JP2007123767A - Reactor - Google Patents

Reactor Download PDF

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Publication number
JP2007123767A
JP2007123767A JP2005317373A JP2005317373A JP2007123767A JP 2007123767 A JP2007123767 A JP 2007123767A JP 2005317373 A JP2005317373 A JP 2005317373A JP 2005317373 A JP2005317373 A JP 2005317373A JP 2007123767 A JP2007123767 A JP 2007123767A
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Japan
Prior art keywords
spacer
type core
core
coil
gap
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JP2005317373A
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JP4738981B2 (en
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Toshiharu Nakajima
俊治 中嶋
Hideto Saeki
英人 佐伯
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Tamura Corp
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Tamura Corp
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Priority to JP2005317373A priority Critical patent/JP4738981B2/en
Priority to CN2006101427404A priority patent/CN1967745B/en
Priority to KR1020060105585A priority patent/KR101056381B1/en
Publication of JP2007123767A publication Critical patent/JP2007123767A/en
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    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F27/00—Details of transformers or inductances, in general
    • H01F27/06—Mounting, supporting or suspending transformers, reactors or choke coils not being of the signal type
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F3/00—Cores, Yokes, or armatures
    • H01F2003/005—Magnetic cores for receiving several windings with perpendicular axes, e.g. for antennae or inductive power transfer
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F5/00—Coils
    • H01F5/02—Coils wound on non-magnetic supports, e.g. formers
    • H01F2005/022—Coils wound on non-magnetic supports, e.g. formers wound on formers with several winding chambers separated by flanges, e.g. for high voltage applications

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Regulation Of General Use Transformers (AREA)
  • Physical Or Chemical Processes And Apparatus (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a reactor planning to reduce noise by exactly supporting a core by improving the plane accuracy of the surface of a spacer. <P>SOLUTION: Since the plane accuracy of an entire spacer arranged at a gap g between an inside leg 2a of an E type core 2 and an I type core 4 is hard to be improved, the core is supported in a manner of being held down in such a way that a projection 1d is formed on the surface of the spacer 1. The plane accuracy of a projection surface is improved, and the projection is formed to contact with the core in rough adhesion. A gap between a coil 5 and an E type core outside leg 2b is filled together with the spacer 1 having this projection 1d, and an anti-vibration insulator 8 pressing a coil periphery, the outside leg 2b internal surface or the like is arranged. The anti-vibration insulator 8 is also arranged at a step of a coil periphery surface. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、電源装置に用いられるリアクター、詳しくは騒音を低減したリアクターに関する。   The present invention relates to a reactor used in a power supply device, and more particularly to a reactor with reduced noise.

リアクターは、図１１に示すように、一般的に、Ｅ型コア２とＩ型コア４とを組合わせてなるコアが用いられている。そして、このコアは、Ｅ型コア２の中足２ａの先端面と、Ｅ型コア２に対向配置されＩ型コア４との対向面間にギャップｇが形成され、このギャップｇに、図１２に示すように、ギャップ保持材兼コア振動による騒音防止用のスペーサ１’が設けられ、中足２ａの周囲にコイル５が装着され、各外足２ｂとＩ型コア４との接合部Ａを溶接するなどしてリアクターが構成される。
このように、ギャップｇにスペーサ１’を設けた先行例としては、例えば下記特許文献１が存在する。
特開２００４−１４００５５号公報 As shown in FIG. 11, the reactor generally uses a core formed by combining an E-type core 2 and an I-type core 4. In this core, a gap g is formed between the front end surface of the middle leg 2a of the E-type core 2 and the opposed surface of the E-type core 2 and the I-type core 4, and in the gap g, FIG. As shown in FIG. 4, a spacer 1 ′ for preventing noise due to gap retaining material and core vibration is provided, a coil 5 is mounted around the middle foot 2a, and a joint A between each outer foot 2b and the I-type core 4 is provided. A reactor is formed by welding or the like.
Thus, as a prior example in which the spacer 1 ′ is provided in the gap g, for example, there is Patent Document 1 below.
JP 2004-140055 A

このスペーサ１’は、図１３に示すように、ギャップｇに対応する肉厚ｔを有する樹脂の成形品にて構成されている。この矩形のスペーサ１’は厚すぎると、図１４に示すように、接合部Ａに隙間が生じ、Ｅ型コア２とＩ型コア４とを溶接できなくなるため、高い寸法精度が要求される。   As shown in FIG. 13, the spacer 1 'is formed of a resin molded product having a thickness t corresponding to the gap g. If the rectangular spacer 1 ′ is too thick, a gap is generated at the joint A as shown in FIG. 14, and the E-type core 2 and the I-type core 4 cannot be welded. Therefore, high dimensional accuracy is required.

