Aging test device for power amplifier module of unmanned aerial vehicle countermeasure device

Abstract

The utility model relates to unmanned aerial vehicle countermeasure equipment test technical field discloses a kind of power amplifier module aging test device for unmanned aerial vehicle countermeasure device, including the cabinet test box body for testing module aging, the inside of the cabinet test box body is equipped with multiple power amplifier modules for aging test, the inside of the cabinet test box body is equipped with the placing assembly that can change vertical direction placing interval freely according to different power amplifier module size;Through the sliding cooperation of supporting column and placing plate, in combination with the accurate location of limiting groove, the interval of adjacent placing plate can be flexibly adjusted, and the power amplifier module of different size is adapted, the poor adaptability problem of existing device is solved;Using the linkage structure of fixed assembly, by rotating block drive rotating column and third rotating disc, four fixed columns can be inserted or removed from fixed slot synchronously, the quick fixing and adjustment of placing plate are realized, convenient operation and high efficiency.

Description

Technical Field

[0001] This utility model relates to the field of testing technology for drone countermeasure equipment, and in particular to an aging test device for a power amplifier module for drone countermeasure devices. Background Technology

[0002] Currently, power amplifier modules used in drone countermeasures must undergo rigorous aging tests before leaving the factory to screen out early failure products and verify long-term stability. As the core signal amplification component of drone countermeasures, the power amplifier module needs to maintain stable parameters under high power and long-term working scenarios, such as no significant drift in output power, gain, and distortion. Therefore, aging tests need to simulate the continuous high load, extreme temperature and humidity conditions in actual operation to ensure that the countermeasures can reliably cope with drone interception missions after assembly.

[0003] The core equipment for the above tests is the cabinet-type test box for power amplifier modules. The testing principle is as follows: the power amplifier module is placed on the support structure inside the box, and the power supply module integrated inside the box provides the appropriate voltage, such as DC 12V / 24V, to simulate the actual power supply of the countermeasures device. The signal generator inputs the basic interference signal of a specific frequency band, such as 2.4GHz / 5.8GHz, covering the common communication frequency bands of drones. The simulated load, such as a 50Ω RF load, absorbs the high-power signal amplified by the power amplifier module. At the same time, the temperature control module, such as heating tubes and cooling fans, regulates the temperature inside the box, usually between 40-85℃, to accelerate the aging process. The power meter, spectrum analyzer and other monitoring modules collect key parameters such as the output power and harmonic distortion of the power amplifier module in real time. After running continuously for 24-100 hours, unqualified products with excessive parameter drift are screened out.

[0004] However, existing cabinet-style test boxes have shortcomings. The load-bearing structure, shelves, and brackets of most devices adopt a fixed installation design, or only support a few preset spacing adjustment levels, such as only 10cm, 20cm, and 30cm. When facing power amplifier modules of different sizes, such as the power amplifier module of a small portable countermeasure device with a height of only 5cm and the power amplifier module of a large fixed countermeasure device with a height of 15cm, the fixed spacing or limited adjustment levels cannot accurately match the module size: if the spacing is too large, such as placing a 5cm high module with a 30cm spacing, it will lead to a significant reduction in the utilization rate of the internal space of the box. The box that can originally accommodate 6 layers of modules can only accommodate 2 layers, wasting test resources; if the spacing is too small, such as placing a 15cm high module with a 10cm spacing, the module cannot be installed normally, and a special test box needs to be replaced, increasing the equipment investment cost.

[0005] Even if some devices support spacing adjustment, it is still necessary to remove the fixing bolts on both sides of the shelf. Usually, 4-6 bolts need to be removed for each layer, the shelf needs to be moved manually to the target position, and then the bolts need to be tightened to complete the fixation. In batch testing scenarios, such as when 3-5 batches of power amplifier modules of different specifications need to be replaced every day, repeatedly removing bolts is not only time-consuming, with each adjustment taking 10-15 minutes, but also prone to causing the shelf fixation to loosen due to bolt wear or loss, increasing the risk of module displacement during testing, and thus affecting the accuracy of monitoring data. Utility Model Content

[0006] To solve the above-mentioned technical problems, this utility model provides an aging test device for power amplifier modules used in drone countermeasures.

