JP2016096315A - Induction apparatus - Google Patents
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本発明は、磁性コアと、磁性コアに捲回されたコイルとを有する誘導機器に関する。 The present invention relates to an induction device having a magnetic core and a coil wound around the magnetic core.
リアクトルやトランス等の誘導機器は、磁性コアと、磁性コアに捲回されたコイルとを有する。一般的に、磁性コアに捲回されたコイルに流れる電流が大きくなり、コイルに流れる電流により発生する磁束が、磁性コアをなす磁性体の種類及び磁性コアの形状、大きさ等によって決まるある一定の量を越えると、磁性コアは磁気飽和し、リアクトルやトランスとしての性能が低下してしまう。そのため、磁性コアの磁束経路（磁路）中にギャップを設けることで、磁性コアが磁気飽和してしまうことを抑制している（例えば特許文献１参照）。 An induction device such as a reactor or a transformer has a magnetic core and a coil wound around the magnetic core. In general, the current flowing through the coil wound around the magnetic core increases, and the magnetic flux generated by the current flowing through the coil is determined by the type of magnetic material forming the magnetic core and the shape and size of the magnetic core. If the amount exceeds this value, the magnetic core is magnetically saturated, and the performance as a reactor or a transformer deteriorates. Therefore, by providing a gap in the magnetic flux path (magnetic path) of the magnetic core, magnetic saturation of the magnetic core is suppressed (see, for example, Patent Document 1).
ところが、ギャップが存在すると、磁性コアからギャップの周囲に漏れ磁束が発生する。そして、漏れ磁束がギャップの近傍のコイルに鎖交すると、コイルを鎖交する漏れ磁束によりコイル中に渦電流が発生するためジュール損が生じ、リアクトルやトランスとしての性能が低下してしまう。 However, when a gap exists, leakage magnetic flux is generated around the gap from the magnetic core. When the leakage magnetic flux is linked to the coil in the vicinity of the gap, an eddy current is generated in the coil due to the leakage magnetic flux linking the coil, causing Joule loss, and the performance as a reactor or a transformer is lowered.
本発明は、上記課題を解決するためになされたものであって、その目的は、コイルに鎖交する漏れ磁束を低減することができる誘導機器を提供することにある。 The present invention has been made to solve the above-described problems, and an object of the present invention is to provide an induction device capable of reducing leakage magnetic flux linked to a coil.
上記課題を解決する誘導機器は、磁路を形成する磁性コアと、前記磁性コアに捲回されるコイルとを備え、前記コイルは、第１コイル要素、前記第１コイル要素の捲回方向とは逆方向に捲回された第２コイル要素、及び前記第１コイル要素と前記第２コイル要素とを連結する連結部を備え、前記磁性コアは、前記第１コイル要素が捲回される第１コアと、前記第２コイル要素が捲回される第２コアとを含み、前記第１コアと前記第２コアとの間にギャップを有し、前記第１コイル要素と前記第２コイル要素とが、前記第１コイル要素及び前記第２コイル要素の捲回中心軸線が互いに平行に配置されて隣り合うことで、前記第１コイル要素と前記第２コイル要素との間に空隙が形成されており、前記ギャップと前記空隙とが、前記第１コイル要素及び前記第２コイル要素の捲回中心軸線に沿った領域において重なり合っている。 An induction device that solves the above problem includes a magnetic core that forms a magnetic path and a coil wound around the magnetic core, the coil including a first coil element and a winding direction of the first coil element. Comprises a second coil element wound in the opposite direction, and a connecting portion for connecting the first coil element and the second coil element, and the magnetic core includes a first coil element wound around the first coil element. A first core and a second core around which the second coil element is wound, wherein the first coil element and the second coil element have a gap between the first core and the second core. However, the winding center axes of the first coil element and the second coil element are arranged parallel to each other and adjacent to each other, so that a gap is formed between the first coil element and the second coil element. The gap and the gap are the first coil elements. And overlap in the region along the winding center axis of the second coil element.
これによれば、磁性コアからギャップの周囲においてコイル寄りに発生する漏れ磁束の大半は、コイルに鎖交することなく、第１コア及び第２コアの一方から空隙に向けて流れた後に、第１コア及び第２コアの他方に流れる。よって、コイルに鎖交する漏れ磁束を低減することができる。 According to this, most of the leakage magnetic flux generated near the coil around the gap from the magnetic core flows from one of the first core and the second core toward the gap without interlinking with the coil, It flows to the other of the first core and the second core. Therefore, the leakage magnetic flux linked to the coil can be reduced.
