JP5365919B2 - Capacitor - Google Patents
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- JP5365919B2 JP5365919B2 JP2009154601A JP2009154601A JP5365919B2 JP 5365919 B2 JP5365919 B2 JP 5365919B2 JP 2009154601 A JP2009154601 A JP 2009154601A JP 2009154601 A JP2009154601 A JP 2009154601A JP 5365919 B2 JP5365919 B2 JP 5365919B2
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- 239000003990 capacitor Substances 0.000 title claims description 129
- 239000011347 resin Substances 0.000 claims description 9
- 229920005989 resin Polymers 0.000 claims description 9
- 230000002093 peripheral effect Effects 0.000 claims description 8
- 230000000630 rising effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 20
- 239000010949 copper Substances 0.000 description 7
- 229910052802 copper Inorganic materials 0.000 description 7
- 239000011889 copper foil Substances 0.000 description 7
- 238000005476 soldering Methods 0.000 description 7
- 239000004020 conductor Substances 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000012212 insulator Substances 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229910000679 solder Inorganic materials 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Description
この発明は、コンデンサに関する。 This invention relates to a capacitor.
コンデンサを接続する場合、銅箔や軟銅線を用いて接続するのが一般的である。銅箔や軟銅線は、折曲や切断等の加工作業を行い易く、フレキシブルであるため、コンデンサの配列や形状に関らず、接続し易いという利点がある。 When connecting a capacitor, it is common to use a copper foil or an annealed copper wire. Copper foils and annealed copper wires have the advantage that they can be easily connected regardless of the arrangement and shape of the capacitors because they are easy to perform processing operations such as bending and cutting and are flexible.
しかしながら、銅箔や軟銅線は、断面積が小さいため、電気抵抗が大きくなり易く、耐電流性能に乏しいものであった。また、並列接続した複数のコンデンサを直列接続する場合、コンデンサ素子個々を銅箔や軟銅線で接続しようとすると接続作業が煩雑になる難点があった。 However, since copper foil and annealed copper wire have a small cross-sectional area, their electrical resistance tends to increase and current resistance performance is poor. In addition, when connecting a plurality of capacitors connected in parallel, connecting each capacitor element with a copper foil or an annealed copper wire has a problem in that the connection work becomes complicated.
そこで、この発明は、上記の不具合を解消して、耐電流性の向上を図るとともに、接続作業性が良好なコンデンサを提供するものである。 Accordingly, the present invention is to solve the above problems, with improved withstand current property, in which connection workability provides good capacitor.
上記課題を解決するため、本発明のコンデンサは、第１のコンデンサ３を構成する複数のコンデンサ素子１・・の一方の端面どうしを第１の電極板５により共通接続するとともに、第１のコンデンサ３を構成する複数のコンデンサ素子１・・の他方の端面どうしを第３の電極板１３で共通接続することで、複数のコンデンサ素子１・・を並列接続してなる第１のコンデンサ３を構成し、第２のコンデンサ４を構成する複数のコンデンサ素子１・・の一方の端面どうしを第２の電極板９に共通接続するとともに、第２のコンデンサ４を構成する複数のコンデンサ素子１・・の他方の端面どうしを第４の電極板１６で共通接続することで、複数のコンデンサ素子１・・を並列接続してなる第２のコンデンサ４を構成し、第１のコンデンサ３と第２のコンデンサ４とを、第１の電極板５と第２の電極板９とが互いに対向するように配置し、第１の電極板５の外周部で第２の電極板９と対向する側に設けられた複数の凸部８を、第２の電極板９の外周部に設けられた複数の凹部１２にそれぞれ嵌合し半田付けすることにより、第１のコンデンサ３と第２のコンデンサ４との間に隙間を有するようにして、第１のコンデンサ３と第２のコンデンサ４とを直列接続し、さらに、コンデンサ素子１・・と第１、第２、第３、第４の電極板５、９、１３、１６とを、第３の電極板１３に設けた第１の外部接続部１５と、第４の電極板１６に設けた第２の外部接続部１８とをケースの外方に引き出すようにしてケースに収納し樹脂を充填したコンデンサであって、コンデンサ素子１は、巻回形成による曲面を有し、軸方向端面と各電極板５、９、１３、１６とが互いに対向するようにして並設されており、複数の凸部８と複数の凹部１２のそれぞれは、互いに隣接するコンデンサ素子１、１の間から延出され接続されていることを特徴としている。 