JPH05175053A - Dry-type transformer - Google Patents
Dry-type transformerInfo
- Publication number
- JPH05175053A JPH05175053A JP3343563A JP34356391A JPH05175053A JP H05175053 A JPH05175053 A JP H05175053A JP 3343563 A JP3343563 A JP 3343563A JP 34356391 A JP34356391 A JP 34356391A JP H05175053 A JPH05175053 A JP H05175053A
- Authority
- JP
- Japan
- Prior art keywords
- iron core
- core
- contact plate
- winding
- plate
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 69
- 239000002184 metal Substances 0.000 claims abstract description 34
- 229910052751 metal Inorganic materials 0.000 claims abstract description 34
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 14
- 239000010959 steel Substances 0.000 claims abstract description 14
- 238000013016 damping Methods 0.000 claims abstract description 12
- 238000004804 winding Methods 0.000 claims description 48
- 239000000463 material Substances 0.000 claims description 5
- 230000000903 blocking effect Effects 0.000 claims description 4
- 229910052742 iron Inorganic materials 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract 1
- 230000037431 insertion Effects 0.000 description 8
- 238000003780 insertion Methods 0.000 description 8
- 230000000694 effects Effects 0.000 description 4
- 229910000976 Electrical steel Inorganic materials 0.000 description 3
- 239000000725 suspension Substances 0.000 description 2
- 238000009434 installation Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 230000001902 propagating effect Effects 0.000 description 1
- 229920002379 silicone rubber Polymers 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
Landscapes
- Regulation Of General Use Transformers (AREA)
- Housings And Mounting Of Transformers (AREA)
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、屋内電源設備のひとつ
として使用される乾式変圧器に係り、特に変圧器の内部
構造の改良に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dry type transformer used as one of indoor power supply facilities, and more particularly to improvement of the internal structure of the transformer.
【０００２】[0002]
【従来の技術】図７は乾式変圧器の従来技術の一構成例
を示している。同図に示す乾式変圧器は、巻鉄心１と、
コイル２と、上締金具４，下締金具６と、当板３とを有
して構成されている。即ち、巻鉄心１は、珪素鋼板を複
数枚積層してリング状に形成すると共に、その内側中央
に積層された珪素鋼板を上から下まで延びるように形成
して脚部を設け、その中央の脚部と外側の両側に配置さ
れる脚部とで三個の脚部を有して構成されている。コイ
ル２は巻鉄心１の各脚部の周囲に装着されている。前記
上締金具４及び下締金具６は、巻鉄心１の上面及び底面
を覆い得る大きさをなしており、双方が協働して上下方
向から巻鉄心１を挟持するようにしている。当板３は、
一般の鋼板によって真直に形成され、しかも巻鉄心１の
両外側の脚部とこれに装着されたコイル２との間に夫々
配置されており、夫々が上端部に固定金具５を介し上締
金具４をボルト・ナットによって連結するとともに、下
端部に下締金具６をボルト・ナットによって連結してい
る。また、上部締金具４の上部には吊り耳（もしくはア
イナット）からなる吊り金具７が固定され、この吊り金
具７に運搬器具としてのフックを通すことによって変圧
器を運搬させ、これによって変圧器を所望の位置に据え
付けるようにしている。なお、この種に関連したものと
して、特公表６３−５０１９９７号公報，実公昭２７−
２９２６号公報，同２８−１２４２６号公報，同３１−
１５８１１号公報，同３７−２１１２７号公報等が挙げ
られる。2. Description of the Related Art FIG. 7 shows an example of a conventional structure of a dry type transformer. The dry type transformer shown in FIG.
The coil 2, the upper clamp 4, the lower clamp 6, and the contact plate 3 are included. That is, the wound iron core 1 is formed by stacking a plurality of silicon steel plates into a ring shape, and the silicon steel plates stacked in the center of the inside are formed so as to extend from the top to the bottom to provide legs, and The leg part and the leg parts arranged on both sides of the outer side have three leg parts. The coil 2 is mounted around each leg of the wound core 1. The upper fastening member 4 and the lower fastening member 6 have a size capable of covering the upper surface and the bottom surface of the wound iron core 1, and both of them cooperate to hold the wound iron core 1 from above and below. The plate 3 is
It is formed straight from a general steel plate and is arranged between the legs on both outer sides of the wound iron core 1 and the coils 2 attached to the iron core 1. 4 are connected by bolts and nuts, and the lower clamp 6 is connected by bolts and nuts at the lower end. In addition, a hanging metal fitting 7 made of a hanging ear (or an eye nut) is fixed to the upper part of the upper fastening metal fitting 4, and a transformer is carried by passing a hook as a carrying tool through the hanging metal fitting 7, and thereby the transformer is mounted. It is installed in the desired position. In addition, as a thing related to this kind, Japanese Patent Publication No. 63-501997, Jikho Sho 27-
2926, 28-12426, and 31-
No. 15811, No. 37-21127, etc. are mentioned.
