JP2021086839A - Resin-sealed electric component - Google Patents

Abstract

To provide a resin-sealed electric component which can easily secure insulation while achieving both reduction in size and high heat resistance.SOLUTION: A resin-sealed electric component includes a first electric component 2 and a second electric component 3 adjacent to the first electric component 2. A first bus bar 4 is connected to one electrode 2a of the first electric component 2, and a second bus bar 5 is connected to the other electrode 2b of the first electric component 2. The first bus bar 4 extends to a side face 2c from the electrode 2a of the first electric component 2, a first insulating member 8, a heat dissipation member 7, and a second insulating member 9 are positioned from the side of the side face 2c between the side face 2c of the first electric component 2 and the first bus bar 4, a third bus bar 6 is connected to the second electric component 3, and the second insulating member 9 has an extension part 93 that extends to a direction of the second electric component 3 from the side face 2c of the first electric component 2, and is interposed between the first electric component 2 and the second electric component 3 and between the second electric component 3 and the third bus bar 6.SELECTED DRAWING: Figure 1

Description

この発明は、電子部品を樹脂で封止した樹脂封止電気部品に関する。 The present invention relates to a resin-sealed electric component in which an electronic component is sealed with a resin.

特許文献１には、用途の異なるコンデンサ素子を同一ケース内に収容したコンデンサモジュールが記載されている。 Patent Document 1 describes a capacitor module in which capacitor elements having different uses are housed in the same case.

特開２０１５−１４９８０５号公報Japanese Unexamined Patent Publication No. 2015-149805

近年、小型化と高耐熱の両立を求められることがある。特許文献１では、コンデンサモジュールとは別に冷却装置（流路形成体）を設けてコンデンサモジュールの冷却を図っているが、より高温下での使用に耐え得るように放熱部材をコンデンサモジュールに組み込むことも考えられる。 In recent years, both miniaturization and high heat resistance may be required. In Patent Document 1, a cooling device (flow path forming body) is provided separately from the condenser module to cool the condenser module, but a heat radiating member is incorporated in the condenser module so that it can withstand use at a higher temperature. Is also possible.

ただ、既に複数のコンデンサ素子が収容されているケース内にさらに放熱部材を収容しようとすると絶縁が必要な個所が増え、必要な絶縁部材や工数も増加してしまう。 However, if an attempt is made to further accommodate a heat radiating member in a case in which a plurality of capacitor elements are already accommodated, the number of places where insulation is required increases, and the required insulating member and man-hours also increase.

そこで本発明は、小型化と高耐熱を両立しつつ、簡単に絶縁を確保することができる樹脂封止電気部品の提供を目的とする。 Therefore, an object of the present invention is to provide a resin-sealed electric component capable of easily ensuring insulation while achieving both miniaturization and high heat resistance.

本発明の樹脂封止電気部品は、第１電子部品２と、第１電子部品２に隣接する第２電子部品３とを備え、第１電子部品２の一方の電極２ａに第１バスバー４が接続され、第１電子部品２の他方の電極２ｂに第２バスバー５が接続されており、第１バスバー４が第１電子部品２の電極２ａから側面２ｃに延びており、第１電子部品２の側面２ｃと第１バスバー４との間には、側面２ｃから近い順に第１絶縁部材８、放熱部材７、第２絶縁部材９が位置しており、第２電子部品３には第３バスバー６が接続されており、第２絶縁部材９が、第１電子部品２の側面２ｃから第２電子部品３の方向へと延びており、第１電子部品２と第２電子部品３との間、及び第２電子部品３と第３バスバー６との間にそれぞれ介在する延出部９３を有していることを特徴としている。 The resin-sealed electric component of the present invention includes a first electronic component 2 and a second electronic component 3 adjacent to the first electronic component 2, and a first bus bar 4 is attached to one electrode 2a of the first electronic component 2. The second bus bar 5 is connected to the other electrode 2b of the first electronic component 2, the first bus bar 4 extends from the electrode 2a of the first electronic component 2 to the side surface 2c, and the first electronic component 2 The first insulating member 8, the heat radiating member 7, and the second insulating member 9 are located between the side surface 2c and the first bus bar 4 in the order from the side surface 2c, and the third electronic component 3 has a third bus bar. 6 is connected, and the second insulating member 9 extends from the side surface 2c of the first electronic component 2 toward the second electronic component 3, and is between the first electronic component 2 and the second electronic component 3. , And an extension portion 93 interposed between the second electronic component 3 and the third bus bar 6, respectively.

上記樹脂封止電気部品では、第２電子部品３が複数であって、第２電子部品３間に延出部９３が介在していることが好ましい。 In the resin-sealed electric component, it is preferable that there are a plurality of second electronic components 3 and an extending portion 93 is interposed between the second electronic components 3.

また、第１絶縁部材８と放熱部材７と第２絶縁部材９とが一体とされていることが好ましい。 Further, it is preferable that the first insulating member 8, the heat radiating member 7, and the second insulating member 9 are integrated.

さらに、第２バスバー５と第２絶縁部材９とが一体とされていることが好ましい。 Further, it is preferable that the second bus bar 5 and the second insulating member 9 are integrated.

