JPS5926585Y2 - soundproof transformer - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a soundproof transformer, and particularly to the structure of a part of its soundproof cover.

Transformers installed in urban areas generally have a structure in which a soundproof wall surrounds the transformer to prevent noise.

Normally, in order to minimize sound leakage from a soundproof transformer, a soundproof cover is attached to the top of the transformer as much as possible.

Fig. 1 is a plan view of a general soundproof transformer, and Fig. 2 is a partial sectional view thereof. It is surrounded by walls 4.

At this time, a sound rubber 5 for blocking vibrations and noise of the transformer body 2 is attached between the soundproof cover 3 and the soundproof wall 4.

Further, since the soundproof cover 3 is generally divided into parts for transportation, handling, etc., a patch plate 6 is attached to the joint in order to minimize sound leakage at the joint.

Note that 7 in the figure indicates a bushing.

By the way, conventionally, when attaching the backing plate 6 by welding, the insulating rubber 5 burns and deforms due to the welding heat, increasing sound leakage. A flap plate 8 was attached to the cover 3 in advance to prevent the rubber insulator 5 from burning due to the heat generated when welding the area 9.

For this reason, in the soundproofing transformer with the above conventional configuration, the soundproofing wall 4 is lowered by the dimension 10 due to the shelf board 8, so the space for pasting the sound absorbing material becomes smaller, and the soundproofing effect is reduced.
There is a drawback that it takes time and effort to attach the shelf 8.

The object of the present invention is to provide a soundproof transformer with a simple structure and good soundproofing performance.

Hereinafter, the present invention will be explained with reference to the embodiments shown in the drawings.

FIG. 4 shows a partial configuration diagram of a soundproof transformer according to the present invention, in which the same reference numerals as in FIG. 3 indicate the same or corresponding parts.

The configuration of this embodiment shown in the figure is different from the conventional configuration shown in FIG. In order to prevent noise from leaking and rainwater from entering, a sealing material such as a silicone rubber material or a polyurethane material is applied, thereby eliminating the need for a shelf.

This not only simplifies the structure, but also increases the height of the soundproof wall 4, thereby improving the soundproofing effect.

As described above, according to the present invention, a soundproof transformer with a simple structure and good soundproofing performance can be obtained.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a general soundproofing transformer, Fig. 2 is a partially sectional side view thereof, Fig. 3 is a perspective view of a portion of a conventional soundproofing cover, and Fig. 4 is a perspective view of a portion of a soundproofing cover according to the present invention. It is a diagram. 2...Transformer body, 3...Soundproof cover, 4...Soundproof wall, 5...Sound rubber,
6...Packing plate, 7...Bushing, 8
・・・・・・Top board.

Claims (1)

[Scope of utility model registration request] In a soundproof transformer, a soundproofing material is interposed between a soundproofing cover covering a transformer body and a soundproofing wall, and a patch plate is attached to the joint of the soundproofing cover, and the patch plate is attached by partially welding. In addition, a soundproof transformer characterized in that a sealing material is applied to the non-welded parts.