JPH06165303A - Current collector - Google Patents

Abstract

PURPOSE:To provide a current collector which has a simple structure in which wear powder is suppressed and which has excellent stability of a sliding current collection. CONSTITUTION:A plurality of conductive wires 2 are aligned and fixedly disposed on a surface of a platelike spring piece 1. The piece 1 is formed in a crest shape in a lateral section and in a bow state in a longitudinal direction. The wires 2 are fixed to the bow-shaped swelled surfaces of the piece 1 by brazing, etc.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a current collector slidingly collecting current on a linear conductor, and more particularly to providing a current collector suitable for collecting current of a trolley wire.

[0002]

2. Description of the Related Art Solid brushes made of a copper-based sintered alloy have been exclusively used for collecting currents of trolley wires, especially insulated trolley wires. Such a solid brush required an arm with a spring-loaded pressure mechanism to press and bias it against the trolley conductor.

In such a brush, a complicated supporting and supporting structure is required by a large number of constituent parts, and many factors of failure are included, but there is a limit to the simplification of the structure. In addition, the brush generates a large amount of abrasion powder as it slides on the trolley conductor, which adheres to the sliding surface of the trolley wire conductor and induces brush separation, which causes transmission when used in a signal transmission system. There was a practical problem such as causing an error.

It is an object of the present invention to provide a current collector of this type which has a simplified structure, suppresses wear particles, and is excellent in stability of sliding current collection.

[0005]

One means for achieving the above object is a current collector in which a plurality of conductive wires are fixed and arranged in parallel on the surface of a plate-shaped spring piece.

It is preferable that the plate-shaped spring piece is formed in a bow shape as a whole, and a conductive wire is fixed to the surface that bulges in the bow shape. It is preferable that the wire is formed in a mountain shape or an arc shape when viewed from the surface, and the conductive wire is fixed to the bulging surface.

Further, it is preferable that the conductive wire has a circular cross section or a semicircular cross section with its flat side surface fixed to the plate-shaped spring piece. It is preferable that the plate-shaped spring piece is electrically conductive and is electrically connected to the electrically conductive wire.

As another means for achieving the above object, a wire formed of a conductive spring material is used.
The current collector has a large number of convex portions on the outer surface in the circumferential direction.

FIG. 1 shows a preferred embodiment of a current collector implemented by the first means of the present invention, in which 1 is a plate-shaped spring piece and 2 is a conductive wire.

The plate-shaped spring piece 1 is made of a conductive spring material such as beryllium copper (C1700HM, BeCuP10-HT) or spring phosphor bronze (C5210P-EH). is there. On the other hand, the conductive wire 2 is made of a conductive material such as copper, beryllium copper, nickel silver and the like into a linear shape.

In the present embodiment, the plate-shaped spring piece 1 is formed into a substantially mountain-shaped cross section and is formed into a bow shape in the longitudinal direction, and the surface of the mountain-shaped spring piece bulging into a bow shape is electrically conductive. A plurality of 2 are arranged in parallel and fixedly arranged. The conductive wire 2 has a circular cross-section and all wires have the same outer diameter, and adjacent wires are in contact with or joined to each other. The conductive wire 2 may be fixed to the spring piece 1 integrally by brazing.

Now, according to the current collector as described above,
The outer surface of each of the conductive wires 2 can be brought into contact with a trolley conductor having a substantially V-shaped sliding surface so that the trolley conductor slides to collect current. When the conductive wire 2 is pressed against the sliding surface of the trolley conductor, the supporting plate-shaped spring piece 1 bends from the lower side, and the elastic restoring force of the elastic wire 2 allows the conductive wire 2 to elastically contact the trolley conductor. be able to. Since the conductive wire 2 and the conductive spring piece 1 are integrally fixed to each other, they are electrically conductive and can cope with an increase in capacity.

FIG. 2 shows another embodiment of the current collector embodied by the first means of the present invention. 1'is a flat spring piece and 2'is a conductive wire. . That is, in this embodiment, the conductive wire 2'is fixedly arranged in parallel on the arcuate surface of the spring piece 1'which is shaped like a flat plate. The current collector of this embodiment is effective when the sliding surface of the trolley conductor is flat. In addition, 2a indicates a sliding point, and 3 indicates a sliding surface of the trolley wire conductor.

FIG. 3 shows still another embodiment of the current collector embodied by the first means of the present invention, in which 1 "is a spring piece having an arcuate cross section and 2" is a semicircle in cross section. Shaped conductive wire. That is, in this embodiment, the chord surface of the conductive wire rod 2 ″ is fixed to the circular arc surface of the spring piece 1 ″ so that the wire rod 1 ″
The circular arc surface is exposed to the outside so as to be used for sliding.

FIG. 4 shows an embodiment of a current collector embodied by the second means of the present invention, in which a large number of convex portions 5 are formed on the peripheral surface of the wire 4 formed of a conductive spring material. It is formed at intervals.

[0016]

As described above, according to the current collector of the present invention, the conductive wire itself or a spring piece attached to the conductive wire has a function of an arm and slides the conductive wire. Since it is pressed against the moving surface and used for sliding, it is sufficient to add only a connecting component for pulling the moving device, and the series of mechanisms is extremely simplified. In addition, since multiple conductive wires are used for sliding, the generation of abrasion powder is suppressed, and even if some wires are put into practice, sliding can be maintained with other wires and reliable current collection is possible. To

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of a current collector according to the first means of the present invention.

FIG. 2 shows another embodiment of the current collector according to the first means of the present invention, (a) is a front view and (b) is a cross-sectional view.

FIG. 3 is a transverse cross-sectional view showing still another embodiment of the current collector according to the first means of the present invention.

FIG. 4 is a transverse sectional view showing an embodiment of a current collector according to the second means of the present invention.

[Explanation of symbols]

 1 plate-shaped spring piece 2 conductive wire 1'plate-shaped wire 2'conductive wire 1 "plate-shaped spring piece 2" conductive wire 2a sliding point 3 sliding surface 4 conductive spring material Wire rod 5 convex

Claims (7)

[Claims] 1. A current collector comprising a plurality of electrically conductive wires arranged in parallel and fixed on the surface of a plate-shaped spring piece. 2. The current collector according to claim 1, wherein the plate-shaped spring piece is formed into a bow shape as a whole, and a conductive wire is fixed to a surface of the bow-shaped spring piece. 3. The current collector according to claim 1, wherein the plate-shaped spring piece is formed into a mountain shape or an arc shape when viewed from the cross section, and the conductive wire is fixed to the bulging surface. 4. The current collector according to claim 1, wherein the conductive wire has a circular cross section. 5. The current collector according to claim 1, wherein the conductive wire has a semicircular cross section, and its flat side surface is a fixing surface to the plate-shaped spring piece. 6. The current collector according to claim 1, wherein the plate-shaped spring piece is electrically conductive and is electrically connected to the electrically conductive wire. 7. A current collector comprising a wire made of a conductive spring material, the outer surface of which has a large number of protrusions in the circumferential direction.