【０００３】[0003]
【発明が解決しようとする課題】ところで、図７に示す
従来技術は、変圧器の低騒音化及び取扱いについて配慮
されていない。即ち、巻鉄心は電源が投入されると、磁
歪運動が起こることによって振動が発生し、その振動に
よって騒音となる問題がある。また、変圧器の据え付け
に際しては、フックによって運搬できるようにするた
め、上締金具４に吊り耳（もしくはアイナット）７を固
定しているものの、運搬器具としてフック以外のものを
用いて運搬しようとすると、例えばワイヤロープ等を用
いようとすると、ワイヤでは吊り耳７に引掛けることが
できず、そのため、運搬ができなくなるおそれがある。By the way, the prior art shown in FIG. 7 does not consider noise reduction and handling of the transformer. That is, there is a problem that when the power is turned on, the wound iron core vibrates due to magnetostrictive movement, and the vibration causes noise. Also, when installing the transformer, the hanging ear (or eye nut) 7 is fixed to the upper fastening member 4 so that it can be carried by a hook, but try to carry it by using something other than a hook as a carrying device. Then, for example, if a wire rope or the like is used, the wire cannot be hooked on the hanging ear 7, and therefore, the wire may not be carried.
【０００４】本発明の目的は、上記従来技術の問題点に
鑑み、低騒音化を図り得る乾式変圧器を提供することに
あり、他の目的は、低騒音化をいっそう確実に達成でき
る乾式変圧器を提供することにあり、さらに他の目的
は、取扱い勝手の良好な乾式変圧器を提供することにあ
る。In view of the above problems of the prior art, an object of the present invention is to provide a dry type transformer capable of achieving low noise, and another object of the present invention is to provide a dry type transformer capable of further reliably achieving low noise. Another object of the present invention is to provide a dry type transformer which is easy to handle.
【０００５】[0005]
【課題を解決するための手段】本発明の一番目の発明に
おいては、複数の脚部を設けた巻鉄心と、巻鉄心の各脚
部の周囲に夫々装着されたコイルと、巻鉄心を協働して
挟持する上・下締金具と、これら上締金具及び下締金具
間を連結する当板とを有している。そして、該当板は制
振鋼板によりＵ字形に形成され、かつ両側面が巻鉄心の
両側に位置する脚部の外側面を押さえると共に、底面が
下締金具及び巻鉄心の底部を押さえ付けている。また本
発明の二番目の発明においては、上記一番目の発明に加
え、前記巻鉄心の底面における少なくとも突合せラップ
部と下締金具との間に、巻鉄心に生じる騒音を遮断し得
る材質によって形成された緩衝部材を介設したことに特
徴がある。さらに本発明の三番目の発明においては、前
記当板がハンガー形状の吊り金具を有し、該吊り金具に
変圧器運搬用の運搬器具を引掛け得る引掛け部を設け、
かつ該引掛け部は、吊り金具に対し変圧器運搬用の運搬
器具の種類に応じて複数種類形成していることに特徴が
ある。According to a first aspect of the present invention, a winding iron core provided with a plurality of legs, a coil attached around each leg of the winding iron core, and a winding iron core are combined. It has upper and lower clamps that work and pinch, and a contact plate that connects the upper clamp and the lower clamp. The plate is formed into a U-shape by a damping steel plate, and both side surfaces press the outer surfaces of the legs located on both sides of the winding core, while the bottom surface presses the lower clamp and the bottom of the winding core. .. In addition, in the second invention of the present invention, in addition to the above-mentioned first invention, it is formed of a material capable of blocking noise generated in the winding core between at least the butt wrap portion and the lower fastening metal on the bottom surface of the winding core. It is characterized in that the buffer member provided is interposed. Furthermore, in a third aspect of the present invention, the contact plate has a hanger-shaped hanging fitting, and the hanging fitting is provided with a hooking portion capable of hooking a transporting device for transporting a transformer.
Further, the hooking portion is characterized in that a plurality of types of hooking portions are formed on the hanging metal fittings according to the type of transportation equipment for transporting the transformer.
【０００６】[0006]
【作用】巻鉄心が駆動されると、巻鉄心に磁歪運動が起
こるので、該巻鉄心に振動が発生し、その振動によって
騒音となる。この場合、本発明の一番目の発明では、上
述の如く、当板が制振鋼板によりＵ字形に形成され、そ
の両側面が巻鉄心の両側に位置する脚部の外側面を押さ
えると共に、当板の底面が下締金具及び巻鉄心の底部を
押さえ付けているので、当板が巻鉄心の底部及び両脚部
を確りと締め付けた状態となることにより、当板が巻鉄
心の磁歪運動によって発生する振動を抑制することがで
きる。そのため、当板による振動の抑制作用によってそ
れだけ騒音を低下させることができる。また、巻鉄心の
突合せラップ部は磁歪運動が起こると、騒音が特に著し
く大きくなる。しかしながら、二番目の発明では、巻鉄
心の底部と下締金具との間に巻鉄心に生じる騒音を遮断
する緩衝部材が配置されているので、上記一番目の発明
の効果と相俟ち、巻鉄心の突合せラップ部から発生する
騒音を遮断することができ、低騒音化を確実に達成する
ことができる。さらに、三番目の発明では、吊り金具に
設けた引掛け部が運搬器具の種類に応じて複数種類形成
しているので、変圧器の据え付けに際し、使用する運搬
器具の種類に応じ引掛け部を選択的に利用することによ
って変圧器を運搬することができ、それだけ使い勝手が
良好となる。When the wound iron core is driven, magnetostrictive movement occurs in the wound iron core, so that vibration occurs in the wound iron core, and the vibration causes noise. In this case, in the first aspect of the present invention, as described above, the contact plate is formed into a U-shape by the vibration damping steel plate, and both side surfaces thereof press the outer surface of the leg portion located on both sides of the winding core, and Since the bottom surface of the plate presses the lower clamp and the bottom of the winding core, it causes the bottom plate of the winding core and both legs to be firmly tightened, and this plate is caused by the magnetostrictive motion of the winding core. Vibration that occurs can be suppressed. Therefore, the noise can be reduced to that extent by the vibration suppressing action of the contact plate. Further, when the butt lap portion of the wound iron core undergoes magnetostrictive motion, noise becomes particularly large. However, in the second invention, the cushioning member for blocking the noise generated in the winding core is arranged between the bottom portion of the winding core and the lower fastening member, and therefore, in combination with the effect of the first invention, It is possible to block the noise generated from the butt wrap portion of the iron core, and reliably achieve the noise reduction. Furthermore, in the third invention, since the hook portion provided on the hanging metal fitting is formed in a plurality of types according to the type of the transportation equipment, when installing the transformer, the hook portion is formed according to the type of the transportation equipment to be used. The transformer can be transported by being selectively used, and the usability is improved accordingly.
