High-voltage high-frequency air core inductor

Abstract

The utility model discloses a high-voltage high-frequency hollow inductor in the technical field of hollow inductor design, which comprises an epoxy framework, winding grooves are arranged on the outer wall of the epoxy framework at equal intervals, the top of the epoxy framework is connected with a first copper bar, and the bottom of the epoxy framework is connected with a second copper bar. Screws are in threaded connection between the first copper bar and the epoxy framework and between the second copper bar and the epoxy framework, first connecting blocks are connected to the two sides of the first copper bar, second connecting blocks are connected to the two sides of the second copper bar, and an electric connector is in threaded connection with an inner cavity of the first connecting block at the right end. Through cooperative arrangement of the first connecting block, the second connecting block, the first screw hole, the electrical interface, the insulating rotating head and the electrical connector, two air core inductors can be conveniently connected in series, the air core inductors are connected into an electric field in series, installation is easy, operation is convenient, huge energy generated during flashover in the electric field can be effectively absorbed, and the service life of the air core inductors is prolonged. Impact on a high-frequency power supply is prevented, and stable operation of equipment is ensured.

Description

Technical Field

[0001] The utility model relates to the technical field of hollow inductor design, in particular to a high-voltage and high-frequency hollow inductor. Background Art

[0002] At present, the high-frequency power supply high-voltage output end of the electrostatic precipitator system is generally connected in series with a damping resistor before being connected to the electric field. Due to the complex working conditions inside the electric field, sometimes the flue gas conditions fluctuate greatly, which will produce a large number of flashover discharges. The energy generated by this flashover will react back to the high-frequency power supply equipment, causing impact and local overvoltage of the transformer, causing damage to the equipment and system. The commonly used damping resistor has a very small inductance under high frequency conditions, so the energy it can absorb and block is relatively small, and its impact resistance is relatively weak. When the equipment is working normally, since the output is DC, the resistance cannot be selected too large, otherwise it will cause severe heating or even burn out. Utility Model Content

[0003] In order to improve the problem that the commonly used damping resistor mentioned above has a very small inductance under high frequency, the energy it can absorb and block is relatively small, and its impact resistance is relatively weak, the utility model provides a high-voltage and high-frequency hollow inductor.

[0004] The utility model provides a high-voltage and high-frequency hollow inductor, which adopts the following technical solutions:

[0005] A high-voltage and high-frequency hollow inductor comprises an epoxy skeleton, wherein the outer wall of the epoxy skeleton is provided with winding grooves at equal intervals, the top of the epoxy skeleton is connected to a first copper bar, the bottom of the epoxy skeleton is connected to a second copper bar, the first copper bar and the second copper bar are respectively threadedly connected to the epoxy skeleton by screws, both sides of the first copper bar are connected to first connecting blocks, both sides of the second copper bar are connected to second connecting blocks, an electrical connector is screwed into the inner cavity of the first connecting block at the right end, a first screw hole is provided at the bottom of the second connecting block at the right end corresponding to the electrical connector, and an electrical interface is provided in the inner cavity of the first screw hole.

[0006] By adopting the above technical solution, when two hollow inductance devices are connected in series, the electrical connector on one of the hollow inductance devices is threadedly connected to the first screw hole on the other hollow inductance device, so that the electrical connector and the electrical interface are electrically connected together to form a series connection. The electric field is connected in series, and the installation is simple and the operation is convenient. The winding work is convenient through the setting of the winding groove. After the high-voltage and high-frequency hollow inductance is wound, the upper and lower end wires are respectively connected to the first copper bar and the second copper bar, which can effectively absorb the huge energy generated during the flashover inside the electric field, prevent its impact on the high-frequency power supply, and ensure the stable operation of the equipment.

[0007] Optionally, a through hole is formed at the center of each of the first copper bar and the second copper bar.

[0008] By adopting the above technical solution, it is convenient to connect the first copper busbar and the second copper busbar to the high-frequency power supply and the electric field high-voltage line respectively.

[0009] Optionally, the top and the bottom of the epoxy skeleton are both provided with second screw holes matching with the screws.

