A special test fixture for filter testing
By introducing designs such as heat dissipation fans, sealing covers, brushes and guide blocks into the filter test fixture, the problems of poor heat dissipation, dust pollution and unstable mobile boards during the test are solved, and more efficient test data acquisition and device usage performance are achieved.
Patent Information
- Application Number
- CN202111535704.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Patents(China)
- Current Assignee / Owner
- Filing Date
- 2021-12-15
- Publication Date
- 2025-03-28
- Estimated Expiration
- 2041-12-15
AI Technical Summary
Existing special test fixtures for filter testing cannot effectively dissipate heat during the test, resulting in an increase in the filter temperature affecting the test data; secondly, the wiring post is susceptible to dust contamination and poor contact; thirdly, sliding friction causes the moving plate to move unstable and foreign objects to hinder it.
A test fixture including a base, foot pad, operating panel and display is designed, with a cooling fan for rapid heat dissipation, a sealed cover and brush for dust protection and automatic dust removal, and reduce friction through guide blocks and guide wheels to ensure smooth movement of the moving plate.
Through the use of the heat dissipation fan, the filter temperature is effectively reduced and the accuracy of the test data is improved. The sealing cover and brush design prevent dust pollution and ensure continuous testing; the combination of the guide block and the guide wheel reduces friction, ensures smooth movement of the moving plate, and improves the performance of the device.
Smart Images
Figure CN114236190B_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of filter test fixtures, and in particular to a special test fixture for filter testing. Background Art
[0002] The filter is a filter circuit composed of capacitors, inductors and resistors. The filter can effectively filter out the frequency point of a specific frequency in the power line or the frequency outside the frequency point, and obtain a power signal of a specific frequency, or eliminate the power signal after a specific frequency. During the filter test process, it needs to be fixed by a special fixture.
[0003] However, during the use of the existing special test fixture for filter testing, since the filter needs to be tested for withstand voltage or overcurrent, a large amount of heat will be generated in the filter during the test, and the device cannot dissipate the heat for the filter, which will affect the test data of the filter and reduce the practicality of the device. Secondly, during the use of some special test fixtures for filter testing, since the terminals are exposed, dust is easily attached to the terminals, which causes poor contact between the filter and the terminals, resulting in test interruption and reduced device functionality. In addition, in the existing special test fixture for filter testing, the slider slides in the slide groove to guide the movable plate, but due to the sliding friction between the two and when there is a foreign object in the slide groove, the movement of the movable plate will be hindered, resulting in the movable plate being unable to move smoothly, affecting the performance of the device. Therefore, a special test fixture for filter testing is urgently needed to solve the existing problems. Summary of the invention
[0004] The purpose of the present invention is to provide a special test fixture for filter testing in order to solve the above-mentioned problem.
[0005] The present invention achieves the above-mentioned purpose through the following technical solutions:
[0006] A special test fixture for filter testing, comprising a base, a foot, an operation panel and a display screen, comprising a base, a side panel, a threaded sleeve and a screw, wherein the side panel is fixed to one side of the upper end of the base, the threaded sleeve is installed on the side panel, the screw is installed in the threaded sleeve, a movable plate is arranged at one end of the screw, and a handle is connected to the other end of the screw, a slide groove is arranged at the upper end of the base, a guide block is arranged at the bottom end of the movable plate, a guide wheel is installed at the bottom end of the guide block, a side panel is fixed to the other side of the upper end of the base, a telescopic column is installed on one side wall of the side panel, and the telescopic column is installed on one side wall of the side panel. A fixing plate is connected to one end of the telescopic column, a spring is arranged on the outside of the telescopic column, a cooling fan is installed on one side of the upper end of the base, an operation button is arranged on one side wall of the base, a charging hole is arranged on the other side wall of the base, a battery pack is arranged on one side of the charging hole, a concave cavity is arranged on one side of the upper end of the base, a terminal is arranged in the concave cavity, a connecting line is installed on the side wall of the base opposite to the charging hole, a sealing cover is arranged on the upper end of the concave cavity, a shift block is fixed on one side of the sealing upper end, a cavity is arranged in the sealing cover, a brush is installed in the cavity, and a suction cup is installed at the bottom end of the base.
[0007] Furthermore, the side plate 1 is connected to the base via screws, the threaded sleeve is connected to the side plate 1 via a slot, and the screw rod is connected to the threaded sleeve via threads.