上記誘導機器において、前記第１コア及び前記第２コアは、放熱部材に接する接触部を有することが好ましい。これによれば、第１コア及び第２コアから生じる熱が放熱部材によって放熱されるため、磁性コア全体の放熱性能を向上させることができる。 The said induction | guidance | derivation apparatus WHEREIN: It is preferable that a said 1st core and a said 2nd core have a contact part which contact | connects a thermal radiation member. According to this, since the heat generated from the first core and the second core is radiated by the heat radiating member, the heat radiating performance of the entire magnetic core can be improved.
上記誘導機器において、前記接触部は、前記捲回中心軸線が延びる方向に対して直交する方向に延びて前記放熱部材に面接触可能になっていることが好ましい。
これによれば、接触部が、放熱部材に点接触や線接触する場合に比べると、接触部と放熱部材との接触面積を増やすことができるため、磁性コア全体の放熱性能をさらに向上させることができる。
In the induction device, it is preferable that the contact portion extends in a direction orthogonal to a direction in which the winding center axis extends to be in surface contact with the heat radiating member.
According to this, since the contact area between the contact portion and the heat dissipation member can be increased as compared with the case where the contact portion makes point contact or line contact with the heat dissipation member, the heat dissipation performance of the entire magnetic core can be further improved. Can do.
上記誘導機器において、前記第１コア及び前記第２コアは、前記第１コイル要素又は前記第２コイル要素が周囲に捲回される捲回軸部と、前記捲回軸部の両端部から立設される一対の立設部とを有するＵ型コアであるとともに、前記一対の立設部の一方を有する第１コア部材と、前記一対の立設部の他方を有する第２コア部材とを組み合わせて構成されていることが好ましい。 In the induction device, the first core and the second core may stand up from a winding shaft portion around which the first coil element or the second coil element is wound, and from both ends of the winding shaft portion. A U-core having a pair of standing portions, a first core member having one of the pair of standing portions, and a second core member having the other of the pair of standing portions. It is preferable to be configured in combination.
これによれば、例えば、予め捲回された第１コイル要素及び第２コイル要素を、捲回軸部の周囲に配置した後に、第１コア部材と第２コア部材とを組み合わせることにより誘導機器を組み立てることができる。よって、誘導機器の組み立ての際に、第１コア及び第２コアの捲回軸部に第１コイル要素及び第２コイル要素を捲回していく必要が無く、誘導機器の組み立て作業を簡素化させることができる。 According to this, for example, after arranging the first coil element and the second coil element wound in advance around the winding shaft portion, the induction device is obtained by combining the first core member and the second core member. Can be assembled. Therefore, when assembling the induction device, it is not necessary to wind the first coil element and the second coil element around the winding shaft portions of the first core and the second core, thereby simplifying the assembly operation of the induction device. be able to.
上記誘導機器において、前記コイルにおける前記第１コイル要素及び前記第２コイル要素の捲回中心軸線が延びる方向の一端部と、前記第１コア及び前記第２コアとの間の距離は、前記コイルにおける前記第１コイル要素及び前記第２コイル要素の捲回中心軸線が延びる方向の他端部と、前記第１コア及び前記第２コアとの間の距離よりも大きくなっており、前記連結部は、前記コイルにおける前記第１コイル要素及び前記第２コイル要素の捲回中心軸線が延びる方向の一端側に配置されていることが好ましい。 In the induction device, the distance between the first core and the second core in the direction in which the winding center axis of the first coil element and the second coil element extends in the coil is the coil. A distance between the other end of the first coil element and the second coil element in the direction in which the winding center axis extends and the first core and the second core, Is preferably disposed on one end side of the coil in the direction in which the winding center axis of the first coil element and the second coil element extends.
これによれば、連結部が、コイルにおける第１コイル要素及び第２コイル要素の捲回中心軸線が延びる方向の他端側に配置されている場合に比べると、連結部に漏れ磁束が鎖交し難くなる。 According to this, compared with the case where the connecting portion is arranged on the other end side in the direction in which the winding center axis of the first coil element and the second coil element of the coil extends, the leakage magnetic flux is linked to the connecting portion. It becomes difficult to do.
この発明によれば、コイルに鎖交する漏れ磁束を低減することができる。 According to this invention, the leakage magnetic flux linked to the coil can be reduced.
