JPH0316268Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a train control coil used in the ground coil or onboard coil of an ATS (automatic train stopping system).

(Prior technology) ATS ground coil or onboard coil (hereinafter referred to as
A wire (simply referred to as a coil) is formed by winding a wire into a shape of two connected rectangles (hereinafter referred to as a figure 8 or figure 8 shape). Because the coil has a special shape, the coil is wound using a Bakelite coil frame.
Each turn will be wound by hand. After winding in this way, the entire wire will be hardened with epoxy resin, but before that, the distribution capacity will increase if this epoxy resin is impregnated into the wire, so as a measure to prevent this, The coil part will be covered with a cover shaped like a cylinder divided into two parts.

(Problems to be solved by the invention) In the conventional coil manufacturing method performed in this way, the efficiency is not improved because the coil winding work is done by hand, and it requires a highly skilled person to achieve uniform winding. There was a problem that the product could not be manufactured. The present invention has been developed in view of this point, and by completely changing the structure from conventional coils, we aim to provide a train control coil that can be mechanically wound and easily yields a uniform product. That is.

(Means for Solving the Problems) The present invention, as a means to solve the above problems, is based on a train control coil made of a thin plate made of thermoplastic resin and having grooves in the shape of two connected rectangles formed on the periphery. The coil part is housed in the groove of the case, and a cover plate covers the upper part of the groove after housing the coil part.

(Function) With this configuration, the coil section is housed in the groove of the case after winding, and the
Since the wire is shaped like a letter, winding can be done with either one large-diameter circular wire, or two small-diameter circular wires. Therefore, mechanical winding becomes possible and a uniform product can be obtained efficiently. Furthermore, as a means to prevent the wire from being impregnated with resin, it is sufficient to simply place a flat cover plate over the groove, and in this respect as well, the number of man-hours can be significantly reduced compared to the conventional method.

(Example) Next, an example of the present invention will be explained with reference to the drawings. In Fig. 1, 1 is a case, which is made of thermoplastic resin in the shape of a plate, and has two squares connected to the periphery. This groove is provided with a shaped groove 2 (second
(see figure). A coil portion 3, which will be described later, is accommodated in the groove 2 of the case 1, and the upper portion thereof is covered with a cover plate 4. The cover plate 4 is flat and has the same overall shape as the groove 2. Note that when covering the upper part of the groove 2, adhesive is applied to the lower surface in advance.

The coil portion 3 is finally deformed into a shape that matches the groove 2 of the case 1, but at the initial stage it is wound into a circular shape with a length that fits into the groove 2, as shown in Fig. 3a. There is. When the coil portion 3 wound in this manner is inserted into the groove 2, hold the opposing circular portions and twist once to form a figure 8 shape as shown in Figure 3b, and then As shown in Figure 3c, add corners to make it a square that matches the groove 2. When deforming, the lead wires 5 connected to the beginning and end of the winding are placed in the center. The coil part 3 in this state is inserted into the groove 2 of the case 1, and the cover plate 4 is fixed by adhesive from above.

The cover plate 4 may be formed in a figure 8 shape from the beginning, but as shown in the figure, seven straight pieces may be used to form a figure 8 shape as a whole. By solidifying the entire product thus obtained with epoxy resin, connecting the circuit to the lead wire 5, and performing necessary inspections and adjustments, a coil for train control can be manufactured. Although the overall size and aspect ratio will differ depending on whether this coil is used in an ATS ground coil or an onboard coil, the basic structure remains the same.

Although the coil portion 3 described above is wound into a large-diameter circular shape and twisted into a figure-eight shape just before being fitted into the groove 2 of the case 1, the present invention is not limited to this. As shown in Fig. 4, two small-diameter circular pieces are manufactured, and the winding start and winding end of one coil part 3a and the other coil part 3b are connected, and as a result, 8
The coil portion 3 may be formed in a letter shape.

(Effects of the Invention) Since the present invention is a train control coil configured as described above, the number of manufacturing steps can be significantly reduced compared to the conventional coil. Since the coil portion is simply wound in a circular manner, winding does not require any skill as in the past, and a uniform product can be obtained.

[Brief explanation of drawings]

Fig. 1 is an exploded perspective view of the case and cover plate of one embodiment of the present invention, Fig. 2 is a sectional view of the case and the coil section, and Figs. 3 a to c illustrate the assembly process of the coil section. FIG. 4 is an explanatory diagram showing another example of the coil. 1...Case, 2...Groove, 3...Coil part, 4
...Lid plate.

Claims (1)

[Claims for Utility Model Registration] (1) A case made of a thin plate made of thermoplastic resin and having grooves in the shape of two connected rectangles formed on its periphery; a coil portion accommodated in the grooves of the case; A train control coil comprising: a cover plate that covers the upper part of the groove after accommodating the coil part. (2) The scope of the utility model registration claim, in which the coil part has a large-diameter circular shape when wound, and is twisted into a figure 8 shape when housed in the groove of the case. The train control coil described in paragraph (1). (3) The coil part consists of two small-diameter circular pieces when wound, and the beginning and end of the winding of the two pieces are connected when housed in the groove of the case. A train control coil as set forth in claim (1) of a certain utility model registration.