Stepless regulation high-low voltage mutual inductance impedance device
By employing a first adjustment unit and a second adjustment unit in the inductance adjustment device to change the coil position, the high cost and difficulty caused by the large number of coils in the prior art are solved, and the accuracy and precision of inductance adjustment are improved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SUZHOU ANTAI TRANSFORMER
- Filing Date
- 2025-04-25
- Publication Date
- 2026-05-01
AI Technical Summary
Existing inductance fineness adjustment devices require switching between multiple coils, resulting in high manufacturing costs and difficulty in production.
Two methods are used to adjust the inductance: the vertical and horizontal positions of the coil are changed by the first and second adjustment parts respectively, so as to achieve stepless adjustment of the inductance value, reduce the number of coils and avoid using small-sized inductors.
This improved the precision and accuracy of inductor adjustment while reducing manufacturing costs and production difficulty.
Smart Images
Figure CN224190793U_ABST
Abstract
Description
A stepless adjustment device for high and low voltage mutual inductance impedance Technical Field
[0001] This utility model relates to the field of power electronics technology, and in particular to a stepless adjustable high and low voltage mutual inductance impedance device. Background Technology
[0002] A stepless inductance fine adjustment device is a device that can continuously and smoothly adjust the inductance value. Its core lies in achieving precise control of the inductance value in the circuit by dynamically adjusting the inductance parameters.
[0003] In recent years, the accuracy of current testing for electrical products has been increasing, which has led to increasingly finer requirements for the test load. The test load mainly consists of resistors and inductors, and the fineness of the inductor needs to meet increasingly finer requirements.
[0004] Existing technologies require switching between multiple coils to ensure precision. For example, to adjust an inductor to 10Ω~15Ω with a precision of 5%, five inductors of 0.5Ω, 1Ω, 2Ω, 4Ω, and 8Ω are needed to adjust the inductor to 0.5Ω~15.5Ω. As the size becomes smaller, not only does the cost increase, but the manufacturing difficulty also increases exponentially. Summary of the Invention
[0005] Therefore, the technical problem to be solved by this utility model is to overcome the defects of the existing inductance fineness adjustment device, which has a large number of coils and a small size, resulting in high manufacturing cost and difficulty in manufacturing.
[0006] To solve the above-mentioned technical problems, this utility model provides a stepless adjustment device for high and low voltage mutual inductance impedance, comprising:
[0007] The first adjustment part includes a first coil, a lifting plate, and a telescopic rod. The first coil is disposed on the lifting plate, and the end face of the first coil is in contact with the lifting plate. The telescopic rod is disposed at the bottom of the lifting plate along the Z-axis direction, and the telescopic end of the telescopic rod is connected to the lifting plate.
[0008] The second adjustment part includes a second coil, a mounting plate, and a linear module. The linear module is disposed on top of the first coil along the X-axis direction. The second coil is disposed on the mounting plate, and the end face of the second coil is in contact with the mounting plate. The mounting plate is disposed on the slide of the linear module.
[0009] In one embodiment of this utility model, a cabinet is further included, wherein a load-bearing plate and a support plate are provided inside the cabinet, the end of the telescopic rod away from the lifting plate is connected to the load-bearing plate, and the support plate is connected to the linear module.
[0010] In one embodiment of the present invention, a first limit sensor and a second limit sensor are provided on the side wall of the cabinet. The first limit sensor and the second limit sensor are respectively provided on both sides of the lifting plate. The first limit sensor is located on the top of the second limit sensor. A first limit plate and a second limit plate cooperating with the first limit sensor and the second limit sensor are respectively provided on both sides of the lifting plate.
[0011] In one embodiment of this utility model, a third limit sensor is provided at both ends of the linear module, and a third limit plate is provided on both sides of the mounting plate to cooperate with the third limit sensor.
[0012] In one embodiment of this utility model, the first coil is detachably connected to the lifting plate.
