JP2000324601A - Ground terminal block for rolling stock - Google Patents

Abstract

PROBLEM TO BE SOLVED: To omit a grounding plate made by a copper plate so that rust preventing painting can be omitted. SOLUTION: A ground terminal block main unit 30a is made by a stainless steel plate, so as to apply solder plating to a connection surface to a conductive wire. The ground terminal block main unit, by making it out of stainless steel plate can be welded to a car body with no problem, and high corrosion resistance of the ground terminal block main unit itself eliminates the need for applying rust preventing painting. Solder plating is applied to the connection surface of the ground terminal block main unit 30a to the conductive wire, so as to sufficiently ensure conductivity to the conductive wire of ground wire or the like by this solder plating layer 31.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground terminal block provided under a floor of a railway vehicle, which eliminates the need for curing the ground terminal block, simplifies its installation work, and reduces its maintenance cost. Can be done.

[0002]

2. Description of the Related Art An outline of a power supply path to each device of a railway vehicle is as shown in FIG. 1, and power is supplied from a wire 1 to a device 3 via a pantograph 2 and wiring in the vehicle. The device 3 is connected to a ground wire 25 via a ground terminal block 20 provided under the vehicle floor. The conventional grounding terminal block 20 is formed by welding and fixing an L-shaped grounding terminal block main body 20a made of a steel plate under the floor of a vehicle. An earth wire or the like is fixed to the ground plate 21 by passing a bolt through the hole 22. By the way, since the ground terminal block 20 is mounted so as to be exposed under the floor of the railway vehicle, the ground terminal block body 20a is coated with rustproof coating, and it is necessary to periodically perform maintenance on the painted surface. There is. On the other hand, ground plate 2
Reference numeral 1 denotes a copper plate to which a conductive wire such as an earth wire is connected. Therefore, the work for attaching the ground plate 21 requires a lot of man-hours, and paint is not applied to the connection portion. It is necessary to paint the ground terminal block main body 20a by masking the ground plate or the like (because the conductivity of the connection surface with the conductive wire is reduced). The above-mentioned painting work is troublesome and time-consuming, and the maintenance of the painted surface is troublesome because the work is under the floor of the vehicle.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to easily solve the above-mentioned problem in the conventional ground terminal block of a railway vehicle, and to omit a ground plate made of a copper plate and to connect so that rust-proof coating can be omitted. It is an object to devise the structure of the terminal block.

[0004]

Means taken to solve the problem The means taken to solve the above problem is that the ground terminal base body is made of stainless steel plate and the connection surface with the conductive wire is plated with solder.

[0005]

[Function] The main body of the ground terminal block must be welded and fixed directly to the vehicle body. However, it is made of stainless steel plate and can be welded to the vehicle body without any problem. There is no need to paint. On the other hand, since there is a solder plating layer on the connection surface of the ground terminal block main body with the conductive wire, the solder plating layer ensures sufficient conductivity with the conductive wire such as the ground wire. Therefore, it is not necessary to attach a copper plate for curing to the connection surface with the conductive wire,
Further, there is no need to apply rust-proof coating, and it is not necessary to periodically perform maintenance on the rust-proof coating surface. Since the solder plating layer of the stainless steel plate does not peel off for a long period of time, it is not necessary to perform maintenance from the viewpoint of ensuring conductivity.

[0006]

Next, an embodiment will be described with reference to FIG.
Although the shape and size of the ground terminal block 30 of this embodiment are not different from those of the prior art, the ground terminal block main body 30a is formed by bending a stainless steel plate into an L shape. Although a solder plating layer 31 is formed on a connection surface with a conductive wire such as an earth wire, in this embodiment, solder plating is applied to substantially the entire surface of the hanging portion 30b of the ground terminal block main body 30a for convenience of plating work. The thickness of the solder plated layer is sufficient if minimum 0.03 m m from the viewpoint of durability, and about almost 0.05 m m in consideration of the variation in plating thickness.

