JP3293937B2 - Base for thin transformer - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a thin transformer base.

[0002]

2. Description of the Related Art As shown in FIG. 4, a conductor forming a primary coil and a secondary coil of a conventional thin transformer has a rectangular shape with one end opened to form a terminal 9 and a plate-shaped interlayer. As shown in FIG. 5, the base of the thin transformer includes a core middle foot insulating flange 4 having a void of the core insertion portion 3 integrated with the core center guide flange 41, as shown in FIG. , A core guide groove 7, an outer flange 8, a mounting terminal 1, and a knot terminal 2. The copper plate 6 having the two E-type ferrite cores, the primary coil, and the terminal 9 of the secondary coil is incorporated in the base of the thin transformer. The base of the conventional thin transformer is connected to the core middle foot insulating flange 4 and the core center guide flange 41 to be integrated and has a rectangular cylindrical shape, but a copper plate of a primary coil and a secondary coil is mounted. The core middle foot insulating flange 4, the core center guide flange 41, and the outer flange 8 are provided vertically upright from the upper surface of the base.

[0003]

In the conventional thin transformer base, when the copper plates of the primary coil and the secondary coil are mounted, the mounting hole 10 at the center of the copper plate and the core insertion portion at the center of the base are not connected. To shift the position or become tighter 1
There is a problem that it is difficult to mount the copper plates of the secondary coil and the secondary coil. The present invention, in order to solve these problems,
Although the rectangular tubular core midfoot insulating flange 4 and the core center guide flange 41 forming the core insertion portion were integrated, the cylindrical rectangular midfoot insulating flange 4 and the core center guide flange 41 formed a cylindrical rectangular shape. The corners of the four corners are cut off, and the core middle foot insulating flange 4 and the core center guide flange 41 on each of the two sides are inclined toward the inside of the core insertion portion, so that the primary coils 2
It is an object of the present invention to provide a thin transformer base on which a copper plate of a next coil can be easily mounted.

[0004]

SUMMARY OF THE INVENTION The present invention is designed to facilitate the work of inserting the copper plates of the primary coil and the secondary coil from the upper surface of the base. The corners of the four corners connected to the coil are cut off, and the core middle foot insulating flange and the core center guide flange located between the mounting holes of the copper plate of the coil are inclined inward. That is, the present invention provides a core middle foot insulating flange (4) having a void portion of a core insertion portion (3) and a core center guide flange (41).
And a core guide groove (7), an outer flange (8), a mounting terminal (1), and a tangled terminal (2). Are cut off at the four corners of the rectangular tubular core middle foot insulating flange (4) and the core center guide flange (41) that form the core middle foot insulating flange (4). ) And the core center guide flange (41) are inclined toward the inside of the core insertion portion.

[0005]

[Function] When the copper plates of the primary coil and the secondary coil are mounted on the base of the thin transformer, since the conventional outer flange, the core middle foot insulating flange and the core center guide flange stand vertically, the copper plate is mounted. Cut the four corners of the core middle foot insulation flange and core center guide flange in a rectangular cylindrical shape so that the four sides of the core middle foot insulation flange and core center guide flange are inclined inward of the core insertion part. In addition, the gap between the outer flange, the core middle foot insulating flange, and the core center guide flange is widened to make it easy to mount a copper plate.

[0006]

FIG. 1 is a perspective view showing one embodiment of a base for a thin transformer according to the present invention. FIG. 2 is a perspective view of a completed thin transformer of the present invention. FIG. 3 is an explanatory view showing a state where the copper plates of the primary coil and the secondary coil are mounted on the thin transformer bases of the prior art and the present invention. FIG. 3A is an explanatory view of attaching a copper plate to a conventional base, FIG. 3B is an explanatory view of attaching a copper plate to the base of the present invention, and FIG. It is explanatory drawing at the time of stacking a copper plate on the base of this invention, and attaching a core.

FIG. 1 shows a thin transformer base according to the present invention. That is, a core guide groove 7, an outer flange 8, a core insertion portion 3, a core middle foot insulating flange 4, a core center guide flange 41, a mounting terminal 1, and a tying terminal 2 are provided on a rectangular plate-like base. This is a base for thin transformers.

Conventionally, the core middle foot insulating flange 4 and the core center guide flange 41 are formed integrally and have a rectangular shape when viewed from above. The middle foot of the E-type ferrite core, which is a soft magnetic material, is attached to the rectangular cylindrical core insertion portion 3, and forms a primary coil and a secondary coil as shown in FIG. When the copper plate 6 of the conductor is mounted on the base of the thin transformer via the mounting hole 10, the copper plate 6 is mounted in a laminated manner, and it is difficult for the copper plate 6 to enter. It is intended to be easy to attach to the base. In order to make it easy to mount the copper plate of the conductor forming the primary coil and the secondary coil,
Since the copper plate is mounted between the outer flange 8, the core middle foot insulating flange 4, and the core center guide flange 41, the distance between the upper surface of the outer flange 8, the core middle foot insulating flange 4, and the core center guide flange 41 is reduced. Good to spread.

