JP4613733B2 - Capacitor - Google Patents

Capacitor Download PDF

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Publication number
JP4613733B2
JP4613733B2 JP2005215350A JP2005215350A JP4613733B2 JP 4613733 B2 JP4613733 B2 JP 4613733B2 JP 2005215350 A JP2005215350 A JP 2005215350A JP 2005215350 A JP2005215350 A JP 2005215350A JP 4613733 B2 JP4613733 B2 JP 4613733B2
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Prior art keywords
capacitor
valve body
terminal plate
capacitor element
engaging portion
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JP2007035818A (en
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照久 三浦
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Panasonic Corp
Panasonic Holdings Corp
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Panasonic Corp
Matsushita Electric Industrial Co Ltd
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Priority to JP2005215350A priority Critical patent/JP4613733B2/en
Priority to US11/917,833 priority patent/US7706127B2/en
Priority to PCT/JP2006/314754 priority patent/WO2007013500A1/en
Priority to EP06781666.0A priority patent/EP1909299A4/en
Priority to CN200680025979.1A priority patent/CN101223615B/en
Priority to KR1020087001804A priority patent/KR100946010B1/en
Publication of JP2007035818A publication Critical patent/JP2007035818A/en
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Publication of JP4613733B2 publication Critical patent/JP4613733B2/en
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  • Electric Double-Layer Capacitors Or The Like (AREA)

Description

本発明は各種電子機器やハイブリッド自動車の回生用、あるいは電力貯蔵用等に使用されるコンデンサに関するものである。   The present invention relates to a capacitor used for regeneration of various electronic devices and hybrid vehicles, or for power storage.

図５はこの種の従来のコンデンサの構成を示した断面図、図６は同コンデンサに設けられた圧力調整弁の構成を示した断面図であり、図５と図６において、２０はコンデンサ素子、２０ａはこのコンデンサ素子２０に形成された中空部を示し、このコンデンサ素子２０はアルミニウム箔からなる集電体上に分極性電極層を形成した正負一対の電極を互いに逆方向に位置をずらしてその間にセパレータを介在させて巻回する（全て図示せず）ことにより構成され、このコンデンサ素子２０の両端面（図５において上下方向）から陽極と陰極を夫々取り出すように構成されたものである。   FIG. 5 is a cross-sectional view showing the configuration of this type of conventional capacitor, FIG. 6 is a cross-sectional view showing the configuration of a pressure regulating valve provided in the capacitor, and in FIGS. 5 and 6, 20 is a capacitor element. , 20a indicates a hollow portion formed in the capacitor element 20, and the capacitor element 20 has a pair of positive and negative electrodes in which a polarizable electrode layer is formed on a current collector made of an aluminum foil and is shifted in the opposite direction to each other. The separator is interposed between them and wound (all not shown), and the anode and the cathode are respectively taken out from both end faces (vertical direction in FIG. 5) of the capacitor element 20. .

２１は上記コンデンサ素子２０を図示しない駆動用電解液と共に収容したアルミニウム製の有底筒状の金属ケース、２１ａはこの金属ケース２１の外底面に一体で設けられた外部接続用の陰極端子、２１ｂはコンデンサ素子２０の中空部２０ａ内に嵌まり込むように内底面に一体で設けられた突起であり、この突起２１ｂをコンデンサ素子２０の中空部２０ａ内に嵌め込んで金属ケース２１内に挿入されたコンデンサ素子２０の陰極側の端面を金属ケース２１の内底面にレーザー溶接等によって機械的かつ電気的に接合するようにしたものである。   21 is a bottomed cylindrical metal case made of aluminum containing the capacitor element 20 together with a driving electrolyte (not shown), 21a is an external connection cathode terminal integrally provided on the outer bottom surface of the metal case 21, and 21b. Is a protrusion integrally provided on the inner bottom surface so as to be fitted into the hollow portion 20a of the capacitor element 20, and this protrusion 21b is fitted into the hollow portion 20a of the capacitor element 20 and inserted into the metal case 21. The end face on the cathode side of the capacitor element 20 is mechanically and electrically joined to the inner bottom face of the metal case 21 by laser welding or the like.

