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JP2013247218A - Reactor device - Google Patents

Reactor device Download PDF

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Publication number
JP2013247218A
JP2013247218A JP2012119615A JP2012119615A JP2013247218A JP 2013247218 A JP2013247218 A JP 2013247218A JP 2012119615 A JP2012119615 A JP 2012119615A JP 2012119615 A JP2012119615 A JP 2012119615A JP 2013247218 A JP2013247218 A JP 2013247218A
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outer iron
reactor
vibration
iron type
type reactor
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Yoshinori Inukai
佳典 犬飼
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Priority to JP2012119615A priority Critical patent/JP2013247218A/en
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Abstract

PROBLEM TO BE SOLVED: To obtain a reactor device with high heat transfer efficiency of a reactor and a heat sink and a high vibration-proof property.SOLUTION: The reactor device comprises: an outer iron type reactor 10 that fastens upper and lower outer iron sections 13, 14 housing a coil 11 with a bolt 16 and a nut 17, and whose outer shape is formed into a short column; a heat sink 21 in which at least a lower half of the outer iron type reactor is embedded, and that has an embedded hole 21b and a heat radiation fin 21a whose bottom face and side face contact a bottom face and a side face of the embedded outer iron type reactor via sheet-like heat transfer vibration-proof materials 23, 24 having compressibility; a vibration-proof rubber bush 40 in which a projection section of the bolt projecting upward of the outer iron type reactor is inserted; and a mounting metal fitting 26 holding the vibration-proof rubber bush at a center, screwed to the heat sink on both ends, and pressing and fixing the outer iron type reactor in the embedded hole of the heat sink via the vibration-proof rubber bush.

Description

本発明は、太陽光発電システムのパワーコンディショナー等のパワー半導体装置に用いられるリアクトル装置に関する。   The present invention relates to a reactor device used in a power semiconductor device such as a power conditioner of a solar power generation system.

従来、並設された一対のコイルにそれぞれ挿通された第1のコアと、これらの第1のコアの各端部の外側にそれぞれ配置され、ほぼロ字状のコアユニットを構成する第2のコアと、前記コアユニットを挟持し、前記第2のコアを前記第1のコアに圧着する挟持部材と、この挟持部材と前記第2のコアとの間に介装され、弾性を有しかつ含浸剤が染み込まない材質からなる防振材とを備えたリアクトルが開示されている(例えば、特許文献1参照)。   2. Description of the Related Art Conventionally, a first core inserted through a pair of coils arranged side by side, and a second core that is disposed outside each end of each of the first cores and constitutes a substantially square core unit. A core, a sandwiching member that sandwiches the core unit, and crimps the second core to the first core, and is interposed between the sandwiching member and the second core, has elasticity, and A reactor including a vibration-proof material made of a material that does not soak the impregnating agent is disclosed (for example, see Patent Document 1).

特開2004−319679号公報JP 2004-319679 A

しかしながら、上記従来の技術によれば、コアがコイルや防振材の内側に配置されるので、ヒートシンクへの伝熱性が悪い、という問題がある。   However, according to the above conventional technique, the core is disposed inside the coil or the vibration isolator, so that there is a problem that the heat transfer to the heat sink is poor.

本発明は、上記に鑑みてなされたものであって、リアクトルとヒートシンクの伝熱効率が高く、かつ、防振性が高いリアクトル装置を得ることを目的とする。   This invention is made | formed in view of the above, Comprising: It aims at obtaining the reactor apparatus with high heat-transfer efficiency of a reactor and a heat sink, and high vibration-proof property.

