and movement with multiple degrees of freedom. It can drive the multi-directional nozzle 23 to move. When the rectifier workpiece catches fire, it can... The multi-directional nozzle 23 is quickly moved above the fire location for precise fire extinguishing. Simultaneously, during mechanical destructive testing, its position can be adjusted to avoid interference with components of the destructive simulation section 4, ensuring smooth testing. The multi-directional nozzle 23 is fixedly installed at the bottom of the moving end of the robotic arm 22. It is connected to the fire extinguishing system 7 via a connecting pipe and electrically connected to the controller 5. The multi-directional nozzle 23 has a 360° multi-angle spraying function, enabling all-around, no-dead-angle fire extinguishing. It is connected to the fire extinguishing system 7 via a high-pressure flame-retardant connecting pipe, secured with snap-fit ​​to ensure a leak-proof seal and prevent extinguishing agent loss. The multi-directional nozzle 23 is controlled by the controller 5, allowing for start / stop, spray angle adjustment, and spray volume control. There are two electrical connection parts 3, located on the left and right sides of the exterior of the top housing shell 21. The destructive simulation section 4 is located at the bottom interior of the top housing shell 21.

[0021] As a preferred option, further, such as Figure 3 , Figure 4 , Figure 5 and Figure 6As shown, the electrical connection part 3 includes: a tank housing 31, an electric telescopic rod 32, a sealing mounting plate 33, and an electrical connector 34; the tank housing 31 is fixedly installed on the outer surface of the top chamber housing 21 and is located outside the tank opened on the side wall of the top chamber housing 21; the electric telescopic rod 32 is fixedly installed inside the tank housing 31, and the electric telescopic rod 32 is electrically connected to the controller 5. The electric telescopic rod 32 adopts a small industrial-grade DC electric push rod, which is automatically extended and retracted under the program control of the controller 5, and is used to drive the sealing mounting plate 33 to move closer to or away from the rectifier workpiece in the horizontal direction to complete the overall feeding and retraction action; the sealing mounting plate 33 is fixedly installed on the telescopic end of the electric telescopic rod 32. Inside, the sealing mounting plate 33 moves synchronously with the electric telescopic rod 32. The sealing mounting plate 33 can seal the opening at the side wall of the chamber, prevent the leakage of simulated environmental gas, and ensure the stability of the test environment. The electrical connector 34 is installed on the outside of the sealing mounting plate 33. The electrical connector 34 is electrically connected to the controller 5. The electrical connector 34 has voltage sampling, current sampling, insulation monitoring, and fault protection functions. The electrical connector 34 is used to provide a stable working power to the rectifier under test through the first connecting plug 313 or the second connecting plug 319, and at the same time collect the electrical performance parameters of the rectifier in real time and upload them to the controller 5. Among them, the inner front of the sealing mounting plate 33 is provided with a multi-hole docking component.

