Variable inductor with continuously adjustable inductance

Abstract

The utility model discloses a variable inductor with continuously adjustable inductance, and relates to the technical field of inductors. The two sides of the top of the base are provided with a first motor and a second motor respectively, the top of the base is connected with two frameworks, an induction coil is connected between the two frameworks, one side of one framework is connected with a first rotating disc, and one side of the other framework is connected with a second rotating disc. By arranging the lead screw, the threaded sleeve and the outer iron core, the lead screw is driven to rotate through the output end of the second motor, the threaded sleeve drives the third supporting barrel to move towards the second supporting barrel through guiding of the guide rod, the distance between the third supporting barrel and the second supporting barrel is changed, and the amplitude of opening the outer iron core by the connecting rod is controlled; and the distance between the outer iron core and the induction coil is further controlled, so that the inductance value of the induction coil is changed by changing the relative position of the outer iron core and the induction coil.

Description

Technical Field

[0001] This utility model relates to the field of inductor technology, specifically to a variable inductor with continuously adjustable inductance. Background Technology

[0002] An inductor is a component that can convert electrical energy into magnetic energy and store it. The structure of an inductor is similar to that of a transformer, but it has only one winding. An inductor has a certain inductance, which only impedes changes in current. If there is no current flowing through the inductor, it will try to impede the current from flowing through it when the circuit is closed; if there is current flowing through the inductor, it will try to maintain the current when the circuit is open.

[0003] A search revealed a continuously adjustable variable inductor with application number 202022462869.1. This device uses a control mechanism located on both sides of a circular fixed plate. The output shaft of a servo motor drives fixed rods on both sides of the fixed plate via bearings, causing the variable inductor body to rotate. An interference module located at the bottom of the fixed rod on the first fixed plate controls the inductance of the variable inductor body within a certain frequency range. However, when adjusting the inductance, the structure and position of the iron core remain fixed, resulting in a fixed inductance value between the iron core and the winding. The inductance can only be changed through an external interference module, and these interference modules can also interfere with each other, making the inductance value uncontrollable during adjustment. Utility Model Content

[0004] Therefore, the purpose of this utility model is to provide a variable inductor with continuously adjustable inductance to solve the technical problems in the background art mentioned above.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a variable inductor with continuously adjustable inductance, comprising a base, a first motor and a second motor respectively provided on both sides of the top of the base, two frames connected to the top of the base, an induction coil connected between the two frames, a first turntable connected to one side of one frame, a second turntable connected to one side of the other frame, and a central iron core connected between the first turntable and the second turntable, one side of the first turntable connected to the output end of the first motor, and a fixed rod connected to the other side of the first turntable, a first support cylinder and a second support cylinder mounted on the outer surface of the fixed rod, a lead screw connected to the output end of the second motor, a threaded sleeve connected to the outer surface of the lead screw, a guide rod fixed to one side of the threaded sleeve, and a third support cylinder connected to one side of the outer surface of the threaded sleeve, with an outer iron core connected to the outer surfaces of the first support cylinder, the second support cylinder and the third support cylinder via connecting rods.

[0006] Furthermore, both the first and second turntables are rotatably connected to the frame.

[0007] By adopting the above technical solution, when working, the staff starts the first motor, and the output of the first motor drives the first turntable to rotate, which in turn drives the central iron core to rotate. In conjunction with the induction coil, electromagnetic induction is generated, so that the inductance is maintained and controlled within a constant range.

[0008] Furthermore, the third support cylinder is rotatably connected to the threaded sleeve.

[0009] By adopting the above technical solution, the cross-section of the threaded sleeve is inverted "convex" shape. When the sensitivity needs to be adjusted, the operator starts the second motor. The output end of the second motor drives the lead screw to rotate. Guided by the guide rod, the lead screw drives the threaded sleeve to move, so that the third support cylinder cooperates with the first support cylinder and the second support cylinder to lift the outer iron core, thereby reducing the distance between the outer iron core and the induction coil, thus achieving the purpose of adjusting the sensitivity.

[0010] Furthermore, a groove is formed on the outer surface of the central iron core, and the outer iron core is movably connected to the groove.

[0011] By adopting the above technical solution, the outer iron core is adapted to the sliding groove, and the magnitude of the coil inductance is changed by controlling the relative position between the outer iron core and the induction coil, thereby achieving the purpose of adjusting the inductance.

[0012] Furthermore, the outer iron core is provided in four groups, and the four groups of outer iron cores are distributed in a ring array.

[0013] By adopting the above technical solution, by setting four sets of outer iron cores, and by changing the distance between the outer iron cores and the induction coil, the inductance can be adjusted. By setting them in a ring array, the electromagnetic induction is more balanced and there will be no large-scale fluctuations.

