JP2007165346A - Reactor - Google Patents

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JP2007165346A
JP2007165346A JP2005355616A JP2005355616A JP2007165346A JP 2007165346 A JP2007165346 A JP 2007165346A JP 2005355616 A JP2005355616 A JP 2005355616A JP 2005355616 A JP2005355616 A JP 2005355616A JP 2007165346 A JP2007165346 A JP 2007165346A
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iron core
reactor
protrusion
gap
core portion
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Kazuhiko Baba
和彦 馬場
Yoshio Takita
芳雄 滝田
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide a reactor where vibration and noise can be reduced without deteriorating rigidity of the reactor even if a void part for adjusting a magnetic saturation characteristic is formed in a magnetic core. <P>SOLUTION: The reactor is provided with a first iron 1 which is formed in an E shape and has a center projection 10b, projections 10a and 10c at both ends, and a base iron core 15; a second iron core 2 adjusted to the first iron 1; winding 3 wound to the center projection 10b formed in the first iron 1; an adhesion 6 where at least a part of end faces of the projections 10a and 10c on both ends of the first iron 1 and the end face of the center projection 10b in the first iron 1 is adjusted to the second iron 2; and a void 8 for adjusting magnetic saturation characteristic, which is arranged in a first magnetic path and a second magnetic path 2 or near the adhesion 6 of a common magnetic path of the first magnetic path 1 and the second magnetic path 2 or near a shift to the base iron core 15, and is formed of a long hole or a slit. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、インバータ機器の高調波電流対策に用いられるリアクタの構造に関するものである。   The present invention relates to the structure of a reactor used for countermeasures against harmonic currents in inverter equipment.

有鉄心型のリアクタは、最近普及が目覚しいインバータ機器、特に民生用のインバータエアコン等に力率改善用として使用されるケースが多い。   The cored core type reactor is often used for power factor improvement in inverter equipment, which has recently been remarkably popular, especially for consumer-use inverter air conditioners.

互いに付け合わされたＥ型鉄心とＩ型鉄心とを有し、且つＥ型鉄心の中央部に相当する巻線部の先端にＩ型鉄心に対する、磁気飽和特性を調整するためのエアギャップを形成してある鉄心と、巻線部に巻き付けてある巻線コイルとを具備しており、Ｉ型鉄心におけるエアギャップの対向面、対向反対面を平面、凹面に夫々形成してあり、或いはその反対にエアギャップの対向面、対向反対面を凹面、平面に夫々形成してあるリアクタが提案されている（例えば、特許文献１参照）。
実開平２−９５２１７号公報 An air gap for adjusting magnetic saturation characteristics with respect to the I-type iron core is formed at the tip of the winding portion corresponding to the center of the E-type iron core, which has an E-type iron core and an I-type iron core attached to each other. The opposite side and opposite side of the air gap in the I-type iron core are formed as a flat surface and a concave surface, respectively, or vice versa. A reactor has been proposed in which the air gap facing surface and the facing opposite surface are formed in a concave surface and a flat surface, respectively (for example, see Patent Document 1).
Japanese Utility Model Publication No. 2-95217

従来のリアクタは、Ｅ型鉄心の中央部に相当する巻線部の先端にＩ型鉄心に対するエアギャップが形成されているため、エアギャップにおける電磁的振動が避けられない。エアギャップの存在により、リアクタの発生する振動の主要成分が、例えば空気調和機の筐体の共振周波数に近い場合があり、空気調和機の振動の原因になっていた。   In the conventional reactor, since an air gap with respect to the I-type iron core is formed at the tip of the winding portion corresponding to the center portion of the E-type iron core, electromagnetic vibration in the air gap is inevitable. Due to the presence of the air gap, the main component of the vibration generated by the reactor may be close to the resonance frequency of the casing of the air conditioner, for example, which causes the vibration of the air conditioner.

この発明は、上記のような課題を解決するためになされたもので、鉄心に磁気飽和特性を調整するための空隙部を設けても、リアクタの剛性が低下せずに、振動、騒音を低減できるリアクタを提供することを目的とする。   The present invention has been made to solve the above-described problems, and even if a gap for adjusting magnetic saturation characteristics is provided in the iron core, the rigidity of the reactor is not reduced, and vibration and noise are reduced. An object is to provide a reactor that can be used.

この発明に係るリアクタは、Ｅ型形状で形成され、中央の突起部と、両端の二つの突起部と、底部鉄心とを有する第１の鉄心部と、この第１の鉄心部に付け合わされる第２の鉄心部と、第１の鉄心部に形成される中央の突起部に巻装される巻線と、第１の鉄心部の両端の二つの突起部の端面、及び第１の鉄心部の中央の突起部の端面の少なくとも一部が第２の鉄心部に付け合わされて形成される密着部と、第１の鉄心部の中央の突起部と、第２の鉄心部の一部と、第１の鉄心部の一方の端の突起部と、第１の鉄心部の底部鉄心の一部とで構成される第１の磁路と、第１の鉄心部の中央の突起部と、第２の鉄心部の一部と、第１の鉄心部の他方の端の突起部と、第１の鉄心部の底部鉄心の一部とで構成される第２の磁路と、第１の磁路と第２の磁路との夫々に、又は第１の磁路と第２の磁路との共通の磁路の密着部付近もしくは底部鉄心への移行部付近に設けられ、長孔又はスリットで形成された磁気飽和特性調整用の空隙部とを備えたことを特徴とする。   The reactor according to the present invention is formed in an E shape, and is attached to a first iron core portion having a central protrusion, two protrusions at both ends, and a bottom iron core, and the first iron core. A second iron core, a winding wound around a central protrusion formed in the first iron core, end surfaces of two protrusions at both ends of the first iron core, and the first iron core A close contact portion formed by attaching at least a part of an end surface of the central projection portion of the first core portion, a central projection portion of the first iron core portion, a part of the second iron core portion, A first magnetic path composed of a protrusion at one end of the first iron core, a part of the bottom iron core of the first iron core, a protrusion at the center of the first iron core, A second magnetic path composed of a part of the iron core part 2, a protrusion at the other end of the first iron core part, and a part of the bottom iron core of the first iron core part; Road and second Magnetic saturation formed by a long hole or a slit provided in each of the paths, or in the vicinity of the close contact portion of the common magnetic path of the first magnetic path and the second magnetic path or in the vicinity of the transition portion to the bottom iron core And a gap for adjusting characteristics.