２２はアルミニウム製の封口板、２２ａはこの封口板２２の表面側に一体で設けられた外部接続用の陽極端子、２２ｂはコンデンサ素子２０の中空部２０ａ内に嵌まり込む突起、２２ｃは電解液注入孔、２３は圧力調整弁であり、コンデンサ素子２０の陽極側の端面を封口板２２の内面にレーザー溶接等の手段によって接合することにより、機械的、電気的に接続すると共に、この封口板２２の周縁上で上記金属ケース２１の開口部を巻き込むように加工（一般に、カーリング加工と呼ばれる）することによって封止して構成されたものである。   22 is a sealing plate made of aluminum, 22a is an anode terminal for external connection integrally provided on the surface side of the sealing plate 22, 22b is a protrusion that fits into the hollow portion 20a of the capacitor element 20, and 22c is an electrolytic solution. The injection hole 23 is a pressure adjusting valve. The anode end face of the capacitor element 20 is joined to the inner surface of the sealing plate 22 by means of laser welding or the like, so that it is mechanically and electrically connected. It is configured to be sealed by processing (generally referred to as curling processing) so as to enclose the opening of the metal case 21 on the periphery of 22.

また、上記圧力調整弁２３は図６に詳細を示すように、上記電解液注入孔２２ｃ上にガス透過性部材２４と閉塞体２５を配設し、これらを外部と連通する孔２６ａを有する金属キャップ２６で覆うように固定し、閉塞体２５を常時閉塞する方向に付勢しているものであり、この金属キャップ２６の固定は、予め封口板２２に電解液注入孔２２ｃの周囲を囲うようにして設けられた円環状凸部２２ｄをカシメ加工等により変形させて金属キャップ２６に押し当てることにより固定したものである。   Further, as shown in detail in FIG. 6, the pressure regulating valve 23 is a metal having a gas permeable member 24 and a closing body 25 disposed on the electrolyte solution injection hole 22c and having a hole 26a communicating with the outside. The metal cap 26 is fixed so as to be covered with the cap 26 and urged in a direction to always close the closing body 25. The metal cap 26 is fixed in advance so as to surround the periphery of the electrolyte injection hole 22c with the sealing plate 22. The annular convex portion 22d provided as described above is fixed by being deformed by caulking or the like and pressed against the metal cap 26.

また、上記圧力調整弁２３は、コンデンサの内部圧力が所定の圧力以上になると圧力を外部に逃がすための自己復帰型のものであり、コンデンサ内部で発生したガスを外部へ放出してコンデンサ内部の圧力の上昇を防ぐことができ、また作動後に圧力調整弁２３は作動前の状態に復帰してコンデンサ内部の気密性を保持することができるため、コンデンサ内部のガス発生による圧力の上昇においてもコンデンサの外観に異常をきたすことはなく、その特性を維持することができるものである。   The pressure regulating valve 23 is a self-recovering type for releasing the pressure to the outside when the internal pressure of the capacitor becomes a predetermined pressure or more. The gas generated inside the capacitor is discharged to the outside to discharge the gas inside the capacitor. Since the pressure can be prevented from rising and the pressure regulating valve 23 can return to the state before the operation and keep the airtightness inside the capacitor after the operation, the capacitor can be increased even when the pressure is increased due to gas generation inside the capacitor. The appearance is not abnormal, and the characteristics can be maintained.

また、圧力調整弁２３には、駆動用電解液の透過を防ぎ、かつコンデンサ内部で発生したガスを外部へ透過する材料を用いて構成したガス透過性部材２４を密着配設することにより、駆動用電解液が閉塞体２５に付着して圧力調整弁２３の機能を損なうことがなく、かつ圧力調整弁２３を介してコンデンサ外部への駆動用電解液の漏れを防ぐことができるものである。   Further, the pressure regulating valve 23 is provided with a gas permeable member 24 made of a material that prevents the driving electrolyte from passing therethrough and transmits gas generated inside the capacitor to the outside. Thus, the electrolytic solution does not adhere to the closing body 25 and the function of the pressure regulating valve 23 is not impaired, and the leakage of the driving electrolytic solution to the outside of the capacitor can be prevented through the pressure regulating valve 23.