【０００７】[0007]
【実施例】以下、本発明の実施例を図１乃至図６による
説明する。図１乃至図４は本発明による乾式変圧器の第
一の実施例を示している。この実施例の乾式変圧器は、
大別すると、巻鉄心１１と、コイル１２Ａ〜１２Ｃと、
上締金具１４，下締金具１６と、当板１３とを有して構
成されている。具体的に述べると、前記巻鉄心１１は図
２に示すように、珪素鋼板等の薄板を複数枚積層させて
リング状の大鉄心１１ａを形成すると共に、その大鉄心
１１ａの内側に同様に薄板を積層させて形成した二個の
小鉄心１１ｂ，１１ｃを並設することにより、中央に位
置する脚部１１Ｃと、両側の位置する脚部１１Ａ，１１
Ｂとを有して構成されている。従って、脚部１１Ａは、
大鉄心１１ａの一方の側部と、一方の小鉄心１１ｂの外
側寄りの側部とで形成され、脚部１１Ｂは、大鉄心１１
ａの他方の側部と、もう一つの小鉄心１１ｃの外側寄り
の側部とで形成され、さらに脚部１１Ｃは、双方の小鉄
心１１ｂ，１１ｃの互いに接する両側部で形成されてい
る。前記コイル１２Ａ〜１２Ｃは夫々が、筒状に形成さ
れており、その内部に巻鉄心１１の各々の脚部１１Ａ〜
１１Ｃを挿通することによって該各脚部１１Ａ〜１１Ｃ
の周囲を取り囲むように装着されている。前記上締金具
１４及び下締金具１６は、巻鉄心１１及びコイル１２Ａ
〜１２Ｃを覆い得るようにＣ形形状をなしている。そし
て、上締金具１４及び下締金具１６の内側に大鉄心１１
ａの上部及び低下部を夫々収納することにより上・下締
金具１４・１６が協働して巻鉄心１１を挟持するように
している。前記当板１３は、上部に固定金具１５を介し
上締金具１１が連結され、その下部に下締金具１６が連
結されている。固定金具１５は当板１３と上締金具１１
とを連結するものである。Embodiments of the present invention will be described below with reference to FIGS. 1 to 4 show a first embodiment of a dry type transformer according to the present invention. The dry type transformer of this embodiment is
When roughly classified, the winding iron core 11 and the coils 12A to 12C,
The upper clamp 14, the lower clamp 16, and the contact plate 13 are provided. More specifically, as shown in FIG. 2, the winding iron core 11 is formed by laminating a plurality of thin plates such as silicon steel plates to form a ring-shaped large iron core 11a, and the thin iron plate 11a is also formed inside the large iron core 11a. By arranging the two small iron cores 11b and 11c formed by stacking, the leg portion 11C located at the center and the leg portions 11A and 11 located on both sides
And B. Therefore, the leg 11A is
It is formed by one side portion of the large iron core 11a and an outer side portion of the one small iron core 11b, and the leg portion 11B is formed by the large iron core 11a.
It is formed by the other side portion of a and the outer side portion of the other small iron core 11c, and the leg portion 11C is formed by both side portions of both small iron cores 11b, 11c which are in contact with each other. Each of the coils 12A to 12C is formed in a tubular shape, and the leg portions 11A to 11A of the winding iron core 11 are provided therein.
Each of the leg portions 11A to 11C by inserting 11C.
It is installed so as to surround the circumference of. The upper clamp 14 and the lower clamp 16 are the winding iron core 11 and the coil 12A.
It has a C-shape to cover ~ 12C. Then, the large iron core 11 is placed inside the upper fastening member 14 and the lower fastening member 16.
By accommodating the upper part and the lower part of a, respectively, the upper and lower fastening members 14 and 16 cooperate to hold the wound iron core 11 therebetween. The upper part of the contact plate 13 is connected to the upper clamp 11 via a fixing bracket 15, and the lower clamp 16 is connected to the lower part thereof. The fixing metal fitting 15 includes the plate 13 and the upper tightening metal fitting 11.