To solve the above problems, capacitor of the present invention, together with one end face each other of the plurality of capacitor elements 1 ... constituting the first capacitor 3 is connected in common by the first electrode plate 5, a first The other end faces of the plurality of capacitor elements 1... Constituting the capacitor 3 are commonly connected by the third electrode plate 13, whereby the first capacitor 3 formed by connecting the plurality of capacitor elements 1. configured, with commonly connecting one end surface each other of the plurality of capacitor elements 1 ... constituting the second capacitor 4 to the second electrode plate 9, a plurality of capacitor elements that constitute the second capacitor 4 1 - The other end faces of the second capacitor 4 are commonly connected by the fourth electrode plate 16 to form a second capacitor 4 in which a plurality of capacitor elements 1... Are connected in parallel. The capacitor 4 is disposed so that the first electrode plate 5 and the second electrode plate 9 face each other, and is provided on the outer peripheral portion of the first electrode plate 5 on the side facing the second electrode plate 9. By fitting and soldering the plurality of convex portions 8 to the plurality of concave portions 12 provided on the outer peripheral portion of the second electrode plate 9, the first capacitor 3 and the second capacitor 4 The first capacitor 3 and the second capacitor 4 are connected in series so that there is a gap between them, and the capacitor element 1... And the first, second, third, and fourth electrode plates 5, 9, 13 and 16 are drawn out of the case from the first external connection 15 provided on the third electrode plate 13 and the second external connection 18 provided on the fourth electrode plate 16. In this way, the capacitor is stored in a case and filled with resin, and the capacitor element 1 is formed by winding. Each of the plurality of convex portions 8 and the plurality of concave portions 12 are adjacent to each other. The axial end surfaces and the electrode plates 5, 9, 13, and 16 are arranged side by side. It is characterized in that it is extended and connected between the capacitor elements 1 and 1 .
また、凸部８と凹部１２とを嵌合した状態において、第２の電極板９の、第１の電極板５側への移動を規制する立上り部７が設けられている。 In addition, a rising portion 7 that restricts the movement of the second electrode plate 9 toward the first electrode plate 5 in a state where the convex portion 8 and the concave portion 12 are fitted is provided.
この発明のコンデンサにおいては、第１及び第２の電極板によって複数のコンデンサ素子を共通接続しているから、銅箔や軟銅線によってコンデンサ素子を共通接続する場合に比べて、導体の断面積が増し、耐電流性能を向上させることができる。また、第１及び第２の電極板に形成された第１及び第２の接続部をそれぞれ接続することによって、第１のコンデンサと第２のコンデンサとを直列接続していることから、接続作業が容易となるとともに、コンデンサの電圧性能を向上させることができる。 Oite the capacitor of the present invention, because they commonly connecting a plurality of capacitor elements by first and second electrode plates, as compared with the case of commonly connecting the capacitor element by copper foil or copper wire, conductor The cross-sectional area increases, and the current resistance performance can be improved. Also, since the first capacitor and the second capacitor are connected in series by connecting the first and second connection portions formed on the first and second electrode plates, respectively, the connection work And the voltage performance of the capacitor can be improved.
また、第１の接続部が、第１の電極板の外周部に形成された凸部であり、第２の接続部が、第２の電極板の外周部に形成された凹部であり、この凸部と凹部とを嵌合させ半田付けすることで、第１のコンデンサと第２のコンデンサとを直列接続できるから、接続作業の効率を向上させることができる。 The first connecting portion is a convex portion formed on the outer peripheral portion of the first electrode plate, and the second connecting portion is a concave portion formed on the outer peripheral portion of the second electrode plate. Since the first capacitor and the second capacitor can be connected in series by fitting and soldering the convex portion and the concave portion, the efficiency of the connection work can be improved.
