JP2594759Y2 - Wave case transformer - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wave case transformer in which a transformer body is housed in a wave case having a side wall made of a steel plate formed by corrugation so that peaks and valleys are alternately arranged. Things.

[0002]

2. Description of the Related Art In general, in a power transformer, a nameplate indicating ratings of the transformer is attached to a side surface of a case. In the case of a transformer using a wave case, a mounting seat is welded to the side surface of the wave case, and a nameplate is mounted on the mounting seat. In some cases, the temperature indicator of the oil thermometer is attached to a similar attachment seat.

[0003] In the case of standard specification transformers, a production system is adopted in which a predetermined number of transformers are expected to be produced and finished products are always kept in stock. In this case, a nameplate and a temperature display are required by the majority of customers. To the standard mounting position (for example, the front of the case). However, depending on the customer, it may be required to change the mounting position of a nameplate or the like at the time of actual delivery.

Heretofore, when a change in the mounting position of a nameplate or the like has been requested, the following work has been required.

[0005] First, the oil is extracted from the stock to be transferred and the contents are taken out. Remove the mounting seat that is welded to the case and remove the paint on the new mounting location of the mounting seat. Weld the mounting seat to a new location. Put the contents in the case again and apply repair painting.

[0006]

Conventionally, mounting seats for mounting accessories such as a nameplate and a temperature display of an oil thermometer are conventionally welded to a case, and therefore, when the mounting position of the mounting seat is required to be changed. In this case, it was necessary to re-weld the mounting seat, and at that time, the troublesome work as described above was required. for that reason,
Not only did transformer shipments fall short of taking advantage of make-to-stock production, but transformer production costs were unavoidable.

The mounting seat is fixed to the case with bolts.
It is possible to fix the mounting seat with bolts
When changing the mounting position of the nameplate, etc.
At the same time as re-drilling the screw holes for screwing the bolts
In addition, the screws used to fix the mounting
Because it is necessary to repair and paint to close the hole,
The same problem as when the mounting seat was attached by welding
Inevitable to happen.

SUMMARY OF THE INVENTION An object of the present invention is to provide a wave case transformer capable of easily changing an attachment position of an accessory such as a nameplate.

[0009]

SUMMARY OF THE INVENTION According to the present invention, a transformer body is housed in a wave case having a corrugated portion formed on a side surface so that a peak portion and a valley portion are alternately arranged. The present invention relates to a wave case transformer in which accessories such as a nameplate are attached to a mounting seat fixed to a side surface of the wave case. In the present invention, a corrugated case in which a bar-shaped reinforcing material is disposed so as to surround the corrugated formed portion over the entire circumference of the case is used. A fixing bracket of a size that can be arranged in the valley of the corrugated molded portion is provided on the back surface of the mounting seat, and the fixing bracket is located in a predetermined valley of the corrugated molded portion, and the fixing metal and the mounting seat are provided. The mounting seat is fixed to the corrugated case with the reinforcing material sandwiched between the back surface and the back surface.

[0010]

When the mounting seat is fixed to the corrugated case by the fixing metal arranged in the valley of the corrugated molded portion using the reinforcing material as described above, the mounting position of the accessory such as the nameplate from the customer. If you are asked to change the
Processing of screw holes for screwing bolts that fix the mounting seat
Repair to redo the operation or close the screw holes that are no longer needed
It is possible to easily change the mounting position of the nameplate or the like without performing the operation .

Further , as described above, the corrugated molded portion of the corrugated case.
Is provided so as to surround the entire circumference of the case.
If you use a reinforcing material to fix the mounting seat,
Not only on the front, rear, left and right sides, but also on the corners of the case
Since the mounting seat can be fixed, the mounting position of the
The degree of freedom in selecting the position can be increased, and
Can respond more widely.

