Temperature monitoring device of electric vehicle electric control system under specified load

Abstract

The utility model discloses a temperature monitoring device for an electric control system of an electric vehicle under a specified load, which comprises a supporting platform, a wheel rolling simulation module, a vehicle body fixing module, a load adjusting module and a testing module, the pair of roller columns are located on the two sides of the partition plate, and any roller column is parallel to the horizontal transverse frame of the I-shaped support and comprises a roller shaft and a plurality of rollers arranged on the roller shaft in a sleeving mode. Driving assemblies for driving the roller columns to reciprocate in the extending direction of the loading frame are arranged in the platform body, and the number of the driving assemblies corresponds to that of the roller columns. The device is suitable for electric two-wheelers, electric tricycles and electric four-wheelers, and is high in monitoring efficiency, safe and reliable.

Description

TECHNICAL FIELD

[0001] The utility model relates to electric vehicle test field. More specifically, the utility model relates to a temperature monitoring device of electric vehicle electric control system under the specified load. BACKGROUND

[0002] As the core component of electric vehicles, the stability and reliability of the electric control system are directly related to the safety performance and operating efficiency of the electric vehicle. In the electric control system of the electric vehicle, various electronic components play a crucial role. They are not only responsible for signal transmission and processing, but also directly involved in power control, brake management, safety monitoring and other key links of the vehicle. However, the performance and life of electronic components are often strictly limited by working temperature. When the working temperature of the component exceeds its design limit, the physical properties of the material will change, resulting in increased resistance, decreased insulation performance, and possibly causing short circuit, open circuit and other failure modes. These failures not only reduce the service life of the component itself, but also may cause a chain reaction to the entire electric vehicle, such as power system failure, brake failure, control system disorder, etc. In severe cases, it may even cause fire or explosion, posing a serious threat to the safety of passengers.

[0003] With the rapid development of electric vehicles, the field of electric vehicles far exceeds the scope of traditional electric bicycles, covering a wide range of vehicle types including electric unicycles (including balance cars), electric two-wheelers, electric three-wheelers (lightweight) and electric four-wheelers (lightweight). These electric vehicles have gradually become the choice of people's travel with their advantages of environmental protection, energy saving and low noise. In the development process of electric vehicles, the stability and reliability of the electric control system have become increasingly prominent, becoming one of the key factors restricting its further popularization and application. Especially in the field of electric three-wheelers and electric four-wheelers, due to their larger size and higher power demand, the challenges faced by the electric control system are more severe. These vehicles not only need to have efficient energy conversion and transmission capacity, but also need to maintain stable operating state in complex and variable road environment to ensure the safety and comfort of personnel.

[0004] Therefore, it is necessary to monitor the temperature of key components in the electric control system and evaluate their thermal management capability under different working conditions to ensure the safe operation of electric vehicles. By monitoring and recording the temperature data of components under expected working conditions in real time, potential overheating risks can be detected in time to provide data support for optimizing thermal design and adjusting heat dissipation strategy. When testing the temperature of the electric control system of the electric vehicle, it is necessary to accurately simulate various load conditions that the electric vehicle may encounter in actual operation, including normal load, maximum load and abnormal load beyond the design expectation, to comprehensively evaluate the thermal resistance and protection mechanism of the electric control system of the electric vehicle.

[0005] The existing electric vehicle monitoring devices are basically not applicable to electric unicycles (balance cars), electric two-wheelers, electric three-wheelers (light type) and electric four-wheelers (light type), such as the invention patent with the publication number CN106053096A, which discloses an electric bicycle performance test platform, which comprises a rear wheel driving device and a seat pressing device; and such as the invention patent with the publication number CN115284197A, which discloses a handlebar support system of an electric bicycle detection platform, which comprises a first gantry, a second gantry, a coarse adjustment lifting plate and a fine adjustment lifting plate. The above disclosed electric vehicle monitoring devices are not applicable to temperature monitoring of the electric control system of electric unicycles, electric two-wheelers, electric three-wheelers and electric four-wheelers. Utility model content

[0006] An object of the present utility model is to solve at least the above problems and provide at least the advantages to be explained later.

[0007] Another object of the present utility model is to provide a temperature monitoring device for an electric control system of an electric vehicle under a specified load, which is applicable to electric unicycles (including balance cars), electric two-wheelers, electric three-wheelers (light type) and electric four-wheelers (light type).

