Wiring harness fatigue test tool

Abstract

The utility model provides a wire harness fatigue test tool. The wire harness fatigue test tool comprises a mounting table; the fixing module is arranged on the mounting table, and the fixing module is suitable for being fixedly connected with a plug-in terminal of a wire harness; the vibration module is provided with a vibration part, and the wire harness penetrates through the vibration part and is connected with the vibration part; and the power module is in transmission connection with the vibration module so as to enable the vibration part to vibrate. According to the wire harness fatigue test tool, the plug-in terminal of the wire harness is fixed on the test tool, the wire harness is simulated to be fixedly connected with the vehicle frame on the vehicle, the wire harness penetrates through the vibration part and is connected with the vibration part, power is input to the vibration part through the power module, the vibration frequency and amplitude of the vibration part are controlled, different test requirements are met, and the test efficiency is improved. The working state of the wire harness under the vehicle jumping condition is simulated, research and development personnel can know and master the service life of the wire harness, structural design is carried out according to the service life of the wire harness, and the reliability of the wire harness is improved.

Description

Technical Field

[0001] This application relates to the field of wire harness strength testing technology, and in particular to a wire harness fatigue testing fixture. Background Technology

[0002] The electric drive axle is an important component of a truck, directly driving the vehicle's axle via an electric motor. It offers advantages such as high efficiency, environmental friendliness, and low noise. However, during vehicle operation, uneven road surfaces or changes in vehicle load can cause significant vibration in the electric drive axle.

[0003] In this context, the reliability of the high-voltage wiring harness becomes a critical issue. The high-voltage wiring harness typically consists of three-phase wires, one end fixed to the electric drive axle and the other end fixed to the vehicle frame. Due to the vibration of the electric drive axle, the high-voltage wiring harness needs to withstand frequent bending and stretching. This repeated mechanical stress can cause fatigue damage to the copper wires in the shielding layer and the copper wires in the core of the wiring harness, ultimately leading to wire breakage, causing the vehicle's high-voltage system to fail, and forcing the vehicle to stop. This not only affects the normal operation of the vehicle but may also pose a serious threat to the safety of the occupants.

[0004] To ensure the reliability of high-voltage wiring harnesses under actual operating conditions, rigorous testing and verification must be conducted before they are officially installed in vehicles. However, there is currently a lack of specialized testing equipment to simulate the impact of electric drive bridge fluctuations on the wiring harnesses. Utility Model Content

[0005] This application provides a wiring harness fatigue testing fixture to simulate the jumping of the wiring harness during vehicle operation, thereby determining the service life of the wiring harness, improving the reliability of the wiring harness, and thus improving the safety of the vehicle during operation.

[0006] This application provides a wire harness fatigue testing fixture, comprising: a mounting platform; a fixing module disposed on the mounting platform, the fixing module being adapted to be fixedly connected to the plug terminals of the wire harness; a vibration module having a vibration part, through which the wire harness passes and is connected to the vibration part; and a power module being drively connected to the vibration module to cause the vibration part to vibrate.

[0007] This utility model discloses a wiring harness fatigue testing fixture. The wiring harness's plug terminals are fixed on the testing fixture, simulating the fixed connection between the wiring harness and the vehicle frame. The wiring harness passes through and connects to the vibration unit. Power is input to the vibration unit through a power module to control the frequency and amplitude of the vibration to meet different testing requirements. It simulates the working state of the wiring harness under vehicle vibration conditions, which helps R&D personnel understand and master the service life of the wiring harness. Based on the service life of the wiring harness, structural design is carried out, improving the reliability of the wiring harness and thus improving the driving safety of the vehicle.

[0008] In some embodiments, the mounting platform has a fixed end face facing the vibration module, and the fixed module includes: a plurality of first fixed brackets, an array of the plurality of first fixed brackets disposed on the fixed end face, the first fixed brackets having a first mounting port, the first mounting port being adapted to be fixedly connected to the plug-in terminal of the wire harness.

[0009] According to some embodiments of the present invention, the fixing module further includes: a plurality of first mounting seats, the first fixing brackets being multiple groups, each group of first fixing brackets being spaced apart on the first mounting seat along a first direction, and the plurality of first mounting seats being spaced apart on the fixing end face along a second direction.

[0010] According to some embodiments of the present invention, the first mounting base is provided with a plurality of second fixing brackets, the second fixing brackets are arranged at intervals along the first direction on the first mounting base, and the second fixing brackets have a second mounting opening, the second mounting opening being adapted to be fixedly connected with the binding member of the wire harness.

