JPH0438571Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a line noise filter assembly for suppressing electromagnetic noise in signal circuits such as data lines.

Conventionally, line noise filters for suppressing electromagnetic noise in data line signal circuits have been constructed by winding multiple wires around a toroidal core at the same time the required number of times to form a toroidal coil, and connecting multiple pin terminals on both sides. The toroidal coil is fixed to the terminal blocks installed in two rows, and the lead ends of the windings are connected to the pin terminals in the rows on both sides of the terminal block using wires, solder, etc., and after the winding is completed, The work efficiency is poor due to the terminal connection, and since multiple wires are wound around the core at the same time, the lead end of each wire at the beginning and end of the winding is unknown, and it is easy to connect to the pin terminal by mistake. However, it has the disadvantage of causing poor continuity.

The present invention aims to improve the efficiency of connecting the lead end to the pin terminal, and to connect the lead at the beginning and end of the winding in the production of line noise filters for suppressing electromagnetic noise in signal lines. The purpose of the present invention is to provide a line noise filter assembly that is easy to connect to an end pin terminal and prevents wiring errors.

The present invention provides a bobbin with flanges projecting outward at both left and right ends of a cylindrical winding core made of an insulating material, and a groove for attaching the flanges of the bobbin to accommodate a plurality of pin terminals. Prepare two terminal blocks made of implanted insulating material, and connect and solder the base of the pin terminal facing each conductor to the length required for the number of turns of the coil when formed into a coil. connect the wire rods, attach one terminal block to the collar of the bobbin, simultaneously wind the multiple wire rods spanning the two terminal blocks around the winding core of the bobbin the required number of times, and Attach the terminal block to the flange on the side facing the bobbin, and connect UU, UI, EE,
This is an assembly of a line noise filter used for signal lines, in which an EI-shaped core is assembled into a bobbin and the core is fixed using tape, metal fittings, etc.

1, 2, and 3 are perspective views showing one embodiment of the present invention.

First, the cylindrical winding core 1 made of an insulating material shown in FIG.
A bobbin is provided with flanges 2 projecting from both left and right ends of the bobbin.

In Fig. 2, the terminal block 4 made of insulating material is
A groove 5 to which the collar 2 of the bobbin is attached is provided, a plurality of pin terminals 6 are planted, two terminals are placed facing each other, and wire rods 7 are tied, soldered, etc. to the mutually opposing pin terminals 6. and form a tangled portion 8 at the base of the pin terminal.

Figure 3 shows the assembly of the bobbin and terminal block.
, the two terminal blocks 4 connected by a plurality of wire rods 7 are attached and fixed, and the plurality of wire rods 7 are simultaneously wound around the winding core 1 of the bobbin to form the winding part 10. Another terminal block 4 is attached to the flange 2 to form a multi-layered bobbin with a pin terminal,
E-type cores 9 are inserted from the left and right sides of the core insertion hole 3 of the bobbin, and the cores are fixed to form a line noise filter.

As explained above, the present invention not only makes it easier to connect the coil lead end to the pin terminal, but also
Since incorrect connection of wires can be prevented, it has become possible to eliminate conduction defects and construct an inexpensive line noise filter assembly for suppressing electromagnetic noise superimposed on signal lines.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the bobbin of the present invention. FIG. 2 is a perspective view showing a state in which wires are attached to the terminal block of the present invention. FIG. 3 is a perspective view showing the assembly of the line noise filter assembly of the present invention. 1... Winding core, 2... Tsuba, 3... Core insertion hole, 4
...Terminal block, 5...Groove, 6...Pin terminal, 7...
Wire rod, 8...Tangled portion, 9...E-type core, 10...
...Winding section.

Claims (1)

[Scope of utility model registration request] A line noise filter assembly comprising: a bobbin having outwardly projecting flanges at both left and right ends of a cylindrical winding core made of insulating material; and two terminal blocks having a vertical groove on the top surface into which the flange of the bobbin is inserted perpendicular to the surface and a number of pin terminals corresponding to the number of windings planted on the bottom surface, wherein a plurality of wires are connected between the pin terminals of the two terminal blocks, one flange of the bobbin is inserted and fitted into the vertical groove of one terminal block, and then the wires are wound around the bobbin winding core, and the flange of the bobbin is inserted and fixed in the vertical groove of the other terminal block.