[0008] By adopting the above technical solution, the screw rod is rotated so that it can move under the action of the threaded sleeve.
[0009] Furthermore, the movable plate is rotatably connected to the screw rod, and the handle is connected to the screw rod via a screw.
[0010] By adopting the above technical solution, the handle is rotated so that the handle drives the movable plate to move in the sliding groove through the screw rod.
[0011] Furthermore, the slide groove is formed on the base, the guide block is connected to the movable plate via screws, the guide block is slidably connected to the slide groove, and the guide wheel is rotatably connected to the guide block.
[0012] By adopting the above technical solution, during the movement of the movable plate, the guide block also moves in the slide groove to guide it, and at the same time the guide wheel can convert the original sliding friction into rolling friction, thereby not only reducing the friction between the guide block and the slide groove, but also foreign matter in the slide groove will not hinder the movement of the movable plate, thereby ensuring the smooth movement of the movable plate and the performance of the device.
[0013] Furthermore, the second side plate is connected to the base via screws, the telescopic column is connected to the second side plate via screws, the fixed plate is connected to the telescopic column via bolts, and the spring is connected to the telescopic column via screws.
[0014] By adopting the above technical solution, during the process of fixing the filter, the telescopic column combined with the spring can buffer the clamping force when fixing the filter, thereby protecting the filter.
[0015] Furthermore, the heat dissipation fan is connected to the base via screws, and the operation button is electrically connected to the heat dissipation fan.
[0016] By adopting the above technical solution, during the test process, the cooling fan is operated by the operation button, thereby accelerating the air flow rate near the filter, so that the heat generated during the filter test can be quickly taken away, the filter can be quickly cooled, and the test data of the filter can be prevented from being affected by the high temperature of the filter, thereby improving the practicality of the device.
[0017] Furthermore, the battery pack is connected to the base via screws, and the charging hole is electrically connected to the battery pack.
[0018] By adopting the above technical solution, the battery pack provides the required electric energy for the cooling fan, and the charging hole is convenient for charging the battery pack, thereby ensuring the endurance of the device.
[0019] Furthermore, the concave cavity is formed on the base, the terminal is connected to the concave cavity via a slot, the connecting wire is electrically connected to the terminal, and the connecting wire runs through the base.
[0020] By adopting the above technical solution, during the test process, the lead wire of the filter is connected to the terminal, and the connecting wire is connected to the test equipment, and then the filter is tested by the test equipment.
[0021] Furthermore, the sealing cover is slidably connected to the base, the shifting block is formed on the sealing cover, the cavity is formed on the sealing cover, and the brush is connected to the cavity via screws.
[0022] By adopting the above technical solution, when the device is idle, the sealing cover can seal the terminal to prevent dust, and the sealing cover can be easily opened by the shift block. In the process of moving the sealing cover, the brush can automatically clean the dust attached to the surface of the terminal to prevent poor contact between the filter and the terminal, ensure that the filter can be tested continuously, and improve the functionality of the device.
[0023] Furthermore, the suction cup is connected to the base via bolts.
[0024] By adopting the above technical solution, the suction cup can fix the device on the desktop.
[0025] The specific working principle is: first, fix the device on the desktop through the suction cup, then connect the connecting line to the test equipment, then put the filter on the base, and then shake the handle to make the screw push the movable plate to move under the action of the threaded sleeve. During the movement of the movable plate, the guide block also moves in the slide groove to guide it. At the same time, the guide wheel can convert the original sliding friction into rolling friction, which not only reduces the friction between the guide block and the slide groove, but also foreign matter in the slide groove will not hinder the movement of the movable plate, ensuring the smooth movement of the movable plate. Then, the filter is fixed by the movable plate and the fixed plate. When fixing the filter, the telescopic column combined with the spring can buffer the clamping force when fixing the filter. Then, the filter is protected. After being fixed, the lead of the filter is connected to the terminal, and then the filter is tested through the test equipment. During the test, the cooling fan is operated through the operation button to speed up the air flow rate near the filter, so that it can quickly take away the heat generated during the filter test, and quickly dissipate the heat of the filter to prevent the test data from being affected by the high temperature of the filter. Finally, when the device is idle, the sealing cover can seal the terminal to prevent dust. At the same time, the sealing cover can be easily opened through the shift block, and during the movement of the sealing cover, the brush can automatically clean the dust attached to the surface of the terminal to prevent poor contact between the filter and the terminal, ensure that the filter can be tested continuously, and improve the functionality of the device.