[0011] According to some embodiments of the present invention, the fixing module further includes: a plurality of second mounting seats, the second mounting seats and the first mounting seats being arranged alternately along the second direction, the second mounting seats having a plurality of third fixing brackets spaced apart along the first direction, the third fixing brackets having a third mounting opening, the third mounting opening being adapted to be fixedly connected to the binding member of the wire harness, the second mounting seats having a plurality of first mounting holes, the first mounting holes being respectively located on one side of the third fixing brackets, the first mounting holes being adapted to be fixedly connected to the wire code bracket of the wire harness.

[0012] In some embodiments, the vibration module includes: a base; a vibration frame, the vibration frame being disposed on the base and forming the vibration part; the base is provided with a guide structure, the vibration frame having a guide engagement structure, the guide structure engaging with the guide engagement structure to cause the vibration frame to vibrate along a second direction.

[0013] According to some embodiments of the present invention, the vibration frame has at least one mounting layer arranged along a second direction, the mounting layer is provided with a plurality of fourth fixing brackets, the plurality of fourth fixing brackets are arranged at intervals along a first direction, the fourth fixing brackets define fixing grooves, and the wire harness passes through the fixing grooves for fixing.

[0014] According to some embodiments of the present invention, the mounting platform can slide along a third direction.

[0015] According to some embodiments of this utility model, the power module includes at least an oil pump, a transmission rod, and a fixing member. The telescopic end of the oil pump is rotatably connected to the first end of the transmission rod, and the second end of the transmission rod is rotatably connected to the vibration frame. The first end and the second end are located at opposite ends of the transmission rod along its length. The fixing member has a fixed end, which is rotatably connected to the transmission rod. The distance between the first end and the fixed end is smaller than the distance between the second end and the fixed end.

[0016] In some embodiments, the wire harness fatigue testing fixture further includes a data acquisition module, which is signal-connected to the power module. Attached Figure Description

[0017] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application.

[0018] Figure 1 This is a schematic diagram of the structure of the wire harness fatigue testing fixture according to an embodiment of the present invention;

[0019] Figure 2 This is a schematic diagram of the structure of the first mounting base, the second mounting base, and the vibration frame according to an embodiment of the present utility model.

[0020] Explanation of reference numerals in the attached figures:

[0021] 100. Test fixtures;

[0022] 110. Mounting platform; 111. Fixed end face;

[0023] 120. Fixed module; 121. First fixed bracket; 1211. First mounting port; 122. First mounting base; 123. Second fixed bracket; 1231. Second mounting port; 124. Second mounting base; 125. Third fixed bracket; 1251. Third mounting port; 126. First mounting hole;

[0024] 130. Vibration module; 131. Vibration unit; 132. Base; 133. Vibration frame; 1331. Mounting layer; 1332. Fourth fixed bracket; 1332a. Fixing groove;

[0025] 141. Transmission rod.

[0026] The accompanying drawings illustrate specific embodiments of this application, which will be described in more detail below. These drawings and descriptions are not intended to limit the scope of the concept in any way, but rather to illustrate the concept of this application to those skilled in the art through reference to particular embodiments. Detailed Implementation

[0027] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings denote the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the appended claims.

[0028] In existing technologies, during vehicle operation, uneven road surfaces or changes in vehicle load can cause significant vibrations in the electric drive axle. During this process, the wiring harness connected to the electric drive axle is subjected to frequent bending and stretching. This repeated mechanical stress can lead to fatigue damage to the copper wires in the shielding layer and the core of the wiring harness, ultimately causing the copper wires to break, resulting in the failure of the vehicle's high-voltage system and forcing the vehicle to stop. This not only affects the normal operation of the vehicle but may also pose a serious threat to the safety of the occupants.

[0029] In view of this, this utility model provides a wiring harness fatigue testing fixture to simulate the jumping of the wiring harness during vehicle operation, so as to determine the service life of the wiring harness, improve the reliability of the wiring harness, and thus improve the safety of the vehicle during operation.

[0030] The technical solution of this application and how the technical solution of this application solves the above-mentioned technical problems are described in detail below with specific embodiments. These specific embodiments can be combined with each other, and the same or similar concepts or processes may not be described again in some embodiments. The embodiments of this application will now be described with reference to the accompanying drawings.

