JP2664009B2 - Electronic equipment - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an assembly structure of a power transformer and electronic equipment.

[0002]

2. Description of the Related Art FIG.
The power transformer indicated in “TDK PRODUCTS Parts Division” issued in November 1985 and “EPOXY RESIN” issued in April 1988 by Risho Kogyo Co., Ltd.
MOLD INSULATORS ". In the figure, 1 is an electronic device, 2 is a power transformer, 3 is an input terminal of the power transformer 2, 4 is an output terminal of the power transformer 2, 6 is an electric wire connecting the electronic device 1 and the output terminal 4 of the power transformer 2, 7 Is a housing at the ground potential, and 8 is an insulator for floating the electronic device 1 from the housing 7 at the ground potential.

In the above-described configuration, the input terminal 3 of the power transformer 2 and the housing 7 are both on the low voltage side and no insulation distance is required. However, the connection between the input terminal 3 and the output terminal 4 of the power transformer 2 is not necessary. Since the output terminal 4 of the power transformer 2 is on the high voltage side, an insulation distance is required, and between the electronic device 1 and the housing 7, an insulation distance is required since the electronic device 1 is on the high voltage side. Also, an electronic device 1 and a power transformer 2
Are on the high voltage side, and no insulation distance is required. An insulation distance is secured between the input terminal 3 and the output terminal 4 of the power transformer 2 by separating the position where the power terminal 2 is pulled out, and an insulation distance is provided between the electronic device 1 and the housing 7 by floating the electronic device 1 with the insulator 8. Is secured.

[0004]

As described above, in this type of conventional electronic equipment, the electronic equipment 1 is floated on the insulator 8 in order to secure an insulation distance between the electronic equipment 1 and the housing 7, and the electronic equipment 1 is mounted thereon. Further, since the power transformer 2 is separately mounted on its side, a relatively large space for mounting both the electronic device 1 and the power transformer 2 is required.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and has as its object to reduce the size of an electronic device and to ensure an insulation distance between the electronic device and a housing.

[0006]

In an electronic apparatus according to the present invention, a power transformer is incorporated in an insulator, an electronic apparatus is mounted on the insulator, and an input terminal and an output terminal of the power transformer are externally connected. It is one that can be connected.

[0007]

In the case of an insulator having a built-in power transformer as described above, the input terminal of the transformer is arranged near the lower housing, and the output terminal is arranged on the upper side. Input terminal and the housing) and the high-voltage side (output terminal of the transformer and the electronic device) are physically separated.

[0008]

【Example】

Embodiment 1 FIG. FIG. 1 shows an embodiment of the present invention. In FIG. 1, 1 is an electronic device, 2 is a power transformer, 3 is an input terminal of the power transformer 2, 4 is an output terminal of the power transformer 2, and 5 is a power transformer. 2 is a wire connecting the electronic device 1 and the output terminal 4 of the power transformer 2;
Is a housing at ground potential. In addition, the input terminal and the output terminal are exposed outside so that an electric wire can be connected.

That is, in this structure, the electronic device 1 is mounted on the insulator 5 having the built-in power transformer 2, and the electronic device 1 is connected to the output terminal 4 of the power transformer 2 by the electric wire 6. The device is assembled. The insulation distance between the electronic device 1 and the housing 7 is the creepage distance of the fold of the insulator 5.

Embodiment 2 FIG. In the above embodiment, the case where the size of all the folds of the insulator is the same is shown. However, as shown in FIG. 2, the shape of the fold of the insulator may be smaller at the lower side and larger at the upper side. The same effect as the example is achieved.

Embodiment 3 FIG. Further, as shown in FIG. 3, one portion of the insulator may be formed larger than the other folds, and the same effect as in the above embodiment can be obtained.

Embodiment 4 FIG. Further, as shown in FIG. 4, the insulator fold may be formed so as to have a shape inclined downward and obliquely. In this case, the same effect as in the above embodiment can be obtained, and the insulator fold is provided with dust. There is no accumulation.

Embodiment 5 FIG. In the case of the present invention, since the input / output terminals of the power transformer are outside, the insulation distance between the input / output terminals is shorter than the insulation distance between the electronic device and the housing that is originally required. Therefore, in order to secure the same insulation distance between the input and output terminals as between the electronic device and the housing, the pleats may be enlarged. However, if this is done, the whole becomes large.・ Figure 6
As shown in (1), a part of the fold of the insulator may be formed as an elliptical protrusion.

[0014]

As described above, according to the present invention, since the power transformer is built in the insulator, the space for mounting the electronic equipment can be reduced, and the insulation distance between the electronic equipment and the housing can be sufficiently ensured.

[Brief description of the drawings]

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

FIG. 2 is a front view of an electronic apparatus according to a second embodiment of the present invention.

FIG. 3 is a front view of an electronic apparatus according to a third embodiment of the present invention.

FIG. 4 is a front view of an electronic apparatus according to a fourth embodiment of the present invention.

FIG. 5 is a front view of an electronic apparatus according to a fifth embodiment of the present invention.

6 is a sectional view taken along line AA of FIG.

FIG. 7 is a front view showing a conventional electronic device.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Electronic equipment 2 Power transformer 3 Input terminal 4 Output terminal 5 Insulator 6 Electric wire 7 Housing of earth potential

Claims (1)

(57) [Claims] An insulator having a built-in power transformer is mounted and mounted on a housing having a ground potential, and an electronic device is mounted on the insulator, and externally connected to a lower end and an upper end of the power transformer. An electronic apparatus, wherein possible input terminals and output terminals are arranged.