CN112582128B - Compact high-voltage large-current electromagnetic repulsion coil - Google Patents

Abstract

The invention discloses a compact high-voltage large-current electromagnetic repulsion coil, which comprises a valve metal disc, wherein a cutting gap is cut on the valve metal disc to form a coil winding, a guide hole is formed in the center of the valve metal disc, the cutting gap is positioned around the guide hole, an inner edge conducting ring is formed between the guide hole and the cutting gap, an outer edge conducting ring is formed between the cutting gap and the outer peripheral surface of the valve metal disc, a ceramic oxide layer and a transition metal layer are sequentially arranged on the surface of the valve metal disc and the inner wall of the cutting gap, and a high-conductivity metal layer is arranged on the transition metal layer in the cutting gap.

Description

A compact high-voltage and high-current electromagnetic repulsion coil

technical field

The invention belongs to the technical field of high-voltage switches, and relates to a compact high-voltage and high-current electromagnetic repulsion coil.

Background technique

In recent years, the electromagnetic repulsion mechanism has been widely used in the field of high-voltage switch technology. As a key component of the repulsion mechanism, its driving coil needs to withstand high voltage and high current impact during the discharge process. Therefore, the coil and its insulating envelope face a greater mechanical shock, and its mechanical and insulating reliability are greatly threatened.

SUMMARY OF THE INVENTION

The purpose of the present invention is to overcome the above-mentioned shortcomings of the prior art, and to provide a compact high-voltage and high-current electromagnetic repulsion coil, which has strong insulating capacity, current-carrying capacity and mechanical strength.

In order to achieve the above object, the compact high-voltage and high-current electromagnetic repulsion coil of the present invention includes a valve metal disc, and the valve metal disc is cut with a cutting slit on the line to form the coil winding. A guide hole is opened at the center position, wherein the cutting slot is located around the guide hole, an inner edge conductive ring is formed between the guide hole and the cutting slot, and an outer edge conductive ring is formed between the cutting slot and the outer peripheral surface of the valve metal disc, A ceramic oxide layer and a transition metal layer are arranged on the surface of the valve metal disc and the inner wall of the cutting slot in sequence from outside to inside, and a metal layer is arranged on the transition metal layer in the cutting slot;

A first sinking groove structure is opened on the inner edge conductive ring, and a first conductive metal connecting piece is arranged in the first sinking groove structure, wherein the first conducting metal connecting piece is connected with one end of the metal layer;

A second sinking groove structure is opened on the outer edge conductive ring, and a second conductive metal connecting piece is arranged in the second sinking groove structure, wherein the second conducting metal connecting piece is connected with the other end of the metal layer.

Both the inner edge conductive ring and the outer edge conductive ring are provided with flexible connection installation holes.

The first conductive metal connector and the metal layer are connected by welding, riveting or screw holes.

The second conductive metal connector and the metal layer are connected by welding, riveting or screw holes.

The melting point of the metal layer is lower than the melting point of the transition metal layer and the ceramic oxide layer.

The cutting slit is in a spiral structure distributed from the inside to the outside.

The present invention has the following beneficial effects:

In the specific operation of the compact high-voltage and high-current electromagnetic repulsion coil of the present invention, a coil winding is formed by setting a cutting slit on the valve metal disc, and then a ceramic oxide layer is arranged in the cutting slit, and at the same time, the ceramic oxide layer is placed on the cutting slit. A metal layer is arranged in the middle to separate and form a parallel coil structure, in which, in addition to the space occupied by the ceramic oxide layer, the volume cost for insulation is minimized, the effective current-carrying volume is increased, and the high voltage and high current are realized. At the same time, the cut metal components are re-consolidated into an overall structure, which fundamentally solves the problem of insufficient mechanical strength of coil windings.

Description of drawings

1 is a cross-sectional view of the present invention;

FIG. 2 is a schematic structural diagram of the present invention.

Among them, 1 is the coil winding, 2 is the ceramic oxide layer, 3 is the transition metal layer, 4 is the metal layer, 5 is the guide hole, 6 is the inner edge conductive ring, 7 is the second sink structure, 8 is the first conductive metal The connecting piece, 9 is the outer edge conductive ring, and 10 is the soft connection mounting hole.

