A new energy automobile charging and discharging socket test fixture clamp

Abstract

The application relates to the field of new energy sources, in particular to a charging and discharging socket test tool clamp for a new energy vehicle. The charging and discharging socket has a socket part and a base part, the charging and discharging socket test tool clamp comprises a fixing frame, a mold and a clamping piece, the mold can move on the fixing frame, a vibration assembly is arranged on the fixing frame, the vibration assembly comprises a movable connecting piece used for connecting the mold and a vibration trigger piece used for driving the mold to vibrate together with the socket, and a positioning assembly used for stabilizing the socket during plug-in and plug-out test is further arranged on the fixing frame. Through the cooperation of the vibration assembly and the positioning assembly, efficient switching between bump simulation and plug-in and plug-out test of the charging and discharging socket is realized, the test authenticity and stability are improved, the complex mechanical environment is simulated more truly, and in the plug-in and plug-out mode, the linkage of the tension driver and the trigger rod ensures that the mold is stably positioned, and the plug-in and plug-out test precision is remarkably improved.

Description

TECHNICAL FIELD

[0001] The application relates to the field of new energy sources, in particular to a charging and discharging socket test fixture clamp for a new energy vehicle. BACKGROUND

[0002] Under the background of rapid development of new energy vehicles, the charging and discharging socket, as a key interface for energy transmission between the vehicle and the charging equipment, directly affects the safety and service life of the vehicle. In actual use, the charging and discharging socket may be affected by vibration during vehicle driving, which may cause poor contact, accelerated wear and even electrical failure during use. At present, the test of the charging and discharging socket is mostly carried out by manual plugging or simple clamps, which is difficult to simulate the vibration and plugging coupling effect under actual working conditions, and cannot comprehensively evaluate the stability and durability of the socket in long-term use.

[0003] The currently disclosed Chinese authorized publication No. CN117368806B is a new energy vehicle test device, which comprises a detection box, a first fixed plate and a second fixed plate; the front side of the detection box is provided with a warehouse door; when the warehouse door is closed, the inside of the detection box is in a sealed state; a first socket is arranged on the detection box; the first fixed plate is connected in the detection box; the second fixed plate is installed on the first fixed plate; a second socket is arranged on the second fixed plate; the second socket and the first socket are respectively connected with the positive and negative electrodes of an external power supply; a charging seat is placed on the second fixed plate; a plurality of copper terminals are arranged in the charging seat; a connecting line is communicated on the charging seat; further comprising a sliding plate, a charging gun, an adjusting support rod and a measuring system; the sliding plate for simulating plugging and unplugging movement is movably connected on the first fixed plate; the charging gun is installed on the sliding plate; the charging gun is communicated with the first socket; the adjusting support rod for adjusting the angle between the charging gun and the charging seat is installed on the sliding plate; the adjusting support rod is of a telescopic structure; the adjusting support rod is connected with the tail of the charging gun; the measuring system for measuring the copper terminals is installed on the detection box.

[0004] According to the above-mentioned patent, the telescopic length of the adjusting support rod is controlled to adjust the included angle formed between the charging gun and the charging seat, so as to simulate the actual plugging and unplugging of the charging gun by the user in the daily use process, and to make the durability test of the charging seat more in line with the daily use situation. However, this method belongs to the conventional test operation, which only focuses on the plugging and unplugging action itself, and ignores the influence of the continuous vibration of the vehicle in the driving process caused by the road bumps, starting and braking and other factors on the internal contact of the socket. Such vibration is easy to cause micro displacement and contact surface wear in the socket, and then affect the stability of electrical connection. Therefore, at present, a new energy vehicle charging and discharging socket test fixture clamp is needed, which can simulate the vehicle driving vibration environment and then carry out plug-in test, so as to realize the comprehensive reliability evaluation of the charging and discharging socket under complex dynamic working conditions. SUMMARY

[0005] To address the problems existing in current technology, a test fixture for charging and discharging sockets for new energy vehicles is provided. Through the coordinated operation of vibration components and positioning components, the charging and discharging socket can be efficiently switched between bump simulation and insertion / removal tests, improving the realism and stability of the test and more realistically simulating complex mechanical environments. At the same time, in insertion / removal mode, the linkage between the tensioning driver and the trigger rod ensures stable mold positioning, significantly improving the accuracy of insertion / removal tests.

