JPS61194816A - Capacitor - Google Patents
CapacitorInfo
- Publication number
- JPS61194816A JPS61194816A JP3583085A JP3583085A JPS61194816A JP S61194816 A JPS61194816 A JP S61194816A JP 3583085 A JP3583085 A JP 3583085A JP 3583085 A JP3583085 A JP 3583085A JP S61194816 A JPS61194816 A JP S61194816A
- Authority
- JP
- Japan
- Prior art keywords
- dielectric film
- capacitor
- electrode material
- film
- sides
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003990 capacitor Substances 0.000 title claims description 39
- 239000007772 electrode material Substances 0.000 claims description 22
- 239000004840 adhesive resin Substances 0.000 claims description 13
- 229920006223 adhesive resin Polymers 0.000 claims description 13
- 238000010030 laminating Methods 0.000 claims description 3
- 238000004804 winding Methods 0.000 claims description 3
- -1 polypropylene Polymers 0.000 description 8
- 229920005989 resin Polymers 0.000 description 7
- 239000011347 resin Substances 0.000 description 7
- 239000004743 Polypropylene Substances 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 230000006866 deterioration Effects 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 239000004698 Polyethylene Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 229920000573 polyethylene Polymers 0.000 description 2
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- XYWMWLADMNOAAA-UHFFFAOYSA-N acetic acid;buta-1,3-diene Chemical group CC(O)=O.C=CC=C XYWMWLADMNOAAA-UHFFFAOYSA-N 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 239000003989 dielectric material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 229920001038 ethylene copolymer Polymers 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 238000004904 shortening Methods 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G4/00—Fixed capacitors; Processes of their manufacture
- H01G4/30—Stacked capacitors
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
産業上の利用分野
本発明は耐コロナ放電特性を改良したコンデンサに関す
る。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a capacitor with improved corona discharge resistance.
従来の技術
従来のコンデンサは電極材料を誘電体フィルムの片面に
蒸着させたコンデンサ素子を巻回するかもしくは積層さ
せて構成するか、あるいは電極材料を誘電体フィルムの
両面に蒸着させたコンデンサ素子を、間に別の誘電体゛
フィルムを介在させて巻回するか、もしくは積層させて
構成されている〇
発明が解決しようとする問題点
上述した従来のコンデンサにおいては、巻回もしくは積
層されたコンデンサ素子の誘電体フィルムと隣接位置す
るコンデンサ素子の電極材料との間に微小な間隙が介在
することはまぬかれないのが現状である。かかる間隙が
存在すると形成されたコンデンサのコロナ発生電圧が低
くなり、実用時にコロナ発生を完全に防止することはで
きない欠点を有する。かかるコロナの発生は電極材料の
変質もしくは損傷を生ぜしめコンデンサの容量減少を大
きくする傾向があり、コンデンサの寿命短縮を生せしめ
る欠点を有する。また乾式方式での高電圧領域への適用
も困難ならしめている。Conventional technology Conventional capacitors are constructed by winding or laminating a capacitor element in which electrode material is deposited on one side of a dielectric film, or by a capacitor element in which electrode material is deposited on both sides of a dielectric film. 〇Problems to be Solved by the Invention In the conventional capacitors described above, the capacitors are wound or laminated with another dielectric film interposed therebetween. At present, it is inevitable that a minute gap exists between the dielectric film of the element and the electrode material of the adjacent capacitor element. If such a gap exists, the corona generation voltage of the formed capacitor will be low, and there is a drawback that corona generation cannot be completely prevented in practical use. The generation of such corona tends to cause deterioration or damage to the electrode material and to increase the reduction in capacitance of the capacitor, which has the disadvantage of shortening the life of the capacitor. It also makes it difficult to apply the dry method to high voltage areas.
従って本発明の目的は、上述した従来のコンデンサにお
ける誘電体フィルムと隣接するコンデンサ素子の電極材
料との間の間隙を実質的になくシ、耐コロナ放電特性を
改良したコンデンサを提供することにある。Therefore, an object of the present invention is to provide a capacitor which substantially eliminates the gap between the dielectric film and the electrode material of the adjacent capacitor element in the conventional capacitor described above, and which has improved corona discharge resistance. .