本発明の樹脂封止電気部品は、第１電子部品と第２電子部品とを備えており、また、第１電子部品と第１バスバーとの間に放熱部材を備えていることから、小型化と高耐熱の両立を図ることができる。また、第２絶縁部材によって、第１バスバーと放熱部材、第１電子部品と第２電子部品、第２電子部品と第３バスバーの絶縁を確保することができるため、絶縁に必要な部品点数と工数の削減を図ることができる。 The resin-sealed electric component of the present invention includes a first electronic component and a second electronic component, and also includes a heat radiating member between the first electronic component and the first bus bar, and thus is miniaturized. And high heat resistance can be achieved at the same time. Further, since the second insulating member can secure the insulation between the first bus bar and the heat radiating member, the first electronic component and the second electronic component, and the second electronic component and the third bus bar, the number of parts required for insulation can be increased. The number of man-hours can be reduced.

また、第２電子部品が複数であって、第２電子部品間に延出部が介在している場合、第２電子部品間の絶縁も簡単に確保することができる。 Further, when there are a plurality of second electronic components and an extension portion is interposed between the second electronic components, insulation between the second electronic components can be easily ensured.

第１絶縁部材と放熱部材と第２絶縁部材とが一体とされている場合、組み立て作業が簡単になる。 When the first insulating member, the heat radiating member, and the second insulating member are integrated, the assembly work becomes easy.

第２バスバーと第２絶縁部材とが一体とされている場合も組み立て作業が簡単になる。 The assembly work is also simplified when the second bus bar and the second insulating member are integrated.

この発明の一実施形態に係る樹脂封止電気部品を示す分解斜視図である。It is an exploded perspective view which shows the resin-sealed electric component which concerns on one Embodiment of this invention. 樹脂を省略した樹脂封止電気部品の斜視図である。It is a perspective view of the resin-sealed electric component which omitted the resin. 第２絶縁部材を背面且つ下から見上げた斜視図である。It is a perspective view which looked up at the 2nd insulating member from the back and the bottom. 樹脂封止電気部品の要部断面図である。It is sectional drawing of the main part of a resin-sealed electric component.

次に、この発明の樹脂封止電気部品の一実施形態を図面に基づいて詳細に説明する。この発明の樹脂封止電気部品１は、図１及び図２に示すように、第１電子部品２と、第１電子部品２と用途が異なる第２電子部品３と、第１バスバー４と、第２バスバー５と、第３バスバー６と、放熱部材７と、第１絶縁部材８と、第２絶縁部材９と、これら部品を収容するケース１０と、これら部品を樹脂封止する樹脂１１（図４参照）とを備えている。以下、上記の各部品について説明していくが、説明における「上下」の概念は、製造時、より具体的には樹脂充填時におけるものであって、必ずしも使用時の上下を規定するものではない。 Next, an embodiment of the resin-sealed electric component of the present invention will be described in detail with reference to the drawings. As shown in FIGS. 1 and 2, the resin-sealed electric component 1 of the present invention includes a first electronic component 2, a second electronic component 3 having a different use from the first electronic component 2, a first bus bar 4, and the like. A second bus bar 5, a third bus bar 6, a heat radiating member 7, a first insulating member 8, a second insulating member 9, a case 10 for accommodating these components, and a resin 11 for resin-sealing these components ( (See FIG. 4). Hereinafter, each of the above parts will be described, but the concept of "upper and lower" in the description is at the time of manufacturing, more specifically at the time of resin filling, and does not necessarily define the upper and lower parts at the time of use. ..

第１電子部品２は、絶縁性のフィルムの表面に金属を蒸着した金属化フィルムを巻回することでなるフィルムコンデンサであって、図１に示すように、軸方向両端面に金属を溶射してなる電極部２ａ、２ｂがそれぞれ形成されている。この第１電子部品２は、軸方向から見ると俵状、具体的には、４つのコーナー部にＲ（アール）が設けられており、電極部２ａ、２ｂ間（周囲面）に平坦部２ｃ１と曲面部２ｃ２とからなる側面２ｃを有している。そして、平坦部２ｃ１を互いに対向させるようにして複数（図においては５個）並設されている。 The first electronic component 2 is a film capacitor obtained by winding a metallized film on which metal is vapor-deposited on the surface of an insulating film, and as shown in FIG. 1, metal is sprayed on both end surfaces in the axial direction. The electrode portions 2a and 2b are formed respectively. The first electronic component 2 has a bale shape when viewed from the axial direction, specifically, R (R) is provided at four corner portions, and a flat portion 2c1 is provided between the electrode portions 2a and 2b (peripheral surface). It has a side surface 2c composed of a curved surface portion 2c2 and a curved surface portion 2c2. A plurality of (five in the figure) flat portions 2c1 are arranged side by side so as to face each other.

第２電子部品３は、第１電子部品２と同様に、絶縁性のフィルムの表面に金属を蒸着した金属化フィルムを巻回することでなるフィルムコンデンサであって、軸方向両端面に金属を溶射してなる電極部３ａ、３ｂがそれぞれ形成されている。この第２電子部品３も、軸方向から見ると俵状、具体的には、４つのコーナー部にＲ（アール）が設けられており、電極部３ａ、３ｂ間（軸方向外周）に平坦部３ｃ１と曲面部３ｃ２とからなる側面３ｃを有している。そして、曲面部３ｃ２同士を互いに対向させるようにして複数（図においては２個）並設されている。第２電子部品３の電極部３ａ、３ｂには各バスバーと接続するためのリード線３１がそれぞれ接続されている。なお、本実施形態では、第２電子部品３はＹコンデンサとして用いられている。 Similar to the first electronic component 2, the second electronic component 3 is a film capacitor obtained by winding a metallized film on which metal is vapor-deposited on the surface of an insulating film, and metal is placed on both end surfaces in the axial direction. The electrode portions 3a and 3b formed by spraying are formed, respectively. The second electronic component 3 also has a bale shape when viewed from the axial direction, specifically, R (R) is provided at four corners, and a flat portion is provided between the electrode portions 3a and 3b (outer circumference in the axial direction). It has a side surface 3c composed of 3c1 and a curved surface portion 3c2. Then, a plurality of (two in the figure) are arranged side by side so that the curved surface portions 3c2 face each other. Lead wires 31 for connecting to each bus bar are connected to the electrode portions 3a and 3b of the second electronic component 3, respectively. In this embodiment, the second electronic component 3 is used as a Y capacitor.