[0007] This utility model is achieved using the following technical solution: an aging test device for a power amplifier module of a drone countermeasure, comprising a cabinet-type test box body for testing the aging of the module, wherein the cabinet-type test box body is provided with multiple power amplifier modules for aging tests, and the cabinet-type test box body is provided with a placement component that can freely change the vertical placement spacing according to different power amplifier module sizes. The placement component is provided with multiple fixing components that can fix the position of the placement component, and the placement component includes support columns fixedly installed at the four corners inside the cabinet-type test box body. The cabinet-type test box body is provided with multiple placement plates for supporting the power amplifier modules, and each placement plate is slidably engaged with four support columns.

[0008] By utilizing the sliding cooperation between the support column and the placement plate, the placement plate can be pushed along the vertical direction of the support column, thereby adjusting the distance between adjacent placement plates. This adapts to power amplifier modules of different heights and sizes, solving the problem of fixed layer spacing or spacing that can only be adjusted within a fixed range and cannot be compatible with multiple specifications of modules, thus improving the device's adaptability to power amplifier modules of different sizes.

[0009] As a further improvement to the above solution, each of the four corners of the placement plate is provided with a limiting groove, each of the support columns is located inside the adjacent limiting groove, and each limiting groove is adapted to the adjacent support column.

[0010] Through the above technical solution, the matching and cooperation of the limiting groove and the support column can accurately limit the sliding direction of the placement plate, avoid horizontal deviation when the placement plate moves vertically or carries the power amplifier module, ensure that the placement plate always remains in a horizontal state, improve the stability of the power amplifier module placement, and indirectly ensure the accuracy of the test data.

[0011] As a further improvement to the above solution, the fixing component includes a fixing groove on one side of each support column, the inner walls of each fixing groove are wavy on both sides, the two wavy inner walls of each fixing groove are mirror images, a limiting sleeve is fixedly installed at the four bottom corners of each placement plate, a fixing column is slidably arranged inside each limiting sleeve, one end of each fixing column extends into the interior of the adjacent fixing groove and is abutted by the two side crests, and the limiting sleeve is used to restrict the movement direction of the fixing column.

[0012] Through the above technical solution, the limiting sleeve can restrict the fixed column to slide only in the horizontal direction, ensuring that the fixed column can be accurately inserted into the fixed groove; the wave crests of the wavy inner wall of the fixed groove can form a clamping limit on the fixed column. When the fixed column is inserted into the fixed groove, the wave crests on both sides can abut against the fixed column to prevent the fixed column from sliding, thereby fixing the position of the placement plate and preventing the placement plate from sliding down due to vibration during the test.

[0013] As a further improvement to the above solution, a first rotating disk is rotatably mounted on the other end of each of the fixed columns, a first pushing column is rotatably mounted on one side of each of the first rotating disks, a second rotating disk is provided between every two adjacent first pushing columns, each of the second rotating disks is rotatably mounted to one end of an adjacent first pushing column, a second pushing column is rotatably mounted on one side of each of the second rotating disks, and one end of each second pushing column extends toward the center of the bottom side of the adjacent placement plate.

[0014] With the above technical solution, when the second push column moves, the first push column can be driven to move and rotate through the second rotating disk, and then the fixed column can be pushed or pulled along the limit sleeve through the first rotating disk, so as to realize the synchronous extension and retraction of multiple fixed columns. There is no need to operate each fixed column individually, which improves the operation efficiency of fixing or adjusting the placement plate.