また、スペーサ１’の上下面の平面の精度を上げ、全体に亘って均一な平坦面とすることで低騒音化を図ることができるが、現在の成形機を用いた成形技術では表面全体を均一に平面化することは困難である。   In addition, it is possible to reduce the noise by increasing the accuracy of the flat surfaces of the upper and lower surfaces of the spacer 1 ′ and making it a uniform flat surface over the entire surface. Uniform planarization is difficult.

すなわち、上下面の表面は、一見したところ肉眼では平面に見えるが、実際は図１５に示すように、極端に図示すれば表面は凹凸状になっている。このため、ギャップｇにスペーサ１’を挿入しても中足２ａの先端面やＩ型コア４の内面との間に凹凸状による隙間ｂが生じ、騒音を低減することはできない、という課題があった。なお、図１５はスペーサ１’の表面の凹凸状を強調して示した概念図である。   That is, at first glance, the upper and lower surfaces appear to be flat with the naked eye, but actually, as shown in FIG. 15, the surface is uneven as shown in FIG. For this reason, even if the spacer 1 ′ is inserted into the gap g, a gap b due to the unevenness is formed between the distal end surface of the middle leg 2a and the inner surface of the I-type core 4, and noise cannot be reduced. there were. FIG. 15 is a conceptual diagram highlighting the irregularities on the surface of the spacer 1 ′.

この発明は上記のことに鑑み提案されたもので、その目的とするところは、スペーサの表面の平面精度を向上させ、コアを確実に支持するようにして低騒音化を図ったリアクターを提供することにある。   The present invention has been proposed in view of the above, and an object of the present invention is to provide a reactor in which the planar accuracy of the surface of the spacer is improved and the core is reliably supported to reduce noise. There is.

請求項１記載の発明は、中足と外足を有するＥ型コアと、このＥ型コアの前記中足、外足と対向配置されたＩ型コアとを備え、前記中足とＩ型コア間に形成されたギャップにスペーサが設けられ、前記中足の外周にコイルが装着されたリアクターにおいて、前記スペーサの少なくともいずれか一方の面に、表面の平面精度が高く前記Ｉ型コアまたは中足と当接し、Ｉ型コアまたは中足を支える突起を設けたことを特徴とする。
請求項２記載の発明は、請求項１記載のリアクターにおいて、前記突起は複数形成されたことを特徴とする。
請求項３記載の発明は、請求項１または２記載のリアクターにおいて、前記コイルの外周部と前記外足との間に前記コイルおよび前記外足を押圧する防振絶縁物を設けたことを特徴とする。
請求項４記載の発明は、請求項３記載のリアクターにおいて、前記防振絶縁物は前記コイルの外周部に巻き線が途中で巻き終わったときの段差部にも設けられることを特徴とする。 The invention according to claim 1 includes an E-type core having a middle leg and an outer leg, and an I-type core disposed opposite to the middle leg and the outer leg of the E-type core, the middle leg and the I-type core. In a reactor in which a spacer is provided in a gap formed therebetween and a coil is attached to the outer periphery of the middle leg, the I-core or middle leg has high surface accuracy on at least one of the spacer surfaces. And a protrusion for supporting the I-shaped core or the middle leg is provided.
According to a second aspect of the present invention, in the reactor according to the first aspect, a plurality of the protrusions are formed.
According to a third aspect of the present invention, in the reactor according to the first or second aspect, an anti-vibration insulator that presses the coil and the outer foot is provided between an outer peripheral portion of the coil and the outer foot. And
According to a fourth aspect of the present invention, in the reactor according to the third aspect, the anti-vibration insulator is provided also in a step portion when the winding is finished on the outer periphery of the coil.

