JP2010027975A5

JP2010027975A5 -

Info

Publication number: JP2010027975A5
Application number: JP2008189949A
Authority: JP
Filing date: 2008-07-23
Publication date: 2011-07-21
Anticipated expiration: 2028-07-23

Claims

長手方向に沿ってコイルを巻回する巻胴部を複数有すると共に、長手方向の両側下部に外向きに突出した複数の端子接続部を有するコイルボビンと、
前記コイルボビンに挿入されたＩ型コアと、
前記Ｉ型コアに磁気結合される日の字型コアとを備え、
前記コイルボビンは、前記複数の巻胴部の間に前記コイルボビンの一部を切り欠いた空間部を有し、前記複数の巻胴部には一次巻線と二次巻線の組がそれぞれ巻線され、
前記Ｉ型コアは、前記コイルボビンの両端部および前記空間部から露出され、
前記日の字型コアは、２つの長手部と前記長手部の両端部に設けた２つの短手部と前記短手部と略平行に設けられ前記長手部の略中央に設けた中央部を有し、前記短手部が前記Ｉ型コアの端部に磁気結合され、前記中央部が前記空間部にて前記Ｉ型コアに磁気結合されて、複数の閉磁路を構成し、
任意の１つの閉磁路の磁束の向きは、この任意の閉磁路と隣り合う閉磁路の磁束の向きと逆向きに形成され、
前記端子接続部の上方に前記日の字型コアの長手部が配置される、
ことを特徴とするトランス。 A plurality having a winding body for winding the coil along the longitudinal direction, and a coil bobbin having a plurality of terminal connecting portion projecting outwardly on both sides bottom of longitudinal,
An I-type core inserted into the coil bobbin;
A Japanese-shaped core magnetically coupled to the I-type core,
The coil bobbin has a space portion formed by cutting a part of the coil bobbin between the plurality of winding body, wherein the plurality of pairs of primary and secondary windings in the winding body, respectively winding And
The I-type core is exposed from both end portions of the coil bobbin and the space portion,
The sun-shaped core includes two long portions, two short portions provided at both ends of the long portion, and a central portion provided substantially parallel to the short portion and provided at a substantially center of the long portion. The short portion is magnetically coupled to the end of the I-type core, and the central portion is magnetically coupled to the I-type core in the space portion to form a plurality of closed magnetic paths,
The direction of the magnetic flux of any one closed magnetic circuit is formed in the direction opposite to the direction of the magnetic flux of the closed magnetic circuit adjacent to this arbitrary closed magnetic circuit ,
The longitudinal portion of the day-shaped core is disposed above the terminal connection portion.
Transformer characterized by that.

前記コイルボビンは、複数の鍔部を有し、前記巻胴部は前記鍔部間に形成されており、前記端子接続部は前記鍔部に固定されていることを特徴とする請求項１に記載のトランス。 2. The coil bobbin has a plurality of flanges, the winding body is formed between the flanges, and the terminal connection is fixed to the flange. Transformer.

前記巻胴部の両側に位置する鍔部間の長さＬ２は、前記日の字型コアの開口部の長さＬ１とほぼ等しく、
前記鍔部の幅Ｗ２は、前記日の字型コアの開口部の幅Ｗ１とほぼ等しく、
前記空間部の長さＬ３は、前記中央部の長さＬ４とほぼ等しい、
ことを特徴とする請求項２に記載のトランス。 The length L2 between the collar portions located on both sides of the winding drum portion is substantially equal to the length L1 of the opening of the date-shaped core,
The width W2 of the collar portion is substantially equal to the width W1 of the opening of the day-shaped core,
The space portion length L3 is substantially equal to the central portion length L4.
The transformer according to claim 2 .

前記日の字型コアは、前記中央部を複数有する変形日の字型コアであり、
前記コイルボビンは、前記空間部を複数有し、
前記変形日の字型コアの前記複数の中央部が、前記複数の空間部にてそれぞれ前記Ｉ型コアに磁気結合されている、
ことを特徴とする請求項１に記載のトランス。 The date-shaped core is a deformed date-shaped core having a plurality of the central portions,
The coil bobbin has a plurality of the space portions,
The plurality of center portions of the deformed date-shaped core are magnetically coupled to the I-type core in the plurality of space portions, respectively.
The transformer according to claim 1.