なお、第１電子部品２の並設方向と第２電子部品３の並設方向とは略直交している。具体的には、第１電子部品２の並設方向は左右方向であるのに対して、第２電子部品３の並設方向は前後方向である。そして、第１電子部品２の電極部２ａ、２ｂは前後方向に向き、第２電子部品３の電極部３ａ、３ｂは上下方向に向いている。 The side-by-side direction of the first electronic component 2 and the side-by-side direction of the second electronic component 3 are substantially orthogonal to each other. Specifically, the side-by-side direction of the first electronic component 2 is the left-right direction, while the side-by-side direction of the second electronic component 3 is the front-rear direction. The electrode portions 2a and 2b of the first electronic component 2 are oriented in the front-rear direction, and the electrode portions 3a and 3b of the second electronic component 3 are oriented in the vertical direction.

第１バスバー４は、並設された第１電子部品２の側面２ｃ（曲面部２ｃ２）に重なる本体部４１と、本体部４１の前側の端部から下方（第１電子部品２の一方（前側）の電極部２ａ）に延びる垂直部４２と、垂直部４２の下端から下方に延びて電極部２ａとの接続に供される第１接続部４３と、同じく垂直部４２の下端から右方に延びて、２つの第２電子部品３のうちの一方（前側）の第２電子部品３の一方（上側）の電極部３ａとリード線３１を介して接続される第２接続部４４と、本体部４１の後ろ側の端部から上方に延びて図示しない外部機器との接続に供される第１外部接続部４５と、本体部４１の右側の端部から右方に延びて図示しない外部機器との接続に供される第２外部接続部４６とを備えている。 The first bus bar 4 has a main body 41 that overlaps the side surface 2c (curved surface 2c2) of the first electronic component 2 arranged side by side, and one of the first electronic components 2 (front side) below the front end of the main body 41. ), The vertical portion 42 extending downward from the lower end of the vertical portion 42 and the first connecting portion 43 extending downward from the lower end of the vertical portion 42 to be used for connecting to the electrode portion 2a, and also from the lower end of the vertical portion 42 to the right. A second connecting portion 44 extending and being connected to one (upper side) electrode portion 3a of one (upper side) of the second electronic component 3 of one (front side) of the two second electronic components 3 via a lead wire 31 and a main body. A first external connection portion 45 that extends upward from the rear end of the portion 41 and is used for connection with an external device (not shown), and an external device that extends to the right from the right end of the main body 41 and is not shown. It is provided with a second external connection portion 46 provided for connection with.

第２バスバー５は、第１電子部品２の他方の電極部２ｂに重なる本体部５１と、本体部５１の上端から上方に延びて図示しない外部機器との接続に供される第１外部接続部５２と、本体部５１の右側の端部から右方に延びて図示しない外部機器との接続に供される第２外部接続部５３とを備えている。 The second bus bar 5 is a first external connection portion that extends upward from the upper end of the main body portion 51 and is provided for connection with an external device (not shown) that overlaps with the other electrode portion 2b of the first electronic component 2. 52 and a second external connection portion 53 extending to the right from the right end portion of the main body portion 51 and being used for connection with an external device (not shown) are provided.

第１電子部品２の他方の電極部２ｂとの接続に供される第１接続部５１ａは、本体部５１に設けられている。具体的には、本体部５１を略Ｕ字状に切り抜くことで舌状の第１接続部５１ａを形成している。また、２つの第２電子部品３のうちの他方（後ろ側）の第２電子部品３の一方（上側）の電極部３ａとリード線３１を介して接続される第２接続部５１ｂは、本体部５１の右側の端部に設けられている。具体的には、本体部５１の右側の端部の下方に、リード線３１を通すためのスリットが設けられている。 The first connecting portion 51a provided for connecting the first electronic component 2 to the other electrode portion 2b is provided on the main body portion 51. Specifically, the tongue-shaped first connecting portion 51a is formed by cutting out the main body portion 51 in a substantially U-shape. Further, the second connecting portion 51b connected to the electrode portion 3a of one (upper side) of the second electronic component 3 of the other (rear side) of the two second electronic components 3 via the lead wire 31 is a main body. It is provided at the right end of the portion 51. Specifically, a slit for passing the lead wire 31 is provided below the right end of the main body 51.

ところで、第１バスバー４の第１外部接続部４５と、第２バスバー５の第１外部接続部５２とは一部が互いに重なり合っている（図２参照）。具体的には、外部機器との直接の当接箇所となる、第１バスバー４の第１外部接続部４５の先端（上方）と、第２バスバー５の第１外部接続部５２の先端（上方）とは互いに左右方向にずれている。一方で、第１バスバー４の第１外部接続部４５の基端（下方）と第２バスバー５の第１外部接続部５２の基端（下方）とは、ともに先端に比べて幅広とされており、後述する第２絶縁部材９の立ち上がり部９２を介して互いに重なり合っている。 By the way, a part of the first external connection portion 45 of the first bus bar 4 and the first external connection portion 52 of the second bus bar 5 overlap each other (see FIG. 2). Specifically, the tip (upper side) of the first external connection portion 45 of the first bus bar 4 and the tip end (upper side) of the first external connection portion 52 of the second bus bar 5, which are direct contact points with external devices. ) Are offset from each other in the left-right direction. On the other hand, both the base end (lower side) of the first external connection portion 45 of the first bus bar 4 and the base end (lower side) of the first external connection portion 52 of the second bus bar 5 are wider than the tips. They overlap each other via the rising portion 92 of the second insulating member 9, which will be described later.

