A vehicle electromagnetic immunity test auxiliary device

Abstract

The utility model relates to vehicle test technical field especially is a kind of vehicle electromagnetic interference immunity test auxiliary device, including support plate, the front and rear both ends of support plate are fixedly installed with support frame, and two support frames are symmetrically set, the front end fixed mounting of support frame in front part is equipped with controller, the lower end of two support frames is equipped with two universal wheels, positioning piece is commonly provided between two support frames, the upper end left and right sides of support plate are fixedly connected with slide rail, and test mechanism is slidably connected on support plate through two slide rails.The utility model discloses a kind of vehicle electromagnetic interference immunity test auxiliary device, by the meshing of driving gear and transmission rack, make mobile frame accurately simulate the action of key close to and leave vehicle door handle, realize automation test, reduce artificial intervention and promote test efficiency.Simultaneously, the design of positioning piece can ensure the height stability of device in detection process, significantly improve the accuracy and reliability of test data.

Description

Technical Field

[0001] This utility model relates to the field of vehicle testing technology, and in particular to an auxiliary device for testing vehicle electromagnetic immunity. Background Technology

[0002] In electromagnetic compatibility (EMC) testing of modern vehicles, particularly for the functional verification of keyless entry and start systems (KESSY), existing testing equipment and technologies face numerous challenges. Traditional testing methods typically rely on manual operation or simple mechanical devices to simulate the movement of a key approaching and leaving the vehicle door handle. This approach is not only time-consuming and labor-intensive but also difficult to precisely control the trajectory and speed, resulting in poor consistency and repeatability of test data. Furthermore, existing equipment exhibits poor stability, easily displaced by slight vibrations or external forces, affecting the accuracy of test results. Therefore, we propose an auxiliary device for testing vehicle electromagnetic immunity. Utility Model Content

[0003] The main objective of this invention is to provide an auxiliary device for testing the electromagnetic immunity of vehicles, which can effectively solve the problems in the background art.

[0004] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0005] An auxiliary device for testing the electromagnetic immunity of a vehicle includes a support plate, with support frames fixedly installed at both the front and rear ends of the support plate, and the two support frames are arranged symmetrically front to back. A controller is fixedly installed at the front end of the support frame located at the front end. Two universal wheels are provided at the lower ends of the two support frames. A positioning component is provided between the two support frames. Slide rails are fixedly connected to the left and right sides of the upper end of the support plate. A testing mechanism is slidably connected to the support plate through the two slide rails.

[0006] The testing mechanism includes a movable frame, which has a U-shaped structure. The lower end of the upper part of the movable frame has two sliding grooves that cooperate with the slide rail. The movable frame is slidably connected to the support plate through the two sliding grooves. A placement box is fixedly installed in the middle of the upper part of the movable frame.

[0007] Preferably, a forward and reverse motor is fixedly installed at one end of the lower part of the mobile frame, and a rotating rod is fixedly installed at the output end of the forward and reverse motor. The rotating rod is movably connected to the mobile frame, and a drive gear is fixedly installed on the rotating rod.

[0008] By adopting the above technical solution, the controller centrally controls the actions of each component, including the working status of the forward and reverse motors and the extension and retraction of the electric telescopic pole, simplifying the operation process. Users only need to place the key in the storage box on the mobile frame and send a command through the controller to start the testing process.

[0009] Preferably, a shielding cover is fixedly installed at one end of the lower part of the mobile frame, and the forward and reverse motors are sleeved inside the shielding cover.

[0010] By adopting the above technical solution, the design of the shielding cover effectively reduces the impact of external electromagnetic interference on the testing process and improves the accuracy of the test results.

[0011] Preferably, a transmission rack is fixedly connected to the lower end of the support plate, the transmission rack is positioned corresponding to the drive gear, and the transmission rack and the drive gear mesh with each other.

[0012] By employing the above technical solution—using forward and reverse motors to drive a drive gear that meshes with a transmission rack—the moving frame moves back and forth along a slide rail, simulating the action of a key approaching and leaving a vehicle door handle. This automated design not only reduces manual intervention but also significantly shortens the time required for each test, improving overall testing efficiency.

[0013] Preferably, the positioning component includes a fixing plate, and four fixing plates are provided. Two fixing plates are fixedly connected to the left and right ends of the support frame respectively. An electric telescopic rod is fixedly installed on the upper end of each of the four fixing plates. The output ends of two electric telescopic rods located on the same side pass through the fixing plate and are fixedly connected to the base plate together. Multiple connecting plates are fixedly welded between the two base plates, and the multiple connecting plates are distributed at equal distances.

[0014] By adopting the above technical solution, the base plate is pushed downward by an electric telescopic rod until the base plate and connecting plate contact the ground, so that the casters are lifted off the ground, ensuring the stability of the entire device during the testing process. This design can effectively prevent the device from being displaced due to slight vibration or external force during the test, ensuring a high degree of stability of the test environment, thereby significantly improving the stability of the test and the reliability of the data.