問題点を解決するための手段
本発明は、電極材料招よび誘電体フィルムからなるコン
デンサ素子を巻回または積層してなるコンデンサにおい
て、上記コンデンサ素子が（１〕上記誘電体フィルムの
片面番こ電極材料を有する場合には誘電フィルムの他面
に、（２）上記誘電体フィルムの両面に電極材料を有す
る場合には介在させる別の誘電体フィルムの両面に、熱
接着性樹脂層を設けたコンデンサにある。Means for Solving the Problems The present invention provides a capacitor formed by winding or laminating a capacitor element made of an electrode material and a dielectric film, in which the capacitor element has (1) a single-sided grid electrode of the dielectric film; (2) a thermal adhesive resin layer provided on both sides of another dielectric film interposed when electrode materials are provided on both sides of the dielectric film; It is in.
本発明で使用する電極材料としては、亜鉛、アルミニウ
ムの如き周知の金属材料を使用することができ、これら
は通常誘電体フィルムに周知の方法で蒸着により付与す
る。また電極材料を蒸着付与する誘電体フィルムおよび
介在させる誘電体フィルムとしてはポリエステル、ポリ
カーボネート、ポリプロピレン、ポリスルホン等周知の
フィルム誘電体を使用できる。As the electrode material used in the present invention, well-known metal materials such as zinc and aluminum can be used, and these are usually applied to the dielectric film by vapor deposition in a well-known manner. Further, as the dielectric film on which the electrode material is deposited and the intervening dielectric film, well-known film dielectrics such as polyester, polycarbonate, polypropylene, polysulfone, etc. can be used.
本発明における熱接着性樹脂層を形成する樹脂としては
、ポリエチレンとワックスの混合物、ポリプロピレンと
ワックスの混合物、エチレン−酢酸ビニル共重合体、ポ
リエチレンまたはポリプロピレンと極性基を有する他の
重合体とのブロック共重合体または混合物等を使用でき
る。In the present invention, the resin forming the thermoadhesive resin layer includes a mixture of polyethylene and wax, a mixture of polypropylene and wax, an ethylene-vinyl acetate copolymer, a block of polyethylene or polypropylene and another polymer having a polar group. Copolymers, mixtures, etc. can be used.
本発明により上記熱接着性樹脂層を誘電体フィルム（こ
れは介在させるフィルムまたは電極材料を蒸着させるフ
ィルムの何れでもよい）の片面または両面（介在フィル
ムの場合）に任意の方法で塗布し、次いでフィルムを延
伸させて可及的にフィルムおかび熱接着性樹脂層の厚さ
を小さくするのが好ましい。このため、誘電体フィルム
の熱延伸温度よりも上記熱接着性樹脂の軟化点が低いこ
とか好ましい。片面に電極材料を蒸着させる必要がある
場合には、上述した如く他面に熱接着性樹脂層を付与し
たフィルムに電極材料を蒸着させる。According to the present invention, the above heat-adhesive resin layer is applied by any method to one or both sides (in the case of an intervening film) of a dielectric film (this can be either an intervening film or a film on which electrode material is deposited), and then It is preferable to stretch the film to reduce the thickness of the film and the thermoadhesive resin layer as much as possible. For this reason, it is preferable that the softening point of the thermoadhesive resin is lower than the hot stretching temperature of the dielectric film. When it is necessary to deposit an electrode material on one side, the electrode material is deposited on a film provided with a heat-adhesive resin layer on the other side as described above.