And are connected.
【０００８】そして、前記当板１３は図１に示すよう
に、制振鋼板によってＵ字形に形成されている。即ち、
この当板１３は詳細に図示していないが、例えば鋼板と
鋼板の間に合成樹脂を挟み込んで成形された制振鋼板に
より、巻鉄心１１とほぼ同様の板幅をもつ帯状をなし、
しかも図１に示す如く、帯状の制振鋼板が巻鉄心１１の
両側の脚部１１Ａ，１１Ｂの外側面及び巻鉄心１１の底
面を包囲し得る形状のＵ字形に形成され、その内部に巻
鉄心１１が嵌合するようにしている。その場合、Ｕ字形
当板１３の両側面１３ａの内側が巻鉄心１１における脚
部１１Ａ，１１Ｂの外側面に密接してこれを押さえると
共に、Ｕ字形当板１３の底面１３ｂが下締金具１６及び
巻鉄心１１の底部の双方を押さえるようにしている。こ
のようなＵ字形をなす当板１３は、両側面１３ａが下締
金具１６の両側に形成された切欠１６ａ及び１６ａを経
て、かつ両脚部１１Ａ，１１Ｂの外側面とコイル１２
Ａ，１２Ｂの内周との間を通って上方を向くように配置
されることとなる。As shown in FIG. 1, the contact plate 13 is formed of a damping steel plate in a U-shape. That is,
Although this contact plate 13 is not shown in detail, for example, a damping steel plate formed by sandwiching a synthetic resin between steel plates forms a strip having a plate width substantially similar to that of the winding core 11,
Moreover, as shown in FIG. 1, the strip-shaped damping steel plate is formed in a U-shape having a shape capable of enclosing the outer surfaces of the legs 11A and 11B on both sides of the winding core 11 and the bottom surface of the winding core 11, and the winding core is provided inside thereof. 11 are fitted together. In that case, the inside of both side surfaces 13a of the U-shaped contact plate 13 closely contacts and presses the outer surfaces of the leg portions 11A and 11B of the wound iron core 11, and the bottom surface 13b of the U-shaped contact plate 13 serves as the lower fastening member 16 and Both of the bottoms of the winding core 11 are pressed down. In the U-shaped contact plate 13, both side surfaces 13a pass through the notches 16a and 16a formed on both sides of the lower fastening member 16 and the outer surfaces of the leg portions 11A and 11B and the coil 12 are formed.
It is arranged so as to pass upward between the inner circumferences of A and 12B.
【０００９】また、前記当板１３の両側面１３ａの端部
にはハンガー形状の吊り金具１７を有している。該吊り
金具１７は図３に示すように、当板１３と同じ幅をなす
と共に適宜の高さをなす金属板であって、しかも中央に
外方にコ字形をなして膨出する取っ手１７ａを有し、該
取っ手１７ａに変圧器を運搬するための運搬器具を引掛
けることができるようにしている。即ち、該取っ手１７
ａの下部にフック引掛け用の切欠き１７ｂと、ワイヤ引
掛け用の切欠き１７ｃとが設けられている。フック引掛
け用の切欠き１７ｂは運搬器具としてのフックを引掛け
るためのものであって、取っ手１７ａの中央の下部がＵ
字形に切除かれており、ワイヤ引掛け用の切欠き１７ｃ
は運搬器具としてのワイヤを引掛けるためのものであっ
て、取っ手１７ａの相対向する両側の下部がＵ字形に切
り除かれている。Hanger-shaped suspension fittings 17 are provided at the ends of both side surfaces 13a of the contact plate 13. As shown in FIG. 3, the hanging metal fitting 17 is a metal plate having the same width as the contact plate 13 and an appropriate height, and further has a handle 17a at the center which bulges outward in a U shape. The handle 17a has a carrying device for carrying the transformer. That is, the handle 17
A notch 17b for hooking a hook and a notch 17c for hooking a wire are provided in the lower part of a. The notch 17b for hooking hooks is for hooking a hook as a transportation tool, and the lower central part of the handle 17a is U-shaped.
Notched 17c for wire hooking
Is for hooking a wire as a carrying device, and the lower portions of both sides of the handle 17a facing each other are cut out in a U shape.
【００１０】そして、この吊り金具１７は、前記当板１
３とは分離しており、当板１３に対し上締金具１４を連
結するための固定金具１５を固定する際、該固定金具１
５と共に固定されるようにしている。そのため、吊り金
具１７の両側には当板１３及び固定金具１５のボルト挿
通穴１５ａと対応する位置に設けたボルト挿通穴１７ｄ
が形成され、該ボルト挿通穴１７ｄと、当板１３及び固
定金具１５のボルト挿通穴１５ａを図示しないボルトが
通ることによって吊り金具１７が固定金具１５と共に当
板１３の両端部に固定されるようにしている。固定金具
１５は図３に示すように、Ｌ字形をなしており、その側
部に上述の如くボルト挿通穴１５ａを設ける他、上部に
ボルト１５ｂのねじ部を突設しており、そのボルト１５
ｂを図２に示すように上締金具１４の挿通穴に挿通し、
かつ平座金１９，ばね座金２０，ナット１１で締め付け
ることにより、当板１３に固定金具１５を介し上締金具
１４を連結する。その際、上締金具１４の上面にはナッ
ト１１を通るボルト１５ｂの先端部が突出するので、そ
の突出した部分に袋ナット１２を被着させている。な
お、固定金具１５のボルト１５ｂは図示例では、一本と
しているが、巻鉄心１１の大きさや重量によってはそれ
に耐え得るように複数本に増加させて用いることは当然
である。The hanging metal fitting 17 is the same as the above-mentioned contact plate 1.