[0015] As a further improvement to the above solution, a rotating column is rotatably installed at the bottom center of each of the placement plates, a third rotating disk is fixedly sleeved on each of the rotating columns, each of the third rotating disks is rotatably engaged with one end of the adjacent second pushing column, a rotating block is fixedly installed at one end of each of the rotating columns, and a rubber plate is fixedly sleeved at one end of each of the rotating columns that is in contact with the placement plate, and each rubber plate is in contact with the bottom side of the adjacent placement plate.

[0016] Through the above technical solution, the rotating block makes it easy for the operator to rotate the rotating column. The rotating column drives the third rotating disk to rotate synchronously. The third rotating disk, through its rotational cooperation with the second pushing column, can push the second pushing column to move in the horizontal direction, realizing the power input of the linkage structure. The rubber plate can increase the friction between the rotating column and the placement plate, prevent the rotating column from rotating on its own when not in operation, and ensure the stability of the locking state of the fixed component.

[0017] As a further improvement to the above solution, each of the placement plates has sliding grooves on both sides of its bottom, and each of the second rotating disks has a sliding block fixedly installed on its top. The top of each sliding block extends upward into the interior of the adjacent sliding groove to limit the movement direction of the second rotating disk.

[0018] Through the above technical solution, the cooperation between the sliding block and the sliding groove can restrict the second rotating disk to move horizontally only along the direction of the sliding groove, avoid the second rotating disk from deviating during the movement, ensure that the second rotating disk can accurately drive the first pushing column and the fixed column to move, and ensure the stability and reliability of the linkage structure of the fixed component.

[0019] Compared with the prior art, the beneficial effects of this utility model are as follows: This invention utilizes the sliding cooperation between the support column and the placement plate, combined with the precise positioning of the limiting groove, to flexibly adjust the spacing between adjacent placement plates, adapting to power amplifier modules of different sizes and solving the problem of poor compatibility of existing devices. By using the linkage structure of the fixing components, the rotating block drives the rotating column and the third rotating disk, which can simultaneously control the insertion or removal of the four fixing columns from the fixing groove, realizing the rapid fixing and adjustment of the placement plate, which is convenient and efficient. Attached Figure Description

[0020] Figure 1 This is a three-dimensional structural diagram of the present invention; Figure 2 This is a schematic diagram of the structure of the present invention with placement components; Figure 3 This utility model Figure 2 Enlarged schematic diagram of part A; Figure 4 This is a cross-sectional structural diagram of the present invention, which includes a placement component and a fixing component.

[0021] Explanation of key symbols: 1. Cabinet-type test box body; 2. Power amplifier module; 301. Support column; 302. Placement plate; 401. Fixing slot; 402. Limiting sleeve; 403. Fixing column; 5. First rotating disk; 6. First pushing column; 7. Second rotating disk; 8. Second pushing column; 9. Rotating column; 10. Third rotating disk; 11. Rotating block; 12. Rubber plate; 13. Sliding block. Detailed Implementation

[0022] The present invention will now be further described in conjunction with the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0023] Please combine Figures 1-4This embodiment of an aging test device for a power amplifier module for a drone countermeasure includes a cabinet-type test box body 1 for testing module aging. The cabinet-type test box body 1 is provided with multiple power amplifier modules 2 for aging tests. The cabinet-type test box body 1 is provided with a placement component that can freely change the vertical placement spacing according to the size of different power amplifier modules 2. The placement component is provided with multiple fixing components that can fix the position of the placement component.

[0024] The placement assembly includes support columns 301 fixedly installed at the four corners inside the cabinet-type test box body 1. The cabinet-type test box body 1 has multiple placement plates 302 for supporting the power amplifier module 2. Each placement plate 302 is slidably engaged with the four support columns 301. Each placement plate 302 has a limit groove at each of its four corners. Each support column 301 is located inside the adjacent limit groove, and each limit groove is adapted to the adjacent support column 301.