[0010] By adopting the above technical solution, the screw can be screwed into the inner cavity of the second screw hole, thereby facilitating the installation of the first copper bar and the second copper bar on the top and bottom of the epoxy skeleton.

[0011] Optionally, reserved holes are provided on surfaces of the first copper busbar and the second copper busbar.

[0012] By adopting the above technical solution, the screw can be freely inserted into the reserved hole.

[0013] Optionally, an insulating rotating head is connected to the bottom of the electrical connector.

[0014] By adopting the above technical solution, it is convenient for operators to operate safely.

[0015] Optionally, a screw is threadedly connected to the inner cavity of the first connecting block at the left end, a turntable is connected to the bottom of the screw, and a positioning screw hole is opened at the bottom of the second connecting block at the left end corresponding to the screw.

[0016] By adopting the above technical solution, the screw rod is connected to the positioning screw hole on another hollow inductor device by threaded connection, thereby ensuring that the overall structure of the two hollow inductor devices after the series connection has a certain stability.

[0017] In summary, the present invention has at least one of the following beneficial effects:

[0018] (1) Through the coordinated arrangement of the first connecting block, the second connecting block, the first screw hole, the electrical interface, the insulating rotating head and the electrical connector, it is convenient to connect the two hollow inductors in series. By connecting the two hollow inductors in series to the electric field, the installation is simple and the operation is convenient. The huge energy generated by the flashover inside the electric field can be effectively absorbed to prevent the impact on the high-frequency power supply and ensure the stable operation of the equipment.

[0019] (2) By coordinating the first connecting block, the screw rod, the rotating disk, the second connecting block and the positioning screw hole, the screw rod is rotated into the inner cavity of the positioning screw hole, thereby ensuring that the structure has a certain stability after the two hollow inductors are connected in series. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 For the utility model Figure 1 A front view of

[0023] Figure 3 For the utility model Figure 1 Schematic diagram of the structure viewed from above;

[0024] Figure 4 For the utility model Figure 1 Schematic top view of .

[0025] In the figure: 1. first copper busbar; 2. first connecting block; 3. screw; 4. turntable; 5. winding groove; 6. second copper busbar; 7. second connecting block; 8. positioning screw hole; 9. first screw hole; 10. electrical interface; 11. screw; 12. epoxy frame; 13. insulating rotating head; 14. electrical connector; 15. reserved hole; 16. through hole; 17. second screw hole. DETAILED DESCRIPTION

[0026] The following is combined with Figure 1-4 The utility model is described in further detail.

[0027] Please refer to the attached figure in the instruction manual Figure 1 , Figure 2 and Figure 3 The utility model provides an embodiment: a high-voltage and high-frequency hollow inductor, comprising an epoxy skeleton 12, the outer wall of the epoxy skeleton 12 is provided with winding grooves 5 at equal intervals, the top of the epoxy skeleton 12 is connected to the first copper bar 1, the bottom of the epoxy skeleton 12 is connected to the second copper bar 6, and the centers of the first copper bar 1 and the second copper bar 6 are both provided with through holes 16. It is convenient to connect the first copper bar 1 and the second copper bar 6 to the high-frequency power supply and the electric field high-voltage line respectively.

[0028] Please refer to the attached figure in the instruction manual Figure 2 and Figure 4The first copper bar 1 and the second copper bar 6 are respectively threadedly connected with screws 11, and the top and bottom of the epoxy skeleton 12 are provided with second screw holes 17 that match the screws 11. Therefore, the screws 11 can be screwed into the inner cavity of the second screw holes 17, and then the first copper bar 1 and the second copper bar 6 can be conveniently installed on the top and bottom of the epoxy skeleton 12. The surfaces of the first copper bar 1 and the second copper bar 6 are provided with reserved holes 15. Therefore, the screws 11 can be freely inserted into the reserved holes 15.