[0015] Preferably, the two base plates are slidably connected to the left and right sides of the support frame, and the lower end surfaces of the two base plates and the lower end surfaces of the multiple connecting plates are all located on the same plane.

[0016] Compared with the prior art, the present invention has the following beneficial effects:

[0017] 1. By using a forward and reverse motor to drive a drive gear that meshes with a transmission rack, the moving frame moves back and forth along a slide rail, simulating the action of a key approaching and leaving a vehicle door handle. This automated design not only reduces manual intervention but also significantly shortens the time required for each test, improving overall testing efficiency.

[0018] 2. The base plate is moved downward by the electric telescopic rod until the base plate and connecting plate contact the ground, so that the casters are off the ground. This ensures the stability of the entire device during the testing process. This design can effectively prevent the device from being displaced due to slight vibration or external force during the test, ensuring a high degree of stability of the test environment, thereby significantly improving the stability of the test and the reliability of the data. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of an auxiliary device for testing the electromagnetic immunity of a vehicle according to the present invention.

[0020] Figure 2 This is a schematic diagram of the connection structure between the positioning component and the support frame of the auxiliary device for testing the electromagnetic interference resistance of a vehicle according to the present invention.

[0021] Figure 3 This is a schematic diagram of the test mechanism of an auxiliary device for testing the electromagnetic immunity of a vehicle according to the present invention;

[0022] Figure 4 This is a schematic diagram of the bottom structure of the support plate of the auxiliary device for testing the electromagnetic immunity of a vehicle according to the present invention.

[0023] In the diagram: 1. Support plate; 2. Support frame; 3. Casters; 4. Positioning component; 41. Fixing plate; 42. Electric telescopic rod; 43. Base plate; 44. Connecting plate; 5. Slide rail; 6. Testing mechanism; 61. Moving frame; 62. Slide groove; 63. Placement box; 64. Forward and reverse motor; 65. Rotating rod; 66. Drive gear; 67. Shielding cover; 7. Controller; 11. Transmission rack. Detailed Implementation

[0024] To make the technical means, creative features, objectives and effects of this utility model easier to understand, the present utility model will be further described below in conjunction with specific embodiments.

[0025] In the description of this utility model, it should be noted that the terms "upper," "lower," "inner," "outer," "front end," "rear end," "both ends," "one end," and "the other end," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0026] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "equipped with," and "connected," etc., should be interpreted broadly. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can be a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] Please see Figure 1-4 This utility model provides a technical solution:

[0028] An auxiliary device for testing the electromagnetic immunity of a vehicle includes a support plate 1. Support frames 2 are fixedly installed at both the front and rear ends of the support plate 1, and the two support frames 2 are arranged symmetrically front to back. A controller 7 is fixedly installed at the front end of the support frame 2. Two casters 3 are provided at the lower ends of the two support frames 2. A positioning component 4 is provided between the two support frames 2. Slide rails 5 are fixedly connected to the left and right sides of the upper end of the support plate 1. A testing mechanism 6 is slidably connected to the support plate 1 through the two slide rails 5.

[0029] In this embodiment, the testing mechanism 6 includes a movable frame 61, which has a U-shaped structure. The lower end of the upper part of the movable frame 61 has two sliding grooves 62 that cooperate with the slide rail 5. The movable frame 61 is slidably connected to the support plate 1 through the two sliding grooves 62. A placement box 63 is fixedly installed in the middle of the upper part of the movable frame 61. A forward and reverse motor 64 is fixedly installed at one end of the lower part of the movable frame 61. A rotating rod 65 is fixedly installed at the output end of the forward and reverse motor 64, and the rotating rod 65 is movably connected to the movable frame 61. A drive gear 66 is fixedly installed on the rotating rod 65. A shield 67 is fixedly installed at one end of the lower part of the movable frame 61, and the forward and reverse motor 64 is sleeved in the shield 67. A transmission rack 11 is fixedly connected to the lower end of the support plate 1. The position of the transmission rack 11 corresponds to that of the drive gear 66, and the transmission rack 11 and the drive gear 66 mesh with each other.

[0030] The above solution involves a forward and reverse motor 64 driving a drive gear 66 to mesh with a transmission rack 11, causing the moving frame 61 to move back and forth along the slide rail 5, simulating the action of a key approaching and leaving a vehicle door handle. This automated design not only reduces manual intervention but also significantly shortens the time required for each test, improving overall testing efficiency.

[0031] In this embodiment, the positioning component 4 includes a fixing plate 41. Four fixing plates 41 are provided, and two fixing plates 41 are fixedly connected to the left and right ends of the support frame 2 respectively. An electric telescopic rod 42 is fixedly installed on the upper end of each of the four fixing plates 41. The output ends of two electric telescopic rods 42 located on the same side pass through the fixing plate 41 and are fixedly connected to a base plate 43. Multiple connecting plates 44 are fixedly welded between the two base plates 43, and the multiple connecting plates 44 are evenly distributed. The two base plates 43 are slidably connected to the left and right sides of the support frame 2 respectively. The lower end surfaces of the two base plates 43 and the lower end surfaces of the multiple connecting plates 44 are all located on the same plane.