[0008] In order to achieve these objects and other advantages according to the present utility model, a temperature monitoring device for an electric control system of an electric vehicle under a specified load is provided, comprising:

[0009] A support platform comprises a platform body, a pair of I-shaped supports arranged in parallel on opposite sides of the platform body, a receiving cavity is arranged in the middle of the platform body, and a partition plate is arranged on the top of the receiving cavity;

[0010] A vehicle body fixing module comprises a pair of horizontal bases embedded in the platform body arranged below a pair of horizontal crossbars, a pair of carriages slidably arranged on the pair of horizontal bases, and two clamping seats slidably arranged on any carriage, a first electric telescopic rod is arranged on the clamping seat, a clamping jaw and a pressing plate are arranged on the telescopic part of the first electric telescopic rod, the clamping jaw and the pressing plate are located on both sides of the first electric telescopic rod, and the pressing plates of adjacent first electric telescopic rods are arranged close to each other, and the upper surface of the horizontal base is flush with the upper surface of the platform body;

[0011] A wheel rolling simulation module comprises a pair of roller columns arranged in the receiving cavity, and the pair of roller columns are located on both sides of the partition plate, any roller column is parallel to the horizontal crossbar of the I-shaped support, and any roller column comprises a circumferentially rotating roller shaft and a plurality of rollers sleeved on the roller shaft and rotating circumferentially with the roller shaft;

[0012] The load adjusting module comprises a pair of load frames slidably arranged between a pair of horizontal cross frames, a second electric telescopic rod extending downward is slidably arranged on any one of the load frames, a load plate is arranged at the free end of the second electric telescopic rod, and a pressure sensor is arranged at the bottom of the load plate.

[0013] The test module comprises a temperature sensor arranged at a test point and a terminal receiving data, and the temperature sensor and the pressure sensor are electrically connected with the terminal.

[0014] The platform body is internally provided with a driving assembly driving the roller column to reciprocate along the extension direction of the load frame, and the driving assembly corresponds in number to the roller column.

[0015] Preferably, the driving assembly comprises:

[0016] A first motor, a rotating shaft connected to the first motor through a first coupling, and a pair of bevel gears sleeved on the rotating shaft.

[0017] A pair of lead screws connected with a pair of matching gears in a pair of bevel gear boxes, and the matching gears in the pair of bevel gear boxes are engaged with a pair of bevel gears.

[0018] The reciprocating nuts on the pair of lead screws are connected with the second couplings at both ends of the roller shaft.

[0019] Preferably, the specific structure of the slidable arrangement of any one of the sliding frames and the pair of horizontal bases is that a first sliding rail parallel to the extension direction of any one of the horizontal bases is arranged on the horizontal base, first sliding blocks embedded in a pair of first sliding rails are arranged at both ends of any one of the sliding frames, and one of the first sliding blocks is connected with the piston rod of the first electric cylinder to drive the sliding frame to reciprocate on the horizontal base.

[0020] Preferably, the specific structure of the slidable arrangement of the clamping seat and the sliding frame is that a second sliding rail parallel to the extension direction of the sliding frame is arranged at the bottom of the sliding frame, a second sliding block adapted to the second sliding rail is arranged at the bottom of the clamping seat sleeved on the sliding frame, and a second electric cylinder driving the clamping seat to reciprocate on the sliding frame is arranged on the sliding frame.

[0021] Preferably, the specific structure of the slidable arrangement of the load frame and the horizontal cross frame is that a third sliding rail parallel to the extension direction of any one of the horizontal cross frames is arranged on the horizontal cross frame, third sliding blocks adapted to the third sliding rail are arranged at both ends of any one of the load frames, and one of the third sliding blocks is connected with the piston rod of the third electric cylinder through an L-shaped plate to drive the load frame to reciprocate on the horizontal cross frame.

[0022] Preferably, the second electric telescopic rod is slidably arranged with the load carrier, and the specific structure is that the load carrier is provided with a fourth sliding rail parallel to the extension direction of the load carrier, and the motor base of the second electric telescopic rod is provided with a fourth sliding block matched with the fourth sliding rail, and the load carrier is provided with a fourth electric cylinder for driving the second electric telescopic rod to reciprocate on the side of the load carrier.

[0023] Preferably, the temperature sensor is a thermocouple.

[0024] Preferably, the abutting plate is provided with a rubber pad layer on the side, and the pressure sensor is embedded in the rubber pad layer and flush with the outer side of the rubber pad layer.

[0025] Preferably, one side of the platform body provided with the I-shaped support is provided with a slope.

[0026] The utility model at least includes the following beneficial effects:

[0027] Firstly, the temperature monitoring device of the electric vehicle electric control system under specified load provided by the utility model comprises a support platform, a wheel rolling simulation module, a vehicle body fixing module, a load adjusting module and a test module, wherein the wheel rolling simulation module comprises a pair of roller columns, the roller columns are respectively located on the two sides of the partition plate, any roller column is provided with a second motor for driving the rotation of the roller column, any roller column comprises a plurality of rollers and a roller shaft penetrating through the plurality of rollers, the roller positions of the pair of roller columns are corresponding, the wheel rolling simulation module is suitable for electric two-wheeled vehicles, electric three-wheeled vehicles and electric four-wheeled vehicles, and the temperature monitoring device of the electric vehicle electric control system under specified load can complete the monitoring of different kinds of electric vehicles;

[0028] Secondly, the temperature monitoring device of the electric vehicle electric control system under specified load provided by the utility model can accurately simulate the running state of the electric vehicle under different load conditions through the support platform and the vehicle body clamping module, the design of the roller column makes the resistance received by the wheel during rolling more uniform, thereby ensuring the consistency and accuracy of the test data. Meanwhile, the addition of the driving assembly realizes the automatic control of the roller column, the rolling speed and direction of the wheel can be quickly adjusted according to the test requirements, and the test efficiency is significantly improved;