また、第１バスバー４の第２外部接続部４６と、第２バスバー５の第２外部接続部５３についても一部が互いに重なり合っている。具体的には、第１バスバー４の第２外部接続部４６がケース１０を跨ぐために一度上方に盛り上がった後に下方へ延びる略鉤状であって、また、第２バスバー５の第２外部接続部５３についても同様の理由から略鉤状であって、第１バスバー４の第２外部接続部４６が、第２バスバー５の第２外部接続部５３に被さるようにして互いに重なり合っている。なお、外部機器との当接箇所となる先端については、互いに上下方向にずれている。 Further, a part of the second external connection portion 46 of the first bus bar 4 and the second external connection portion 53 of the second bus bar 5 also overlap each other. Specifically, the second external connection portion 46 of the first bus bar 4 has a substantially hook shape that once rises upward to straddle the case 10 and then extends downward, and the second external connection portion of the second bus bar 5 The 53 also has a substantially hook shape for the same reason, and the second external connection portion 46 of the first bus bar 4 overlaps with the second external connection portion 53 of the second bus bar 5 so as to cover the second external connection portion 53. It should be noted that the tips, which are the contact points with the external devices, are displaced from each other in the vertical direction.

第３バスバー６は、第２電子部品３の右側において平坦部３ｃ１と重なる本体部６１と、本体部６１の前後の端部からそれぞれ左方に延びて、第２電子部品３の他方（下側）の電極部３ｂとリード線３１を介して接続される第１接続部６２と、本体部６１の上端から右方に延びて図示しないグランド（ＧＮＤ）との接続に供される第１外部接続部６３とを備えている。この第１外部接続部６３についても、ケース１０を跨ぐために一度上方に盛り上がった後に下方へと延びる略鉤状とされている。 The third bus bar 6 extends to the left from the front and rear ends of the main body 61 that overlaps the flat portion 3c1 on the right side of the second electronic component 3, and the other (lower side) of the second electronic component 3. ), The first connection portion 62 connected via the lead wire 31, and the first external connection provided for connection with the ground (GND) not shown extending to the right from the upper end of the main body portion 61. It is provided with a unit 63. The first external connection portion 63 also has a substantially hook shape that rises upward once to straddle the case 10 and then extends downward.

上記各バスバー４、５、６は、例えば銅やアルミニウム等の金属板を所定の形状に切り抜き、適宜折曲加工を施すことで形成されている。 Each of the bus bars 4, 5 and 6 is formed by cutting out a metal plate such as copper or aluminum into a predetermined shape and appropriately bending it.

放熱部材７は、第１電子部品２の曲面部２ｃ２と重なる本体部７１と、本体部７１の後ろ側の端部から上方に延びて図示しない外部機器との接続に供される外部接続部７２とを備えている。 The heat radiating member 7 is an external connection portion 72 that extends upward from a rear end portion of the main body portion 71 and is provided for connection with an external device (not shown) that overlaps with the curved surface portion 2c2 of the first electronic component 2. And have.

本体部７１は、５個並設された第１電子部品２の全てに重なるように左右方向の長さが定められている。この放熱部材７も、例えば銅やアルミニウム等の金属板を所定の形状に切り抜き、適宜折曲加工を施すことで形成されており、導電性を有する。 The length of the main body 71 is determined in the left-right direction so as to overlap all of the five first electronic components 2 arranged side by side. The heat radiating member 7 is also formed by cutting out a metal plate such as copper or aluminum into a predetermined shape and appropriately bending it, and has conductivity.

第１絶縁部材８は、例えばセルロース系の電気絶縁材料からなる絶縁紙であって、放熱部材７の本体部７１より一回り大きな幅及び長さを有している。この第１絶縁部材８は、第１電子部品２の曲面部２ｃ２と対向している。換言すれば、第１絶縁部材８は、第１電子部品２の曲面部２ｃ２と放熱部材７の本体部７１との間に位置している。そして、第１電子部品２と放熱部材７との間の絶縁を確保している。 The first insulating member 8 is, for example, an insulating paper made of a cellulose-based electrically insulating material, and has a width and a length slightly larger than that of the main body 71 of the heat radiating member 7. The first insulating member 8 faces the curved surface portion 2c2 of the first electronic component 2. In other words, the first insulating member 8 is located between the curved surface portion 2c2 of the first electronic component 2 and the main body portion 71 of the heat radiating member 7. Then, the insulation between the first electronic component 2 and the heat radiating member 7 is secured.

第２絶縁部材９は、第１電子部品２の曲面部２ｃ２と重なる本体部９１と、本体部９１の後ろ側の端部から上方に延びて、第１バスバー４の第１外部接続部４５の基端と第２バスバー５の第１外部接続部５２の基端との間に介在し双方の絶縁を確保する立ち上がり部９２と、本体部９１の右側の端部から第２電子部品３の方向に延びる延出部９３とを備えている。 The second insulating member 9 extends upward from the main body portion 91 that overlaps the curved surface portion 2c2 of the first electronic component 2 and the rear end portion of the main body portion 91, and extends upward from the first external connection portion 45 of the first bus bar 4. A rising portion 92 that is interposed between the base end and the base end of the first external connection portion 52 of the second bus bar 5 to secure insulation between them, and a direction from the right end portion of the main body portion 91 to the second electronic component 3. It is provided with an extension portion 93 extending to.