[0006] To address the problems of existing technologies, this invention provides a test fixture for charging and discharging sockets for new energy vehicles. The charging and discharging socket has a socket portion and a base portion. The test fixture includes a fixed frame, a mold on which the socket portion is housed, and a clamping member on the mold for fixing the base portion of the socket. The mold is movable on the fixed frame. The fixed frame is equipped with a vibration component for simulating socket vibration. The vibration component includes a movable connector for connecting the mold and a vibration trigger for driving the mold and the socket to vibrate. The fixed frame is also equipped with a positioning component that cooperates with the movable connector to stabilize the socket during plug insertion and removal tests. When conducting a vehicle bumpy environment simulation test, the mold is in a continuous vibration state under the action of the vibration component to simulate the dynamic mechanical environment experienced by the socket in actual use. When switching to the plug insertion and removal simulation test mode, the mold is kept stable under the action of the positioning component to ensure the accuracy and consistency of the insertion and removal actions.

[0007] Preferably, a movable connector is provided around the mold, and a first end plate is fixedly provided on the mold. The movable connector has a rubber pad, which is fixedly connected to the fixing frame. The rubber pad has a groove for embedding the edge of the first end plate therein. All the rubber pads form an active area for the first end plate to move by pressing against the rubber pad during vibration.

[0008] Preferably, a second end plate is also fixed on the mold, and the movable connector also has an elastic pull rope. One end of the elastic pull rope is fixedly connected to the second end plate, and the other end is fixedly connected to the fixed frame. All the elastic pull ropes work together to form a dynamic equilibrium area for the second end plate to limit excessive displacement during vibration.

[0009] Preferably, the positioning assembly includes a support platform mounted on a fixed frame and a tensioning driver for driving all elastic pull ropes. The first end plate is provided with a support platform around its perimeter that can abut against it. When the tensioning driver pulls all elastic pull ropes towards the second end plate, the first end plate is in a state of tight contact with all support platforms, so that the socket remains stable during plug insertion and removal tests.

[0010] Preferably, each rubber pad is provided with a vibration trigger, the vibration trigger has a trigger rod extending through the corresponding rubber pad towards the edge of the first end plate, the end of the trigger rod abuts against the edge of the first end plate, and a vibration driver cooperating with the trigger rod, and a vibration spring is arranged between the trigger rod and the rubber pad, and the vibration spring is in a synchronous deformation state when the vibration driver drives the trigger rod to reciprocate.

[0011] Preferably, the axis direction of the trigger rod is perpendicular to the plane direction of the first end plate, and the trigger rods form a vibration area for the first end plate to be limited in, and the first end plate is in a positioning state clamped in by all the trigger rods when the first end plate abuts against the support platform.

[0012] Preferably, the clamping device has clamping rods uniformly distributed around the mold and a clamping driver for driving all the clamping rods, each clamping rod has a clamping head abutting against the base portion of the socket, each clamping rod can rotate towards the base portion of the socket, and the mold is provided with a shaft connecting portion for the middle part of each clamping rod to rotate and connect.

[0013] Preferably, each clamping head of the clamping rod is provided with a rubber pressing block, and when the rubber pressing block extrudes the base portion of the socket, the base portion is in a pressing state of being pressed against the end portion of the mold, so that the socket is fixed in the mold.

[0014] Preferably, the clamping driver has a sleeve frame sleeved on all the clamping rods, the sleeve frame can move along the depth direction of the mold cavity, and each clamping rod is provided with a wedge at the end away from the clamping head, the base portion is gradually extruded by the rubber pressing block when the sleeve frame moves towards the side of the clamping rod close to the clamping head, and the rubber pressing block gradually moves away from the base portion when the sleeve frame moves towards the wedge and passes the wedge.

[0015] Preferably, the clamping driver further has a movable electromagnet fixedly connected with the sleeve frame and a fixed electromagnet fixedly connected with the mold.