[0013] In one embodiment of this utility model, adjusting rods are provided on both sides of the mounting plate, a clamping block is provided at one end of the adjusting rod, the clamping block abuts against the second coil, and a handwheel is provided at the end of the adjusting rod away from the second coil.
[0014] In one embodiment of this utility model, the first coil and the second coil are coaxially arranged in the Y-axis direction.
[0015] In one embodiment of this utility model, the lifting plate is arranged parallel to the mounting plate.
[0016] In one embodiment of this utility model, the side wall surface of the cabinet is provided with a plurality of heat dissipation holes.
[0017] In one embodiment of this utility model, the surface of the cabinet is provided with a door panel, and the door panel is provided with tempered glass.
[0018] The above-mentioned technical solution of this utility model has the following advantages compared with the prior art:
[0019] The present invention discloses a stepless adjustment device for high and low voltage mutual inductance impedance. The present invention employs two inductor adjustment methods, which greatly reduces the number of inductors and avoids the use of small-sized inductors. This reduces manufacturing difficulty while ensuring adjustment accuracy. Attached Figure Description
[0020] To make the content of this utility model easier to understand, the present utility model will be further described in detail below with reference to specific embodiments and accompanying drawings.
[0021] Figure 1 is a front view of the internal structure of this utility model;
[0022] Figure 2 is a side view of the internal structure of this utility model;
[0023] Figure 3 is a top view of the mounting plate in Figure 1;
[0024] Figure 4 is a structural front view of the cabinet in Figure 1;
[0025] Figure 5 is a structural side view of the cabinet in Figure 1;
[0026] Explanation of reference numerals in the accompanying drawings: 1. First adjusting part; 2. Second adjusting part; 3. Cabinet; 11. First coil; 12. Lifting plate; 13. Telescopic rod; 14. First limiting plate; 15. Second limiting plate; 16. First limiting sensor; 17. Second limiting sensor; 21. Second coil; 22. Mounting plate; 23. Linear module; 24. Third limiting sensor; 25. Third limiting plate; 26. Adjusting rod; 27. Clamping block; 28. Handwheel; 31. Bearing plate; 32. Support plate; 33. Door panel; 34. Tempered glass; 35. Ventilation hole. Detailed Implementation
[0027] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, so that those skilled in the art can better understand and implement the present invention. However, the embodiments are not intended to limit the present invention.
[0028] Referring to Figures 1-2, this utility model discloses a stepless adjustable high and low voltage mutual inductance impedance device, comprising:
[0029] The first adjustment part 1 includes a first coil 11, a lifting plate 12 and a telescopic rod 13. The first coil 11 is disposed on the lifting plate 12 and the end face of the first coil 11 is in contact with the lifting plate 12. The telescopic rod 13 is disposed at the bottom of the lifting plate 12 along the Z-axis direction and the telescopic end of the telescopic rod 13 is connected to the lifting plate 12.
[0030] The second adjustment part 2 includes a second coil 21, a mounting plate 22, and a linear module 23. The linear module 23 is disposed on the top of the first coil 11 along the X-axis direction. The second coil 21 is disposed on the mounting plate 22, and the end face of the second coil 21 is in contact with the mounting plate 22. The mounting plate 22 is disposed on the slide of the linear module 23.
[0031] The mutual inductance adjustment device of this utility model includes a first coil 11 and a second coil 21, wherein the second coil 21 is disposed on top of the first coil 11. Specifically, the first adjustment unit 1 drives the lifting plate 12 to move via the telescopic rod 13, thereby driving the first coil 11 to rise and fall, changing the distance between the first coil 11 and the second coil 21. When the telescopic rod 13 extends, the first coil 11 moves closer to the second coil 21, and the mutual inductance value between the first coil 11 and the second coil 21 increases; similarly, when the telescopic rod 13 retracts, the first coil 11 moves away from the second coil 21, and the mutual inductance value between the first coil 11 and the second coil 21 decreases. The second adjustment unit 2 drives the second coil 21 to move along the X-axis direction via the linear module 23, changing the horizontal position between the second coil 21 and the first coil 11. In actual operation, the initial position of the second coil 21 is coaxial with that of the first coil 11. When adjustment is needed, the linear module 23 moves the second coil 21 left and right, causing the first coil 11 and the second coil 21 to intersect horizontally. As the horizontal position increases, the mutual inductance between the two coils gradually decreases. Similarly, if a larger inductance value is desired, the horizontal distance between the first coil 11 and the second coil 21 can be reduced, increasing the mutual inductance between the two coils and achieving the target inductance. During actual adjustment, the vertical distance between the two coils can be adjusted first, followed by the horizontal distance, to further improve adjustment accuracy and ensure fine adjustment.