本体部９１は、放熱部材７の本体部７１より一回り大きな幅及び長さを有している。従って、放熱部材７と第１バスバー４との絶縁は確保されている。 The main body 91 has a width and length slightly larger than that of the main body 71 of the heat radiating member 7. Therefore, the insulation between the heat radiating member 7 and the first bus bar 4 is ensured.

延出部９３は、図１及び３に示すように、本体部９１の右側の端部から下方に延びる第１垂下部９３ａと、第１垂下部９３ａの下端から左右方向にそれぞれ延びる張出部９３ｂと、張出部９３ｂの左側の端部から下方に延びる第２垂下部９３ｃと、張出部９３ｂの右側の端部から下方に延びる第３垂下部９３ｄと、張出部９３ｂと第２垂下部９３ｃと第３垂下部９３ｄとで囲まれた空間を前後方向で区切る仕切部９３ｅと、第３垂下部９３ｄの上端から上方に延びる隔壁部９３ｆとを備えている。 As shown in FIGS. 1 and 3, the extension portion 93 has a first hanging portion 93a extending downward from the right end portion of the main body portion 91 and an extending portion extending in the left-right direction from the lower end of the first hanging portion 93a. 93b, a second hanging 93c extending downward from the left end of the overhanging portion 93b, a third hanging 93d extending downward from the right end of the overhanging portion 93b, and an overhanging portion 93b and a second. It includes a partition portion 93e that divides the space surrounded by the hanging portion 93c and the third hanging portion 93d in the front-rear direction, and a partition wall portion 93f that extends upward from the upper end of the third hanging portion 93d.

２つの第２電子部品３は、間に仕切部９３ｅを介在させた状態で、張出部９３ｂと第２垂下部９３ｃと第３垂下部９３ｄとで囲まれた空間に位置している。また、第２バスバー５の第２外部接続部５３は、その基端側の一部が第１垂下部９３ａと隔壁部９３ｆとの間に位置している。第３バスバー６の本体部６１は、第３垂下部９３ｄの右側に位置している。そして、第１電子部品２と第２電子部品３との間に第２垂下部９３ｃが介在して双方の絶縁を確保している。また、第２電子部品３と第３バスバー６との間に第３垂下部９３ｄが介在して双方の絶縁を確保している（図４参照）。 The two second electronic components 3 are located in a space surrounded by an overhanging portion 93b, a second hanging portion 93c, and a third hanging portion 93d, with a partition portion 93e interposed therebetween. Further, a part of the second external connection portion 53 of the second bus bar 5 on the proximal end side is located between the first hanging portion 93a and the partition wall portion 93f. The main body 61 of the third bus bar 6 is located on the right side of the third hanging 93d. A second hanging 93c is interposed between the first electronic component 2 and the second electronic component 3 to ensure insulation between the two. Further, a third hanging portion 93d is interposed between the second electronic component 3 and the third bus bar 6 to ensure insulation between the two (see FIG. 4).

また、第２絶縁部材９は、図３に示すように、第２バスバー５と一体化するための第１固定手段を備えている。具体的には、立ち上がり部９２の後ろ側の面から突出する突起９２ａが設けられている。第２バスバー５は、その突起９２ａに対応する位置に孔５２ａを備えており、突起９２ａを孔５２ａに差し込むことで第２絶縁部材９と第２バスバー５とが一体とされている。なお、この状態は、樹脂封止電気部品１が、第２絶縁部材９を第２バスバー５に固定する第１固定手段を備えているともいえる。 Further, as shown in FIG. 3, the second insulating member 9 includes a first fixing means for integrating with the second bus bar 5. Specifically, a protrusion 92a projecting from the rear surface of the rising portion 92 is provided. The second bus bar 5 is provided with a hole 52a at a position corresponding to the protrusion 92a, and the second insulating member 9 and the second bus bar 5 are integrated by inserting the protrusion 92a into the hole 52a. In this state, it can be said that the resin-sealed electric component 1 includes the first fixing means for fixing the second insulating member 9 to the second bus bar 5.

さらに、第２絶縁部材９は、第１絶縁部材８や放熱部材７と一体化するための第２固定手段を備えている。具体的には、本体部９１の下面から突出する突起９１ａが設けられている。第１絶縁部材８と放熱部材７とは、その突起９１ａに対応する位置にそれぞれ孔７１ａ、８ａを備えており、突起９１ａをそれぞれの孔７１ａ、８ａに差し込むことで、第２絶縁部材９と第１絶縁部材８と放熱部材７とが一体とされている。なお、この状態は、樹脂封止電気部品１が、第１絶縁部材８と放熱部材７とを第２絶縁部材９に固定する第２固定手段を備えているともいえる。 Further, the second insulating member 9 includes a second fixing means for integrating with the first insulating member 8 and the heat radiating member 7. Specifically, a protrusion 91a projecting from the lower surface of the main body 91 is provided. The first insulating member 8 and the heat radiating member 7 are provided with holes 71a and 8a at positions corresponding to the protrusions 91a, respectively, and by inserting the protrusions 91a into the holes 71a and 8a, respectively, the first insulating member 8 and the heat radiating member 7 are combined with the second insulating member 9. The first insulating member 8 and the heat radiating member 7 are integrated. In this state, it can be said that the resin-sealed electric component 1 includes a second fixing means for fixing the first insulating member 8 and the heat radiating member 7 to the second insulating member 9.