[0026] The beneficial effects of the present invention are:
[0027] 1. By setting the operation button and the cooling fan, during the test, the cooling fan can be operated by operating the button, thereby speeding up the air flow rate near the filter, so that the heat generated during the filter test can be quickly taken away, and the filter can be quickly cooled to prevent the test data from being affected by the high temperature of the filter, thereby improving the practicality of the device;
[0028] 2. By setting up the sealing cover, the shifting block, the cavity and the brush, when the device is idle, the sealing cover can seal the terminal to prevent dust. At the same time, the shifting block can be used to open the sealing cover. During the movement of the sealing cover, the brush can automatically clean the dust attached to the surface of the terminal to prevent poor contact between the filter and the terminal, ensure the continuity of the filter test, and improve the functionality of the device;
[0029] 3. By setting the guide block and the guide wheel, during the movement of the movable plate, the guide block also moves in the slide groove to guide it. At the same time, the guide wheel can convert the original sliding friction into rolling friction, which not only reduces the friction between the guide block and the slide groove, but also foreign matter in the slide groove will not hinder the movement of the movable plate, thereby ensuring the smooth movement of the movable plate and the performance of the device. BRIEF DESCRIPTION OF THE DRAWINGS
[0030] Figure 1 It is a front view of a special test fixture for filter testing according to the present invention;
[0031] Figure 2 It is a main cross-sectional view of a base in a special test fixture for filter testing according to the present invention;
[0032] Figure 3 It is a left sectional view of a sealing cover in a special test fixture for filter testing according to the present invention;
[0033] Figure 4 It is a main cross-sectional view of a side plate 1 in a special test fixture for filter testing described in the present invention.
[0034] The following are the descriptions of the reference numerals:
[0035] 1. Side panel 1; 2. Slide; 3. Threaded sleeve; 4. Screw; 5. Handle; 6. Connecting wire; 7. Dial block; 8. Base; 9. Terminal; 10. Guide block; 11. Operation button; 12. Concave cavity; 13. Sealing cover; 14. Telescopic column; 15. Charging port; 16. Side panel 2; 17. Suction cup; 18. Spring; 19. Fixed plate; 20. Cooling fan; 21. Moving plate; 22. Guide wheel; 23. Battery pack; 24. Cavity; 25. Brush. DETAILED DESCRIPTION
[0036] The present invention will be further described below in conjunction with the accompanying drawings:
[0037] like Figure 1-Figure 4As shown, a special test fixture for filter testing includes a base 8, a side plate 1, a threaded sleeve 3 and a screw 4, the side plate 1 is fixed to one side of the upper end of the base 8, the threaded sleeve 3 is installed on the side plate 1, the screw 4 is installed in the threaded sleeve 3, a movable plate 21 is provided at one end of the screw 4, and a handle 5 is connected to the other end of the screw 4, a slide groove 2 is provided at the upper end of the base 8, a guide block 10 is provided at the bottom end of the movable plate 21, and a guide wheel 22 is installed at the bottom end of the guide block 10, a side plate 2 16 is fixed to the other side of the upper end of the base 8, a telescopic column 14 is installed on one side wall of the side plate 2 16, and a fixed plate 19 is connected to one end of the telescopic column 14, A spring 18 is provided on the outside of the telescopic column 14, a cooling fan 20 is installed on one side of the upper end of the base 8, an operation button 11 is provided on one side wall of the base 8, a charging hole 15 is provided on the other side wall of the base 8, a battery pack 23 is provided on one side of the charging hole 15, a concave cavity 12 is provided on one side of the upper end of the base 8, a terminal 9 is provided in the concave cavity 12, a connecting line 6 is installed on the side wall of the base 8 opposite to the charging hole 15, a sealing cover 13 is provided on the upper end of the concave cavity 12, a shift block 7 is fixed to one side of the sealing upper end, a cavity 24 is provided in the sealing cover 13, a brush 25 is installed in the cavity 24, and a suction cup 17 is installed at the bottom end of the base 8.
[0038] In this embodiment, the side panel 1 is connected to the base 8 by screws, the threaded sleeve 3 is connected to the side panel 1 by a slot, and the screw rod 4 is connected to the threaded sleeve 3 by threads. The screw rod 4 is rotated so that it can move under the action of the threaded sleeve 3.