[0025] By utilizing the sliding engagement between the support column 301 and the placement plate 302, the placement plate 302 can be pushed along the vertical direction of the support column 301, thereby adjusting the distance between adjacent placement plates 302. This adapts to power amplifier modules 2 of different heights and sizes, solving the problem of fixed layer spacing or spacing that can only be adjusted within a fixed range and cannot be compatible with multiple specifications of modules, thus improving the device's adaptability to power amplifier modules 2 of different sizes.

[0026] The fixing components include fixing grooves 401 on one side of each support column 301, with both sides of the inner wall of each fixing groove 401 being wavy, and the two wavy inner walls of each fixing groove 401 being mirror images. Limiting sleeves 402 are fixedly installed at the four bottom corners of each placement plate 302, and fixing columns 403 are slidably arranged inside each limiting sleeve 402. One end of each fixing column 403 extends into the interior of the adjacent fixing groove 401 and is abutted by the two side crests. The limiting sleeves 402 are used to restrict the movement direction of the fixing columns 403.

[0027] The limiting sleeve 402 can restrict the fixed post 403 to slide only in the horizontal direction, ensuring that the fixed post 403 can be accurately inserted into the fixed groove 401; the crests of the wavy inner wall of the fixed groove 401 can form a clamping limit on the fixed post 403. When the fixed post 403 is inserted into the fixed groove 401, the crests on both sides can abut against the fixed post 403 to prevent the fixed post 403 from sliding, thereby fixing the position of the placement plate 302 and preventing the placement plate 302 from sliding down due to vibration during the test.

[0028] Each fixed post 403 has a first rotating disk 5 rotatably mounted on the other end. Each first rotating disk 5 has a first pushing post 6 rotatably mounted on one side. A second rotating disk 7 is provided between every two adjacent first pushing posts 6. Each second rotating disk 7 is rotatably mounted to one end of an adjacent first pushing post 6. Each second rotating disk 7 has a second pushing post 8 rotatably mounted on one side. One end of each second pushing post 8 extends toward the center of the bottom side of the adjacent placement plate 302.

[0029] When the second push column 8 moves, the first push column 6 can be moved and rotated by the second rotating disk 7, and then the fixed column 403 can be pushed or pulled by the first rotating disk 5 to slide along the limiting sleeve 402, so as to realize the synchronous extension and retraction of multiple fixed columns 403 without the need to operate each fixed column 403 individually, thus improving the operation efficiency of fixing or adjusting the placement plate 302.

[0030] Each placement plate 302 has a rotating column 9 rotatably mounted at the bottom center. Each rotating column 9 is fixedly fitted with a third rotating disk 10. Each third rotating disk 10 is rotatably engaged with the end of the adjacent second pushing column 8. Each rotating column 9 has a rotating block 11 fixedly mounted at one end. Each rotating column 9 has a rubber plate 12 fixedly fitted at the end that is in contact with the placement plate 302. Each rubber plate 12 is in contact with the bottom side of the adjacent placement plate 302.

[0031] The rotating block 11 facilitates the operator to rotate the rotating column 9. The rotating column 9 drives the third rotating disk 10 to rotate synchronously. The third rotating disk 10, through its rotational cooperation with the second pushing column 8, can push the second pushing column 8 to move in the horizontal direction, realizing the power input of the linkage structure. The rubber plate 12 can increase the friction between the rotating column 9 and the placement plate 302, preventing the rotating column 9 from rotating on its own when not in operation, and ensuring the stability of the locking state of the fixed component.

[0032] Each placement plate 302 has sliding grooves on both sides of its bottom, and each second rotating disk 7 has a sliding block 13 fixedly installed on its top. The top of each sliding block 13 extends upward into the interior of the adjacent sliding groove to limit the movement direction of the second rotating disk 7.

