JPH0963856A - Transformer - Google Patents

Abstract

PROBLEM TO BE SOLVED: To set a transformer body having a large height dimension smoothly in a transformer enclosure and prevent lateral shifting. SOLUTION: A transformer body stopper 3 comprises a pair of stop parts 4, 5 disposed to clamp a pair of corner parts 2b, 2c located diagonally at the lower end part of a transformer body 2. The stop part 4 comprises two inclining wall parts 4a, 4b rising from the bottom wall part 1a of transformer enclosure and extending along two sides 2b1, 2b2 of corresponding corner part 2b. Two wall parts 4a, 4b are inclining to recede from the transformer body 2 as they are separated from the bottom wall part 1a.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transformer having a transformer body steady rest for preventing lateral shake of a transformer body housed inside a transformer container.

[0002]

2. Description of the Related Art FIGS. 3A and 3B are schematic views of a steady rest structure of a transformer body used in a conventional transformer. In these figures, 101 is an iron-made transformer container, 102 is a transformer main body housed inside the transformer container, and 103 is for preventing lateral shake of the lower end of the transformer main body. In addition, the transformer main body steady rest is fixed to the bottom wall portion 101a of the transformer container 101.
This transformer body steady rest 103 is
It is composed of a pair of steady rests 104 and 105 provided so as to sandwich a pair of corner portions 102b and 102c located on one diagonal line of the lower end portion 102a from the outside. In this example, the lower end 102a of the transformer body 102 is
Is constituted by a lower structural portion of an iron core tightening fitting that tightens the iron core of the transformer.

The pair of steady rests 104 and 105 are made of iron-made metal fittings having an L-shaped cross section. The steady rests 104 and 105 stand up from the bottom wall portion 101a of the transformer container 101 and have two sides 102b1 and 102 of the corresponding corner portions 102b and 102c.
2 extending along b2 and 102c1 and 102c2
Uprights 104a and 104b and 105a and 1
It is composed of 05b. Two standing portions 104a and 104b and 10 which constitute the steady rests 104 and 105.
5a and 105b are the bottom wall portion 101 of the transformer container 101.
It is fixed to the bottom wall portion 101a by welding in a posture orthogonal to a. In addition, the steady rest may be provided at all four corners of the lower end of the transformer body.

[0004]

When using the transformer body steady rest shown in FIG. 3, a pair of steady rest portions 104 and 105 and the lower end portion 102 of the transformer body 102 are used.
If the tolerance of the gap size formed with a is made too small, the transformer main body 1 will start from the upper opening of the transformer container 101.
There is a problem in that the workability when the 02 is suspended and inserted into the container becomes poor, and the insertion work time becomes long, and in the worst case, on-site alignment processing is required. This problem becomes more significant as the height of the transformer body 102 increases. On the other hand, if the tolerance is made too large, the inserting operation of the transformer main body becomes easy, but it becomes impossible to effectively prevent the lower end portion 102a of the transformer main body 102 from rolling laterally.

Therefore, in order to solve such a problem,
As in the transformer disclosed in Japanese Utility Model Laid-Open No. 5-66932, there is a structure in which the non-fixed side end portion of the standing portion constituting the steady portion is curved outward to facilitate insertion of the transformer body. was suggested. However, the bending process has a problem in that the number of processing steps is large and the processing cost is high. Further, merely bending the non-fixed side end of the upright portion to the outside cannot always smoothly insert the lower end of the transformer body into the space surrounded by the steady rest.

An object of the present invention is to provide a transformer which can solve the above problems.

Another object of the present invention is to provide a transformer in which the transformer body can be easily attached to the transformer container.

Another object of the present invention is to provide a transformer in which a transformer body having a large height can be smoothly mounted in a transformer container and lateral vibration can be prevented.

[0009]

SUMMARY OF THE INVENTION The present invention provides a steady rest of a transformer main body, wherein a lower end portion of the transformer main body housed inside the transformer container is fixed to a bottom wall portion of the transformer container. The transformer which is arranged inside and in which the lateral deflection of the lower end of the transformer body is prevented is targeted for improvement.

According to the present invention, the steady rest of the transformer main body is composed of a pair of steady rests provided so as to sandwich a pair of corners located on the diagonal of the lower end of the transformer main body from the outside. . One steady rest extends from the bottom wall of the transformer container and extends along two sides of the corresponding corner.
The two rising parts are inclined in such a manner that the two rising parts separate from the main body of the transformer in a predetermined height range as the distance from the bottom wall increases. In practice, the dimension of the gap formed between the fixed bases of the two uprights of the steady rest and the lower end of the transformer body is such that the lateral direction of the lower end of the transformer body is So that it can prevent the swing of
Fix the steady rest to the bottom wall.