上述した課題を解決し、目的を達成するために、本発明は、コイルを収容した上下外鉄部をボルト及びナットで締結し、外形を短柱状に形成した外鉄型リアクトルと、前記外鉄型リアクトルの少なくとも下半分が埋設され、埋設された前記外鉄型リアクトルの底面及び側面に、圧縮性を有するシート状の伝熱防振材を介して底面及び側面が接触する埋設穴、及び放熱フィンを有するヒートシンクと、前記外鉄型リアクトルの上方へ突出する前記ボルトの突出部が挿通される防振ゴムブッシュと、前記防振ゴムブッシュを中央部に保持し、両端部が前記ヒートシンクにねじ止めされ、前記防振ゴムブッシュを介して前記外鉄型リアクトルを前記ヒートシンクの埋設穴内へ押圧、固定する取付金具と、を備えることを特徴とする。   In order to solve the above-described problems and achieve the object, the present invention includes an outer iron type reactor in which upper and lower outer iron portions accommodating coils are fastened with bolts and nuts, and an outer shape is formed in a short column shape, and the outer iron A buried hole in which at least the lower half of the reactor is buried, and the bottom and side surfaces of the outer iron type reactor buried therein are in contact with the bottom and side surfaces via a sheet-like heat transfer vibration-proof material having compressibility. A heat sink having fins, an anti-vibration rubber bush through which the protruding portion of the bolt protruding above the outer iron type reactor is inserted, the anti-vibration rubber bush held at the center, and both ends screwed to the heat sink And a mounting bracket that presses and fixes the outer iron type reactor into the embedded hole of the heat sink via the anti-vibration rubber bush.

本発明によれば、リアクトルとヒートシンクの伝熱効率が高く、かつ、防振性が高いリアクトル装置が得られる、という効果を奏する。   Advantageous Effects of Invention According to the present invention, there is an effect that a reactor device having high heat transfer efficiency between the reactor and the heat sink and having high vibration isolation can be obtained.

図1は、本発明のリアクトル装置の実施の形態を示す断面図である。FIG. 1 is a cross-sectional view showing an embodiment of a reactor device of the present invention. 図2は、実施の形態のリアクトル装置の平面図である。FIG. 2 is a plan view of the reactor device according to the embodiment. 図3は、実施の形態の外鉄型リアクトルの底部の伝熱防振材を示す平面図である。FIG. 3 is a plan view showing the heat transfer vibration isolator at the bottom of the outer iron type reactor according to the embodiment. 図4は、実施の形態の外鉄型リアクトルの側部の伝熱防振材を示す平面図である。FIG. 4 is a plan view showing a heat transfer vibration isolator on the side portion of the outer iron type reactor according to the embodiment.

以下に、本発明にかかるリアクトル装置の実施の形態を図面に基づいて詳細に説明する。なお、この実施の形態によりこの発明が限定されるものではない。   Hereinafter, embodiments of a reactor device according to the present invention will be described in detail with reference to the drawings. Note that the present invention is not limited to the embodiments.

実施の形態
図1は、本発明のリアクトル装置の実施の形態を示す断面図であり、図2は、実施の形態のリアクトル装置の平面図であり、図3は、実施の形態の外鉄型リアクトルの底部の伝熱防振材を示す平面図であり、図4は、実施の形態の外鉄型リアクトルの側部の伝熱防振材を示す平面図である。
Embodiment FIG. 1 is a cross-sectional view showing an embodiment of the reactor device of the present invention, FIG. 2 is a plan view of the reactor device of the embodiment, and FIG. 3 is a shell type of the embodiment. It is a top view which shows the heat-transfer vibration-proof material of the bottom part of a reactor, and FIG. 4 is a top view which shows the heat-transfer vibration-proof material of the side part of the outer iron type reactor of embodiment.

図1〜図4に示すように、実施の形態の外鉄型リアクトル10は、短円筒形のコイル11と、内部にコイル11を収容した円形キャップ状の上外鉄部13及び下外鉄部14と、上下外鉄部13、14、コイル11及び後述の取付金具26の中心部を貫通し、ナット17にねじ込まれて上下外鉄部13、14、コイル11を締結して一体化するボルト16と、を有している。   As shown in FIGS. 1 to 4, the outer iron type reactor 10 of the embodiment includes a short cylindrical coil 11, a circular cap-shaped upper outer iron portion 13 and a lower outer iron portion that house the coil 11 therein. 14, the upper and lower outer iron portions 13 and 14, the coil 11, and the center portion of the mounting bracket 26 described later, and are screwed into the nut 17 to fasten the upper and lower outer iron portions 13 and 14 and the coil 11 to be integrated. 16.