[0029] Thirdly, the design of the load adjusting module of the temperature monitoring device of the electric vehicle electric control system under specified load provided by the utility model allows the user to adjust the position of the second electric telescopic rod on the load carrier and the weight of the load plate according to the actual needs, thereby realizing the accurate simulation of different load conditions. The application of the pressure sensor can realize the real-time monitoring and recording of the load change, and ensure the load accuracy in the test process. The flexible load adjustment and accurate monitoring capability provide reliable data support for the performance evaluation of the electric control system.

[0030] Fourthly, the temperature monitoring device of the electric vehicle electric control system under the specified load adopts electric control, can be integrated into the automatic detection system, and the efficiency of the electric vehicle electric control system temperature monitoring is improved.

[0031] Fifthly, the temperature monitoring device of the electric vehicle electric control system under the specified load adopts modular design, the modules are relatively independent, convenient to disassemble, assemble and maintain, which not only reduces the production cost, but also improves the flexibility and expandability of the equipment, so that the user can adjust or upgrade the device function according to the actual demand, and meets the demand of future electric vehicle technology development.

[0032] Other advantages, objects and features of the utility model will be embodied partly through the following description, and will be understood by the person skilled in the art through the research and practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0033] Figure 1 It is the layout schematic view of the support platform, roller column, load frame and horizontal base described in a technical scheme of the utility model;

[0034] Figure 2 It is the structure schematic view of the vehicle body fixing module described in another technical scheme of the utility model;

[0035] Figure 3 It is the structure schematic view of the load adjusting module described in another technical scheme of the utility model;

[0036] Figure 4 It is the structure schematic view of the drive assembly described in another technical scheme of the utility model;

[0037] Wherein, 1, platform body;2, vertical frame;3, fourth electric cylinder;4, load frame;5, piston rod of fourth electric cylinder;6, third electric cylinder;7, piston rod of third electric cylinder;8, L-shaped plate;9, third sliding block;10, third sliding rail;11, mounting frame;12, horizontal cross frame;13, fourth sliding block;14, roller;15, partition;16, roller shaft;17, first sliding rail;18, horizontal base;19, first sliding block;20, first electric cylinder;21, piston rod of first electric cylinder;22, second electric cylinder;23, piston rod of second electric cylinder;24, clamping jaw;25, sliding frame;26, motor base of first electric telescopic rod;27, first electric telescopic rod;28, sleeve;29, abutting plate;30, clamping seat;31, load plate;32, second electric telescopic rod;33, motor base of second electric telescopic rod;34, first motor;35, first coupling;36, first bevel gear box;37, rotating shaft;38, second bevel gear box;39, lead screw;40, nut;41, slope. DETAILED DESCRIPTION

[0038] The utility model makes further detailed description in combination with the drawings below, to enable the person skilled in the art to implement according to the description text.

[0039] It should be understood that the terms such as "have", "contain" and "include" used herein do not exclude the presence or addition of one or more other elements or combinations thereof.

[0040] As Figures 1-4 The utility model provides a kind of temperature monitoring device of electric vehicle electric control system under specified load, it is applicable to electrically driven wheelbarrow, electrically driven two-wheeled vehicle, electrically driven tricycle and electrically driven four-wheeled vehicle.

[0041] In order to realize these purposes and other advantages according to the utility model, a kind of temperature monitoring device of electric vehicle electric control system under specified load is provided, comprising:

[0042] Support platform, it includes platform body 1, a pair of I-shaped supports parallelly arranged on opposite sides of platform body 1, a receiving cavity is provided in the middle of the platform body 1, and a partition plate 15 is provided on the top of the receiving cavity.

[0043] The vehicle body fixing module includes a pair of horizontal bases 18 embedded in the platform body 1 below a pair of the horizontal crosspieces 12, a pair of carriages 25 slidably arranged on the pair of horizontal bases 18, at least two clamping seats 30 slidably arranged on any carriage 25, a first electric telescopic rod 27 provided on the clamping seat 30, a motor base 26 of the first electric telescopic rod located on the clamping seat 30, a clamping jaw 24 and a pressing plate 29 provided on the telescopic part of the first electric telescopic rod 27 through a sleeve 28, the clamping jaw 24 and the pressing plate 29 are connected to the two sides of the first electric telescopic rod 27 through a connecting rod, and the pressing plates 29 of adjacent first electric telescopic rods 27 are arranged close to each other, and the upper surface of the horizontal base 18 is flush with the upper surface of the platform body 1; the adjacent first electric telescopic rods 27 refer to the adjacent first electric telescopic rods 27 on different carriages.