請求項１記載の本発明によれば、平面精度の高い突起がコアとほぼ密着して当接してコアを押さえ込んで支持することができるため、コアの振動を低減ないし防止でき、その結果、騒音の低減化を図ることができる。
請求項２記載の本発明によれば、突起を複数としたため、コアを確実に押さえ込んで支持でき、騒音の低減化を図ることができる。
請求項３記載の本発明によれば、コイル外周部と外足内面間の隙間にコイルおよび外足等を押圧する防振絶縁材を設けたため、スペーサとの相乗作用により、騒音をより効果的に低減することができる。
請求項４記載の本発明によれば、コイル外周面に段差部があってもその部分を埋めるよう防振絶縁材を設けるため、段差部による隙間が埋まり、騒音を低減し得る。 According to the first aspect of the present invention, since the projection with high planar accuracy can be in close contact with the core and pressed down to support the core, the vibration of the core can be reduced or prevented. Can be reduced.
According to the second aspect of the present invention, since a plurality of protrusions are provided, the core can be reliably pressed down and supported, and noise can be reduced.
According to the third aspect of the present invention, since the anti-vibration insulating material that presses the coil, the outer foot, and the like is provided in the gap between the outer peripheral portion of the coil and the inner surface of the outer foot, the noise is more effective due to the synergistic action with the spacer. Can be reduced.
According to the fourth aspect of the present invention, since the anti-vibration insulating material is provided so as to fill the step portion on the outer peripheral surface of the coil, the gap due to the step portion is filled and noise can be reduced.

以下、図面に沿って本発明の実施例を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１（ａ）は本発明に用いられるスペーサの第１実施例の平面図、（ｂ）は側面図を示す。   FIG. 1A is a plan view of a first embodiment of a spacer used in the present invention, and FIG.

このスペーサ１の平面形状はほぼ長方形をなし、一方の面１ａの各長辺１ｂ，１ｂ’側の側部に一方の短辺１ｃ側から他方の短辺１ｃ’側に向って直線状に延びるリブ状の突起１ｄをそれぞれ形成し、各突起１ｄの表面の平面精度を向上させ、この平坦な突起１ｄを介しコアを確実に支えるようにしたことに特徴を有している。   The planar shape of the spacer 1 is substantially rectangular and extends linearly from one short side 1c side to the other short side 1c 'side on the side of each long side 1b, 1b' side of one surface 1a. A feature is that rib-shaped protrusions 1d are formed, the surface accuracy of the surface of each protrusion 1d is improved, and the core is securely supported via the flat protrusions 1d.

すなわち、スペーサ１の表面を全体に亘って平面の精度を出すことは難しいが、成形機のキャビティ（図示せず）の突起１ｄの表面に相当する部分の平面精度を高めることはでき、これにより、細長く巾狭であって表面積の少ない突起１ｄ部分のみの平面精度を出すことができる。   That is, although it is difficult to obtain a flat surface accuracy over the entire surface of the spacer 1, it is possible to increase the flat surface accuracy of the portion corresponding to the surface of the protrusion 1d of the cavity (not shown) of the molding machine. Further, it is possible to obtain the planar accuracy of only the projection 1d portion which is long and narrow and has a small surface area.

なお、図１（ｂ）において突起１ｄはスペーサ１の表面本体ａに対しかなり突出した状態で示しているが、実際には表面本体ａから極く僅かに突出しているものであっても良く、例えば表面本体ａより０．０２ｍｍ程度突出したものでも良い。   In FIG. 1 (b), the protrusion 1d is shown in a state of protruding considerably from the surface body a of the spacer 1, but in actuality, it may protrude slightly from the surface body a. For example, what protruded about 0.02 mm from the surface main body a may be used.

また、スペーサ１の各短辺１ｃ，１ｃ’側には切欠き１ｅが形成されている。   A notch 1e is formed on each short side 1c, 1c 'side of the spacer 1.

スペーサ１は、図２に示すＥ型コア２の中足２ａの先端面に載置されるが、Ｅ型コア２は薄いけい素鋼板の積層構造をなし、中足中央部にはそれらを一体化するための溶接部分３がある。この溶接部分３の各端部は溶接の盛り上がり部３ａが突出しているため、この盛り上がり部３ａを切欠き１ｅによって吸収している。なお、Ｅ型コア２の両端部には外足２ｂがそれぞれ形成されている。   The spacer 1 is placed on the distal end surface of the middle leg 2a of the E-type core 2 shown in FIG. 2, but the E-type core 2 has a laminated structure of thin silicon steel plates, and they are integrated in the middle part of the middle leg. There is a welded portion 3 for making it. Since the welding bulge portion 3a protrudes from each end portion of the welded portion 3, the bulge portion 3a is absorbed by the notch 1e. Outer legs 2b are formed at both ends of the E-type core 2, respectively.