[0022] Furthermore, the multi-hole docking component includes: a first mounting plate 35, a first motor 36, a rotating rod 37, a first sliding groove seat 38, a limiting slider 39, a first connecting rod 310, a second sliding groove seat 311, a first slider seat 312, a first connecting plug 313, a second connecting rod 314, a limiting rod 315, and a transmission rod 316; the first mounting plate 35 is arranged vertically in front of the inner side of the sealing mounting plate 33; the first motor 36 is fixedly mounted on the top outer side of the first mounting plate 35, and the first motor 36 is electrically connected to the controller 5. The first motor 36 is a miniature DC geared stepper motor, which drives the rotating rod 37 to rotate under the command of the controller 5, providing a power source for the telescopic insertion action of the multi-hole docking component; the rotating rod 37 One end of the first motor 36 is rotatably mounted on the inner top center of the first mounting plate 35 via a bearing seat. The rotating end of the first motor 36 extends to the inner side of the first mounting plate 35 and is fixedly connected to the axis of the rotating rod 37. The rotating rod 37 is used to convert the rotational motion of the first motor 36 into the up-and-down driving action of the linkage mechanism, realizing transmission conversion. The first slide seat 38 is fixedly mounted on the inner center of the first mounting plate 35. The limiting slider 39 is inserted into the inner side of the first slide seat 38. One end of the first connecting rod 310 is rotatably mounted on the inner center of the limiting slider 39 via a rotating shaft. The other end of the first connecting rod 310 is rotatably connected to the other end of the rotating rod 37 via a rotating shaft. The limiting slider 39 can slide up and down along the inner side of the first slide seat 38, used to connect the first motor 36 to the rotating rod 37. A connecting rod 310 and a transmission rod 316 are used to transmit motion and constrain direction. A second slide block 311 is fixedly installed on the inner bottom end of the first mounting plate 35. A first slider seat 312 is inserted into the inner side of the second slide block 311. There are two first connecting plugs 313, which are detachably installed on the front and rear sides of the inner bottom end of the first slider seat 312 via mounting brackets. The first connecting plugs 313 are electrically connected to the electrical connector 34. There are two second connecting rods 314, one end of which is rotatably installed on the front and rear sides of the inner side of the first slider seat 312 via a rotating shaft. The second connecting rods 314 are used to push the first slider seat 312 under the constraint of the limiting rod 315. 12 moves downward to achieve insertion power transmission; there are two limit rods 315, one end of which is rotatably mounted on the inner side of the first mounting plate 35 via a rotating shaft and located on the front and rear sides of the outer side of the first slide seat 38; the other end of each limit rod 315 is rotatably connected to the other end of each of the two second connecting rods 314 via a rotating shaft; there are two transmission rods 316, one end of which is rotatably mounted on the front and rear ends of the inner side of the limit slider 39 via a rotating shaft; the other end of each transmission rod 316 is rotatably connected to the axis of the rotating shaft connection between the two second connecting rods 314 and the limit rod 315 via a bearing; a single-hole docking component is provided on the rear inner side of the sealing mounting plate 33.

[0023] Furthermore, the single-hole mating component includes: a second mounting plate 317, a first limiting component 318, a second connecting plug 319, and a first miniature electric telescopic rod 320; the second mounting plate 317 is disposed vertically behind the inner side of the sealing mounting plate 33; the first limiting component 318 is fixedly mounted vertically behind the inner side of the second mounting plate 317, the first limiting component 318 adopts a precision linear guide rail module, and the first limiting component 318 is used to constrain the movement direction of the second connecting plug 319 to ensure that the vertical insertion is not skewed; the second connecting plug 319 is fixedly mounted on the inner side of the limiting end of the first limiting component 318 by a mounting bracket, the first... The two connecting plugs 319 and the electrical connector 34 are electrically connected; the first miniature electric telescopic rod 320 is fixedly installed in the upper and lower direction on the inner front of the second mounting plate 317. The telescopic end of the first miniature electric telescopic rod 320 is connected to the limiting end of the first limiting component 318 through a connector. The first miniature electric telescopic rod 320 is electrically connected to the controller 5. The first miniature electric telescopic rod 320 adopts an ultra-small precision electric push rod. The first miniature electric telescopic rod 320 drives the second connecting plug 319 to move up and down by extending and shortening, completing the single-hole docking and disengagement action; the multi-hole docking component and the single-hole docking component are provided with position adjustment components on their outer sides.