3 is separated, and when fixing the fixing metal fitting 15 for connecting the upper tightening metal fitting 14 to the contact plate 13, the fixing metal fitting 1
It is fixed together with 5. Therefore, on both sides of the hanging metal fitting 17, bolt insertion holes 17d provided at positions corresponding to the bolt insertion holes 15a of the contact plate 13 and the fixing metal fitting 15 are provided.
The bolts (not shown) pass through the bolt insertion holes 17d and the bolt insertion holes 15a of the contact plate 13 and the fixing fitting 15 so that the hanging fittings 17 are fixed to both ends of the contact plate 13 together with the fixing fittings 15. I have to. As shown in FIG. 3, the fixture 15 has an L-shape, and the bolt insertion hole 15a is provided on the side of the fixture 15 as described above, and the threaded portion of the bolt 15b is projectingly provided on the upper portion.
Insert b into the insertion hole of the upper clamp 14 as shown in FIG.
Further, by tightening with the flat washer 19, the spring washer 20, and the nut 11, the upper fastening member 14 is connected to the contact plate 13 via the fixing member 15. At this time, the tip of the bolt 15b that passes through the nut 11 is projected on the upper surface of the upper fastening member 14, so that the cap nut 12 is attached to the projected portion. Although the number of the bolts 15b of the fixing member 15 is one in the illustrated example, depending on the size and weight of the wound iron core 11, it is natural that the number of bolts 15b be increased to a certain number so as to withstand it.
【００１１】さらに、巻鉄心１１の底部と下締金具１６
との間には図４に示すように、緩衝部材２３が介設され
ている。該緩衝部材２３は、巻鉄心１１の底部の突合せ
ラップ部１１０と接する下締金具１６の内側底部及び内
側側部に夫々配置されており、巻鉄心１１から発する騒
音の伝搬を遮断するようにしている。そのため、緩衝部
材２３は巻鉄心１１から伝搬する騒音を遮断することが
できるように例えばシリコンゴム等のような材質のもの
で形成されている。なお、図１及び図２において、１８
はコイル支えであって、巻鉄心１１において両側に配置
されるコイル１２Ａ，１２Ｂの上部と上締金具１４間に
配置されると共に、そのコイル１２Ａ，１２Ｂの底部と
下締金具１６間に配置されている。次に、実施例の乾式
変圧器の作用について述べる。巻鉄心１１が駆動される
と、巻鉄心１１に磁歪運動が起こるので、該巻鉄心１１
に振動が発生し、その振動によって騒音となる。この場
合、巻鉄心１１の底面及び両側の脚部１１Ａ，１１Ｂの
外側面を当板１３が包囲し得るようＵ字形に形成されて
いるので、即ち、当板１３の両側面１３が脚部１１Ａ，
１１Ｂの外側面を押さえると共に、当板１３の底面１３
ｂが下締金具１６及び巻鉄心１１の底部を押さえ付けて
おり、しかもその当板１３が制振鋼板によって形成され
ているので、当板１３が巻鉄心１１の底部及び両脚部１
１Ａ，１１Ｂを確りと締め付けた状態となる。このた
め、当板１３が巻鉄心１１の磁歪運動によって発生する
振動を抑制することができるので、当板１３の振動の抑
制作用によってそれだけ騒音を低下させることができ
る。また、巻鉄心１１の突合せラップ部１１０は磁歪運
動が起こると、騒音が特に著しく大きくなる。しかしな
がら、実施例においては、上述の如く、巻鉄心１１の底
部と下締金具１６との間には音を遮断する緩衝部材２３
が配置されているので、該緩衝部材２３によって巻鉄心
１１の突合せラップ部１１０から発生する騒音を遮断す
ることができ、低騒音化を確実に達成することができ
る。さらに、ハンガー形状をなす吊り金具１７に運搬器
具としてのフックを引掛けるための切欠き１７ｂとワイ
ヤを引掛けるための切欠き１７ｃとが設けられているの
で、変圧器の据え付けに際し、使用する運搬器具の種類
に応じ切欠き１７ｂと１７ｃとを選択的に利用すること
によって変圧器を運搬することができる。従って、フッ
クは持論の他、ワイヤでも使用することができる。Further, the bottom of the wound iron core 11 and the lower clamp 16
As shown in FIG. 4, a cushioning member 23 is interposed between and. The cushioning members 23 are arranged on the inner bottom and inner sides of the lower fastening member 16 that are in contact with the butt wrap portion 110 on the bottom of the winding core 11, respectively, and block the propagation of noise emitted from the winding core 11. There is. Therefore, the buffer member 23 is made of a material such as silicon rubber so as to block the noise propagating from the wound iron core 11. In addition, in FIG. 1 and FIG.
