An adjustment device for EMC test antenna
By designing an EMC test antenna adjustment device including lifting cylinders and rotating cylinders, the problem of manually debugging the antenna position in the prior art is solved, and the automatic adjustment of the antenna position is realized, and the efficiency of EMC testing is improved.
Patent Information
- Application Number
- CN202411912997.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-24
- Publication Date
- 2025-04-04
AI Technical Summary
In EMC testing of automotive parts, the prior art requires manual debugging of the antenna position, resulting in inefficient testing.
Design an EMC test antenna adjustment device, including lifting cylinders, rotating cylinders, bearing seats and bearings. Through the cooperation of these components, automatic adjustment of antenna height and angle can be achieved.
By automatically adjusting the position of the antenna, the efficiency of EMC testing is improved and the time and labor intensity of manual debugging are reduced.
Smart Images
Figure CN119757801A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of EMC test antennas, and in particular to an adjustment device for an EMC test antenna. Background Art
[0002] EMC testing, also known as electromagnetic compatibility testing, refers to the comprehensive assessment of the interference size and anti-interference ability of electronic products in electromagnetic fields. It is one of the most important indicators of product quality. The purpose of EMC testing is to detect the impact of electromagnetic radiation generated by electrical products on the human body, public power grids, and other normally working electrical products. At present, when automotive parts are subjected to EMC testing, different parts have different requirements for the height and angle of the antenna, and the position of the antenna needs to be manually adjusted, which reduces the test efficiency. Therefore, the technical solution of this application is urgently needed to solve the above problems. Summary of the invention
[0003] The object of the present invention is to provide an adjustment device for an EMC test antenna, which can automatically adjust the position of the antenna and improve the efficiency of the EMC test.
[0004] In order to achieve the above object, the present invention provides an adjustment device for an EMC test antenna, comprising:
[0005] Lifting cylinder;
[0006] A connecting bracket is arranged on the top of the lifting cylinder, and the connecting bracket is connected to the power output end of the lifting cylinder;
[0007] A rotating cylinder is mounted on the connecting bracket;
[0008] A bearing seat, mounted on the connecting bracket and arranged opposite to the rotating cylinder; and
[0009] A bearing is installed in the bearing seat, the inner hole of the bearing is used to install an antenna, and one end of the antenna extends out of the bearing and is connected to the power output end of the rotating cylinder.
[0010] In some embodiments, a pressure regulating valve is included, the input end of the pressure regulating valve is connected to the air source, the output end of the pressure regulating valve is connected to the lifting cylinder through a first air pipe, and the output end of the pressure regulating valve is connected to the rotating cylinder through a second air pipe.
[0011] In some embodiments, a first switch valve and a first throttle valve are included, and the first switch valve and the first throttle valve are installed on the first air pipe.
[0012] In some embodiments, a second switch valve and a second throttle valve are included, and the second switch valve and the second throttle valve are installed on the second air pipe.
[0013] In some embodiments, it includes a telescopic cylinder and a cylinder bracket, the telescopic cylinder is installed on the side wall of the bearing seat through the cylinder bracket, the relative position of the bearing seat and the telescopic cylinder has a through hole, and the power output end of the telescopic cylinder extends into the through hole to limit the position of the antenna.
[0014] In some embodiments, it includes a third air pipe, a third switch valve and a third throttle valve installed on the third air pipe, and the output end of the pressure regulating valve is connected to the telescopic cylinder through the third air pipe.
[0015] In some embodiments, it includes a mounting plate and an inclinometer disposed on the mounting plate, and one end of the antenna is connected to the power output end of the rotating cylinder through the mounting plate.
[0016] In some embodiments, the connecting bracket includes a horizontal frame and a vertical frame, the horizontal frame has a first end and a second end, the vertical frame is installed on the first end of the horizontal frame, the power output end of the lifting cylinder is installed under the second end of the horizontal frame, the bearing seat is installed on the second end of the horizontal frame, and the rotating cylinder is installed on the side wall of the vertical frame.
[0017] In some embodiments, the outer wall of the power output end of the lifting cylinder has scale lines.