この発明に係るリアクタは、上記構成により、鉄心に磁気飽和特性を調整するための空隙部を設けても、リアクタの剛性が低下せずに、振動、騒音を低減できる。   With the above configuration, the reactor according to the present invention can reduce vibration and noise without reducing the rigidity of the reactor even if a gap for adjusting magnetic saturation characteristics is provided in the iron core.

実施の形態１．
図１乃至図１１は実施の形態１を示す図で、図１はリアクタ２０の斜視図、図２はリアクタ２０の断面図、図３はリアクタ２０の磁気回路を示す断面図、図４はリアクタ２０の組立方法を示す断面図、図５はリアクタ２０の振動の周波数特性を示す図、図６乃至図１１は変形例のリアクタ２０の断面図である。 Embodiment 1 FIG.
1 to 11 are diagrams showing the first embodiment, FIG. 1 is a perspective view of the reactor 20, FIG. 2 is a sectional view of the reactor 20, FIG. 3 is a sectional view showing a magnetic circuit of the reactor 20, and FIG. FIG. 5 is a diagram showing frequency characteristics of vibration of the reactor 20, and FIGS. 6 to 11 are sectional views of a reactor 20 according to a modification.

図１に示すように、リアクタ２０は、Ｅ型形状の第１の鉄心部１と、Ｉ型形状の第２の鉄心部２と、第１の鉄心部１に巻装される巻線３とを備える。第１の鉄心部１は、突起部１０ａ、突起部１０ｂ、突起部１０ｃを有し、巻線３は突起部１０ｂに巻装され、スロット４に収納されている。突起部１０ｂの端面内側には、磁気回路の磁気飽和特性を調整し、所定のインダクタンスとするための空隙部８が設けられている。   As shown in FIG. 1, the reactor 20 includes an E-shaped first iron core portion 1, an I-shaped second iron core portion 2, and a winding 3 wound around the first iron core portion 1. Is provided. The first iron core portion 1 has a protrusion 10 a, a protrusion 10 b, and a protrusion 10 c, and the winding 3 is wound around the protrusion 10 b and stored in the slot 4. On the inner side of the end face of the protrusion 10b, a gap 8 is provided for adjusting the magnetic saturation characteristics of the magnetic circuit to obtain a predetermined inductance.

図２に示すように、リアクタ２０は、第１の鉄心部１に巻装される巻線３を電気的に絶縁する絶縁部５を備える。第１の鉄心部１は、電磁鋼板（厚さ、０．１５〜０．５ｍｍ）を一枚一枚積層してＥ型形状に構成される。第２の鉄心部２は、第１の鉄心部１と同様に電磁鋼板を積層してＩ型形状に構成される。第１の鉄心部１に巻線３が巻装され、スロット４に巻線３が収容される。絶縁部５は、非磁性体で構成され、第１の鉄心部１と、第２の鉄心部２と、巻線３とを電気的に絶縁する。Ｅ型形状を成す第１の鉄心部１には、突起部１０ａ、突起部１０ｂ、突起部１０ｃが設けられ、突起部１０ｂに巻線３が巻装される。   As shown in FIG. 2, the reactor 20 includes an insulating portion 5 that electrically insulates the winding 3 wound around the first iron core portion 1. The first iron core portion 1 is formed in an E shape by laminating electromagnetic steel plates (thickness, 0.15 to 0.5 mm) one by one. The second iron core portion 2 is formed in an I-shape by laminating electromagnetic steel sheets in the same manner as the first iron core portion 1. The winding 3 is wound around the first iron core portion 1, and the winding 3 is accommodated in the slot 4. The insulating part 5 is made of a nonmagnetic material and electrically insulates the first iron core part 1, the second iron core part 2, and the winding 3. The first iron core portion 1 having an E shape is provided with a protruding portion 10a, a protruding portion 10b, and a protruding portion 10c, and the winding 3 is wound around the protruding portion 10b.

Ｅ型形状を成す第１の鉄心部１の端面（突起部１０ａ、突起部１０ｂ、突起部１０ｃの端面）と、Ｉ型形状を成す第２の鉄心部２の端面とを密着させた密着部６を設けるとともに、Ｅ型形状を成す第１の鉄心部１の中央の突起部１０ｂ端面部の内部に、突起部１０ｂ端面方向に長い長孔で形成した空隙部８を設けた構成としている。長孔の空隙部８の長手方向両端部に、電磁鋼板の厚さ（０．１５〜０．５ｍｍ）と同程度の薄肉鉄心部１３を設ける。   A close contact portion in which an end surface of the first iron core portion 1 having an E shape (end surfaces of the protrusion portion 10a, the protrusion portion 10b, and the protrusion portion 10c) and an end surface of the second iron core portion 2 having an I shape are in close contact with each other. 6 and a gap 8 formed by a long slot extending in the direction of the end face of the protrusion 10b is provided inside the end face of the protrusion 10b at the center of the first iron core 1 having an E shape. Thin-walled iron cores 13 having the same thickness as that of the electromagnetic steel sheet (0.15 to 0.5 mm) are provided at both ends in the longitudinal direction of the gap 8 of the long hole.

リアクタ２０に電圧が印加されると、巻線３に電流が流れる。巻線３に電流が流れると、図３に示すように、第１の磁路１４ａ及び第２の磁路１４ｂに磁束が流れる。図３に示す磁束の流れは、電圧が交流であるから、図示の方向と、逆の方向とが交互に繰り返される。リアクタ２０のインダクタンスＬは、次式で表わされる。
Ｌ＝（４πμｓＳＮ２）１０−７／ｌｇ・・・（１）
ここで、
Ｌ：リアクタ２０のインダクタンス［Ｈ］
μｓ：空気の比透磁率
Ｓ：空隙部８の長手方向の断面積［ｍ２］
Ｎ：巻線３の巻数
ｌｇ：空隙部８の長さ（磁束が流れる方向）［ｍ］
従って、空隙部８の長さｌｇを、選択することにより、所定のインダクタンスＬにすることができる。 When a voltage is applied to the reactor 20, a current flows through the winding 3. When a current flows through the winding 3, as shown in FIG. 3, a magnetic flux flows through the first magnetic path 14a and the second magnetic path 14b. In the flow of magnetic flux shown in FIG. 3, since the voltage is alternating current, the illustrated direction and the opposite direction are repeated alternately. The inductance L of the reactor 20 is expressed by the following equation.
L = (4πμ s SN 2 ) 10 −7 / l g (1)
here,
L: Reactor 20 inductance [H]
μ s : relative permeability of air S: cross-sectional area in the longitudinal direction of the gap 8 [m 2 ]
N: number of turns l g of the winding 3: length of the gap portion 8 (the direction of magnetic flux flow) [m]
Accordingly, the length l g of the gap portion 8, by selecting, can be predetermined inductance L.