このように構成された従来のコンデンサは、電解液注入孔２２ｃに圧力調整弁２３を配置させて固定することにより、駆動用電解液の漏出の可能性のある箇所を低減することができ、より信頼性の高いコンデンサを得ることができるというものであった。   The conventional capacitor configured as described above can reduce the places where the driving electrolyte solution may leak by disposing and fixing the pressure regulating valve 23 in the electrolyte solution injection hole 22c. It was that a highly reliable capacitor could be obtained.

なお、この出願の発明に関連する先行技術文献情報としては、例えば、特許文献１が知られている。
特開２００４−１３４６３２号公報 As prior art document information related to the invention of this application, for example, Patent Document 1 is known.
JP 2004-134632 A

しかしながら上記従来のコンデンサでは、電解液注入孔２２ｃに圧力調整弁２３を配置させて固定することにより駆動用電解液の漏出を低減させるようにはしているものの、ガス透過性部材２４と封口板２２とが接合されていないため、この界面から駆動用電解液が漏出し易いという問題があり、これを解決するためにはガス透過性部材２４と封口板２２とを接着あるいは溶着等により接合すれば良いが、両者の材料物性等の関係から接合が極めて困難であるという課題があった。   However, in the conventional capacitor described above, the leakage of the driving electrolyte is reduced by disposing and fixing the pressure regulating valve 23 in the electrolyte injection hole 22c, but the gas permeable member 24 and the sealing plate 22 is not joined, there is a problem that the driving electrolyte is likely to leak from this interface. To solve this problem, the gas permeable member 24 and the sealing plate 22 are joined by adhesion or welding. However, there is a problem that joining is extremely difficult due to the physical properties of both materials.

本発明はこのような従来の課題を解決し、駆動用電解液の漏出を無くして優れた信頼性を発揮することができるコンデンサを提供することを目的とするものである。   An object of the present invention is to solve such a conventional problem and to provide a capacitor capable of exhibiting excellent reliability by eliminating leakage of a driving electrolyte.

上記課題を解決するために本発明は、金属箔からなる集電体上に分極性電極層を形成した正負一対の電極をその間にセパレータを介在させて巻回し、正負の電極が互いに逆方向に位置するように構成されたコンデンサ素子と、このコンデンサ素子を駆動用電解液と共に収容し、かつ、コンデンサ素子の一方の電極を内底面に接合した有底筒状の金属ケースと、上記コンデンサ素子の他方の電極を内面に接合して上記金属ケースの開口部を封止した端子板からなり、この端子板に駆動用電解液注入用の孔を兼ねた圧力調整弁を設けたコンデンサにおいて、上記圧力調整弁が、上記端子板に設けた孔に嵌まり込む係合部を周面に設けると共に、この係合部の上端と下端に端子板の上面と下面に圧接する係止部を夫々設け、かつ、上下に貫通するスリットを中央に設け、このスリットの下端側に窪みを設けたゴム製の弁体と、この弁体に設けたスリットを塞ぐように弁体の底面に接合されたガス透過性シートからなり、上記弁体を端子板に設けた孔に圧入することにより弁体を圧縮状態で配設するように構成したものである。   In order to solve the above-described problems, the present invention is a method of winding a pair of positive and negative electrodes, each having a polarizable electrode layer formed on a current collector made of a metal foil, with a separator interposed therebetween, and the positive and negative electrodes are opposite to each other. A capacitor element configured to be positioned, a capacitor case containing the capacitor element together with a driving electrolyte, and a bottomed cylindrical metal case in which one electrode of the capacitor element is joined to the inner bottom surface; and the capacitor element In the capacitor comprising a terminal plate joined to the inner surface of the other electrode and sealing the opening of the metal case, and provided with a pressure regulating valve also serving as a hole for injecting the driving electrolyte in the terminal plate, The adjusting valve is provided with an engagement portion that fits into a hole provided in the terminal plate on the peripheral surface, and a locking portion that presses against an upper surface and a lower surface of the terminal plate is provided at an upper end and a lower end of the engagement portion, respectively. And the thread that penetrates up and down A rubber valve body provided with a recess at the lower end side of the slit, and a gas permeable sheet joined to the bottom surface of the valve body so as to close the slit provided in the valve body, The valve body is configured to be disposed in a compressed state by press-fitting the valve body into a hole provided in the terminal plate.

