JP4408227B2

JP4408227B2 - Stationary induction equipment

Info

Publication number: JP4408227B2
Application number: JP2004036405A
Authority: JP
Inventors: 孝平佐藤
Original assignee: Hitachi Industrial Equipment Systems Co Ltd
Current assignee: Hitachi Industrial Equipment Systems Co Ltd
Priority date: 2004-02-13
Filing date: 2004-02-13
Publication date: 2010-02-03
Anticipated expiration: 2024-02-13
Also published as: JP2005228927A

Description

本発明は変圧器やリアクトル等の静止誘導機器に係り、特に、鉄心としてアモルファス磁性薄帯体を重ね巻きして形成した巻鉄心を用いた静止誘導機器に関する。 The present invention relates to a stationary induction device such as a transformer or a reactor, and more particularly, to a stationary induction device using a wound iron core formed by overlapping and winding an amorphous magnetic ribbon as an iron core.

一般に、アモルファス磁性薄帯体を重ね巻きして形成した巻鉄心を用いた静止誘導機器は、例えば特許文献１に開示されているように、既に提案されている。 In general, a stationary induction device using a wound iron core formed by lap-wrapping amorphous magnetic ribbons has already been proposed as disclosed in Patent Document 1, for example.

特開平５−６７５３３号公報JP-A-5-67533

上記特許文献１に記載の静止誘導機器は、鉄心にアモルファス磁性薄帯体を用いていることから、鉄心自体で形状を保持することができず、鉄心重量を巻線に負担させることで鉄心の形状保持を行っている。そのために、巻線に過度な応力が作用し、その結果、巻線を変形させたり、巻線絶縁物を劣化させたりする問題があった。 Since the stationary induction device described in Patent Document 1 uses an amorphous magnetic ribbon for the iron core, the iron core itself cannot hold the shape, and the iron core weight is borne by the windings so that The shape is maintained. For this reason, excessive stress is applied to the winding, and as a result, there is a problem that the winding is deformed or the winding insulator is deteriorated.

本発明の目的は、鉄心の重量を巻線に負担させることのないアモルファス磁性薄帯体を用いた静止誘導機器を提供することにある。 An object of the present invention is to provide a stationary induction device using an amorphous magnetic ribbon that does not impose the weight of the iron core on the winding.

本発明は上記目的を達成するために、アモルファス磁性薄帯体を重ね巻きして形成した鉄心と、この鉄心の脚部に装着された筒状に形成された巻線とを備えた静止誘導機器において、前記巻線の内径側に前記鉄心を支持する支持部材を設け、この支持部材は、前記巻線が巻装されたボビンであり、このボビンに前記鉄心が支持され、前記鉄心の脚部の長さ方向に沿う前記ボビンの端部は、前記鉄心の長さ方向に沿う前記巻線の端部から突出し、この突出したボビンの端部に前記鉄心を支持する端部支持体を設けたことを特徴とする。
For the present invention to achieve the above object, the stationary induction apparatus having a core formed by winding superposed amorphous magnetic ribbons body, and a winding formed loaded tubular leg portion of the core A support member for supporting the iron core is provided on the inner diameter side of the winding, and the support member is a bobbin around which the winding is wound, and the iron core is supported on the bobbin, and the leg portion of the iron core. The end portion of the bobbin along the length direction of the core protrudes from the end portion of the winding along the length direction of the iron core, and an end support body that supports the iron core is provided at the end portion of the protruding bobbin. It is characterized by that.

このように、鉄心を支持部材に支持させることで、鉄心の重量が直接巻線に作用することがなくなり、その結果、鉄心の重量による巻線の変形を防止することができる。 In this way, by supporting the iron core on the support member, the weight of the iron core does not directly act on the winding, and as a result, deformation of the winding due to the weight of the iron core can be prevented.

以上説明したように本発明によれば、鉄心を支持部材に支持させることで、鉄心の重量を巻線に負担させることのないアモルファス磁性薄帯体を用いた静止誘導機器を得ることができる。 As described above, according to the present invention, it is possible to obtain a stationary induction device using an amorphous magnetic ribbon that does not burden the winding with the weight of the iron core by supporting the iron core on the support member.

