Test bench for electromechanical integration module insulation detection of electric vehicle

Abstract

The utility model discloses a detection platform for electric automobile electromechanical integration module insulation detection belongs to electric automobile spare part detection technical field, including base, detection probe and positioning plate still includes the fixed establishment for clamping module, the fixed establishment includes the protection shell of along base slide rail sliding, the protection shell is by cylinder drive, be equipped with the adjusting lever in the protection shell, the sliding block one of driving clamp block is slidably equipped on the adjusting lever, be equipped with the clamping groove no.

Description

Technical Field

[0001] This utility model relates to the field of electric vehicle component testing technology, and in particular to a testing platform for insulation testing of electric vehicle electromechanical integrated modules. Background Technology

[0002] With the rapid development of the new energy vehicle industry, the core powertrain of electric vehicles, namely the highly integrated electromechanical module consisting of motor, electronic control and reducer, is directly related to the performance of the whole vehicle and the safety of the driver and passengers. Insulation performance is one of the key indicators for measuring the safety of such high-voltage modules. In the manufacturing process, strict insulation testing of electromechanical integrated modules is an essential step.

[0003] To perform insulation testing, the electromechanical integrated module needs to be placed on a dedicated testing platform. The main function of the testing platform is to provide a stable support platform for the module and to use a clamping mechanism to accurately position and fix it, so as to ensure that the test probe can make a stable and reliable electrical connection with the preset test points on the module, thereby obtaining accurate test data.

[0004] In the existing technology, the testing stations generally have certain structural defects. On the one hand, the shape and size specifications of electromechanical integrated modules produced by different models and manufacturers often differ. Most of the existing testing station clamping mechanisms adopt fixed size or very limited adjustment range structures, resulting in poor versatility and inability to flexibly adapt to the clamping needs of modules of different sizes. When faced with modules with mismatched sizes, the clamping effect is greatly reduced, resulting in unstable clamping and inaccurate positioning.

[0005] On the other hand, even if some testing stations have a certain degree of adjustment capability, the clamping method mostly relies on the simple method of manual screw locking. This method is difficult to guarantee the consistency and stability of the clamping force each time. During the testing process, even slight vibrations or the weight of the module itself may cause the position to shift, resulting in poor contact between the testing probe and the testing point. This leads to fluctuations or even serious deviations in the insulation resistance measurement results, directly affecting the reliability of product quality control.

[0006] Therefore, this utility model proposes a testing platform for insulation testing of electromechanical integrated modules in electric vehicles to address the shortcomings of existing technologies. Utility Model Content

[0007] In view of the problems existing in the testing station for insulation testing of electromechanical integrated modules of electric vehicles, such as poor versatility of clamping mechanism, inability to stably clamp modules of different sizes, and low reliability of test data due to unstable clamping force, this utility model aims to provide a testing station for insulation testing of electromechanical integrated modules of electric vehicles with an improved structure that can effectively solve the above problems.

[0008] This utility model provides a testing platform for insulation testing of electromechanical integrated modules in electric vehicles, comprising: a base, a testing probe, a positioning plate, and a fixing mechanism.

[0009] The fixing mechanism, as an innovative component, includes a slide rail, a protective shell, a cylinder, an adjusting rod, a slider one, a clamping block, a slot two, and a clamping block.

[0010] The cylinder body is fixed on the base, the piston rod drives the protective shell to slide along the slide rail fixed on the base, the front and rear ends of the adjusting rod are fixedly connected to the inner wall of the protective shell, the slider one is slidably sleeved on the outer wall of the adjusting rod, the clamping block is fixed to the slider one, at least one slot is opened on the adjusting rod, and a corresponding slot two is opened at the bottom of the inner wall of the protective shell.