[0024] Furthermore, the position adjustment components include: a first slide housing 321, a second limiting assembly 322, a second slider seat 323, a first lead screw assembly 324, a second motor 325, a second slide housing 326, a third limiting assembly 327, a third slider seat 328, a second lead screw assembly 329, and a third motor 330; the first slide housing 321 is fixedly installed on the inner side of the sealing mounting plate 33 in the front-rear direction; there are two second limiting assemblies 322, which are respectively installed at the front and rear ends of the inner and outer sides of the first slide housing 321 in the front-rear direction. The second limiting assemblies 322 adopt high-precision linear guides and are used to provide high-precision front-rear guidance for the second slider seat 323. To eliminate lateral clearance and ensure smooth movement; there are two second slider seats 323, which are respectively installed inside the limiting ends of the front and rear second limiting components 322, and the inner side of the second slider seat 323 extends out of the outer side of the first slide groove housing 321; there are two first lead screw assemblies 324, which are respectively rotatably installed at the front and rear ends of the inner and outer sides of the first slide groove housing 321 through bearing seats, and are located inside the front and rear second limiting components 322. The lead screw nuts of the two first lead screw assemblies 324 are respectively connected to the inner side of the two second slider seats 323. The first lead screw assembly 324 adopts a precision ball screw pair to convert rotary motion into linear motion, realizing High-precision position adjustment in the forward and backward directions; two second motors 325 are installed on the front and rear sides of the interior of the first slide groove housing 321, respectively. The rotating ends of the two second motors 325 are fixedly connected to the screw shafts of the two first lead screw assemblies 324, and the second motors 325 are electrically connected to the controller 5; two second slide groove housings 326 are installed on the inner sides of the two second slider seats 323 in the vertical direction; two third limiting components 327 are installed on the inner sides of the second slide groove housings 326 in the vertical direction, respectively. The third limiting components 327 adopt miniature precision linear guides and are used for the third slider. The seat 328 provides vertical guidance; there are two third slider seats 328, which are respectively installed inside the limiting ends of the two third limiting components 327. The inner side of the third slider seat 328 extends into the second slide groove housing 326, and the inner side of the third slider seat 328 is fixedly connected to the first mounting plate 35 and the second mounting plate 317; there are two second lead screw assemblies 329, which are respectively installed inside the two third limiting components 327. The lead screw nuts of the two second lead screw assemblies 329 are respectively connected to the inner side of the two third slider seats 328. The second lead screw assembly 329 adopts a miniature ball screw pair and is used to achieve high-precision displacement drive in the vertical direction;There are two third motors 330, each mounted on the top of one of the two second slide rail housings 326. The rotating ends of the two first micro electric telescopic rods 320 extend into the interior of the two second slide rail housings 326 and are connected to the top of the screw shaft of the two second lead screw assemblies 329. The third motors 330 are electrically connected to the controller 5. The third motors 330 are micro stepper motors and are used to drive the movement of the second lead screw assemblies 329 to achieve automatic height calibration and precise alignment of the docking plug.