上記構成の第２絶縁部材９は、例えば合成樹脂を成型することでなる。 The second insulating member 9 having the above configuration is formed by molding, for example, a synthetic resin.

ケース１０は、底部１０ａと、四方を囲む側壁部１０ｂと、後ろ側の側壁部１０ｂから左右方向にそれぞれ延出された取付脚１０ｃとを備えている。ケース１０の上端は開口しており、内部には、各部品を収容可能な空間が形成されている。 The case 10 includes a bottom portion 10a, a side wall portion 10b surrounding all four sides, and mounting legs 10c extending in the left-right direction from the rear side wall portion 10b. The upper end of the case 10 is open, and a space capable of accommodating each component is formed inside.

ケース１０内に充填される樹脂１１は例えばエポキシ樹脂である。ただこれに限らず、ウレタン樹脂等の公知の種々の樹脂を使用可能である。 The resin 11 filled in the case 10 is, for example, an epoxy resin. However, the present invention is not limited to this, and various known resins such as urethane resin can be used.

次に、樹脂封止電気部品１の製造方法について説明する。 Next, a method of manufacturing the resin-sealed electric component 1 will be described.

まず、第１電子部品２の後ろ側の電極部２ｂと、第２バスバー５の本体部５１とを重ね合わせるとともに、第１電子部品２の後ろ側の電極部２ｂと第２バスバー５の第１接続部５１ａとをはんだ付け等によって接続する。また、２つの第２電子部品３のうちの後ろ側の第２電子部品３の上側の電極部３ａと、第２バスバー５の第２接続部５１ｂとをリード線３１を介して接続する。さらに、第２バスバー５に固定された第２電子部品３の下側の電極部３ｂと、第３バスバー６の後ろ側の第１接続部６２とをリード線３１を介して接続する。 First, the electrode portion 2b on the rear side of the first electronic component 2 and the main body portion 51 of the second bus bar 5 are overlapped with each other, and the electrode portion 2b on the rear side of the first electronic component 2 and the first of the second bus bar 5 are overlapped. The connection portion 51a is connected by soldering or the like. Further, the upper electrode portion 3a of the second electronic component 3 on the rear side of the two second electronic components 3 and the second connecting portion 51b of the second bus bar 5 are connected via the lead wire 31. Further, the lower electrode portion 3b of the second electronic component 3 fixed to the second bus bar 5 and the first connecting portion 62 on the rear side of the third bus bar 6 are connected via the lead wire 31.

次に、第１絶縁部材８と放熱部材７と第２絶縁部材９とを第２固定手段によって一体化して簡易モジュール品とする。具体的には、第２絶縁部材９の本体部９１の下面の突起９１ａを第１絶縁部材８の孔８ａと放熱部材７の孔７１ａとにそれぞれ挿入する。 Next, the first insulating member 8, the heat radiating member 7, and the second insulating member 9 are integrated by the second fixing means to form a simple module product. Specifically, the protrusions 91a on the lower surface of the main body 91 of the second insulating member 9 are inserted into the holes 8a of the first insulating member 8 and the holes 71a of the heat radiating member 7, respectively.

次に、簡易モジュール品を第１固定手段によって第２バスバー５と一体化する。具体的には、第１電子部品２の曲面部２ｃ２と第１絶縁部材８とを重ね合わせるとともに、第２絶縁部材９の立ち上がり部９２の後ろ側の面の突起９２ａを第２バスバー５の孔５２ａに挿入する。 Next, the simple module product is integrated with the second bus bar 5 by the first fixing means. Specifically, the curved surface portion 2c2 of the first electronic component 2 and the first insulating member 8 are overlapped with each other, and the protrusion 92a on the rear surface of the rising portion 92 of the second insulating member 9 is formed into the hole of the second bus bar 5. Insert into 52a.

次に、第２絶縁部材９の本体部９１と、第１バスバー４の本体部４１とを重ね合わせるとともに、第１電子部品２の前側の電極部２ａと第１バスバー４の第１接続部４３とをはんだ付け等で接続する。また、２つの第２電子部品３のうちの前側の第２電子部品３の上側の電極部３ａと、第１バスバー４の第２接続部４４とをリード線３１を介して接続する。さらに、第１バスバー４に固定された第２電子部品３の下側の電極部３ｂと、第３バスバー６の前側の第１接続部６２とをリード線３１を介して接続する。なお、この状態で、第１電子部品２の側面２ｃと第１バスバー４の本体部４１との間に、側面２ｃから近い順に第１絶縁部材８、放熱部材７、第２絶縁部材９が位置することになる。また、第１電子部品２と第２電子部品３との間に第２絶縁部材９の第２垂下部９３ｃが介在することになる。さらに、第２電子部品３と第３バスバー６との間に第３垂下部９３ｄが介在することになる。 Next, the main body 91 of the second insulating member 9 and the main body 41 of the first bus bar 4 are overlapped with each other, and the electrode portion 2a on the front side of the first electronic component 2 and the first connection portion 43 of the first bus bar 4 are overlapped. And are connected by soldering or the like. Further, the upper electrode portion 3a of the second electronic component 3 on the front side of the two second electronic components 3 and the second connecting portion 44 of the first bus bar 4 are connected via the lead wire 31. Further, the lower electrode portion 3b of the second electronic component 3 fixed to the first bus bar 4 and the first connecting portion 62 on the front side of the third bus bar 6 are connected via the lead wire 31. In this state, the first insulating member 8, the heat radiating member 7, and the second insulating member 9 are located between the side surface 2c of the first electronic component 2 and the main body 41 of the first bus bar 4 in order from the side surface 2c. Will be done. Further, the second hanging portion 93c of the second insulating member 9 is interposed between the first electronic component 2 and the second electronic component 3. Further, the third hanging portion 93d is interposed between the second electronic component 3 and the third bus bar 6.