[0039] In this embodiment, the movable plate 21 is rotationally connected to the screw rod 4, and the handle 5 is connected to the screw rod 4 via a screw. The handle 5 is rotated to drive the movable plate 21 to move in the slide groove 2 via the screw rod 4.
[0040] In this embodiment, the slide groove 2 is formed on the base 8, the guide block 10 is connected to the movable plate 21 by screws, the guide block 10 is slidably connected to the slide groove 2, and the guide wheel 22 is rotatably connected to the guide block 10. During the movement of the movable plate 21, the guide block 10 also moves in the slide groove 2 to guide it. At the same time, the guide wheel 22 can convert the original sliding friction into rolling friction, thereby not only reducing the friction between the guide block 10 and the slide groove 2, but also foreign matter in the slide groove 2 will not hinder the movement of the movable plate 21, thereby ensuring the smooth movement of the movable plate 21 and the performance of the device.
[0041] In this embodiment, the side panel 16 is connected to the base 8 by screws, the telescopic column 14 is connected to the side panel 16 by screws, the fixing plate 19 is connected to the telescopic column 14 by bolts, and the spring 18 is connected to the telescopic column 14 by screws. In the process of fixing the filter, the telescopic column 14 and the spring 18 are combined to buffer the clamping force when fixing the filter, thereby protecting the filter.
[0042] In this embodiment, the heat dissipation fan 20 is connected to the base 8 by screws, and the operation button 11 is electrically connected to the heat dissipation fan 20. During the test, the heat dissipation fan 20 is operated by the operation button 11, thereby accelerating the air flow rate near the filter, so that the heat generated during the filter test can be quickly taken away, the filter can be quickly cooled, and the test data of the filter can be prevented from being affected by the high temperature of the filter, thereby improving the practicality of the device.
[0043] In this embodiment, the battery pack 23 is connected to the base 8 by screws, and the charging port 15 is connected to the battery. The battery pack 23 provides the required electrical energy for the cooling fan 20. The charging port 15 facilitates charging of the battery pack 23, thereby ensuring the endurance of the device.
[0044] In this embodiment, the cavity 12 is formed on the base 8, the terminal 9 is connected to the cavity 12 through a slot, the connecting wire 6 is electrically connected to the terminal 9, and the connecting wire 6 runs through the base 8. During the test, the lead of the filter is connected to the terminal 9, and the connecting wire 6 is connected to the test equipment, and then the filter is tested through the test equipment.
[0045] In this embodiment, the sealing cover 13 is slidably connected to the base 8, and the shift block 7 is formed on the sealing cover 13. When the device is idle, the sealing cover 13 can seal the terminal 9 to prevent dust. At the same time, the sealing cover 13 can be easily opened by the shift block 7. During the movement of the sealing cover 13, the brush 25 can automatically clean the dust attached to the surface of the terminal 9 to prevent poor contact between the filter and the terminal 9, ensure that the filter can be tested continuously, and improve the functionality of the device.
[0046] In this example, the suction cup 17 is connected to the base 8 by bolts, and the suction cup 17 can fix the device on the desktop.
[0047] The specific working principle is as follows: first, fix the device on the desktop through the suction cup 17, then connect the connecting line 6 to the test equipment, then put the filter on the base 8, and then shake the handle 5, so that the screw 4 pushes the movable plate 21 to move under the action of the threaded sleeve 3. During the movement of the movable plate 21, the guide block 10 also moves in the slide groove 2 to guide it. At the same time, the guide wheel 22 can convert the original sliding friction into rolling friction, thereby not only reducing the friction between the guide block 10 and the slide groove 2, but also foreign matter in the slide groove 2 will not hinder the movement of the movable plate 21, ensuring that the movable plate 21 moves smoothly, and then fix the filter through the movable plate 21 and the fixed plate 19. When fixing the filter, the telescopic column 14 and the spring 18 can be combined to clamp the filter when fixing the filter. The force is taken off to buffer and protect the filter. After it is fixed, the lead of the filter is connected to the terminal 9, and then the filter is tested by the test equipment. During the test, the cooling fan 20 is operated by the operation button 11 to accelerate the air flow rate near the filter, so that it can quickly take away the heat generated during the filter test, and quickly dissipate the heat of the filter to prevent the high temperature of the filter from affecting its test data. Finally, when the device is idle, the sealing cover 13 can seal and dustproof the terminal 9. At the same time, the sealing cover 13 can be easily opened by the dial block 7, and during the movement of the sealing cover 13, the brush 25 can automatically clean the dust attached to the surface of the terminal 9 to prevent poor contact between the filter and the terminal 9, ensure that the filter can be tested continuously, and improve the functionality of the device.