[0016] The beneficial effects of the present application compared with the prior art are:

[0017] 1. The present application realizes efficient switching test of the charging and discharging socket in the simulation of vehicle bumping environment and plug-in test through the cooperation of the vibration assembly and the positioning assembly. The cooperation of the rubber pad and the first end plate provides flexible support and limiting guide, and ensures the authenticity and stability of the vibration process. At the same time, the linkage of the elastic pull rope and the second end plate constructs a dynamic balance area, effectively controls the displacement range of the mold, and improves the controllability of vibration. After the positioning assembly fixes the mold, it is beneficial to the plug-in test of the socket, and provides reliable technical support for the quality verification of the new energy vehicle charging socket.

[0018] 2.The application drives the trigger lever reciprocating motion through the vibration driver, and cooperates with the elastic deformation of the vibration spring, to realize the stable transmission of vibration energy, so that the mold produces composite vibration in multiple directions, and more truly simulates the complex dynamic environment.

[0019] When switching to the plug-in mode, the elastic pull rope driven by the tension driver applies balanced tension to the second end plate, so that the first end plate tightly abuts the support platform, forming a stable limiting state, thereby effectively limiting the free movement of the mold in the plug-in test, improving the test accuracy and repeatability. At the same time, the trigger lever is positioned and slightly abuts the edge of the first end plate, which ensures contact while avoiding over-constraint, further ensuring the stability and positioning reliability of the socket during the plug-in process. Efficient switching and accurate execution of vibration and plug-in test modes are realized.

[0020] 3.The application drives the sleeve frame to move through the clamping driver, rotates the clamping rod around the shaft joint, and makes the rubber pressing block on the chuck uniformly press the socket base, so as to quickly and reliably clamp different shapes and sizes of sockets. The elastic deformation of the rubber pressing block not only improves the clamping friction force, prevents displacement or loosening during the test, but also effectively protects the surface of the socket from damage. At the same time, moving the sleeve frame in the opposite direction can quickly release the clamping force, which is convenient for sample replacement and greatly improves the test efficiency and operation convenience. The overall clamping structure is stable and reliable, and has strong adaptability, providing a firm test basis for vibration and plug-in tests. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 It is a front-facing three-dimensional structural schematic diagram of a new energy automobile charging and discharging socket test tool clamp.

[0022] Figure 2 It is a back-facing three-dimensional structural schematic diagram of a new energy automobile charging and discharging socket test tool clamp.

[0023] Figure 3 It is a three-dimensional structural exploded schematic diagram of a new energy automobile charging and discharging socket test tool clamp.

[0024] Figure 4 It is a partial three-dimensional structural sectional view of a new energy automobile charging and discharging socket test tool clamp.

[0025] Figure 5 It is a partial three-dimensional structural sectional view of a new energy automobile charging and discharging socket test tool clamp.

[0026] Figure 6 It is a three-dimensional structural schematic diagram of a charging and discharging socket.

[0027] Figure 7It is a kind of new energy automobile with the socket of charge-discharge socket test fixture in the fixed state stereoscopic structure schematic view.

[0028] Figure 8 It is a kind of new energy automobile with the socket of charge-discharge socket test fixture in the fixed state stereoscopic structure sectional view.

[0029] Figure 9 It is a kind of new energy automobile with the socket of charge-discharge socket test fixture in the relaxed state stereoscopic structure schematic view.

[0030] Figure 10 It is a kind of new energy automobile with the socket of charge-discharge socket test fixture in the relaxed state stereoscopic structure sectional view.

[0031] In the figure, the label is: 1-socket;11-jack part;12-base part;2-fixed frame;3-mold;31-first end plate;32-second end plate;33-shaft connection part;4-clamping part;41-clamping rod;411-clamping head;412-rubber pressing block;42-clamping driver;421-sleeve frame;4211-movable electromagnet;4212-fixed electromagnet;422-wedge;5-movable connecting part;51-rubber pad;52-elastic pull rope;6-vibration trigger;61-trigger lever;62-vibration spring;7-positioning assembly;71-supporting platform. DETAILED DESCRIPTION

[0032] In order to further understand the characteristics, technical means and specific purposes and functions reached by the present application, the present application will be described in further detail below in combination with the drawings and specific embodiments.