Is a coil support and is arranged between the upper parts of the coils 12A and 12B and the upper clamp 14 arranged on both sides of the winding core 11 and between the bottoms of the coils 12A and 12B and the lower clamp 16. ing. Next, the operation of the dry type transformer of the embodiment will be described. When the winding iron core 11 is driven, a magnetostrictive motion occurs in the winding iron core 11, so that the winding iron core 11
Vibration is generated in the, and the vibration causes noise. In this case, the bottom surface of the wound iron core 11 and the outer surfaces of the leg portions 11A and 11B on both sides are formed in a U-shape so that the contact plate 13 can be surrounded, that is, the both side surfaces 13 of the contact plate 13 are the leg portions 11A. ，
While pressing the outer surface of 11B, the bottom surface 13 of the contact plate 13
b presses the lower clamp 16 and the bottom of the winding core 11, and since the contact plate 13 is formed of a vibration damping steel plate, the contact plate 13 forms the bottom of the winding core 11 and both legs 1.
1A and 11B are firmly tightened. Therefore, the contact plate 13 can suppress the vibration generated by the magnetostrictive movement of the wound iron core 11, and thus the noise can be reduced by the effect of suppressing the vibration of the contact plate 13. Further, when the butt lap portion 110 of the wound iron core 11 undergoes a magnetostrictive motion, noise becomes extremely large. However, in the embodiment, as described above, the cushioning member 23 for blocking the sound is provided between the bottom portion of the wound iron core 11 and the lower fastening member 16.
Since the cushioning member 23 is disposed, the noise generated from the butt wrap portion 110 of the wound iron core 11 can be blocked by the cushioning member 23, and the noise reduction can be reliably achieved. Further, since the hanging metal fitting 17 in the form of a hanger is provided with a notch 17b for hooking a hook as a carrying device and a notch 17c for hooking a wire, it is used when installing a transformer. The transformer can be transported by selectively utilizing the notches 17b and 17c according to the type of the device. Therefore, the hook can be used not only in the theory but also in the wire.
【００１２】そして図示実施例では、当板１３の組み付
けに際し、吊り金具１７を当板１３と分離しておけば、
吊り金具１７の両端部を下締金具１６の切欠１６ａから
差し込むことによって巻鉄心１１の両側の脚部１１Ａ，
１１Ｂの外側面とコイル１２Ａ，１２Ｂとの間に容易に
挿入することができる。従って、巻鉄心１１にコイル１
２Ａ〜１２Ｃを予め装着させていても、当板１３を容易
に組み付けることができる。また図示実施例では、上締
金具１４の上部には固定金具１５のボルト１５ｂの先端
部が突出しているものの、その先端部に袋ナット２２を
被せているので、吊り耳５をそのまま突出させた従来技
術に比較すると、突出する部分が極めて小さいものとな
り、美観を損なうおそれもない。In the illustrated embodiment, if the hanging metal fitting 17 is separated from the contact plate 13 when the contact plate 13 is assembled,
By inserting both ends of the hanging metal fitting 17 through the notches 16a of the lower fastening metal fitting 16, the leg portions 11A on both sides of the wound iron core 11,
It can be easily inserted between the outer surface of 11B and the coils 12A, 12B. Therefore, the coil 1 is wound around the winding core 11.
Even if 2A to 12C are mounted in advance, the contact plate 13 can be easily assembled. Further, in the illustrated embodiment, although the tip of the bolt 15b of the fixing member 15 is projected above the upper fastening member 14, the cap nut 22 is covered on the end, so that the hanging ear 5 is projected as it is. Compared with the prior art, the protruding portion is extremely small, and there is no fear of impairing the aesthetics.
【００１３】図５及び図６は本発明による乾式変圧器の
他の実施例を夫々示している。まず図５に示す実施例に
おいては、吊り金具２７が逆Ｕ字形に形成され、その外
方に突出する外壁２７ａの中央下部にフック引掛け用の
切欠き２７ｂが、また両側にワイヤ引掛け用の切欠き２
７ｃ，２７ｃが、さらに当板１３と接する部分には固定
金具１５と共に当板１３に固定するためのボルト挿通穴
２７ｄが夫々儲けられている。従って、据え付けに際し
ては、運搬器具の種類に応じ、切欠き２７ｂと２７ｃと
を選択的に用いることによって変圧器を運搬できるよう
になっている。図６に示す実施例においては、吊り金具
３７が中央部に互いに重ね合せるように折曲げ加工され
た重ね部３７ａが形成され、その重ね部３７ａの下部に
運搬器具としてのフック及びワイヤの双方を引掛けるた
めのフック・ワイヤ引掛け兼用の切欠き３７ｂが設けら
れ、また吊り金具３７の両側にボルト挿通穴３７ｃが設
けられている。従って、この場合は、一個の切欠き３７
ｂにフックとワイヤとの何れか一方を引掛けることがで
きるようにしている。FIGS. 5 and 6 show another embodiment of the dry type transformer according to the present invention. First, in the embodiment shown in FIG. 5, the hanging metal fitting 27 is formed in an inverted U shape, and a notch 27b for hooking hooks is formed in the lower central portion of an outer wall 27a protruding outward, and wire hooks for hooking wires on both sides. Notch 2
Bolt insertion holes 27d for fixing 7c and 27c to the contact plate 13 together with the fixing member 15 are provided at the portions in contact with the contact plate 13, respectively. Therefore, at the time of installation, the transformer can be carried by selectively using the notches 27b and 27c according to the type of the carrying device. In the embodiment shown in FIG. 6, a hanging metal fitting 37 is formed in the center so as to be folded so that the hanging metal fitting 37 is overlapped with each other. A notch 37b for hooking and wire hooking is provided for hooking, and bolt insertion holes 37c are provided on both sides of the hanging metal fitting 37. Therefore, in this case, one notch 37
One of the hook and the wire can be hooked on b.