[0044] The wheel rolling simulation module includes a pair of roller columns arranged in the receiving cavity, and the pair of roller columns are located on both sides of the partition plate 15, any roller column is parallel to the horizontal crosspiece 12 of the I-shaped support, and any roller column includes a circumferentially rotating roller shaft 16 and a plurality of rollers 14 sleeved on the roller shaft 16 and rotating circumferentially with the roller shaft 16.

[0045] The load adjusting module includes a pair of load frames 4 slidably arranged between a pair of horizontal crosspieces 12, a downwardly extending second electric telescopic rod 32 is slidably arranged on any load frame 4, a load plate 31 is arranged on the free end of the second electric telescopic rod 32, and a pressure sensor is arranged on the bottom of the load plate 31.

[0046] A test module comprising a temperature sensor arranged at a test point in the electric control system of the electric vehicle and a terminal receiving data, the temperature sensor and the pressure sensor are electrically connected with the terminal;

[0047] The platform body 1 is internally provided with a pair of drive assemblies for driving a pair of roller columns to reciprocate along the extension direction of the load carrier 4.

[0048] In the above technical solution, the temperature monitoring device of the electric control system of the electric vehicle under a specified load includes a support platform, a wheel rolling simulation module, a vehicle body fixing module, a load adjusting module and a test module; the support platform is used for arranging the wheel rolling simulation module, the vehicle body fixing module, the load adjusting module, the electric vehicle and part of components of the test module; the vehicle body fixing module is used for fixing the electric vehicle; the wheel rolling simulation module is used for simulating the movement of the wheels of the electric vehicle on an uphill road and a downhill road in the case of fixed vehicle body during the driving of the electric vehicle; the load adjusting module is used for applying different loads to the electric vehicle; and the test module is used for temperature monitoring of the test points in the electric control system of the electric vehicle.

[0049] In the above technical solution, the support platform includes a platform body 1 and a pair of I-shaped supports; the platform body 1 is rectangular, and the upper surface of the platform body 1 is provided with a receiving cavity extending to the inside thereof; the receiving cavity is preferably arranged at the middle of the platform body 1; the top of the receiving cavity is provided with a partition plate 15 to separate the upper surface of the receiving cavity into two parts; the upper surface of the partition plate 15 is flush with the upper surface of the platform body 1, and the partition plate 15 also facilitates personnel standing; a pair of I-shaped supports are arranged in parallel on opposite sides of the platform body 1; the horizontal crosspieces 12 of the I-shaped supports are arranged upwardly, as shown in Figure 1 ; a pair of I-shaped supports are arranged along the length direction of the platform body 1, and the I-shaped supports are arranged closer to the edges of the platform body 1 relative to the receiving cavity; and the distance between the vertical uprights 22 of the I-shaped supports is greater than the length of the receiving cavity in the parallel direction of the horizontal crosspieces 12 of the I-shaped supports (the length direction in Figure 1 ).

[0050] In the above technical solution, the vehicle body fixing module includes a horizontal base 18 embedded in the platform body 1, a pair of carriages 25 and at least two clamping bases arranged on the carriages 25; as a preferred embodiment, the clamping bases are more than two, which can better fix the vehicle body, as shown in Figure 1In this system, a pair of slides 25 are slidably disposed relative to the horizontal base 18, enabling horizontal movement of the slides 25. When monitoring electric two-wheeled vehicles, either slide 25 can be located on one side of the electric two-wheeled vehicle. That is, the temperature monitoring device of the electric vehicle electronic control system provided in this application under a specified load can simultaneously monitor at least two electric two-wheeled vehicles. When monitoring electric tricycles and electric four-wheeled vehicles, the pair of slides 25 are located on both sides of the monitored vehicle. The clamping base is provided with a first electric telescopic rod 27, and the telescopic part of the first electric telescopic rod 27 is provided with a clamping member, enabling vertical movement of the clamping member. The clamping member includes grippers 24 (attached) disposed on both sides of the first electric telescopic rod 27. Figure 2 The image shows the specific shape of the gripper 24 and the abutment plate 29. The gripper 24 is used to clamp the frame of the electric vehicle, and the abutment plate 29 presses against the body of the electric vehicle. Depending on the electric vehicle, the abutment plate 29 can also press against the middle of the wheel rim. The clamping components, including the gripper 24 and the abutment plate 29, can be adapted to the actual conditions of different electric vehicles. In the above technical solution, the maximum distance between a pair of carriages 25 can at least accommodate the passage of an electric four-wheeled vehicle.