[0033] Referring to Figures 1-6 As shown in the figure, a kind of new energy automobile with the socket of charge-discharge socket test fixture, charge-discharge socket 1 has jack part 11 and base part 12, charge-discharge socket 1 test fixture includes fixed frame 2 and the mold 3 for the jack part 11 of socket 1 is contained therein is set on it and the clamping part 4 for setting on the mold 3 is used to fix the base part 12 of socket 1, the mold 3 can be active on fixed frame 2, the fixed frame 2 is equipped with vibration assembly to simulate the vibration of socket 1, the vibration assembly includes movable connecting part 5 to connect mold 3 and vibration trigger 6 to drive mold 3 along with socket 1 vibration, the fixed frame 2 is also equipped with positioning assembly 7 to cooperate with movable connecting part 5 to stabilize socket 1 when carrying out plug-in test, when switching to plug-in simulation test mode, mold 3 is in stable state under the action of positioning assembly 7, to ensure the accuracy and consistency of plug-in action.

[0034] When testing the charging and discharging socket 1 for new energy vehicles, first, the charging and discharging socket 1 to be tested is installed on the test tooling fixture. That is, the socket 1 socket part 11 is embedded in the mold cavity of the mold 3, and then the base part 12 of the socket 1 is fixed on the mold 3 by the clamping piece 4.

[0035] When the vehicle jolt environment simulation test mode is performed, the mold 3 is in a state of continuous vibration under the action of the vibration assembly, to simulate the dynamic mechanical environment that the socket 1 is subjected to in actual use. At this time, the vibration trigger 6 in the vibration assembly is started, connected with the mold 3 through the movable connecting piece 5, and drives the mold 3 to vibrate in multiple directions and different frequencies, together with the socket 1. This vibration simulates the complex stress conditions such as jolt and impact caused by road condition changes during vehicle driving, so as to effectively detect the key indicators such as structural stability, connection reliability and sealing performance of the socket 1 in a dynamic environment. At the same time, the vibration parameters can be set according to the standard test requirements, such as vibration frequency, amplitude, duration, etc., to cover various typical road conditions.

[0036] When the jolt environment simulation is completed, it can be switched to the plug-in and plug-out simulation test mode. In this mode, the mold 3 is stably fixed under the action of the positioning assembly 7, to prevent the test results from being affected by vibration or other external forces. At this time, the test equipment automatically or manually controls the plug to plug in and plug out of the socket 1, simulating the process of the user plugging in and plugging out the charging plug in daily use. To evaluate the durability, contact performance and mechanical strength of the socket 1 in the long-term use. In addition, the on-off state of the internal circuit and the resistance change of the socket 1 can also be monitored during plugging and unplugging, to determine whether the socket 1 has problems such as poor contact, overheating or open circuit. Evaluate whether the socket 1 has problems after vibration test.

[0037] During the entire test process, the mold 3 not only provides accurate positioning for the socket part 11 of the socket 1, but also can be quickly replaced and adjusted according to the different models of the socket 1, improving the universality and efficiency of the test. The clamping piece 4 ensures that the base part 12 of the socket 1 is firmly fixed, avoiding displacement during vibration or plugging, so as to ensure the accuracy and repeatability of the test data. At the same time, the cooperation between the positioning assembly 7 and the movable connecting piece 5 enables the mold 3 to quickly switch between different test modes. That is, it remains in a free state during vibration test, and is firmly fixed during plugging test, greatly enhancing the adaptability of the test.

[0038] Referring to Figures 1-6As shown, the mold 3 is provided with four movable connecting members 5, and a first end plate 31 is fixed on the mold 3. The movable connecting member 5 has a rubber pad 51, which is fixedly connected with the fixed frame 2. The rubber pad 51 has a clamping groove in which the edge of the first end plate 31 is embedded. The rubber pads 51 form a movable area for the first end plate 31 to move in the vibration process.