According to this structure, the dimension between the non-fixed side ends of the pair of steady rests is larger than the dimension between the pair of diagonal corners of the lower end of the transformer body. Also, the lower end of the transformer body can be easily inserted into the upper space between the pair of steady rests. Then, by simply lowering the transformer body toward the bottom wall of the transformer container, the lower end of the transformer body is guided along the two sloping upright portions, and the lower end of the transformer body is the bottom of the transformer container. Go down towards the wall. With the transformer body lowered to the lowest position, the gap dimension formed between the pair of steady rests and the lower end of the transformer body is Since the size is such that the shake of the transformer container in the plane of the bottom wall portion) can be prevented, the shake of the transformer body can be prevented.

The transformer body steady rest is provided so as to sandwich the four corners of the lower end portion of the transformer body from the outside.
It can also be composed of two steady rests. Using four steady rests increases the mechanical strength of the transformer body steady rest.

The two upright portions constituting the steady rest may be separately fixed to the bottom wall portion of the transformer container, but the two upright portions may have an integral structure. If the two standing portions have an integrated structure, the work of fixing the standing portions to the bottom wall portion becomes easy.

The structure of the standing portion may be any structure as long as the lower end of the transformer body can be smoothly guided toward the bottom wall of the transformer container. If each standing portion is formed of an inclined wall portion, the standing portion can be obtained at low cost.

When four steady rests are provided at the four corners of the lower end of the transformer body, each steady rest may be provided separately, but the four steady rests are provided on the lower side of the transformer body. You may provide continuously so that the circumference of an edge part may be enclosed. That is, four steady rests may be provided so as to form a frame surrounding the lower end of the transformer body. With such a frame, it is possible to maximize the mechanical strength and mounting strength of the steady rest of the transformer body.

[0016]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described in detail below with reference to the drawings. The gist of the present invention resides in the structure of the steady rest of the transformer body, and the other structures may be the same as the structure of the conventional transformer shown in FIG.
And (B) show schematic views of the structure of the steady rest of the transformer body used in the transformer of the present invention. FIG. 1 (A) is a side view of the transformer body steady rest fixed to the bottom wall portion 1a of the transformer container, and FIG. 1 (B) is fixed to the bottom wall portion 1a of the transformer container. It is the figure which looked at an example of the transformer main body steady rest from the opening side of the transformer container. 2 is the transformer body. In FIG. 1B, the transformer main body 2 is shown in a plan view for easy understanding.

The steady rest 3 of the transformer body shown in FIG.
A pair provided so as to sandwich a pair of corner portions 2b and 2c located on the diagonal line of the lower end portion of the transformer body 2 (specifically, the lower end portion of the iron core tightening fitting of the transformer iron core) from the outside. It is composed of steady rests 4 and 5. The pair of steady rests 4 and 5 stand up from the bottom wall portion 1a and the two sides 2b of the corresponding corner portions 2b and 2c of the corresponding transformer body 2.
1 and 2b2 and 2 extending along 2c1 and 2c2
Slanted wall portions 4a and 4b and 5a constituting one upright portion
And 5b respectively.

Since the structure of the pair of steady rests 4 and 5 is the same, the structure of one steady rest 4 will be described. Inclined wall portions 4a and 4b constituting the steady rest 4
Is an inclined wall portion 4a fixed to the bottom wall portion 1a by welding.
The angle θ between the lower end edges of the shafts 4b and 4b is approximately 90 degrees, and each of them has a shape inclined so as to be separated from the transformer main body 2 as it is separated from the bottom wall portion 1a. And 2
The non-fixed side edge, that is, the upper edge of each of the two inclined wall portions 4a and 4b extends substantially parallel to the bottom wall portion 1a. Inclined wall part 4a
The gap between the lowermost end 4c1 of the connecting portion 4c of 4b and the corresponding corner 2b of the transformer body 2 is equal to
The lower end portion 2a of the transformer is placed on the bottom wall portion 1a of the transformer container, and is dimensioned so that the lateral shake of the transformer body 2 falls within an allowable range. Regarding the structure of the steady rest 5, the same reference numerals as those given to the steady rest 4 are given and the description thereof is omitted.

The two slanted wall portions 4a and 4b need only be slanted in a portion (a range of a predetermined height direction) that guides the transformer body 2, and a portion that does not require a guide (a predetermined height). It may extend parallel to the transformer main body 2 in a portion beyond the range of the direction).

In this embodiment, the two inclined wall portions 4a are
4b are connected to each other, but two inclined wall portions 4a
The parts 4b and 4b may be fixed to the bottom wall of the transformer container while being separated from each other.