[0012]

1 and 2 show an embodiment of the present invention. In these figures, reference numeral 1 denotes a corrugated case having a corrugated molded portion 1a on a side surface, in which a transformer main body is provided. It is stored together with an appropriate insulating medium. In this example, it is assumed that the insulating medium is oil. The corrugated molded portion 1a has a peak m
Corrugated sheet 2 so that valleys and valleys v are alternately arranged
The lower end of the corrugated plate 2 is welded to a lower frame 3 having a bottom plate, and the upper end is welded to an upper frame 4.
The upper end of the upper frame 4 is provided with a flange 4a for attaching a cover plate. Both ends in the width direction (vertical direction) of each peak m of the corrugated sheet 2 are closed by welding, and an oil passage is formed in each peak.

In order to reinforce the corrugated molded portion 1a of the corrugated case, a round bar-shaped reinforcing member 5 is arranged so as to surround the corrugated molded portion 1a over the entire circumference of the case. It is welded to the top of each peak m of the portion 1a.

6 is for attaching accessories such as a nameplate,
1 and 2, the mounting seat 6 is mounted on the front surface 1A of the corrugated case. As shown in FIG. 3, the mounting seat 6 is formed by dropping two corners at both ends of a rectangular metal plate, and on its back surface, as shown in FIGS. A fixing bracket 7 of a size that can be arranged in the valley v of the portion 1a is attached.

The fixing member 7 used in this embodiment has an arcuate portion 7a formed in an arc shape so as to extend along substantially a half of the outer periphery of the reinforcing member 5, and opposing each other from both ends of the arcuate portion 7a. And a pair of arms 7b and 7c extended in the direction of
The arm portions 7b and 7c are provided with screw holes, respectively.
The fixing brackets 7 are arranged at both ends of the mounting seat 6, respectively, and the arm portions 7b and 7c respectively face the mounting seat 6 in a state where the respective arc-shaped portions 7a are arranged along the outer periphery of the reinforcing member 5. It is arranged so that it enters. Then, bolts 8 and 9 that penetrate the mounting seat 6 are screwed into screw holes provided in the arms 7b and 7c, respectively, and the fixing brackets 7 are fastened to the mounting seat 6 by these bolts. Thus, the mounting seat 6 is provided between the fixing bracket 7 and the back surface of the mounting seat 5 by the reinforcing member 5.
Are fixed to the wave case 1 with the pinch therebetween.
In order to prevent the mounting seat 6 from rotating around the reinforcing member 5, spacers 11 and 12 are inserted between the upper and lower surfaces of the rear surface of the mounting seat 6 and the ridge m of the corrugated molded portion. These spacers are fixed to the mounting seat 6 by bonding or the like.

On the surface of the mounting seat 6, a nameplate 13 indicating the rating of the transformer and the like is arranged, and the nameplate 13 is fixed to the mounting seat 6 by a fixing device 14 such as a screw or a rivet.

As described above, when the mounting member 6 is fixed to the corrugated case 1 by the fixing member 7 disposed in the valley v of the corrugated molded portion 1a using the reinforcing member 5, welding
Or screw the bolts to fix the mounting seat
The mounting seat 6 can be mounted without providing a screw hole in the case .

The reinforcing member 5 surrounds the entire periphery of the case.
When configured as described above,
Not only on the front, rear, left and right sides, but also on the corners of the case
The mounting seat can be fixed. Therefore, collecting nameplates etc.
The degree of freedom in selecting the attachment position can be increased, and
Can respond more widely.

In the above embodiment, the mounting seat 6 is
Is attached to the front 1A, but depending on the customer,
As shown by the chain line in FIG. 1, it may be required to change the attachment location of the nameplate to the right side 1B, the left side 1C, or the back 1D of the wave case. In the transformer of the present invention, since the mounting seat 6 is mounted on the reinforcing member 5 by the fixing bracket 7, the mounting position of the mounting seat 6 can be easily changed without complicated work such as re-welding.