さらに、凸部と凹部とを接続した状態において、第１のコンデンサと第２のコンデンサとの間に隙間を有するように構成、すなわち、第１の電極板と第２の電極板との間に隙間を有するように構成したことで、第１及び第２のコンデンサや各電極板から発せられる熱を効率良く外方へ放散させることができる。 Further, in a state where the convex portion and the concave portion are connected, a configuration is provided so as to have a gap between the first capacitor and the second capacitor, that is, between the first electrode plate and the second electrode plate. By configuring so as to have a gap, heat generated from the first and second capacitors and each electrode plate can be efficiently dissipated outward.
また、各電極板によって複数のコンデンサ素子を接続していることから、銅箔や軟銅線によって、コンデンサ素子を接続する場合に比べて、導体の断面積が増し、耐電流性能を向上させることができる。また、第３及び第４の電極板に設けられた第１及び第２の外部接続部によって、外部（回路等）とコンデンサとを安定した状態で接続できるとともに、接続作業の効率を向上させることができる。 In addition, since a plurality of capacitor elements are connected by each electrode plate, the cross-sectional area of the conductor is increased and the current resistance performance is improved compared to the case where the capacitor elements are connected by copper foil or annealed copper wire. it can. Further, the first and second external connection portions provided on the third and fourth electrode plates can stably connect the outside (circuit, etc.) and the capacitor and improve the efficiency of the connection work. Can do.
以下、この発明の第１の実施形態を図面に基づいて詳細に説明する。この発明の第１の実施形態に係るコンデンサは、図１に示すように、複数のコンデンサ素子１・・から構成される第１のコンデンサ３を、第１の電極板５及び第３の電極板１３で並列接続するとともに、複数のコンデンサ素子１・・から構成される第２のコンデンサ４を、第２の電極板９及び第４の電極板１６で並列接続し、第１の電極板５に形成された第１の接続部８と、第２の電極板９に形成された第２の接続部１２とを互いに接続することにより直列接続し、図示しないケース内に収納し、且つ樹脂モールドされてなるコンデンサである。 Hereinafter, a first embodiment of the present invention will be described in detail with reference to the drawings. As shown in FIG. 1, the capacitor according to the first embodiment of the present invention includes a first capacitor 3 composed of a plurality of capacitor elements 1..., A first electrode plate 5 and a third electrode plate. 13 and a second capacitor 4 composed of a plurality of capacitor elements 1... Are connected in parallel by a second electrode plate 9 and a fourth electrode plate 16, and are connected to the first electrode plate 5. The first connection portion 8 formed and the second connection portion 12 formed on the second electrode plate 9 are connected in series to each other, housed in a case (not shown), and resin-molded. This is a capacitor.
コンデンサ素子１は、例えば蒸着電極フィルムを巻回してなるものであって、その軸方向両端部には、半田等を吹き付けてなるメタリコン電極部２、２が形成されている。 The capacitor element 1 is formed by, for example, winding a vapor-deposited electrode film. Metallicon electrode portions 2 and 2 formed by spraying solder or the like are formed at both ends in the axial direction.
第１のコンデンサ３は、複数のコンデンサ素子１・・から構成され、軸方向両端部に形成されたメタリコン電極部２・・が、それぞれ同一平面上に位置するように、例えば縦方向に５列、横方向に２列配設されてなる。 The first capacitor 3 is composed of a plurality of capacitor elements 1... And the metallicon electrode portions 2... Formed at both ends in the axial direction are positioned on the same plane, for example, in 5 rows in the vertical direction. Two rows are arranged in the horizontal direction.
第２のコンデンサ４は、第１のコンデンサ３と同様に、複数のコンデンサ素子１・・から構成され、軸方向両端部に形成されたメタリコン電極部２・・が、それぞれ同一平面上に位置するように、例えば縦方向に５列、横方向に２列配設されてなる。なお、第１及び第２のコンデンサ３、４のコンデンサ素子１の数及び配列は、必要となるコンデンサ容量やコンデンサを収納するケースの形状に応じて適宜変更可能である。 Similarly to the first capacitor 3, the second capacitor 4 is composed of a plurality of capacitor elements 1..., And the metallicon electrode portions 2... Formed at both axial ends are located on the same plane. Thus, for example, five rows in the vertical direction and two rows in the horizontal direction are arranged. Note that the number and arrangement of the capacitor elements 1 of the first and second capacitors 3 and 4 can be changed as appropriate according to the required capacitor capacity and the shape of the case housing the capacitors.
