JPS61248405A - Apparatus for fitting power transformer - Google Patents

Abstract

PURPOSE:To improve a fitting strength by a method wherein, when a power transformer, directly attached to a printed circuit board, is fixed to a casing itself, a casing cover is also tightened together by screwing. CONSTITUTION:An apparatus for fitting a power transformer 3, attached directly to a printed circuit board 4, to a casing itself 2 is fixed by a tapping screw 5 with the positioning hole 1a of a casing cover 1, the positioning hole 3a of the power transformer 3 and the screw hole 2a of the cubicle itself 2. The cover 1 is fixed firmly to the casing itself 2 by additional tapping screw 6. With this constitution, a fitting strength can be improved and a load applied to the circuit board 4 by dropping can be reduced and damage can be avoided.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a power transformer mounting device used in electronic equipment such as CATV equipment.

BACKGROUND OF THE INVENTION Conventionally, power transformers in this type of power transformer mounting apparatus have been directly mounted on printed circuit boards to save labor and labor. Since the power transformer is heavy, it had to be fixed separately to the main body of the casing, and the method for doing so was to use special screws.

An example of the above-mentioned conventional power transformer mounting device will be described below with reference to the drawings.

FIG. 4 shows an exploded perspective view of essential parts of a conventional power transformer mounting device. FIG. 6 shows a rear perspective view thereof, and FIG. 6 shows a sectional view of a main part. In Figures 4 to 6, 7 is the housing cover, 8 is the housing body, 8
9 is a positioning hole, 9 is a power transformer directly attached to the printed circuit board, 9a is a screw hole, 1o is a printed circuit board, and 11 is a tapping screw for fixing the power transformer to the main body of the casing.

The operation of the power transformer mounting device configured as above will be described below.

First, the power transformer 9 is directly attached to the printed circuit board 10.
In the device for attaching the
1 through the positioning hole 8a of the housing body 8 and the screw hole 9a of the power transformer 9, and the housing cover 7
had no involvement in the fixation.

Problems to be Solved by the Invention However, with the above-mentioned configuration, the mounting strength is insufficient, so when the printed circuit board is dropped, the printed circuit board is often damaged, resulting in defects.

In view of the above problems, the present invention provides a power transformer mounting device that increases the mounting strength and prevents damage to the printed circuit board.

Means for Solving the Problems In order to solve the above problems, the power transformer mounting device of the present invention is designed to fix the power transformer directly attached to the printed circuit board to the housing body by screwing the housing cover together. It has a structure that allows it to be tightened.

Function The present invention further enhances the mounting strength by integrally fixing the power transformer, the housing body, and the housing cover with the above-described configuration.

Embodiment Hereinafter, a power transformer mounting device according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows an exploded perspective view of a power transformer mounting device in an embodiment of the present invention. Figure 2 is x- in Figure 3.
It shows an x-sectional view, and FIG. 3 shows a rear perspective view. In Figs. 1 to 3, 1 is a housing cover;
1a is the positioning hole of the housing cover, 2 is the housing body, 2a is the screw hole, 3 is the power transformer directly attached to the printed circuit board, 3a is the positioning hole of the power supply driver 2a, 4 is the printed circuit board, 5 is the power transformer These are tapping screws for fixing 2a, the housing body 2, and the housing cover 1.

The operation of the power transformer mounting device configured as above will be described below.

In a device for attaching a power transformer 3 directly attached to a printed circuit board 4 to a housing body 2, tapping screws 6 are used to connect the positioning hole 1a of the housing cover 1, the positioning hole 3a of the power transformer 3, and the screw hole 2a of the housing body 2. Fixed via. In addition, the housing cover 1 and the housing body 2 are firmly fixed by tapping screws 6.

As described above, according to this embodiment, the power transformer 3 directly attached to the casing cover 1, casing main body 2, and printed circuit board 4 are screwed together, thereby increasing the mounting strength and preventing the printed circuit board from falling. This reduces the burden on the machine and prevents damage. In addition, the housing body 2 and the housing cover 1 were previously fixed using only the tapping screws 6, but by fixing the power transformer 3 to the housing body 2 using the tapping screws 6, it is possible to mount both more securely. . Furthermore, even if the power transformer is installed in an unbalanced position and varies from side to side, it can be installed without any problem.

In addition, in the past, the heat generated by the power transformer was directly transmitted to the casing body and the attached tapping screws, making it feel hot when you touched it, but in this embodiment, the casing body 2 and the tapping screws 5 are covered with the casing cover 1. This eliminates direct contact with the hands and protects it from heat.

In this embodiment, the screw holes 2a are provided in the casing body 2, but the screw holes may be provided in the power transformer 3 and the mounting order may be changed.

Effects of the Invention As described above, the present invention can increase the mounting strength by screwing the power transformer directly attached to the printed circuit board, the casing body, and the casing cover, and has a great practical effect. There is something.

[Brief explanation of drawings]

FIG. 1 is an exploded side view of a power transformer mounting device according to an embodiment of the present invention, FIG. 2 is a sectional view taken along the line X-X in FIG. 4 is an exploded perspective view of the main parts of the conventional example, FIG. 5 is a rear perspective view of the conventional example, and FIG. 6 is a sectional view of the main parts of the conventional example.
It is a sectional view taken along YY line in the figure. 1... Housing cover, 2... Housing body,
3...Power transformer, 4-...Printed circuit board, 6,6...Tapping screw. Name of agent: Patent attorney Toshio Nakao and 1 other person!・
・・ 5 [rice t1/gu-219, pancreatic exudate material Fig. 1
3... 1 hint, tons> 4., 7 lint difference 1 ( , 6,6y゛yb"t0゛Figure 4Figure 5

Claims (1)

[Claims] A power transformer mounting device comprising a power transformer directly attached to a printed circuit board, a casing body, and a casing cover, and the power transformer, the casing body, and the casing cover are screwed together.