本発明においては誘電体フィルムの片面に電極材料を有
し、他面に上述した如く熱接着性樹脂層を設けた誘電体
フィルムからなるコンデンサ素子、または両面に電機材
料を有する誘電体フィルムからなるコンデンサ素子の場
合、両面に熱接着性樹脂層を設けた誘電体フィルムを介
在させて、上記コンデンサ素子を巻回または積層すると
、各電極材料は上記熱接着性樹脂層と接着するようにな
ってコンデンサを構成できる。In the present invention, a capacitor element is made of a dielectric film having an electrode material on one side and a heat-adhesive resin layer on the other side, or a dielectric film having an electrical material on both sides. In the case of a capacitor element, when the capacitor element is wound or laminated with a dielectric film provided with a heat-adhesive resin layer on both sides, each electrode material is bonded to the heat-adhesive resin layer. Capacitors can be configured.
次いでかかる構成にて作ったコンデンサをアニーリング
して熱接着性樹脂層と電極材料面とを充分かつ完全に接
着させる。Next, the capacitor made with this configuration is annealed to sufficiently and completely bond the thermal adhesive resin layer and the electrode material surface.
作用
本発明によれば上述した如く構成することにより誘電体
フィルム而と電極材料の間に熱接着性樹脂か介在し、従
来のコ、ンデンサにおいて生ずることのあった間隙が、
熱接着性樹脂層で充填されるので、間隙か存在しなくな
る。このため間隙存在による従来のコンデンサにおける
コロナ放電による劣化か解消されるか、コロナ放電発生
’ｌ１ＥＩＥの増大をもたらすことができる。According to the present invention, by having the structure as described above, a thermal adhesive resin is interposed between the dielectric film and the electrode material, and the gap that may occur in conventional capacitors is eliminated.
Since it is filled with a heat-adhesive resin layer, there are no gaps. Therefore, the deterioration caused by corona discharge in the conventional capacitor due to the presence of the gap can be eliminated, or the corona discharge occurrence 'l1EIE can be increased.
実施例 以下に図面を参照して本発明を具体的に説明する。Example The present invention will be specifically described below with reference to the drawings.
第１図は本発明によるコンデンサの一部断面説明図であ
り、第１図においては誘電体フィルムの両面に電極材料
を蒸着した場合の例を示す。FIG. 1 is a partial cross-sectional view of a capacitor according to the present invention, and FIG. 1 shows an example in which electrode materials are deposited on both sides of a dielectric film.
第２図は第１図のコンデンサを構成するに当って使用し
た両面に熱接着性樹脂層を設けた誘電体フィルムの断面
略図を示す。FIG. 2 shows a schematic cross-sectional view of a dielectric film with heat-adhesive resin layers provided on both sides, which was used to construct the capacitor shown in FIG. 1.
ｇｓ２図に示す如く、本発明番こおいては厚さ約１００
μ協のポリプロピレンフィルム３の両面に、酢酬ビニル
ーエチレン共重合体からなる熱接着性樹脂Ｉｆｆ ４を
塗布し、次いで１５０℃で２軸延伸して、ポリプロピレ
ンフィルム３の厚さ５μｍ１熱接着性樹脂層４の厚さそ
れぞれ約０．５μｍとして介在フィルム５を作った。As shown in Figure GS2, the thickness of the present invention is approximately 100 mm.
A thermoadhesive resin Iff 4 made of acetic acid vinyl-ethylene copolymer is applied to both sides of the μ-kyo polypropylene film 3, and then biaxially stretched at 150°C until the thickness of the polypropylene film 3 is 5 μm. The intervening film 5 was made so that the thickness of each resin layer 4 was about 0.5 μm.
別にＡ１金属電極材料２をポリエステルフィルム１の両
面に蒸着させ作ったコンデンサ素子と上記介在フィルム
５とを合せて巻回し、次いで１２０〜１３０℃で真空中
で１０時間アニーリングした後、エポキシ樹脂で全体を
包埋してコンデンサを作った。Separately, a capacitor element made by vapor-depositing A1 metal electrode material 2 on both sides of polyester film 1 and the intervening film 5 are wound together, and then annealed at 120 to 130°C in vacuum for 10 hours, and then covered with epoxy resin. I made a capacitor by embedding it.