Detailed ways

Below in conjunction with accompanying drawing, the present invention is described in further detail:

Referring to FIG. 1 and FIG. 2 , the compact high-voltage and high-current electromagnetic repulsion coil according to the present invention includes a valve metal disc, and the valve metal disc is cut with a cutting slit on the line to form a coil winding 1 . A guide hole 5 is opened at the center of the disc, wherein the cutting slot is located around the guide hole 5, and an inner edge conductive ring 6 is formed between the guide hole 5 and the cutting slot, and the cutting slot is connected to the outer peripheral surface of the valve metal disc. The outer edge conductive ring 9 is formed between the two, the surface of the valve metal disc and the inner wall of the cutting gap are provided with ceramic oxide layer 2 and transition metal layer 3 sequentially from outside to inside, and the transition metal layer 3 in the cutting gap is provided with The metal layer 4; the inner edge conductive ring 6 is provided with a first sink structure, and the first sink structure is provided with a first conductive metal connector 8, wherein the first conductive metal connector 8 is connected to the metal layer 4 is connected to one end; the outer edge conductive ring 9 is provided with a second sink structure 7, and the second sink structure 7 is provided with a second conductive metal connector, wherein the second conductive metal connector and the metal layer 4 is connected to the other end.

The inner edge conductive ring 6 and the outer edge conductive ring 9 are provided with flexible connection mounting holes 10; the first conductive metal connector 8 and the metal layer 4 are connected by welding, riveting or wire hole screws; The metal connector and the metal layer 4 are connected by welding, riveting or screw holes.

The melting point of the metal layer 4 is lower than the melting point of the transition metal layer 3 and the ceramic oxide layer 2; the cutting gap has a spiral structure.

In use, the external drive unit is connected to the flexible connection mounting hole 10, and the electromagnetic eddy current repulsion can be generated when the current output by the external drive unit flows through the electromagnetic repulsion coil of the present invention.

Claims (5)

1. A compact high-voltage and high-current electromagnetic repulsion coil, characterized in that it comprises a valve metal disc, and the valve metal disc is cut with a cutting slit on the line to form a coil winding (1), and the valve metal disc is A guide hole (5) is opened at the center of the disc, wherein the cutting slit is located around the guide hole (5), and an inner edge conductive ring (6) is formed between the guide hole (5) and the cutting slit, and the cutting slit is connected to the valve resistance. An outer edge conductive ring (9) is formed between the outer peripheral surfaces of the metal disc, and a ceramic oxide layer (2) and a transition metal layer (3) are sequentially arranged on the surface of the valve metal disc and the inner wall of the cutting slit from the outside to the inside. ), the transition metal layer (3) in the cutting gap is provided with a metal layer (4); The inner edge conductive ring (6) is provided with a first sinking groove structure, and a first conductive metal connecting piece (8) is arranged in the first sinking groove structure, wherein the first conducting metal connecting piece (8) is connected to the One end of the metal layer (4) is connected; The outer edge conductive ring (9) is provided with a second sinking groove structure (7), and a second conductive metal connecting piece is arranged in the second sinking groove structure (7), wherein the second conducting metal connecting piece and the metal layer The other end of (4) is connected; The melting point of the metal layer (4) is lower than the melting point of the transition metal layer (3) and the ceramic oxide layer (2). 2 . The compact high-voltage and high-current electromagnetic repulsion coil according to claim 1 , wherein the inner conductive ring ( 6 ) and the outer conductive ring ( 9 ) are provided with flexible connection mounting holes ( 10 ). 3 . 3. The compact high-voltage and high-current electromagnetic repulsion coil according to claim 1, wherein the first conductive metal connector (8) and the metal layer (4) are welded, riveted or screwed connected. 4 . The compact high-voltage and high-current electromagnetic repulsion coil according to claim 1 , wherein the second conductive metal connector and the metal layer ( 4 ) are connected by welding, riveting or wire hole screws. 5 . 5 . The compact high-voltage and high-current electromagnetic repulsion coil according to claim 1 , wherein the cutting slit is in a spiral structure distributed from the inside to the outside. 6 .

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