[0039] When the vibration test is performed, the first end plate 31 moves in the movable area formed by the rubber pads 51 as the vibration assembly drives the mold 3 to generate multidirectional vibration. At this time, the first end plate 31 presses the rubber pads 51 in contact with it in the movement process, and the elastic deformation of the rubber pads 51 absorbs part of the impact force, while maintaining the stability and guidance of the mold 3 in the vibration process.

[0040] Not only does it achieve flexible connection between the mold 3 and the fixed frame 2, reducing the impact of rigid impact on the socket 1 sample, but also ensures that the mold 3 has a certain degree of freedom in the vibration process, thereby more realistically simulating the various complex mechanical environments to which the socket 1 is subjected in vehicle driving. The movable area formed by the four rubber pads 51 around the first end plate 31 provides a controllable vibration path for the mold 3, avoiding its deviation from the normal working position, and further improving the accuracy and reliability of the entire vibration test.

[0041] Referring to Figures 1-6 As shown, a second end plate 32 is also fixed on the mold 3, and the movable connecting member 5 also has an elastic pull rope 52. One end of the elastic pull rope 52 is fixedly connected with the second end plate 32, and the other end is fixedly connected with the fixed frame 2. All the elastic pull ropes 52 jointly form a dynamic balance area for limiting excessive displacement of the second end plate 32 in the vibration process.

[0042] When the vibration test is performed, the second end plate 32 is displaced as the mold 3 is driven by the vibration trigger 6 to generate multidirectional vibration. At this time, the elastic pull rope 52 absorbs part of the vibration energy through its own tensile deformation, and provides a restoring force when the displacement exceeds a reasonable range, preventing the second end plate 32 and the mold 3 as a whole from excessive displacement or deflection.

[0043] This allows the mold 3 to always be in the dynamic balance area formed by the elastic pull rope 52 in the vibration process, ensuring that it has a certain degree of freedom, and effectively limiting unintended large-scale displacement, thereby improving the controllability and repeatability of the vibration process. At the same time, the flexible connection of the elastic pull rope 52 can also alleviate the impact stress in the vibration transmission process, protecting the mold 3 and the socket 1 sample from abnormal external force damage, and ensuring that the entire test process is stable, safe and efficient.

[0044] Referring to Figures 1-6 As shown, the positioning assembly 7 includes support platforms 71 arranged on the fixed frame 2 and a tensioning driver for driving all the elastic pull ropes 52. The first end plate 31 is provided with a support platform 71 around its periphery, which can abut against the first end plate 31. When the tensioning driver pulls all the elastic pull ropes 52 towards the first end plate 31, the first end plate 31 is in close contact with all the support platforms 71, so that the socket 1 remains stable during the plug-in and plug-out test.

[0045] When switching to the plug-in and plug-out simulation test mode, the tensioning driver starts to apply tension to all the elastic pull ropes 52 and pulls the second end plate 32 towards the first end plate 31. As the elastic pull ropes 52 are gradually tightened, the second end plate 32 is subjected to balanced tension from multiple directions and is transmitted to the first end plate 31 through the mold 3, so that the first end plate 31 is in close contact with the support platforms 71 on the fixed frame 2. At this time, the first end plate 31 is firmly pressed on the support platforms 71, forming a stable limiting state, thereby limiting any free movement or shaking of the mold 3 during the plug-in and plug-out process. The accuracy and repeatability of the plug-in and plug-out test are improved, providing a stable foundation for evaluating the mechanical strength and electrical connection reliability of the socket 1.

[0046] Referring to Figures 1-6 As shown, each rubber pad 51 is provided with a vibration trigger 6, which has a trigger rod 61 extending through the corresponding rubber pad 51 towards the edge of the first end plate 31 and a vibration driver cooperating with the trigger rod 61. The end of the trigger rod 61 abuts against the edge of the first end plate 31, and a vibration spring 62 is arranged between the trigger rod 61 and the rubber pad 51. When the vibration driver drives the trigger rod 61 to reciprocate, the vibration spring 62 is in synchronous deformation state.