図２に示すリアクタ２０は、空隙部８が第１の鉄心部１の突起部１０ｂの内部にあり、突起部１０ｂの端面が第２の鉄心部２に密着しているため（密着部６）、従来のものより剛性が向上する。   In the reactor 20 shown in FIG. 2, the gap 8 is inside the protrusion 10b of the first iron core 1, and the end surface of the protrusion 10b is in close contact with the second iron core 2 (contact 6). The rigidity is improved as compared with the conventional one.

第１の鉄心部１と、第２の鉄心部２との固定方法について、説明する。第１の鉄心部１の突起部１０ａ及び突起部１０ｃと、第２の鉄心部２との固定は、溶接又は接着による。また、第１の鉄心部１の突起部１０ｂと、第２の鉄心部２との固定は、接着又は圧入による。図４に第１の鉄心部１の突起部１０ｂと、第２の鉄心部２とを圧入により固定する方法の一例を示す。   A method for fixing the first iron core portion 1 and the second iron core portion 2 will be described. The protrusions 10a and 10c of the first iron core 1 and the second iron core 2 are fixed by welding or adhesion. Further, the protrusion 10b of the first iron core portion 1 and the second iron core portion 2 are fixed by adhesion or press-fitting. FIG. 4 shows an example of a method for fixing the protruding portion 10b of the first iron core portion 1 and the second iron core portion 2 by press-fitting.

リアクタ２０の振動の周波数特性を、従来のものと図２の構成のものについて測定し、測定結果を図５に示す。図５では、横軸が周波数、縦軸が振動（加速度）であり、従来のリアクタを破線、図２のリアクタ２０を実線で示す。図５に示すように、従来のリアクタの振動の低次のピーク周波数がＡ点付近にあるのに対し、図２のリアクタ２０では、Ａ点の周波数の約倍の周波数に相当するＢ点付近に振動の低次のピーク周波数が移動していることがわかる。これは、例えば、空気調和機の筐体の共振周波数がＡ点付近にあり、従来のリアクタでは共振して空気調和機の振動が大きくなるが、図２のリアクタ２０にすれば、低次のピーク周波数がＢ点付近に移動するため共振を避けることができ、空気調和機の振動が小さくなることを意味する。   The frequency characteristics of the vibration of the reactor 20 are measured for the conventional one and the structure shown in FIG. 2, and the measurement results are shown in FIG. In FIG. 5, the horizontal axis represents frequency, the vertical axis represents vibration (acceleration), the conventional reactor is indicated by a broken line, and the reactor 20 of FIG. 2 is indicated by a solid line. As shown in FIG. 5, the low-order peak frequency of the vibration of the conventional reactor is in the vicinity of the point A, whereas in the reactor 20 in FIG. 2, the vicinity of the point B corresponding to a frequency about twice the frequency of the point A. It can be seen that the low-order peak frequency of vibration moves. This is because, for example, the resonance frequency of the casing of the air conditioner is in the vicinity of point A. In the conventional reactor, the resonance of the air conditioner increases and the vibration of the air conditioner increases. However, if the reactor 20 in FIG. Resonance can be avoided because the peak frequency moves to the vicinity of point B, which means that the vibration of the air conditioner is reduced.

以上のように、磁気飽和を調整するための空隙部８を突起部１０ｂ端面部の内部に形成し、第１の鉄心部の端面と第２の鉄心部の端面を密着させた密着部６を設けることにより、密着部６により第１の鉄心部１と第２の鉄心部２が保持される構造となるため、リアクタ２０の剛性が向上し、リアクタ２０の振動、騒音を低減できる。   As described above, the gap portion 8 for adjusting the magnetic saturation is formed inside the end surface portion of the protrusion 10b, and the close contact portion 6 in which the end surface of the first iron core portion and the end surface of the second iron core portion are in close contact with each other. By providing the first core portion 1 and the second core portion 2 by the close contact portion 6, the rigidity of the reactor 20 is improved, and the vibration and noise of the reactor 20 can be reduced.

また、リアクタ２０の剛性が向上し、リアクタ２０の振動の固有値における主要なピーク周波数が高くなるため、例えば空気調和機の筐体の共振点を外れ、空気調和機の振動が低減する効果がある。   Moreover, since the rigidity of the reactor 20 is improved and the main peak frequency in the eigenvalue of the vibration of the reactor 20 is increased, for example, the resonance point of the casing of the air conditioner is removed, and the vibration of the air conditioner is reduced. .

なお、空隙部８の構成は、図２の構成に限定されるものではなく、例えば、図６に示すように、Ｅ型形状を成す第１の鉄心部１の、中央の突起部１０ｂの端面部を凹面とする切り欠きを設ける構成にしてもよい。切り欠きで構成された空隙部８の両端部には、図２と同様、電磁鋼板の厚さ（０．１５〜０．５ｍｍ）と同程度の薄肉鉄心部１３を設ける。また、この薄肉鉄心部１３の端面が密着部６となる。中央の突起部１０ｂにおける第２の鉄心部２との密着部６の面積は、図２のものより小さくなるが、中央の突起部１０ｂにおける第２の鉄心部２との密着部６の存在により、リアクタ２０の剛性が向上し、リアクタ２０の振動、騒音を低減できる。また、リアクタ２０の剛性が向上し、リアクタ２０の振動の固有値における主要なピーク周波数が高くなるため、例えば空気調和機の筐体の共振点を外れ、空気調和機の振動が低減する効果がある。尚、図６以下では、巻線３、絶縁部５の図示を省略している。   Note that the configuration of the gap 8 is not limited to the configuration of FIG. 2. For example, as shown in FIG. 6, the end surface of the central protrusion 10 b of the first iron core 1 having an E shape. You may make it the structure which provides the notch which makes a part a concave surface. As in FIG. 2, thin core portions 13 having the same thickness as that of the electromagnetic steel sheet (0.15 to 0.5 mm) are provided at both ends of the gap portion 8 constituted by the notches. Further, the end surface of the thin-walled iron core portion 13 becomes the close contact portion 6. The area of the close contact portion 6 with the second iron core portion 2 in the central protrusion portion 10b is smaller than that of FIG. 2, but the presence of the close contact portion 6 with the second iron core portion 2 in the central protrusion portion 10b. The rigidity of the reactor 20 is improved, and the vibration and noise of the reactor 20 can be reduced. Moreover, since the rigidity of the reactor 20 is improved and the main peak frequency in the eigenvalue of the vibration of the reactor 20 is increased, for example, the resonance point of the casing of the air conditioner is removed, and the vibration of the air conditioner is reduced. . In FIG. 6 and subsequent figures, the winding 3 and the insulating portion 5 are not shown.