以上のように本発明によるコンデンサは、ガス透過性シートを弁体に設けたスリットを塞ぐように接合し、この弁体が端子板の孔に圧縮状態で保持されるようにした構成により、駆動用電解液の漏出をなくして信頼性に優れたコンデンサを実現することができるという効果が得られるものである。   As described above, the capacitor according to the present invention is driven by a configuration in which the gas permeable sheet is joined so as to close the slit provided in the valve body, and the valve body is held in a compressed state in the hole of the terminal plate. The effect that the capacitor | condenser excellent in reliability can be implement | achieved without the leakage of the electrolyte solution for operation is acquired.

（実施の形態）
以下、実施の形態を用いて、本発明の特に全請求項に記載の発明について説明する。 (Embodiment)
Hereinafter, the invention described in the entire claims of the present invention will be described by using embodiments.

図１は本発明の一実施の形態によるコンデンサの構成を示した断面図、図２は同コンデンサに使用される端子板の構成を示した上面斜視図、図３（ａ）、（ｂ）は同コンデンサに使用される圧力調整弁の構成を示した平面図と装着後の組み立て断面図である。   FIG. 1 is a cross-sectional view showing the structure of a capacitor according to an embodiment of the present invention, FIG. 2 is a top perspective view showing the structure of a terminal plate used in the capacitor, and FIGS. It is the top view which showed the structure of the pressure regulating valve used for the capacitor | condenser, and the assembly sectional drawing after mounting | wearing.

図１〜図３において、１はコンデンサ素子、１ａはこのコンデンサ素子１に形成された中空部を示し、このコンデンサ素子１はアルミニウム箔からなる集電体上に分極性電極層を形成した正負一対の電極を互いに逆方向に位置をずらしてその間にセパレータを介在させて巻回する（全て図示せず）ことにより構成され、このコンデンサ素子１の両端面（図１において上下方向）から陽極と陰極を夫々取り出すように構成されたものである。   1 to 3, reference numeral 1 denotes a capacitor element, 1a denotes a hollow portion formed in the capacitor element 1, and the capacitor element 1 is a pair of positive and negative electrodes in which a polarizable electrode layer is formed on a current collector made of an aluminum foil. The electrodes of the capacitor element 1 are shifted in opposite directions and wound with a separator interposed therebetween (all not shown), and the anode and cathode are formed from both end faces (vertical direction in FIG. 1) of the capacitor element 1. Are configured to take out each of them.

２は上記コンデンサ素子１を図示しない駆動用電解液と共に収容したアルミニウム製の有底筒状の金属ケース、２ａはこの金属ケース２の内底面に一体で設けられた突起であり、この突起２ａを上記コンデンサ素子１の中空部１ａ内に嵌め込むと共に、金属ケース２内に挿入されたコンデンサ素子１の陰極側の端面を金属ケース２の内底面にレーザー溶接等の手段によって機械的、かつ電気的に接合することにより、コンデンサ素子１の陰極側の電極を金属ケース２から取り出すようにしたものである。   Reference numeral 2 denotes an aluminum bottomed cylindrical metal case containing the capacitor element 1 together with a driving electrolyte (not shown). Reference numeral 2a denotes a protrusion integrally provided on the inner bottom surface of the metal case 2. The capacitor element 1 is fitted into the hollow portion 1 a of the capacitor element 1, and the cathode side end surface of the capacitor element 1 inserted into the metal case 2 is mechanically and electrically connected to the inner bottom surface of the metal case 2 by means of laser welding or the like. The electrode on the cathode side of the capacitor element 1 is taken out from the metal case 2 by bonding to the metal case 2.

