JPS582024Y2 - Container for oil-filled electrical equipment - Google Patents

Description

[Detailed explanation of the idea] This invention relates to containers for oil-filled electrical equipment.

Large-capacity capacitors, reactors, and other electrical equipment are stored in containers with insulating oil.

Generally, this type of container is manufactured by joining container parts that have been processed into a desired shape, and then fixing the joined parts together by welding.

By the way, the manufacturing cost of this type of container can be roughly divided into material cost and processing cost.

There is almost no difference in material cost if the volume of the container is the same, but since processing cost corresponds to the assembled shape of the container, the shorter the time required for processing, the lower the manufacturing cost.

The majority of this processing cost is accounted for by welding the above-mentioned container portion.

Therefore, the shorter the welding length, the lower the manufacturing cost.

1゛ The purpose of this invention is to construct a container with a short welding point.

Figure 2 shows a conventional container, and as can be understood from its exploded view (Figure 5), there are a pair of body parts 2 that are U-shaped in cross section.
1.22, a flange 1 ji part 23 hollowed out in a rectangular shape,
It consists of a flat bottom plate part 24, and each side edge 21a, 22a of the body part 21, 22 are brought together and welded,
Also, a flange portion 23 is placed on each upper end of the body portion 21, 22,
The upper edges 21 , b , 22 b and the flange portion 23
By welding the inner edges 23a of the body parts 21 and 22, and further welding the lower edges 21C and 22C of the body parts 21 and 22 to the peripheral edge 24a of the bottom plate part 24, each part is integrated into a container.

If the length of the bottom plate is Lm, the width is Wm, and the depth of the container is Hm, the total weld length M2 is M2=2X2(L+W)+2H(m
) becomes.

Another conventional container shown in Figure 3 is an exploded view (Figure 6).
As can be understood from the above, two flat plate portions 31.3 of the same shape
2, another two flat plate parts 33 and 34 of the same shape, and a flat bottom plate part 35, and the upper ends of each of the flat plate parts 31 to 34 are bent to form flange parts 31a and 34a.

And each side edge 33b, 33 of the flat plate part 33, 34
C, 34b, 34C to the flat plate part 31.32, and its respective side edges 31b, 31c, 32b, 32c
Weld the parts that go inward by a length corresponding to the width of the flange part, and then weld each flat plate part 31 to
By welding each of the lower edges 31 d to 34 d of the container 24 and the peripheral edge 35 a of the bottom plate portion 35, the respective parts are integrated into a container.

According to this configuration, if the length and width of the bottom plate portion 35 and the depth of the container are the same as those shown in FIG.
3 becomes M3=2(L+W)+4H+4B (m).

However, B is the width (m) of the flange portions 31 a to 34 a.

Figure 1 shows the container according to this invention, and its exploded view (Fig.
As can be understood from the figure, it consists of a pair of body parts 11.12 bent into the same L-shape, a flat bottom plate part 13, and a rectangular flange part 14.15.

Each body part 11.12 has flat plate parts 11 A, 11 B and 1
2A and 12B, the flat plate parts 11A and 12A and the flat plate parts 11B and 12B have the same shape, respectively.
The upper edges of each body part 11.12 are bent to form flange parts 11a, 11b, 12a, and 12b.

Then, one side edge 11C of the body part 11 is connected to the body part 12.
2. Align the other side edge 12C of the body part 12 with the body part 11 at a point that extends inward from one side edge 12d by a length corresponding to the width of the flange part, and then attach the other side edge 12C of the body part 12 to the body part 11 at the other side edge. Align it at a point that extends inward from the edge 11d by a length corresponding to the width of the flange portion.

Each abutting portion (including the abutting portion of each flange portion).

) to weld.

Also, both flange parts 11 a, 11 b and 12 a, 1
2. Place the flange parts 14 and 15 in the space between b and weld.

Furthermore, the peripheral edge 13a of the bottom plate part 13 and the lower end edges 1''le, 12e of each body part 11.12 are welded.

Through the above steps, the container shown in FIG. 1 is completed.

Here, if the vertical and horizontal dimensions of the bottom plate part 13 and the depth of the container are the same as the configuration shown in Figures 2 and 3, the total weld length M1 is M, = 2 (L + W) + 6B + 2H (m). Become.

Here, we will discuss each total weld length by giving specific numerical values.

Now 6.6 KV, three phase 50 H2,500KVA (7)
When manufacturing a container for a concertina, L = approximately 0.7
m, W=approx. 0.6m, H=approx. 0.7m, B=approx. 0.0
It must be 5m.

From now on, the total weld length M29M with the configuration shown in Figures 2 and 3
3 is M2=6.61T1. M3=5.6 In.

On the other hand, the total weld length M1 with the configuration shown in Figure 1 is M1=4.3 m becomes.

That is, compared to the configuration in FIG. 1, the configuration in FIG. 2 has 1.
53 times, and 1.3 times in the configuration shown in FIG. 3, which means that the welding length is reduced by this much in the configuration shown in FIG.

This shortening of the weld length also means that there is less chance of oil leaking from the welding location, and the risk of oil leakage can be reduced accordingly.

As detailed above, according to this invention, when manufacturing containers for oil-filled electrical equipment, the welding length can be made shorter than that of conventional configurations, which reduces processing costs and increases the welding length. By shortening the time, there is an effect that there is less chance of oil leaking from the welding area.

[Brief explanation of drawings]

Figure 1 is a perspective view showing an embodiment of this invention, Figures 2 and 3.
The figure is a conventional perspective view, Figure 4 is an exploded perspective view of Figure 1, and Figure 5 is an exploded perspective view of Figure 1.
6 are exploded perspective views of FIGS. 2 and 3. 11.12... Body part, 11 A, 11 B,
12 A, 12 B... Flat plate part, 11 a,
11 b, 12 a, 12 b...7 run part, 11 c, 11 d, 12 c, 12 d
......-Side edge, lle, 12e...Lower edge, 13...Bottom plate portion, 13a...Periphery, 14°15... flange part.

Claims (1)

[Scope of utility model registration request] Consisting of two flat plate parts adjacent to each other bent in an L-shape, a pair of body parts, and a flange part is formed on the side body part by bending the upper edge of each of the flat plate parts, and A rectangular flange is filled in the space between each flange of both flat plate parts and fixed by welding, and the side edge of one of the flat plate parts of each one of the body parts is 1. The other flat plate part of the other body part is brought into contact with a portion extending inward from the side edge of the flat plate part by a length corresponding to the width of the flange part, and the abutting part is fixed by welding. Further, the container for oil-filled electrical equipment is formed by abutting the peripheral edge of the bottom plate part against the lower end edge of the side body part, and fixing the abutting part by welding.