[0011] Furthermore, the locking block, slider one, adjusting rod, locking slot one, and locking slot two are combined in a detachable interlocking manner. Specifically, the locking block can be detachably passed through locking slot one on slider one and adjusting rod in sequence, and finally engages with locking slot two. This combination allows slider one to slide freely to adjust the clamping width when the locking block is pulled out, and after the locking block is inserted, the position of slider one can be firmly locked by cooperating with locking slot one and locking slot two at the same time, thereby ensuring the adaptability and stability of clamping modules of different sizes.

[0012] Preferably, the fixing mechanism includes two sets of clamping components symmetrically arranged along the width direction of the base. This symmetrical layout not only ensures structural stability but also allows for the application of uniform clamping force from both sides of the module simultaneously, preventing the module from deflecting due to force applied to one side, thereby further improving the stability of clamping and the accuracy of positioning.

[0013] Preferably, the testing station further includes a protective mechanism, which is set on the base and covers the fixed mechanism. The protective mechanism consists of a shell, a groove opened on the inner wall of the shell, a protective plate, and two sliders fixed on both sides of the protective plate. An observation port is also opened on the protective plate. This design effectively isolates the operator from the potentially electrified testing area without hindering the testing operation, ensuring personal safety. At the same time, the observation port enables visual monitoring of the testing process.

[0014] Preferably, the protective plate can slide along the length of the outer shell through the sliding engagement of the second slider and the sliding groove. The sliding structure makes the protective plate like a safety door, which can be easily opened to place or take out the module to be tested. When closed, it forms a closed safety environment. The design is ingenious and practical.

[0015] Preferably, an elastic buffer layer is provided on the adjacent side of the clamping block. The elastic buffer layer is made of rubber or polyurethane polymer material. When clamped, it can not only increase the friction to prevent the module from sliding, but also effectively absorb the impact and disperse the pressure, avoiding damage to the module surface due to excessive clamping force, thus playing an important protective role.

[0016] Preferably, the adjusting rod has multiple slots evenly distributed along its length. This evenly distributed array design provides multiple discrete and precise settings for adjusting the clamping width, allowing the operator to quickly select the closest locking point based on the actual size of the module, greatly improving the efficiency of adjustment and the repeatability of positioning.

[0017] Preferably, the locking block is designed as a stepped structure, with the upper narrow section matching the first locking slot and the lower thick section matching the second locking slot. This special shape design, by using different diameter sections and different locking slots, achieves simultaneous horizontal and vertical locking during the insertion action. The structure is simple but greatly enhances the reliability of locking and effectively resists impacts and vibrations from all directions.

[0018] This utility model has the following beneficial effects:

[0019] 1. This utility model solves the problems of existing detection table clamping mechanisms being structurally simple, unable to adapt to modules of different sizes, resulting in unstable clamping and affecting the accuracy of detection data by setting a protective shell driven by a cylinder and setting a slider and a clamping block inside the protective shell that can slide on the adjusting rod and be locked at multiple points by a locking block. It can quickly adjust the clamping width to adapt to modules of various specifications and the clamping force is stable and reliable, effectively ensuring detection accuracy.

[0020] 2. This utility model solves the problem of lack of effective safety isolation in the detection process and the risk of operators accidentally touching high-voltage live parts in the prior art by setting a protective mechanism including a sliding protective plate with an observation port. It effectively isolates the operator from the high-voltage detection area, which can not only prevent safety accidents but also facilitate the observation of the detection process and improve the overall operational safety.

[0021] 3. This utility model integrates the adjustable fixing mechanism and the safety protection mechanism with the observation port on the same base, and uses a slide rail to guide the movement of the protective shell. This solves the problems of the existing equipment having scattered functional parts, loose structure, and cumbersome operation process. The structure is compact, the function is highly integrated, the operation process is clear and coherent, and the overall practicality and stability of the equipment are improved. Attached Figure Description

[0022] Figure 1 This is a perspective view of the testing platform for insulation testing of electromechanical integrated modules in electric vehicles proposed in this utility model;

[0023] Figure 2 This is a cross-sectional view of the outer shell of the testing platform for insulation testing of electromechanical integrated modules in electric vehicles, as proposed in this utility model.