[0025] As a preferred embodiment, the destructive simulation section 4 further includes: a first linear movement module 41, a rotation module 42, a mounting base plate 43, a vertical frame 44, a dual-axis movement module 45, an arc-shaped slide seat 46, an arc-shaped moving seat 47, a semi-arc-shaped worm gear seat 48, a fourth motor 49, a worm 410, a housing 411, a rotating cylinder 412, a fixed seat 413, a rotating shaft 414, a rotating seat 415, a bevel gear set 416, a second miniature electric telescopic rod 417, a conical head 418, a miniature motor 419, and a gear set 420; the first linear movement module 41 is fixedly installed in the middle of the front side of the bottom end inside the tank housing 31 in the front-rear direction, and the first linear movement module 41 and the controller 5. Electrical connection: The first linear motion module 41 adopts an industrial-grade precision linear slide, using ball screw transmission, which can drive the rotating module 42 at its top and the mounting base plate 43 to move back and forth linearly, realizing the precise transfer of the rectifier workpiece to be tested in the test area; the rotating module 42 is fixedly installed on the top of the moving end of the first linear motion module 41, and the rotating module 42 is electrically connected to the controller 5. The rotating module 42 adopts a precision electric rotary table with a self-locking function, which can drive the mounting base plate 43 at its top and the rectifier workpiece above it to rotate 360°, and can adjust the workpiece to the preset test angle; the mounting base plate 43 is installed on the top of the rotating end of the rotating module 42, and the mounting base... Plate 43 serves as the mounting carrier for the rectifier workpiece, used to stably place and fix the rectifier to be tested, preventing workpiece displacement during testing; vertical frame 44 is installed inside the top housing shell 21 and located behind the first linear movement module 41; dual-axis movement module 45 is installed above the front side of vertical frame 44, and is electrically connected to controller 5; arc-shaped slide seat 46 is fixedly installed on the front side of the moving end of dual-axis movement module 45 by L-shaped bracket, arc-shaped slide seat 46 provides arc-shaped motion guide for arc-shaped moving seat 47, ensuring that arc-shaped moving seat 47 can slide smoothly along a preset arc trajectory, realizing the left and right adjustment of the puncture angle; arc-shaped moving seat 47 is snapped into arc-shaped slide seat 41. Below the outer side of 6; the semi-circular worm gear seat 48 is installed in the middle of the inner side of the arc-shaped moving seat 47; the fourth motor 49 is installed at the right end of the outer side of the arc-shaped slide seat 46, and the rotating end of the fourth motor 49 extends into the inner side of the arc-shaped slide seat 46. The fourth motor 49 is electrically connected to the controller 5. The fourth motor 49 is a servo motor, which can drive the worm 410 to rotate clockwise or counterclockwise. Through the meshing of the worm 410, the semi-circular worm gear seat 48 and the arc-shaped moving seat 47 are driven to move, so as to achieve precise control of the puncture angle; the worm 410 is installed at the rotating end of the fourth motor 49, and the worm 410 meshes with the semi-circular worm gear seat 48; the housing 411 is installed at the bottom end of the arc-shaped moving seat 47 through the bracket;The rotating cylinder 412 is rotatably mounted in the inner cavity of the slot on the right side of the housing 411 via bearings. The left and right ends of the rotating cylinder 412 extend into the inner cavity and outer surface of the housing 411, respectively. Driven by the gear set 420, the rotating cylinder 412 rotates, thereby causing the fixed seat 413 and the piercing component below it to deflect forward or backward, achieving coarse adjustment of the piercing angle and laying the foundation for subsequent precise fine-tuning. The fixed seat 413 is mounted on the outer right end of the rotating cylinder 412 and is V-shaped. The rotating shaft 414 is rotatably mounted in the inner cavity of the rotating cylinder 412 via bearings in the left-right direction. The left and right ends of the rotating shaft 414 extend outward from the outer surface of the rotating cylinder 412, respectively. 4 can transmit power from the micro motor 419, which, driven by the gear set 420, achieves rotational motion, thereby driving the bevel gear set 416 to move, providing power for the pitch adjustment of the rotating seat 415, and achieving precise fine-tuning of the puncture angle; the rotating seat 415 is rotatably mounted on the bottom of the fixed seat 413 via a rotating shaft. The rotating seat 415 is V-shaped. Driven by the bevel gear set 416, the rotating seat 415 deflects forward or backward below the fixed seat 413, achieving secondary fine-tuning of the puncture angle, ensuring that the puncture angle accurately matches the preset test requirements; one end of the bevel gear set 416 is connected by a gear key to the outer right end of the rotating shaft 414, and the other side of the bevel gear set 416 is fixedly mounted on the rotating shaft 415. At the bottom of the shaft of seat 415, the bevel gear set 416 adopts a 60° precision bevel gear transmission set, which can convert the horizontal rotational motion of the rotating shaft 414 into the rotation of the rotating seat 415, realizing the conversion of power direction, driving the rotating seat 415 and the puncture component below to finely adjust the angle, ensuring that the puncture angle is precise and controllable; the second micro electric telescopic rod 417 is fixedly installed on the top right side of the rotating seat 415 in the vertical direction. The telescopic end of the second micro electric telescopic rod 417 extends out of the lower surface of the rotating seat 415. The second micro electric telescopic rod 417 is electrically connected to the controller 5. The second micro electric telescopic rod 417 adopts a high-precision micro electric push rod, which can drive the conical head 418 to make vertical linear motion, performing the puncture. The piercing action, through precise control of the extension and retraction amount and speed, simulates the force and speed of foreign object piercing the rectifier in a real vehicle, achieving controllable destructive testing; the conical head 418 is fixedly installed at the bottom of the extension end of the second micro electric telescopic rod 417; there are two micro motors 419, which are respectively installed on the front and rear sides of the inner cavity of the housing 411. The micro motors 419 are electrically connected to the controller 5. The micro motors 419 adopt small precision stepper motors, which can provide power for the rotation of the rotating drum 412 and the rotating shaft 414. The power is transmitted to the corresponding components through the gear set 420, realizing the independent rotation of the rotating drum 412 and the rotating shaft 414, thereby completing the coarse and fine adjustment of the piercing angle;There are two gear sets 420. One side of each gear set 420 is fixedly mounted on the rotating end of each of the two micro motors 419. The other side of each gear set 420 is mounted on the outer left side of the rotating drum 412 and the rotating shaft 414, respectively.