以下、誘導機器を具体化した一実施形態を図１〜図３にしたがって説明する。本実施形態の誘導機器は、車載用の電子機器であるリアクトル装置を構成している。
図１（ａ）及び（ｂ）に示すように、リアクトル装置１０は、磁路を形成する磁性コア２０と、磁性コア２０に捲回されるコイル３０とを有する誘導機器１１を備えている。また、リアクトル装置１０は、誘導機器１１を収容する放熱部材としてのケース１２を備えている。ケース１２は金属製（本実施形態ではアルミニウム製）である。
Hereinafter, an embodiment in which a guidance device is embodied will be described with reference to FIGS. The induction device according to the present embodiment constitutes a reactor device that is an in-vehicle electronic device.
As shown in FIGS. 1A and 1B, the reactor device 10 includes an induction device 11 having a magnetic core 20 that forms a magnetic path and a coil 30 wound around the magnetic core 20. Further, the reactor device 10 includes a case 12 as a heat radiating member that houses the induction device 11. The case 12 is made of metal (in this embodiment, made of aluminum).
磁性コア２０は、コイル３０を構成する第１コイル要素３１が捲回される第１コア２１と、コイル３０を構成する第２コイル要素３２が捲回される第２コア２２とを有する。第１コア２１は、第１コイル要素３１が周囲に捲回される円柱状の捲回軸部２１ａと、捲回軸部２１ａの両端部から捲回軸部２１ａの軸方向に対して直交する方向に立設される平板状の一対の立設部２１ｂ，２１ｃとを有するＵ型コアである。第２コア２２は、第２コイル要素３２が周囲に捲回される円柱状の捲回軸部２２ａと、捲回軸部２２ａの両端部から捲回軸部２２ａの軸方向に対して直交する方向に立設される平板状の一対の立設部２２ｂ，２２ｃとを有するＵ型コアである。第１コア２１及び第２コア２２は磁性体であるとともに、圧粉磁芯により形成されている。また、第１コア２１及び第２コア２２は同一形状である。 The magnetic core 20 includes a first core 21 around which the first coil element 31 constituting the coil 30 is wound, and a second core 22 around which the second coil element 32 constituting the coil 30 is wound. The first core 21 is orthogonal to the axial direction of the winding shaft portion 21a from a cylindrical winding shaft portion 21a around which the first coil element 31 is wound, and from both ends of the winding shaft portion 21a. It is a U-shaped core having a pair of flat plate-like standing portions 21b and 21c standing in the direction. The second core 22 has a cylindrical winding shaft portion 22a around which the second coil element 32 is wound, and is orthogonal to the axial direction of the winding shaft portion 22a from both ends of the winding shaft portion 22a. It is a U-shaped core having a pair of flat plate-like standing portions 22b and 22c that are erected in the direction. The first core 21 and the second core 22 are magnetic bodies and are formed of a dust core. The first core 21 and the second core 22 have the same shape.
第１コア２１は、一対の立設部２１ｂ，２１ｃの一方の立設部２１ｂを有する第１コア部材２１１と、一対の立設部２１ｂ，２１ｃの他方の立設部２１ｃを有する第２コア部材２１２とを組み合わせて構成されている。すなわち、第１コア２１は、第１コア部材２１１及び第２コア部材２１２に分割されている。 The 1st core 21 has the 1st core member 211 which has one standing part 21b of a pair of standing parts 21b and 21c, and the 2nd core which has the other standing part 21c of a pair of standing parts 21b and 21c. The member 212 is combined. That is, the first core 21 is divided into a first core member 211 and a second core member 212.
第１コア部材２１１は、一方の立設部２１ｂに連続するとともに一方の立設部２１ｂに対して直交する方向に延びる円柱状の延設部２１１ａを有するＬ型コアである。第２コア部材２１２は、他方の立設部２１ｃに連続するとともに他方の立設部２１ｃに対して直交する方向に延びる円柱状の延設部２１２ａを有するＬ型コアである。第１コア部材２１１及び第２コア部材２１２は同一形状である。 The first core member 211 is an L-shaped core having a columnar extending portion 211a that is continuous with the one standing portion 21b and extends in a direction orthogonal to the one standing portion 21b. The second core member 212 is an L-shaped core having a columnar extending portion 212a that is continuous with the other standing portion 21c and extends in a direction orthogonal to the other standing portion 21c. The first core member 211 and the second core member 212 have the same shape.