[0033] The implementation principle of the aging test device for the power amplifier module of the UAV countermeasure in this embodiment is as follows: In the initial state, one end of the fixed column 403 is inserted between the wavy inner wall of the fixed groove 401 and is held in place by the wave crests on both sides, and the position of the placement plate 302 is locked; when it is necessary to adjust the spacing between adjacent placement plates 302 according to the size of the power amplifier module 2, the operator first holds the rotating block 11 at the center of the bottom side of the placement plate 302 and rotates the rotating block 11 clockwise.

[0034] The cooperation between the sliding block 13 and the sliding groove restricts the second rotating disk 7 to move horizontally only along the direction of the sliding groove, preventing the second rotating disk 7 from deviating during movement, ensuring that the second rotating disk 7 can accurately drive the first pushing column 6 and the fixed column 403 to move, and ensuring the stability and reliability of the linkage structure of the fixed components.

[0035] When the rotating block 11 rotates, it drives the rotating column 9, which is fixedly connected to it, to rotate clockwise synchronously. The rubber plate 12 rotates with the rotating column 9, but because the rubber plate 12 is in contact with the bottom side of the placement plate 302, friction is generated, which can prevent the rotating column 9 from rotating on its own when not in operation. When the rotating column 9 rotates, it drives the third rotating disk 10, which is fixedly sleeved on it, to rotate synchronously. Since the third rotating disk 10 is rotated and engaged with one end of the second pushing column 8, the rotation of the third rotating disk 10 will generate a horizontal pulling force on the second pushing column 8, causing the second pushing column 8 to move horizontally towards the center of the placement plate 302. When the second pushing column 8 moves, it drives the second rotating disk 7, which is rotated and connected to it, to move synchronously. At this time, the sliding block 13 on the top of the second rotating disk 7 slides horizontally along the sliding groove at the bottom of the placement plate 302. The engagement of the sliding block 13 and the sliding groove restricts the movement direction of the second rotating disk 7 and prevents it from deviating. When the second rotating disk 7 moves... This will cause one end of the first push column 6, which is rotatably connected to it, to move. The movement of one end of the first push column 6 will also cause the other end to move. Since the length of the first push column 6 is fixed, the movement of one end will cause the other end to move as well. When one end of the first push column 6 is pulled by the second rotating disk 7, the other end will pull the first rotating disk 5, which is rotatably connected to it, while the first push column 6 is moving. The first rotating disk 5, which is pulled by the first push column 6, will also move the fixed column 403, which is rotatably installed with it. Due to the restriction of the limiting sleeve 402, the fixed column 403 will only slide along the horizontal direction of the limiting sleeve 402 to the side away from the support column 301. As the fixed column 403 slides, the end of it that is inserted into the fixing groove 401 will gradually come out of the fixing groove 401. When the fixed column 403 is completely separated from the fixing groove 401, the locking state of the placement plate 302 is released, and it can move along the vertical direction of the support column 301.

[0036] The operator maintains the rotation of the rotating block 11 while supporting the edge of the placement plate 302 with the other hand, pushing the placement plate 302 upwards or downwards along the vertical direction of the support column 301. During the movement of the placement plate 302, its four corner limiting grooves always slide and engage with the support column 301 to ensure that the placement plate 302 moves horizontally and avoids deviation. When the distance between adjacent placement plates 302 is adjusted to a size that matches the height of the power amplifier module 2, the operator stops pushing the placement plate 302 and rotates the rotating block 11 counterclockwise.

[0037] When the rotating block 11 rotates counterclockwise, it drives the rotating column 9 and the third rotating disk 10 to rotate counterclockwise synchronously. The counterclockwise rotation of the third rotating disk 10 will generate a reverse horizontal thrust on the second pushing column 8, causing the second pushing column 8 to move horizontally away from the center of the placement plate 302. When the second pushing column 8 moves, it drives the second rotating disk 7 to slide in the opposite direction along the sliding groove, and then pushes the fixed column 403 to slide along the limiting sleeve 402 towards the side closer to the support column 301 through the first pushing column 6 and the first rotating disk 5. When one end of the fixed column 403 is reinserted between the wavy inner walls of the fixed groove 401 and is abutted by the crests on both sides, the rotating block 11 stops rotating. At this time, the position of the placement plate 302 is locked again and cannot move along the support column 301.