[0026] The working principle is as follows: Step 1: The staff opens the sealed door on the front side of the top cabin shell 21, places the rectifier workpiece to be tested on the surface of the mounting base plate 43, and after installation, closes the sealed door on the front side of the top cabin shell 21. The internal preset test program is started again through the controller 5. After the program starts, the controller 5 synchronously controls the operation of the first linear movement module 41 and the rotation module 42. The first linear movement module 41 drives the rotation module 42 to move to the rear, thereby moving the mounting base plate 43 at the top of the rotation module 42 and the rectifier workpiece on it to the test area of ​​the top cabin shell 21. The rotation module 42 starts, driving the mounting base plate 43 to rotate the rectifier workpiece above it to the preset test angle, preparing for subsequent wiring and destructive testing. Step 2: After the workpiece is positioned, the pre-programmed program inside the controller 5 synchronously starts the electric telescopic rods 32, the second motor 325, and the third motor 330 of the left and right electrical connection parts 3. The electric telescopic rods 32 extend or shorten, driving the corresponding sealing mounting plate 33 to move inward toward the workpiece or outward away from the workpiece inside the top housing shell 21. This, in turn, causes the second motor 325, the third motor 330, and other components on the sealing mounting plate 33 to move to the position corresponding to the workpiece wiring port. The second motors 325 on the front and rear sides start respectively, driving the lead screw in the first lead screw assembly 324 at the corresponding position to rotate. The lead screw drives the lead screw nut to move, thereby driving the... The second slider seat 323, connected by a nut, moves to a designated position in the front-back direction under the constraint and guidance of the second limiting component 322, thereby achieving position adjustment in the front-back direction. The third motors 330 on both the front and rear sides start synchronously, driving the lead screw in the corresponding position of the second lead screw assembly 329 to rotate. Through the lead screw nut, the third slider seat 328 is driven. Under the constraint and guidance of the third limiting component 327, the third slider seat 328 moves to a designated position in the up-down direction. The third slider seats 328 on both the front and rear sides respectively drive the first mounting plate 35 of the multi-hole docking component and the second mounting plate 317 of the single-hole docking component to move directly above the rectifier terminal. Step 3: When the rectifier under test has a dual-pin connector, the first mounting plate 35 moves directly above the dual-pin connector of the rectifier. The pre-programmed program inside the controller 5 synchronously controls the first motor 36 in the left and right electrical connection parts 3 to start. After the first motor 36 starts, it drives the rotating rod 37 to rotate around the bearing seat. When the rotating rod 37 rotates, it drives one end of the first connecting rod 310 connected to it to make a circumferential movement. Then, through the other end of the first connecting rod 310, it pulls the limiting slider 39, causing the limiting slider 39 to make up-and-down reciprocating movement inside the first slide seat 38. When the limiting slider 39 moves downward, it will synchronously drive the two front and rear transmissions connected to it. The moving rod 316 moves downward, and the transmission rod 316 then drives the second connecting rod 314 and the limiting rod 315 connected to it to move downward synchronously. Under the limiting constraint of the limiting rod 315, the connection between the second connecting rod 314 and the limiting rod 315 rotates outward around the axis, gradually unfolding from the initial folded state to the vertical state. At the same time, it pushes the first slider seat 312 to move downward along the inner side of the second slide groove seat 311. The first slider seat 312 then drives the two first connecting plugs 313 on the front and rear sides of its bottom end to move downward synchronously, so that the two first connecting plugs 313 are inserted into the double-pin terminal of the rectifier, completing the automatic docking of the double pins. Step 4: When the wiring port of the rectifier to be tested is a single-socket type, the internal preset program of the controller 5 synchronously controls the first micro electric telescopic rod 320 in the left and right electrical connection parts 3 to start. The telescopic end of the first micro electric telescopic rod 320 pushes the limiting end of the first limiting component 318, which drives the second