[0051] In the above technical solution, the wheel rolling simulation module includes a pair of roller columns, each of which is located on the two sides of the partition plate 15, and each roller column has a second motor for driving its rotation. The electric vehicle is driven by its own power, and the roller in contact with the wheel provides the rotation speed. According to the different rotation directions of the roller, the uphill and downhill driving scenarios of the electric vehicle can be simulated. If the roller in contact with the wheel does not provide the rotation speed, the flat road driving scenario of the electric vehicle can be simulated. Each roller column includes a plurality of rollers 14 and a roller shaft 16 passing through the plurality of rollers 14. The positions of the rollers 14 of the pair of roller columns correspond. As an option, three rollers 14 are provided on the roller column. When monitoring the electric unicycle, the wheel of the electric unicycle is attached to the upper surface of any roller 14 on any roller column and rotates with the roller 14. When monitoring the electric two-wheeled vehicle, the two wheels of the electric two-wheeled vehicle are located on any pair of corresponding rollers 14, i.e., the front wheel of the electric two-wheeled vehicle is located on the front (with the vehicle head as the front) roller 14, and the rear wheel is located on the corresponding roller 14. When monitoring the electric three-wheeled vehicle, the front wheel of the electric three-wheeled vehicle is located on the middle roller 14 in the front (with the vehicle head direction as the front), and the rear wheel is located on the two rollers 14 in the rear. When monitoring the electric four-wheeled vehicle, the front wheel of the electric four-wheeled vehicle is located on the adjacent rollers in the front (with the front of the electric four-wheeled vehicle as the front), and the rear wheel is located on the corresponding roller 14 in the rear. Since each roller column has an independent driving assembly, the electric vehicle electric control system temperature monitoring device under specified load provided by the present application can be used to monitor the electric two-wheeled vehicle, the electric three-wheeled vehicle, and the electric four-wheeled vehicle with different diameters of front and rear wheels. As an option, the upper surface of the roller 14 is flush with the upper surface of the platform body 1.

[0052] In the above technical solution, the load adjustment module includes a pair of load frames 4 arranged between a pair of horizontal cross frames 12, a second electric telescopic rod 32 slidably arranged on the load frame 4, and a load plate 31 arranged at the free end of the second electric telescopic rod 32. The load frame 4 is slidably arranged relative to the horizontal cross frame 12, enabling the horizontal movement of the load plate 31. The second telescopic rod enables the vertical movement of the load plate 31 to match different types and models of electric vehicles. The bottom of the load plate 31 is provided with a pressure sensor to accurately load the electric vehicle.

[0053] In the above technical solution, the electric vehicle electric control system temperature monitoring device under specified load provided by the present application has at least the following beneficial effects:

[0054] 1. Improve test efficiency and accuracy: through the design of the support platform and the body clamping module, the running state of the electric vehicle under different load conditions can be accurately simulated; the design of the roller column makes the resistance received by the wheel during rolling more uniform, thereby ensuring the consistency and accuracy of the test data. At the same time, the addition of the driving assembly realizes the automatic control of the roller column, which can quickly adjust the rolling speed and direction of the wheel according to the test requirements, significantly improving the test efficiency.

[0055] 2. Flexible load adjustment and accurate monitoring: The design of the load adjustment module allows users to adjust the position of the second electric telescopic rod 32 on the load carrier 4 and the weight of the load plate 31 according to actual needs, thereby realizing accurate simulation of different load conditions. The application of pressure sensors can monitor and record load changes in real time, ensuring the accuracy of the load during testing. This flexible load adjustment and accurate monitoring capability provides reliable data support for the performance evaluation of the electronic control system.

[0056] 3. Efficient body clamping and safety guarantee: The body clamping module realizes fast and stable clamping of the electric vehicle body through the cooperation of the sliding carriage 25, the clamping base, and the first electric telescopic rod 27. The double design of the clamping jaw 24 and the abutting plate 29 enriches the fixing method, adapts to different electric vehicle clamping, and ensures the safety of the vehicle during testing, avoiding test errors or accident risks caused by vehicle shaking or displacement.

[0057] 4. Comprehensive temperature monitoring and data analysis: The arrangement of temperature sensors in the test module can cover key test points, which can monitor the temperature changes of the electric vehicle electronic control system under specific load in real time. Combined with the data collected by the pressure sensor, the terminal can comprehensively analyze the thermal management performance, energy efficiency, and potential thermal failure risk of the electronic control system, providing scientific basis for the design optimization and fault warning of electric vehicles.

[0058] 5. Modular design and easy maintenance: The entire device adopts modular design, and each module is relatively independent, which is convenient for disassembly, assembly and maintenance. This not only reduces production costs, but also improves the flexibility and scalability of the equipment, so that users can adjust or upgrade the device functions according to actual needs to meet the needs of future electric vehicle technology development.

[0059] As shown in the drawings, Figure 4 In one of the technical solutions, the driving assembly includes:

[0060] A first motor 34, the motor shaft of the first motor 34 is connected to a rotating shaft 37 through a first coupling 35, and a pair of bevel gears is sleeved on the rotating shaft 37;

[0061] A pair of lead screws 39 are respectively connected to mating gears in a pair of bevel gear boxes, and the mating gears in the pair of bevel gear boxes respectively mesh with a pair of bevel gears;

[0062] Among them, the reciprocating nuts 40 on a pair of lead screws 39 are respectively connected to the second couplings at both ends of the roller shaft 16.

