JPS6350826Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to the structure of a toroidal coil in which the toroidal core is placed vertically (vertically) and is mounted on a board, device, or the like.

When installing a toroidal coil made by storing a toroidal core in an insulating case and applying the necessary windings on top of it by placing it vertically on a device or board, etc., without using special hardware parts, Conventionally, the lead wires of the windings were held in tension and connected, and the coil itself was fixed with adhesive, but in the case of vertical installation, the contact area is originally small, so it is sufficient to apply adhesive in mounds. There was a problem in that the coil could not be fixed in place, and the repeated stress caused by the vibration of the coil itself acted on the lead wire, causing the lead wire to break due to fatigue. Further, since the lead wires are not positioned, there is a problem that it is difficult to insert the lead wires into the through holes of the substrate or the like.

The purpose of the present invention is to obtain a vertical toroidal coil that can protect and position lead wires with a simple structure using a conventional insulating case.

The present invention constitutes an insulating case of a toroidal core by an outer cylinder, an inner cylinder, a lid body that covers both sides of the outer cylinder and the inner cylinder, and a partition plate that divides the space of the inner cylinder into two. The outer periphery of the inner cylinder is tightly fitted to a holding plate made of an insulator having a Ω-shaped cross section and having small holes through which the lead wires of the windings pass through in the flat parts of both ends, and the space of the inner cylinder is divided into right and left sides by partition plates. It concerns a toroidal coil formed by split winding.

FIG. 1 shows the appearance of an embodiment of a toroidal coil according to the present invention. In the figure, 1 is the insulating case body, 2 is the insulating case lid, 3 is the holding cover, 4,
5 is a winding.

Insulating case 1 consisting of the above-mentioned main body 1 and lid body 2
insulates the toroidal core and the winding, and
This is a well-known type of common mode choke coil in which two windings are insulated from each other. 11 is an outer cylinder, 12 is an inner cylinder, 13 is a partition plate, 1
4 is a bottom partition, and 21 is an upper partition.

The holding cover 3 is made of an insulating material, has a Ω-shaped cross section, and has an axial dimension similar to that of the main body 1, as shown in a perspective view in FIG.
approximately equal to the axial length of The recess 31 is a fitting recess that fits into the outer periphery of the main body 1, and the retaining plate 32 extends both ends of the recess 31 outward in opposite directions to form a retaining plate 32. The bottom surface of the retaining plate 32 is formed by extending both ends of the recess 31 outward in opposite directions. It is set so that it is in the same plane as the lowest part of the main body 1 or in a plane lower than that.

The retaining plate 32 has a plurality of through holes 33 having a size approximately equal to the thickness of the lead wire of the winding, and a vertical groove 34 that extends from each of the through holes 33 to the edge of the retaining plate and has a width slightly smaller than the thickness of the lead wire. is drilled.

A toroidal core (not shown) is stored in the storage space of the case body 1, the lid body 2 is fitted into the body 11 to cover the core, and the fitting recess 31 of the holding cover 3 is formed on the outer periphery of the body 1, and the partition plate 13 The insulating case and the holding cover are fitted tightly so that they are symmetrical planes, the insulating case and the holding cover are integrated, and the windings 4 and 5 are respectively applied from above through the space divided into two parts of the inner cylinder 12.
42, 51, 52 are passed through the vertical groove 34, inserted into the through hole 33, pulled out downward and fixed, thereby completing a toroidal coil.

As described above, according to the present invention, a simple-shaped holding cover is fitted onto the outer periphery of a conventional insulating case, and the cover and case are integrally wound, so that the cover is tightened and fixed. Since the lead wire can be positioned on the holding plate, it can be easily attached to a board, etc. Furthermore, since the holding plate allows bonding over a wide area and securely fixing, it is possible to prevent breakage accidents due to lead wire fatigue.

[Brief explanation of drawings]

Fig. 1 is a perspective view of one embodiment of the present invention;
The figure shows a perspective view of the holding cover used in FIG. In the figure, 1...Insulating case body, 2...Insulating case lid, 11...Outer cylinder, 12...Inner cylinder, 1
3... Partition plate, 3... Holding cover, 31... Fitting recess, 32... Holding plate, 33... Through hole, 34...
...Vertical groove, 4, 5...Winding, 41, 42, 51, 5
2...Winding lead wire.

Claims (1)

[Scope of utility model registration request] An insulating case of the toroidal core is constituted by an outer cylinder, an inner cylinder, a lid body that covers both sides of the outer cylinder and the inner cylinder, and a partition plate that divides the space of the inner cylinder into two, and the outer periphery of the outer cylinder is The winding is carried out by fitting tightly into a holding plate made of an insulator having a Ω-shaped cross section and having a small hole through which the lead wire of the winding passes through the flat parts of both ends, and dividing the space in the inner cylinder into left and right sides by a partition plate. A toroidal coil.