上下外鉄部13、14は、圧粉鉄心等による磁性材料により形成されている。下外鉄部14の中心部外側には、凹部14aが形成され、ボルト16の頭部16aの高さは、凹部14aの深さと略同一であり、頭部16aは凹部14a内に収まっている。外鉄型リアクトル10の外形は、短円柱状(短柱状)となっている。なお、外鉄型リアクトル10の外形は、短四角柱状等の各種形状をとる場合もある。   The upper and lower outer iron portions 13 and 14 are made of a magnetic material such as a dust core. A concave portion 14a is formed outside the center portion of the lower outer iron portion 14, and the height of the head portion 16a of the bolt 16 is substantially the same as the depth of the concave portion 14a, and the head portion 16a is accommodated in the concave portion 14a. . The outer shape of the outer iron type reactor 10 is a short columnar shape (short columnar shape). The outer shape of the outer iron type reactor 10 may take various shapes such as a short quadrangular prism shape.

実施の形態のリアクトル装置20は、一側に多数の放熱フィン21aが設けられ他側に外鉄型リアクトル10の少なくとも下半分が埋設される円形の埋設穴21bが設けられたアルミダイキャスト製のヒートシンク21と、埋設穴21bの底面と外鉄型リアクトル10の底面との間に配置された圧縮性、非接着性を有する円形スポンジシート状の底部伝熱防振材23(図3参照)と、圧縮性、非接着性を有する細長スポンジシート状の伝熱防振材を丸めて円筒状に形成され、埋設穴21bの側面と外鉄型リアクトル10の側面との間に配置された側部伝熱防振材24(図4参照)と、外鉄型リアクトル10を埋設穴21b内に押圧、固定する後述の取付金具26と、を備えている。   The reactor device 20 according to the embodiment is made of an aluminum die cast in which a large number of radiating fins 21a are provided on one side and a circular embedding hole 21b in which at least the lower half of the outer iron type reactor 10 is embedded on the other side. A heat sink 21, a circular sponge sheet-shaped bottom heat transfer vibration-proof material 23 (see FIG. 3) having compressibility and non-adhesiveness, disposed between the bottom surface of the embedded hole 21b and the bottom surface of the outer iron type reactor 10. A side portion disposed between the side surface of the embedded hole 21b and the side surface of the outer iron type reactor 10 is formed by rolling a long sponge sheet-like heat transfer vibration isolating material having compressibility and non-adhesiveness into a cylindrical shape. The heat-transfer vibration-proof material 24 (refer FIG. 4) and the below-mentioned attachment metal fitting 26 which presses and fixes the outer iron type | mold reactor 10 in the embedding hole 21b are provided.

なお、外鉄型リアクトル10の外形が短四角柱状等の形状をとる場合は、角部にコーナーRを形成することにより、伝熱性及び作業性を損なうことなく、細長スポンジシート状の側部伝熱防振材24を用いることができる。   In the case where the outer shape of the outer iron type reactor 10 is a short quadrangular prism shape or the like, by forming the corners R at the corners, the side transfer of the elongated sponge sheet shape is performed without impairing the heat transfer and workability. A thermal vibration isolator 24 can be used.

次に、実施の形態のリアクトル装置20の特徴的な構成を説明する。取付金具26の中央には、孔26bが設けられている。孔26bには、防振ゴムブッシュ40が環状溝40bを介して嵌合、保持されている。防振ゴムブッシュ40には、外鉄型リアクトル10の上方へ突出するボルト16の突出部が挿通される孔40aが設けられている。   Next, the characteristic structure of the reactor apparatus 20 of embodiment is demonstrated. A hole 26 b is provided in the center of the mounting bracket 26. An anti-vibration rubber bush 40 is fitted and held in the hole 26b via an annular groove 40b. The anti-vibration rubber bush 40 is provided with a hole 40a through which the protruding portion of the bolt 16 protruding upward of the outer iron type reactor 10 is inserted.