[0024] Figure 3 This is a schematic diagram of the fixing mechanism of the testing platform for insulation testing of electromechanical integrated modules in electric vehicles proposed in this utility model;

[0025] Figure 4 This is a split view of the card block of the testing platform for insulation testing of electromechanical integrated modules in electric vehicles proposed in this utility model;

[0026] Figure 5 This is a cross-sectional view of the protective shell of the testing platform for insulation testing of electromechanical integrated modules in electric vehicles, as proposed in this utility model.

[0027] Legend:

[0028] 1. Base; 2. Detection probe; 3. Fixing mechanism; 301. Cylinder; 302. Protective shell; 303. Adjusting rod; 304. Slider 1; 305. Clamping block; 306. Slot 1; 307. Clamping block; 308. Slide rail; 309. Slot 2; 4. Protective mechanism; 401. Outer shell; 402. Protective plate; 403. Slider 2; 404. Slide groove; 405. Observation port; 5. Positioning plate. Detailed Implementation

[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0030] Example:

[0031] Please refer to Figures 1 to 5 This utility model provides a testing platform for insulation testing of electromechanical integrated modules in electric vehicles, which aims to solve the problems of poor adaptability of the clamping mechanism leading to unstable clamping and insufficient safety protection during the testing process in the prior art.

[0032] like Figure 1 and Figure 2As shown, the test bench for insulation testing of electromechanical integrated modules of electric vehicles includes a base 1, a test probe 2, a positioning plate 5 and a fixing mechanism 3 disposed on the top of the base 1. The base 1 is used to provide a mounting base for the entire test bench. The test probe 2 is installed at the top rear end of the base 1. The positioning plate 5 is disposed on the top of the base 1 and located at the front end of the test probe 2, and is used to provide a rearward positioning reference surface for the electromechanical integrated module to be tested.

[0033] Fixing mechanism 3 is used to stably clamp the electromechanical integrated module to be tested, such as Figure 3 and Figure 4 As shown, the structure of the fixing mechanism 3 includes a slide rail 308 fixedly connected to the top of the base 1, and a protective shell 302 slidably connected to the bottom of the slide rail 308. A cylinder 301 is also fixed to the base 1, with its cylinder body fixed to the base 1. The piston rod drives the protective shell 302 to reciprocate along the extension direction of the slide rail 308. An adjusting rod 303 is provided inside the protective shell 302, with its front and rear ends fixedly connected to the inner wall of the protective shell 302. A slider 304 is slidably mounted on the outer wall of the adjusting rod 303, and a clamping block 305 is fixedly connected to the slider 304 for... Finally, it makes contact with the module under test. In order to adjust and lock the clamping width, the adjusting rod 303 has a slot 306, and the bottom of the inner wall of the protective shell 302 has a corresponding slot 309. Through the detachable locking block 307, it can pass through the slider 304 and the locking block 306 on the adjusting rod 303 in sequence, and finally engage with the locking block 309. This structure allows the slider 304 to drive the clamping block 305 to slide freely along the adjusting rod 303 to adjust the spacing when the locking block 307 is pulled out. When the locking block 307 is inserted and engaged, the position of the slider 304 is firmly locked.

[0034] Please refer to Figure 3 , Figure 4 and Figure 5 The fixing mechanism 3 includes two sets of clamping assemblies symmetrically arranged along the width direction of the base 1. The clamping assemblies are the protective shell 302 and the adjustment and locking unit installed inside. The adjustment rod 303 serves as the basic component of the adjustment and locking unit, and its two ends are fixedly connected to the opposite inner walls of the protective shell 302. Multiple slots 306 are evenly distributed along the length direction on the rod body of the adjustment rod 303. This evenly distributed arrangement is intended to provide multiple selectable locking positions for the slider 304. The slider 304 is slidably sleeved on the outer wall of the adjustment rod 303. The side of the clamping block 305 facing away from the module to be tested is fixedly connected to the slider 304. An elastic buffer layer is provided on the adjacent side of the clamping block 305 to protect the surface of the module and increase the friction when clamped.