[0014] Furthermore, the connecting rod is rotatably connected to the first support cylinder, the second support cylinder, the third support cylinder, and the outer iron core, respectively.

[0015] By adopting the above technical solution, when adjusting the inductance, the threaded sleeve drives the third support cylinder to move under the drive of the lead screw, so that the distance between the third threaded block and the second threaded block becomes smaller, thereby causing the connecting rod to support the outer iron core and separate it from the central iron core, thus achieving the purpose of changing the relative position of the outer iron core.

[0016] Furthermore, the skeleton is made of ceramic material.

[0017] By adopting the above technical solution, the induction coil is supported by the frame. The ceramic material has high insulation and low dielectric loss, which can improve the quality factor of the inductor, enhance the energy storage capacity and stability, and enable the inductor to remain stable in harsh environments, thereby improving the reliability and lifespan of the product.

[0018] Furthermore, one of the skeletons is connected to a limiting block on one side, and the limiting block is slidably connected to the guide rod.

[0019] By adopting the above technical solution, the threaded sleeve moves the guide rod under the drive of the lead screw. One end of the guide rod is always inside the limiting block. The threaded sleeve is guided and limited by the cooperation between the guide rod and the limiting block, so as to prevent the threaded sleeve from rotating and thus affecting the practicality of the device.

[0020] Furthermore, there are three sets of connecting rods, located on the outer surfaces of the first support cylinder, the second support cylinder, and the third support cylinder, respectively. Each set contains four connecting rods, and the four connecting rods are distributed in a circular array.

[0021] By adopting the above technical solution, the connecting rods on the first support cylinder and the second support cylinder are arranged in parallel, and the connecting rods on the third support cylinder and the first support cylinder are arranged in mirror image. Under the drive of the screw, the threaded sleeve drives the third support cylinder to move, so that the connecting rod supports the outer iron core. By adjusting the distance between the third support cylinder and the first support cylinder, the height at which the connecting rod supports the outer iron core can be controlled.

[0022] Furthermore, several support rods are connected between the two skeletons, and the support rods are distributed in a ring array.

[0023] By adopting the above technical solution, the induction coil is supported by a support rod, which prevents the induction coil from deforming under its own weight and gravity, thereby affecting the normal operation of the inductor.

[0024] In summary, the present invention has the following main advantages:

[0025] 1. This utility model is equipped with a lead screw, a threaded sleeve, and an outer iron core. The lead screw is driven to rotate by the output end of the second motor. Guided by the guide rod, the threaded sleeve drives the third support cylinder to move towards the second support cylinder, changing the distance between the third support cylinder and the second support cylinder. This controls the extent to which the connecting rod expands the outer iron core, thereby controlling the distance between the outer iron core and the induction coil. By changing the relative position of the outer iron core and the induction coil, the inductance of the induction coil is changed.

[0026] 2. This utility model provides a frame and support rod to support the induction coil, thereby preventing the induction coil from deforming under its own weight and gravity, which would affect the normal operation of the inductor. Attached Figure Description

[0027] Figure 1 This is a schematic diagram of the structure of this utility model;

[0028] Figure 2This is a schematic diagram of the cross-sectional structure of the central iron core of this utility model;

[0029] Figure 3 For the present utility model Figure 2 Enlarged structural diagram at point A in the middle;

[0030] Figure 4 This is a schematic diagram of the outer iron core structure of this utility model;

[0031] Figure 5 This is a schematic diagram of the cross-sectional structure of the outer iron core of this utility model;

[0032] Figure 6 This is a schematic diagram of the cross-sectional structure of the threaded sleeve of this utility model.

[0033] In the diagram: 1. Base; 2. Frame; 3. First turntable; 4. Central iron core; 5. Second turntable; 6. Induction coil; 7. First motor; 8. Fixing rod; 9. First support cylinder; 10. Connecting rod; 11. Second support cylinder; 12. Second motor; 13. Lead screw; 14. Threaded sleeve; 15. Third support cylinder; 16. Outer iron core; 17. Guide rod; 18. Support rod; 19. Limiting block. Detailed Implementation

[0034] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0035] The embodiments of this utility model will be described below based on its overall structure.