以下本発明による静止誘導機器の一実施の形態を図１から図５に示す乾式変圧器に基づいて説明する。 Hereinafter, an embodiment of a stationary induction device according to the present invention will be described based on a dry transformer shown in FIGS.

乾式変圧器１は、大きく分けると、アモルファス磁性薄帯体を重ね巻きして形成した鉄心２と、この鉄心２の脚部に装着された巻線３と、前記鉄心２の上部と下部とを締付固定する上締金具４及び下締金具５と、下締金具５に固定した取り付けベース６とより構成されている。 The dry-type transformer 1 is roughly divided into an iron core 2 formed by overlappingly winding amorphous magnetic ribbons, a winding 3 attached to a leg portion of the iron core 2, and an upper portion and a lower portion of the iron core 2. The upper clamp 4 and the lower clamp 5 are fastened and fixed, and the mounting base 6 is fixed to the lower clamp 5.

前記鉄心２は、二つ並設した小鉄心７，８と、これら小鉄心７，８の外周部に接して位置する大鉄心９とで構成されている。これら小鉄心７，８及び大鉄心９は、夫々の下部で複数のアモルファス磁性薄帯体の端部を交互に重ね合わせることで、環状鉄心を構成している。 The iron core 2 is composed of two small iron cores 7 and 8 arranged side by side, and a large iron core 9 positioned in contact with the outer peripheral portion of the small iron cores 7 and 8. These small iron cores 7 and 8 and the large iron core 9 constitute an annular iron core by alternately overlapping the ends of a plurality of amorphous magnetic ribbons at the lower portions thereof.

前記巻線３は、前記二つ並設した小鉄心７，８と大鉄心９とで構成された鉄心２の脚部１０Ａ〜１０Ｃに装着され筒状に形成された３つの巻線１１Ａ〜１１Ｃを有している。各巻線１１Ａ〜１１Ｃは、夫々ボビン１２を介して前記脚部１０Ａ〜１０Ｃに装着されている。 The winding 3 is attached to the legs 10A to 10C of the iron core 2 composed of the two small iron cores 7 and 8 and the large iron core 9, and is formed into a cylindrical shape. have. Each of the windings 11A to 11C is attached to the leg portions 10A to 10C via a bobbin 12, respectively.

前記ボビン１２は、巻線１１Ａ〜１１Ｃを巻装支持すると共に、前記鉄心２を支持するための機械的強度を確保するために鋼材で形成されている。そして、鋼材で形成されたボビン１２は、１ターンを形成しないように、切り欠き１２Ｓを設け、この切り欠き１２Ｓを埋める絶縁材１３を絶縁テープ１４等で重ね巻いて接続している。また、前記脚部１０Ａ〜１０Ｃの長さ方向に沿う前記ボビン１２の端部は、前記脚部１０Ａ〜１０Ｃの長さ方向に沿う前記巻線１１Ａ〜１１Ｃの端部からＴ寸法突出するように形成されている。そして、隣接するボビン１２間をそれらの上下で夫々連結するように、詳しくは前記鉄心２の上下に位置する各継鉄部の内側において互いに隣接するボビン１２間に跨るように位置決め金具１５Ａ，１５Ｂが設置され、この位置決め金具１５Ａ，１５Ｂの端部は前記ボビン１２の内周側に折り込まれている。尚、前記ボビン１２の端部を直角に延在させてフランジを形成することで前記位置決め金具１５Ａ，１５Ｂを省略して部品点数を削減してもよい。 The bobbin 12 is formed of a steel material to wind and support the windings 11 </ b> A to 11 </ b> C and to ensure mechanical strength for supporting the iron core 2. The bobbin 12 made of steel is provided with a notch 12S so as not to form one turn, and the insulating material 13 filling the notch 12S is overlapped and connected with an insulating tape 14 or the like. Further, the end of the bobbin 12 along the length direction of the leg portions 10A to 10C protrudes from the end portion of the windings 11A to 11C along the length direction of the leg portions 10A to 10C. Is formed. Then, in order to connect the adjacent bobbins 12 at the upper and lower sides thereof, specifically, the positioning brackets 15A and 15B are provided so as to straddle between the adjacent bobbins 12 inside the yoke portions positioned above and below the iron core 2. The end portions of the positioning fittings 15A and 15B are folded into the inner peripheral side of the bobbin 12. The positioning brackets 15A and 15B may be omitted by extending the end of the bobbin 12 at a right angle to form a flange, thereby reducing the number of parts.