【００１４】[0014]
【発明の効果】以上述べたように、本発明の請求項１に
よれば、当板が制振鋼板によってＵ字形に形成され、し
かも当板の両側面が巻鉄心の両側の脚部の外側面を押さ
えると共に、底面が下締金具及び巻鉄心の底部を押さえ
ることにより、巻鉄心と下締金具との双方を確りと包囲
し得るように構成したので、当板が巻鉄心の磁歪運動に
よって発生する振動を抑制することができる結果、当板
の振動の抑制作用によってそれだけ騒音を低下できる効
果がある。請求項２によれば、巻鉄心の底部の少なくと
も突合せラップ部と下締金具との間に音を遮断する緩衝
部材が配置され、緩衝部材によって突合せラップ部から
発生する騒音を遮断することができるので、請求項１の
構成と相俟って低騒音化を確実に達成できる。請求項３
によれば、変圧器の据え付けに際し、使用する運搬器具
の種類に応じ切欠きを選択的に利用することによって変
圧器を運搬することができ、運搬器具の種類に関わるこ
と確実に運搬できる結果、それだけ使い勝手が良好とな
る効果がある。As described above, according to the first aspect of the present invention, the contact plate is formed into a U shape by the damping steel plate, and both side surfaces of the contact plate are outside the leg portions on both sides of the winding core. By holding down the side surface and pressing the bottom of the lower clamp and the bottom of the winding iron core so that both the winding iron core and the lower fastening metal can be reliably surrounded, the plate is affected by the magnetostrictive movement of the winding iron core. As a result of suppressing the generated vibration, there is an effect that the noise can be reduced by that amount due to the vibration suppressing action of the contact plate. According to the second aspect of the present invention, the cushioning member that blocks sound is disposed between at least the butt wrap portion and the lower fastening member at the bottom of the wound core, and the cushioning member can block the noise generated from the butt wrap portion. Therefore, in combination with the configuration of claim 1, noise reduction can be reliably achieved. Claim 3
According to the above, when installing the transformer, the transformer can be transported by selectively utilizing the notch according to the type of the transport device to be used, and as a result, it is possible to reliably transport the transformer related to the type of the transport device. That is the effect of improving usability.
【図１】本発明による乾式変圧器の第一の実施例を示す
縦断面図である。FIG. 1 is a vertical sectional view showing a first embodiment of a dry type transformer according to the present invention.
【図２】乾式変圧器を示す一部分解の説明用斜視図であ
る。FIG. 2 is a partial exploded perspective view showing a dry type transformer.
【図３】当板と吊り金具と固定金具との関係を示す拡大
斜視図である。FIG. 3 is an enlarged perspective view showing the relationship between the contact plate, the hanging fitting, and the fixing fitting.
【図４】緩衝材の取付け位置を示す要部の説明用斜視図
である。FIG. 4 is a perspective view for explaining an essential part showing a mounting position of a cushioning material.
【図５】本発明による乾式変圧器の他の実施例を示す吊
り金具の説明用斜視図である。FIG. 5 is a perspective view for explaining a suspension fitting showing another embodiment of the dry type transformer according to the present invention.
【図６】本発明による乾式変圧器のさらの他の実施例を
示す吊り金具の説明用斜視図である。FIG. 6 is a perspective view for explaining a hanging fitting showing still another embodiment of the dry type transformer according to the present invention.
【図７】従来技術の乾式変圧器の一構成例を示す要部の
斜視図である。FIG. 7 is a perspective view of a main part showing a configuration example of a conventional dry transformer.
１１…巻鉄心、１１Ａ〜１１Ｃ…脚部、１１０…突合せ
ラップ部、１２Ａ〜１２Ｃ…コイル、１３…当板、１３
ａ…側面、１３ｂ…底面、１７，２７，３７…吊り金
具、１７ｂ，２７ｂ…フック引掛け用切欠き、１７ｃ，
２７ｃ…ワイヤ引掛け用切欠き、３７ｂ…フック・ワイ
ヤ引掛け兼用の切欠き、１４…上締金具、１６…下締金
具、２３…緩衝材。11 ... Winding iron core, 11A-11C ... Leg part, 110 ... Butt lap part, 12A-12C ... Coil, 13 ... Contact plate, 13
a ... side surface, 13b ... bottom surface, 17, 27, 37 ... hanging metal fittings, 17b, 27b ... notch for hooking hook, 17c,
27c ... Notches for hooking wires, 37b ... Notches for both hooks and wire hooks, 14 ... Upper tightening metal fittings, 16 ... Lower tightening metal fittings, 23 ... Buffer material.