[0031] It should be noted that, for ease of understanding of the technical solution of this application, the first direction can be the width direction of the fixed end face, see [reference needed]. Figure 1 The X direction in the diagram, and the second direction can be the height direction of the fixed end face, see [reference]. Figure 1 In the Z direction, the third direction can be a direction perpendicular to the fixed end face, see [reference]. Figure 1 in the Y direction.

[0032] This application provides a wire harness fatigue testing fixture 100, which may include: a mounting platform 110, a fixing module 120, a vibration module 130, and a power module.

[0033] Mounting platform 110 is the basic structure of the entire test fixture 100, used to support and fix other modules. Mounting platform 110 provides a stable platform to ensure the precise positioning and stability of each component during testing.

[0034] A fixing module 120 is disposed on the mounting platform 110. The fixing module 120 is adapted to be fixedly connected to the plug terminals of the wire harness. Exemplarily, the fixing module 120 may have an interface that matches the plug terminals, and the plug terminals of the wire harness are inserted into the interface for fixed connection. In this way, by means of the fixing module 120, one end of the wire harness is firmly fixed on the test fixture 100 to simulate the state of the wire harness being fixedly connected to the vehicle frame in a vehicle, thereby ensuring that the wire harness has the correct initial position and sufficient tension during the test.

[0035] The vibration module 130 has a vibration section 131 through which the wiring harness passes and is connected. Thus, the vibration section 131 subjects the wiring harness to vibrations and vibrations similar to actual working conditions during testing. Furthermore, by adjusting the vibration module 130, different amplitudes and frequencies of mechanical stress can be simulated to test the fatigue performance of the wiring harness under various dynamic conditions, or to test the fatigue performance of different wiring harnesses from different vehicle models under various dynamic conditions.

[0036] The power module is connected to the vibration module 130 to provide power to the vibration module 130 so that the vibration part 131 vibrates. For example, the power module may have a power output end with periodic motion. The power output end may be an eccentric wheel, a cam or a reciprocating telescopic rod. The power output end is connected to the vibration part 131 to drive the vibration module 130 to vibrate, simulating the use of the wire harness under actual working conditions.

[0037] This utility model discloses a wiring harness fatigue testing fixture 100. The wiring harness's plug terminals are fixed on the testing fixture 100, simulating the fixed connection between the wiring harness and the vehicle frame. The wiring harness passes through and is connected to the vibration unit 131. Power is input to the vibration unit 131 through a power module to control the frequency and amplitude of the vibration of the vibration unit 131 to meet different testing requirements. It simulates the working state of the wiring harness under vehicle jumping conditions, which helps R&D personnel understand and master the service life of the wiring harness. Based on the service life of the wiring harness, structural design is carried out, improving the reliability of the wiring harness and thus improving the driving safety of the vehicle.

[0038] In some embodiments, the mounting platform 110 has a fixed end face 111 facing the vibration module 130, providing a mounting structural foundation for the fixed module 120.

[0039] The fixing module 120 may include multiple first fixing brackets 121, which are arrayed on the fixing end face 111. Thus, during testing, the wiring harness terminals can be fixed to the corresponding first brackets according to their specific connection positions on the vehicle frame. This allows for testing of various wiring harness arrangements and can also simulate testing of wiring harnesses from different vehicle models, thereby expanding the applicability of the testing fixture 100.

[0040] The first mounting bracket 121 has a first mounting port 1211, which is adapted to be fixedly connected to the plug-in terminal of the wiring harness. Through the first mounting port 1211, one end of the wiring harness can be fixed on the mounting platform 110, simulating its fixed state in an actual vehicle. In this way, the fixing module 120 enables the wiring harness to have sufficient stability during the test, ensuring that the mechanical stress applied by the vibration module 130 can be accurately transmitted to the wiring harness, thereby obtaining reliable fatigue test results.

[0041] According to some embodiments of this utility model, the fixing module 120 may further include multiple first mounting seats 122, and multiple sets of first fixing brackets 121. Each set of first fixing brackets 121 is spaced apart from the first mounting seats 122 along a first direction, and multiple first mounting seats 122 are spaced apart from the fixing end face 111 along a second direction. On the one hand, through the combination of multiple first mounting seats 122 and first fixing brackets 121, the fixing module 120 can adapt to wire harnesses of different sizes and arrangements, enabling the test fixture 100 to be used for testing various types of wire harnesses without frequent replacement or adjustment of the mounting platform 110, thus improving the testing convenience of the test fixture 100. On the other hand, the design of multiple first mounting seats 122 makes the inspection and maintenance of the test fixture 100 more convenient. When one of the first fixing brackets 121 is damaged, it is not necessary to replace the mounting platform 110; only the corresponding first mounting seat 122 needs to be replaced.