[0029] Please refer to the attached figure in the instruction manual Figure 2 and Figure 4 , both sides of the first copper bar 1 are connected to the first connection block 2, both sides of the second copper bar 6 are connected to the second connection block 7, the inner cavity of the first connection block 2 at the right end is screwed with an electrical connector 14, and the bottom of the electrical connector 14 is connected to an insulating rotating head 13. It is convenient for operators to operate safely. The bottom of the second connection block 7 at the right end is provided with a first screw hole 9 corresponding to the electrical connector 14, and the inner cavity of the first screw hole 9 is provided with an electrical interface 10.

[0030] Please refer to the attached figure in the instruction manual Figure 2 The inner cavity of the first connecting block 2 at the left end is threaded with a screw rod 3, the bottom of the screw rod 3 is connected to a rotating disk 4, and the bottom of the second connecting block 7 at the left end is provided with a positioning screw hole 8 corresponding to the screw rod 3. The screw rod 3 is connected to the positioning screw hole 8 on another hollow inductor device by threaded connection, so as to ensure that the overall structure of the two hollow inductor devices after the series connection is completed has a certain stability.

[0031] Working principle: When two hollow inductance devices are connected in series, the electrical connector 14 on one of the hollow inductance devices is threadedly connected to the first screw hole 9 on the other hollow inductance device, so that the electrical connector 14 is electrically connected to the electrical interface 10 to form a series connection. The electric field is connected in series, which is simple to install and easy to operate. The winding groove 5 is set to facilitate the winding work. After the high-voltage and high-frequency hollow inductance is wound, the upper and lower end wires are respectively connected to the first copper bar 1 and the second copper bar 6, which can effectively absorb the huge energy generated during the flashover inside the electric field and prevent its impact on the high-frequency power supply, thereby ensuring the stable operation of the equipment. Then, the screw 3 on one of the hollow inductance devices is connected to the positioning screw hole 8 on the other hollow inductance device by threaded connection, thereby ensuring that the overall structure of the two hollow inductance devices after the series connection is completed has a certain stability.

[0032] The above are all preferred embodiments of the present utility model, and are not intended to limit the protection scope of the present utility model. Therefore, any equivalent changes made based on the structure, shape, and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A high-voltage and high-frequency hollow inductor, comprising an epoxy skeleton (12), characterized in that: The outer wall of the epoxy skeleton (12) is provided with winding grooves (5) at equal intervals, the top of the epoxy skeleton (12) is connected to a first copper bar (1), the bottom of the epoxy skeleton (12) is connected to a second copper bar (6), the first copper bar (1) and the second copper bar (6) are respectively threadedly connected to the epoxy skeleton (12) by screws (11), both sides of the first copper bar (1) are connected to first connecting blocks (2), both sides of the second copper bar (6) are connected to second connecting blocks (7), an electrical connector (14) is threadedly connected to the inner cavity of the first connecting block (2) at the right end, a first screw hole (9) is provided at the bottom of the second connecting block (7) at the right end corresponding to the electrical connector (14), and an electrical interface (10) is provided in the inner cavity of the first screw hole (9).

2. The high-voltage and high-frequency hollow inductor according to claim 1, characterized in that: A through hole (16) is provided at the center of each of the first copper busbar (1) and the second copper busbar (6).

3. The high-voltage and high-frequency hollow inductor according to claim 1, characterized in that: The top and bottom of the epoxy skeleton (12) are both provided with second screw holes (17) that match the screws (11).

4. The high-voltage and high-frequency air-core inductor according to claim 1, characterized in that: The surfaces of the first copper busbar (1) and the second copper busbar (6) are both provided with reserved holes (15).

5. The high-voltage and high-frequency air-core inductor according to claim 1, characterized in that: The bottom of the electrical connector (14) is connected to an insulating rotating head (13).

6. The high-voltage and high-frequency air-core inductor according to claim 1, characterized in that: A screw rod (3) is threadedly connected to the inner cavity of the first connecting block (2) at the left end, a rotating disk (4) is connected to the bottom of the screw rod (3), and a positioning screw hole (8) is provided at the bottom of the second connecting block (7) at the left end corresponding to the screw rod (3).

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