３はアルミニウム製の端子板、３ａはこの端子板３の内面に一体で設けられた突起、３ｂは同じく内面に設けられた接合部、３ｃは表面に一体で設けられた外部接続用の陽極端子、３ｄは電解液注入用の孔であり、上記突起３ａをコンデンサ素子１の中空部１ａ内に嵌め込むと共に、コンデンサ素子１の陽極側の端面を上記接合部３ｂにレーザー溶接等の手段によって機械的、かつ電気的に接合し、この端子板３の周縁上で上記金属ケース２の開口部をその間に絶縁部材４を介在させて巻き込むように加工（一般に、カーリング加工と呼ばれる）することによって封止して構成したものである。   3 is an aluminum terminal plate, 3a is a protrusion integrally provided on the inner surface of the terminal plate 3, 3b is a joint provided on the same inner surface, and 3c is an anode terminal for external connection provided integrally on the surface. 3d is a hole for electrolyte injection, and the protrusion 3a is fitted into the hollow portion 1a of the capacitor element 1, and the end surface on the anode side of the capacitor element 1 is mechanically bonded to the joint portion 3b by means such as laser welding. And sealing the metal plate 2 by processing it so that the opening of the metal case 2 is wound on the periphery of the terminal plate 3 with the insulating member 4 interposed therebetween (generally called curling). It is configured to stop.

このように構成された本実施の形態によるコンデンサは、上記端子板３に設けた電解液注入用の孔３ｄから金属ケース２の内部に所定量の駆動用電解液を注入した後、この電解液注入用の孔３ｄを利用して圧力調整弁が装着されるように構成したものであり、この具体的な実施の形態を図３を用いて説明する。   In the capacitor according to the present embodiment configured as described above, a predetermined amount of driving electrolyte is injected into the metal case 2 through the electrolyte injection hole 3d provided in the terminal plate 3, and then the electrolyte The pressure adjusting valve is configured to be mounted using the injection hole 3d, and this specific embodiment will be described with reference to FIG.

図３において、５は端子板、５ａはこの端子板５に設けられた電解液注入用の孔、５ｂはこの孔５ａの底面側に設けた凹部である。６はゴム等の弾性を有した材料からなる弁体であり、６ａはこの弁体６の周面に設けられた上記端子板５が嵌まり込む係合部、６ｂと６ｃはこの係合部６ａの上端と下端に夫々設けられて上記端子板５の孔５ａの周縁の上面と下面に圧接する係止部、６ｄは弁体６の中央に設けられた上下に貫通するスリット、６ｅはこのスリット６ｄの下端側に設けられた窪みであり、本実施の形態においてはこの弁体６の材料としてイソプレンイソブチレンラバー（以下、ＩＩＲという）を用いたものであるが、ＥＰＴを用いても構わないものである。   In FIG. 3, 5 is a terminal plate, 5a is a hole for electrolyte injection provided in the terminal plate 5, and 5b is a recess provided on the bottom side of the hole 5a. 6 is a valve body made of an elastic material such as rubber, 6a is an engagement portion into which the terminal plate 5 provided on the peripheral surface of the valve body 6 is fitted, and 6b and 6c are engagement portions. Locking portions provided at the upper end and the lower end of 6a respectively to press contact with the upper and lower surfaces of the peripheral edge of the hole 5a of the terminal plate 5, 6d is a slit penetrating vertically provided in the center of the valve body 6, and 6e is this This is a recess provided on the lower end side of the slit 6d. In this embodiment, isoprene isobutylene rubber (hereinafter referred to as IIR) is used as the material of the valve body 6, but EPT may be used. Is.