[0036] Example 1: A variable inductor with continuously adjustable inductance, such as... Figures 1-6As shown, the system includes a base 1, with a first motor 7 and a second motor 12 respectively mounted on the top two sides of the base 1. Two frames 2 are connected to the top of the base 1, and an induction coil 6 is connected between the two frames 2. One side of one frame 2 is connected to a first turntable 3, and the other side of the other frame 2 is connected to a second turntable 5. A central iron core 4 connects the first turntable 3 and the second turntable 5. One side of the first turntable 3 is connected to the output end of the first motor 7, and the other side of the first turntable 3 is connected to a fixing rod 8. A first support cylinder 9 and a second support cylinder 11 are mounted on the outer surface of the fixing rod 8. A lead screw 13 is connected to the output end of the second motor 12. 3. A threaded sleeve 14 is connected to the outer surface. A guide rod 17 is fixed to one side of the threaded sleeve 14. A third support cylinder 15 is connected to one side of the outer surface of the threaded sleeve 14. The outer surfaces of the first support cylinder 9, the second support cylinder 11 and the third support cylinder 15 are all connected to the outer iron core 16 through the connecting rod 10. The first turntable 3 and the second turntable 5 are rotatably connected to the frame 2. When working, the operator starts the first motor 7. The output end of the first motor 7 drives the first turntable 3 to rotate, so that the first turntable 3 drives the central iron core 4 to rotate, and cooperates with the induction coil 6 to generate an electromagnetic induction phenomenon, so that the inductance is maintained and controlled within a constant range.

[0037] See Figure 2 , Figure 3 , Figure 5 and Figure 6 In the above embodiment, the third support cylinder 15 is rotatably connected to the threaded sleeve 14. The cross-section of the threaded sleeve 14 is an inverted "convex" shape. When the sensitivity needs to be adjusted, the operator starts the second motor 12. The output end of the second motor 12 drives the lead screw 13 to rotate. Guided by the guide rod 17, the lead screw 13 drives the threaded sleeve 14 to move, so that the third support cylinder 15 cooperates with the first support cylinder 9 and the second support cylinder 11 to lift the outer iron core 16, thereby reducing the distance between the outer iron core 16 and the induction coil 6, thereby achieving the purpose of adjusting the sensitivity.

[0038] See Figure 4 and Figure 5 In the above embodiment, a groove is provided on the outer surface of the central iron core 4, and the outer iron core 16 is movably connected to the groove. The outer iron core 16 is adapted to the groove. By controlling the relative position between the outer iron core 16 and the induction coil 6, the magnitude of the inductance of the coil 6 is changed, thereby achieving the purpose of adjusting the inductance.

[0039] See Figure 1 , Figure 2 , Figure 4 and Figure 5In the above embodiment, there are four sets of outer iron cores 16, and the four sets of outer iron cores 16 are arranged in a ring array. By setting four sets of outer iron cores 16, the inductance can be adjusted by changing the distance between the outer iron cores 16 and the induction coil 6. The ring array arrangement makes the electromagnetic induction more balanced and prevents large-scale fluctuations.

[0040] See Figure 2 , Figure 5 and Figure 6 In the above embodiment, the connecting rod 10 is rotatably connected to the first support cylinder 9, the second support cylinder 11, the third support cylinder 15 and the outer iron core 16 respectively. When the inductance is adjusted, the threaded sleeve 14 drives the third support cylinder 15 to move under the drive of the lead screw 13, so that the distance between the third threaded block and the second threaded block becomes smaller, thereby allowing the connecting rod 10 to support the outer iron core 16 and separate it from the central iron core 4, thereby changing the relative position of the outer iron core 16.

[0041] See Figure 1 , Figure 2 , Figure 4 and Figure 5 In the above embodiment, the frame 2 is made of ceramic material and supports the induction coil 6. The ceramic material has high insulation and low dielectric loss, which can improve the quality factor of the inductor, enhance the energy storage capacity and stability, and enable the inductor to remain stable in harsh environments, thereby improving the reliability and lifespan of the product.

[0042] See Figure 2 , Figure 4 , Figure 5 and Figure 6 In the above embodiment, one of the skeletons 2 is connected to a limiting block 19 on one side, and the limiting block 19 is slidably connected to the guide rod 17. Under the drive of the lead screw 13, the threaded sleeve 14 drives the guide rod 17 to move. One end of the guide rod 17 is always located inside the limiting block 19. The threaded sleeve 14 is guided and limited by the cooperation between the guide rod 17 and the limiting block 19, so as to prevent the threaded sleeve 14 from rotating and thus affecting the practicality of the device.

[0043] See Figure 2 , Figure 3 , Figure 5 and Figure 6In the above embodiment, there are three sets of connecting rods 10, located on the outer surfaces of the first support cylinder 9, the second support cylinder 11, and the third support cylinder 15, respectively. Each set of connecting rods 10 consists of four rods, and the four connecting rods 10 are arranged in a circular array. The connecting rods 10 on the first support cylinder 9 and the second support cylinder 11 are arranged parallel to each other, and the connecting rods 10 on the third support cylinder 15 are mirror images of the connecting rods 10 on the first support cylinder 9. Driven by the lead screw 13, the threaded sleeve 14 drives the third support cylinder 15 to move, so that the connecting rods 10 support the outer iron core 16. By adjusting the distance between the third support cylinder 15 and the first support cylinder 9, the height to which the connecting rods 10 support the outer iron core 16 can be controlled.