図３はＥ型コア２の中足２ａとＩ型コア４との間のギャップｇに上記スペーサ１を配置した状態を示す。この場合、Ｉ型コア４はスペーサ１の両端部にそれぞれ形成された突起１ｄによって支えられる。突起１ｄの表面の平面精度は高いため、Ｉ型コア４の内面とほぼ密着させ当接させることができる。また、突起１ｄはスペーサ１の両端にあり、複数個のため、バランス良くＩ型コア４を支えることができる。   FIG. 3 shows a state in which the spacer 1 is arranged in the gap g between the middle leg 2 a of the E-type core 2 and the I-type core 4. In this case, the I-type core 4 is supported by protrusions 1 d formed at both ends of the spacer 1. Since the planar accuracy of the surface of the protrusion 1d is high, it can be brought into close contact with and in contact with the inner surface of the I-type core 4. Further, since the protrusions 1d are provided at both ends of the spacer 1 and are plural, the I-type core 4 can be supported in a well-balanced manner.

Ｅ型コア２の中足２ａの周囲には、図４に示すように、コイル５が装着される。コイル５とＥ型コア２の各外足２ｂの内面との間に隙間６が生じるため、この部分に防振絶縁物（図示せず）を挿入することが行われている。   As shown in FIG. 4, a coil 5 is mounted around the middle leg 2 a of the E-type core 2. Since a gap 6 is formed between the coil 5 and the inner surface of each outer leg 2b of the E-type core 2, a vibration-insulating insulator (not shown) is inserted into this portion.

しかしながら、コイル５の外周部は、巻線が全体に亘ってきっちりと巻かれ巻き終わっている場合は問題ないが、図４に示したように、巻線が途中で終了することがあり、コイル５の外周部に段差部７が生じる場合がある。コイル５の外周面と外足２ｂ内面間に単に防振絶縁物を挿入しても、この段差部７による隙間が残っていると騒音を効果的に低減することはできない。   However, the outer peripheral portion of the coil 5 is not a problem when the winding is completely wound around the entire winding, but as shown in FIG. In some cases, a stepped portion 7 may be formed on the outer peripheral portion of 5. Even if an anti-vibration insulator is simply inserted between the outer peripheral surface of the coil 5 and the inner surface of the outer foot 2b, noise cannot be effectively reduced if a gap due to the stepped portion 7 remains.

そこで、ギャップｇに本発明に用いられるスペーサ１を挿入するとともに、段差部７にも防振絶縁物を設けると、平面精度の良いスペーサ１との相乗作用により効果的に騒音を低減することができる。   Therefore, when the spacer 1 used in the present invention is inserted into the gap g and the vibration isolating insulator is also provided in the stepped portion 7, noise can be effectively reduced by a synergistic action with the spacer 1 having good plane accuracy. it can.

図５はギャップｇにスペーサ１を配し、かつ段差部７にかけても防振絶縁物８を設けたリアクターを示す。   FIG. 5 shows a reactor in which the spacer 1 is arranged in the gap g, and the anti-vibration insulator 8 is provided over the stepped portion 7.

組み立てにあたっては、中足２ａの外周にコイル５を装着し、かつ中足２ａの先端面のギャップｇにスペーサ１を配し、コイル５の外周と各外足２ｂの内面間に、段差部７をも埋める防振絶縁物８を挿入し、かつＥ型コア２の上面にＩ型コア４を配し、Ｉ型コア４をＥ型コア２側へ加圧して押さえ込んだ状態でＩ型コア４とＥ型コア２との接合部を溶接により一体化する。図中９はその溶接部分である。   When assembling, the coil 5 is mounted on the outer periphery of the middle foot 2a, and the spacer 1 is disposed in the gap g of the tip surface of the middle foot 2a. The step portion 7 is formed between the outer periphery of the coil 5 and the inner surface of each outer foot 2b. The I-type core 4 is inserted in a state where the I-type core 4 is arranged on the upper surface of the E-type core 2 and the I-type core 4 is pressed and pressed to the E-type core 2 side. And the E-type core 2 are integrated by welding. In the figure, 9 is the welded portion.