ボルト16の突出部を防振ゴムブッシュ40の孔40aに挿通し、ばね鋼製の取付金具26の両端部の取付部26aを、止めねじ27によりヒートシンク21の他側にねじ止めすれば、取付金具26が撓み、防振ゴムブッシュ40及びナット17を介して外鉄型リアクトル10をヒートシンク21の埋設穴21b内に押圧し、固定する。   If the protruding portion of the bolt 16 is inserted into the hole 40a of the vibration-proof rubber bush 40 and the mounting portions 26a at both ends of the spring steel mounting bracket 26 are screwed to the other side of the heat sink 21 with a set screw 27, the mounting The metal fitting 26 is bent, and the outer iron type reactor 10 is pressed into the embedded hole 21b of the heat sink 21 through the vibration isolating rubber bush 40 and the nut 17 and fixed.

以上説明したように、実施の形態のリアクトル装置20は、外鉄型リアクトル10を、底部伝熱防振材23、側部伝熱防振材24、防振ゴムブッシュ40及びばね鋼製の取付金具26を介して、ヒートシンク21の埋設穴21b内に保持したので、外鉄型リアクトル10とヒートシンク21の伝熱効率が高く、かつ、防振性が高い。   As described above, in the reactor device 20 of the embodiment, the outer iron type reactor 10 is attached to the bottom heat transfer vibration isolation material 23, the side heat transfer vibration isolation material 24, the vibration isolation rubber bush 40 and the spring steel. Since it was hold | maintained in the embedding hole 21b of the heat sink 21 via the metal fitting 26, the heat-transfer efficiency of the outer iron type reactor 10 and the heat sink 21 is high, and vibration-proof property is high.

特に、外鉄型リアクトル10の、底面全面、埋設穴21bに埋設された側面全周からヒートシンク21に伝熱されるので、伝熱性及び放熱性が高く、外鉄型リアクトル10を低温に保つことができる。また、非接着性の底部伝熱防振材23及び側部伝熱防振材24を用いているので、製品リサイクル時の素材分離が容易である。   In particular, since heat is transferred to the heat sink 21 from the entire bottom surface of the outer iron type reactor 10 and the entire circumference of the side surface embedded in the embedded hole 21b, heat transfer and heat dissipation are high, and the outer iron type reactor 10 can be kept at a low temperature. it can. Further, since the non-adhesive bottom heat transfer vibration isolating material 23 and the side heat transfer vibration isolating material 24 are used, it is easy to separate materials during product recycling.

外鉄型リアクトル10の直上近傍には、電子回路基板30が配置され、2本のリアクトル導線32が、電子回路基板30を通して、電子回路基板30上に配置された端子台31に接続されている。外鉄型リアクトル10が低温に保たれているので、電子回路基板30を、外鉄型リアクトル10の近傍(数cm以内)に配置することができ、リアクトル導線32の配線長さを短くすることができる。そのため、製品投影面積を小さくすることができ、また、電磁性ノイズの輻射ノイズを低減するための電流ループ面積を縮小することができる。   An electronic circuit board 30 is arranged in the vicinity immediately above the outer iron type reactor 10, and two reactor lead wires 32 are connected to the terminal block 31 arranged on the electronic circuit board 30 through the electronic circuit board 30. . Since the outer iron type reactor 10 is kept at a low temperature, the electronic circuit board 30 can be disposed in the vicinity (within several cm) of the outer iron type reactor 10, and the wiring length of the reactor conducting wire 32 is shortened. Can do. Therefore, the product projected area can be reduced, and the current loop area for reducing the radiation noise of electromagnetic noise can be reduced.