[0047] When the vibration test is performed, the vibration driver starts to drive the trigger rod 61 to reciprocate along the rubber pad 51 towards the edge of the first end plate 31, and the end of the trigger rod 61 always abuts against the edge of the first end plate 31. During the movement of the trigger rod 61, the vibration spring 62 arranged between the trigger rod 61 and the rubber pad 51 is synchronously compressed or stretched, thereby effectively transmitting the power generated by the vibration driver to the mold 3, driving the mold 3 and the socket 1 thereon to vibrate in the corresponding direction.

[0048] The elastic properties of the vibration spring 62 not only ensure the continuous contact between the trigger rod 61 and the first end plate 31, but also absorb part of the impact force during vibration, making the vibration process more stable and uniform. Through the coordinated work of the vibration triggers 6 at multiple rubber pads 51, the mold 3 can obtain a composite vibration effect in all directions, more realistically simulating the complex dynamic mechanical environment that the socket 1 bears during vehicle operation, thereby comprehensively detecting the structural strength and connection reliability of the socket 1.

[0049] Referring to Figures 1-6 As shown, all the trigger rods 61 form a vibration area for the first end plate 31 to be restricted therein, and when the first end plate 31 is abutted against the support platform 71 of the fixed frame 2, the first end plate 31 is in a positioning state clamped by all the trigger rods 61.

[0050] When the first end plate 31 is tensioned and abutted against the support platform 71 of the fixed frame 2, since all the trigger rods 61 form a surrounding vibration area around them. Therefore, at this time, each trigger rod 61 stops reciprocating and is restricted at a specified position by the corresponding vibration driver, so that the first end plate 31 is in a positioning state clamped by multiple trigger rods 61, and the end of each trigger rod 61 slightly abuts against the edge surface of the first end plate 31 without generating excessive constraint force while maintaining contact. So that the first end plate 31 is effectively restricted within the space range surrounded by the trigger rods 61 during the plug-in test, preventing position deviation caused by external disturbance or residual vibration.

[0051] Referring to Figures 4-10 As shown, the clamping device 4 has clamping rods 41 uniformly distributed around the mold 3 and a clamping driver 42 for driving all the clamping rods 41, each clamping rod 41 has a clamping head 411 abutting against the base portion 12 of the socket 1, and each clamping rod 41 can rotate towards the base portion 12 of the socket 1, and the mold 3 is provided with a shaft connection portion 33 for the middle part of each clamping rod 41 to rotate.

[0052] When the clamping driver 42 is started, it drives all the clamping rods 41 to move synchronously, each clamping rod 41 rotates around its shaft connection portion 33 on the mold 3 and moves towards the base portion 12 of the socket 1. With the rotation of the clamping rod 41, the clamping head 411 provided at the front end thereof gradually approaches and finally abuts against the outer side surface of the base portion 12 of the socket 1, applying uniform clamping force to the socket 1 from all directions. Through the coordinated action of multiple clamping rods 41, the socket 1 is firmly fixed on the mold 3 during the entire test process, effectively preventing displacement or loosening caused by vibration or plug-in operation, thereby ensuring the accuracy and repeatability of the test data.

[0053] Referring to Figures 4-10As shown, each clamping rod 41 is provided with a rubber pressing block 412 on the clamping head 411, when the rubber pressing block 412 extrudes the base portion 12 of the socket 1, the base portion 12 is in a pressed state of being pressed against the end portion of the mold 3, so that the socket 1 is fixed in the mold 3.

[0054] When the clamping rod 41 is driven to rotate by the clamping driver 42 and moves towards the base portion 12 of the socket 1, the rubber pressing block 412 on the clamping head 411 contacts and gradually extrudes the outer surface of the base portion 12. With the continuous clamping action, the rubber pressing block 412 produces a certain elastic deformation and applies uniform pressure to the base portion 12, so that it is firmly pressed against the end portion of the mold 3, forming a stable pressing state.

[0055] The flexible material of the rubber pressing block 412 not only enhances the friction during clamping to prevent the socket 1 from slipping or loosening, but also effectively protects the surface of the base portion 12 from damage, while adapting to different sizes and shapes of the socket 1, ensuring that it always remains in a fixed position during vibration test or plug-in test, thereby improving the stability and reliability of the entire test process.