防振絶縁材８をＩ型コア４によって押さえ込んで加圧した状態で設ければ、コイル５の外周部と各外足２ｂの内面側部分およびＩ型コア４の内面部分等は、防振絶縁材８によって押圧された状態になる。このため、コイル５の外周とＥ型コア２とＩ型コア４の符号１０で示す領域に発生する騒音を抑えることができる。   If the anti-vibration insulating material 8 is pressed and pressed by the I-type core 4, the outer periphery of the coil 5, the inner side of each outer foot 2 b, the inner surface of the I-type core 4, etc. It will be in the state pressed by the material 8. FIG. For this reason, the noise which generate | occur | produces in the area | region shown with the code | symbol 10 of the outer periphery of the coil 5, and the E-type core 2 and the I-type core 4 can be suppressed.

このようにしてコアの窓内の隙間部分に殆ど隙間なく防振絶縁材８を充填し、この防振絶縁材８による押圧作用と、平面精度が良く、Ｉ型コア４によって押さえ込まれた突起１ｄがＩ型コア４の内面とほぼ密着して当接し、Ｉ型コア４を突起１ｄによって支えるスペーサ１との相乗作用によって騒音をより効果的に低減させることができる。   In this way, the anti-vibration insulating material 8 is filled in the gap portion in the window of the core with almost no gap, and the pressing action by the anti-vibration insulating material 8 and the planar accuracy are good, and the protrusion 1d pressed by the I-type core 4 However, the noise can be reduced more effectively by the synergistic action with the spacer 1 that supports the I-type core 4 by the protrusion 1d.

なお、防振絶縁材８としては、弾性体、硬質の紙、樹脂成形品または耐熱性と絶縁性とを併せ持つノーメックス紙（登録商標）等が用いられる。   As the anti-vibration insulating material 8, an elastic body, hard paper, a resin molded product, or Nomex paper (registered trademark) having both heat resistance and insulation is used.

図６（ａ）は本発明で用いられるスペーサの第２実施例の平面図、（ｂ）は側面図を示す。   6A is a plan view of a second embodiment of the spacer used in the present invention, and FIG. 6B is a side view.

この実施例では、切欠き１ｅのいずれか一方の外側にも一端から他端に向って直線状に延び、長辺１ｂ’側の突起１ｄとほぼ平行をなす突起１ｄをさらに設け、これら３つの突起１ｄによってＩ型コア４を支えるようにしたものである。   In this embodiment, a protrusion 1d that extends linearly from one end to the other end and substantially parallel to the protrusion 1d on the long side 1b ′ side is further provided outside one of the cutouts 1e. The I-type core 4 is supported by the protrusion 1d.

なお、切欠き１ｅの他方の外側にも同様に突起を設けても良い。   In addition, you may provide a protrusion similarly on the other outer side of the notch 1e.

また、図７（ａ）、（ｂ）に示すように、スペーサ１の他方の面１ａ’側にも突起１ｄを設けても良い。図７（ａ）は図１に示したスペーサ１の他方の面１ａ’にも同様の突起１ｄを形成した例、図７（ｂ）は図６のスペーサの他方の面１ａ’にも突起１ｄを形成した例を示す。この場合、他方の面１ａ’側の突起１ｄは中足２ａ側ともほぼ密着して当接するため、より一層の騒音低減作用を期待できる。   Further, as shown in FIGS. 7A and 7B, a protrusion 1 d may be provided on the other surface 1 a ′ side of the spacer 1. 7A shows an example in which a similar protrusion 1d is formed on the other surface 1a ′ of the spacer 1 shown in FIG. 1, and FIG. 7B shows a protrusion 1d on the other surface 1a ′ of the spacer in FIG. An example in which is formed is shown. In this case, since the protrusion 1d on the other surface 1a 'side is in close contact with the middle foot 2a side, a further noise reduction effect can be expected.

図８（ａ）は本発明に用いられるスペーサ１の第３実施例の平面図、（ｂ）は側面図を示す。   FIG. 8A is a plan view of a third embodiment of the spacer 1 used in the present invention, and FIG. 8B is a side view.