７はゴム等の弾性を有した材料からなる弾性部材であり、この弾性部材７は上記弁体６に設けた係合部６ａならびに下端側の係止部６ｃの周面に被せるように接合されたものであり、本実施の形態においてはこの弾性部材７の材料としてエチレンプロピレンターポリマー（以下、ＥＰＴという）を用いたものである。８は上記弾性部材７の底面に接合されることにより上記弁体６に設けたスリット６ｄを塞ぐようにしたガス透過性シートであり、このガス透過性シート８はコンデンサの内部で発生したガスは透過させるが、駆動用電解液は透過させない物性のものである。   Reference numeral 7 denotes an elastic member made of a material having elasticity such as rubber. The elastic member 7 is joined so as to cover the peripheral surfaces of the engaging portion 6a provided on the valve body 6 and the locking portion 6c on the lower end side. In this embodiment, ethylene propylene terpolymer (hereinafter referred to as EPT) is used as the material of the elastic member 7. Reference numeral 8 denotes a gas permeable sheet which is bonded to the bottom surface of the elastic member 7 so as to close the slit 6d provided in the valve body 6, and the gas permeable sheet 8 is a gas generated inside the capacitor. It has a physical property that allows it to permeate but does not allow the driving electrolyte to permeate.

このように構成された本実施の形態による圧力調整弁は、弁体６に設けた係合部６ａならびに下端側の係止部６ｃの周面に弾性部材７を被せるように接合し、上記弁体６に設けたスリット６ｄを塞ぐように弾性部材７の底面にガス透過性シート８を接着等の手段によって接合した状態でこれらを端子板５に設けた孔５ａに圧入することにより弁体６が圧縮状態で保持され、図３（ｂ）に示すように圧力調整弁が装着されるようになるものである。   The pressure regulating valve according to the present embodiment configured as described above is joined so as to cover the elastic member 7 on the peripheral surface of the engaging portion 6a provided on the valve body 6 and the locking portion 6c on the lower end side. The valve body 6 is formed by press-fitting the gas permeable sheet 8 to the bottom surface of the elastic member 7 so as to close the slit 6d provided in the body 6 by bonding or the like to the hole 5a provided in the terminal plate 5. Is held in a compressed state, and a pressure regulating valve is mounted as shown in FIG.

このように構成された本実施の形態による圧力調整弁は、弾性部材７の底面とガス透過性シート８が接合されているため、コンデンサ内部で発生したガスはガス透過性シート８を透過して弁体６に設けた窪み６ｅを介してスリット６ｄを通過して外部へ放出されるようになり、また、駆動用電解液はガス透過性シート８を透過しないために弾性部材７によって漏出が防止される構成となり、優れた信頼性を発揮することができるようになるものである。   In the pressure regulating valve according to the present embodiment configured as described above, since the bottom surface of the elastic member 7 and the gas permeable sheet 8 are joined, the gas generated inside the capacitor permeates the gas permeable sheet 8. Through the recess 6e provided in the valve body 6, it passes through the slit 6d and is discharged to the outside, and since the driving electrolyte does not pass through the gas permeable sheet 8, the elastic member 7 prevents leakage. Therefore, it is possible to exhibit excellent reliability.

なお、本実施の形態による圧力調整弁をより簡素化するために、弁体６と弾性部材７を一体化することも可能であるが、この場合にはＩＩＲで構成された弁体６とガス透過性シート８との接着性が悪くなり、このために弁体６の動作圧力にバラツキが発生し易くなるために好ましくないものである。   In order to further simplify the pressure regulating valve according to the present embodiment, the valve body 6 and the elastic member 7 can be integrated. In this case, the valve body 6 constituted by IIR and the gas are used. Adhesiveness with the permeable sheet 8 is deteriorated, and therefore, the operating pressure of the valve body 6 is likely to vary, which is not preferable.

また、端子板５の孔５ａの底面側に設けた凹部５ｂは必ずしも必要なものではないが、この凹部５ｂを設けることにより、弁体６に設けた下端側の係止部６ｃがこの凹部５ｂ内に嵌まり込んで薄型化を図ることができるようになるものである。   Further, the concave portion 5b provided on the bottom surface side of the hole 5a of the terminal plate 5 is not necessarily required. However, by providing the concave portion 5b, the locking portion 6c provided on the lower end side of the valve body 6 is provided with the concave portion 5b. It is possible to reduce the thickness by being fitted inside.