第１の電極板５は、図２に示すように、例えば厚さ１ｍｍ程度の平面視略長方形のタフピッチ銅からなり、外周部から、コンデンサ素子１と接続される第１のコンデンサ接続部６と、第２の電極板９の第２の接続部１２と接続される第１の接続部（凸部）８とがそれぞれ延出されている。詳しくは、第１のコンデンサ接続部６は、第１の電極板５の長辺両側から、第１のコンデンサ３のメタリコン電極部２の数に合わせて片側５箇所ずつ延出されており、第１の接続部８は、第１のコンデンサ接続部６、６間に形成された断面略Ｌ字状の立上り部７の先端略中央部から延出され、その幅は、立上り部７の幅より狭幅に形成されている。 As shown in FIG. 2, the first electrode plate 5 is made of, for example, a tough pitch copper having a substantially rectangular shape in a plan view with a thickness of about 1 mm, and a first capacitor connecting portion 6 connected to the capacitor element 1 from the outer periphery. The 1st connection part (convex part) 8 connected with the 2nd connection part 12 of the 2nd electrode plate 9 is each extended. Specifically, the first capacitor connecting portion 6 is extended from both sides of the long side of the first electrode plate 5 at five locations on one side in accordance with the number of metallicon electrode portions 2 of the first capacitor 3. One connecting portion 8 extends from a substantially central portion of the leading end of a rising portion 7 having a substantially L-shaped cross section formed between the first capacitor connecting portions 6 and 6, and its width is larger than the width of the rising portion 7. It is formed with a narrow width.
第２の電極板９は、図３に示すように、例えば厚さ１ｍｍ程度の平面視略長方形のタフピッチ銅からなり、外周部から、コンデンサ素子１と接続される第２のコンデンサ接続部１０と、第１の電極板５の第１の接続部８と接続される第２の接続部（凹部）１２とが形成されている。詳しくは、第２のコンデンサ接続部１０は、第２の電極板９の長辺両側から、第２のコンデンサ４のメタリコン電極部２の数に合わせて片側５箇所ずつ延出されており、第２の接続部１２は、第２のコンデンサ接続部１０、１０間から延出された受け部１１の先端略中央部を切り欠くことで形成されている。受け部１１及び第２の接続部１２は、第１の電極板５の第１の接続部８と対向する位置に設けられているとともに、第２の接続部１２の溝幅は、第１の電極板５の第１の接続部８の幅と略同幅に形成されている。 As shown in FIG. 3, the second electrode plate 9 is made of, for example, a tough pitch copper having a substantially rectangular shape in a plan view with a thickness of about 1 mm, and a second capacitor connecting portion 10 connected to the capacitor element 1 from the outer periphery. A second connection portion (concave portion) 12 connected to the first connection portion 8 of the first electrode plate 5 is formed. Specifically, the second capacitor connecting portion 10 is extended from each of the long sides of the second electrode plate 9 at five locations on one side according to the number of metallicon electrode portions 2 of the second capacitor 4. The second connecting portion 12 is formed by cutting out the substantially central portion of the tip of the receiving portion 11 extending from between the second capacitor connecting portions 10 and 10. The receiving portion 11 and the second connecting portion 12 are provided at positions facing the first connecting portion 8 of the first electrode plate 5, and the groove width of the second connecting portion 12 is the first width. The electrode plate 5 is formed to have substantially the same width as the first connection portion 8 of the electrode plate 5.