[0035] The key lies in the locking function of the locking block 307. The locking block 307 is designed with a stepped structure. The diameter of the upper narrow section matches the width of the first slot 306, while the size of the lower thicker section matches the second slot 309 opened at the bottom of the inner wall of the protective shell 302. During assembly and locking, the upper narrow section of the locking block 307 passes through the through hole reserved in the slider 304 and a selected slot 306 on the adjusting rod 303 from top to bottom. The lower thicker section then enters and engages in the second slot 309 at the bottom of the protective shell 302. This structure allows the locking block 307 to limit and lock the slider 304 in both vertical and horizontal directions. This ensures that when the cylinder 301 drives the protective shell 302 to move and apply clamping force, the positions of the slider 304 and the clamping block 305 will not move, thus ensuring the stability and reliability of clamping.

[0036] As a preferred embodiment, in order to provide effective safety protection during the testing process and facilitate operator observation, the testing station also includes a protective mechanism 4, please refer to... Figure 2 and Figure 5 The protective mechanism 4 is mounted on the base 1 and covers the fixing mechanism 3. The protective mechanism 4 includes a housing 401 fixed to the top of the base 1 and a protective plate 402 that can slide on the housing 401. A groove 404 is provided on the inner wall of the housing 401. Sliding blocks 403 are fixed on the outer walls of both sides of the protective plate 402. The sliding blocks 403 slide with the groove 404, so that the protective plate 402 can slide smoothly along the length of the housing 401, thereby selectively opening or closing the operating space at the top of the base 1. An observation port 405 is also provided on the protective plate 402 for safe observation of the internal testing process when the protective plate 402 is closed.

[0037] As a preferred embodiment, in order to enhance the stability of clamping and protect the surface of the module under test from damage, an elastic buffer layer is fixedly connected to the adjacent side surface of the clamping block 305. The elastic buffer layer is preferably made of rubber or polyurethane, a material with good elasticity and coefficient of friction.

[0038] As a preferred embodiment, in order to achieve precise adjustment of the clamping width in multiple positions to accommodate modules of different sizes, the adjusting rod 303 is provided with multiple slots 306 evenly distributed along its length, and each slot 306 constitutes an independent locking position point.

[0039] As a further optimized implementation, in order to make the locking of slider 304 more secure and reliable and prevent loosening under high clamping force, the locking block 307 adopts a stepped structure. The upper narrow section is used to pass through slider 304 and fit into the slot 306 on the adjusting rod 303, while the lower thick section is used to fit tightly into the slot 309 at the bottom of the inner wall of the protective shell 302. With this structure, the locking block 307 can lock slider 304 in both vertical and horizontal directions at the same time, ensuring absolute fixation of the position.

[0040] Working principle: When performing the inspection, first pull the protective plate 402 of the protective mechanism 4 forward. The sliders 403 on both sides of the protective plate 402 slide in the grooves 404 on the inner wall of the outer shell 401, thereby opening the operating area at the top of the base 1. Then, place the electromechanical integrated module to be inspected on the base 1, so that the rear end fits against the front end of the positioning plate 5 to complete the initial positioning. Next, according to the width of the module, the operator pulls out the locking block 307 in the fixing mechanism 3 upward, so that the locking block 307 is released from locking the slider 304. At this time, the slider 304 can slide freely on the adjusting rod 303 with the clamping block 305. When adjusted to the appropriate position, press the locking block 307 downward. The upper narrow section of the stepped structure passes through the slider 304 and engages with the corresponding slot 306 on the adjusting rod 303. At the same time, the lower thick section is inserted into the slot 309 at the bottom of the protective shell 302, thereby completing the setting and locking of the clamping width.