[0042] According to some embodiments of the present invention, a plurality of second fixing brackets 123 are provided on the first mounting base 122. The second fixing brackets 123 are arranged at intervals along the first direction on the first mounting base 122. The second fixing brackets 123 have second mounting openings 1231. The second mounting openings 1231 are adapted to be fixedly connected with the binding member of the wire harness. For example, the second mounting opening 1231 can be a through hole, and the binding member can be a cable tie or a fixing buckle. When the binding member binds the wire harness, it passes through the through hole, so that the wire harness is fixed to the second fixing bracket 123.

[0043] Thus, when simulating the wiring harness routing, the middle part of the wiring harness can be fixed by the second fixing bracket 123, which helps to make the wiring harness connection more closely resemble the working condition of the wiring harness on the vehicle during the test, thereby improving the reliability of the test results.

[0044] Optionally, the first fixing bracket 121 and the second fixing bracket 123 can be arranged at intervals along a first direction on the first mounting base 122. When the wire harness being tested needs to be fixed using both the first fixing bracket 121 and the second fixing bracket 123 during installation, the first fixing bracket 121 and the second fixing bracket 123 used can be located on the same first mounting base 122. Of course, the first fixing bracket 121 and the second fixing bracket 123 used can also be located on different first mounting bases 122 to accommodate various wire harness layouts.

[0045] According to some embodiments of the present invention, the fixing module 120 may further include: a plurality of second mounting seats 124, wherein the second mounting seats 124 and the first mounting seat 122 are arranged alternately along a second direction.

[0046] Optionally, in some embodiments, the first mounting base 122 and the second mounting base 124 may be provided with assembly holes, and the fixed end face 111 may be provided with fixing holes corresponding to the assembly holes. Fasteners such as bolts are used to install the first mounting base 122 and the second mounting base 124 onto the fixed end face 111 through the assembly holes and fixing holes, respectively. Alternatively, a mounting groove extending along the first direction may be provided on the fixed end face 111, and the first mounting base 122 and the second mounting base 124 are respectively installed in the mounting groove. This simplifies and facilitates the installation of the first mounting base 122 and the second mounting base 124. Furthermore, when components on the first mounting base 122 or the second mounting base 124 are damaged and need replacement, only the corresponding first mounting base 122 or second mounting base 124 needs to be removed and replaced, which helps reduce the maintenance cost of the testing fixture 100.

[0047] The second mounting base 124 has a plurality of third fixing brackets 125 spaced apart along a first direction. Each third fixing bracket 125 has a third mounting opening 1251, which is adapted to be fixedly connected to a binding member of the wire harness. The second mounting base 124 also has a plurality of first mounting holes 126, each located on one side of a third fixing bracket 125. Each first mounting hole 126 is adapted to be fixedly connected to a wire harness code bracket. The wire harness code bracket is typically used to organize and fix the path of the wire harness. The wire harness code bracket may have fixing posts that match the first mounting holes 126. These fixing posts are inserted into the first mounting holes 126 to fix the wire harness, ensuring that the wire harness remains neat and controlled during testing. Simultaneously, binding members such as cable ties on the wire harness pass through the third mounting opening 1251 to further secure the wire harness to the third fixing bracket 125.

[0048] Thus, through the cooperation of the first fixing bracket 121, the second fixing bracket 123, the third fixing bracket 125, and the first mounting hole 126, the fixing module 120 can provide a multi-layered fixing solution for the wire harness. This helps reduce unnecessary movement of the wire harness during testing, ensures accurate stress transmission from vibration and vibration during testing, improves the stability and reliability of the wire harness during testing, and enhances the accuracy and effectiveness of wire harness fatigue test results. Furthermore, through this multi-point and multi-layered fixing solution, researchers can better evaluate the performance and lifespan of the wire harness under actual working conditions.

[0049] In some embodiments, the vibration module 130 may include a base 132 and a vibration frame 133.

[0050] The base 132 is the basic structure of the vibration module 130, providing stable support. The base 132 is designed to have sufficient rigidity and stability to withstand the reaction forces generated during vibration.