[0056] Referring to Figures 4-10 As shown, the clamping driver 42 has a sleeve frame 421 sleeved on all clamping rods 41, the sleeve frame 421 can move along the depth direction of the mold cavity of the mold 3, and each clamping rod 41 is provided with a wedge block 422 at the end away from the clamping head 411, when the sleeve frame 421 moves towards the side of the clamping head 411 of the clamping rod 41, the base portion 12 is gradually extruded by the rubber pressing block 412, and when the sleeve frame 421 moves towards the direction of the wedge block 422 and passes through the wedge block 422, the rubber pressing block 412 gradually moves away from the base portion 12.

[0057] When the sleeve frame 421 moves towards the side of the clamping head 411 of the clamping rod 41 along the depth direction of the mold cavity of the mold 3, the inner wall of the sleeve frame 421 gradually contacts and pushes each clamping rod 41, so that the clamping rod 41 rotates around the shaft joint portion 33, and the rubber pressing block 412 at the front end of the clamping head 411 moves towards the base portion 12 of the socket 1 and applies pressure, and as the sleeve frame 421 continues to move forward, the rubber pressing block 412 gradually presses the base portion 12, so that it is firmly pressed against the end portion of the mold 3, and the clamping action is completed.

[0058] When the sleeve frame 421 moves reversely, slides towards the direction of the wedge block 422 and passes through the position of the wedge block 422, the pushing force of the sleeve frame 421 on the wedge block 422 gradually increases, so that the rubber pressing block 412 at the front end of the clamping head 411 gradually moves away from the base portion 12, thereby releasing the clamping state of the socket 1, achieving quick release, and facilitating the replacement or removal of the socket 1 sample.

[0059] Referring to Figures 4-10As shown, the clamping driver 42 also has a movable electromagnet 4211 fixedly connected with the sleeve frame 421 and a fixed electromagnet 4212 fixedly connected with the mold 3.

[0060] When the clamping driver 42 works, the movable electromagnet 4211 and the fixed electromagnet 4212 generate magnetic attraction force through power supply, drive the sleeve frame 421 fixedly connected with the movable electromagnet 4211 to move along the depth direction of the mold cavity of the mold 3. As the movable electromagnet 4211 approaches the fixed electromagnet 4212, the sleeve frame 421 moves synchronously and acts on the wedge block 422 on the clamping rod 41, pushes the clamping rod 41 to rotate, and makes the rubber pressing block 412 at the end of the chuck 411 gradually loosen the base part 12 of the socket 1, to complete the loosening action.

[0061] When the movable electromagnet 4211 and the fixed electromagnet 4212 repel each other, the movable electromagnet 4211 moves away from the fixed electromagnet 4212, the sleeve frame 421 moves synchronously and acts on the clamping rod 41, pushes the clamping rod 41 to rotate, and makes the rubber pressing block 412 at the end of the chuck 411 gradually press the base part 12 of the socket 1, to complete the clamping action.

[0062] The present application realizes efficient switching between the vibration simulation and the plug-in test of the charging and discharging socket 1 through the cooperation of the vibration assembly and the positioning assembly 7, and improves the authenticity and stability of the test. Through the cooperation of the rubber pad 51 and the first end plate 31, flexible support and limiting guidance are provided, and the authenticity and stability of the vibration process are ensured. At the same time, through the linkage of the elastic pull rope 52 and the second end plate 32, a dynamic balance area is constructed, the displacement range of the mold 3 is effectively controlled, and the vibration controllability is improved. The mold 3 maintains a controllable path in multi-directional composite vibration, and more truly simulates a complex mechanical environment.

[0063] At the same time, in the plug-in mode, through the linkage of the tensioning driver and the trigger rod 61, the mold 3 is stably limited, and the precision and repeatability of the plug-in test are significantly improved. In this process, the clamping piece 4 drives the clamping rod 41 to rotate through the sleeve frame 421, and realizes the rapid clamping and release of different specifications of the socket 1 by using the rubber pressing block 412, which takes into account the clamping force and protection, improves the test efficiency and adaptability, and provides comprehensive and reliable technical support for the quality verification of the charging socket 1 of the new energy automobile.

