JPH10223059A - High frequency power source wiring - Google Patents

Abstract

PROBLEM TO BE SOLVED: To restrain a voltage drop in reactance low by respectively subdividing going and returning cables into two cables, and arranging the subdivided going and returning cable in closest vicinity to each other. SOLUTION: Subdivided going cables 2a and 2a and returning cables 2b and 2b are arranged in closest vicinity to each other, and in detail, the cables 2a-2a and the cable 2b-2b are crossed with each other, and are also arranged in closest vicinity to each other so that different cables are adjacent to each other. An inductance of cable wiring is calculated by a specific expression when magnetic energy stored in a wiring part is known since the cables are respectively subdivided into two pieces. Since the cables are arranged so as to be respectively subdivided into two pieces, mutually inverse directional electric currents are arranged in closest vicinity to each other, and magnetic vector potentials made by the respective subdivided cables offset each other, and the magnetic energy sharply reduces, and as a result, an inductance of the wiring sharply reduces.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a high-frequency power supply wiring capable of supplying an electric current to a load located at a long distance with a low power supply voltage by reducing the inductance of a reciprocating conductor cable.

[0002]

2. Description of the Related Art Conventionally, when a current is supplied to a load using a high-frequency current, an expensive device has been required as a high-frequency power supply. However, recent advances in power electronics technology have made it possible to supply a high-frequency current to a load using an inverter device, making the device inexpensive and widely used.

[0003]

However, when a high-frequency current flows from the power supply of the inverter device to the load using the reciprocating conductor cable, the reactance voltage drop due to the inductance generated in the reciprocating conductor cable due to the high frequency increases. For this reason, there has been a problem that it is difficult to supply a current to a load that is separated by a long distance with a low power supply voltage.

The present invention solves the problems of the conventional high-frequency power supply, and reduces the inductance of the reciprocating conductor cable, thereby making it possible to supply a current to a load at a long distance with a low power supply voltage. An object is to provide a power supply wiring.

[0005]

In order to achieve the above object, the high-frequency power supply wiring of the present invention is a high-frequency power supply wiring using a reciprocating conductor cable, in which the forward and return cables are each subdivided into two cables. It is characterized in that the divided outgoing and returning cables are arranged close to each other.

According to the present invention having the above-described structure, the inductance of the entire wiring is reduced by arranging the forward and return cables divided into two parts in close proximity to each other.

[0007]

FIG. 1 shows an embodiment of a high-frequency power supply wiring according to the present invention. Reference numeral 1 denotes a reciprocating conductor cable used when a high-frequency current flows from the power supply of the inverter device to the load. As shown in FIG. 2, the reciprocating conductor cable 1 is configured by arranging an outgoing cable 1a and a returning cable 1b in parallel with each other. It is formed. Note that high-frequency currents in opposite directions flow through the two cables 1a and 1b.

In the high-frequency power supply wiring A of the present invention, both the outgoing cable 1a and the return cable 1b are connected to the outgoing and returning cables 1a, 1b, as shown in FIG.
1b are respectively connected to two cables 2a, 2a and 2
b and 2b, and the subdivided outgoing cable 2a and the subdivided return cable 2b are further subdivided as shown in FIG.
a, 2a, and the return cables 2b, 2b are arranged in close proximity to each other, more specifically, the cables 2a-2a and the cables 2b-2b are intersected and arranged in close proximity so that different cables are adjacent to each other. .

The inductance of the cable wiring is divided into two parts, and the magnetic energy stored in the wiring part can be calculated from the following equation when the magnetic energy stored in the wiring part is known. (1/2) LI ² = (1/2) ∫Aidv

Here, L is the inductance of the cable wiring, I is the line current of the reciprocating conductor cable, A is the magnetic vector potential created by the current, and i is the current density. In the present invention, the forward and return cables are each divided into two sub-portions, so that currents in opposite directions are disposed immediately adjacent to each other. The magnetic energy provided by is dramatically reduced. As a result, the inductance L of the wiring is drastically reduced.

[0011]

According to the present invention, the forward and return cables are each subdivided into two cables, and the subdivided forward and return cables are arranged close to each other, so that the wiring inductance can be reduced. It is possible to suppress a reactance voltage drop due to inductance to a high-frequency current, and to supply a high-frequency current to a load separated by a long distance with a low power supply voltage.

[Brief description of the drawings]

FIG. 1 is a sectional view of an embodiment of a high-frequency power supply wiring according to the present invention.

FIG. 2 is an explanatory diagram showing a state in which each of outgoing and returning cables is subdivided.

[Explanation of symbols]

 1 Reciprocating conductor cable 1a Outgoing cable 1b Return cable 2a Subdivided outgoing cable 2b Subdivided return cable A High frequency power supply wiring

Claims (1)

[Claims] In a high-frequency power supply wiring using a reciprocating conductor cable, an outgoing and returning cable is divided into two cables, respectively, and the divided outgoing and returning cables are arranged in close proximity to each other. Power supply wiring.