The core middle foot insulating flange 4 and the core center guide flange 41
Is a rectangular tubular shape and integrated. In the base of the thin transformer of the present invention, the core middle foot insulating flange 4 and the core center guide flange 41 forming the core insertion portion 3 are separated at four rectangular cylindrical corners. The four sides of the central guide flange 41 have a certain inclination inward of the void portion of the core insertion portion.

[0010] Since the core middle foot insulating flange 4 and the core center guide flange 41 of the base of the thin transformer of the present invention are inclined inward, the E-shaped ferrite core is inserted into the core guide groove and the core of the thin transformer base. When several copper plates for the primary coil and the secondary coil are mounted,
Since the upper part of the core middle foot insulating flange 4 is open, the copper plate can be easily mounted, and when the core 5 is mounted on the core insertion part 3 as shown in FIG. Since the core middle foot insulating flange 4 is approximately the same as the width of the middle foot of the ferrite core 5 and the dimension of the core insertion portion, the inclined portion of the dotted line rises in the direction of the arrow, and the core middle foot insulating flange 4 is substantially The copper plates of the primary and secondary coils are properly mounted, as they stand upright.

FIG. 3 is a diagram illustrating the state described above so that the base, the copper plate, and the core of the conventional thin transformer are easily understood.
It is. FIG. 3A shows a state in which three copper plates 6 are to be mounted on the base of a conventional thin transformer showing a core insertion part 3, a core middle foot insulating flange 8 and an outer flange,
Although three copper plates 6 for the primary coil and the secondary coil are to be mounted in the figure, the second copper plate cannot be mounted because the second copper plate is caught on the core middle insulating flange 4.

FIG. 3 (b) shows a base of the thin transformer of the present invention. Since the core middle foot insulating flange 4 is inclined inside the core insertion portion 3, three copper plates 6 are mounted one upon another. At this time, even if a slight level difference occurs when the copper plates 6 are stacked, they can be smoothly mounted between the core middle foot insulating flange 4 and the outer flange 8.

Further, as shown in FIG. 3 (c), when the ferrite core E-shaped middle foot 11 and outer foot 12 are mounted on the base of the thin transformer of the present invention, the core is inclined by the middle foot. The core middle foot insulating flange 4 will be upright substantially vertically, and will be modified so that the copper plate 6 is properly mounted without being disturbed.

FIG. 2 is a perspective view of a thin type transformer in which a copper plate 6 and a core 5 of primary and secondary coils are mounted using a base having a core middle foot insulating flange 4 and a core center guide flange 41 for a thin transformer according to the present invention. This is a completed transformer.

[0015]

As described above, according to the present invention, when the copper plate of the coil is inserted, the operation of inserting the copper plate of the coil from the upper surface of the base of the thin transformer, which was difficult to insert, becomes easy. It is possible to provide a thin transformer base that can reduce the time and can easily fix the copper plate of the coil.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a base for a thin transformer of the present invention.

FIG. 2 is a perspective view of a completed product of the thin transformer of the present invention.

FIG. 3 is an explanatory view showing a state in which a copper plate of a primary coil and a secondary coil is mounted on a base of a thin transformer according to the conventional art and the present invention. FIG. 3A is an explanatory view showing an attempt to mount a copper plate on a conventional base. FIG. 3B is an explanatory view showing an attempt to mount a copper plate on the base of the present invention. FIG. 3C is an explanatory view when a copper plate is stacked on the base of the present invention and a core is mounted.

FIG. 4 is an exploded perspective view of a conventional thin transformer.

FIG. 5 is a perspective view of a base of a conventional thin transformer.

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 mounting terminal 2 tie terminal 3 core insertion portion 4 core middle foot insulating flange 5 core 6 copper plate 7 core guide groove 8 outer flange 9 terminal 10 mounting hole 11 middle foot 12 outer foot 41 core center guide flange

Claims (1)

(57) [Claims] 1. A core middle foot insulating flange (4) having a void in a core insertion portion (3), a core center guide flange (41), a core guide groove (7), an outer flange (8), Mounting terminal (1)
And a rectangular plate-shaped thin transformer base comprising a helmet terminal (2) and a rectangular tubular core middle foot insulating flange (4) and a core center guide flange forming a core insertion portion (3). Cut the corners of the four corners of the rectangular tube with (41), and insulate the core middle foot insulating flange (4) and the core center guide flange (4) on each of the two sides.
1) The base for a thin transformer, wherein the base and the base are inclined toward the inside of the core insertion portion.