この実施例では一対の突起１ｄをスペーサ１の一方の面１ａ上において対角線状にＸ字状に形成したことに特徴を有している。このようなスペーサ１を用いても突起１ｄの表面の平面精度を向上させることができ、コアとほぼ密着させてコアを支えることができるため、騒音を低減し得る。   This embodiment is characterized in that the pair of protrusions 1d are formed in an X shape diagonally on one surface 1a of the spacer 1. Even if such a spacer 1 is used, the planar accuracy of the surface of the protrusion 1d can be improved, and the core can be supported by being substantially in close contact with the core, so that noise can be reduced.

また、図９に示すように、いずれか一方の突起１ｄとほぼ平行に延びる突起１ｄをさらに追加しても良い。   Further, as shown in FIG. 9, a protrusion 1d extending substantially parallel to any one of the protrusions 1d may be further added.

これらについても、図１０に示すように、スペーサ１の他方の面１ａ’側にも同様に突起１ｄを形成しても良い。   Also in these cases, as shown in FIG. 10, a protrusion 1d may be formed on the other surface 1a 'of the spacer 1 in the same manner.

なお、本発明は上記実施例に限定されるものでなく、本発明の精神を逸脱しない範囲で種々の設計変更は可能である。例えば突起１ｄはその表面の平面精度を出し、コアを支えることができれば良く、この条件を満たすことができれば突起１ｄの巾、数等はコアの大きさに応じ適宜選択し得る。
また、スペーサ１はコイル５がきっちり巻かれ、コイル外周面に段差部７がないタイプのものにも適用し得ることは勿論である。 The present invention is not limited to the above embodiments, and various design changes can be made without departing from the spirit of the present invention. For example, the protrusion 1d only needs to be able to provide a flat surface accuracy and support the core. If this condition can be satisfied, the width, number, etc. of the protrusion 1d can be appropriately selected according to the size of the core.
Of course, the spacer 1 can be applied to a type in which the coil 5 is tightly wound and the stepped portion 7 is not provided on the outer peripheral surface of the coil.

（ａ）は本発明に用いられる第１実施例に係るスペーサの平面図、（ｂ）は側面図を示す。(A) is a top view of the spacer which concerns on 1st Example used for this invention, (b) shows a side view. 本発明のスペーサが組み込まれるＥ型コアの平面図を示す。The top view of the E-type core in which the spacer of this invention is integrated is shown. Ｅ型コアの中足とＩ型コアのギャップに上記本発明に係るスペーサを設けた状態の説明図を示す。An explanatory view of a state in which the spacer according to the present invention is provided in the gap between the middle leg of the E type core and the I type core is shown. Ｅ型コアの中足外周にコイルを設けた状態の説明図を示す。Explanatory drawing of the state which provided the coil in the outer periphery of the middle leg of an E type core is shown. 本発明の第１実施例に係るスペーサが組み込まれたリアクターの説明図を示す。An explanatory view of a reactor incorporating a spacer concerning the 1st example of the present invention is shown. （ａ）は本発明に用いられるスペーサの第２実施例の平面図、（ｂ）は側面図を示す。(A) is a top view of 2nd Example of the spacer used for this invention, (b) shows a side view. （ａ）、（ｂ）はスペーサの両面側にそれぞれ突起を形成した例を示す。(A), (b) shows the example which formed the protrusion in the both surfaces side of the spacer, respectively. （ａ）は本発明に用いられるスペーサの第３実施例の平面図、（ｂ）は側面図を示す。(A) is a top view of 3rd Example of the spacer used for this invention, (b) shows a side view. 第３実施例のスペーサにさらに突起を追加した例を示す。The example which added the protrusion further to the spacer of 3rd Example is shown. 第３実施例のスペーサの他方の面にも突起を形成した例を示す。An example in which protrusions are formed on the other surface of the spacer of the third embodiment will be described. 一般的なＥ・Ｉ型コアの側面図。A side view of a general E / I type core. 従来例の斜視図を示す。The perspective view of a prior art example is shown. 従来のスペーサの斜視図を示す。The perspective view of the conventional spacer is shown. コアのギャップとスペーサの厚みの誤差により、Ｅ・Ｉ型コア間に隙間が生じた状態を示す説明図。Explanatory drawing which shows the state which the clearance gap produced between E * I type | mold cores by the difference | error of the gap of a core and the thickness of a spacer. 従来例の欠点を示す概念図である。It is a conceptual diagram which shows the fault of a prior art example.