第１コア部材２１１及び第２コア部材２１２は、各延設部２１１ａ，２１２ａの端面同士が接触した状態で配置されている。そして、第１コイル要素３１は、各延設部２１１ａ，２１２ａの周囲に捲回されている。よって、各延設部２１１ａ，２１２ａは、第１コア２１の捲回軸部２１ａを構成する。 The 1st core member 211 and the 2nd core member 212 are arrange | positioned in the state which the end surfaces of each extension part 211a and 212a contacted. The first coil element 31 is wound around the extended portions 211a and 212a. Accordingly, the extending portions 211 a and 212 a constitute the wound shaft portion 21 a of the first core 21.
第２コア２２は、一対の立設部２２ｂ，２２ｃの一方の立設部２２ｂを有する第１コア部材２２１と、一対の立設部２２ｂ，２２ｃの他方の立設部２２ｃを有する第２コア部材２２２とを組み合わせて構成されている。すなわち、第２コア２２は、第１コア部材２２１及び第２コア部材２２２に分割されている。 The second core 22 includes a first core member 221 having one standing portion 22b of the pair of standing portions 22b and 22c, and a second core having the other standing portion 22c of the pair of standing portions 22b and 22c. The member 222 is combined. That is, the second core 22 is divided into a first core member 221 and a second core member 222.
第１コア部材２２１は、一方の立設部２２ｂに連続するとともに一方の立設部２２ｂに対して直交する方向に延びる円柱状の延設部２２１ａを有するＬ型コアである。第２コア部材２２２は、他方の立設部２２ｃに連続するとともに他方の立設部２２ｃに対して直交する方向に延びる円柱状の延設部２２２ａを有するＬ型コアである。第１コア部材２２１及び第２コア部材２２２は同一形状である。 The first core member 221 is an L-shaped core having a columnar extending portion 221a that is continuous with one standing portion 22b and extends in a direction orthogonal to the one standing portion 22b. The second core member 222 is an L-shaped core having a columnar extending portion 222a that is continuous with the other standing portion 22c and extends in a direction orthogonal to the other standing portion 22c. The first core member 221 and the second core member 222 have the same shape.
第１コア部材２２１及び第２コア部材２２２は、各延設部２２１ａ，２２２ａの端面同士が接触した状態で配置されている。そして、第２コイル要素３２は、各延設部２２１ａ，２２２ａの周囲に捲回されている。よって、各延設部２２１ａ，２２２ａは、第２コア２２の捲回軸部２２ａを構成する。 The 1st core member 221 and the 2nd core member 222 are arrange | positioned in the state which the end surfaces of each extension part 221a and 222a contacted. The second coil element 32 is wound around the extended portions 221a and 222a. Therefore, each extending part 221a, 222a constitutes the winding shaft part 22a of the second core 22.
第１コア２１及び第２コア２２は、一方の立設部２１ｂ，２２ｂにおける捲回軸部２１ａ，２２ａからの立設方向の先端面がギャップ２３を介して互いに対向するとともに、他方の立設部２１ｃ，２２ｃにおける捲回軸部２１ａ，２２ａからの立設方向の先端面がギャップ２３を介して互いに対向した状態で配置されている。よって、本実施形態の誘導機器１１は、第１コア２１と第２コア２２との間にギャップ２３を有する。なお、ギャップ２３は、空気層であるエアギャップや、非磁性体（例えばセラミック）のギャップ板等である。 The first core 21 and the second core 22 have one end portion 21b, 22b whose front end surfaces in the standing direction from the winding shaft portions 21a, 22a are opposed to each other via the gap 23, and the other standing portion 21b, 22b The distal end surfaces of the portions 21 c and 22 c in the standing direction from the winding shaft portions 21 a and 22 a are arranged in a state of facing each other through the gap 23. Therefore, the induction device 11 of the present embodiment has a gap 23 between the first core 21 and the second core 22. The gap 23 is an air gap that is an air layer, a non-magnetic material (for example, ceramic) gap plate, or the like.
第１コイル要素３１と第２コイル要素３２とは、第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が互いに平行に配置されて隣り合っている。第１コイル要素３１及び第２コイル要素３２は、一本の導電板をエッジワイズ曲げして形成されている。そして、第１コイル要素３１と第２コイル要素３２とが隣り合って形成される空隙３３に設けられる連結部３４によって、第１コイル要素３１と第２コイル要素３２とが連結されている。第１コイル要素３１及び第２コイル要素３２の捲回方向はそれぞれ異なっている。 The first coil element 31 and the second coil element 32 are adjacent to each other with the winding center axes L1 of the first coil element 31 and the second coil element 32 arranged in parallel to each other. The first coil element 31 and the second coil element 32 are formed by edgewise bending a single conductive plate. And the 1st coil element 31 and the 2nd coil element 32 are connected by the connection part 34 provided in the space | gap 33 formed by the 1st coil element 31 and the 2nd coil element 32 adjoining. The winding directions of the first coil element 31 and the second coil element 32 are different from each other.
コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の一端部と、立設部２１ｃ，２２ｃとの間の距離Ｈ１は、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の他端部と、立設部２１ｂ，２２ｂとの間の距離Ｈ２よりも大きくなっている。そして、連結部３４は、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の一端側に配置されている。 The distance H1 between one end of the first coil element 31 and the second coil element 32 in the coil 30 in the direction in which the winding center axis L1 extends and the standing portions 21c and 22c are equal to each other. And it is larger than the distance H2 between the other end part of the direction where the winding center axis L1 of the 2nd coil element 32 is extended, and the standing parts 21b and 22b. And the connection part 34 is arrange | positioned at the one end side of the direction where the winding center axis line L1 of the 1st coil element 31 and the 2nd coil element 32 in the coil 30 is extended.
ケース１２には、凹部１２ａが形成されている。誘導機器１１は、他方の立設部２１ｃ，２２ｃの外面２１ｅ，２２ｅ（他方の立設部２１ｃ，２２ｃにおける捲回軸部２１ａ，２２ａとは反対側に位置する面）が、図示しない放熱グリースを介してケース１２の凹部１２ａの底面に面接触して密着した状態で、ケース１２に対して配置されている。よって、他方の立設部２１ｃ，２２ｃの外面２１ｅ，２２ｅは、ケース１２に接する接触部として機能する。すなわち、第１コア２１及び第２コア２２は、捲回中心軸線Ｌ１が延びる方向に対して直交する方向に延びてケース１２に面接触可能な接触部を有する。 The case 12 has a recess 12a. In the induction device 11, the outer surfaces 21e and 22e of the other upright portions 21c and 22c (surfaces of the other upright portions 21c and 22c located on the side opposite to the wound shaft portions 21a and 22a) are not shown. Is disposed with respect to the case 12 in close contact with the bottom surface of the recess 12a of the case 12 through the contact. Therefore, the outer surfaces 21e and 22e of the other standing portions 21c and 22c function as contact portions in contact with the case 12. That is, the first core 21 and the second core 22 have contact portions that extend in a direction orthogonal to the direction in which the winding center axis L1 extends and can come into surface contact with the case 12.
各ギャップ２３と空隙３３とは、第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１に沿った領域Ｚ１（図１（ａ）においてドットハッチングで示す領域）において重なり合っている。 The gaps 23 and the gaps 33 overlap each other in a region Z1 (a region indicated by dot hatching in FIG. 1A) along the winding center axis L1 of the first coil element 31 and the second coil element 32.
図２に示すように、誘導機器１１は、例えば、予め捲回された第１コイル要素３１及び第２コイル要素３２を、第１コア部材２１１，２２１の延設部２１１ａ，２２１ａの周囲に配置した後、第１コア部材２１１，２２１と第２コア部材２１２，２２２とを組み合わせることで組み立てられる。 As illustrated in FIG. 2, the induction device 11 includes, for example, a first coil element 31 and a second coil element 32 that are wound in advance around the extending portions 211 a and 221 a of the first core members 211 and 221. After that, the first core members 211 and 221 and the second core members 212 and 222 are assembled together.
次に、本実施形態の作用を説明する。
図３に示すように、磁性コア２０の磁路中にギャップ２３が設けられていると、磁性コア２０からギャップ２３の周囲に漏れ磁束Ｍ１が発生する。各ギャップ２３と空隙３３とは、第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１に沿った領域Ｚ１において重なり合っている。このため、磁性コア２０からギャップ２３の周囲においてコイル３０寄りに発生する漏れ磁束Ｍ１の大半は、コイル３０に鎖交することなく、第１コア２１及び第２コア２２の一方から空隙３３に向けて流れた後に、第１コア２１及び第２コア２２の他方に流れる。
Next, the operation of this embodiment will be described.
As shown in FIG. 3, when the gap 23 is provided in the magnetic path of the magnetic core 20, a leakage magnetic flux M <b> 1 is generated around the gap 23 from the magnetic core 20. The gaps 23 and the gaps 33 overlap each other in a region Z1 along the winding center axis L1 of the first coil element 31 and the second coil element 32. For this reason, most of the leakage magnetic flux M1 generated near the coil 30 around the gap 23 from the magnetic core 20 is not linked to the coil 30, and is directed from one of the first core 21 and the second core 22 toward the gap 33. Flow to the other of the first core 21 and the second core 22.