第３の電極板１３は、図１及び図２に示すように、第１のコンデンサ３において、第１の電極板５が接続される反対側のメタリコン電極部２に接続されるものであって、例えば厚さ１ｍｍ程度の平面視略長方形のタフピッチ銅からなり、長辺両側から、コンデンサ素子１と接続される第３のコンデンサ接続部１４が、第１のコンデンサ３のメタリコン電極部２の数に合わせて片側５箇所ずつ延出されている。また、長手方向の一方端部からは、外部（回路等）と接続させるための第１の外部接続部１５が延出されている。第１の外部接続部１５は、図１及び図２に示すように、第１の電極板５の方向に凡そ９０度折曲され、さらにその先端部は、第１の電極板５と略平行となるよう凡そ９０度折曲されている。 As shown in FIGS. 1 and 2, the third electrode plate 13 is connected to the metallicon electrode portion 2 on the opposite side of the first capacitor 3 to which the first electrode plate 5 is connected. For example, the first capacitor 3 is made of tough pitch copper having a substantially rectangular shape in a plan view having a thickness of about 1 mm. 5 points on each side. In addition, a first external connection portion 15 for connecting to the outside (circuit or the like) extends from one end portion in the longitudinal direction. As shown in FIGS. 1 and 2, the first external connection portion 15 is bent approximately 90 degrees in the direction of the first electrode plate 5, and the tip portion thereof is substantially parallel to the first electrode plate 5. It is bent about 90 degrees.
第４の電極板１６は、図１及び図３に示すように、第２のコンデンサ４において、第２の電極板９が接続される反対側のメタリコン電極部２に接続されるものであって、例えば厚さ１ｍｍ程度の平面視略長方形のタフピッチ銅からなり、長辺両側から、コンデンサ素子１と接続される第４のコンデンサ接続部１７が、第２のコンデンサ４のメタリコン電極部２の数に合わせて片側５箇所ずつ延出されている。また、長手方向の一方端部からは、外部と接続させるための第２の外部接続部１８が延出されている。第２の外部接続部１８は、図１及び図３に示すように、第２の電極板９とは反対の方向に凡そ９０度折曲され、さらにその先端部は、第２の電極板９と略平行となるよう凡そ９０度折曲されている。 As shown in FIGS. 1 and 3, the fourth electrode plate 16 is connected to the metallicon electrode portion 2 on the opposite side of the second capacitor 4 to which the second electrode plate 9 is connected. The fourth capacitor connecting portion 17 connected to the capacitor element 1 from both long sides is formed of, for example, a substantially rectangular tough pitch copper having a thickness of about 1 mm in plan view. 5 points on each side. In addition, a second external connection portion 18 for connecting to the outside extends from one end portion in the longitudinal direction. As shown in FIGS. 1 and 3, the second external connection portion 18 is bent by about 90 degrees in the direction opposite to the second electrode plate 9, and the distal end portion thereof is the second electrode plate 9. It is bent about 90 degrees so that it is almost parallel to.
次に、コンデンサの組み立てについて詳細に説明する。まず、第１のコンデンサ３の一方のメタリコン電極部２・・に、第１の電極板５の第１のコンデンサ接続部６・・を当接させ、半田付け等で共通接続する。次に、第１のコンデンサ３の他方のメタリコン電極部２・・に、第３の電極板１３の第３のコンデンサ接続部１４・・を当接させ、半田付け等で共通接続する。この状態において、図２に示すように、複数のコンデンサ素子１・・から構成される第１のコンデンサ３は、第１及び第３の電極板５、１３によって並列接続された状態となる。 Next, the assembly of the capacitor will be described in detail. First, the first capacitor connecting portion 6... Of the first electrode plate 5 is brought into contact with one metallicon electrode portion 2... Of the first capacitor 3 and commonly connected by soldering or the like. Next, the third capacitor connecting portions 14 of the third electrode plate 13 are brought into contact with the other metallicon electrode portions 2 of the first capacitor 3 and commonly connected by soldering or the like. In this state, as shown in FIG. 2, the first capacitor 3 composed of the plurality of capacitor elements 1... Is connected in parallel by the first and third electrode plates 5 and 13.
また、これと同様に、第２のコンデンサ４の一方のメタリコン電極部２・・に、第２の電極板９の第２のコンデンサ接続部１０・・を当接させ、半田付け等で共通接続する。次に、第２のコンデンサ４の他方のメタリコン電極部２・・に、第４の電極板１６の第４のコンデンサ接続部１７・・を当接させ、半田付け等で共通接続する。この状態において、図３に示すように、複数のコンデンサ素子１・・から構成される第２のコンデンサ４は、第２及び第４の電極板９、１６によって並列接続された状態となる。 Similarly, the second capacitor connection portion 10... Of the second electrode plate 9 is brought into contact with one metallicon electrode portion 2... Of the second capacitor 4 and is commonly connected by soldering or the like. To do. Next, the fourth capacitor connecting portions 17 of the fourth electrode plate 16 are brought into contact with the other metallicon electrode portions 2 of the second capacitor 4 and commonly connected by soldering or the like. In this state, as shown in FIG. 3, the second capacitor 4 composed of the plurality of capacitor elements 1... Is connected in parallel by the second and fourth electrode plates 9 and 16.