[0051] The vibration frame 133 is mounted on the base 132 and constitutes the vibration part 131. The base 132 is provided with a guide structure, and the vibration frame 133 has a guide engagement structure. The guide structure and the guide engagement structure engage in a guide engagement to make the vibration frame 133 vibrate in a second direction.

[0052] For example, there can be one base 132. In this case, the guide structure can be the main body of the base 132, which extends along the second direction. The guide mating structure can be a guide hole through which the main body passes, thus achieving guide mating between the guide structure and the guide mating structure. The vibration frame 133 can also be connected to the power module for transmission, causing the vibration frame 133 to vibrate along the second direction under the action of the power module. Alternatively, there can be two bases 132, which can be opposite each other along the first direction. The opposing surfaces of the two bases 132 have tracks or grooves extending along the second direction. In this case, the tracks or grooves constitute the guide structure. The two ends of the vibration frame 133 are respectively located on the two bases 132. The guide mating structure constitutes a slider, which is fixed to the end of the vibration frame 133 and slidably connected to the tracks or grooves, thus achieving vibration of the vibration frame 133 along the second direction and improving the reliability of the structure.

[0053] According to some embodiments of the present invention, the vibration frame 133 has at least one mounting layer 1331 arranged along the second direction, and the mounting layer 1331 is provided with a plurality of fourth fixing brackets 1332. The plurality of fourth fixing brackets 1332 are arranged at intervals along the first direction. The number and spacing of the fourth fixing brackets 1332 can be adjusted according to the specifications of the wire harness and the testing requirements.

[0054] The fourth fixing bracket 1332 defines a fixing groove 1332a, through which the wire harness is fixed. Exemplarily, the fixing groove 1332a may extend through the fourth fixing bracket 1332 in a third direction. The wire harness may pass through the fixing groove 1332a and then be wound around the fourth fixing bracket 1332. Alternatively, the fixing groove 1332a may be a V-shaped groove, having a first wall and a second wall that are close to each other. The fourth fixing bracket 1332 may have a certain degree of elasticity, allowing the wire harness to move along a second direction towards the connection between the first and second walls after passing through the fixing groove 1332a, until it is engaged between the first and second walls for fixation.

[0055] According to some embodiments of this utility model, the fixed end face 111 and the base 132 of the vibration module 130 are spaced apart along a third direction, and the mounting platform 110 can slide along a third direction. This allows the relative position of the mounting platform 110 to be adjusted according to different wire harness lengths and test configurations, enabling the test fixture 100 to adapt to various types and specifications of wire harnesses for testing without requiring large-scale structural adjustments. Furthermore, the sliding design of the mounting platform 110 simplifies the test preparation process, making wire harness installation and adjustment more convenient and faster, thus improving test efficiency and reducing preparation time.

[0056] For example, the sliding of the mounting platform 110 can be achieved by making the lower end face of the mounting platform 110 relatively smooth with respect to the test platform surface, allowing the mounting platform 110 to slide. Alternatively, the mounting platform 110 can have a sliding portion, and the test platform surface can be provided with a guide groove extending in a third direction, so that the mounting platform 110 and the base 132 can slide relative to each other.

[0057] According to some embodiments of the present invention, the power module may include at least an oil pump (not shown in the figure), a transmission rod 141, and a fixing member (not shown in the figure).

[0058] The oil pump, as the power source of the power module, provides the required power through the hydraulic system. The extension end of the oil pump can output linear motion, and precise motion control is achieved through pressure changes of the hydraulic fluid. The extension end of the oil pump is rotatably connected to the first end of the transmission rod 141 (such as a transmission pin, hinge, etc.), and the second end of the transmission rod 141 is rotatably connected to the vibration frame 133 (such as a transmission pin, hinge, etc.). The first end and the second end are located at opposite ends of the transmission rod 141 along its length.

[0059] The fixing component is used to stabilize the movement trajectory of the transmission rod 141. The fixing component has a fixed end, which is rotatably connected to the transmission rod 141. The distance between the first end and the fixed end is smaller than the distance between the second end and the fixed end. This asymmetrical design enables the transmission rod 141 to act as a lever, amplifying the power output of the oil pump and allowing the vibration frame 133 to obtain a larger vibration amplitude.

[0060] In some embodiments, the wire harness fatigue testing fixture 100 may further include a data acquisition module, which is connected to the power module via a signal.