上記実施形態では以下の効果を得ることができる。
（１）ギャップ２３と空隙３３とが、第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１に沿った領域Ｚ１において重なり合っている。これによれば、磁性コア２０からギャップ２３の周囲においてコイル３０寄りに発生する漏れ磁束Ｍ１の大半は、コイル３０に鎖交することなく、第１コア２１及び第２コア２２の一方から空隙３３に向けて流れた後に、第１コア２１及び第２コア２２の他方に流れる。よって、コイル３０に鎖交する漏れ磁束を低減することができる。
In the above embodiment, the following effects can be obtained.
(1) The gap 23 and the air gap 33 overlap in a region Z1 along the winding center axis L1 of the first coil element 31 and the second coil element 32. According to this, most of the leakage magnetic flux M <b> 1 generated near the coil 30 around the gap 23 from the magnetic core 20 is not linked to the coil 30, and the gap 33 is formed from one of the first core 21 and the second core 22. Flows to the other of the first core 21 and the second core 22. Therefore, the leakage magnetic flux linked to the coil 30 can be reduced.
（２）第１コア２１及び第２コア２２において、他方の立設部２１ｃ，２２ｃの外面２１ｅ，２２ｅは、ケース１２に接する。これによれば、第１コア２１及び第２コア２２から生じる熱がケース１２によって放熱されるため、磁性コア２０全体の放熱性能を向上させることができる。 (2) In the first core 21 and the second core 22, the outer surfaces 21 e and 22 e of the other standing portions 21 c and 22 c are in contact with the case 12. According to this, since the heat generated from the first core 21 and the second core 22 is radiated by the case 12, the heat dissipation performance of the entire magnetic core 20 can be improved.
（３）他方の立設部２１ｃ，２２ｃは、捲回中心軸線Ｌ１が延びる方向に対して直交する方向に延びてケース１２に面接触可能になっている。これによれば、他方の立設部２１ｃ，２２ｃが、ケース１２に点接触や線接触する場合に比べると、他方の立設部２１ｃ，２２ｃとケース１２との接触面積を増やすことができるため、磁性コア２０全体の放熱性能をさらに向上させることができる。 (3) The other upright portions 21c and 22c extend in a direction perpendicular to the direction in which the winding center axis L1 extends, and can come into surface contact with the case 12. According to this, the contact area between the other standing portions 21c, 22c and the case 12 can be increased as compared with the case where the other standing portions 21c, 22c are in point contact or line contact with the case 12. The heat dissipation performance of the entire magnetic core 20 can be further improved.
（４）第１コア２１及び第２コア２２は、第１コア部材２１１，２２１と、第２コア部材２１２，２２２とを組み合わせて構成されている。これによれば、例えば、予め捲回された第１コイル要素３１及び第２コイル要素３２を、第１コア部材２１１，２２１の延設部２１１ａ，２２１ａの周囲に配置した後に、第１コア部材２１１，２２１と第２コア部材２１２，２２２とを組み合わせることにより誘導機器１１を組み立てることができる。よって、誘導機器１１の組み立ての際に、第１コア２１及び第２コア２２の捲回軸部２１ａ，２２ａに第１コイル要素３１及び第２コイル要素３２を捲回していく必要が無く、誘導機器１１の組み立て作業を簡素化させることができる。 (4) The first core 21 and the second core 22 are configured by combining the first core members 211 and 221 and the second core members 212 and 222. According to this, for example, after the first coil element 31 and the second coil element 32 wound in advance are arranged around the extending portions 211a and 221a of the first core members 211 and 221, the first core member The induction device 11 can be assembled by combining 211, 221 and the second core members 212, 222. Therefore, when the induction device 11 is assembled, there is no need to wind the first coil element 31 and the second coil element 32 around the winding shaft portions 21 a and 22 a of the first core 21 and the second core 22. Assembling work of the device 11 can be simplified.
（５）コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の一端部と、立設部２１ｃ，２２ｃとの間の距離Ｈ１は、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の他端部と、立設部２１ｂ，２２ｂとの間の距離Ｈ２よりも大きくなっている。そして、連結部３４は、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の一端側に配置されている。これによれば、連結部３４が、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の他端側に配置されている場合に比べると、連結部３４に漏れ磁束Ｍ１が鎖交し難い。 (5) The distance H1 between one end of the first coil element 31 and the second coil element 32 in the coil 30 in the direction in which the winding center axis L1 extends and the upright portions 21c and 22c is the first in the coil 30. It is larger than the distance H2 between the other end portion of the coil element 31 and the second coil element 32 in the extending direction of the winding center axis L1 and the standing portions 21b and 22b. And the connection part 34 is arrange | positioned at the one end side of the direction where the winding center axis line L1 of the 1st coil element 31 and the 2nd coil element 32 in the coil 30 is extended. According to this, compared with the case where the connection part 34 is arrange | positioned in the other end side of the direction where the winding center axis line L1 of the 1st coil element 31 and the 2nd coil element 32 in the coil 30 is extended, the connection part 34 is provided. Leakage magnetic flux M1 is difficult to interlink.