次に、これら一体となった各部品をケース１０に収容する。この際、第１バスバー４の第１外部接続部４５と、第２バスバー５の第１外部接続部５２と、放熱部材７の外部接続部７２と、第２絶縁部材９の立ち上がり部９２とをケース１０の開口部１０ｄからケース１０外に突出させる。また、第１バスバー４の第２外部接続部４６と、第２バスバー５の第２外部接続部５３と、第３バスバー６の第１外部接続部６３とをケース１０右側の側壁部１０ｂを跨ぐようにしてケース１０外に延出させる。 Next, each of these integrated parts is housed in the case 10. At this time, the first external connection portion 45 of the first bus bar 4, the first external connection portion 52 of the second bus bar 5, the external connection portion 72 of the heat radiating member 7, and the rising portion 92 of the second insulating member 9 are connected. It is projected from the opening 10d of the case 10 to the outside of the case 10. Further, the second external connection portion 46 of the first bus bar 4, the second external connection portion 53 of the second bus bar 5, and the first external connection portion 63 of the third bus bar 6 straddle the side wall portion 10b on the right side of the case 10. In this way, it is extended to the outside of the case 10.

そして、ケース１０内に樹脂１１を充填して第１電子部品２と第２電子部品３とを樹脂封止する。具体的には、第１電子部品２、第２電子部品３、第１絶縁部材８を樹脂面下に位置させ、第１バスバー４、第２バスバー５、第３バスバー６、放熱部材７、第２絶縁部材９については、各外部接続部や立ち上がり部９２を除いて樹脂面下に位置させる。そして樹脂１１が硬化することで樹脂封止電気部品１の製造を完了する。 Then, the case 10 is filled with the resin 11 and the first electronic component 2 and the second electronic component 3 are sealed with the resin. Specifically, the first electronic component 2, the second electronic component 3, and the first insulating member 8 are positioned below the resin surface, and the first bus bar 4, the second bus bar 5, the third bus bar 6, the heat radiating member 7, and the first 2 The insulating member 9 is positioned below the resin surface except for each external connection portion and the rising portion 92. Then, when the resin 11 is cured, the production of the resin-sealed electric component 1 is completed.

上記構成の樹脂封止電気部品１は、ひとつの第２絶縁部材９を組み込むだけで、第１電子部品２と第２電子部品３との間、第２電子部品３と第３バスバー６との間、放熱部材７と第１バスバー４との間、第２電子部品３間の絶縁を確保することができるため、部品点数と工数の大幅な削減が可能となり、コスト削減に大きく寄与する。また、第１固定手段と第２固定手段によって放熱部材７を固定・保持できるため、第１電子部品２の直近に精度良く放熱部材７を配置することができ、放熱効率の向上を図ることもできる。 The resin-sealed electric component 1 having the above configuration can be provided between the first electronic component 2 and the second electronic component 3 and between the second electronic component 3 and the third bus bar 6 by simply incorporating one second insulating member 9. Since the insulation between the heat radiating member 7 and the first bus bar 4 and the second electronic component 3 can be ensured, the number of components and man-hours can be significantly reduced, which greatly contributes to cost reduction. Further, since the heat radiating member 7 can be fixed and held by the first fixing means and the second fixing means, the heat radiating member 7 can be placed in the immediate vicinity of the first electronic component 2 with high accuracy, and the heat radiating efficiency can be improved. it can.

以上に、この発明の実施形態について説明したが、この発明は上記実施形態に限定されるものではなく、この発明の範囲内で種々変更して実施することが可能である。例えば、上記実施形態では、第２電子部品３を２個設けていたが、１個でも良い。この場合、第２絶縁部材９の仕切部９３ｅは不要である。 Although the embodiments of the present invention have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made within the scope of the present invention. For example, in the above embodiment, two second electronic components 3 are provided, but one may be provided. In this case, the partition portion 93e of the second insulating member 9 is unnecessary.

また、第１電子部品２や第２電子部品３は巻回型のフィルムコンデンサに限らず、積層型のフィルムコンデンサであってもよい。また、セラミックコンデンサ等、種々のコンデンサ素子であってもよい。さらにコンデンサ素子に限らず、半導体素子、抵抗器、インダクタ、圧電素子等、種々の電子部品を使用可能である。 Further, the first electronic component 2 and the second electronic component 3 are not limited to the winding type film capacitor, and may be a laminated type film capacitor. Further, various capacitor elements such as a ceramic capacitor may be used. Furthermore, not limited to capacitor elements, various electronic components such as semiconductor elements, resistors, inductors, and piezoelectric elements can be used.

また、第１固定手段や第２固定手段の数が２個とされていたが、１個でも３個以上であってもよい。２個以上であれば回転が拘束されるため、精度良く位置決めが可能となる。また、なお、第１固定手段や第２固定手段としては、突起と孔との嵌合に限らず、固定や位置決めができるものであれば種々の形状のものを採用できる。また、第１絶縁部材８や放熱部材７、第２バスバー５に突起を設けてもよい。 Further, although the number of the first fixing means and the second fixing means is two, it may be one or three or more. If there are two or more, rotation is restricted, so accurate positioning is possible. Further, the first fixing means and the second fixing means are not limited to the fitting of the protrusion and the hole, and various shapes can be adopted as long as they can be fixed and positioned. Further, the first insulating member 8, the heat radiating member 7, and the second bus bar 5 may be provided with protrusions.