10 外鉄型リアクトル
11 コイル
13 上外鉄部
14 下外鉄部
14a 凹部
16 ボルト
16a 頭部
17 ナット
20 リアクトル装置
21 ヒートシンク
21a 放熱フィン
21b 埋設穴
23 底部伝熱防振材(伝熱防振材)
24 側部伝熱防振材(伝熱防振材)
26 取付金具
26a 取付部
26b 孔
27 止めねじ
30 電子回路基板
31 端子台
32 リアクトル導線
40 防振ゴムブッシュ
40a 孔
40b 環状溝
DESCRIPTION OF SYMBOLS 10 Outer iron type reactor 11 Coil 13 Upper outer iron part 14 Lower outer iron part 14a Recessed part 16 Bolt 16a Head 17 Nut 20 Reactor device 21 Heat sink 21a Radiation fin 21b Embedded hole 23 Bottom heat transfer vibration isolator (heat transfer anti-vibration material) )
24 Side heat transfer anti-vibration material (heat transfer anti-vibration material)
26 mounting bracket 26a mounting portion 26b hole 27 set screw 30 electronic circuit board 31 terminal block 32 reactor lead wire 40 anti-vibration rubber bush 40a hole 40b annular groove

Claims (2)

コイルを収容した上下外鉄部をボルト及びナットで締結し、外形を短柱状に形成した外鉄型リアクトルと、
前記外鉄型リアクトルの少なくとも下半分が埋設され、埋設された前記外鉄型リアクトルの底面及び側面に、圧縮性を有するシート状の伝熱防振材を介して底面及び側面が接触する埋設穴、及び放熱フィンを有するヒートシンクと、
前記外鉄型リアクトルの上方へ突出する前記ボルトの突出部が挿通される防振ゴムブッシュと、
前記防振ゴムブッシュを中央部に保持し、両端部が前記ヒートシンクにねじ止めされ、前記防振ゴムブッシュを介して前記外鉄型リアクトルを前記ヒートシンクの埋設穴内へ押圧、固定する取付金具と、
を備えることを特徴とするリアクトル装置。
An outer iron type reactor in which the upper and lower outer iron parts containing the coil are fastened with bolts and nuts, and the outer shape is formed into a short column shape,
An embedded hole in which at least the lower half of the outer iron type reactor is embedded, and the bottom surface and the side surface of the embedded outer iron reactor are in contact with the bottom surface and the side surface of the embedded outer core reactor through a sheet-like heat transfer vibration-proof material having compressibility. And a heat sink having heat dissipating fins;
An anti-vibration rubber bush through which the protruding portion of the bolt protruding above the outer iron type reactor is inserted;
A mounting bracket that holds the vibration isolating rubber bush at the center, both ends are screwed to the heat sink, and presses and fixes the outer iron type reactor into the embedded hole of the heat sink via the vibration isolating rubber bush,
A reactor device comprising:
前記取付金具は、ばね鋼により形成されていることを特徴とする請求項1に記載のリアクトル装置。   The reactor device according to claim 1, wherein the mounting bracket is made of spring steel.
JP2012119615A 2012-05-25 2012-05-25 Reactor device Pending JP2013247218A (en)

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JP2012119615A JP2013247218A (en) 2012-05-25 2012-05-25 Reactor device

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JP2012119615A JP2013247218A (en) 2012-05-25 2012-05-25 Reactor device

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110828118A (en) * 2019-11-28 2020-02-21 滁州博格韦尔电气有限公司 Chopping reactor special for tramcar
JP2023014065A (en) * 2021-07-16 2023-01-26 オート モーティブ パワー インコーポレーテッド Cold plate for power electronic system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110828118A (en) * 2019-11-28 2020-02-21 滁州博格韦尔电气有限公司 Chopping reactor special for tramcar
JP2023014065A (en) * 2021-07-16 2023-01-26 オート モーティブ パワー インコーポレーテッド Cold plate for power electronic system

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