なお、上記実施形態は以下のように変更してもよい。
○ 実施形態において、第１コア２１及び第２コア２２は、第１コア部材２１１，２２１及び第２コア部材２１２，２２２に分割されていなくてもよい。
In addition, you may change the said embodiment as follows.
In the embodiment, the first core 21 and the second core 22 may not be divided into the first core members 211 and 221 and the second core members 212 and 222.
○ 実施形態において、他方の立設部２１ｃ，２２ｃが、ケース１２に点接触や線接触していてもよい。
○ 実施形態において、第１コア２１における他方の立設部２１ｃのみがケース１２に接していてもよいし、第２コア２２における他方の立設部２２ｃのみがケース１２に接していてもよい。
In the embodiment, the other standing portions 21 c and 22 c may be in point contact or line contact with the case 12.
In the embodiment, only the other standing portion 21 c of the first core 21 may be in contact with the case 12, or only the other standing portion 22 c of the second core 22 may be in contact with the case 12.
○ 実施形態において、第１コア２１及び第２コア２２は同一形状でなくてもよい。例えば、第１コア２１の一対の立設部２１ｂ，２１ｃの長さと、第２コア２２の一対の立設部２２ｂ，２２ｃの長さとが異なっていてもよい。 In the embodiment, the first core 21 and the second core 22 may not have the same shape. For example, the length of the pair of standing portions 21 b and 21 c of the first core 21 may be different from the length of the pair of standing portions 22 b and 22 c of the second core 22.
○ 実施形態において、第１コア２１及び第２コア２２が、例えば、Ｅ型コアであってもよい。
○ 実施形態において、誘導機器１１は、三つ以上のコアを有していてもよい。
In the embodiment, the first core 21 and the second core 22 may be, for example, an E-type core.
In the embodiment, the guidance device 11 may have three or more cores.
○ 実施形態において、誘導機器１１は、三つ以上のコイル要素を有していてもよい。
○ 実施形態において、第１コイル要素３１及び第２コイル要素３２は、丸線を捲回したものであってもよい。
(Circle) in embodiment, the induction | guidance | derivation apparatus 11 may have three or more coil elements.
In the embodiment, the first coil element 31 and the second coil element 32 may be formed by winding a round wire.
○ 実施形態において、第１コイル要素３１、第２コイル要素３２及び連結部３４のうち少なくとも１つはケース１２に対して絶縁された状態で熱的に結合されていてもよい。この場合、コイル３０の熱をケース１２に放熱することができる。 In the embodiment, at least one of the first coil element 31, the second coil element 32, and the connecting portion 34 may be thermally coupled in a state of being insulated from the case 12. In this case, the heat of the coil 30 can be radiated to the case 12.
○ 図４に示すように、連結部３４に、漏れ磁束Ｍ１の鎖交を抑制するように逃げ部３４ａを設けてもよい。例えば、連結部３４とギャップ２３とが領域Ｚ１で重なる部分において、ギャップ２３から離れるように連結部３４を曲げて形成してもよい。この場合、連結部３４における漏れ磁束Ｍ１の影響を低減することができる。 As shown in FIG. 4, the connecting portion 34 may be provided with a relief portion 34a so as to suppress the linkage of the leakage magnetic flux M1. For example, the connecting portion 34 may be formed to be bent away from the gap 23 in a portion where the connecting portion 34 and the gap 23 overlap in the region Z1. In this case, the influence of the leakage magnetic flux M1 in the connection part 34 can be reduced.
○ 実施形態において、連結部３４が、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の他端側に配置されていてもよい。
○ 実施形態において、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の一端部と、立設部２１ｃ，２２ｃとの間の距離Ｈ１が、コイル３０における第１コイル要素３１及び第２コイル要素３２の捲回中心軸線Ｌ１が延びる方向の他端部と、立設部２１ｂ，２２ｂとの間の距離Ｈ２と同じであってもよい。
In embodiment, the connection part 34 may be arrange | positioned at the other end side of the direction where the winding center axis line L1 of the 1st coil element 31 in the coil 30 and the 2nd coil element 32 is extended.