[0018] In some embodiments, it includes a base and a universal wheel, the base is installed at the bottom of the lifting cylinder, and the universal wheel is installed at the bottom of the base.
[0019] The present invention provides an adjustment device for an EMC test antenna, which has the following beneficial effects compared with the prior art:
[0020] The bearing seat and the rotating cylinder are installed on the lifting cylinder through a connecting bracket. The inner hole of the bearing is used to install the antenna. One end of the antenna extends out of the bearing and is connected to the power output end of the rotating cylinder. The height position of the antenna can be adjusted by the lifting cylinder, and the deflection angle of the antenna can be adjusted by the rotating cylinder, so that the position of the antenna is automatically adjusted, thereby improving the efficiency of the EMC test. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] Figure 1 A schematic diagram of the structure of an adjustment device for an EMC test antenna provided in some embodiments of the present invention.
[0022] In the figure: 1. lifting cylinder; 2. connecting bracket; 3. rotating cylinder; 4. bearing seat; 5. bearing; 6. mounting antenna; 7. pressure regulating valve; 8. first air pipe; 9. second air pipe; 10. first switch valve; 11. second switch valve; 12. telescopic cylinder; 13. cylinder bracket; 14. through hole; 15. third air pipe; 16. third switch valve; 17. pressure regulating valve; 18. angle meter; 19. base; 20. universal wheel; 21. horizontal frame; 22. vertical frame. DETAILED DESCRIPTION
[0023] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments.
[0024] It should be understood that, in the description of the present application, the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. The terms "first" and "second" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated, that is, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In addition, unless otherwise specified, "multiple" means two or more.
[0025] In addition, the technical features involved in the different embodiments of the present application described below can be combined with each other as long as they do not conflict with each other.
[0026] like Figure 1 As shown, the adjustment device of the EMC test antenna provided by the embodiment of the present invention includes a lifting cylinder 1, a connecting bracket 2, a rotating cylinder 3, a bearing seat 4 and a bearing 5. When working, the adjustment device is arranged in the EMC test space, and the height position of the antenna 6 is adjusted by the lifting cylinder 1, and the deflection angle position of the antenna 6 is adjusted by the rotating cylinder 3. In this way, the adjustment device of the present application is configured in the EMC test field, so that the test personnel do not need to enter the EMC test field for adjustment, and can adjust the position of the antenna 6 outside the EMC test field, thereby improving the debugging efficiency.
[0027] The connecting bracket 2 is arranged on the top of the lifting cylinder 1, and the connecting bracket 2 is connected to the power output end of the lifting cylinder 1. The connecting bracket 2 can serve as a carrier for installing the rotating cylinder 3 and the bearing seat 4, and enables the lifting cylinder 1 to synchronously adjust the height position of the rotating cylinder 3 and the bearing seat 4, thereby adjusting the height position of the antenna.
[0028] The rotating cylinder 3 is mounted on the connecting bracket 2. Specifically, the axial direction of the power output end of the rotating cylinder 3 is directed toward the automobile parts to be tested, so that the rotating cylinder 3 drives the antenna 6 to rotate for EMC testing.
[0029] The bearing seat 4 is mounted on the connecting bracket 2 and arranged opposite to the rotating cylinder 3. The bottom of the bearing seat 4 is fixed to the connecting bracket by bolts. Specifically, the axis of the bearing seat 4 coincides with the axis of the power output end of the rotating cylinder 3 to ensure that the rotating cylinder 3 runs smoothly.
[0030] The bearing 5 is installed in the bearing seat 4, and the inner hole of the bearing 5 is used to install the antenna 6. One end of the antenna 6 extends out of the bearing 5 and is connected to the power output end of the rotating cylinder 3. In this way, the rotating cylinder 3 can drive the antenna 6 to rotate in the bearing 5. Exemplarily, the antenna 6 adopts a logarithmic periodic antenna, and a rotating shaft is fixedly installed in the middle of the rear end thereof, and the rotating shaft is installed in the inner hole of the bearing 5, and one end of the rotating shaft is connected to the power output end of the rotating cylinder 3.