Claims (3)
各脚部の周囲に夫々装着されたコイルと、巻鉄心を協働
して挟持する上・下締金具と、これら上締金具及び下締
金具間を連結する当板とを有し、該当板は制振鋼板によ
りＵ字形に形成され、かつ両側面が巻鉄心の両側に位置
する脚部の外側面を押さえると共に、底面が下締金具及
び巻鉄心の底部を押さえることを特徴とする乾式変圧
器。1. A winding iron core provided with a plurality of legs, a coil respectively mounted around each leg of the winding iron core, upper and lower tightening metal members for clamping the winding iron core together, and these upper members. And a contact plate that connects between the lower clamp and the lower clamp, the corresponding plate is formed into a U shape by a damping steel plate, and both side surfaces hold down the outer side surfaces of the leg portions located on both sides of the winding core, and A dry type transformer whose bottom surface presses the lower clamp and the bottom of the winding core.
各脚部の周囲に夫々装着されたコイルと、巻鉄心を協働
して挟持する上・下締金具と、これら上締金具及び下締
金具間を連結する当板とを有し、該当板は制振鋼板によ
りＵ字形に形成され、かつ両側面が巻鉄心の両側に位置
する脚部の外側面を押さえると共に、底面が下締金具及
び巻鉄心の底部を押さえ、かつ前記巻鉄心の底面におけ
る少なくとも突合せラップ部と下締金具との間に、巻鉄
心に生じる騒音を遮断し得る材質によって形成される緩
衝部材を介設したことを特徴とする乾式変圧器。2. A winding iron core provided with a plurality of legs, coils respectively mounted around the respective legs of the winding iron core, upper and lower tightening fittings for cooperatively sandwiching the winding iron core, and these And a contact plate that connects between the lower clamp and the lower clamp, the corresponding plate is formed into a U shape by a damping steel plate, and both side surfaces hold down the outer side surfaces of the leg portions located on both sides of the winding core, and A buffer member formed of a material capable of blocking the noise generated in the winding iron core, the bottom surface of which holds the lower fastening member and the bottom portion of the winding iron core, and between at least the butt lap portion and the lower fastening metal member on the bottom surface of the winding iron core. A dry type transformer characterized by being installed.
し、該吊り金具に変圧器運搬用の運搬器具を引掛け得る
引掛け部を設け、かつ該引掛け部は、吊り金具に対し変
圧器運搬用の運搬器具の種類に応じて複数種類形成して
いることを特徴とする請求項１または２に記載の乾式変
圧器。3. The plate has a hanger-shaped hanging metal fitting, and a hooking portion for hooking a transporting device for transporting a transformer is provided on the hanging metal fitting. The dry type transformer according to claim 1 or 2, wherein a plurality of types are formed according to the type of transporting device for transporting the transformer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3343563A JPH05175053A (en) | 1991-12-25 | 1991-12-25 | Dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3343563A JPH05175053A (en) | 1991-12-25 | 1991-12-25 | Dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH05175053A true JPH05175053A (en) | 1993-07-13 |
Family
ID=18362497
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3343563A Pending JPH05175053A (en) | 1991-12-25 | 1991-12-25 | Dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH05175053A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012049412A (en) * | 2010-08-30 | 2012-03-08 | Jfe Steel Corp | Fault diagnosis method for coil part of oil-immersed transformer |
| WO2014061154A1 (en) * | 2012-10-19 | 2014-04-24 | 三菱電機株式会社 | Inverter device, transformer, and transformer manufacturing method |
| CN106057427A (en) * | 2016-08-08 | 2016-10-26 | 常熟市东方特种金属材料厂 | Noise reduction transformer oil tank shell |
| CN106710797A (en) * | 2016-12-29 | 2017-05-24 | 安徽华正电气有限公司 | Novel high-frequency denoising apparatus for reactors and transformers |
-
1991
- 1991-12-25 JP JP3343563A patent/JPH05175053A/en active Pending
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012049412A (en) * | 2010-08-30 | 2012-03-08 | Jfe Steel Corp | Fault diagnosis method for coil part of oil-immersed transformer |
| WO2014061154A1 (en) * | 2012-10-19 | 2014-04-24 | 三菱電機株式会社 | Inverter device, transformer, and transformer manufacturing method |
| JP5490318B1 (en) * | 2012-10-19 | 2014-05-14 | 三菱電機株式会社 | Inverter device, transformer, and method of manufacturing transformer |
| CN104937680A (en) * | 2012-10-19 | 2015-09-23 | 三菱电机株式会社 | Inverter device, transformer, and transformer manufacturing method |
| US9537389B2 (en) | 2012-10-19 | 2017-01-03 | Mitsubishi Electric Corporation | Inverter device, transformer, and transformer manufacturing method |
| CN106057427A (en) * | 2016-08-08 | 2016-10-26 | 常熟市东方特种金属材料厂 | Noise reduction transformer oil tank shell |
| CN106710797A (en) * | 2016-12-29 | 2017-05-24 | 安徽华正电气有限公司 | Novel high-frequency denoising apparatus for reactors and transformers |
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