[0038] Repeat the above steps to adjust the spacing of all placement plates 302 to match the size of the corresponding power amplifier module 2. Then place the power amplifier module 2 one by one on the top surface of the placement plate 302. Then start the aging test function of the cabinet test box body 1 to perform aging test on the power amplifier module 2. During the test, the locking state of the fixing components can prevent the placement plate 302 from sliding down due to vibration, ensuring that the test is carried out stably.

[0039] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. An aging test device for power amplifier modules used in unmanned aerial vehicle (UAV) countermeasures, comprising a cabinet-type test box body (1) for testing module aging, wherein the cabinet-type test box body (1) is provided with multiple power amplifier modules (2) for aging tests, characterized in that, The cabinet-type test box body (1) is equipped with a placement component that can freely change the vertical placement spacing according to the size of different power amplifier modules (2). The placement component is equipped with multiple fixing components that can fix the position of the placement component. The placement component includes support columns (301) fixedly installed at the four corners inside the cabinet-type test box body (1). The cabinet-type test box body (1) is equipped with multiple placement plates (302) for supporting the power amplifier modules (2). Each placement plate (302) is slidably engaged with four support columns (301).

2. The aging test device for a power amplifier module for a drone countermeasure as described in claim 1, characterized in that, Each of the four corners of the placement plate (302) is provided with a limiting groove, and each of the support columns (301) is located inside the adjacent limiting groove. Each limiting groove is adapted to the adjacent support column (301).

3. The aging test device for a power amplifier module for a drone countermeasure as described in claim 1, characterized in that, The fixing component includes a fixing groove (401) on one side of each support column (301). The inner walls of each fixing groove (401) are wavy on both sides. The two wavy inner walls of each fixing groove (401) are mirror images of each other. Limiting sleeves (402) are fixedly installed at the four bottom corners of each placement plate (302). A fixing column (403) is slidably arranged inside each limiting sleeve (402). One end of each fixing column (403) extends into the interior of the adjacent fixing groove (401) and is abutted by the wavy peaks on both sides. The limiting sleeve (402) is used to restrict the movement direction of the fixing column (403).

4. The aging test device for a power amplifier module for a drone countermeasure as described in claim 3, characterized in that, Each of the fixed columns (403) has a first rotating disk (5) rotatably mounted on the other end. Each of the first rotating disks (5) has a first pushing column (6) rotatably mounted on one side. A second rotating disk (7) is provided between every two adjacent first pushing columns (6). Each of the second rotating disks (7) is rotatably mounted to one end of an adjacent first pushing column (6). Each of the second rotating disks (7) has a second pushing column (8) rotatably mounted on one side. One end of each of the second pushing columns (8) extends toward the center of the bottom side of the adjacent placement plate (302).

5. The aging test device for a power amplifier module for a drone countermeasure as described in claim 4, characterized in that, Each of the placement plates (302) has a rotating column (9) rotatably mounted at the bottom center. Each of the rotating columns (9) has a third rotating disk (10) fixedly mounted on it. Each of the third rotating disks (10) is rotatably engaged with one end of the adjacent second push column (8). Each of the rotating columns (9) has a rotating block (11) fixedly mounted on one end. Each of the rotating columns (9) has a rubber plate (12) fixedly mounted on one end of the placement plate (302). Each of the rubber plates (12) is in contact with the bottom side of the adjacent placement plate (302).

6. The aging test device for a power amplifier module for a drone countermeasure as described in claim 4, characterized in that, Each of the placement plates (302) has sliding grooves on both sides of its bottom, and each of the second rotating disks (7) has a sliding block (13) fixedly installed on its top. The top of each sliding block (13) extends upward into the interior of the adjacent sliding groove to limit the movement direction of the second rotating disk (7).

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