JPS5930578Y2 - Magnetic levitation railway ground coil connection device - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a ground coil connection device for a magnetic levitation railway, which allows connection parts to be easily formed.

Traditionally, electric wires have been used to connect ground coils in maglev trains, but by supplying power with high voltage and primary current on the power supply system, it is possible to reduce losses and reduce the number of power supply lines. There is a growing demand for higher voltage.

Therefore, a structure shown in FIG. 1 has been proposed as a connecting device that facilitates connection with ground coils.

In FIG. 1, 1 and 2 are conductors connected to a ground coil (not shown) or conductors forming an insulated bus bar, and contacts 5a and 5b are fixed to the ends of each conductor 1 and 2. .

Each of the contacts 5a and 5b forms a current-carrying connection by contact.

3 is an insulating member surrounding the conductor 1, and 4 is an insulating member surrounding the conductor 2.

Each of the insulating members 3 and 4 is made of hardening resin, and has connecting flanges 3a and 4a provided at the ends thereof.

γ is a groove with a predetermined depth provided on the opposing surfaces of both flanges 3a and 4a; 8 is a 01J ring attached to groove 1;
6a is a bolt and nut that fastens between the flanges 3a and 4a, and 6b is a bolt that fastens the conductor 1 and the contact 5a.

This is a connecting device for ground coils for magnetic levitation railways.The conductor 1 connected to the ground coil and the conductor 2 forming an insulated bus bar form a current-carrying connection part with contacts 5a and 5b. When doing so, it is difficult to align the central axes of the conductors 1 and 2, and even if there is a slight deviation, the contact 5a is fixed to the conductor.

Each end face of 5b is in contact with each other, and the contacts 5a and sb do not engage with each other.

In addition, if contact is made with the center axis deviated, the contact surface will be shifted to one side, reducing the contact area, resulting in heat generation.

This idea was made in view of the above-mentioned drawbacks, and the first contact consists of a plurality of contact pieces each having a protrusion that expands at the end and can come into contact with the second contact. The first contact is pressed against the second contact by an elastic member from the outer periphery of the contact, and the connecting member having a spherical engagement portion and fixed to the first conductor is connected to the first contact.
Provided is a ground coil connection device for a magnetic levitation railway in which contactors of the present invention are tiltably connected.

This will be explained below based on the figures.

In FIG. 2, 1 to 4. sb, 6a, γ, and 8 are the same as before.

5c is a first contact consisting of a plurality of contact pieces each having an enlarged end and a protrusion capable of contacting the contact 5b; 9 is rotatably fitted into the end of the first contact 5c; spherical body, 10
is a bolt connected to the spherical body 9 and fixed to the conductor 1;
and 10 constitute a connecting member 11.

12a and 12b are auxiliary conductors that connect the first contact 5c and the bolt 10; 13 is an elastic member disposed around the outer periphery of the first contact 5c, such as a ring-shaped spring; This elastic member 13 presses the first contact 5c against the second contact 5b.

With this configuration, the first contact 5c is tiltably attached to the end of the first conductor 1, and the end is spread out, so that the first contact 5c is not deviated from the center axis of each conductor 1, 2. Connections are easily formed even if there is a problem.

FIG. 3 shows another embodiment, in which a hexagonal hole 9 is placed in a spherical body 9.
a, and conductor 1 from the operation hole provided in the first contact 5c.
It is expected that the same effect as the above-mentioned implementation row will be achieved by making it easier to attach and detach the device.

According to this invention, the first contact is made up of a plurality of contact pieces each having a protrusion that expands at the end and can come into contact with the second contact, and an elastic member is inserted from the outer periphery of the first contact. The first contact is pressed against the second contact, and the first contact is tiltably connected by a connecting member having a spherical engaging portion and fixed to the first conductor. Accordingly, even if the work of aligning the center axes of each conductor is omitted, the connection portion can be easily formed, and the workability of the connection is improved.

[Brief explanation of drawings]

FIG. 1 is a front view of a conventional connecting device, FIG. 2 is a front view of an embodiment of the invention, and FIG. 3 is a front view of another embodiment. In the figure, 1 is the first conductor, 2 is the second conductor, 3, 4
5b is a second contact, 5c is a first contact, 11 is a connecting member, and 13 is an elastic member. Note that the same reference numerals in each figure indicate the same or corresponding parts.

Claims (1)

[Scope of utility model registration request] A second contact fixed to a second conductor is inserted into a first contact fixed to a first conductor, and a second contact fixed to a second conductor is inserted and connected, and the outer periphery of the side conductor is hardened with a flange formed at each end. The first contact is surrounded by an insulating member made of plastic and fastens between the flanges, and the first contact is made of a plurality of contact pieces each having an expanded end and a protrusion capable of contacting the second contact. and an elastic member extends from the outer periphery of the first contactor to the first contactor.
The contactor is pressed against the second contactor, and the first contactor is tiltably connected to the spherical retaining portion of the connecting member fixed to the first conductor. Magnetic levitation railway ground coil connection device.