符号の説明Explanation of symbols

１ スペーサ
１ａ 一方の面
１ｂ，１ｂ’ 長辺側
１ｃ，１ｃ’ 短辺側
１ｄ 突起
１ｅ 切欠き
２ Ｅ型コア
２ａ 中足
１ｂ 外足
３ 溶接部分
１ａ 盛り上がり部
４ Ｉ型コア
５ コイル
６ 隙間
７ 段差部
８ 防振絶縁物
９ 溶接部分
１０ コアに発生する騒音を抑える部分
ａ スペーサの表面本体
ｇ ギャップ DESCRIPTION OF SYMBOLS 1 Spacer 1a One surface 1b, 1b 'Long side 1c, 1c' Short side 1d Protrusion 1e Notch 2 E-type core 2a Middle leg 1b Outer leg 3 Welded part 1a Swelling part 4 I-type core 5 Coil 6 Gap 7 Stepped portion 8 Anti-vibration insulator 9 Welded portion 10 A portion to suppress noise generated in the core a Spacer surface main body g Gap

Claims (4)

中足と外足を有するＥ型コアと、このＥ型コアの前記中足、外足と対向配置されたＩ型コアとを備え、前記中足とＩ型コア間に形成されたギャップにスペーサが設けられ、前記中足の外周にコイルが装着されたリアクターにおいて、
前記スペーサの少なくともいずれか一方の面に、表面の平面精度が高く前記Ｉ型コアまたは中足と当接し、Ｉ型コアまたは中足を支える突起を設けたことを特徴とするリアクター。 An E-type core having a middle leg and an outer leg; and the I-type core disposed opposite to the middle leg and the outer leg of the E-type core, and a spacer formed in a gap formed between the middle leg and the I-type core In a reactor in which a coil is mounted on the outer periphery of the middle leg,
A reactor characterized in that at least one surface of the spacer is provided with a protrusion having high surface accuracy and abutting the I-type core or middle foot to support the I-type core or middle foot. 請求項１記載のリアクターにおいて、前記突起は複数形成されたことを特徴とするリアクター。   The reactor according to claim 1, wherein a plurality of the protrusions are formed. 前記請求項１または２記載のリアクターにおいて、前記コイルの外周部と前記外足との間に前記コイルおよび前記外足を押圧する防振絶縁物を設けたことを特徴とするリアクター。   3. The reactor according to claim 1, wherein a vibration-proof insulator that presses the coil and the outer foot is provided between an outer peripheral portion of the coil and the outer foot. 4. 前記請求項３記載のリアクターにおいて、前記防振絶縁物は前記コイルの外周部に巻き線が途中で巻き終わったときの段差部にも設けられることを特徴とするリアクター。   4. The reactor according to claim 3, wherein the anti-vibration insulator is also provided at a step portion when the winding is finished halfway around the outer periphery of the coil.
JP2005317373A 2005-10-31 2005-10-31 reactor Active JP4738981B2 (en)

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JP2010165857A (en) * 2009-01-15 2010-07-29 Canon Inc Transformer, switching power supply device, and dc-dc converter device
JP2011165977A (en) * 2010-02-10 2011-08-25 Sumitomo Electric Ind Ltd Reactor
JP2014027087A (en) * 2012-07-26 2014-02-06 Keihin Corp Reactor device

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KR101373689B1 (en) * 2013-04-09 2014-03-14 신한코아 주식회사 High frequency reactor
CN105575592B (en) * 2016-02-02 2017-09-29 北京新立机械有限责任公司 The packaging system and method for a kind of thin wall type dry electronic transformer

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JPS58184828A (en) * 1982-04-22 1983-10-28 Anritsu Corp Sampling pulse generator
JPS61157313A (en) * 1984-12-27 1986-07-17 Yoshimi Oshitari Liquid filtering apparatus
JP2002299128A (en) * 2001-03-30 2002-10-11 Nippon Chemicon Corp Winding-type core
JP2004140055A (en) * 2002-10-16 2004-05-13 Tamura Seisakusho Co Ltd Reactor

Cited By (3)

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Publication number Priority date Publication date Assignee Title
JP2010165857A (en) * 2009-01-15 2010-07-29 Canon Inc Transformer, switching power supply device, and dc-dc converter device
JP2011165977A (en) * 2010-02-10 2011-08-25 Sumitomo Electric Ind Ltd Reactor
JP2014027087A (en) * 2012-07-26 2014-02-06 Keihin Corp Reactor device

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KR20070046738A (en) 2007-05-03

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