[0061] For example, the data acquisition module is typically equipped with multiple sensor interfaces for connecting various types of sensors. These sensors can measure parameters such as vibration amplitude, frequency, acceleration, stress, and strain. Through signal connection with the power module, the data acquisition module can acquire real-time operating status information of the power module, such as the oil pump pressure, the displacement of the transmission rod 141, and the motion state of the vibration frame 133. This is beneficial for evaluating the state of the wiring harness under different vibration conditions.

[0062] The data acquisition module enables precise measurement and recording of all key parameters during the testing process, thereby improving the reliability of test results. In-depth analysis of the acquired data allows researchers to better understand the fatigue behavior of the wiring harness and optimize its design and material selection accordingly.

[0063] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0064] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0065] In the description of this utility model, "multiple" means two or more.

[0066] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0067] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wire harness fatigue testing fixture (100), characterized in that, include, Mounting station (110); A fixing module (120) is provided on the mounting platform (110), and the fixing module (120) is adapted to be fixedly connected to the plug terminals of the wire harness; The vibration module (130) has a vibration section (131), through which the wire harness passes and is connected to the vibration section (131); The power module is connected to the vibration module (130) to drive the vibration part (131) to vibrate.

2. The wire harness fatigue testing fixture (100) according to claim 1, characterized in that, The mounting platform (110) has a fixed end face (111) facing the vibration module (130). The fixing module (120) includes: a plurality of first fixing brackets (121), and the plurality of first fixing brackets (121) are arranged in an array on the fixing end face (111). The first fixing bracket (121) has a first mounting port (1211) which is adapted to be fixedly connected to the plug terminal of the wire harness.

3. The wire harness fatigue testing fixture (100) according to claim 2, characterized in that, The fixing module (120) further includes: a plurality of first mounting seats (122), and the first fixing brackets (121) are in multiple groups, with each group of first fixing brackets (121) spaced apart on the first mounting seats (122) along a first direction. Multiple first mounting bases (122) are spaced apart on the fixed end face (111) along the second direction.

4. The wire harness fatigue testing fixture (100) according to claim 3, characterized in that, The first mounting base (122) is provided with a plurality of second fixing brackets (123), and the second fixing brackets (123) are arranged at intervals along the first direction on the first mounting base (122). The second fixing bracket (123) has a second mounting port (1231) which is adapted to be fixedly connected to the restraint of the wire harness.

5. The wire harness fatigue testing fixture (100) according to claim 3, characterized in that, The fixing module (120) further includes: a plurality of second mounting bases (124), the second mounting bases (124) and the first mounting base (122) being arranged alternately along the second direction. The second mounting base (124) has a plurality of third fixing brackets (125) spaced apart along the first direction, each third fixing bracket (125) having a third mounting opening (1251) adapted to be fixedly connected to a restraint member of the wire harness. The second mounting base (124) has a plurality of first mounting holes (126), which are located on one side of the third fixing bracket (125) and are adapted to be fixedly connected to the wire code bracket of the wire harness.

6. The wire harness fatigue testing fixture (100) according to any one of claims 1-5, characterized in that, The vibration module (130) includes: Base (132); A vibration frame (133) is provided on the base (132), and the vibration frame (133) constitutes the vibration part (131). The base (132) is provided with a guide structure, and the vibration frame (133) has a guide engagement structure. The guide structure and the guide engagement structure engage in a guide engagement to make the vibration frame (133) vibrate in a second direction.

7. The wire harness fatigue testing fixture (100) according to claim 6, characterized in that, The vibration frame (133) has at least one mounting layer (1331) arranged along a second direction, and the mounting layer (1331) is provided with a plurality of fourth fixing brackets (1332), which are spaced apart along a first direction. The fourth fixing bracket (1332) defines a fixing groove (1332a), through which the wire harness is fixed.

8. The wire harness fatigue testing fixture (100) according to claim 6, characterized in that, The mounting platform (110) can slide along a third direction.

9. The wire harness fatigue testing fixture (100) according to claim 6, characterized in that, The power module includes at least an oil pump, a transmission rod (141), and a fixing component. The telescopic end of the oil pump is rotatably connected to the first end of the transmission rod (141), and the second end of the transmission rod (141) is rotatably connected to the vibration frame (133). The first end and the second end are located at opposite ends of the transmission rod (141) along its length. The fixing member has a fixed end, which is rotatably connected to the transmission rod (141). The distance between the first end and the fixed end is smaller than the distance between the second end and the fixed end.

10. The wire harness fatigue testing fixture (100) according to any one of claims 1-5, characterized in that, Also includes: A data acquisition module is connected to the power module via a signal connection.

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