connecting plug 319 connected to the limiting end. Under the limiting and guiding action of the first limiting component 318, the second connecting plug 319 moves downward in a vertical direction and is inserted into the single-socket wiring port of the rectifier, completing the automatic docking of the single-socket. Step 5: After the electrical connection is completed, the pre-set program inside the controller 5 controls the electrical connectors 34 in the electrical connection parts 3 on both sides to start. The electrical connectors 34 supply a stable working voltage to the rectifier workpiece through the pre-connected first connector 313 or second connector 319 to ensure that the rectifier can start and run normally. At the same time, the electrical connectors 34 monitor the core electrical parameters of the rectifier such as input and output voltage and current in real time and feed the monitoring data back to the controller 5 in real time for subsequent performance analysis. The controller 5 simultaneously starts the environmental simulation system 6 and the exhaust system 8. The environmental simulation system 6 continuously supplies high-temperature and low-temperature gas or high-temperature and low-temperature steam to the inside of the top chamber shell 21 through a dedicated pipe connected to the top chamber shell 21, flexibly adjusting the temperature and humidity environment inside the top chamber shell 21 to simulate various extreme working environments that the new energy vehicle rectifier may encounter in actual use. The exhaust system 8 operates simultaneously to ventilate and circulate the gas inside the top chamber shell 21. On the one hand, it works with the environmental simulation system 6 to quickly adjust the temperature and humidity inside the chamber to the preset value and keep it stable. On the other hand, it promptly removes any harmful gases that may be generated inside the chamber to ensure the safety of the test environment. Step 6: When an extreme performance test of mechanical damage is required on the rectifier, the pre-programmed program inside the controller 5 activates the dual-axis movement module 45, the fourth motor 49, the micro motor 419, and the second micro electric telescopic rod 417. After the dual-axis movement module 45 is activated, it makes precise adjustments in the horizontal and vertical dual-axis directions, driving the arc-shaped slide seat 46 to move and approach the preset damage position above the rectifier workpiece. The fourth motor 49 drives the worm gear 410 to rotate, and the worm gear 410 drives the semi-arc worm wheel seat 48 to move. The semi-arc worm wheel seat 48 drives the arc-shaped moving seat 47 connected to it, so that the arc-shaped moving seat 47 moves to the left or right along the outer arc-shaped track of the arc-shaped slide seat 46 to adjust the puncture angle. The micro motors 419 on both sides drive the gears in the corresponding gear sets 420 to rotate clockwise or counterclockwise. Through the transmission action of the gear set 420, the rotating drum 412 and the rotating shaft 414 are driven to rotate respectively. When the rotating drum 412 rotates, it drives the fixed seat 413 at its right end to deflect forward or backward to adjust to the preset tilt angle. When the rotating shaft 414 rotates, it drives the bevel gear in the bevel gear set 416 to mesh and transmit, thereby driving the rotating seat 415 to deflect forward or backward below the fixed seat 413 to further fine-tune the puncture angle. After the conical head 418 is adjusted to the preset puncture angle and position, the second micro electric telescopic rod 417 is started and extended, driving the conical head 418 to move downward and insert into the outer shell of the rectifier workpiece to perform destructive puncture on the surface of the rectifier, simulating the damage environment of the rectifier being hit and punctured by sharp foreign objects in a real vehicle, so as to detect the electrical performance and safety status of the rectifier after mechanical damage. Step 7: During the entire test, if the rectifier component inside the top cabin shell 21 catches fire due to electrical faults, excessive destructive testing, or other reasons, the controller 5 controls the operation of the robotic arm 22, the fire extinguishing system 7, and the multi-directional nozzle 23. The robotic arm 22 moves the multi-directional nozzle 23 at the bottom of its moving end to directly above the location of the rectifier component catching fire. The fire extinguishing system 7 continuously supplies extinguishing agent into the multi-directional nozzle 23. The multi-directional nozzle 23, through its multi-angle spraying design, evenly sprays the extinguishing agent onto the surface of the catching fire, quickly extinguishing the fire and preventing its spread.