また、図７で示すように第１の鉄心部１の突起部１０ｂの端面の中央部に電磁鋼板の厚さ（０．３５〜０．５ｍｍ）の２倍程度の幅の薄肉鉄心部１３を設け、薄肉鉄心部１３の端面を第２の鉄心部２に密着させて密着部６を形成し、その両側にスロット４に連通する切り欠きを設けて、この切り欠きを空隙部８としてもよい。   Further, as shown in FIG. 7, a thin core portion 13 having a width about twice the thickness (0.35 to 0.5 mm) of the electromagnetic steel plate is provided at the center portion of the end face of the projection portion 10 b of the first core portion 1. It is also possible that the end face of the thin-walled iron core portion 13 is brought into close contact with the second iron core portion 2 to form the close-contact portion 6, and notches communicating with the slots 4 are provided on both sides thereof, and the notches may be used as the gap portions 8. .

また、空隙部８は、Ｅ型形状を成す第１の鉄心部１の位置に限定されるものではなく、第２の鉄心部２に設けてもよい。例えば、図８に示すように、第１の鉄心部１における中央の突起部１０ｂに対向するＩ型形状を成す第２の鉄心部２の端面付近に、第２の鉄心部２の長手方向に空隙部８を形成してもよい。空隙部８の長手方向の長さは、突起部１０ｂの端面の長さより若干長くする。このケースは、薄肉鉄心部１３は不要である。   Further, the gap 8 is not limited to the position of the first core part 1 having the E shape, and may be provided in the second core part 2. For example, as shown in FIG. 8, in the longitudinal direction of the second core portion 2, in the vicinity of the end surface of the second core portion 2 having an I-shape facing the central protrusion 10 b in the first core portion 1. The gap 8 may be formed. The length of the gap 8 in the longitudinal direction is slightly longer than the length of the end face of the protrusion 10b. In this case, the thin core portion 13 is not necessary.

また、図９に示すように、第２の鉄心部２の第１の鉄心部１の突起部１０ｂの端面に対向する部分に、凹面となる切り欠きを設け、この切り欠きを空隙部８とする構成にしてもよい。この場合、空隙部８の長手方向の長さは、第１の鉄心部１の突起部１０ｂの端面の長さより、電磁鋼板の厚さの倍程度短くする。   Further, as shown in FIG. 9, a notch that is a concave surface is provided in a portion of the second iron core portion 2 that faces the end surface of the protruding portion 10 b of the first iron core portion 1. You may make it the structure to carry out. In this case, the length of the gap portion 8 in the longitudinal direction is shorter than the length of the end face of the protrusion 10b of the first iron core portion 1 by about twice the thickness of the electromagnetic steel sheet.

また、図１０、図１１で示すように、第１の鉄心部１と第２の鉄心部２の両方に跨って空隙部８を設けることによっても構成できる。   Further, as shown in FIGS. 10 and 11, it can be configured by providing a gap 8 across both the first iron core portion 1 and the second iron core portion 2.

また、本実施の形態は、第１の鉄心部１をＥ型形状、第２の鉄心部２をＩ型形状に構成したが、これに限定されるものではなく、例えば、第１の鉄心部１、第２の鉄心部２共、Ｅ型で構成することによっても同様の効果が得られる。   In the present embodiment, the first iron core portion 1 is formed in an E shape and the second iron core portion 2 is formed in an I shape. However, the present invention is not limited to this. For example, the first iron core portion is formed. The same effect can be obtained by configuring both the first and second iron core portions 2 with the E type.

実施の形態２．
図１２乃至図１９は実施の形態２を示す図で、図１２はリアクタ２０の断面図、図１３乃至１９は変形例のリアクタ２０の断面図である。実施の形態１では、Ｅ型形状を成す第１の鉄心部１の中央の突起部１０ｂの端面と、Ｉ型形状を成す第２の鉄心部２の端面を密着させた密着部６を設けるとともに、密着部６付近のＥ型形状を成す第１の鉄心部１の中央の突起部１０ｂの端面付近に長孔で形成した空隙部８を設けた構成としたが、図１２に示すように、本実施の形態では、Ｅ型形状を成す第１の鉄心部１の３つの突起部１０ａ、突起部１０ｂ、突起部１０ｃの内、中央の突起部１０ｂの根本部（底部鉄心１５への移行部）に突起部１０ｂの長手方向（第２の鉄心部２に対し垂直方向）に対して垂直方向にスリットで構成した空隙部８を設けると共に、空隙部８の長手方向の両側は薄肉鉄心部１３により連結して構成されている。 Embodiment 2. FIG.
12 to 19 show the second embodiment, FIG. 12 is a cross-sectional view of the reactor 20, and FIGS. 13 to 19 are cross-sectional views of a reactor 20 according to a modification. In the first embodiment, the close contact portion 6 is provided in which the end surface of the central protrusion portion 10b of the first iron core portion 1 having the E shape and the end surface of the second iron core portion 2 having the I shape are in close contact with each other. The gap portion 8 formed by a long hole is provided in the vicinity of the end face of the central protrusion 10b of the first iron core portion 1 in the vicinity of the close contact portion 6 as shown in FIG. In the present embodiment, among the three protrusions 10a, protrusions 10b, and protrusions 10c of the first core part 1 having the E shape, the base part of the center protrusion 10b (the transition part to the bottom core 15). ) Are provided with gaps 8 constituted by slits in the vertical direction with respect to the longitudinal direction of the protrusions 10b (perpendicular to the second iron core part 2), and the both sides of the gap 8 in the longitudinal direction are thin-walled iron core parts 13 Are connected to each other.