[0031] Based on the above structural setting, the height position of the antenna 6 can be adjusted by lifting the lifting cylinder 1, and the deflection angle of the antenna 6 can be adjusted by rotating the rotating cylinder 3, thereby automatically adjusting the position of the antenna 6 and improving the efficiency of the EMC test.
[0032] In some embodiments, the regulating device includes a pressure regulating valve 7, the input end of the pressure regulating valve 7 is connected to the air source, the output end of the pressure regulating valve is connected to the lifting cylinder 1 through the first air pipe 8, and the output end of the pressure regulating valve 7 is connected to the rotating cylinder 3 through the second air pipe 9. In this way, the air pressure and flow of the first air pipe 8 are adjusted by the pressure regulating valve 7 to ensure that the cylinder can work normally and the driving speed and amplitude of the lifting cylinder 1 are within a reasonable range. In addition, a reversing valve is also configured at the connection between the lifting cylinder 1 and the first air pipe 8, and the reversing valve is used to control the rise or fall of the lifting cylinder 1.
[0033] As some implementations, the regulating device includes a first switch valve 10 and a first throttle valve, and the first switch valve 10 and the first throttle valve are installed on the first air pipe 8. In this way, the first switch valve 10 can control the opening or closing of the first air pipe 8 to control the opening or closing of the lifting cylinder 1; the first throttle valve controls the lifting speed of the lifting cylinder 1 by changing the gas flow of the first air pipe 8.
[0034] As some implementations, the regulating device includes a second switch valve 11 and a second throttle valve, and the second switch valve 11 and the second throttle valve are installed on the second air pipe 9. In this way, the second switch valve 11 can control the opening or closing of the second air pipe 9 to control the opening or closing of the rotating cylinder 3; the second throttle valve controls the rotation speed of the rotating cylinder 3 by changing the gas flow of the second air pipe 9.
[0035] In some embodiments, the adjustment device includes a telescopic cylinder 12 and a cylinder bracket 13. The telescopic cylinder 12 is installed on the side wall of the bearing seat 4 through the cylinder bracket 13. The relative position of the bearing seat 4 and the telescopic cylinder 12 has a through hole 14. The power output end of the telescopic cylinder 12 extends into the through hole 14 to limit the position of the antenna 6. It should be noted that the width of the bearing seat 4 along its axial direction is greater than the width of the bearing 5 along its axial direction. Therefore, the bearing 5 is installed in the bearing seat 4 and only occupies part of the space of the mounting hole of the bearing seat 4. The through hole 14 corresponds to the part of the mounting hole of the bearing seat 4 where the bearing 5 is not installed. When the power output end of the telescopic cylinder 12 extends into the through hole 14, it directly abuts against the surface of the rotating shaft connected to the antenna 6, thereby limiting the rotation position of the antenna 6. In order to increase the friction force, a brake pad is configured at the power output end of the telescopic cylinder 12, and a friction ring is configured at the corresponding position of the rotating shaft. The brake pad abuts against the outer periphery of the friction ring to achieve the effect of limiting.
[0036] As some implementations, the regulating device includes a third air pipe 15, a third switch valve 16 installed on the third air pipe 15, and a third throttle valve, and the output end of the pressure regulating valve 7 is connected to the telescopic cylinder 12 through the third air pipe 15. In this way, the third switch valve 16 can control the opening or closing of the third air pipe 15 to control the opening or closing of the telescopic cylinder 12; the third throttle valve controls the rotation speed of the telescopic cylinder 12 by changing the gas flow of the third air pipe 15.
[0037] In some embodiments, the adjustment device includes a mounting plate 17 and an inclinometer 18 disposed on the mounting plate 17, and one end of the antenna 6 is connected to the power output end of the rotating cylinder 3 through the mounting plate 17. Specifically, the rotating shaft connected to the antenna 6 is connected to one side of the mounting plate 17, and the power output end of the rotating cylinder 3 is connected to the other side of the mounting plate 17, so that the rotating cylinder 3 drives the antenna 6 to rotate through the mounting plate 17. The rotation angle of the antenna 6 can be measured by the inclinometer 18.