次に、第１の電極板５と第２の電極板９とを対向させるとともに、図４に示すように、第１の電極板５の第１の接続部（凸部）８と、第２の電極板９の第２の接続部（凹部）１２とを、それぞれ嵌合させて半田付け等で直列接続する。この際、第１の電極板５の第１の接続部８は、その幅が第２の電極板９の凹部１２と略同幅に形成され、立上り部７は、それよりも広幅に形成されているから、第１の電極板５の凸部８を、第２の電極板９の凹部１２に嵌合させると、第２の電極板９の凹部１２が、立上り部７に引っ掛かった状態となり、図１にしめす下方向への第２の電極板９の移動が規制され、第１の電極板５と第２の電極板９とは、その間に隙間を有した状態で接続される。 Next, the first electrode plate 5 and the second electrode plate 9 are made to face each other, and as shown in FIG. 4, the first connection portion (convex portion) 8 of the first electrode plate 5 and the second electrode plate 5 The second connecting portions (concave portions) 12 of the electrode plates 9 are respectively fitted and connected in series by soldering or the like. At this time, the width of the first connection portion 8 of the first electrode plate 5 is formed to be substantially the same as the width of the recess 12 of the second electrode plate 9, and the rising portion 7 is formed to be wider than that. Therefore, when the convex portion 8 of the first electrode plate 5 is fitted into the concave portion 12 of the second electrode plate 9, the concave portion 12 of the second electrode plate 9 is caught by the rising portion 7. The movement of the second electrode plate 9 in the downward direction shown in FIG. 1 is restricted, and the first electrode plate 5 and the second electrode plate 9 are connected with a gap between them.
上記工程において、一体となったコンデンサ素子１・・及び各電極板５、９、１３、１６を、第３の電極板１３の第１の外部接続部１５と、第４の電極板１６の第２の外部接続部１８とをケース外方へ引き出した状態で、ケースの開口部からケース内へ収納する。この際、第１及び第２の外部接続部１５、１８の充填樹脂表面と接触する箇所に対して、充填樹脂のひび割れを防止する樹脂絶縁板１９をそれぞれ螺子等で取り付けておく。そして、ケース開口部から充填樹脂を充填し、樹脂モールドしてコンデンサの組み立てを完了する。なお、第３及び第４の電極板１３、１６の第１及び第２の外部接続部１５、１８に取り付けられた樹脂絶縁板１９は、充填樹脂のひび割れを防止するものであるから、必ずしも取り付ける必要はない。 In the above process, the integrated capacitor element 1 and the electrode plates 5, 9, 13, 16 are connected to the first external connection portion 15 of the third electrode plate 13 and the fourth electrode plate 16. In the state where the two external connection portions 18 are pulled out of the case, they are housed in the case from the opening of the case. At this time, the resin insulating plates 19 for preventing the filling resin from cracking are respectively attached to the portions of the first and second external connection portions 15 and 18 that are in contact with the filling resin surface with screws or the like. Then, filling resin is filled from the case opening, and resin molding is performed to complete the assembly of the capacitor. In addition, since the resin insulation board 19 attached to the 1st and 2nd external connection parts 15 and 18 of the 3rd and 4th electrode plates 13 and 16 prevents a crack of filling resin, it is not necessarily attached. There is no need.