[0063] In the above technical solutions, such as Figure 1 The drive assembly is used to drive the roller column to move along the extension direction of the load frame 4 (the width direction of the platform body 1), adapting to the distance between the front and rear wheels of different electric vehicles. The drive assembly includes a first motor 34 and a pair of lead screws 39. The pair of lead screws 39 are connected to the rotating shaft 37 of the first motor 34 through a pair of bevel gear boxes (first bevel gear box 36 and second bevel gear box 38, respectively), and the rotating shaft 37 rotates at any time. When the lead screws 39 rotate, the reciprocating nut 40 on the lead screws 39 makes a reciprocating linear motion along the axial direction of the lead screws 39, thereby driving the roller shaft 16 and the roller 14 on it to move along the extension direction of the load frame 4. This design not only simplifies the transmission mechanism and reduces energy loss, but also realizes the rapid and accurate movement of the roller column, improving testing efficiency. The roller column is driven by a second motor to rotate circumferentially along the roller 14, using friction to drive the wheels of the electric vehicle to rotate. Structurally, the motor shaft of the second motor is connected to the roller shaft 16 through a second coupling, and the reciprocating nut 40 on the lead screw 39 is connected to the second coupling. By optimizing the transmission mechanism and control system, the drive components achieve efficient and precise movement while reducing energy consumption and costs. This not only helps extend the service life of the temperature monitoring device in the electric vehicle's electronic control system under a specified load, but also saves users operating costs and improves economic efficiency.

[0064] In the above technical solution, the first motor 34 serves as the power source for the movement of the roller column along the width of the platform body. It directly transmits power to the rotating shaft 37 via the first coupling 35. The bevel gear on the rotating shaft 37 then meshes with a gear in the bevel gear box, thereby driving the lead screw 39 to rotate. This transmission method is not only compact and efficient, but also ensures smooth power transmission and precise control through the cooperation of the bevel gear and the bevel gear box, making the reciprocating motion of the roller column more stable and reliable. By adjusting the speed and direction of the first motor 34, the movement speed and direction of the roller column can be easily controlled, thus meeting the needs under different testing conditions. Furthermore, because the lead screw 39 and the reciprocating nut 40 have a self-locking function, the roller column can remain in its current position when the motor stops working, preventing accidental movement due to external forces, thus enhancing the safety and stability of the device.

[0065] like Figure 2As shown, in one of the technical solutions, the specific structure of the slidable arrangement of any one of the sliding frames 25 and the pair of horizontal bases 18 is that: any one of the horizontal bases 18 is provided with a first sliding rail 17 parallel to the extension direction thereof, and any one of the sliding frames 25 is provided with a first sliding block 19 embedded in the pair of first sliding rails 17 at both ends thereof, and one of the pair of first sliding blocks 19 is connected with the piston rod 21 of the first electric cylinder to drive the sliding frame 25 to reciprocate on the horizontal base 18.

[0066] In the above technical solution, the horizontal base 18 is embedded in the platform body, which facilitates the entry of the electric vehicle into the monitoring environment. By arranging the first sliding rail 17 parallel to the extension direction on the horizontal base 18, the guidance of the sliding frame 25 during movement is ensured to be accurate and without deviation or shaking, thereby improving the operation stability of the overall equipment and the precision of processing or operation. The first electric cylinder 20 directly drives the sliding frame 25 connected with the first sliding block 19, realizing rapid and accurate reciprocating motion control. This electric driving mode not only simplifies the operation process, but also greatly improves the work efficiency, especially in the automatic production line requiring frequent and accurate displacement, and its advantages are particularly obvious.

[0067] In the above technical solution, since the sliding frame 25 and the horizontal base 18 are arranged in a slidable manner, the position of the sliding frame 25 can be easily adjusted according to different work requirements, increasing the flexibility of the layout and the adaptability to different working environments. In addition, the use of standardized sliding rail and sliding block components not only facilitates installation and debugging, but also makes subsequent maintenance and replacement work more simple and fast, reducing maintenance cost and time. In addition, the wear resistance and long service life characteristics of the sliding rail further reduce the downtime and maintenance frequency caused by wear.

[0068] In one of the technical solutions, the specific structure of the slidable arrangement of the clamping seat 30 and the sliding frame 25 is that: the bottom of the sliding frame 25 is provided with a second sliding rail parallel to the extension direction thereof, the clamping seat 30 is sleeved on the sliding frame 25, and the bottom of the clamping seat 30 is provided with a second sliding block adapted to the second sliding rail, the sliding frame 25 is provided with a second electric cylinder 22 driving the clamping seat 30 to reciprocate on the sliding frame 25, and the piston rod 23 of the second electric cylinder is connected with the clamping seat 30.

[0069] In the above technical solution, the second sliding rail parallel to the extension direction is arranged at the bottom of the sliding frame 25, and the second sliding block matched with the second sliding rail is arranged at the bottom of the clamping seat 30, so that the clamping seat 30 can realize stable and accurate reciprocating motion on the sliding frame 25. This design not only improves the flexibility of operation, but also enables the clamping seat 30 to easily adjust its position according to different operation requirements, thereby enhancing the adaptability and application range of the system. The second electric cylinder 22 directly drives the reciprocating motion of the clamping seat 30 on the sliding frame 25, realizes rapid and accurate positioning control, and the accurate sliding guide ensures the stability and precision of the clamping seat 30 during movement, meeting the requirements of precision manufacturing and high-quality production.

