JPS5824414Y2 - transformer case - Google Patents

Description

[Detailed explanation of the invention] This invention relates to a transformer case, and its purpose is to place a transformer inside the case and fix it with casting resin, and at the same time attach a mounting bracket to the bottom of the transformer case with casting resin. It is something to do.

In a transformer in which the transformer is inserted into the transformer case and fixed with casting resin, the mounting brackets attached to the bottom of the transformer case are conventionally screwed and fixed to the transformer case.

Examples of this are shown in FIGS. 4 and 5.

1 is a transformer, 9 is a transformer case, and 10 is a mounting bracket that is attached to the bottom of the transformer case.

The transformer 1 is inserted into the transformer case 9, and is fixed by injecting a casting resin 3.

The mounting bracket 10 is fastened to the transformer case 9 by several screws 11.

As described above, since the conventional example uses several screws, dimensional deviations occur during tightening, resulting in very poor workability.

The present invention solves the above-mentioned conventional problems, and its configuration is shown in FIGS. 1 and 2.

1 is a transformer, 2 is a transformer case, and the transformer 1 is inserted into the transformer case 2.

3 is a casting resin.

Reference numeral 4 denotes a mounting bracket having a protruding piece 5 formed on the periphery, a plurality of L-shaped bent pieces 6 provided below, and symmetrically attached to both ends of the bottom surface of the transformer case 2.

A hole 7 is formed in each L-shaped bent piece 6.

As shown in FIG. 3, a, b and b, a plurality of notches 8 are formed at the bottom edge of the transformer case 2. As shown in FIG.

This notch 8 is formed at a symmetrical position to the protruding piece 5 of the mounting bracket 4, so that they can be fitted together.

When the transformer 1 is inserted into the transformer case 2 as described above and the mounting bracket 4 is fitted to the bottom of the transformer case, when the casting resin 3 is injected and solidified, the L-shaped folding of the mounting bracket will occur at the same time as the transformer. The casting resin also enters the curved piece and the hole, and is fixed integrally by curing.

Since the present invention is configured as described above, the transformer 1 is fixed within the transformer case 2 by the casting resin 3, and the mounting bracket 4 is also fixed at the same time.

The mounting bracket 4 is attached to the end of the L-shaped bent piece 6 and (L7
Since the resin hardens integrally after being inserted through the inside, it is securely fixed, eliminates the need for screws, etc., and improves work efficiency.

Furthermore, since the transformer case and the mounting bracket are not fixed with screws, there is no dimensional deviation due to tightening the screws, and the notch 8 formed on the case when pouring the casting resin fits into the protruding piece 5 formed on the mounting bracket 4. Because they are fitted together, it is possible to achieve accurate and strong fixation without positional deviation.

[Brief explanation of drawings]

Figure 1 is a perspective view of the transformer fixed in the transformer case of the present invention as seen from the bottom side, Figure 2 is a cross-sectional view of the same, and Figure 3 is
Figures 4 and 5 are a perspective view and a cross-sectional view of a mounting bracket and a perspective view of a main part of a transformer case, and Figures 4 and 5 are a perspective view and a cross-sectional view of a conventional transformer. 1...Transformer, 2...Transformer case, 3...Cast resin, 4...Mounting bracket, 5...Protruding piece, 6... L-shaped bent piece, 7... Hole, 8... Notch.

Claims (1)

[Scope of utility model registration request] In a transformer in which the transformer is inserted into the transformer case and the casting resin is cured and fixed, a plurality of protruding pieces are formed on the periphery of the mounting bracket, and a plurality of L-shaped new pieces with holes are provided below. A notch is formed on the bottom edge of the transformer case at a position corresponding to the protruding piece, and the bottom face of the transformer case and the mounting bracket are attached so that the protruding piece fits into the notch, and the fitting is inserted into the transformer case. A transformer case characterized by being fixed by injecting and hardening a casting resin so that one end of the L-shaped bend is buried together with the inserted transformer.