上記第１の実施形態のコンデンサにおいては、コンデンサ素子１を接続するにあたって、銅箔や軟銅線ではなく、タフピッチ銅等の電極板５、９、１３、１６を用いていることから、断面積が大きくなり、耐電流性能を向上させることができる。また、第１の電極板５に形成された第１の接続部（凸部）８と、第２の電極板９に形成された第２の接続部（凹部）１２とを嵌合させることで、第１の電極板５と第２の電極板９を直列接続できることから、接続作業が容易であるとともに、第１の電極板５の立上り部７によって、第２の電極板９を、第１の電極板５との間に隙間を有した状態で接続させることができるから、コンデンサ素子１・・や各電極板５、９、１３、１６からの発熱を良好に外部に放散させることができる。 Oite the capacitor of the first embodiment, in order to connect the capacitor element 1, rather than the copper foil or copper wire, from the fact that using the electrode plate 5,9,13,16 such tough pitch copper, The cross-sectional area is increased, and the current resistance performance can be improved. Further, by fitting the first connection part (convex part) 8 formed on the first electrode plate 5 and the second connection part (concave part) 12 formed on the second electrode plate 9, Since the first electrode plate 5 and the second electrode plate 9 can be connected in series, the connection work is easy, and the second electrode plate 9 is connected to the first electrode plate 5 by the rising portion 7 of the first electrode plate 5. The electrode plate 5 can be connected with a gap between them, so that heat generated from the capacitor element 1... And each electrode plate 5, 9, 13, 16 can be dissipated well to the outside. .
次に、別の実施形態のコンデンサについて詳細に説明する。第２の実施形態に係るコンデンサは、図５（ａ）に示すように、第１の電極板５の外周部から直接、第１の電極板５表面と略直行する方向に、略円柱形状の第１の接続部（凸部）８が延出されているとともに、第２の電極板９の外周部に直接、第１の電極板５から延出された第１の接続部８と対向する位置において、第２の接続部（凹部）１２が形成され、これら第１の接続部８を、第２の接続部１２に挿入するようにして嵌合させることで、第１の電極板５と第２の電極板９とを直列接続するコンデンサである。第１の接続部８の延出長さは、第２の接続部１２の凹深さより長くされており、第１の接続部８と、第２の接続部１２とを嵌合させると、第１の電極板５と第２の電極板９との間に隙間が形成される。なお、第１の接続部８及び第２の接続部１２を除くその他の形態は、第１の実施形態と同様であり、その説明を省略している。 It will now be described in detail with the capacitor of another embodiment. Capacitor according to the second embodiment, as shown in FIG. 5 (a), directly from the outer periphery of the first electrode plate 5, in a direction perpendicular to substantially the first electrode plate 5 surface, substantially cylindrical The first connection part (convex part) 8 of the second electrode plate 9 is extended, and directly opposed to the first connection part 8 extended from the first electrode plate 5 on the outer peripheral portion of the second electrode plate 9. The second connecting portion (recessed portion) 12 is formed at the position where the first electrode plate 5 is fitted, and the first connecting portion 8 is fitted into the second connecting portion 12 so as to be inserted. When a second electrode plate 9 is a capacitor connected in series. The extension length of the first connection portion 8 is longer than the concave depth of the second connection portion 12, and when the first connection portion 8 and the second connection portion 12 are fitted, A gap is formed between the first electrode plate 5 and the second electrode plate 9. The other forms except for the first connection part 8 and the second connection part 12 are the same as those in the first embodiment, and the description thereof is omitted.
上記構成のコンデンサによれば、第１の電極板５の立上り部７や、第２の電極板９の受け部１１が必要なくなり、各電極板５、９の製作が容易となる。なお、第２の接続部１２は、第２の電極板９を挿通する貫通孔として形成されていてもよく、その場合は、第１の電極板５と第２の電極板９との間に、絶縁体を介在させることで、両電極板５、９間に隙間を形成するようにしてもよい。 According to capacitor having the above structure, and the rise portion 7 of the first electrode plate 5, it eliminates the need for the receiving portion 11 of the second electrode plate 9, thereby facilitating the manufacture of the electrode plates 5,9. The second connecting portion 12 may be formed as a through-hole through which the second electrode plate 9 is inserted. In that case, the second connecting portion 12 is interposed between the first electrode plate 5 and the second electrode plate 9. A gap may be formed between the electrode plates 5 and 9 by interposing an insulator.