[0032] The above solution involves using an electric telescopic rod 42 to push the base plate 43 downwards until the base plate 43 and connecting plate 44 contact the ground, causing the casters 3 to detach from the ground. This ensures the stability of the entire device during the testing process. This design effectively prevents the device from shifting due to slight vibrations or external forces during testing, ensuring a highly stable testing environment and significantly improving the stability of the test and the reliability of the data.

[0033] It should be noted that this utility model is an auxiliary device for testing the electromagnetic immunity of vehicles. During use, firstly, the entire device is easily moved to the designated test position using the casters 3 at the lower end of the support frame 2. Once the device reaches the predetermined position, the electric telescopic rod 42 mounted on the upper end of the fixed plate 41 is activated. The electric telescopic rod 42 extends, pushing the connected base plate 43 downwards. The base plate 43 slides along both sides of the support frame 2 until the base plate 43 and the connecting plate 44 contact the ground. At this point, the casters 3 detach from the ground, ensuring the stability of the entire device during the testing process. The key is then placed in the placement box 63 at the upper end of the moving frame 61. The controller 7 then sends a command to the forward / reverse motor 64 to activate it. The motor 64 drives the drive gear 66 mounted on the rotating rod 65 to rotate. The drive gear 66 meshes with the transmission rack 11 at the lower end of the support plate 1, causing the moving frame 61 to move back and forth along the slide rail 5, simulating the key approaching and leaving the vehicle door handle. Through multiple cycles of reciprocating motion, the process of the key approaching and moving away from the vehicle in actual use is simulated, activating the vehicle's KESSY system and recording the corresponding response data. After the test, the forward / reverse motor 64 is stopped, the moving frame 61 is stopped at its initial position, the electric telescopic rod 42 is retracted, the base plate 43 is raised to restore the device's height, and the entire device is moved out of the test area using the casters 3, preparing for the next test.

[0034] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. An auxiliary device for testing the electromagnetic immunity of a vehicle, comprising a support plate (1), characterized in that: The support plate (1) is fixedly installed with support frames (2) at both the front and rear ends, and the two support frames (2) are arranged symmetrically in front and behind. The front end of the support frame (2) is fixedly installed with a controller (7). The lower ends of the two support frames (2) are provided with two universal wheels (3). The two support frames (2) are provided with a positioning component (4). The upper left and right sides of the support plate (1) are fixedly connected with slide rails (5). The support plate (1) is slidably connected with a testing mechanism (6) through the two slide rails (5). The testing mechanism (6) includes a movable frame (61), which is a U-shaped structure. The lower end of the upper part of the movable frame (61) has two sliding grooves (62) that cooperate with the slide rail (5). The movable frame (61) is slidably connected to the support plate (1) through the two sliding grooves (62). A placement box (63) is fixedly installed in the middle of the upper end of the movable frame (61).

2. The auxiliary device for testing the electromagnetic immunity of a vehicle according to claim 1, characterized in that: A forward and reverse motor (64) is fixedly installed at one end of the lower part of the mobile frame (61). A rotating rod (65) is fixedly installed at the output end of the forward and reverse motor (64), and the rotating rod (65) is movably connected to the mobile frame (61). A drive gear (66) is fixedly installed on the rotating rod (65).

3. The auxiliary device for testing the electromagnetic immunity of a vehicle according to claim 2, characterized in that: A shield (67) is fixedly installed at one end of the lower part of the mobile frame (61), and the forward and reverse motor (64) is sleeved inside the shield (67).

4. The auxiliary device for testing the electromagnetic immunity of a vehicle according to claim 1, characterized in that: The lower end of the support plate (1) is fixedly connected to a transmission rack (11), the transmission rack (11) is positioned corresponding to the drive gear (66), and the transmission rack (11) and the drive gear (66) mesh with each other.

5. The auxiliary device for testing the electromagnetic immunity of a vehicle according to claim 1, characterized in that: The positioning component (4) includes a fixing plate (41). There are four fixing plates (41), and two fixing plates (41) are fixedly connected to the left and right ends of the support frame (2) respectively. An electric telescopic rod (42) is fixedly installed on the upper end of each of the four fixing plates (41). The output ends of the two electric telescopic rods (42) located on the same side pass through the fixing plate (41) and are fixedly connected to the base plate (43). Multiple connecting plates (44) are fixedly welded between the two base plates (43), and the multiple connecting plates (44) are evenly distributed.

6. The auxiliary device for testing the electromagnetic immunity of a vehicle according to claim 5, characterized in that: The two base plates (43) are slidably connected to the left and right sides of the support frame (2), and the lower end surfaces of the two base plates (43) and the lower end surfaces of the multiple connecting plates (44) are all located on the same plane.

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