以上のように、第１の鉄心部１の突起部１０ｂの根本部に空隙部８を構成することにより、３箇所の密着部６により第１の鉄心部１と第２の鉄心部２が保持される構造となるため、リアクタ２０の剛性が向上し、振動、騒音を低減できる。また、リアクタ２０の剛性が向上し、リアクタ２０の振動の周波数特性における主要なピーク周波数が高くなるため、例えば空気調和機の筐体の共振点を外れ、空気調和機の振動が低減する効果がある。   As described above, the first core portion 1 and the second core portion 2 are held by the three close contact portions 6 by configuring the gap portion 8 at the base portion of the protruding portion 10b of the first core portion 1. Therefore, the rigidity of the reactor 20 is improved and vibration and noise can be reduced. Further, since the rigidity of the reactor 20 is improved and the main peak frequency in the frequency characteristics of the vibration of the reactor 20 is increased, for example, the effect of reducing the vibration of the air conditioner by moving away from the resonance point of the casing of the air conditioner. is there.

尚、薄肉鉄心部１３は少なくとも１つあればよく、また、空隙部８を形成するスリットは、複数のスリットにより構成してもよい。   It should be noted that at least one thin iron core portion 13 is sufficient, and the slit forming the gap 8 may be composed of a plurality of slits.

また、空隙部８は、図１３〜図１７に示すように、突起部１０ｂの根本部以外の、任意の位置に形成してもよい。   Moreover, as shown in FIGS. 13-17, the space | gap part 8 may be formed in arbitrary positions other than the root part of the projection part 10b.

図１３のリアクタ２０は、片側に薄肉鉄心部１３を有する空隙部８を突起部１０ｂの長手方向中央付近に設けたものである。空隙部８はスロット４に連通している。   The reactor 20 of FIG. 13 is provided with a gap portion 8 having a thin core portion 13 on one side in the vicinity of the center in the longitudinal direction of the protruding portion 10b. The gap 8 communicates with the slot 4.

図１４のリアクタ２０は、中央に薄肉鉄心部１３を有する空隙部８を、突起部１０ｂの長手方向の途中の根元部側付近に設けたものである。分割された空隙部８は、夫々スロット４に連通している。   The reactor 20 of FIG. 14 is provided with a gap portion 8 having a thin core portion 13 in the center in the vicinity of the root portion in the middle of the projection portion 10b in the longitudinal direction. The divided gap portions 8 communicate with the slots 4 respectively.

図１５のリアクタ２０は、３分割された空隙部８を、突起部１０ｂの長手方向の途中の根元部側付近に設けたものである。空隙部８の間、スロット４と空隙部８の間に、薄肉鉄心部１３を有する。   The reactor 20 of FIG. 15 is provided with the three-divided gap portion 8 in the vicinity of the root portion in the middle of the protruding portion 10b in the longitudinal direction. A thin iron core portion 13 is provided between the gap portions 8 and between the slot 4 and the gap portion 8.

図１６のリアクタ２０は、３分割された空隙部８を、突起部１０ｂの長手方向の中央部付近に設けたもので、中央の空隙部８は空隙長が両側の空隙部８よりも短くなっている。空隙部８の間の２箇所に薄肉鉄心部１３を有し、両側の空隙部８はスロット４に連通している。中央の空隙部８の空隙長を両側の空隙部８の空隙長より短くすることにより、磁束が突起部１０ｂの中央付近を通るので、漏れ磁束を小さくでき、リアクタ２０の損失を低減できる。また、漏れ磁束による、他の機器への影響を抑制できる。   The reactor 20 shown in FIG. 16 is provided with a three-divided gap portion 8 in the vicinity of the central portion in the longitudinal direction of the protrusion 10b. The gap length at the center is shorter than the gap portions 8 on both sides. ing. The thin-walled iron core portions 13 are provided at two positions between the gap portions 8, and the gap portions 8 on both sides communicate with the slot 4. By making the gap length of the central gap portion 8 shorter than the gap lengths of the gap portions 8 on both sides, the magnetic flux passes near the center of the protrusion 10b, so that the leakage flux can be reduced and the loss of the reactor 20 can be reduced. Moreover, the influence on other apparatuses by leakage magnetic flux can be suppressed.

図１７のリアクタ２０は、図１６のものと同じであるが、３分割された空隙部８の中、外側の空隙部８がスロット４に連通していない点だけが、図１６のものと異なる。   The reactor 20 in FIG. 17 is the same as that in FIG. 16, but differs from that in FIG. 16 only in that the outer space 8 is not in communication with the slot 4 in the space 8 divided into three. .

また、空隙部８は、突起部１０ｂに限定されるものではなく、図１８に示すように、第１の鉄心部１の突起部１０ａ、突起部１０ｂ、突起部１０ｃの３箇所に空隙部８を分散させてもよい。   Moreover, the space | gap part 8 is not limited to the protrusion part 10b, but as shown in FIG. 18, the space | gap part 8 is provided in three places, the protrusion part 10a of the 1st iron core part 1, the protrusion part 10b, and the protrusion part 10c. May be dispersed.

図１８のリアクタ２０は、第１の鉄心部１の突起部１０ａ、突起部１０ｂ、突起部１０ｃの３箇所に空隙部８を分散して設けている。第１の磁路１４ａ（図３参照）には、突起部１０ｂの空隙部８と突起部１０ａの空隙部８とが直列に存在する。また、第２の磁路１４ｂ（図３参照）には、突起部１０ｂの空隙部８と突起部１０ｃの空隙部８とが直列に存在する。従って、リアクタ２０のインダクタンスを一定にするために、図１８の各空隙部８の空隙長は、図２、３の空隙部８の空隙長ｌｇの１／２に設定される。 In the reactor 20 of FIG. 18, the gaps 8 are distributed and provided at three locations of the protrusion 10 a, the protrusion 10 b, and the protrusion 10 c of the first iron core 1. In the first magnetic path 14a (see FIG. 3), the gap 8 of the protrusion 10b and the gap 8 of the protrusion 10a exist in series. Further, in the second magnetic path 14b (see FIG. 3), the gap 8 of the protrusion 10b and the gap 8 of the protrusion 10c exist in series. Therefore, in order to make the inductance of the reactor 20 constant, the gap length of each gap portion 8 in FIG. 18 is set to 1/2 of the gap length l g of the gap portion 8 in FIGS.