[0044] Example 2: To avoid deformation of the induction coil 6, Example 2 is an improvement on Example 1. (See attached document.) Figure 1 and Figure 2 Several support rods 18 are connected between the two frames 2, and the support rods 18 are arranged in a ring array. The support rods 18 support the induction coil 6 to prevent the induction coil 6 from deforming under its own weight and gravity, thereby affecting the normal operation of the inductor.

[0045] The implementation principle of this utility model is as follows: During operation, the operator starts the first motor 7, and the output end of the first motor 7 drives the first turntable 3 to rotate, which in turn drives the central iron core 4 to rotate. This, in conjunction with the induction coil 6, generates an electromagnetic induction phenomenon, thereby maintaining the inductance of the variable inductor within a certain range. At this time, the central iron core 4 drives the outer iron core 16 to rotate, which in turn causes the connecting rod 10 to drive the third support cylinder 15 to rotate on the threaded sleeve 14. When it is necessary to adjust the inductance, the second motor 12 is started, and the output end of the second motor 12 drives the lead screw 13 to rotate. Guided and limited by the guide rod 17, the lead screw 13 drives the threaded sleeve 14 to move towards the second support cylinder 11. Under the drive of the threaded sleeve 14, the third support cylinder 15 cooperates with the second support cylinder 11 and the first support cylinder 9, so that the connecting rod 10 supports the outer iron core 16, changing the relative position of the outer iron core 16 and the induction coil 6 to change the magnitude of the inductance of the induction coil 6.

[0046] Although embodiments of the present invention have been shown and described, these specific embodiments are merely explanations of the present invention and are not intended to limit the invention. The specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. After reading this specification, those skilled in the art may make modifications, substitutions, and variations to the embodiments as needed without departing from the principles and spirit of the present invention, provided that such modifications, substitutions, and variations are within the scope of the claims of the present invention and are protected by patent law.

Claims

1. A variable inductor with continuously adjustable inductance, comprising a base (1), characterized in that: The base (1) has a first motor (7) and a second motor (12) on its top sides respectively. The top of the base (1) is connected to two frames (2), and an induction coil (6) is connected between the two frames (2). One side of one frame (2) is connected to a first turntable (3), and the other side of the frame (2) is connected to a second turntable (5). A central iron core (4) is connected between the first turntable (3) and the second turntable (5). One side of the first turntable (3) is connected to the output end of the first motor (7), and the other side of the first turntable (3) is connected to... There is a fixed rod (8), and a first support cylinder (9) and a second support cylinder (11) are installed on the outer surface of the fixed rod (8). The output end of the second motor (12) is connected to a lead screw (13). A threaded sleeve (14) is connected to the outer surface of the lead screw (13). A guide rod (17) is fixed on one side of the threaded sleeve (14). A third support cylinder (15) is connected to one side of the outer surface of the threaded sleeve (14). The outer surfaces of the first support cylinder (9), the second support cylinder (11) and the third support cylinder (15) are all connected to an outer iron core (16) through a connecting rod (10).

2. A continuously variable inductor according to claim 1, wherein: The first turntable (3) and the second turntable (5) are both rotatably connected to the frame (2).

3. A variable inductor with continuously adjustable inductance according to claim 1, characterized in that: The third support cylinder (15) is rotatably connected to the threaded sleeve (14).

4. A variable inductor with continuously adjustable inductance according to claim 1, characterized in that: The outer surface of the central iron core (4) is provided with a sliding groove, and the outer iron core (16) is movably connected to the sliding groove.

5. A continuously adjustable inductor according to claim 1, wherein: The outer iron core (16) is provided in four groups, and the four groups of outer iron cores (16) are distributed in a ring array.

6. A continuously adjustable inductor according to claim 1, wherein: The connecting rod (10) is rotatably connected to the first support cylinder (9), the second support cylinder (11), the third support cylinder (15) and the outer iron core (16).

7. A variable inductor with continuously adjustable inductance according to claim 1, characterized in that: The skeleton (2) is made of ceramic material.

8. A continuously variable inductor according to claim 1, wherein: One of the skeletons (2) is connected to a limiting block (19) on one side, and the limiting block (19) is slidably connected to the guide rod (17).

9. A continuously adjustable inductor according to claim 1, wherein: The connecting rods (10) are provided in three groups, located on the outer surfaces of the first support cylinder (9), the second support cylinder (11) and the third support cylinder (15) respectively. Each group of connecting rods (10) has four rods, and the four connecting rods (10) are distributed in a ring array.

10. A variable inductor with continuously adjustable inductance according to claim 1, characterized in that: Several support rods (18) are connected between the two skeletons (2), and the several support rods (18) are distributed in a ring array.

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