[0027] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A comprehensive performance testing device for rectifiers, characterized in that, include: Bottom box shell (1); The detection mechanism (2) is located on top of the bottom housing shell (1); The controller (5) is installed on the front side of the detection mechanism (2); An environmental simulation system (6) is installed inside the bottom housing (1), and the environmental simulation system (6) is electrically connected to the controller (5); Fire extinguishing system (7) is installed on the rear side of the bottom housing shell (1), and the fire extinguishing system (7) is electrically connected to the controller (5); An exhaust system (8) is installed on top of the detection mechanism (2), and the exhaust system (8) is electrically connected to the controller (5).

2. The comprehensive performance testing device for rectifiers according to claim 1, characterized in that, The testing organization (2) includes: The top chamber shell (21) is fixedly installed on the top of the outer surface of the bottom chamber shell (1). The controller (5) is embedded in the groove opened on the top of the door of the top chamber shell (21). The environmental simulation system (6) is connected to the interior of the top chamber shell (21) through a pipe. The exhaust system (8) is embedded in the slot opened on the top of the outer surface of the top chamber shell (21). A robotic arm (22) is fixedly installed inside the top of the top cabin shell (21), and the robotic arm (22) is electrically connected to the controller (5); A multi-directional nozzle (23) is fixedly installed at the bottom of the moving end of the robotic arm (22). The multi-directional nozzle (23) and the fire extinguishing system (7) are connected by a connecting pipe. The multi-directional nozzle (23) and the controller (5) are electrically connected. Electrical connection part (3), the number of electrical connection parts (3) is two, and the two electrical connection parts (3) are respectively arranged on the left and right sides of the outer side of the top cabin shell (21); The destructive simulation section (4) is located at the bottom of the interior of the top hull shell (21).

3. The comprehensive performance testing device for rectifiers according to claim 2, characterized in that, The electrical connection portion (3) includes: The tank shell (31) is fixedly installed on the outer surface of the top cabin shell (21) and located outside the tank opened on the side wall of the top cabin shell (21); An electric telescopic rod (32) is fixedly installed inside the outer shell (31) of the tank body, and the electric telescopic rod (32) is electrically connected to the controller (5); A sealing mounting plate (33) is fixedly installed on the inner side of the telescopic end of the electric telescopic rod (32); An electrical connector (34) is installed on the outside of the sealed mounting plate (33), and the electrical connector (34) is electrically connected to the controller (5).

4. The comprehensive performance testing device for rectifiers according to claim 2, characterized in that, The sealing mounting plate (33) has a multi-hole docking component on its inner front side and a single-hole docking component on its inner rear side. The multi-hole docking component and the single-hole docking component have a position adjustment component on their outer sides.

5. The comprehensive performance testing device for rectifiers according to claim 3, characterized in that, The porous docking component includes: The first mounting plate (35) is disposed in the upper and lower direction in front of the inner side of the sealing mounting plate (33); The first motor (36) is fixedly installed on the top outer side of the first mounting plate (35), and the first motor (36) is electrically connected to the controller (5); The rotating rod (37) is rotatably mounted at the middle of the inner top of the first mounting plate (35) through a bearing seat. The rotating end of the first motor (36) extends to the inner side of the first mounting plate (35) and is fixedly connected to the axis of the rotating rod (37). The first slide seat (38) is fixedly installed in the middle of the inner side of the first mounting plate (35); The limiting slider (39) is inserted into the inner side of the first slide seat (38); The first connecting rod (310) is rotatably mounted on the inner middle of the limiting slider (39) via a rotating shaft at one end, and the other end of the first connecting rod (310) is rotatably connected to the other end of the rotating rod (37) via a rotating shaft.

6. The comprehensive performance testing device for rectifiers according to claim 4, characterized in that, The porous docking component also includes: The second slide seat (311) is fixedly installed on the inner bottom end of the first mounting plate (35); The first slider seat (312) is inserted into the inner side of the second slide seat (311); The first connector (313) has two connectors. The two connectors (313) are detachably mounted on the front and rear sides of the inner bottom of the first slider seat (312) via mounting brackets. The first connectors (313) are electrically connected to the electrical connector (34). The second connecting rod (314) has two parts, and one end of each of the two second connecting rods (314) is rotatably mounted on the front and rear ends of the inner side of the first slider seat (312) through a rotating shaft. Limiting rod (315), there are two limiting rods (315), one end of each limiting rod (315) is rotatably mounted on the inner side of the first mounting plate (35) via a rotating shaft, and is located on the front and rear sides of the outer side of the first sliding seat (38), and the other end of each limiting rod (315) is rotatably connected to the other end of each of the two second connecting rods (314) via a rotating shaft; The transmission rod (316) consists of two rods. One end of each transmission rod (316) is rotatably mounted on the inner front and rear ends of the limiting slider (39) via a rotating shaft. The other ends of each transmission rod (316) are rotatably connected to the shafts of the two second connecting rods (314) and the limiting rod (315) via bearings.