また、図１９に示すように、突起部１０ｂの長手方向に複数の空隙部８を設けてもよい。   Moreover, as shown in FIG. 19, you may provide the several space | gap part 8 in the longitudinal direction of the projection part 10b.

図１９のリアクタ２０は、突起部１０ｂの長手方向に二つの空隙部８を配置している。この場合も、リアクタ２０のインダクタンスを一定にするために、図１８の各空隙部８の空隙長は、図２、３の空隙部８の空隙長ｌｇの１／２に設定される。 In the reactor 20 of FIG. 19, two gaps 8 are arranged in the longitudinal direction of the protrusion 10b. Again, in order to make the inductance of the reactor 20 constant, the gap length of each gap portion 8 in FIG. 18 is set to 1/2 of the gap length l g of the gap portion 8 in FIGS.

実施の形態３．
図２０、２１は実施の形態３を示す図で、図２０はリアクタ２０の断面図、図２１は変形例のリアクタ２０の断面図である。本実施の形態では、図２０に示すように、Ｅ型形状を成す第１の鉄心部１の突起部１０ｂに突起部１０ｂの長手方向に対して垂直方向にスリットで形成された空隙部８を設けるとともに、空隙部８の中央部にくびれ部８ａ（幅１〜２ｍｍ）を設けることにより、空隙部８の中央部の空隙長を小さくなるように構成している。 Embodiment 3 FIG.
20 and 21 are diagrams showing the third embodiment. FIG. 20 is a cross-sectional view of the reactor 20, and FIG. In the present embodiment, as shown in FIG. 20, a gap 8 formed by a slit in the direction perpendicular to the longitudinal direction of the projection 10b is formed on the projection 10b of the first iron core portion 1 having an E shape. At the same time, the constriction 8a (width 1 to 2 mm) is provided at the center of the gap 8 so that the gap length at the center of the gap 8 is reduced.

以上のように、空隙部８を構成することにより、突起部１０ｂを流れる磁束の漏れを低減して、効率のよいリアクタ２０を実現できる。また、３箇所の密着部６により第１の鉄心部１と第２の鉄心部２が保持される構造となるため、リアクタの剛性が向上し、振動、騒音を低減できる。また、リアクタ２０の剛性が向上し、リアクタ２０の振動の周波数特性における主要なピーク周波数が高くなるため、例えば空気調和機の筐体の共振点を外れ、空気調和機の振動が低減する効果がある。   As described above, by configuring the gap 8, leakage of magnetic flux flowing through the protrusion 10 b can be reduced, and an efficient reactor 20 can be realized. In addition, since the first iron core portion 1 and the second iron core portion 2 are held by the three close contact portions 6, the rigidity of the reactor is improved, and vibration and noise can be reduced. Further, since the rigidity of the reactor 20 is improved and the main peak frequency in the frequency characteristics of the vibration of the reactor 20 is increased, for example, the effect of reducing the vibration of the air conditioner by moving away from the resonance point of the casing of the air conditioner. is there.

尚、空隙部８の形状は、図２０に限定されるものではなく、例えば、図２１に示すように突起部１０ｂの中心に向かって、滑らかに小さくなる形状とすることによっても同様の効果が得られる。   Note that the shape of the gap 8 is not limited to that shown in FIG. 20. For example, a similar effect can be obtained by making the gap 8 smoothly smaller toward the center of the protrusion 10 b as shown in FIG. 21. can get.

実施の形態４．
図２２乃至図２７は実施の形態４を示す図で、図２２はリアクタ２０の断面図、図２３乃至２７は変形例のリアクタ２０の断面図である。本実施の形態では、図２２に示すように、Ｅ型形状を成す第１の鉄心部１の端面とＩ型形状を成す第２の鉄心部２の端面を密着させた密着部６を設けるとともに、Ｉ型形状を成す第２の鉄心部２の長手方向に対して垂直方向、且つ、第１の鉄心部１のスロット４と対向する位置にスリットで構成した二つの空隙部８を設けると共に、空隙部８の長手方向の両側を薄肉鉄心部１３により連結した構成となっている。 Embodiment 4 FIG.
FIGS. 22 to 27 are diagrams showing the fourth embodiment. FIG. 22 is a cross-sectional view of the reactor 20, and FIGS. In the present embodiment, as shown in FIG. 22, a close contact portion 6 is provided in which the end surface of the first iron core portion 1 having an E shape is in close contact with the end surface of the second iron core portion 2 having an I shape. Two gaps 8 formed of slits are provided in a direction perpendicular to the longitudinal direction of the second iron core portion 2 having an I-shape and opposed to the slots 4 of the first iron core portion 1; The both sides of the gap portion 8 in the longitudinal direction are connected by the thin core portion 13.

以上のように、第２の鉄心部２に二つの空隙部８を形成することにより、３箇所の密着部６により第１の鉄心部１と第２の鉄心部２が保持される構造となるため、リアクタ２０の剛性が向上し、振動、騒音を低減できる。また、リアクタ２０の剛性が向上し、リアクタ２０の振動の周波数特性における主要なピーク周波数が高くなるため、例えば空気調和機の筐体の共振点を外れ、空気調和機の振動が低減する効果がある。   As described above, by forming the two gap portions 8 in the second iron core portion 2, the first iron core portion 1 and the second iron core portion 2 are held by the three close contact portions 6. Therefore, the rigidity of the reactor 20 is improved, and vibration and noise can be reduced. Further, since the rigidity of the reactor 20 is improved and the main peak frequency in the frequency characteristics of the vibration of the reactor 20 is increased, for example, the effect of reducing the vibration of the air conditioner by moving away from the resonance point of the casing of the air conditioner. is there.

尚、Ｉ型形状を成す第２の鉄心部２の長手方向に対して垂直方向、且つ、第１の鉄心部１のスロット４と対向する位置にスリットで構成した空隙部８を設ける代わりに、図２３に示すように、Ｅ型形状を成す第１の鉄心部１の両側の突起部１０ａ、突起部１０ｃと対向するＩ型形状を成す第２の鉄心部２の領域に磁束の経路を妨げるように斜めにスリットで構成した空隙部８を設けてもよい。   In addition, instead of providing the gap portion 8 formed of a slit in a direction perpendicular to the longitudinal direction of the second iron core portion 2 having the I shape and facing the slot 4 of the first iron core portion 1, As shown in FIG. 23, the path of the magnetic flux is obstructed in the region of the I-shaped second iron core portion 2 facing the protruding portions 10a and 10c on both sides of the first iron core portion 1 forming the E shape. As described above, the gap portion 8 formed of a slit obliquely may be provided.