また、本実施の形態においては弁体６を長方形の構成で説明したが、弁体の形状は円形であっても良く、このように弁体を円形にした場合の例を図４（ａ）、（ｂ）に示し、図４において、９は弁体、９ａはスリット、１０は弾性部材、８はガス透過性シートを示すものである。   Further, in the present embodiment, the valve body 6 has been described as having a rectangular configuration, but the shape of the valve body may be circular, and an example in which the valve body is circular in this way is shown in FIG. 4B, in FIG. 4, 9 is a valve body, 9a is a slit, 10 is an elastic member, and 8 is a gas permeable sheet.

本発明によるコンデンサは、駆動用電解液の漏出をなくして信頼性に優れるという効果を有し、特に高い信頼性が要求される自動車用等として有用である。   The capacitor according to the present invention has an effect of eliminating the leakage of the driving electrolyte and is excellent in reliability, and is particularly useful for automobiles that require high reliability.

本発明の実施の形態１によるコンデンサの構成を示した断面図Sectional drawing which showed the structure of the capacitor | condenser by Embodiment 1 of this invention 同コンデンサに使用される端子板の構成を示した上面斜視図Top perspective view showing the configuration of the terminal board used in the capacitor （ａ）同コンデンサに使用される圧力調整弁の構成を示した平面図、（ｂ）同装着後の組み立て断面図(A) Plan view showing the configuration of a pressure regulating valve used in the capacitor, (b) Assembly sectional view after mounting （ａ）同圧力調整弁の他の例を示した平面図、（ｂ）同装着後の組み立て断面図(A) Plan view showing another example of the same pressure regulating valve, (b) Assembly sectional view after mounting 従来のコンデンサの構成を示した断面図Sectional view showing the structure of a conventional capacitor 同コンデンサに設けられた圧力調整弁の構成を示した断面図Sectional drawing which showed the structure of the pressure regulation valve provided in the capacitor | condenser

符号の説明Explanation of symbols

１ コンデンサ素子
１ａ 中空部
２ 金属ケース
２ａ、３ａ 突起
３、５ 端子板
３ｂ 接合部
３ｃ 陽極端子
３ｄ、５ａ 電解液注入用の孔
４ 絶縁部材
５ｂ 凹部
６、９ 弁体
６ａ 係合部
６ｂ、６ｃ 係止部
６ｄ、９ａ スリット
６ｅ 窪み
７、１０ 弾性部材
８ ガス透過性シート DESCRIPTION OF SYMBOLS 1 Capacitor element 1a Hollow part 2 Metal case 2a, 3a Protrusion 3, 5 Terminal board 3b Joint part 3c Anode terminal 3d, 5a Electrolyte injection hole 4 Insulating member 5b Recessed part 6, 9 Valve body 6a Engagement part 6b, 6c Locking part 6d, 9a Slit 6e Depression 7, 10 Elastic member 8 Gas permeable sheet

Claims (4)