[0038] In some embodiments, the connecting bracket 2 includes a horizontal frame 21 and a vertical frame 22, the horizontal frame 21 has a first end and a second end, the vertical frame 22 is installed on the first end of the horizontal frame 21, the power output end of the lifting cylinder 1 is installed under the second end of the horizontal frame 21, the bearing seat 4 is installed on the second end of the horizontal frame 21, and the rotating cylinder 3 is installed on the side wall of the vertical frame 22. By providing the vertical frame 22, the rotating cylinder 3 has an installation space to be arranged relative to the bearing seat 4, making the structure more compact.
[0039] In some embodiments, the outer wall of the power output end of the lifting cylinder 1 has scale lines, through which the lifting dimension of the lifting cylinder 1 can be observed.
[0040] In some embodiments, the adjustment device includes a base 19 and a universal wheel 20, the base 19 is installed at the bottom of the lifting cylinder 1, and the universal wheel 20 is installed at the bottom of the base 19. In this way, the base 19 can be moved by the universal wheel 20, which is convenient for position adjustment. It should be noted that the first air pipe 8, the second air pipe 9 and the third air pipe 15 all have a reserved length to avoid structural damage during movement.
[0041] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and substitutions can be made without departing from the technical principles of the present invention. These improvements and substitutions should also be regarded as the scope of protection of the present invention.
Claims
1. An adjustment device for an EMC test antenna, characterized in that: include: Lifting cylinder; A connecting bracket is arranged on the top of the lifting cylinder, and the connecting bracket is connected to the power output end of the lifting cylinder; A rotating cylinder is mounted on the connecting bracket; A bearing seat, mounted on the connecting bracket and arranged opposite to the rotating cylinder; as well as A bearing is installed in the bearing seat, the inner hole of the bearing is used to install an antenna, and one end of the antenna extends out of the bearing and is connected to the power output end of the rotating cylinder.
2. The adjustment device for the EMC test antenna according to claim 1, characterized in that: It comprises a pressure regulating valve, the input end of the pressure regulating valve is connected to the air source, the output end of the pressure regulating valve is connected to the lifting cylinder through a first air pipe, and the output end of the pressure regulating valve is connected to the rotating cylinder through a second air pipe.
3. The adjustment device for the EMC test antenna according to claim 2, characterized in that: It includes a first switch valve and a first throttle valve, wherein the first switch valve and the first throttle valve are installed on the first air pipe.
4. The adjustment device for the EMC test antenna according to claim 2, characterized in that: It comprises a second switch valve and a second throttle valve, wherein the second switch valve and the second throttle valve are installed on the second air pipe.
5. The adjustment device for the EMC test antenna according to claim 2, characterized in that: It comprises a telescopic cylinder and a cylinder bracket, wherein the telescopic cylinder is mounted on the side wall of the bearing seat through the cylinder bracket, a through hole is provided at the relative position between the bearing seat and the telescopic cylinder, and the power output end of the telescopic cylinder extends into the through hole to limit the position of the antenna.
6. The adjustment device for the EMC test antenna according to claim 5, characterized in that: It comprises a third air pipe, a third switch valve and a third throttle valve installed on the third air pipe, and the output end of the pressure regulating valve is connected with the telescopic cylinder through the third air pipe.
7. The adjustment device for the EMC test antenna according to claim 1, characterized in that: It comprises a mounting plate and an inclinometer arranged on the mounting plate, and one end of the antenna is connected to the power output end of the rotating cylinder through the mounting plate.
8. The adjustment device for the EMC test antenna according to claim 1, characterized in that: The connecting bracket includes a horizontal frame and a vertical frame, the horizontal frame has a first end and a second end, the vertical frame is installed on the first end of the horizontal frame, the power output end of the lifting cylinder is installed under the second end of the horizontal frame, the bearing seat is installed on the second end of the horizontal frame, and the rotating cylinder is installed on the side wall of the vertical frame.
9. The adjustment device for the EMC test antenna according to claim 1, characterized in that: The outer wall of the power output end of the lifting cylinder is provided with scale lines.
10. The adjustment device for an EMC test antenna according to any one of claims 1 to 9, characterized in that: It comprises a base and a universal wheel, wherein the base is installed at the bottom of the lifting cylinder, and the universal wheel is installed at the bottom of the base.