7. The comprehensive performance testing device for rectifiers according to claim 5, characterized in that, The single-hole docking component includes: The second mounting plate (317) is disposed on the inner rear side of the sealing mounting plate (33) in the vertical direction; The first limiting component (318) is fixedly installed on the inner rear side of the second mounting plate (317) in the vertical direction; The second connector (319) is fixedly installed inside the limiting end of the first limiting component (318) by a mounting bracket, and the second connector (319) is electrically connected to the electrical connector (34). The first miniature electric telescopic rod (320) is fixedly installed in the upper and lower direction on the inner front of the second mounting plate (317). The telescopic end of the first miniature electric telescopic rod (320) is connected to the limiting end of the first limiting component (318) through a connector. The first miniature electric telescopic rod (320) and the controller (5) are electrically connected.

8. The comprehensive performance testing device for rectifiers according to claim 6, characterized in that, The destructive simulation section (4) includes: The first linear motion module (41) is fixedly installed in the middle of the front side of the bottom end of the tank shell (31) along the front-back direction. The first linear motion module (41) and the controller (5) are electrically connected. A rotating module (42) is fixedly installed on the top of the moving end of the first linear moving module (41), and the rotating module (42) is electrically connected to the controller (5); The mounting base plate (43) is mounted on the top of the rotating end of the rotating module (42); The vertical frame (44) is installed inside the top cabin shell (21) and is located behind the first linear movement module (41); A dual-axis moving module (45) is installed on the front side above the vertical frame (44), and the dual-axis moving module (45) is electrically connected to the controller (5).

9. The comprehensive performance testing device for rectifiers according to claim 7, characterized in that, The destructive simulation section (4) also includes: The arc-shaped slide seat (46) is fixedly installed on the front side of the moving end of the dual-axis moving module (45) by an L-shaped bracket; The arc-shaped movable seat (47) is engaged with the lower outer side of the arc-shaped sliding seat (46); A semi-circular worm gear seat (48) is installed on the inner middle part of the arc-shaped movable seat (47); The fourth motor (49) is installed on the outer right end of the arc-shaped slide seat (46), and the rotating end of the fourth motor (49) extends into the inner side of the arc-shaped slide seat (46). The fourth motor (49) is electrically connected to the controller (5). A worm (410) is installed at the rotating end of the fourth motor (49), and the worm (410) meshes with a semi-arc worm wheel seat (48); The housing (411) is mounted on the bottom end of the arc-shaped movable seat (47) by a bracket; The rotating cylinder (412) is rotatably mounted in the inner cavity of the slot on the right side of the housing (411) via a bearing. The left and right ends of the rotating cylinder (412) extend to the inner cavity of the housing (411) and the outside of the housing (411), respectively. A fixing seat (413) is installed on the outer right end of the rotating drum (412), and the fixing seat (413) is V-shaped; A rotating shaft (414) is rotatably mounted in the inner cavity of a rotating cylinder (412) via bearings in the left-right direction, with the left and right ends of the rotating shaft (414) extending out of the outside of the rotating cylinder (412); A rotating seat (415) is rotatably mounted above the bottom of a fixed seat (413) via a rotating shaft. The rotating seat (415) is V-shaped. The bevel gear set (416) has a gear key connected to the outer right end of the rotating shaft (414) at one end, and the other gear of the bevel gear set (416) is fixedly installed at the bottom end of the shaft of the rotating seat (415).

10. A comprehensive performance testing device for rectifiers according to claim 8, characterized in that, The destructive simulation section (4) also includes: The second miniature electric telescopic rod (417) is fixedly installed on the top right side of the rotating seat (415) in the vertical direction. The telescopic end of the second miniature electric telescopic rod (417) extends out of the lower surface of the rotating seat (415). The second miniature electric telescopic rod (417) and the controller (5) are electrically connected. A conical head (418) is fixedly installed at the bottom of the telescopic end of the second miniature electric telescopic rod (417); Two micro motors (419) are installed on the front and rear sides of the inner cavity of the housing (411), respectively. The micro motors (419) are electrically connected to the controller (5). The gear set (420) consists of two gear sets (420). One side of each gear set (420) is fixedly mounted on the rotating end of two micro motors (419), and the other side of each gear set (420) is mounted on the outer left side of the rotating drum (412) and the rotating shaft (414).

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