金属箔からなる集電体上に分極性電極層を形成した正負一対の電極をその間にセパレータを介在させて巻回し、正負の電極が互いに逆方向に位置するように構成されたコンデンサ素子と、このコンデンサ素子を駆動用電解液と共に収容し、かつ、コンデンサ素子の一方の電極を内底面に接合した有底筒状の金属ケースと、上記コンデンサ素子の他方の電極を内面に接合して上記金属ケースの開口部を封止した端子板からなり、この端子板に駆動用電解液注入用の孔を兼ねた圧力調整弁を設けたコンデンサにおいて、上記圧力調整弁が、上記端子板に設けた孔に嵌まり込む係合部を周面に設けると共に、この係合部の上端と下端に端子板の上面と下面に圧接する係止部を夫々設け、かつ、上下に貫通するスリットを中央に設け、このスリットの下端側に窪みを設けたゴム製の弁体と、この弁体に設けたスリットを塞ぐように弁体の底面に接合されたガス透過性シートからなり、上記弁体を端子板に設けた孔に圧入することにより弁体を圧縮状態で配設するように構成したものであるコンデンサ。 A capacitor element configured such that a pair of positive and negative electrodes in which a polarizable electrode layer is formed on a current collector made of metal foil is wound with a separator interposed therebetween, and the positive and negative electrodes are positioned in opposite directions; The capacitor element is housed together with the driving electrolyte, and a bottomed cylindrical metal case in which one electrode of the capacitor element is bonded to the inner bottom surface, and the other electrode of the capacitor element is bonded to the inner surface to A capacitor comprising a terminal plate that seals the opening of the case and provided with a pressure regulating valve that also serves as a hole for injecting a driving electrolyte in the terminal plate, wherein the pressure regulating valve is a hole provided in the terminal plate. An engaging portion that fits into the peripheral surface is provided on the peripheral surface, and an engaging portion that presses against the upper and lower surfaces of the terminal plate is provided on the upper and lower ends of the engaging portion, and a slit that penetrates vertically is provided in the center. Of this slit A hole made of a rubber valve body provided with a recess on the end side and a gas permeable sheet joined to the bottom surface of the valve body so as to close a slit provided in the valve body, and the valve body provided in the terminal plate A capacitor that is configured so that the valve body is disposed in a compressed state by being press-fitted into the tube. 弁体に設けた係合部ならびに下端側の係止部の周面にゴム製の弾性部材を被せるように接合し、この弾性部材の底面にガス透過性シートを接合した請求項１に記載のコンデンサ。 The gas permeable sheet according to claim 1, wherein a rubber elastic member is attached to the peripheral surface of the engaging portion provided on the valve body and the engaging portion on the lower end side, and a gas permeable sheet is bonded to the bottom surface of the elastic member. Capacitor. 弁体の材料をイソプレンイソブチレンラバー、弾性部材の材料をエチレンプロピレンターポリマーとした請求項２に記載のコンデンサ。 The capacitor according to claim 2, wherein the valve body material is isoprene isobutylene rubber, and the elastic member material is ethylene propylene terpolymer. 端子板に設けた電解液注入用の孔の底面側に、弁体に設けた下端側の係止部が嵌まり込む凹部を設けた請求項１に記載のコンデンサ。 The capacitor according to claim 1, wherein a recess into which a lower end side locking portion provided in the valve body is fitted is provided on the bottom surface side of the electrolyte injection hole provided in the terminal plate.
JP2005215350A 2005-07-26 2005-07-26 Capacitor Expired - Fee Related JP4613733B2 (en)

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JP2005215350A JP4613733B2 (en) 2005-07-26 2005-07-26 Capacitor
US11/917,833 US7706127B2 (en) 2005-07-26 2006-07-26 Capacitor
PCT/JP2006/314754 WO2007013500A1 (en) 2005-07-26 2006-07-26 Capacitor
EP06781666.0A EP1909299A4 (en) 2005-07-26 2006-07-26 Capacitor
CN200680025979.1A CN101223615B (en) 2005-07-26 2006-07-26 Capacitor
KR1020087001804A KR100946010B1 (en) 2005-07-26 2006-07-26 Capacitor

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001230161A (en) * 2000-02-16 2001-08-24 Nippon Chemicon Corp Pressure regulating valve and capacitor
JP2002260622A (en) * 2001-03-02 2002-09-13 Nok Corp Seal plate
JP2005116955A (en) * 2003-10-10 2005-04-28 Nichicon Corp Capacitor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001230161A (en) * 2000-02-16 2001-08-24 Nippon Chemicon Corp Pressure regulating valve and capacitor
JP2002260622A (en) * 2001-03-02 2002-09-13 Nok Corp Seal plate
JP2005116955A (en) * 2003-10-10 2005-04-28 Nichicon Corp Capacitor

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