[0032] In this invention, the first adjustment unit 1 increases or decreases the mutual inductance between the two coils by changing the vertical distance between them, thereby achieving continuous adjustment of the inductance fineness; the second adjustment unit 2 increases or decreases the mutual inductance between the two coils by changing the distance between them, thereby achieving continuous adjustment of the inductance fineness. This invention employs two inductance adjustment methods, which greatly reduces the number of inductors and avoids the use of smaller inductors, reducing manufacturing difficulty while ensuring the fineness of adjustment.
[0033] Furthermore, it also includes a cabinet 3, inside which a bearing plate 31 and a support plate 32 are provided. The end of the telescopic rod 13 away from the lifting plate 12 is connected to the bearing plate 31, and the support plate 32 is connected to the linear module 23.
[0034] Specifically, the support plate 31 is located at the bottom of the telescopic rod 13 to provide support for the telescopic rod 13, while the support plate 32 is located at the bottom of the linear module 23 for mounting the linear module 23. In actual installation, in order to ensure the coaxiality and horizontality of the first coil 11 and the second coil 21, the support plate 31, the support plate 32, the lifting plate 12, and the mounting plate 22 are all parallel to each other.
[0035] Furthermore, a first limit sensor 16 and a second limit sensor 17 are provided on the side wall of the cabinet 3. The first limit sensor 16 and the second limit sensor 17 are respectively provided on both sides of the lifting plate 12. The first limit sensor 16 is located on top of the second limit sensor 17. A first limit plate 14 and a second limit plate 15 that cooperate with the first limit sensor 16 and the second limit sensor 17 are respectively provided on both sides of the lifting plate 12.
[0036] Specifically, the first limit sensor 16 is used to limit the highest position of the first coil 11 to avoid a collision, while the second limit sensor 17 limits the lowest position of the first coil 11. Furthermore, a third limit sensor 24 is provided at both ends of the linear module 23, and third limit plates 25, which cooperate with the third limit sensors 24, are provided on both sides of the mounting plate 22. When the linear module 23 moves the mounting plate 22 horizontally, the limit sensors on both sides limit the distance the mounting plate 22 can move. As a preferred embodiment of this invention, the first limit sensor 16, the second limit sensor 17, and the third limit sensor 24 are all photoelectric sensors, which, in conjunction with the first limit plate 14, the second limit plate 15, and the third limit plate 25, achieve signal reception.
[0037] Furthermore, the first coil 11 is detachably connected to the lifting plate 12. Specifically, the first coil 11 and the lifting plate 12 are fixedly connected by bolts to prevent the first coil 11 from shaking during the operation of the lifting plate 12, thereby improving the stability of the first coil 11.
[0038] Further, referring to FIG3, the mounting plate 22 is provided with adjusting rods 26 on both sides, and one end of the adjusting rod 26 is provided with a clamping block 27, which abuts against the second coil 21. The end of the adjusting rod 26 away from the second coil 21 is provided with a handwheel 28.
[0039] Specifically, in actual operation, the linear module 23 drives the second coil 21 to move horizontally, and clamps the second coil 21 with the clamping blocks 27 on both sides to prevent the second coil 21 from detaching from the mounting plate 22 during adjustment, thus affecting the adjustment accuracy. During the installation of the second coil 21, the handwheel 28 is adjusted according to the size of the second coil 21 to make the clamping blocks 27 abut against the coil and clamp the second coil 21.