[0070] In the above technical solution, the compact sliding design makes the connection between the clamping seat 30 and the sliding frame 25 more compact and efficient, effectively utilizing the limited operation space. This design not only reduces the floor area, but also improves the space utilization, especially suitable for work places with limited space, especially laboratory environment.

[0071] As shown in Figure 1 In one of the technical solutions, the specific structure of the load carrier 4 and the horizontal cross frame 12 being slidably arranged is that: any horizontal cross frame 12 is provided with a third sliding rail 10 parallel to the extension direction thereof, and any load carrier 4 is provided with a third sliding block 9 matched with the third sliding rail 10 at both ends thereof. One of the pair of third sliding blocks 9 is connected with the piston rod 7 of the third electric cylinder through an L-shaped plate 8 to drive the load carrier 4 to reciprocate on the horizontal cross frame 12.

[0072] As shown in Figure 3 In the above technical solution, the third sliding rail 10 parallel to the extension direction is arranged on any horizontal cross frame 12, and the third sliding block 9 matched with the third sliding rail 10 is arranged at both ends of the load carrier 4, so as to ensure the stability and accuracy of the load carrier 4 during movement on the horizontal cross frame 12. This design not only improves the carrying capacity of the load carrier 4, but also enables it to maintain stable movement state under heavy load, meeting the requirements of high load and high precision operation. The third electric cylinder 6 is connected and drives one of the third sliding blocks 9 through the L-shaped plate 8, thereby driving the entire load carrier 4 to realize rapid and accurate reciprocating motion on the horizontal cross frame 12. This electric driving mode not only simplifies the operation process and reduces manual intervention, but also significantly improves the work efficiency and automation level. The third electric cylinder 6 is installed through the mounting bracket 11 arranged above the horizontal cross frame 12, Figure 1 In the above technical solution, the third electric cylinder 6 is installed through the mounting bracket 11 arranged above the horizontal cross frame 12,

[0073] In one of the technical solutions, the specific structure of the second electric telescopic rod 32 and the load carrier 4 being slidably arranged is that the load carrier 4 is provided with a fourth sliding rail parallel to the extension direction of the load carrier 4 on the side surface, the motor base 33 of the second electric telescopic rod is provided with a fourth sliding block 13 matched with the fourth sliding rail, and the load carrier 4 is provided with a fourth electric cylinder 3 for driving the second electric telescopic rod 32 to reciprocate on the side surface of the load carrier 4, and the piston rod 5 of the fourth electric cylinder is connected with the fourth sliding block 13. By arranging the fourth sliding rail parallel to the extension direction of the load carrier 4 on the side surface, and matching the fourth sliding block 13 perfectly matched with the fourth sliding rail on the motor base 33 of the second electric telescopic rod, the second electric telescopic rod 32 can realize stable and accurate reciprocating movement on the load carrier 4. This design not only improves the flexibility of operation, but also ensures the accurate positioning of the second electric telescopic rod 32 during movement, meeting the demand of high-precision operation.

[0074] In one of the technical solutions, the temperature sensor is a thermocouple. The thermocouple is arranged at a heat generating part of the electric vehicle electric control system. The thermocouple, as a mature temperature sensor, has very high measurement accuracy. It can accurately perceive and reflect the temperature change of the measured object, and can maintain high measurement accuracy even in extreme or complex working environments. The measurement range of the thermocouple is wide, covering from low temperature to high temperature. The thermocouple sensor also has good stability and reliability, and can maintain stable performance under long-time continuous working conditions. It has simple structure, is solid and durable, is not easily disturbed or damaged by external environment, and is suitable for various harsh working environments.

[0075] In one of the technical solutions, the side surface of the abutting plate 29 is provided with a rubber pad layer, and the pressure sensor is embedded in the rubber pad layer and flush with the outer side surface of the rubber pad layer. The rubber pad layer has good elasticity and deformation ability, and can more uniformly distribute and transmit pressure. When external pressure acts on the abutting plate 29, the rubber pad layer can absorb and disperse the pressure, so that the pressure sensor can more accurately capture the real pressure value, avoiding measurement errors caused by uneven pressure distribution. The setting of the rubber pad layer can effectively protect the electric vehicle.

[0076] In one of the technical solutions, one side of the platform body 1 provided with the I-shaped support is provided with a slope 41, which facilitates the movement of the electric vehicle to the test position.

[0077] The number of devices and the scale of processing described herein are used to simplify the description of the utility model. The application, modification and change of the temperature monitoring device of the electric vehicle electric control system under the specified load of the utility model are obvious to those skilled in the art.

[0078] Although the embodiments of the present application have been disclosed as above, it is not limited to the application listed in the specification and the embodiments, and it can be applied to various fields suitable for the present application. For those skilled in the art, other modifications can be easily realized, and therefore the present application is not limited to specific details and the figures shown and described herein.