In the above embodiment, the fixing bracket 7 is fastened to the mounting seat 6 with bolts. However, the elasticity of the fixing bracket fixed to the mounting seat 6 is utilized to make the mounting seat 6 one-touch.
May be fixed to the reinforcing member 5. For example, as shown in FIG. 6, an arc-shaped portion 7a 'and arms 7b' and 7c '.
One of the arms 7b 'of the fixing metal is welded to the mounting seat 6, and the tip of the other arm 7c' is curved away from the back surface of the mounting seat 6. The reinforcing member 5 is inserted between the fixing bracket 7 'and the mounting seat 6 from the gap between the tip end of the arm 7c' and the mounting seat 6 to reinforce the mounting seat 6 with one touch. It may be attached to the material 5. Also in this case, the mounting seat 6 is fixed to the wave case 1 in a state where the reinforcing member 5 is sandwiched between the fixing bracket 7 'and the back surface of the mounting seat.

In the above embodiment, only the name plate 13 is mounted on the mounting seat 6, but as shown in FIG. 7A, the name plate 13 'and other appropriate display plates 15 are mounted on the mounting seat 6 as shown in FIG. Alternatively, as shown in FIG. 7B, the temperature display section 16 of the oil thermometer can be attached to the attachment seat 6 together with the nameplate 13 '. Further, only the temperature display section 16 can be attached to the attachment seat 6. Normally, the temperature detecting section of the oil thermometer is inserted into the wave case, and the temperature display section 16 is connected to the temperature detecting section via a connection pipe, and displays the oil temperature detected by the temperature detecting section.

[0022]

[Effects of the Invention] As described above, according to the present invention, the mounting seat is fixed to the corrugated case by the use of the reinforcing member, which is disposed in the valley of the corrugated molded portion. If you need to change the mounting position of accessories such as the nameplate from the beginning, re-weld or replace the bolts that fix the mounting seat.
Reworking the screw holes for screwing
There is an advantage that the mounting position of the nameplate or the like can be easily changed without performing repair for closing the screw hole .

According to the present invention, a corrugated case is formed.
Rod that surrounds the part over the entire circumference of the case
Since the mounting seat is fixed using the reinforcing material of
The corners of the case as well as the front, rear, left and right sides of the case
The mounting seat can be fixed to the
The degree of freedom in the selection of
Can be obtained.

[Brief description of the drawings]

FIG. 1 is a top view showing an embodiment of the present invention.

FIG. 2 is a front view showing the embodiment of the present invention.

FIG. 3 is an enlarged front view of a main part of the embodiment of the present invention.

FIG. 4 is a side view showing a main part of the embodiment of the present invention.

FIG. 5 is an enlarged side view of a portion Z in FIG. 4;

FIG. 6 is a side view showing a main part of another embodiment of the present invention.

FIGS. 7A and 7B are front views showing different examples of accessories that can be mounted on the mounting seat.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Wave case, 1a ... Corrugated molded part, m ... Crest part, v ... Valley part, 2 ... Corrugated plate, 5 ... Reinforcement, 6 ... Mounting seat, 7 ... Fixing bracket, 8, 9 ... Bolt, 13, 13 ': Name plate, 15: Display plate, 16: Temperature display part of oil temperature gauge.

────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-62-2504 (JP, A) JP-A-60-206118 (JP, A) (58) Fields investigated (Int. Cl. ⁶ , DB name) H01F 27/00

Claims (1)

(57) [Scope of request for utility model registration] 1. A transformer body is housed in a wave case having a wave-formed portion formed on a side surface thereof so that a peak portion and a valley portion are alternately arranged and fixed to the side surface of the wave case. In a wave case transformer in which accessories such as a nameplate are attached to the seat, a bar-shaped reinforcing material is disposed so as to surround the corrugated formed portion of the wave case over the entire circumference of the case, and the reinforcing material is Welded to the corrugated part, provided on the back of the mounting seat, a fixing bracket of a size that can be arranged in the valley of the corrugated part, the mounting seat, the fixing bracket in the predetermined valley A wave case transformer, wherein the wave case transformer is fixed to the wave case in a state where the reinforcing material is sandwiched between the fixing bracket and the back surface of the mounting seat.