[0048] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above embodiments, and the above embodiments and descriptions are only for explaining the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention may have various changes and improvements, and these changes and improvements all fall within the scope of the present invention to be protected.
Claims
1. A special test fixture for filter testing, characterized in that: The invention comprises a base (8), a side plate (1), a threaded sleeve (3) and a screw (4), wherein the side plate (1) is fixed to one side of the upper end of the base (8), the threaded sleeve (3) is installed on the side plate (1), the screw (4) is installed in the threaded sleeve (3), a movable plate (21) is arranged at one end of the screw (4), and a handle (5) is connected to the other end of the screw (4), a slide groove (2) is arranged at the upper end of the base (8), a guide block (10) is arranged at the bottom end of the movable plate (21), and a guide wheel (22) is installed at the bottom end of the guide block (10), a side plate (16) is fixed to the other side of the upper end of the base (8), a telescopic column (14) is installed on one side wall of the side plate (16), and the telescopic column (14) is connected to the other side wall of the side plate (16). ) is connected to a fixing plate (19) at one end, a spring (18) is arranged on the outside of the telescopic column (14), a cooling fan (20) is installed on one side of the upper end of the base (8), an operating button (11) is arranged on one side wall of the base (8), a charging hole (15) is arranged on the other side wall of the base (8), a battery pack (23) is arranged on one side of the charging hole (15), a concave cavity (12) is arranged on one side of the upper end of the base (8), a terminal (9) is arranged in the concave cavity (12), a connecting wire (6) is installed on one side wall of the base (8) opposite to the charging hole (15), a sealing cover (13) is arranged on the upper end of the concave cavity (12), a shifting block (7) is fixed on one side of the upper end of the sealing cover (13), and the sealing cover (13) is provided with a cavity (24), a brush (25) is installed in the cavity (24), a suction cup (17) is installed at the bottom end of the base (8), the side plate (1) is connected to the base (8) by screws, the threaded sleeve (3) is connected to the side plate (1) by a slot, the screw (4) is connected to the threaded sleeve (3) by a thread, the slide groove (2) is formed on the base (8), the guide block (10) is connected to the movable plate (21) by screws, the guide block (10) is slidably connected to the slide groove (2), the guide wheel (22) is rotatably connected to the guide block (10), the side plate (16) is connected to the base (8) by screws, the telescopic column (14) is connected to The second side plate (16) is connected by screws, the fixing plate (19) is connected to the telescopic column (14) by bolts, the spring (18) is connected to the telescopic column (14) by screws, the concave cavity (12) is formed on the base (8), the terminal (9) is connected to the concave cavity (12) by a slot, the connecting wire (6) is electrically connected to the terminal (9), the connecting wire (6) runs through the base (8), the sealing cover (13) is slidably connected to the base (8), the shifting block (7) is formed on the sealing cover (13), the cavity (24) is formed on the sealing cover (13), the brush (25) is connected to the concave cavity (12) by screws, and when the test fixture is idle,The sealing cover (13) seals the terminal (9) to prevent dust, and the sealing cover (13) can be easily opened by the shifting block (7). In addition, during the movement of the sealing cover (13), the brush (25) can automatically clean the dust attached to the surface of the terminal (9), thereby preventing the filter from having poor contact with the terminal (9) and ensuring that the filter can be tested continuously.
2. A special test fixture for filter testing according to claim 1, characterized in that: The movable plate (21) is rotatably connected to the screw rod (4), and the handle (5) is connected to the screw rod (4) via screws.
3. A special test fixture for filter testing according to claim 1, characterized in that: The heat dissipation fan (20) is connected to the base (8) via screws, and the operation button (11) is electrically connected to the heat dissipation fan (20).
4. A special test fixture for filter testing according to claim 1, characterized in that: The battery pack (23) is connected to the base (8) via screws, and the charging hole (15) is electrically connected to the battery pack (23).
5. The special test fixture for filter testing according to claim 1, characterized in that: The suction cup (17) is connected to the base (8) via bolts.
Citation Information
Patent Citations
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