Claims

1. Temperature monitoring device for electrically controlled systems of electric vehicles under a specified load, characterized by, The utility model relates to a vehicle wheel rolling simulation test device, including: Support platform, including platform body, the pair of H -shaped support of parallel arrangement in platform body opposite side, the platform body middle is equipped with the accommodation cavity, the top of accommodation cavity is equipped with the baffle; Car body fixed module, including the pair of horizontal pedestal of embedding platform body under the horizontal crosspiece of the pair of H -shaped support, the pair of slide rail that can slide is arranged on the pair of horizontal pedestal, at least two clamping seats can slide and be arranged on any slide rail, any clamping seat is equipped with the first electric telescopic rod, the telescopic part of first electric telescopic rod is equipped with a clamping jaw and a abutting plate, the clamping jaw and the abutting plate are located on both sides of the first electric telescopic rod, and the abutting plate of adjacent first electric telescopic rod is close to setting, the upper surface of horizontal pedestal is flush with the upper surface of platform body; Wheel rolling simulation module, including the pair of roller column of setting in the accommodation cavity, and the pair of roller column is located on both sides of the baffle, any roller column is parallel with the horizontal crosspiece, and any roller column includes circumferential rotation roller shaft and a plurality of rollers that are circumferentially rotatable and are sleeved on the roller shaft and rotate with the roller shaft; Load adjustment module, including the pair of load carrier that can slide and be arranged between the pair of horizontal crosspiece, any load carrier is slidably provided with downwardly extending second electric telescopic rod, and the free end of second electric telescopic rod is provided with load plate, and the bottom of load plate is provided with pressure sensor; Test module, including temperature sensor arranged at test point and terminal receiving data, the temperature sensor and the pressure sensor are electrically connected with the terminal; Wherein, the platform body is provided with a pair of drive assemblies for driving the pair of roller columns to reciprocate along the extension direction of the load carrier.

2. The temperature monitoring device of the electric vehicle electric control system under a specified load according to claim 1, characterized in that, The drive assembly includes: First motor, the motor shaft of first motor is connected with a rotating shaft through a first coupling, and a pair of bevel gears are sleeved on the rotating shaft; A pair of lead screws are connected with a pair of pinion gears in a pair of bevel gears, and a pair of pinion gears are engaged with a pair of bevel gears respectively; Wherein, the reciprocating nuts on the pair of lead screws are connected with the second couplings on both ends of the roller shaft respectively.

3. The temperature monitoring device for an electric vehicle control system under a specified load according to claim 2, wherein The specific structure of any slide rail and the pair of horizontal pedestal slidably arranged is that a first sliding rail parallel to the extension direction of any horizontal pedestal is arranged on any horizontal pedestal, and a first sliding block embedded in a pair of first sliding rails is arranged on both ends of any slide rail, and one of a pair of first sliding blocks is connected with the piston rod of the first electric cylinder to drive the slide rail to reciprocate on the horizontal pedestal.

4. The temperature monitoring device for an electric vehicle under a specified load according to claim 3, wherein The specific structure of the clamping seat and the slide rail slidably arranged is that a second sliding rail parallel to the extension direction of the slide rail is arranged on the bottom of the slide rail, a second sliding block adapted to the second sliding rail is arranged on the bottom of the clamping seat sleeved on the slide rail, and a second electric cylinder for driving the clamping seat to reciprocate on the slide rail is arranged on the slide rail.

5. The temperature monitoring device for an electric vehicle control system under a specified load according to claim 4, wherein The specific structure of the slidable arrangement of the load carrier and the horizontal cross frame is that a third sliding rail parallel to the extending direction of any horizontal cross frame is arranged on the horizontal cross frame, and a third sliding block adapted to the third sliding rail is arranged on the two ends of any load carrier, one of the third sliding blocks in a pair is connected to the piston rod of a third electric cylinder through an L-shaped plate to drive the reciprocating movement of the load carrier on the horizontal cross frame.

6. The temperature monitoring device for an electric vehicle under a specified load according to claim 5, wherein The specific structure of the slidable arrangement of the second electric telescopic rod and the load carrier is that a fourth sliding rail parallel to the extending direction of the load carrier is arranged on the side surface of the load carrier, a fourth sliding block adapted to the fourth sliding rail is arranged on the motor base of the second electric telescopic rod, and a fourth electric cylinder for driving the reciprocating movement of the second electric telescopic rod on the side surface of the load carrier is arranged on the load carrier.

7. The temperature monitoring device for an electric vehicle under a specified load according to claim 6, wherein The temperature sensor is a thermocouple.

8. The temperature monitoring device for an electric vehicle under a specified load of claim 7, wherein, The side surface of the abutting plate is provided with a rubber pad layer, and the pressure sensor is embedded in the rubber pad layer and flush with the outer side surface of the rubber pad layer.

9. The temperature monitoring device for an electric vehicle under a specified load of claim 8, wherein, One side of the platform body provided with the I-shaped support is provided with a slope.

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