JPH0641110U - Toroidal coil - Google Patents

Abstract

(57) [Summary] [Purpose] A toroidal coil with a terminal block that does not use an adhesive to fix the terminal block and the toroidal coil. [Structure] Protruding portions 3 with holes are formed in the upper and lower portions of the terminal block 2 by cutting out the center of the toroidal coil 1 in the coil receiving groove 6 on the upper surface of the terminal block.
To form a toroidal coil in which the lead wire 4 is inserted into the guide hole of the protrusion and the bent portion 7 is formed in the lead wire passing through the notch between the upper and lower protrusions.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a toroidal coil with a terminal block used as an inductor.

[0002]

[Prior art]

 Conventionally, a toroidal core formed by molding a magnetic metal fine powder of a soft magnetic material into a toroidal type using a resin as a binder and applying an electrically insulating coating on the surface, a soft magnetic Mn-Zn ferrite, or a Ni-Zn When mounting a toroidal coil in which a ferrite toroidal core is wound on a substrate, the toroidal coil 1 is mounted on the board as shown in FIG. Adhesive 13 is applied to the inner surface and the toroidal coil is placed in the coil receiving groove, the toroidal coil 1 and the terminal block 12 are adhesively fixed with an adhesive, and the lead wire 4 of the toroidal coil is pulled out to the lower surface of the terminal block and is then transferred to the substrate. It has a structure that can be mounted. However, since an adhesive is used to fix the toroidal coil 1 and the terminal base 12, there are various problems such as storage of the adhesive and assembly man-hours.

[0003]

[Problems to be solved by the device]

 In order to solve the conventional problems when assembling a toroidal coil with a terminal block, the present invention is configured so that the toroidal coil can be fixed to the terminal block without using an adhesive by changing the structure of the terminal block. , A toroidal coil with a terminal block is used to fix the toroidal coil to the terminal block only by forming the lead wire in a V shape and without using an adhesive.

[0004]

[Means for Solving the Problems]

 The present invention has a holed protrusion with a guide hole for inserting the lead wire of the coil in the center of the upper and lower parts of both sides of the terminal block with a coil receiving groove on the upper surface. The toroidal coil is fixed to the terminal block and the lead wire of the toroidal coil can be easily attached to the board by bending the lead wire in a V shape in the middle of the upper and lower protrusions on the side surface of the terminal block. Use a toroidal coil that can be mounted.

That is, according to the present invention, a toroidal coil is provided in the coil receiving groove of a terminal block having a coil receiving groove on the upper surface and a protrusion having a guide hole formed in the center of an upper portion and a lower portion in the center of the upper and lower portions. Is a toroidal coil having a bent portion formed in the notch between the upper and lower protruding portions with holes of the lead wire inserted in the guide hole.

[0006]

[Action]

 On both sides of the terminal block, form a terminal block that is separated at the center and has a protrusion with a hole for inserting the lead wire for inserting the coil lead wire in the center. Attach the coil to the coil receiving groove that has a bottom surface with almost the same curvature as the outer circumference of the coil, insert the coil lead wire into the guide hole of the protrusion, and attach it to both sides of the terminal block. A toroidal coil is formed by bending the lead wire between the terminals along the side surface of the terminal block into a dogleg shape, for example, and fixing the coil to the terminal block and mounting the lead wire to the board without using an adhesive. .

[0007]

【Example】

 FIG. 1 is an external perspective view of a toroidal coil according to the present invention, in which the toroidal coil 1 is mounted on a terminal block 2 and the board mounting direction is centered on the upper and lower portions of both sides of the terminal block 2 with the middle cut out. A protrusion 3 with a hole in which a guide hole 5 is formed is provided, the lead wire 4 of the coil is inserted, and between the protrusions with holes above and below, the lead wire is parallel to the terminal lead-out surface, for example, a dogleg shape. The bent portion 7 is formed. 2 shows a terminal block used in the toroidal coil of the present invention, FIG. 2 (a) is a front view, and FIG. 2 (b) is a plan view. On both side surfaces of the terminal block 2, there are mounted protrusions 3 having notches in the middle and mounting guide holes 5 in the upper and lower parts in the center of the board. Also, on the upper surface of the terminal block, the outer circumference of the toroidal coil is attached. A coil receiving groove 6 having a curvature substantially the same as the curvature is formed. FIG. 3 is a perspective view of the toroidal coil 1 before it is attached and fixed from above the terminal block 2 from above. The lead wire 4 of the toroidal coil 1 is inserted into the guide hole 5 of the protrusion 3 and the toroidal coil 1 is fixed. After being installed and fixed in the coil receiving groove 6, a V-shaped bent portion 7 is formed in the lead wire 4 between the protrusions attached to the upper and lower positions of the both sides of the terminal block 2 to form the V-shaped bent portion of the present invention shown in FIG. Complete the toroidal coil.

[0008]

[Effect of device]

 According to the present invention, the toroidal coil is housed in the coil receiving groove on the upper surface and the protrusion having the guide hole at the center is formed by notching the center on both sides. The structure is such that it is inserted into the guide hole of the projection with a hole in the lower part, and a lead wire that passes through the notch between the two upper and lower projections is formed with, for example, a dogleg-shaped bent portion and is fixed. The toroidal coil can be formed at a low cost because it is easy to use and does not require the use of an adhesive as in the past.

[Brief description of drawings]

FIG. 1 is an external perspective view of a toroidal coil according to the present invention.

2A and 2B are views showing a terminal block attached to the toroidal coil of the present invention, in which FIG. 2A is a plan view and FIG. 2B is a front view.

FIG. 3 is an exploded perspective view of a toroidal coil according to the present invention.

FIG. 4 is an exploded perspective view of a conventional toroidal coil.

[Explanation of symbols]

 1 Toroidal coil 2, 12 Terminal block 3 Projection 4 Lead wire 5 Guide hole 6 Coil receiving groove 7 Bending part 13 Adhesive

Claims (1)

[Scope of utility model registration request] 1. A toroidal coil is accommodated in the coil receiving groove of a terminal block having a coil receiving groove on the upper surface and a notch formed in the center of both sides to form guide holes in the upper and lower centers, A toroidal coil having a bent portion formed in a notch between the upper and lower holed protrusions of the inserted lead wire.