一方、上締金具４及び下締金具５内において、鉄心２の幅方向両側に位置する共通の上ボビン支え１６Ａ，１６Ｂ及び下ボビン支え１７Ａ，１７Ｂは前記各ボビン１２の上下端部に当接している。 On the other hand, in the upper clamp 4 and the lower clamp 5, the common upper bobbin supports 16A and 16B and the lower bobbin supports 17A and 17B located on both sides in the width direction of the iron core 2 are in contact with the upper and lower ends of each bobbin 12. ing.

また、前記巻線１１Ａ〜１１Ｃの下端は、共通の巻線支え１８Ａ，１８Ｂによって前記下締金具５のフランジ５Ｆに支持されている。尚、巻線支え１８Ａ，１８Ｂを省略して巻線３（１１Ａ〜１１Ｃ）をボビン１２の外周に支持するよう構成しても良いし、巻線３の重量を巻線支え１８Ａ，１８Ｂとボビン１２とによって支持するようにしてもよい。 The lower ends of the windings 11A to 11C are supported on the flange 5F of the lower clamp 5 by common winding supports 18A and 18B. The winding supports 18A and 18B may be omitted, and the winding 3 (11A to 11C) may be supported on the outer periphery of the bobbin 12, or the weight of the winding 3 may be set to the winding supports 18A and 18B and the bobbin. 12 may be supported.

上記のように構成したので、小鉄心７，８は、ボビン１２と位置決め金具１５Ａ，１５Ｂによってその内周側が支持され、大鉄心９は、ボビン１２と位置決め金具１５Ａ，１５Ｂによって支持された小鉄心７，８によってその内周側が支持される。そして小鉄心７，８及び大鉄心９を支持したボビン１２と位置決め金具１５Ａ，１５Ｂは、上方は上ボビン支え１６Ａ，１６Ｂを介して上締金具４に支持され、下方は下ボビン支え１７Ａ，１７Ｂを介して下締金具５に支持され、下締金具５は取り付けベース６に支持される。したがって、鉄心２は、巻線３の変形を防止する巻枠の機能を有するボビン１２と位置決め金具１５Ａ，１５Ｂによって、変形を防止されることになる。 Since it comprised as mentioned above, the small iron cores 7 and 8 are supported on the inner peripheral side by the bobbin 12 and the positioning fittings 15A and 15B, and the large iron core 9 is supported by the bobbin 12 and the positioning fittings 15A and 15B. 7 and 8 support the inner peripheral side. The bobbin 12 and the positioning brackets 15A and 15B that support the small iron cores 7 and 8 and the large iron core 9 are supported by the upper clamp 4 on the upper side via the upper bobbin supports 16A and 16B, and the lower bobbin supports 17A and 17B on the lower side. The lower clamp 5 is supported by the mounting base 6 via the mounting bracket 6. Therefore, the iron core 2 is prevented from being deformed by the bobbin 12 having the function of a winding frame that prevents the winding 3 from being deformed and the positioning fittings 15A and 15B.

一方、巻線３（１１Ａ〜１１Ｃ）は、巻線支え１８Ａ，１８Ｂ→下締金具５を介して取り付けベース６に支持される。 On the other hand, the winding 3 (11A to 11C) is supported by the mounting base 6 via the winding supports 18A and 18B → the lower clamp 5.

以上から、鉄心２の重量は巻線３に伝わらないので、鉄心重量による巻線３の変形はなくなり、巻線絶縁物を劣化させたりする問題は一掃される。また、巻線３の重量は、巻線支え１８Ａ，１８Ｂ→下締金具５を介して取り付けベース６によって支持されるので、鉄心２に負担をかけることはない。 From the above, since the weight of the iron core 2 is not transmitted to the winding 3, the deformation of the winding 3 due to the iron core weight is eliminated, and the problem of deteriorating the winding insulation is eliminated. Further, since the weight of the winding 3 is supported by the mounting base 6 via the winding supports 18A, 18B → the lower clamp 5, the iron core 2 is not burdened.