In the embodiment, the distance H1 between the one end portion of the coil 30 in the direction in which the winding center axis L1 extends and the standing portions 21c and 22c extend in the coil 30. The distance H2 between the other end portion of the first coil element 31 and the second coil element 32 in the direction in which the winding center axis L1 extends and the standing portions 21b and 22b may be the same.
○ 実施形態において、誘導機器１１を、リアクトル以外（例えばトランス）に適用してもよい。
○ 実施形態において、リアクトル装置１０は、車載用以外のものであってもよい。
In embodiment, you may apply the induction | guidance | derivation apparatus 11 to other than a reactor (for example, transformer).
(Circle) in embodiment, the reactor apparatus 10 may be other than vehicle-mounted.
次に、上記実施形態及び別例から把握できる技術的思想について以下に追記する。
（イ）前記誘導機器は、電子機器であるリアクトル装置を構成している。
Next, the technical idea that can be grasped from the above embodiment and other examples will be described below.
(A) The induction device constitutes a reactor device which is an electronic device.
１１…誘導機器、１２…放熱部材としてのケース、２０…磁性コア、２１…第１コア、２１ａ，２２ａ…捲回軸部、２１ｂ，２１ｃ，２２ｂ，２２ｃ…一対の立設部、２１ｅ，２２ｅ…接触部として機能する外面、２２…第２コア、２３…ギャップ、３０…コイル、３１…第１コイル要素、３２…第２コイル要素、３３…空隙、３４…連結部、２１１，２２１…第１コア部材、２１２，２２２…第２コア部材。 DESCRIPTION OF SYMBOLS 11 ... Guidance apparatus, 12 ... Case as heat radiating member, 20 ... Magnetic core, 21 ... 1st core, 21a, 22a ... Winding shaft part, 21b, 21c, 22b, 22c ... A pair of standing part, 21e, 22e ... an outer surface that functions as a contact portion, 22 ... a second core, 23 ... a gap, 30 ... a coil, 31 ... a first coil element, 32 ... a second coil element, 33 ... a gap, 34 ... a connecting portion, 211, 221 ... first 1 core member, 212, 222 ... 2nd core member.
Claims (5)
前記コイルは、第１コイル要素、前記第１コイル要素の捲回方向とは逆方向に捲回された第２コイル要素、及び前記第１コイル要素と前記第２コイル要素とを連結する連結部を備え、
前記磁性コアは、前記第１コイル要素が捲回される第１コアと、前記第２コイル要素が捲回される第２コアとを含み、
前記第１コアと前記第２コアとの間にギャップを有し、
前記第１コイル要素と前記第２コイル要素とが、前記第１コイル要素及び前記第２コイル要素の捲回中心軸線が互いに平行に配置されて隣り合うことで、前記第１コイル要素と前記第２コイル要素との間に空隙が形成されており、
前記ギャップと前記空隙とが、前記第１コイル要素及び前記第２コイル要素の捲回中心軸線に沿った領域において重なり合っていることを特徴とする誘導機器。 A magnetic core that forms a magnetic path, and a coil wound around the magnetic core,
The coil includes a first coil element, a second coil element wound in a direction opposite to the winding direction of the first coil element, and a connecting portion that connects the first coil element and the second coil element. With
The magnetic core includes a first core around which the first coil element is wound, and a second core around which the second coil element is wound,
Having a gap between the first core and the second core;
The first coil element and the second coil element are adjacent to each other with winding center axes of the first coil element and the second coil element being arranged in parallel to each other, so that the first coil element and the second coil element are adjacent to each other. An air gap is formed between the two coil elements,
The induction device, wherein the gap and the gap overlap in a region along a winding center axis of the first coil element and the second coil element.
前記連結部は、前記コイルにおける前記第１コイル要素及び前記第２コイル要素の捲回中心軸線が延びる方向の一端側に配置されていることを特徴とする請求項１〜請求項４のいずれか一項に記載の誘導機器。 The distance between one end of the coil in the direction in which the winding center axis of the first coil element and the second coil element extends, and the distance between the first core and the second core is the first coil in the coil. The distance between the element and the other end in the direction in which the winding center axis of the second coil element extends, and the distance between the first core and the second core,
The said connection part is arrange | positioned at the one end side of the direction where the winding center axis line of the said 1st coil element in the said coil and the said 2nd coil element is extended, The Claim 1 characterized by the above-mentioned. The induction device according to one item.
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