[0041] After manual adjustment, the cylinder 301 on the base 1 is activated. The piston rod of the cylinder 301 pushes the protective shell 302 forward. The bottom of the protective shell 302 moves smoothly towards the center under the guidance of the slide rail 308 until the clamping blocks 305 on both sides are tightly attached to the outer wall of the module to be tested, applying a stable and uniform clamping force. After clamping, the protective plate 402 is pushed back to the closed position. At this time, the probe of the detection probe 2 extends and contacts the designated detection point of the module to start insulation testing. The operator can safely monitor the whole process through the observation port 405 on the protective plate 402. Through the coordinated action of the fixing mechanism 3 and the protective mechanism 4, this utility model effectively solves the problem of adaptability to clamping modules of different sizes and ensures the stability and safety of the testing process.

Claims

1. A test bench for insulation testing of electromechanical integrated modules of electric vehicles, comprising a base (1) and a test probe (2) and a positioning plate (5) disposed on the top of the base (1); Its features are, It also includes a fixing mechanism (3), which is disposed on the base (1) and includes: a slide rail (308), a protective shell (302), a cylinder (301), an adjusting rod (303), a slider (304), a clamping block (305), a slot (309), and a clamping block (307). The slide rail (308) is fixedly connected to the top of the base (1), the bottom of the protective shell (302) is slidably connected to the slide rail (308), the cylinder body of the cylinder (301) is fixed on the base (1), and the piston rod drives the protective shell (302) to move along the slide rail (308). The adjusting rod (303) moves forward... The rear end is fixedly connected to the inner wall of the protective shell (302). The adjusting rod (303) has a slot 1 (306). The slider 1 (304) is slidably sleeved on the outer wall of the adjusting rod (303). The clamping block (305) is fixedly connected between adjacent sliders 1 (304). A slot 2 (309) is opened at the bottom of the inner wall of the protective shell (302). The clamping block (307) is detachably passed through the inner wall of slider 1 (304) and slot 1 (306) on the adjusting rod (303) in sequence, and finally engages with slot 2 (309) to lock slider 1 (304) on the adjusting rod (303).

2. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 1, characterized in that, The fixing mechanism (3) includes two sets of clamping components symmetrically arranged along the width direction of the base (1). Each set of clamping components includes the cylinder (301), the protective shell (302), the adjusting rod (303), the slider (304), and the clamping block (305).

3. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 1, characterized in that, It also includes a protective mechanism (4), which is located at the top of the base (1) and covers the fixing mechanism (3).

4. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 3, characterized in that, The protective mechanism (4) includes: a shell (401) fixed to the top of the base (1), a groove (404) opened on the inner wall of the shell (401), a protective plate (402), an observation port (405) opened at the top of the protective plate (402) and a second slider (403) fixed to the left and right ends of the outer wall of the protective plate (402), the second slider (403) slidingly engaged in the groove (404).

5. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 4, characterized in that, The protective plate (402) can slide along the length of the outer shell (401) through the cooperation of the slider (403) and the groove (404) to selectively open or close the operating space on the top of the base (1).

6. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 1, characterized in that, The clamping block (305) is fixedly connected to the slider (304) on the side furthest from it, and an elastic buffer layer is provided on the adjacent side of the clamping block (305).

7. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 1, characterized in that, The adjusting rod (303) has a plurality of slots (306) evenly distributed along its length to lock the slider (304) in different positions.

8. The testing station for insulation testing of electromechanical integrated modules in electric vehicles according to claim 1, characterized in that, The locking block (307) has a stepped structure. The upper narrow section passes through the first slider (304) and is adapted to the first slot (306), while the lower thick section engages with the second slot (309), thereby locking the first slider (304) in both the vertical and horizontal directions.

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