かくして作ったコンデンサのコロナ発生電圧を測定した
ところ４００〜５００ｖとなった。When the corona generation voltage of the capacitor thus made was measured, it was 400 to 500V.
これに対し、従来の同様のコンデンサ、即ち熱接着性樹
脂層を設けない誘電体ポリプロピレンフィルムのみを介
在させて作ったコンデンサのコロナ発生［ＩＥは２５０
〜３００Ｖと低いものであった。On the other hand, corona occurs in a similar conventional capacitor, that is, a capacitor made only with a dielectric polypropylene film without a heat-adhesive resin layer [IE is 250
The voltage was as low as ~300V.
発明の効果
本発明によるコンデンサは従来のコンデンサに比し、コ
ロナ発生電圧が高く、従ってコロナ発生劣化によるコン
デンサの寿命短縮、容量変化を防止することができ、ま
た乾式方式の高電圧領域での適用を”Ｊ能にできる。Effects of the Invention The capacitor according to the present invention has a higher corona generation voltage than conventional capacitors, so it is possible to shorten the life of the capacitor and prevent capacitance changes due to corona generation and deterioration. can be made into J-Noh.
第１図は本発明によるコンデンサの一部断面説明図であ
り、第２図は両面に熱接着性樹脂層を設けた誘電体フィ
ルムの断面略図である。
１は誘電体フィルム、２は電極材料、３は誘電体フィル
ム、４は熱接着性樹脂層、５は介在フィルム。
第１図
第２図FIG. 1 is a partially cross-sectional explanatory diagram of a capacitor according to the present invention, and FIG. 2 is a schematic cross-sectional diagram of a dielectric film provided with heat-adhesive resin layers on both sides. 1 is a dielectric film, 2 is an electrode material, 3 is a dielectric film, 4 is a thermoadhesive resin layer, and 5 is an intervening film. Figure 1 Figure 2
Claims (1)
素子を巻回または積層してなるコンデンサにおいて、上
記コンデンサ素子が（１）上記誘電体フィルムの片面に
電極材料を有する場合には誘電体フィルムの他面に、（
２）上記誘電体フィルムの両面に電極材料を有する場合
には介在させる別の誘電体フィルムの両面に熱接着性樹
脂層を設けたことを特徴とするコンデンサ。1. In a capacitor formed by winding or laminating a capacitor element consisting of an electrode material and a dielectric film, if the capacitor element has (1) the electrode material on one side of the dielectric film, the other side of the dielectric film; To, (
2) A capacitor characterized in that, when electrode materials are provided on both sides of the dielectric film, thermal adhesive resin layers are provided on both sides of another intervening dielectric film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3583085A JPS61194816A (en) | 1985-02-25 | 1985-02-25 | Capacitor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3583085A JPS61194816A (en) | 1985-02-25 | 1985-02-25 | Capacitor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS61194816A true JPS61194816A (en) | 1986-08-29 |
Family
ID=12452875
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3583085A Pending JPS61194816A (en) | 1985-02-25 | 1985-02-25 | Capacitor |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS61194816A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63122113A (en) * | 1986-11-11 | 1988-05-26 | マルコン電子株式会社 | Manufacture of laminated paper-less electrolytic capacitor |
| WO2000038204A1 (en) * | 1998-12-22 | 2000-06-29 | Matsushita Electric Industrial Co., Ltd. | Method for producing wound plastic film capacitor |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810813A (en) * | 1981-07-13 | 1983-01-21 | 松下電器産業株式会社 | Condenser |
-
1985
- 1985-02-25 JP JP3583085A patent/JPS61194816A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5810813A (en) * | 1981-07-13 | 1983-01-21 | 松下電器産業株式会社 | Condenser |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS63122113A (en) * | 1986-11-11 | 1988-05-26 | マルコン電子株式会社 | Manufacture of laminated paper-less electrolytic capacitor |
| WO2000038204A1 (en) * | 1998-12-22 | 2000-06-29 | Matsushita Electric Industrial Co., Ltd. | Method for producing wound plastic film capacitor |
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