１ 樹脂封止電気部品
２ 第１電子部品
２ａ 一方の電極部
２ｂ 他方の電極部
２ｃ 側面
２ｃ１ 平坦部
２ｃ２ 曲面部
３ 第２電子部品
３ａ 一方の電極部
３ｂ 他方の電極部
３ｃ 側面
３ｃ１ 平坦部
３ｃ２ 曲面部
３１ リード線
４ 第１バスバー
４１ 本体部（第１バスバー）
４２ 垂直部
４３ 第１接続部（第１バスバー）
４４ 第２接続部（第１バスバー）
４５ 第１外部接続部（第１バスバー）
４６ 第２外部接続部（第１バスバー）
５ 第２バスバー
５１ 本体部（第２バスバー）
５１ａ 第１接続部（第２バスバー）
５１ｂ 第２接続部（第２バスバー）
５２ 第１外部接続部（第２バスバー）
５２ａ 孔
５３ 第２外部接続部（第２バスバー）
６ 第３バスバー
６１ 本体部（第３バスバー）
６２ 第１接続部（第３バスバー）
６３ 第１外部接続部（第３バスバー）
７ 放熱部材
７１ 本体部（放熱部材）
７１ａ 孔
７２ 外部接続部
８ 第１絶縁部材
８ａ 孔
９ 第２絶縁部材
９１ 本体部（第２絶縁部材）
９１ａ 突起
９２ 立ち上がり部
９２ａ 突起
９３ 延出部
９３ａ 第１垂下部
９３ｂ 張出部
９３ｃ 第２垂下部
９３ｄ 第３垂下部
９３ｅ 仕切部
９３ｆ 隔壁部
１０ ケース
１０ａ 底部
１０ｂ 側壁部
１０ｃ 取付脚
１０ｄ 開口部
１１ 樹脂 1 Resin-sealed electric component 2 First electronic component 2a One electrode section 2b Another electrode section 2c Side surface 2c1 Flat section 2c2 Curved surface section 3 Second electronic component 3a One electrode section 3b The other electrode section 3c Side surface 3c1 Flat section 3c2 Curved surface 31 Lead wire 4 1st bus bar 41 Main body (1st bus bar)
42 Vertical part 43 1st connection part (1st bus bar)
44 2nd connection (1st busbar)
45 1st external connection (1st bus bar)
46 Second external connection (first bus bar)
5 2nd bus bar 51 Main body (2nd bus bar)
51a 1st connection (2nd bus bar)
51b 2nd connection (2nd bus bar)
52 First external connection (second bus bar)
52a Hole 53 Second external connection (second bus bar)
6 3rd bus bar 61 Main body (3rd bus bar)
62 1st connection (3rd bus bar)
63 1st external connection (3rd bus bar)
7 Heat dissipation member 71 Main body (heat dissipation member)
71a Hole 72 External connection part 8 First insulating member 8a Hole 9 Second insulating member 91 Main body (second insulating member)
91a Protrusion 92 Rising part 92a Protrusion 93 Extension 93a First hanging 93b Overhang 93c Second hanging 93d Third hanging 93e Partition 93f Partition 10 Case 10a Bottom 10b Side wall 10c Mounting leg 10d Opening 11 resin

Claims (4)

第１電子部品と、
第１電子部品に隣接する第２電子部品とを備え、
第１電子部品の一方の電極に第１バスバーが接続され、
第１電子部品の他方の電極に第２バスバーが接続されており、
第１バスバーが第１電子部品の電極から側面に延びており、
第１電子部品の側面と第１バスバーとの間には、側面から近い順に第１絶縁部材、放熱部材、第２絶縁部材が位置しており、
第２電子部品には第３バスバーが接続されており、
第２絶縁部材が、第１電子部品の側面から第２電子部品の方向へと延び、第１電子部品と第２電子部品との間及び第２電子部品と第３バスバーとの間にそれぞれ介在する延出部を有している、
樹脂封止電気部品。 With the first electronic component
It is equipped with a second electronic component adjacent to the first electronic component.
The first bus bar is connected to one electrode of the first electronic component,
The second bus bar is connected to the other electrode of the first electronic component,
The first bus bar extends from the electrode of the first electronic component to the side,
Between the side surface of the first electronic component and the first bus bar, the first insulating member, the heat radiating member, and the second insulating member are located in order from the side surface.
The third bus bar is connected to the second electronic component,
The second insulating member extends from the side surface of the first electronic component toward the second electronic component, and is interposed between the first electronic component and the second electronic component and between the second electronic component and the third bus bar, respectively. Has an extension to
Resin-sealed electrical components. 第２電子部品が複数であって、第２電子部品間に延出部が介在している、
請求項１記載の樹脂封止電気部品。 There are a plurality of second electronic components, and an extension portion is interposed between the second electronic components.
The resin-sealed electric component according to claim 1. 第１絶縁部材と放熱部材と第２絶縁部材とが一体とされている、
請求項１又は２記載の樹脂封止電気部品。 The first insulating member, the heat radiating member, and the second insulating member are integrated.
The resin-sealed electric component according to claim 1 or 2. 第２バスバーと第２絶縁部材とが一体とされている、
請求項１から３のいずれかに記載の樹脂封止電気部品。 The second bus bar and the second insulating member are integrated,
The resin-sealed electric component according to any one of claims 1 to 3.

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