[0040] Furthermore, the first coil 11 and the second coil 21 are coaxially arranged in the Y-axis direction, and the axis of the first coil 11 and the axis of the second coil 21 are in the same plane, which facilitates subsequent adjustment.
[0041] Furthermore, referring to Figures 4-5, the side wall surface of the cabinet 3 is provided with a plurality of heat dissipation holes 35; the surface of the cabinet 3 is provided with a door panel 33, and the door panel 33 is provided with tempered glass 34.
[0042] Specifically, during actual use, the first coil 11 and the second coil 21 will generate heat, which can be reduced by the heat dissipation holes 35. Secondly, the door panel 33 of the cabinet 3 is equipped with tempered glass 34, which allows external operators to observe the situation inside the cabinet.
[0043] In summary, this utility model introduces a stepless adjustment device for high and low voltage mutual inductance impedance. In this utility model, the first adjustment unit 1 increases or decreases the mutual inductance between the two coils by changing the vertical distance between them, thereby achieving continuous adjustment of the inductance fineness. The second adjustment unit 2 increases or decreases the mutual inductance between the two coils by changing the distance between them, thereby achieving continuous adjustment of the inductance fineness. This utility model adopts two inductance adjustment methods, which greatly reduces the number of inductors and avoids the use of small-sized inductors. This reduces the manufacturing difficulty while ensuring the fineness of the adjustment.
[0044] Obviously, the above embodiments are merely illustrative examples for clear explanation and are not intended to limit the implementation. Those skilled in the art will recognize that other variations or modifications can be made based on the above description. It is neither necessary nor possible to exhaustively list all possible implementations here. However, obvious variations or modifications derived therefrom are still within the protection scope of this invention.
Claims
1. A stepless adjustable high and low voltage mutual inductance impedance device, characterized in that, include: The first adjustment part includes a first coil, a lifting plate, and a telescopic rod. The first coil is disposed on the lifting plate, and the end face of the first coil is in contact with the lifting plate. The telescopic rod is disposed at the bottom of the lifting plate along the Z-axis direction, and the telescopic end of the telescopic rod is connected to the lifting plate. The second adjustment part includes a second coil, a mounting plate, and a linear module. The linear module is disposed on top of the first coil along the X-axis direction. The second coil is disposed on the mounting plate, and the end face of the second coil is in contact with the mounting plate. The mounting plate is disposed on the slide of the linear module.
2. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 1, characterized in that: It also includes a cabinet, inside which a load-bearing plate and a support plate are provided. The end of the telescopic rod away from the lifting plate is connected to the load-bearing plate, and the support plate is connected to the linear module.
3. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 2, characterized in that: The cabinet is provided with a first limit sensor and a second limit sensor on its side wall. The first limit sensor and the second limit sensor are respectively located on both sides of the lifting plate. The first limit sensor is located on top of the second limit sensor. The lifting plate is provided with a first limit plate and a second limit plate on both sides, which cooperate with the first limit sensor and the second limit sensor.
4. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 1, characterized in that: Both ends of the linear module are provided with a third limit sensor, and both sides of the mounting plate are provided with a third limit plate that cooperates with the third limit sensor.
5. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 1, characterized in that: The first coil is detachably connected to the lifting plate.
6. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 1, characterized in that: Adjustment rods are provided on both sides of the mounting plate. A clamp is provided at one end of the adjustment rod, and the clamp abuts against the second coil. A handwheel is provided at the end of the adjustment rod away from the second coil.
7. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 1, characterized in that: The first coil and the second coil are coaxially arranged in the Y-axis direction.
8. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 1, characterized in that: The lifting plate is arranged parallel to the mounting plate.
9. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 2, characterized in that: The side wall surface of the cabinet is provided with multiple heat dissipation holes.
10. The stepless adjustment high and low voltage mutual inductance impedance device according to claim 2, characterized in that: The cabinet has a door panel on its surface, and the door panel is made of tempered glass.