また、図２４に示すように、Ｅ型形状を成す第１の鉄心部１の中央の突起部１０ｂと対向するＩ型形状を成す第２の鉄心部２の領域に磁束の経路を妨げるように斜めにスリットで構成した空隙部８を設けてもよい。   Further, as shown in FIG. 24, the path of the magnetic flux is obstructed in the region of the second iron core portion 2 forming the I-shape facing the central protrusion 10b of the first iron core portion 1 forming the E shape. You may provide the space | gap part 8 comprised with the slit diagonally.

また、図２５で示すように、Ｅ型形状を成す第１の鉄心部１の突起部１０ａ、突起部１０ｂ、突起部１０ｃとをつなぐ底部鉄心１５のスロット４と対向する領域に磁束の経路を妨げる方向にスリットで構成した空隙部８を設けてもよい。   Further, as shown in FIG. 25, a magnetic flux path is provided in a region facing the slot 4 of the bottom iron core 15 that connects the protrusion 10a, the protrusion 10b, and the protrusion 10c of the first iron core portion 1 having an E shape. You may provide the space | gap part 8 comprised with the slit in the direction to prevent.

また、図２６で示すように、Ｅ型形状を成す第１の鉄心部１の突起部１０ａ、突起部１０ｂ、突起部１０ｃとをつなぐ底部鉄心１５と、中央の突起部１０ｂと対向する領域に磁束の経路を妨げる方向にスリットで構成した空隙部８を設けてもよい。   In addition, as shown in FIG. 26, in a region facing the bottom core 15 that connects the protrusion 10a, the protrusion 10b, and the protrusion 10c of the first iron core 1 having an E shape, and the central protrusion 10b. You may provide the space | gap part 8 comprised with the slit in the direction which blocks | prevents the path | route of magnetic flux.

また、図２７に示すように、Ｅ型形状を成す第１の鉄心部１の突起部１０ａ、突起部１０ｂ、突起部１０ｃとをつなぐ底部鉄心１５と、両側の突起部１０ａ、突起部１０ｃと対向する領域に磁束の経路を妨げる方向に斜めにスリットで構成した空隙部８を設けてもよい。   Further, as shown in FIG. 27, the bottom iron core 15 that connects the protrusion 10a, the protrusion 10b, and the protrusion 10c of the first iron core 1 having an E shape, and the protrusions 10a and 10c on both sides You may provide the space | gap part 8 comprised with the slit diagonally in the direction which blocks | prevents the path | route of magnetic flux in the area | region which opposes.

以上の説明では、Ｅ型形状を成す第１の鉄心部１と、Ｉ型形状を成す第２の鉄心部２との組合せによりリアクタ２０の鉄心を形成する例を説明したが、Ｅ型形状の鉄心の組合せでリアクタ２０の鉄心を形成してもよい。   In the above description, the example in which the iron core of the reactor 20 is formed by the combination of the first iron core portion 1 having an E shape and the second iron core portion 2 having an I shape has been described. The iron core of the reactor 20 may be formed by a combination of iron cores.

実施の形態１を示す図で、リアクタ２０の斜視図である。FIG. 5 shows the first embodiment, and is a perspective view of a reactor 20. 実施の形態１を示す図で、リアクタ２０の断面図である。FIG. 5 shows the first embodiment and is a cross-sectional view of a reactor 20. 実施の形態１を示す図で、リアクタ２０の磁気回路を示す断面図である。FIG. 5 is a cross-sectional view showing the magnetic circuit of the reactor 20 according to the first embodiment. 実施の形態１を示す図で、リアクタ２０の組立方法を示す断面図である。FIG. 5 shows the first embodiment, and is a cross-sectional view showing a method for assembling the reactor 20. 実施の形態１を示す図で、リアクタ２０の振動の周波数特性を示す図である。FIG. 5 is a diagram illustrating the first embodiment and is a diagram illustrating frequency characteristics of vibration of the reactor 20. 実施の形態１を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 1, and is sectional drawing of the reactor 20 of a modification. 実施の形態１を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 1, and is sectional drawing of the reactor 20 of a modification. 実施の形態１を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 1, and is sectional drawing of the reactor 20 of a modification. 実施の形態１を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 1, and is sectional drawing of the reactor 20 of a modification. 実施の形態１を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 1, and is sectional drawing of the reactor 20 of a modification. 実施の形態１を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 1, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、リアクタ２０の断面図である。FIG. 5 shows the second embodiment and is a cross-sectional view of the reactor 20. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態２を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 2, and is sectional drawing of the reactor 20 of a modification. 実施の形態３を示す図で、リアクタ２０の断面図である。FIG. 5 shows the third embodiment and is a cross-sectional view of the reactor 20. 実施の形態３を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 3, and is sectional drawing of the reactor 20 of a modification. 実施の形態４を示す図で、リアクタ２０の断面図である。FIG. 10 is a diagram showing the fourth embodiment, and is a cross-sectional view of the reactor 20. 実施の形態４を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 4, and is sectional drawing of the reactor 20 of a modification. 実施の形態４を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 4, and is sectional drawing of the reactor 20 of a modification. 実施の形態４を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 4, and is sectional drawing of the reactor 20 of a modification. 実施の形態４を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 4, and is sectional drawing of the reactor 20 of a modification. 実施の形態４を示す図で、変形例のリアクタ２０の断面図である。It is a figure which shows Embodiment 4, and is sectional drawing of the reactor 20 of a modification.

符号の説明Explanation of symbols

１ 第１の鉄心部、２ 第２の鉄心部、３ 巻線、４ スロット、５ 絶縁部、６ 密着部、８ 空隙部、８ａ くびれ部、１０ａ 突起部、１０ｂ 突起部、１０ｃ 突起部、１３ 薄肉鉄心部、１４ａ 第１の磁路、１４ｂ 第２の磁路、１５ 底部鉄心。   DESCRIPTION OF SYMBOLS 1 1st iron core part, 2nd 2nd iron core part, 3 winding, 4 slots, 5 insulation part, 6 contact part, 8 space | gap part, 8a constriction part, 10a protrusion part, 10b protrusion part, 10c protrusion part, 13 Thin core part, 14a 1st magnetic path, 14b 2nd magnetic path, 15 bottom iron core.