次に、さらに別の実施形態のコンデンサについて詳細に説明する。第３の実施形態に係るコンデンサは、図５（ｂ）に示すように、第１の電極板５の外周部から直接、第１の電極板５表面と略直行する方向に、略円柱形状の第１の接続部（凸部）８が延出されているとともに、第２の電極板９の外周部から直接、第１の電極板５から延出された第１の接続部８と対向する位置において、第２の電極板９表面と略直行する方向に筒状体が延出され、その中空部を第２の接続部（凹部）１２として、第１の接続部８を、第２の接続部１２に挿入するようにして嵌合させることにより、第１の電極板５と第２の電極板９とを直列接続するコンデンサである。なお、第１の接続部８及び第２の接続部１２を除くその他の形態は、第１の実施形態と同様であり、その説明を省略している。 Next, further with the capacitor of another embodiment will be described in detail. Capacitor according to the third embodiment, as shown in FIG. 5 (b), directly from the outer periphery of the first electrode plate 5, in a direction perpendicular to substantially the first electrode plate 5 surface, substantially cylindrical The first connection portion (convex portion) 8 of the second electrode plate 9 extends and directly faces the first connection portion 8 extended from the first electrode plate 5 directly from the outer peripheral portion of the second electrode plate 9. The cylindrical body is extended in a direction substantially perpendicular to the surface of the second electrode plate 9 at the position where the first connecting portion 8 is the second connecting portion (recessed portion) 12 as the hollow portion. This is a capacitor for connecting the first electrode plate 5 and the second electrode plate 9 in series by being inserted into the connecting portion 12 and fitted. The other forms except for the first connection part 8 and the second connection part 12 are the same as those in the first embodiment, and the description thereof is omitted.
上記構成のコンデンサによれば、第１の接続部８と第２の接続部１２との接続が強固なものとなり、安定した接続が可能となる。また、第２の接続部１２が、第２の電極板９を貫通するように形成されていても、第２の電極板９から延出された筒状体の先端部が、第１の電極板５表面に当接することで、絶縁体等を介在させることなく、第１の電極板５と第２の電極板９との間に隙間を形成させることができる。 According to capacitor having the above structure, the first connection portion 8 is connected to the second connecting portion 12 become made firm, it is possible to stable connection. Further, even if the second connection portion 12 is formed so as to penetrate the second electrode plate 9, the distal end portion of the cylindrical body extending from the second electrode plate 9 is the first electrode. By contacting the surface of the plate 5, a gap can be formed between the first electrode plate 5 and the second electrode plate 9 without interposing an insulator or the like.
以上にこの発明の具体的な実施の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、各電極板５、９、１３、１６としては、タフピッチ銅の他にも、アルミ板等種々の材質のものが使用でき、厚さも１ｍｍとする必要はなく、使用電流に対して十分な断面積となる厚みであればよい。また、第１の電極板５の第１の接続部８の形状としては、幅の均一な形状とする他にも、凸部８の先端部近傍の幅を僅かに広幅とし、第２の電極板９の凹部１２と第１の電極板５の凸部８とを嵌合させた場合に、広幅部分が凹部１２に引っ掛かり、抜け止め（上方向の移動の規制）として機能するようにしてもよい。 Although specific 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, as each electrode plate 5, 9, 13, 16 other than tough pitch copper, various materials such as an aluminum plate can be used, and the thickness does not need to be 1 mm, which is sufficient for the current used. The thickness may be any cross-sectional area. Further, as the shape of the first connection portion 8 of the first electrode plate 5, in addition to the shape having a uniform width, the width in the vicinity of the tip portion of the convex portion 8 is slightly widened, and the second electrode When the concave portion 12 of the plate 9 and the convex portion 8 of the first electrode plate 5 are fitted, the wide width portion is caught by the concave portion 12 and functions as a retaining (regulation of upward movement). Good.
１・・コンデンサ素子、３・・第１のコンデンサ、４・・第２のコンデンサ、５・・第１の電極板、８・・第１の接続部、９・・第２の電極板、１２・・第２の接続部、１３・・第３の電極板、１５・・第１の外部接続部、１６・・第４の電極板、１８・・第２の外部接続部 DESCRIPTION OF SYMBOLS 1 ... Capacitor element, 3 ... First capacitor, 4 ... Second capacitor, 5 ... First electrode plate, 8 ... First connection part, 9 ... Second electrode plate, 12 .. Second connection part, 13. Third electrode plate, 15. First external connection part, 16. Fourth electrode plate, 18. Second external connection part
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