In the above embodiment, the transformer main body steady rest 3 is provided as a pair so as to sandwich the pair of corner portions 2b and 2c located on the diagonal line of the lower end portion of the transformer main body 2 from the outside. The steady rests 4 and 5 of FIG.
As shown in (A), it may be configured by four steady rests 4 to 7 provided so as to sandwich the four corners 2b to 2e of the lower end of the transformer main body 2 from the outside. FIG. 2
As shown in (B), each inclined wall portion forming the four steady rests 4 to 7 is continuously provided so as to surround the periphery of the lower end of the transformer main body 2, and the lower side of the transformer main body 2 is provided. It may be a frame body that surrounds the periphery of the end portion.

The configurations of some of the inventions described in this specification will be listed below.

(1) The transformer structure in which the lower structural portion of the iron core fastening metal fitting of the transformer main body 2 housed in the transformer container closed by the lid member is fixed to the bottom wall portion 1a of the transformer container. A transformer which is arranged so as to be sandwiched by a transformer main body steady rest 3 and in which lateral shake of the lower end portion 2a of the transformer main body is blocked, wherein the transformer main body steady rest 3 is It is composed of a pair of steady rests 4 and 5 provided so as to sandwich a pair of corner portions 2b and 2c located on the diagonal line of the lower structural portion of the iron core fastening member from the outside,
The steady rests 4 and 5 are provided with two inclined wall portions 4a to 5b standing upright from the bottom wall portion 1a and extending along two sides of the corresponding corner portions, and the two inclined wall portions are A transformer characterized in that it is inclined so as to separate from the main body of the transformer as it separates from the bottom wall.

(2) The transformer main body in which the lower structural portion of the iron core fastening metal fitting of the transformer main body housed inside the transformer container closed by the lid member is fixed to the bottom wall of the transformer container. A transformer, which is arranged so as to be sandwiched by steady rests and prevents lateral shake of a lower end portion of the transformer main body, wherein the transformer main body steady rests are Four steady rests 4 to 7 provided so as to sandwich the four corners 2b to 2e of the lower end from the outside.
And the steady rest extends from the bottom wall portion and extends along two sides of the corresponding corner portions 2b to 2e.
A transformer, comprising: two rising parts, wherein the two rising parts are respectively inclined so as to be separated from the transformer main body as being separated from the bottom wall part.

(3) The size of the gap formed between the fixed side base portions of the two inclined wall portions 4a and 4b of the steady rest and the lower end portion 2a of the transformer main body 2 is the dimension of the transformer. The transformer according to (1) or (2) above, wherein the steady rest is fixed to the bottom wall so that the lower end of the main body of the vessel has a dimension capable of preventing lateral swing.

[0026]

According to the present invention, the transformer main body can be easily mounted on the transformer container, and even if the transformer main body has a large height, it can be smoothly mounted on the transformer container. It is possible to prevent the horizontal shake.

[Brief description of drawings]

FIG. 1A is a side view of a transformer body steady rest fixed to a bottom wall portion of a transformer container, and FIG. 1B is fixed to a bottom wall portion of the transformer container. It is the figure which looked at an example of a transformer main body steady rest from the opening part side of a transformer container.

FIG. 2A and FIG. 2B are diagrams respectively showing a modified example of the steady rest of the transformer main body that can be used in the transformer of the present invention.

3 (A) and 3 (B) are schematic diagrams of a transformer body steady rest structure used in a conventional transformer.

[Explanation of symbols]

 101 transformer container 1a, 101a bottom wall portion 2,102 transformer body 3,103 transformer body steady rest 4,5,6,7,104,105 steady rest portion 4a, 4b, 5a, 5b slanted wall portion ( (Standing section)

Claims (4)

[Claims] 1. A lower end portion of a transformer main body housed inside the transformer container is disposed inside a transformer main body steady rest fixed to a bottom wall portion of the transformer container. A transformer in which lateral deflection of the lower end of the transformer body is prevented, wherein the transformer body steady rest is a pair of diagonally located lower end portions of the transformer body. The pair of steady rests are provided so as to sandwich the corners from the outside, and the steady rests have two standing portions that stand upright from the bottom wall portion and extend along two sides of the corresponding corners. A transformer, wherein the two rising portions are respectively inclined so as to separate from the transformer main body as they separate from the bottom wall portion in a predetermined height range. 2. A lower end portion of a transformer main body housed inside the transformer container is disposed inside a transformer main body steady rest fixed to a bottom wall portion of the transformer container. A transformer in which lateral shake of the lower end portion of the transformer body is blocked, wherein the transformer body steady rest includes four corner portions of the lower end portion of the transformer body from outside. 4 to be sandwiched
The steady rest includes two standing portions that stand upright from the bottom wall portion and extend along two sides of the corresponding corner portions, and the two standing portions have a predetermined width. A transformer characterized in that it is inclined so as to separate from the transformer main body as it separates from the bottom wall portion in the height range. 3. The transformer according to claim 1, wherein the two upright portions are integrally provided. 4. The transformer according to claim 2, wherein the four steady rests are continuously provided so as to surround the lower end of the transformer main body.