[0007]

[Others] The basic idea of the present invention is that the ground terminal block main body can be directly welded to the vehicle, and is made of a material having high corrosion resistance. Is compensated for by the conductive plating layer. Therefore, the material of the ground terminal block main body may be selected so as to meet the above-described basic idea, and a material that can be plated on the material of the ground terminal block main body and has high conductivity may be selected as the material of the plating layer. In addition, the ground terminal block body has a composite structure, weldability to vehicles, conductivity,
Achieving these characteristics of corrosion resistance by a combination of characteristics of different materials is one way of realizing the technical idea of the present invention, but this will inevitably increase the cost.

[0008]

[Effect] As described above, the grounding terminal block body is made of stainless steel plate which is relatively inexpensive, has excellent workability and corrosion resistance, and is excellent in weldability to a vehicle. By applying a solder plating layer to a stainless steel plate and supplementing the conductivity of the plating layer, the ground terminal block can be welded to the vehicle body without hindrance, and a copper plate for curing can be connected to the ground terminal block. There is no need to attach the rust-proof coating to the main body, and the rust-proof coating can be omitted, and regular maintenance of the rust-proof coating can be eliminated. Therefore, the manufacturing cost and maintenance cost of the ground terminal block can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic view of a railway vehicle showing an arrangement of ground terminal blocks.

FIG. 2A is a front view of a conventional ground terminal block,
(B) is a side view of the ground terminal block.

FIG. 3A is a front view of a ground terminal block according to the embodiment;
(B) is a side view of the ground terminal block.

[Description of Signs] 1: Overhead wire 2: Pantograph 3: Equipment 20, 30: Ground terminal block 20a: Ground terminal block main body 21: Copper plate 22: Hole 25: Ground wire 30a: Ground terminal block main body 30b: Hanging of ground terminal block Part 31: solder plating layer

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] January 24, 2000 (2000.1.2
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Ground terminal block of railway vehicle

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground terminal block provided under a floor of a railway vehicle, which eliminates the need for curing the ground terminal block, simplifies its installation work, and reduces its maintenance cost. Can be done.

[0002]

2. Description of the Related Art An outline of a power supply path to each device of a railway vehicle is as shown in FIG. 1, and power is supplied from a wire 1 to a device 3 via a pantograph 2 and wiring in the vehicle. The device 3 is connected to a ground wire 25 via a ground terminal block 20 provided under the vehicle floor. Conventional ground terminal block 20 is made of steel plate
Of the L-shaped grounding terminal block main body 20a with the conductive wire
It is configured by attaching a plate-like ground plate 21.
The ground terminal block body 20a is fixed by welding under the vehicle floor.
The bolt 22 is passed through the hole 22 so that the ground plate 2
A ground wire or the like is fixed to 1. By the way, since the ground terminal block 20 is mounted under the floor of the railway vehicle in an exposed state, the ground terminal block main body 20a is coated with a rust-proof coating. There is a need to do. On the other hand, since the ground plate 21 is made of a copper plate and is connected to a conductive wire such as a ground wire, it takes a lot of man-hours to attach the ground plate 21 so that paint is not applied to the connection portion. It is necessary to apply a paint to the ground terminal block main body 20a, for example, by applying a mask to the ground plate (since the paint will reduce the conductivity of the connection surface with the conductive wire). The above painting work is troublesome and time-consuming,
Also, maintenance of the painted surface is troublesome because it is performed under the floor of the vehicle.

[0003]

A problem you try this invention aims to easily solve the above problems of the ground terminal block of the conventional railroad vehicle, omitted copper-made grounding plate, also grounded to be omitted anticorrosive paint It is an object to devise the structure of the terminal block.

[0004]

Means taken to solve the problem is that the ground terminal block body is made of stainless steel plate, and the surface of the ground terminal block body made of stainless steel plate connected to the conductive wire is solder plated. That is to say.

