JPH1174131A - Cut core parts - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the supporting and fixing man-hours of cut cores so as to dispense with the expensive bonding resin which has been used in the conventional example, by using a holder having projecting pieces which are respectively brought into contact with the upper and lower surfaces of the cut cores. SOLUTION: A holder 15 has elasticity and, at the same time, projecting pieces which are respectively brought into contact with the upper and lower surfaces of cut cores 11 and formed at prescribed angles, so that the pieces press-contact with each other. The holder 15 is positioned between the inner peripheral sections of the cores 11, which become the bottom section of a U- shape and a coil 12 and the cores 11 are held between the projecting pieces of the holder 15. The cut cores 11 are press-contacted with each other with a spacer 13 in between, and the cores 11 are fixed together with the spacer 13 with a clamping band 14. In addition, an insulating material 20 is put between the holder 15 and the coil 12, and projecting pieces which retain the insulating material 20 are formed on the holder 15. Moreover, through-holes are formed through the attaching section of the holder 15, and the holder 15 is fixed to a base plate 22 with screws by utilizing the through-holes.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] The present invention relates to a choke coil,
The present invention relates to a cut core component used for a noise filter, a transformer, and the like.

[0002]

2. Description of the Related Art FIG. 7 shows a front view of an example of a conventional cut core component. FIG. 8 shows a perspective view in which a coil is combined with the conventional cut core. FIG. 9 shows a perspective view of the cut core. The cut core 1 is formed by winding a ribbon such as a silicon steel plate, an amorphous soft magnetic alloy ribbon, a nanocrystalline soft magnetic alloy ribbon, forming a wound core, impregnating with a resin or the like, and then cutting. Have been.

[0003] A coil 2 formed by winding a wire around a bobbin is inserted into the leg of the cut core 1, the cut core 1 is abutted, and the cut core 1 is fixed by a fastening band 3. The cut core component was bonded and fixed to a mounting base plate 4 with a resin 5. A mounting hole is formed in the base plate 4, and a cut core component is mounted on the mounting hole through a screw or the like. Although not shown,
A lead wire is drawn out of the coil 2, and an electrical connection is made by the lead wire.

[0004]

In the conventional structure, the cut core 1 is bonded and fixed to the base plate 4 with the resin 5, so that the bonding process is troublesome, and the resin is expensive, and the man-hour and cost are reduced. Both had problems.

[0005] In view of the above, it is an object of the present invention to provide a cut core fixing structure that can reduce man-hours and costs.

[0006]

According to the present invention, there is provided a cut core component in which a pair of U-shaped cut cores are butted by inserting coils into leg portions of the cores, and the outer periphery thereof is fixed with a tightening band. The core is a cut core component that is horizontally butted, and the cut core is supported and fixed by a holder having protruding pieces that contact the upper and lower surfaces of the cut core.

Further, in the present invention, the holder is disposed at an inner peripheral portion or an outer peripheral portion corresponding to a U-shaped bottom of the cut core. Further, it is preferable that the holder is provided at at least two places of the pair of cut cores. In the present invention, the holder has elasticity. In addition, the holder of the present invention may be provided with a mounting portion integrally, and may be mounted as it is, or may be mounted by fixing the holder to a base plate as in the related art. Further, in the present invention, the holder may be fixed to the cut core with a tightening band.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 is a front view and FIG. 2 is a plan view of an embodiment according to the present invention. FIG. 3 is a perspective view of a holder according to an embodiment of the present invention, and FIG. 4 is a front view of the holder. This embodiment is a cut core component in which a coil 12 is inserted into a cut core 11 and butted against each other.
The spacer 13 is inserted into the one butted portion. The butted cut core 11 is fixed by a tightening band 14.

The holder 15 of the present invention comprises the cut core 11
And a projection 17 abutting on the lower surface of the cut core 11 are formed at a predetermined angle so as to press the cut core, and have elasticity. Then, a holder 15 is arranged between an inner peripheral portion corresponding to the U-shaped bottom of the cut core 11 and the coil 12, and the protrusion 1
The cut core is sandwiched between 6 and 17. An insulating material 20 is disposed between the holder 15 and the coil 12, and a protruding piece 19 for holding the insulating material 20 is attached to the holder 1.
5 is formed.

As described above, the coil 12 is inserted, the cut core 11 is abutted, and the holder 15 and the insulating material 20 are placed between the coil 12 and the cut core 11 on the inner peripheral portion corresponding to the U-shaped bottom of the cut core 11. , And integrally formed with the tightening band 14 to constitute a cut core component. FIG. 5 shows a state in which the holder 15 holds the cut core 11. Thus, the protruding piece 1 of the holder 15
The cut core 11 is sandwiched between 6 and 17.

Then, the mounting portion 18 of the holder 15
The base plate 2 has a through-hole 21 and
It is screwed to 2. The holder 15 was made of stainless steel (SUS304).

According to this embodiment, the cut core component can be easily fixed to the base plate 22 by the holder.
The conventional bonding process is not required, and expensive resin is not required.

FIG. 6 is a perspective view showing another embodiment according to the present invention. In this embodiment, the holder 31 is arranged on the outer peripheral side of the cut core 11. FIG. 6 shows only the cut core 11 and the holder 31, but other structures are the same as those of the above-described embodiment. In the embodiment shown in FIG. 6, by providing a tightening band outside the holder 31, the cut core and the holder can be firmly fixed.

In the present invention, the holder is attached to the base plate and the base plate is mounted. However, the holder can be directly mounted using the holder. Also, various fastening bands can be used.

[0015]

According to the present invention, the cut core is supported and fixed by using the holder having the protruding pieces that respectively contact the upper and lower surfaces of the cut core. It is possible to eliminate the need for an expensive bonding resin that was conventionally required.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment according to the present invention.

FIG. 2 is a plan view of one embodiment according to the present invention.

FIG. 3 is a perspective view of a holder according to an embodiment of the present invention.

FIG. 4 is a front view of a holder according to an embodiment of the present invention.

FIG. 5 is a partial perspective view of one embodiment according to the present invention.

FIG. 6 is a partial perspective view of another embodiment according to the present invention.

FIG. 7 is a front view of a conventional example.

FIG. 8 is a perspective view of a conventional example.

FIG. 9 is a perspective view of a cut core.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 11 Cut core 12 Coil 14 Tightening band 15, 31 Holder 16, 17, 19 Protrusion piece 22 Base plate

Claims (3)

[Claims] 1. A cut core component in which a pair of U-shaped cut cores are butted by inserting coils into leg portions of the cores, and the outer periphery is fixed with a tightening band, wherein the U-shaped cut cores are butted in a horizontal direction, A cut core component, wherein the cut core is supported and fixed by a holder having a projecting piece that contacts each of the upper and lower surfaces of the cut core. 2. The cut core component according to claim 1, wherein the holder is disposed at an inner peripheral portion or an outer peripheral portion corresponding to a U-shaped bottom of the cut core. 3. The cut core component according to claim 1, wherein the holder has elasticity.