[0064] The above embodiments only express one or several embodiments of the present application, and the description is more specific and detailed, but it cannot be understood as a limitation on the scope of the present application. It should be noted that for ordinary skilled persons in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which are within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the appended claims.

Claims

1. A test fixture for a charging and discharging socket for new energy vehicles, wherein the charging and discharging socket has a socket portion and a base portion, characterized in that, The charging and discharging socket test fixture includes a fixed frame, a mold on which the socket's insertion hole is housed, and a clamping member on the mold with a base for fixing the socket. The mold is movable on a fixed frame, which is equipped with a vibration component for simulating socket vibration. The vibration component includes a movable connector for connecting the mold and a vibration trigger for driving the mold and the socket to vibrate. The fixed frame is also equipped with a positioning component that cooperates with the movable connector to stabilize the socket during plug insertion and removal tests. When conducting vehicle bumpy environment simulation tests, the mold is in a state of continuous vibration under the action of the vibration component to simulate the dynamic mechanical environment that the socket is subjected to in actual use. When switching to the plug insertion / removal simulation test mode, the mold remains stable under the action of the positioning component to ensure the accuracy and consistency of the insertion / removal action; Each of the four sides of the mold is provided with a movable connecting piece. A first end plate is fixed on the mold. The movable connecting piece has a rubber pad. The rubber pad is fixedly connected to the fixed frame. The rubber pad has a groove for embedding the edge of the first end plate. All the rubber pads form an active area for the first end plate to move by pressing against the rubber pad during vibration. A second end plate is also fixed on the mold, and the movable connector also has an elastic pull rope. One end of the elastic pull rope is fixedly connected to the second end plate, and the other end is fixedly connected to the fixed frame. All the elastic pull ropes work together to form a dynamic equilibrium area for the second end plate to limit excessive displacement during vibration. The positioning assembly includes a support platform mounted on a fixed frame and a tensioning driver for driving all elastic pull ropes. The first end plate is provided with a support platform around its perimeter that can abut against it. When the tensioning driver pulls all elastic pull ropes towards the second end plate, the first end plate is in a state of tight contact with all support platforms, so that the socket remains stable during plug insertion and removal tests. Each rubber pad is provided with a vibration trigger, which has a trigger rod extending through the corresponding rubber pad toward the edge of the first end plate and a vibration driver that cooperates with it. The end of the trigger rod abuts against the edge of the first end plate. A vibration spring is provided between the trigger rod and the rubber pad. When the vibration driver drives the trigger rod to reciprocate, the vibration spring is in a synchronous deformation state. The axis of the trigger rod is perpendicular to the plane of the first end plate. All the trigger rods form a vibration zone in which the first end plate is confined. When the first end plate is pressed against the support platform, the first end plate is in a positioning state where it is clamped by all the trigger rods.

2. The testing fixture for a charging and discharging socket for new energy vehicles according to claim 1, characterized in that, The clamping component has clamping rods evenly distributed around the mold and a clamping driver for driving all the clamping rods. Each clamping rod has a chuck that presses against the base of the socket. Each clamping rod can rotate toward the base of the socket. The mold is provided with a shaft connection for rotating the middle of each clamping rod.

3. The testing fixture for a charging and discharging socket for new energy vehicles according to claim 2, characterized in that, Each clamp has a rubber pressure block on its clamp head. When the rubber pressure block squeezes the base of the socket, the base is pressed against the end of the mold, thus fixing the socket in the mold.

4. The testing fixture for a charging and discharging socket for new energy vehicles according to claim 3, characterized in that, The clamping driver has a sleeve frame fitted on all the clamping rods, which can move along the depth direction of the mold cavity. Each clamping rod has a wedge block at the end away from the chuck. When the sleeve frame moves toward the side of the clamping rod closer to the chuck, the base part is gradually squeezed by the rubber pressure block. When the sleeve frame moves toward the wedge block and passes the wedge block, the rubber pressure block gradually moves away from the base part.

5. A test fixture for charging and discharging sockets for new energy vehicles according to claim 4, characterized in that, The clamping driver also has a movable electromagnet fixedly connected to the sleeve frame and a fixed electromagnet fixedly connected to the mold.

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