したがって、上記構成において、前記ボビン１２と位置決め金具１５Ａ，１５Ｂとが、本願発明の前記鉄心２の脚部１０Ａ〜１０Ｃと前記巻線３との間に配置された支持部材となり、これらの支持部材を支持する本願発明の静止誘導機器強度部材が、上ボビン支え１６Ａ，１６Ｂや下ボビン支え１７Ａ，１７Ｂ及び上締金具４や下締金具５、さらには取り付けベース６となる。 Therefore, in the above configuration, the bobbin 12 and the positioning fittings 15A and 15B serve as support members disposed between the legs 10A to 10C of the iron core 2 and the winding 3 of the present invention, and these support members The static induction device strength member of the present invention that supports the upper bobbin supports 16A and 16B, the lower bobbin supports 17A and 17B, the upper clamp 4 and the lower clamp 5, and the attachment base 6.

さらに、前記ボビン１２と位置決め金具１５Ａ，１５Ｂが、本願発明の鉄心の変形を防止し巻線を支持する鉄心変形防止部材となると共に、本願発明の巻線の変形を防止し鉄心を支持する巻線変形防止部材となる。 Further, the bobbin 12 and the positioning fittings 15A and 15B serve as an iron core deformation preventing member for preventing the deformation of the iron core of the present invention and supporting the winding, and the winding for preventing the deformation of the winding of the present invention and supporting the iron core. It becomes a line deformation prevention member.

ところで以上に実施の形態は、静止誘導機器として乾式変圧器を一例に説明したが、油入変圧器やリアクトル等の静止誘導機器にも本発明が適用できることは云うまでもない。 By the way, although embodiment mentioned above demonstrated the dry type transformer as an example as a static induction apparatus, it cannot be overemphasized that this invention is applicable also to static induction apparatuses, such as an oil-filled transformer and a reactor.

本発明による静止誘導機器の一実施の形態をしめす乾式変圧器の正面図。The front view of the dry type transformer which shows one Embodiment of the static induction apparatus by this invention. 図１のＡ−Ａ線にそう断面図。FIG. 2 is a cross-sectional view taken along line AA in FIG. 1. 図１の右側面図。The right view of FIG. 図１の鉄心に装着された巻線を示す断面図。Sectional drawing which shows the coil | winding with which the iron core of FIG. 1 was mounted | worn. 図１のボビンを示す横断拡大図。The cross-sectional enlarged view which shows the bobbin of FIG.

Explanation of symbols

１…乾式変圧器、２…鉄心、３（１１Ａ〜１１Ｃ）…巻線、４…上締金具、５…下締金具、６…取り付けベース、７，８…小鉄心、９…大鉄心、１０Ａ〜１０Ｃ…脚部、１２…ボビン、１５Ａ，１５Ｂ…位置決め金具、１６Ａ，１６Ｂ…上ボビン支え、１７Ａ，１７Ｂ…下ボビン支え、１８Ａ，１８Ｂ…巻線支え。 DESCRIPTION OF SYMBOLS 1 ... Dry type transformer, 2 ... Iron core, 3 (11A-11C) ... Winding, 4 ... Upper clamp, 5 ... Lower clamp, 6 ... Mounting base, 7,8 ... Small iron core, 9 ... Large iron core, 10A -10C ... leg part, 12 ... bobbin, 15A, 15B ... positioning bracket, 16A, 16B ... upper bobbin support, 17A, 17B ... lower bobbin support, 18A, 18B ... winding support.

Claims

In a static induction device including an iron core formed by wrapping an amorphous magnetic ribbon and a winding formed in a cylindrical shape attached to a leg portion of the iron core, the iron core is disposed on the inner diameter side of the winding. The support member is a bobbin around which the winding is wound, the iron core is supported by the bobbin, and the end portion of the bobbin along the length direction of the leg portion of the iron core Is a stationary induction device that protrudes from an end of the winding along the length direction of the iron core, and an end support that supports the iron core is provided at the end of the protruding bobbin .

In a static induction device comprising an iron core formed by wrapping an amorphous magnetic ribbon and a cylindrical winding attached to a leg of the iron core, on the inner diameter side of the winding, A bobbin having an end protruding from the end of the winding along the length direction of the iron core is mounted, and a mounting base is installed via the bobbin and a lower bobbin support in which the weight of the iron core is positioned at the lower end of the bobbin. A stationary induction device characterized in that the weight of the winding is received by the mounting base via a winding support located at the lower end of the winding .