[0005]

[Function] The main body of the ground terminal block must be welded and fixed directly to the vehicle body. However, it is made of stainless steel plate and can be welded to the vehicle body without any problem. There is no need to paint. On the other hand, since there is a solder plating layer on the connection surface of the ground terminal block main body with the conductive wire, the solder plating layer ensures sufficient conductivity with the conductive wire such as the ground wire. Therefore, it is not necessary to attach a copper plate for securing conductivity to the connection surface with the conductive wire, and it is not necessary to perform rust-proof coating, and it is not necessary to perform regular maintenance of the rust-proof coating surface. In addition,
Since the solder plating layer of the stainless steel plate does not peel off for a long period of time, there is no need to perform maintenance from the viewpoint of ensuring long-term conductivity. As mentioned above,
The function of the solder plating layer is the solder plating of stainless steel plate.
The layer does not delaminate over a long period of time,
The above plating material should be
Anything other than solder can be used as long as it has the writing function.
There is no title.

[0006]

Next, an embodiment will be described with reference to FIG.
Although the shape and size of the ground terminal block 30 of this embodiment are not different from those of the prior art, the ground terminal block main body 30a is formed by bending a stainless steel plate into an L shape. Although a solder plating layer 31 is formed on a connection surface with a conductive wire such as an earth wire, in this embodiment, solder plating is applied to substantially the entire surface of the hanging portion 30b of the ground terminal block main body 30a for convenience of plating work. The thickness of the solder plating layer may be at least 0.03 mm from the viewpoint of durability, but is set to approximately 0.05 mm in consideration of the variation in plating thickness.

[0007]

[Effect] As described above, the grounding terminal block body is made of stainless steel plate which is relatively inexpensive, has excellent workability and corrosion resistance, and is excellent in weldability to a vehicle. By applying a solder plating layer to a stainless steel plate and supplementing the conductivity of the plating layer, the ground terminal block can be welded to the vehicle body without hindrance, and a copper plate for curing can be connected to the ground terminal block. it is not necessary to be attached to the body, also, it is possible to omit the rust preventive coating, is
In addition, it is possible to eliminate the need for regular maintenance of the rust-proof painted surface. Therefore, the manufacturing cost and maintenance cost of the ground terminal block can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic view of a railway vehicle showing an arrangement of ground terminal blocks.

FIG. 2A is a front view of a conventional ground terminal block,
(B) is a side view of the ground terminal block.

FIG. 3A is a front view of a ground terminal block according to the embodiment;
(B) is a side view of the ground terminal block.

[Description of Signs] 1: Overhead wire 2: Pantograph 3: Equipment 20, 30: Ground terminal block 20a: Ground terminal block main body 21: Copper plate 22: Hole 25: Ground wire 30a: Ground terminal block main body 30b: Hanging of ground terminal block Part 31: Solder plating layer ──────────────────────────────────────────── ─────────

[Procedure amendment]

[Submission date] May 24, 2000 (2005.2.
4)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Ground terminal block of railway vehicle

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ground terminal block provided under a floor of a railway vehicle, which eliminates the need for curing the ground terminal block, simplifies its installation work, and reduces its maintenance cost. Can be done.

[0002]

2. Description of the Related Art An outline of a power supply path to each device of a railway vehicle is as shown in FIG. 1, and power is supplied from a wire 1 to a device 3 via a pantograph 2 and wiring in the vehicle. The device 3 is connected to a ground wire 25 via a ground terminal block 20 provided under the vehicle floor. The conventional ground terminal block 20 is configured such that a copper plate ground plate 21 is attached to a connecting portion of a steel plate L-shaped ground terminal block body 20a with a conductive wire. Are fixed to the ground plate 21 by bolts through holes 22.
The earth wire etc. is fixed to. By the way, the ground terminal block 2
Since 0 is mounted under the floor of the railway vehicle in an exposed state, the ground terminal block main body 20a is coated with a rust-proof coating, and it is necessary to periodically perform maintenance on the coated surface. On the other hand, since the ground plate 21 is made of a copper plate and is connected to a conductive wire such as a ground wire, it takes a lot of man-hours to attach the ground plate 21 so that paint is not applied to the connection portion. It is necessary to apply a paint to the ground terminal block main body 20a, for example, by applying a mask to the ground plate (since the paint will reduce the conductivity of the connection surface with the conductive wire). The above painting work is troublesome and time-consuming,
Also, maintenance of the painted surface is troublesome because it is performed under the floor of the vehicle.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to easily solve the above-mentioned problems in the conventional ground terminal block of a railway vehicle, by omitting a copper plate ground plate, and by grounding so that rust-proof coating can be omitted. It is an object to devise the structure of the terminal block.

