JPH0579913U - Terminal block for toroidal coil - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a terminal block for assembling a toroidal coil with a terminal block without using an adhesive. A box-shaped projecting piece 4 having a projection 3 formed on its inner surface is formed at the center of the upper end of the opposing side walls of the terminal block 2 having a lead wire hole 12 for drawing out a lead wire on the bottom surface.
A terminal block having a structure in which a slit 9 is formed above the center of another side wall.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a structure of a terminal block that fixes a toroidal coil.

[0002]

[Prior Art]

 Conventionally, choke coils mounted on a circuit board and toroidal coils for noise suppression are difficult to fix because the shapes are unstable, and mounting is done manually because the terminal positions are not uniform, but stable. In order to facilitate various fixing and mounting work, it is used by incorporating it inside a rectangular parallelepiped terminal block 11 as shown in FIG. The conventional terminal block 11 has a rectangular parallelepiped shape and an arc-shaped recess 13 of the same size as the outer shape of a toroidal coil incorporated in the center, and a lead wire hole 12 for guiding a lead wire is provided at the bottom thereof. .. FIG. 3 is a view for explaining the assembly of a toroidal coil with a terminal block using the conventional terminal block 11. As shown in FIG. 3A, the adhesive 7 is supplied from the adhesive supply device 8 to the recess 13 of the terminal block 11, and the lead wire of the recess 13 of the terminal block 11 is supplied from above as shown in FIG. Insert the lead wire 5 of the toroidal coil 1 into the hole 12 and bury the lower half of the toroidal coil 1 in the recess 13 of the terminal block 11 as shown in FIG. It was fixed with agent 7 and completed. The toroidal coil with a terminal block made in this way was able to be stably and reliably mounted when mounted on a substrate, etc., but since an adhesive is used during manufacturing, the work is cumbersome, labor-intensive, and expensive. In addition, there is a problem that it is uneconomical because it cannot be fixed even if it needs to be fixed because it is fixed with an adhesive. Further, there was a problem that the adhesive could leak from the lower lead wire hole or the upper end of the terminal block during the assembly, and the lead wire or coil could be soiled, or the diameter of the lead wire could be changed so that it could not be used.

[0003]

[Problems to be solved by the device]

 An object of the present invention is to eliminate the above-mentioned problems, that is, a toroidal coil terminal block, that is, a toroidal coil having a structure in which the toroidal coil is fixed to the terminal block without using an adhesive and the lead wire can be arranged at a predetermined position. It is to provide the terminal block for.

[0004]

[Means for Solving the Problems]

 In order to solve the above-mentioned problems, the present invention is a box-shaped terminal block with lead wire holes for drawing out lead wires on the bottom surface. A terminal block having a structure in which a projecting piece having a projection is integrally formed and a slit is processed above the center of another side wall is provided.

That is, the present invention is an insulative box-shaped terminal block whose inner size is approximately equal to the outer size of a toroidal coil with an open top surface, and the diameter of the toroidal coil of this terminal block is A protrusion with the same thickness as the side wall extends at the center of the upper ends of the opposing side walls, which are in the same direction as the side wall. A trapezoidal protrusion is provided at the same height, a slit is machined downward from the opening in the center of the other side wall of the terminal block, and a through hole corresponding to the winding end of the toroidal coil is provided on the lower surface of the terminal block. It is a terminal block for the toroidal coil.

[0006]

[Action]

 The protrusion of the protrusion provided on the upper end of the side wall of the terminal block fits into the through hole at the center of the toroidal coil, and the toroidal coil is held by sandwiching the side wall of the terminal block and the protrusion from both sides. Also, when the toroidal coil is installed in the terminal block by the slits provided on the other side wall of the terminal block, it is necessary to widen it by the protrusion of the protrusion of the projecting piece. Can be easily incorporated without damage.