Claims (3)

Ｅ型形状で形成され、中央の突起部と、両端の二つの突起部と、底部鉄心とを有する第１の鉄心部と、
この第１の鉄心部に付け合わされる第２の鉄心部と、
前記第１の鉄心部に形成される中央の突起部に巻装される巻線と、
前記第１の鉄心部の両端の二つの突起部の端面、及び前記第１の鉄心部の中央の突起部の端面の少なくとも一部が前記第２の鉄心部に付け合わされて形成される密着部と、
前記第１の鉄心部の中央の突起部と、前記第２の鉄心部の一部と、前記第１の鉄心部の一方の端の突起部と、前記第１の鉄心部の底部鉄心の一部とで構成される第１の磁路と、
前記第１の鉄心部の中央の突起部と、前記第２の鉄心部の一部と、前記第１の鉄心部の他方の端の突起部と、前記第１の鉄心部の底部鉄心の一部とで構成される第２の磁路と、
前記第１の磁路と前記第２の磁路との夫々に、又は前記第１の磁路と前記第２の磁路との共通の磁路の前記密着部付近もしくは前記底部鉄心への移行部付近に設けられ、長孔又はスリットで形成された磁気飽和特性調整用の空隙部とを備えたことを特徴とするリアクタ。 A first iron core portion formed in an E shape, having a central protrusion, two protrusions at both ends, and a bottom iron core;
A second iron core portion attached to the first iron core portion;
A winding wound around a central protrusion formed on the first iron core;
An adhesion portion formed by attaching at least part of the end surfaces of the two protrusions at both ends of the first iron core and the end surface of the central protrusion of the first iron core to the second iron core. When,
A central protrusion of the first iron core, a part of the second iron core, a protrusion at one end of the first iron core, and a bottom iron core of the first iron core; A first magnetic path composed of a portion,
A central protrusion of the first iron core, a part of the second iron core, a protrusion at the other end of the first iron core, and a bottom iron core of the first iron core; A second magnetic path composed of a portion,
Transition to the vicinity of the close contact portion or the bottom iron core of the first magnetic path and the second magnetic path, or the common magnetic path of the first magnetic path and the second magnetic path And a void portion for adjusting magnetic saturation characteristics formed in the vicinity of the portion and formed by a long hole or a slit. Ｅ型形状で形成され、中央の突起部と、両端の二つの突起部と、底部鉄心とを有する第１の鉄心部と、
この第１の鉄心部に付け合わされる第２の鉄心部と、
前記第１の鉄心部に形成される中央の突起部に巻装される巻線と、
前記第１の鉄心部の突起部の端面が前記第２の鉄心部に付け合わされて形成される密着部と、
前記第１の鉄心部の中央の突起部に設けられ、３個以上に分割されると共に、中央部の空隙長を他の空隙長よりも小さくした、前記中央の突起部の長手方向に直交する方向に長孔又はスリットで形成された磁気飽和特性調整用の空隙部とを備えたことを特徴とするリアクタ。 A first iron core portion formed in an E shape and having a central protrusion, two protrusions at both ends, and a bottom iron core;
A second iron core portion attached to the first iron core portion;
A winding wound around a central protrusion formed on the first iron core;
A close contact portion formed by attaching an end surface of the protrusion of the first core portion to the second core portion;
It is provided in the central protrusion of the first iron core and is divided into three or more, and the gap length of the center is smaller than other gap lengths, and is orthogonal to the longitudinal direction of the center protrusion. And a void portion for adjusting magnetic saturation characteristics formed by a long hole or a slit in the direction. Ｅ型形状で形成され、中央の突起部と、両端の二つの突起部と、底部鉄心とを有する第１の鉄心部と、
この第１の鉄心部に付け合わされる第２の鉄心部と、
前記第１の鉄心部に形成される中央の突起部に巻装される巻線と、
前記第１の鉄心部の突起部の端面が前記第２の鉄心部に付け合わされて形成される密着部と、
前記第１の鉄心部の中央の突起部に設けられ、中央部の空隙長を他の空隙長よりも小さくした、前記中央の突起部の長手方向に直交する方向に長孔又はスリットで形成された磁気飽和特性調整用の空隙部とを備えたことを特徴とするリアクタ。 A first iron core portion formed in an E shape and having a central protrusion, two protrusions at both ends, and a bottom iron core;
A second iron core portion attached to the first iron core portion;
A winding wound around a central protrusion formed on the first iron core;
A close contact portion formed by attaching an end surface of the protrusion of the first core portion to the second core portion;
Provided in the central protrusion of the first iron core, and formed by a long hole or slit in a direction perpendicular to the longitudinal direction of the central protrusion, the gap length of the center being smaller than other gap lengths. A reactor for adjusting magnetic saturation characteristics.
JP2005355616A 2005-12-09 2005-12-09 Reactor Pending JP2007165346A (en)

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JP2009141111A (en) * 2007-12-06 2009-06-25 Daikin Ind Ltd Reactor
JP2010093948A (en) * 2008-10-08 2010-04-22 Mitsubishi Electric Corp Electromagnetic actuator
JP2013080950A (en) * 2012-12-20 2013-05-02 Mitsubishi Electric Corp Ignition coil for internal combustion engine
JP2014225516A (en) * 2013-05-15 2014-12-04 Ｎｅｃトーキン株式会社 Reactor
JP2015046591A (en) * 2013-07-29 2015-03-12 Ｊｆｅスチール株式会社 Design method and manufacturing method for high frequency reactor
JP2015141997A (en) * 2014-01-28 2015-08-03 Ｊｆｅスチール株式会社 Reactor core, and reactor using the same
JP2015142122A (en) * 2014-01-30 2015-08-03 Ｊｆｅスチール株式会社 reactor
JP2016051873A (en) * 2014-09-02 2016-04-11 田淵電機株式会社 Core structure, choke coil for interleave and transformer
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KR102560081B1 (en) * 2022-10-17 2023-07-27 천복기계(주) Water Cooled High Frequency Welding Machine

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Cited By (10)

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Publication number Priority date Publication date Assignee Title
JP2009141111A (en) * 2007-12-06 2009-06-25 Daikin Ind Ltd Reactor
JP2010093948A (en) * 2008-10-08 2010-04-22 Mitsubishi Electric Corp Electromagnetic actuator
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