[0004]

Means taken to solve the problem are as follows. The means taken to solve the above problem is that the ground terminal block body is made of stainless steel plate, and the conductive wire of the stainless steel plate ground terminal block body is connected.
This means that only the connection surface of the subsequent portion is plated with solder.

[0005]

[Function] The main body of the ground terminal block must be welded and fixed directly to the vehicle body. However, it is made of stainless steel plate and can be welded to the vehicle body without any problem. There is no need to paint. On the other hand, since there is a solder plating layer only on the connecting surface of the ground terminal block main body with the conductive wire, the conductivity with the conductive wire such as the ground wire is sufficiently ensured by the solder plating layer. Therefore, it is not necessary to attach a copper plate for securing conductivity to the connection surface with the conductive wire, and it is not necessary to perform rust-proof coating, and it is not necessary to perform regular maintenance of the rust-proof coating surface. In addition, since the solder plating layer of the stainless steel plate does not peel off for a long period of time, there is no need to perform maintenance from the viewpoint of ensuring long-term conductivity. In addition, as described above, the function of the solder plating layer is to ensure the conductivity of the connection surface without peeling over a long period of time. There is no problem with the one.

[0006]

Next, an embodiment will be described with reference to FIG.
Although the shape and size of the ground terminal block 30 of this embodiment are not different from those of the prior art, the ground terminal block main body 30a is formed by bending a stainless steel plate into an L shape. A solder plating layer 31 is formed on the connection surface with a conductive wire such as a ground wire. However, in this embodiment, almost the entire surface of the hanging portion 30b of the ground terminal block main body 30a (portion to which the conductive wire is connected) for convenience of plating. Is solder plated. The thickness of this solder plating layer is at least 0.03 mm from the viewpoint of durability.
Any thickness is acceptable, but the thickness is set to approximately 0.05 mm in consideration of variations in plating thickness.

[0007]

[Effect] As described above, the grounding terminal block body is made of stainless steel plate which is relatively inexpensive, has excellent workability and corrosion resistance, and is excellent in weldability to a vehicle. By applying a solder plating layer to a stainless steel plate and supplementing the conductivity of the plating layer, the ground terminal block can be welded to the vehicle body without hindrance, and a copper plate for curing can be connected to the ground terminal block. It is not necessary to attach to the main body, the rust-proof coating can be omitted, and the regular maintenance of the rust-proof coating surface can be eliminated. Therefore, the manufacturing cost and maintenance cost of the ground terminal block can be reduced.

[Brief description of the drawings]

FIG. 1 is a schematic view of a railway vehicle showing an arrangement of ground terminal blocks.

FIG. 2A is a front view of a conventional ground terminal block,
(B) is a side view of the ground terminal block.

FIG. 3A is a front view of a ground terminal block according to the embodiment;
(B) is a side view of the ground terminal block.

[Description of Signs] 1: Overhead wire 2: Pantograph 3: Equipment 20, 30: Ground terminal block 20a: Ground terminal block main body 21: Copper plate 22: Hole 25: Ground wire 30a: Ground terminal block main body 30b: Hanging of ground terminal block Part 31: solder plating layer

Claims (4)

[Claims] 1. A ground terminal block for a railway vehicle in which a connection surface of a main body of a ground terminal block made of a metal material, which is weldable to a vehicle and has excellent corrosion resistance, with a conductive layer is coated with a plating layer having excellent conductivity. . 2. The ground terminal base body is made of a stainless steel plate.
A ground terminal block for railway vehicles with solder plating on the connection surface with the conductive wire. 3. The ground terminal block for a railway vehicle according to claim 1, wherein the ground terminal block main body is formed of a plate material of a single material. 4. A ground terminal block for a railway vehicle according to claim 1, wherein said plating thickness is 0.03 mm or more.