[0007]

【Example】

 An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is an external perspective view showing a terminal block for a toroidal coil according to an embodiment of the present invention, and FIG. 2 is a diagram illustrating an assembling process of a toroidal coil with a terminal block using the terminal block of the embodiment shown in FIG. 2A shows a state before assembly, FIG. 2B shows a state in which the toroidal coil is pushed into the terminal block, and FIG. 2C shows a completed state.

As shown in FIG. 1, the terminal block 2 of the present invention is made of a hollow box-shaped insulating material, and is almost equal to the cross-sectional shape of the toroidal coil, and the depth is less than half the outer diameter of the toroidal coil. The shallow recess is machined. A protrusion 4 having a truncated cone-shaped protrusion 3 formed on one inner surface is integrally formed at the center of the side wall corresponding to the radial length of the toroidal coil. Two lead wire holes 12 penetrate through the bottom surface. On the other side wall of the protrusion 4 which is not processed, a cut (slit 9) is processed from the upper part of the central part to the middle part of the lower part.

Next, a process of assembling a toroidal coil with a terminal block using the terminal block of the embodiment shown in FIG. 1 will be described with reference to FIG. As shown in FIG. 2 (a), the lead wires 5 of the toroidal coil 1 are aligned downward, and as shown in FIG. 2 (b), the lead wires 5 of the toroidal coil 1 are connected to the lead wire holes of the terminal block 2. While inserting into 12, the protrusion 9 is opened by pushing the toroidal coil by pushing the toroidal coil so that the toroidal coil can pass through against the elasticity of the slit 9 and the side wall and the protruding piece 4 provided in the terminal block 2. As shown in (), the protrusion 3 is fitted into the central through hole of the toroidal coil 1, and the toroidal coil is fixed to the terminal block. Compared to the conventional method using adhesive, the process is simpler, less man-hours are required, and there is no stain due to adhesive. Furthermore, if a defect in the toroidal coil is discovered, it can be easily reworked, so an economical and reliable coil was obtained.

[0010]

[Effect of the device]

 As described above, according to the present invention, the toroidal coil with terminal block can be assembled without using an adhesive, which simplifies the manufacturing process, facilitates reworking, and improves the working environment, which makes it cheaper to manufacture. A product with high reliability and high commercial value can be obtained without any dirt from the adhesive.

[Brief description of drawings]

FIG. 1 is an external perspective view showing a terminal block according to an embodiment of the present invention.

2 is an explanatory view illustrating an assembling process of a toroidal coil with a terminal block using the terminal block of the embodiment shown in FIG.
2A shows a state before assembly, FIG. 2B shows a state in which the toroidal coil is pushed into the terminal block, and FIG. 2C shows a completed state.

3A and 3B are explanatory views for explaining an assembling process of a toroidal coil with a terminal block using an example of a conventional toroidal coil terminal block, FIG. 3A shows a state before assembly, and FIG. 3B is a terminal block. Fig. 3 shows the state where the toroidal coil is pushed in.
(C) shows a completed state.

[Explanation of symbols]

 1 Toroidal coil 2 Terminal block 3 Projection 4 Projection piece 5 Lead wire 6 Winding 7 Adhesive 8 Adhesive supply device 9 Slit 10 Magnetic core 11 Terminal block 12 Lead wire hole 13 Recess

Claims (1)

[Scope of utility model registration request] 1. An insulative box-shaped terminal block having an inner surface of which the size is approximately equal to the outer size of a toroidal coil and an upper surface of which is open. A protrusion with the same thickness as the side wall extends in the center of the upper end, and at the center of this protrusion, the trapezoid of the trapezoid is formed at the same height as the center of the through hole of the toroidal coil when the toroidal coil is fitted into the terminal block. A protrusion is provided, and a slit is machined downward from the opening surface in the center of the other side wall of the terminal block.
A terminal block for a toroidal coil that has through holes on the bottom surface of the terminal block that correspond to the winding ends of the toroidal coil.